diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-03-23 23:45:24 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-03-23 23:45:24 +0300 |
| commit | caa445d808d27880f92d866902f6717f4d4cd3ca (patch) | |
| tree | c46a564ecbce58310436f0f30b8f3c6d5d93c19b /drivers | |
| parent | 48d7ff0eaacbe5a51037bdb06a8a0a729b804b5f (diff) | |
| parent | bc465aa9d045feb0e13b4a8f32cc33c1943f62d6 (diff) | |
| download | linux-caa445d808d27880f92d866902f6717f4d4cd3ca.tar.xz | |
Merge 4.0-rc5 into tty-next
We want the tty/serial fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
230 files changed, 2804 insertions, 2709 deletions
diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c index 657964e8ab7e..37fb19047603 100644 --- a/drivers/acpi/acpi_lpss.c +++ b/drivers/acpi/acpi_lpss.c @@ -65,6 +65,7 @@ struct lpss_private_data; struct lpss_device_desc { unsigned int flags; + const char *clk_con_id; unsigned int prv_offset; size_t prv_size_override; void (*setup)(struct lpss_private_data *pdata); @@ -140,6 +141,7 @@ static struct lpss_device_desc lpt_i2c_dev_desc = { static struct lpss_device_desc lpt_uart_dev_desc = { .flags = LPSS_CLK | LPSS_CLK_GATE | LPSS_CLK_DIVIDER | LPSS_LTR, + .clk_con_id = "baudclk", .prv_offset = 0x800, .setup = lpss_uart_setup, }; @@ -156,6 +158,7 @@ static struct lpss_device_desc byt_pwm_dev_desc = { static struct lpss_device_desc byt_uart_dev_desc = { .flags = LPSS_CLK | LPSS_CLK_GATE | LPSS_CLK_DIVIDER | LPSS_SAVE_CTX, + .clk_con_id = "baudclk", .prv_offset = 0x800, .setup = lpss_uart_setup, }; @@ -313,7 +316,7 @@ out: return PTR_ERR(clk); pdata->clk = clk; - clk_register_clkdev(clk, NULL, devname); + clk_register_clkdev(clk, dev_desc->clk_con_id, devname); return 0; } diff --git a/drivers/acpi/pci_irq.c b/drivers/acpi/pci_irq.c index e7f718d6918a..b1def411c0b8 100644 --- a/drivers/acpi/pci_irq.c +++ b/drivers/acpi/pci_irq.c @@ -485,6 +485,14 @@ void acpi_pci_irq_disable(struct pci_dev *dev) if (!pin || !dev->irq_managed || dev->irq <= 0) return; + /* Keep IOAPIC pin configuration when suspending */ + if (dev->dev.power.is_prepared) + return; +#ifdef CONFIG_PM + if (dev->dev.power.runtime_status == RPM_SUSPENDING) + return; +#endif + entry = acpi_pci_irq_lookup(dev, pin); if (!entry) return; @@ -505,6 +513,5 @@ void acpi_pci_irq_disable(struct pci_dev *dev) if (gsi >= 0) { acpi_unregister_gsi(gsi); dev->irq_managed = 0; - dev->irq = 0; } } diff --git a/drivers/ata/sata_fsl.c b/drivers/ata/sata_fsl.c index f9054cd36a72..5389579c5120 100644 --- a/drivers/ata/sata_fsl.c +++ b/drivers/ata/sata_fsl.c @@ -869,6 +869,8 @@ try_offline_again: */ ata_msleep(ap, 1); + sata_set_spd(link); + /* * Now, bring the host controller online again, this can take time * as PHY reset and communication establishment, 1st D2H FIS and diff --git a/drivers/base/regmap/regcache-rbtree.c b/drivers/base/regmap/regcache-rbtree.c index d453a2c98ad0..81751a49d8bf 100644 --- a/drivers/base/regmap/regcache-rbtree.c +++ b/drivers/base/regmap/regcache-rbtree.c @@ -307,7 +307,7 @@ static int regcache_rbtree_insert_to_block(struct regmap *map, if (pos == 0) { memmove(blk + offset * map->cache_word_size, blk, rbnode->blklen * map->cache_word_size); - bitmap_shift_right(present, present, offset, blklen); + bitmap_shift_left(present, present, offset, blklen); } /* update the rbnode block, its size and the base register */ diff --git a/drivers/base/regmap/regcache.c b/drivers/base/regmap/regcache.c index f373c35f9e1d..da84f544c544 100644 --- a/drivers/base/regmap/regcache.c +++ b/drivers/base/regmap/regcache.c @@ -608,7 +608,8 @@ static int regcache_sync_block_single(struct regmap *map, void *block, for (i = start; i < end; i++) { regtmp = block_base + (i * map->reg_stride); - if (!regcache_reg_present(cache_present, i)) + if (!regcache_reg_present(cache_present, i) || + !regmap_writeable(map, regtmp)) continue; val = regcache_get_val(map, block, i); @@ -677,7 +678,8 @@ static int regcache_sync_block_raw(struct regmap *map, void *block, for (i = start; i < end; i++) { regtmp = block_base + (i * map->reg_stride); - if (!regcache_reg_present(cache_present, i)) { + if (!regcache_reg_present(cache_present, i) || + !regmap_writeable(map, regtmp)) { ret = regcache_sync_block_raw_flush(map, &data, base, regtmp); if (ret != 0) diff --git a/drivers/base/regmap/regmap-irq.c b/drivers/base/regmap/regmap-irq.c index 6299a50a5960..a6c3f75b4b01 100644 --- a/drivers/base/regmap/regmap-irq.c +++ b/drivers/base/regmap/regmap-irq.c @@ -499,7 +499,8 @@ int regmap_add_irq_chip(struct regmap *map, int irq, int irq_flags, goto err_alloc; } - ret = request_threaded_irq(irq, NULL, regmap_irq_thread, irq_flags, + ret = request_threaded_irq(irq, NULL, regmap_irq_thread, + irq_flags | IRQF_ONESHOT, chip->name, d); if (ret != 0) { dev_err(map->dev, "Failed to request IRQ %d for %s: %d\n", diff --git a/drivers/char/tpm/tpm-chip.c b/drivers/char/tpm/tpm-chip.c index 1d278ccd751f..e096e9cddb40 100644 --- a/drivers/char/tpm/tpm-chip.c +++ b/drivers/char/tpm/tpm-chip.c @@ -140,24 +140,24 @@ static int tpm_dev_add_device(struct tpm_chip *chip) { int rc; - rc = device_add(&chip->dev); + rc = cdev_add(&chip->cdev, chip->dev.devt, 1); if (rc) { dev_err(&chip->dev, - "unable to device_register() %s, major %d, minor %d, err=%d\n", + "unable to cdev_add() %s, major %d, minor %d, err=%d\n", chip->devname, MAJOR(chip->dev.devt), MINOR(chip->dev.devt), rc); + device_unregister(&chip->dev); return rc; } - rc = cdev_add(&chip->cdev, chip->dev.devt, 1); + rc = device_add(&chip->dev); if (rc) { dev_err(&chip->dev, - "unable to cdev_add() %s, major %d, minor %d, err=%d\n", + "unable to device_register() %s, major %d, minor %d, err=%d\n", chip->devname, MAJOR(chip->dev.devt), MINOR(chip->dev.devt), rc); - device_unregister(&chip->dev); return rc; } @@ -174,27 +174,17 @@ static void tpm_dev_del_device(struct tpm_chip *chip) * tpm_chip_register() - create a character device for the TPM chip * @chip: TPM chip to use. * - * Creates a character device for the TPM chip and adds sysfs interfaces for - * the device, PPI and TCPA. As the last step this function adds the - * chip to the list of TPM chips available for use. + * Creates a character device for the TPM chip and adds sysfs attributes for + * the device. As the last step this function adds the chip to the list of TPM + * chips available for in-kernel use. * - * NOTE: This function should be only called after the chip initialization - * is complete. - * - * Called from tpm_<specific>.c probe function only for devices - * the driver has determined it should claim. Prior to calling - * this function the specific probe function has called pci_enable_device - * upon errant exit from this function specific probe function should call - * pci_disable_device + * This function should be only called after the chip initialization is + * complete. */ int tpm_chip_register(struct tpm_chip *chip) { int rc; - rc = tpm_dev_add_device(chip); - if (rc) - return rc; - /* Populate sysfs for TPM1 devices. */ if (!(chip->flags & TPM_CHIP_FLAG_TPM2)) { rc = tpm_sysfs_add_device(chip); @@ -208,6 +198,10 @@ int tpm_chip_register(struct tpm_chip *chip) chip->bios_dir = tpm_bios_log_setup(chip->devname); } + rc = tpm_dev_add_device(chip); + if (rc) + return rc; + /* Make the chip available. */ spin_lock(&driver_lock); list_add_rcu(&chip->list, &tpm_chip_list); diff --git a/drivers/char/tpm/tpm_ibmvtpm.c b/drivers/char/tpm/tpm_ibmvtpm.c index b1e53e3aece5..42ffa5e7a1e0 100644 --- a/drivers/char/tpm/tpm_ibmvtpm.c +++ b/drivers/char/tpm/tpm_ibmvtpm.c @@ -124,7 +124,7 @@ static int tpm_ibmvtpm_send(struct tpm_chip *chip, u8 *buf, size_t count) { struct ibmvtpm_dev *ibmvtpm; struct ibmvtpm_crq crq; - u64 *word = (u64 *) &crq; + __be64 *word = (__be64 *)&crq; int rc; ibmvtpm = (struct ibmvtpm_dev *)TPM_VPRIV(chip); @@ -145,11 +145,11 @@ static int tpm_ibmvtpm_send(struct tpm_chip *chip, u8 *buf, size_t count) memcpy((void *)ibmvtpm->rtce_buf, (void *)buf, count); crq.valid = (u8)IBMVTPM_VALID_CMD; crq.msg = (u8)VTPM_TPM_COMMAND; - crq.len = (u16)count; - crq.data = ibmvtpm->rtce_dma_handle; + crq.len = cpu_to_be16(count); + crq.data = cpu_to_be32(ibmvtpm->rtce_dma_handle); - rc = ibmvtpm_send_crq(ibmvtpm->vdev, cpu_to_be64(word[0]), - cpu_to_be64(word[1])); + rc = ibmvtpm_send_crq(ibmvtpm->vdev, be64_to_cpu(word[0]), + be64_to_cpu(word[1])); if (rc != H_SUCCESS) { dev_err(ibmvtpm->dev, "tpm_ibmvtpm_send failed rc=%d\n", rc); rc = 0; diff --git a/drivers/char/tpm/tpm_ibmvtpm.h b/drivers/char/tpm/tpm_ibmvtpm.h index f595f14426bf..6af92890518f 100644 --- a/drivers/char/tpm/tpm_ibmvtpm.h +++ b/drivers/char/tpm/tpm_ibmvtpm.h @@ -22,9 +22,9 @@ struct ibmvtpm_crq { u8 valid; u8 msg; - u16 len; - u32 data; - u64 reserved; + __be16 len; + __be32 data; + __be64 reserved; } __attribute__((packed, aligned(8))); struct ibmvtpm_crq_queue { diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c index fae2dbbf5745..72d7028f779b 100644 --- a/drivers/char/virtio_console.c +++ b/drivers/char/virtio_console.c @@ -142,6 +142,7 @@ struct ports_device { * notification */ struct work_struct control_work; + struct work_struct config_work; struct list_head ports; @@ -1837,10 +1838,21 @@ static void config_intr(struct virtio_device *vdev) portdev = vdev->priv; + if (!use_multiport(portdev)) + schedule_work(&portdev->config_work); +} + +static void config_work_handler(struct work_struct *work) +{ + struct ports_device *portdev; + + portdev = container_of(work, struct ports_device, control_work); if (!use_multiport(portdev)) { + struct virtio_device *vdev; struct port *port; u16 rows, cols; + vdev = portdev->vdev; virtio_cread(vdev, struct virtio_console_config, cols, &cols); virtio_cread(vdev, struct virtio_console_config, rows, &rows); @@ -2040,12 +2052,14 @@ static int virtcons_probe(struct virtio_device *vdev) virtio_device_ready(portdev->vdev); + INIT_WORK(&portdev->config_work, &config_work_handler); + INIT_WORK(&portdev->control_work, &control_work_handler); + if (multiport) { unsigned int nr_added_bufs; spin_lock_init(&portdev->c_ivq_lock); spin_lock_init(&portdev->c_ovq_lock); - INIT_WORK(&portdev->control_work, &control_work_handler); nr_added_bufs = fill_queue(portdev->c_ivq, &portdev->c_ivq_lock); @@ -2113,6 +2127,8 @@ static void virtcons_remove(struct virtio_device *vdev) /* Finish up work that's lined up */ if (use_multiport(portdev)) cancel_work_sync(&portdev->control_work); + else + cancel_work_sync(&portdev->config_work); list_for_each_entry_safe(port, port2, &portdev->ports, list) unplug_port(port); @@ -2164,6 +2180,7 @@ static int virtcons_freeze(struct virtio_device *vdev) virtqueue_disable_cb(portdev->c_ivq); cancel_work_sync(&portdev->control_work); + cancel_work_sync(&portdev->config_work); /* * Once more: if control_work_handler() was running, it would * enable the cb as the last step. diff --git a/drivers/clk/clk-divider.c b/drivers/clk/clk-divider.c index db7f8bce7467..25006a8bb8e6 100644 --- a/drivers/clk/clk-divider.c +++ b/drivers/clk/clk-divider.c @@ -144,12 +144,6 @@ static unsigned long clk_divider_recalc_rate(struct clk_hw *hw, divider->flags); } -/* - * The reverse of DIV_ROUND_UP: The maximum number which - * divided by m is r - */ -#define MULT_ROUND_UP(r, m) ((r) * (m) + (m) - 1) - static bool _is_valid_table_div(const struct clk_div_table *table, unsigned int div) { @@ -225,19 +219,24 @@ static int _div_round_closest(const struct clk_div_table *table, unsigned long parent_rate, unsigned long rate, unsigned long flags) { - int up, down, div; + int up, down; + unsigned long up_rate, down_rate; - up = down = div = DIV_ROUND_CLOSEST(parent_rate, rate); + up = DIV_ROUND_UP(parent_rate, rate); + down = parent_rate / rate; if (flags & CLK_DIVIDER_POWER_OF_TWO) { - up = __roundup_pow_of_two(div); - down = __rounddown_pow_of_two(div); + up = __roundup_pow_of_two(up); + down = __rounddown_pow_of_two(down); } else if (table) { - up = _round_up_table(table, div); - down = _round_down_table(table, div); + up = _round_up_table(table, up); + down = _round_down_table(table, down); } - return (up - div) <= (div - down) ? up : down; + up_rate = DIV_ROUND_UP(parent_rate, up); + down_rate = DIV_ROUND_UP(parent_rate, down); + + return (rate - up_rate) <= (down_rate - rate) ? up : down; } static int _div_round(const struct clk_div_table *table, @@ -313,7 +312,7 @@ static int clk_divider_bestdiv(struct clk_hw *hw, unsigned long rate, return i; } parent_rate = __clk_round_rate(__clk_get_parent(hw->clk), - MULT_ROUND_UP(rate, i)); + rate * i); now = DIV_ROUND_UP(parent_rate, i); if (_is_best_div(rate, now, best, flags)) { bestdiv = i; @@ -353,7 +352,7 @@ static long clk_divider_round_rate(struct clk_hw *hw, unsigned long rate, bestdiv = readl(divider->reg) >> divider->shift; bestdiv &= div_mask(divider->width); bestdiv = _get_div(divider->table, bestdiv, divider->flags); - return bestdiv; + return DIV_ROUND_UP(*prate, bestdiv); } return divider_round_rate(hw, rate, prate, divider->table, diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index eb0152961d3c..237f23f68bfc 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -1350,7 +1350,6 @@ static unsigned long clk_core_get_rate(struct clk_core *clk) return rate; } -EXPORT_SYMBOL_GPL(clk_core_get_rate); /** * clk_get_rate - return the rate of clk @@ -2171,6 +2170,32 @@ int clk_get_phase(struct clk *clk) } /** + * clk_is_match - check if two clk's point to the same hardware clock + * @p: clk compared against q + * @q: clk compared against p + * + * Returns true if the two struct clk pointers both point to the same hardware + * clock node. Put differently, returns true if struct clk *p and struct clk *q + * share the same struct clk_core object. + * + * Returns false otherwise. Note that two NULL clks are treated as matching. + */ +bool clk_is_match(const struct clk *p, const struct clk *q) +{ + /* trivial case: identical struct clk's or both NULL */ + if (p == q) + return true; + + /* true if clk->core pointers match. Avoid derefing garbage */ + if (!IS_ERR_OR_NULL(p) && !IS_ERR_OR_NULL(q)) + if (p->core == q->core) + return true; + + return false; +} +EXPORT_SYMBOL_GPL(clk_is_match); + +/** * __clk_init - initialize the data structures in a struct clk * @dev: device initializing this clk, placeholder for now * @clk: clk being initialized diff --git a/drivers/clk/qcom/gcc-msm8960.c b/drivers/clk/qcom/gcc-msm8960.c index b0b562b9ce0e..e60feffc10a1 100644 --- a/drivers/clk/qcom/gcc-msm8960.c +++ b/drivers/clk/qcom/gcc-msm8960.c @@ -48,6 +48,17 @@ static struct clk_pll pll3 = { }, }; +static struct clk_regmap pll4_vote = { + .enable_reg = 0x34c0, + .enable_mask = BIT(4), + .hw.init = &(struct clk_init_data){ + .name = "pll4_vote", + .parent_names = (const char *[]){ "pll4" }, + .num_parents = 1, + .ops = &clk_pll_vote_ops, + }, +}; + static struct clk_pll pll8 = { .l_reg = 0x3144, .m_reg = 0x3148, @@ -3023,6 +3034,7 @@ static struct clk_branch rpm_msg_ram_h_clk = { static struct clk_regmap *gcc_msm8960_clks[] = { [PLL3] = &pll3.clkr, + [PLL4_VOTE] = &pll4_vote, [PLL8] = &pll8.clkr, [PLL8_VOTE] = &pll8_vote, [PLL14] = &pll14.clkr, @@ -3247,6 +3259,7 @@ static const struct qcom_reset_map gcc_msm8960_resets[] = { static struct clk_regmap *gcc_apq8064_clks[] = { [PLL3] = &pll3.clkr, + [PLL4_VOTE] = &pll4_vote, [PLL8] = &pll8.clkr, [PLL8_VOTE] = &pll8_vote, [PLL14] = &pll14.clkr, diff --git a/drivers/clk/qcom/lcc-ipq806x.c b/drivers/clk/qcom/lcc-ipq806x.c index 121ffde25dc3..c9ff27b4648b 100644 --- a/drivers/clk/qcom/lcc-ipq806x.c +++ b/drivers/clk/qcom/lcc-ipq806x.c @@ -462,7 +462,6 @@ static struct platform_driver lcc_ipq806x_driver = { .remove = lcc_ipq806x_remove, .driver = { .name = "lcc-ipq806x", - .owner = THIS_MODULE, .of_match_table = lcc_ipq806x_match_table, }, }; diff --git a/drivers/clk/qcom/lcc-msm8960.c b/drivers/clk/qcom/lcc-msm8960.c index a75a408cfccd..e2c863295f00 100644 --- a/drivers/clk/qcom/lcc-msm8960.c +++ b/drivers/clk/qcom/lcc-msm8960.c @@ -417,8 +417,8 @@ static struct clk_rcg slimbus_src = { .mnctr_en_bit = 8, .mnctr_reset_bit = 7, .mnctr_mode_shift = 5, - .n_val_shift = 16, - .m_val_shift = 16, + .n_val_shift = 24, + .m_val_shift = 8, .width = 8, }, .p = { @@ -547,7 +547,7 @@ static int lcc_msm8960_probe(struct platform_device *pdev) return PTR_ERR(regmap); /* Use the correct frequency plan depending on speed of PLL4 */ - val = regmap_read(regmap, 0x4, &val); + regmap_read(regmap, 0x4, &val); if (val == 0x12) { slimbus_src.freq_tbl = clk_tbl_aif_osr_492; mi2s_osr_src.freq_tbl = clk_tbl_aif_osr_492; @@ -574,7 +574,6 @@ static struct platform_driver lcc_msm8960_driver = { .remove = lcc_msm8960_remove, .driver = { .name = "lcc-msm8960", - .owner = THIS_MODULE, .of_match_table = lcc_msm8960_match_table, }, }; diff --git a/drivers/clk/ti/fapll.c b/drivers/clk/ti/fapll.c index 6ef89639a9f6..d21640634adf 100644 --- a/drivers/clk/ti/fapll.c +++ b/drivers/clk/ti/fapll.c @@ -84,7 +84,7 @@ static int ti_fapll_enable(struct clk_hw *hw) struct fapll_data *fd = to_fapll(hw); u32 v = readl_relaxed(fd->base); - v |= (1 << FAPLL_MAIN_PLLEN); + v |= FAPLL_MAIN_PLLEN; writel_relaxed(v, fd->base); return 0; @@ -95,7 +95,7 @@ static void ti_fapll_disable(struct clk_hw *hw) struct fapll_data *fd = to_fapll(hw); u32 v = readl_relaxed(fd->base); - v &= ~(1 << FAPLL_MAIN_PLLEN); + v &= ~FAPLL_MAIN_PLLEN; writel_relaxed(v, fd->base); } @@ -104,7 +104,7 @@ static int ti_fapll_is_enabled(struct clk_hw *hw) struct fapll_data *fd = to_fapll(hw); u32 v = readl_relaxed(fd->base); - return v & (1 << FAPLL_MAIN_PLLEN); + return v & FAPLL_MAIN_PLLEN; } static unsigned long ti_fapll_recalc_rate(struct clk_hw *hw, diff --git a/drivers/clocksource/time-efm32.c b/drivers/clocksource/time-efm32.c index bba62f9deefb..ec57ba2bbd87 100644 --- a/drivers/clocksource/time-efm32.c +++ b/drivers/clocksource/time-efm32.c @@ -225,12 +225,12 @@ static int __init efm32_clockevent_init(struct device_node *np) clock_event_ddata.base = base; clock_event_ddata.periodic_top = DIV_ROUND_CLOSEST(rate, 1024 * HZ); - setup_irq(irq, &efm32_clock_event_irq); - clockevents_config_and_register(&clock_event_ddata.evtdev, DIV_ROUND_CLOSEST(rate, 1024), 0xf, 0xffff); + setup_irq(irq, &efm32_clock_event_irq); + return 0; err_get_irq: diff --git a/drivers/clocksource/timer-sun5i.c b/drivers/clocksource/timer-sun5i.c index 02268448dc85..5dcbf90b8015 100644 --- a/drivers/clocksource/timer-sun5i.c +++ b/drivers/clocksource/timer-sun5i.c @@ -178,10 +178,6 @@ static void __init sun5i_timer_init(struct device_node *node) ticks_per_jiffy = DIV_ROUND_UP(rate, HZ); - ret = setup_irq(irq, &sun5i_timer_irq); - if (ret) - pr_warn("failed to setup irq %d\n", irq); - /* Enable timer0 interrupt */ val = readl(timer_base + TIMER_IRQ_EN_REG); writel(val | TIMER_IRQ_EN(0), timer_base + TIMER_IRQ_EN_REG); @@ -191,6 +187,10 @@ static void __init sun5i_timer_init(struct device_node *node) clockevents_config_and_register(&sun5i_clockevent, rate, TIMER_SYNC_TICKS, 0xffffffff); + + ret = setup_irq(irq, &sun5i_timer_irq); + if (ret) + pr_warn("failed to setup irq %d\n", irq); } CLOCKSOURCE_OF_DECLARE(sun5i_a13, "allwinner,sun5i-a13-hstimer", sun5i_timer_init); diff --git a/drivers/cpuidle/cpuidle-mvebu-v7.c b/drivers/cpuidle/cpuidle-mvebu-v7.c index 38e68618513a..980151f34707 100644 --- a/drivers/cpuidle/cpuidle-mvebu-v7.c +++ b/drivers/cpuidle/cpuidle-mvebu-v7.c @@ -37,11 +37,11 @@ static int mvebu_v7_enter_idle(struct cpuidle_device *dev, deepidle = true; ret = mvebu_v7_cpu_suspend(deepidle); + cpu_pm_exit(); + if (ret) return ret; - cpu_pm_exit(); - return index; } @@ -50,17 +50,17 @@ static struct cpuidle_driver armadaxp_idle_driver = { .states[0] = ARM_CPUIDLE_WFI_STATE, .states[1] = { .enter = mvebu_v7_enter_idle, - .exit_latency = 10, + .exit_latency = 100, .power_usage = 50, - .target_residency = 100, + .target_residency = 1000, .name = "MV CPU IDLE", .desc = "CPU power down", }, .states[2] = { .enter = mvebu_v7_enter_idle, - .exit_latency = 100, + .exit_latency = 1000, .power_usage = 5, - .target_residency = 1000, + .target_residency = 10000, .flags = MVEBU_V7_FLAG_DEEP_IDLE, .name = "MV CPU DEEP IDLE", .desc = "CPU and L2 Fabric power down", diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c index 4a5fd245014e..83aa55d6fa5d 100644 --- a/drivers/dma/amba-pl08x.c +++ b/drivers/dma/amba-pl08x.c @@ -97,6 +97,12 @@ #define DRIVER_NAME "pl08xdmac" +#define PL80X_DMA_BUSWIDTHS \ + BIT(DMA_SLAVE_BUSWIDTH_UNDEFINED) | \ + BIT(DMA_SLAVE_BUSWIDTH_1_BYTE) | \ + BIT(DMA_SLAVE_BUSWIDTH_2_BYTES) | \ + BIT(DMA_SLAVE_BUSWIDTH_4_BYTES) + static struct amba_driver pl08x_amba_driver; struct pl08x_driver_data; @@ -2070,6 +2076,10 @@ static int pl08x_probe(struct amba_device *adev, const struct amba_id *id) pl08x->memcpy.device_pause = pl08x_pause; pl08x->memcpy.device_resume = pl08x_resume; pl08x->memcpy.device_terminate_all = pl08x_terminate_all; + pl08x->memcpy.src_addr_widths = PL80X_DMA_BUSWIDTHS; + pl08x->memcpy.dst_addr_widths = PL80X_DMA_BUSWIDTHS; + pl08x->memcpy.directions = BIT(DMA_MEM_TO_MEM); + pl08x->memcpy.residue_granularity = DMA_RESIDUE_GRANULARITY_SEGMENT; /* Initialize slave engine */ dma_cap_set(DMA_SLAVE, pl08x->slave.cap_mask); @@ -2086,6 +2096,10 @@ static int pl08x_probe(struct amba_device *adev, const struct amba_id *id) pl08x->slave.device_pause = pl08x_pause; pl08x->slave.device_resume = pl08x_resume; pl08x->slave.device_terminate_all = pl08x_terminate_all; + pl08x->slave.src_addr_widths = PL80X_DMA_BUSWIDTHS; + pl08x->slave.dst_addr_widths = PL80X_DMA_BUSWIDTHS; + pl08x->slave.directions = BIT(DMA_DEV_TO_MEM) | BIT(DMA_MEM_TO_DEV); + pl08x->slave.residue_granularity = DMA_RESIDUE_GRANULARITY_SEGMENT; /* Get the platform data */ pl08x->pd = dev_get_platdata(&adev->dev); diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c index 1e1a4c567542..0b4fc6fb48ce 100644 --- a/drivers/dma/at_hdmac.c +++ b/drivers/dma/at_hdmac.c @@ -238,93 +238,126 @@ static void atc_dostart(struct at_dma_chan *atchan, struct at_desc *first) } /* - * atc_get_current_descriptors - - * locate the descriptor which equal to physical address in DSCR - * @atchan: the channel we want to start - * @dscr_addr: physical descriptor address in DSCR + * atc_get_desc_by_cookie - get the descriptor of a cookie + * @atchan: the DMA channel + * @cookie: the cookie to get the descriptor for */ -static struct at_desc *atc_get_current_descriptors(struct at_dma_chan *atchan, - u32 dscr_addr) +static struct at_desc *atc_get_desc_by_cookie(struct at_dma_chan *atchan, + dma_cookie_t cookie) { - struct at_desc *desc, *_desc, *child, *desc_cur = NULL; + struct at_desc *desc, *_desc; - list_for_each_entry_safe(desc, _desc, &atchan->active_list, desc_node) { - if (desc->lli.dscr == dscr_addr) { - desc_cur = desc; - break; - } + list_for_each_entry_safe(desc, _desc, &atchan->queue, desc_node) { + if (desc->txd.cookie == cookie) + return desc; + } - list_for_each_entry(child, &desc->tx_list, desc_node) { - if (child->lli.dscr == dscr_addr) { - desc_cur = child; - break; - } - } + list_for_each_entry_safe(desc, _desc, &atchan->active_list, desc_node) { + if (desc->txd.cookie == cookie) + return desc; } - return desc_cur; + return NULL; } -/* - * atc_get_bytes_left - - * Get the number of bytes residue in dma buffer, - * @chan: the channel we want to start +/** + * atc_calc_bytes_left - calculates the number of bytes left according to the + * value read from CTRLA. + * + * @current_len: the number of bytes left before reading CTRLA + * @ctrla: the value of CTRLA + * @desc: the descriptor containing the transfer width + */ +static inline int atc_calc_bytes_left(int current_len, u32 ctrla, + struct at_desc *desc) +{ + return current_len - ((ctrla & ATC_BTSIZE_MAX) << desc->tx_width); +} + +/** + * atc_calc_bytes_left_from_reg - calculates the number of bytes left according + * to the current value of CTRLA. + * + * @current_len: the number of bytes left before reading CTRLA + * @atchan: the channel to read CTRLA for + * @desc: the descriptor containing the transfer width + */ +static inline int atc_calc_bytes_left_from_reg(int current_len, + struct at_dma_chan *atchan, struct at_desc *desc) +{ + u32 ctrla = channel_readl(atchan, CTRLA); + + return atc_calc_bytes_left(current_len, ctrla, desc); +} + +/** + * atc_get_bytes_left - get the number of bytes residue for a cookie + * @chan: DMA channel + * @cookie: transaction identifier to check status of */ -static int atc_get_bytes_left(struct dma_chan *chan) +static int atc_get_bytes_left(struct dma_chan *chan, dma_cookie_t cookie) { struct at_dma_chan *atchan = to_at_dma_chan(chan); - struct at_dma *atdma = to_at_dma(chan->device); - int chan_id = atchan->chan_common.chan_id; struct at_desc *desc_first = atc_first_active(atchan); - struct at_desc *desc_cur; - int ret = 0, count = 0; + struct at_desc *desc; + int ret; + u32 ctrla, dscr; /* - * Initialize necessary values in the first time. - * remain_desc record remain desc length. + * If the cookie doesn't match to the currently running transfer then + * we can return the total length of the associated DMA transfer, + * because it is still queued. */ - if (atchan->remain_desc == 0) - /* First descriptor embedds the transaction length */ - atchan->remain_desc = desc_first->len; + desc = atc_get_desc_by_cookie(atchan, cookie); + if (desc == NULL) + return -EINVAL; + else if (desc != desc_first) + return desc->total_len; - /* - * This happens when current descriptor transfer complete. - * The residual buffer size should reduce current descriptor length. - */ - if (unlikely(test_bit(ATC_IS_BTC, &atchan->status))) { - clear_bit(ATC_IS_BTC, &atchan->status); - desc_cur = atc_get_current_descriptors(atchan, - channel_readl(atchan, DSCR)); - if (!desc_cur) { - ret = -EINVAL; - goto out; - } + /* cookie matches to the currently running transfer */ + ret = desc_first->total_len; - count = (desc_cur->lli.ctrla & ATC_BTSIZE_MAX) - << desc_first->tx_width; - if (atchan->remain_desc < count) { - ret = -EINVAL; - goto out; + if (desc_first->lli.dscr) { + /* hardware linked list transfer */ + + /* + * Calculate the residue by removing the length of the child + * descriptors already transferred from the total length. + * To get the current child descriptor we can use the value of + * the channel's DSCR register and compare it against the value + * of the hardware linked list structure of each child + * descriptor. + */ + + ctrla = channel_readl(atchan, CTRLA); + rmb(); /* ensure CTRLA is read before DSCR */ + dscr = channel_readl(atchan, DSCR); + + /* for the first descriptor we can be more accurate */ + if (desc_first->lli.dscr == dscr) + return atc_calc_bytes_left(ret, ctrla, desc_first); + + ret -= desc_first->len; + list_for_each_entry(desc, &desc_first->tx_list, desc_node) { + if (desc->lli.dscr == dscr) + break; + + ret -= desc->len; } - atchan->remain_desc -= count; - ret = atchan->remain_desc; - } else { /* - * Get residual bytes when current - * descriptor transfer in progress. + * For the last descriptor in the chain we can calculate + * the remaining bytes using the channel's register. + * Note that the transfer width of the first and last + * descriptor may differ. */ - count = (channel_readl(atchan, CTRLA) & ATC_BTSIZE_MAX) - << (desc_first->tx_width); - ret = atchan->remain_desc - count; + if (!desc->lli.dscr) + ret = atc_calc_bytes_left_from_reg(ret, atchan, desc); + } else { + /* single transfer */ + ret = atc_calc_bytes_left_from_reg(ret, atchan, desc_first); } - /* - * Check fifo empty. - */ - if (!(dma_readl(atdma, CHSR) & AT_DMA_EMPT(chan_id))) - atc_issue_pending(chan); -out: return ret; } @@ -539,8 +572,6 @@ static irqreturn_t at_dma_interrupt(int irq, void *dev_id) /* Give information to tasklet */ set_bit(ATC_IS_ERROR, &atchan->status); } - if (pending & AT_DMA_BTC(i)) - set_bit(ATC_IS_BTC, &atchan->status); tasklet_schedule(&atchan->tasklet); ret = IRQ_HANDLED; } @@ -653,14 +684,18 @@ atc_prep_dma_memcpy(struct dma_chan *chan, dma_addr_t dest, dma_addr_t src, desc->lli.ctrlb = ctrlb; desc->txd.cookie = 0; + desc->len = xfer_count << src_width; atc_desc_chain(&first, &prev, desc); } /* First descriptor of the chain embedds additional information */ first->txd.cookie = -EBUSY; - first->len = len; + first->total_len = len; + + /* set transfer width for the calculation of the residue */ first->tx_width = src_width; + prev->tx_width = src_width; /* set end-of-link to the last link descriptor of list*/ set_desc_eol(desc); @@ -752,6 +787,7 @@ atc_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl, | ATC_SRC_WIDTH(mem_width) | len >> mem_width; desc->lli.ctrlb = ctrlb; + desc->len = len; atc_desc_chain(&first, &prev, desc); total_len += len; @@ -792,6 +828,7 @@ atc_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl, | ATC_DST_WIDTH(mem_width) | len >> reg_width; desc->lli.ctrlb = ctrlb; + desc->len = len; atc_desc_chain(&first, &prev, desc); total_len += len; @@ -806,8 +843,11 @@ atc_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl, /* First descriptor of the chain embedds additional information */ first->txd.cookie = -EBUSY; - first->len = total_len; + first->total_len = total_len; + + /* set transfer width for the calculation of the residue */ first->tx_width = reg_width; + prev->tx_width = reg_width; /* first link descriptor of list is responsible of flags */ first->txd.flags = flags; /* client is in control of this ack */ @@ -872,6 +912,7 @@ atc_dma_cyclic_fill_desc(struct dma_chan *chan, struct at_desc *desc, | ATC_FC_MEM2PER | ATC_SIF(atchan->mem_if) | ATC_DIF(atchan->per_if); + desc->len = period_len; break; case DMA_DEV_TO_MEM: @@ -883,6 +924,7 @@ atc_dma_cyclic_fill_desc(struct dma_chan *chan, struct at_desc *desc, | ATC_FC_PER2MEM | ATC_SIF(atchan->per_if) | ATC_DIF(atchan->mem_if); + desc->len = period_len; break; default: @@ -964,7 +1006,7 @@ atc_prep_dma_cyclic(struct dma_chan *chan, dma_addr_t buf_addr, size_t buf_len, /* First descriptor of the chain embedds additional information */ first->txd.cookie = -EBUSY; - first->len = buf_len; + first->total_len = buf_len; first->tx_width = reg_width; return &first->txd; @@ -1118,7 +1160,7 @@ atc_tx_status(struct dma_chan *chan, spin_lock_irqsave(&atchan->lock, flags); /* Get number of bytes left in the active transactions */ - bytes = atc_get_bytes_left(chan); + bytes = atc_get_bytes_left(chan, cookie); spin_unlock_irqrestore(&atchan->lock, flags); @@ -1214,7 +1256,6 @@ static int atc_alloc_chan_resources(struct dma_chan *chan) spin_lock_irqsave(&atchan->lock, flags); atchan->descs_allocated = i; - atchan->remain_desc = 0; list_splice(&tmp_list, &atchan->free_list); dma_cookie_init(chan); spin_unlock_irqrestore(&atchan->lock, flags); @@ -1257,7 +1298,6 @@ static void atc_free_chan_resources(struct dma_chan *chan) list_splice_init(&atchan->free_list, &list); atchan->descs_allocated = 0; atchan->status = 0; - atchan->remain_desc = 0; dev_vdbg(chan2dev(chan), "free_chan_resources: done\n"); } diff --git a/drivers/dma/at_hdmac_regs.h b/drivers/dma/at_hdmac_regs.h index d6bba6c636c2..2727ca560572 100644 --- a/drivers/dma/at_hdmac_regs.h +++ b/drivers/dma/at_hdmac_regs.h @@ -181,8 +181,9 @@ struct at_lli { * @at_lli: hardware lli structure * @txd: support for the async_tx api * @desc_node: node on the channed descriptors list - * @len: total transaction bytecount + * @len: descriptor byte count * @tx_width: transfer width + * @total_len: total transaction byte count */ struct at_desc { /* FIRST values the hardware uses */ @@ -194,6 +195,7 @@ struct at_desc { struct list_head desc_node; size_t len; u32 tx_width; + size_t total_len; }; static inline struct at_desc * @@ -213,7 +215,6 @@ txd_to_at_desc(struct dma_async_tx_descriptor *txd) enum atc_status { ATC_IS_ERROR = 0, ATC_IS_PAUSED = 1, - ATC_IS_BTC = 2, ATC_IS_CYCLIC = 24, }; @@ -231,7 +232,6 @@ enum atc_status { * @save_cfg: configuration register that is saved on suspend/resume cycle * @save_dscr: for cyclic operations, preserve next descriptor address in * the cyclic list on suspend/resume cycle - * @remain_desc: to save remain desc length * @dma_sconfig: configuration for slave transfers, passed via * .device_config * @lock: serializes enqueue/dequeue operations to descriptors lists @@ -251,7 +251,6 @@ struct at_dma_chan { struct tasklet_struct tasklet; u32 save_cfg; u32 save_dscr; - u32 remain_desc; struct dma_slave_config dma_sconfig; spinlock_t lock; diff --git a/drivers/dma/dw/platform.c b/drivers/dma/dw/platform.c index 6565a361e7e5..b2c3ae071429 100644 --- a/drivers/dma/dw/platform.c +++ b/drivers/dma/dw/platform.c @@ -26,6 +26,8 @@ #include "internal.h" +#define DRV_NAME "dw_dmac" + static struct dma_chan *dw_dma_of_xlate(struct of_phandle_args *dma_spec, struct of_dma *ofdma) { @@ -284,7 +286,7 @@ static struct platform_driver dw_driver = { .remove = dw_remove, .shutdown = dw_shutdown, .driver = { - .name = "dw_dmac", + .name = DRV_NAME, .pm = &dw_dev_pm_ops, .of_match_table = of_match_ptr(dw_dma_of_id_table), .acpi_match_table = ACPI_PTR(dw_dma_acpi_id_table), @@ -305,3 +307,4 @@ module_exit(dw_exit); MODULE_LICENSE("GPL v2"); MODULE_DESCRIPTION("Synopsys DesignWare DMA Controller platform driver"); +MODULE_ALIAS("platform:" DRV_NAME); diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c index 18c0a131e4e4..66a0efb9651d 100644 --- a/drivers/dma/imx-sdma.c +++ b/drivers/dma/imx-sdma.c @@ -531,6 +531,10 @@ static int sdma_run_channel0(struct sdma_engine *sdma) dev_err(sdma->dev, "Timeout waiting for CH0 ready\n"); } + /* Set bits of CONFIG register with dynamic context switching */ + if (readl(sdma->regs + SDMA_H_CONFIG) == 0) + writel_relaxed(SDMA_H_CONFIG_CSM, sdma->regs + SDMA_H_CONFIG); + return ret ? 0 : -ETIMEDOUT; } @@ -1394,9 +1398,6 @@ static int sdma_init(struct sdma_engine *sdma) writel_relaxed(ccb_phys, sdma->regs + SDMA_H_C0PTR); - /* Set bits of CONFIG register with given context switching mode */ - writel_relaxed(SDMA_H_CONFIG_CSM, sdma->regs + SDMA_H_CONFIG); - /* Initializes channel's priorities */ sdma_set_channel_priority(&sdma->channel[0], 7); diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c index 910ff8ab9c9c..d8135adb2238 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c @@ -645,6 +645,7 @@ static int create_sdma_queue_nocpsch(struct device_queue_manager *dqm, pr_debug(" sdma queue id: %d\n", q->properties.sdma_queue_id); pr_debug(" sdma engine id: %d\n", q->properties.sdma_engine_id); + init_sdma_vm(dqm, q, qpd); retval = mqd->init_mqd(mqd, &q->mqd, &q->mqd_mem_obj, &q->gart_mqd_addr, &q->properties); if (retval != 0) { @@ -652,7 +653,14 @@ static int create_sdma_queue_nocpsch(struct device_queue_manager *dqm, return retval; } - init_sdma_vm(dqm, q, qpd); + retval = mqd->load_mqd(mqd, q->mqd, 0, + 0, NULL); + if (retval != 0) { + deallocate_sdma_queue(dqm, q->sdma_id); + mqd->uninit_mqd(mqd, q->mqd, q->mqd_mem_obj); + return retval; + } + return 0; } diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c b/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c index e415a2a9207e..c7d298e62c96 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c @@ -44,7 +44,7 @@ static bool initialize(struct kernel_queue *kq, struct kfd_dev *dev, BUG_ON(!kq || !dev); BUG_ON(type != KFD_QUEUE_TYPE_DIQ && type != KFD_QUEUE_TYPE_HIQ); - pr_debug("kfd: In func %s initializing queue type %d size %d\n", + pr_debug("amdkfd: In func %s initializing queue type %d size %d\n", __func__, KFD_QUEUE_TYPE_HIQ, queue_size); nop.opcode = IT_NOP; @@ -69,12 +69,16 @@ static bool initialize(struct kernel_queue *kq, struct kfd_dev *dev, prop.doorbell_ptr = kfd_get_kernel_doorbell(dev, &prop.doorbell_off); - if (prop.doorbell_ptr == NULL) + if (prop.doorbell_ptr == NULL) { + pr_err("amdkfd: error init doorbell"); goto err_get_kernel_doorbell; + } retval = kfd_gtt_sa_allocate(dev, queue_size, &kq->pq); - if (retval != 0) + if (retval != 0) { + pr_err("amdkfd: error init pq queues size (%d)\n", queue_size); goto err_pq_allocate_vidmem; + } kq->pq_kernel_addr = kq->pq->cpu_ptr; kq->pq_gpu_addr = kq->pq->gpu_addr; @@ -165,10 +169,8 @@ err_rptr_allocate_vidmem: err_eop_allocate_vidmem: kfd_gtt_sa_free(dev, kq->pq); err_pq_allocate_vidmem: - pr_err("kfd: error init pq\n"); kfd_release_kernel_doorbell(dev, prop.doorbell_ptr); err_get_kernel_doorbell: - pr_err("kfd: error init doorbell"); return false; } @@ -187,6 +189,8 @@ static void uninitialize(struct kernel_queue *kq) else if (kq->queue->properties.type == KFD_QUEUE_TYPE_DIQ) kfd_gtt_sa_free(kq->dev, kq->fence_mem_obj); + kq->mqd->uninit_mqd(kq->mqd, kq->queue->mqd, kq->queue->mqd_mem_obj); + kfd_gtt_sa_free(kq->dev, kq->rptr_mem); kfd_gtt_sa_free(kq->dev, kq->wptr_mem); kq->ops_asic_specific.uninitialize(kq); @@ -211,7 +215,7 @@ static int acquire_packet_buffer(struct kernel_queue *kq, queue_address = (unsigned int *)kq->pq_kernel_addr; queue_size_dwords = kq->queue->properties.queue_size / sizeof(uint32_t); - pr_debug("kfd: In func %s\nrptr: %d\nwptr: %d\nqueue_address 0x%p\n", + pr_debug("amdkfd: In func %s\nrptr: %d\nwptr: %d\nqueue_address 0x%p\n", __func__, rptr, wptr, queue_address); available_size = (rptr - 1 - wptr + queue_size_dwords) % @@ -296,7 +300,7 @@ struct kernel_queue *kernel_queue_init(struct kfd_dev *dev, } if (kq->ops.initialize(kq, dev, type, KFD_KERNEL_QUEUE_SIZE) == false) { - pr_err("kfd: failed to init kernel queue\n"); + pr_err("amdkfd: failed to init kernel queue\n"); kfree(kq); return NULL; } @@ -319,7 +323,7 @@ static __attribute__((unused)) void test_kq(struct kfd_dev *dev) BUG_ON(!dev); - pr_err("kfd: starting kernel queue test\n"); + pr_err("amdkfd: starting kernel queue test\n"); kq = kernel_queue_init(dev, KFD_QUEUE_TYPE_HIQ); BUG_ON(!kq); @@ -330,7 +334,7 @@ static __attribute__((unused)) void test_kq(struct kfd_dev *dev) buffer[i] = kq->nop_packet; kq->ops.submit_packet(kq); - pr_err("kfd: ending kernel queue test\n"); + pr_err("amdkfd: ending kernel queue test\n"); } diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index 6b6b07ff720b..f6d04c7b5115 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -43,9 +43,10 @@ #include "drm_crtc_internal.h" #include "drm_internal.h" -static struct drm_framebuffer *add_framebuffer_internal(struct drm_device *dev, - struct drm_mode_fb_cmd2 *r, - struct drm_file *file_priv); +static struct drm_framebuffer * +internal_framebuffer_create(struct drm_device *dev, + struct drm_mode_fb_cmd2 *r, + struct drm_file *file_priv); /* Avoid boilerplate. I'm tired of typing. */ #define DRM_ENUM_NAME_FN(fnname, list) \ @@ -2908,13 +2909,11 @@ static int drm_mode_cursor_universal(struct drm_crtc *crtc, */ if (req->flags & DRM_MODE_CURSOR_BO) { if (req->handle) { - fb = add_framebuffer_internal(dev, &fbreq, file_priv); + fb = internal_framebuffer_create(dev, &fbreq, file_priv); if (IS_ERR(fb)) { DRM_DEBUG_KMS("failed to wrap cursor buffer in drm framebuffer\n"); return PTR_ERR(fb); } - - drm_framebuffer_reference(fb); } else { fb = NULL; } @@ -3267,9 +3266,10 @@ static int framebuffer_check(const struct drm_mode_fb_cmd2 *r) return 0; } -static struct drm_framebuffer *add_framebuffer_internal(struct drm_device *dev, - struct drm_mode_fb_cmd2 *r, - struct drm_file *file_priv) +static struct drm_framebuffer * +internal_framebuffer_create(struct drm_device *dev, + struct drm_mode_fb_cmd2 *r, + struct drm_file *file_priv) { struct drm_mode_config *config = &dev->mode_config; struct drm_framebuffer *fb; @@ -3301,12 +3301,6 @@ static struct drm_framebuffer *add_framebuffer_internal(struct drm_device *dev, return fb; } - mutex_lock(&file_priv->fbs_lock); - r->fb_id = fb->base.id; - list_add(&fb->filp_head, &file_priv->fbs); - DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id); - mutex_unlock(&file_priv->fbs_lock); - return fb; } @@ -3328,15 +3322,24 @@ static struct drm_framebuffer *add_framebuffer_internal(struct drm_device *dev, int drm_mode_addfb2(struct drm_device *dev, void *data, struct drm_file *file_priv) { + struct drm_mode_fb_cmd2 *r = data; struct drm_framebuffer *fb; if (!drm_core_check_feature(dev, DRIVER_MODESET)) return -EINVAL; - fb = add_framebuffer_internal(dev, data, file_priv); + fb = internal_framebuffer_create(dev, r, file_priv); if (IS_ERR(fb)) return PTR_ERR(fb); + /* Transfer ownership to the filp for reaping on close */ + + DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id); + mutex_lock(&file_priv->fbs_lock); + r->fb_id = fb->base.id; + list_add(&fb->filp_head, &file_priv->fbs); + mutex_unlock(&file_priv->fbs_lock); + return 0; } diff --git a/drivers/gpu/drm/drm_dp_mst_topology.c b/drivers/gpu/drm/drm_dp_mst_topology.c index 9a5b68717ec8..379ab4555756 100644 --- a/drivers/gpu/drm/drm_dp_mst_topology.c +++ b/drivers/gpu/drm/drm_dp_mst_topology.c @@ -733,10 +733,14 @@ static bool check_txmsg_state(struct drm_dp_mst_topology_mgr *mgr, struct drm_dp_sideband_msg_tx *txmsg) { bool ret; - mutex_lock(&mgr->qlock); + + /* + * All updates to txmsg->state are protected by mgr->qlock, and the two + * cases we check here are terminal states. For those the barriers + * provided by the wake_up/wait_event pair are enough. + */ ret = (txmsg->state == DRM_DP_SIDEBAND_TX_RX || txmsg->state == DRM_DP_SIDEBAND_TX_TIMEOUT); - mutex_unlock(&mgr->qlock); return ret; } @@ -1363,12 +1367,13 @@ static int process_single_tx_qlock(struct drm_dp_mst_topology_mgr *mgr, return 0; } -/* must be called holding qlock */ static void process_single_down_tx_qlock(struct drm_dp_mst_topology_mgr *mgr) { struct drm_dp_sideband_msg_tx *txmsg; int ret; + WARN_ON(!mutex_is_locked(&mgr->qlock)); + /* construct a chunk from the first msg in the tx_msg queue */ if (list_empty(&mgr->tx_msg_downq)) { mgr->tx_down_in_progress = false; diff --git a/drivers/gpu/drm/drm_mm.c b/drivers/gpu/drm/drm_mm.c index 7fc6f8bd4821..1134526286c8 100644 --- a/drivers/gpu/drm/drm_mm.c +++ b/drivers/gpu/drm/drm_mm.c @@ -403,7 +403,7 @@ static int check_free_hole(u64 start, u64 end, u64 size, unsigned alignment) unsigned rem; rem = do_div(tmp, alignment); - if (tmp) + if (rem) start += alignment - rem; } diff --git a/drivers/gpu/drm/exynos/Kconfig b/drivers/gpu/drm/exynos/Kconfig index a5e74612100e..0a6780367d28 100644 --- a/drivers/gpu/drm/exynos/Kconfig +++ b/drivers/gpu/drm/exynos/Kconfig @@ -50,7 +50,7 @@ config DRM_EXYNOS_DSI config DRM_EXYNOS_DP bool "EXYNOS DRM DP driver support" - depends on (DRM_EXYNOS_FIMD || DRM_EXYNOS7DECON) && ARCH_EXYNOS && (DRM_PTN3460=n || DRM_PTN3460=y || DRM_PTN3460=DRM_EXYNOS) + depends on (DRM_EXYNOS_FIMD || DRM_EXYNOS7_DECON) && ARCH_EXYNOS && (DRM_PTN3460=n || DRM_PTN3460=y || DRM_PTN3460=DRM_EXYNOS) default DRM_EXYNOS select DRM_PANEL help diff --git a/drivers/gpu/drm/exynos/exynos7_drm_decon.c b/drivers/gpu/drm/exynos/exynos7_drm_decon.c index 63f02e2380ae..970046199608 100644 --- a/drivers/gpu/drm/exynos/exynos7_drm_decon.c +++ b/drivers/gpu/drm/exynos/exynos7_drm_decon.c @@ -888,8 +888,8 @@ static int decon_probe(struct platform_device *pdev) of_node_put(i80_if_timings); ctx->regs = of_iomap(dev->of_node, 0); - if (IS_ERR(ctx->regs)) { - ret = PTR_ERR(ctx->regs); + if (!ctx->regs) { + ret = -ENOMEM; goto err_del_component; } diff --git a/drivers/gpu/drm/exynos/exynos_drm_connector.c b/drivers/gpu/drm/exynos/exynos_drm_connector.c deleted file mode 100644 index ba9b3d5ed672..000000000000 --- a/drivers/gpu/drm/exynos/exynos_drm_connector.c +++ /dev/null @@ -1,245 +0,0 @@ -/* - * Copyright (c) 2011 Samsung Electronics Co., Ltd. - * Authors: - * Inki Dae <inki.dae@samsung.com> - * Joonyoung Shim <jy0922.shim@samsung.com> - * Seung-Woo Kim <sw0312.kim@samsung.com> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - */ - -#include <drm/drmP.h> -#include <drm/drm_crtc_helper.h> - -#include <drm/exynos_drm.h> -#include "exynos_drm_drv.h" -#include "exynos_drm_encoder.h" -#include "exynos_drm_connector.h" - -#define to_exynos_connector(x) container_of(x, struct exynos_drm_connector,\ - drm_connector) - -struct exynos_drm_connector { - struct drm_connector drm_connector; - uint32_t encoder_id; - struct exynos_drm_display *display; -}; - -static int exynos_drm_connector_get_modes(struct drm_connector *connector) -{ - struct exynos_drm_connector *exynos_connector = - to_exynos_connector(connector); - struct exynos_drm_display *display = exynos_connector->display; - struct edid *edid = NULL; - unsigned int count = 0; - int ret; - - /* - * if get_edid() exists then get_edid() callback of hdmi side - * is called to get edid data through i2c interface else - * get timing from the FIMD driver(display controller). - * - * P.S. in case of lcd panel, count is always 1 if success - * because lcd panel has only one mode. - */ - if (display->ops->get_edid) { - edid = display->ops->get_edid(display, connector); - if (IS_ERR_OR_NULL(edid)) { - ret = PTR_ERR(edid); - edid = NULL; - DRM_ERROR("Panel operation get_edid failed %d\n", ret); - goto out; - } - - count = drm_add_edid_modes(connector, edid); - if (!count) { - DRM_ERROR("Add edid modes failed %d\n", count); - goto out; - } - - drm_mode_connector_update_edid_property(connector, edid); - } else { - struct exynos_drm_panel_info *panel; - struct drm_display_mode *mode = drm_mode_create(connector->dev); - if (!mode) { - DRM_ERROR("failed to create a new display mode.\n"); - return 0; - } - - if (display->ops->get_panel) - panel = display->ops->get_panel(display); - else { - drm_mode_destroy(connector->dev, mode); - return 0; - } - - drm_display_mode_from_videomode(&panel->vm, mode); - mode->width_mm = panel->width_mm; - mode->height_mm = panel->height_mm; - connector->display_info.width_mm = mode->width_mm; - connector->display_info.height_mm = mode->height_mm; - - mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED; - drm_mode_set_name(mode); - drm_mode_probed_add(connector, mode); - - count = 1; - } - -out: - kfree(edid); - return count; -} - -static int exynos_drm_connector_mode_valid(struct drm_connector *connector, - struct drm_display_mode *mode) -{ - struct exynos_drm_connector *exynos_connector = - to_exynos_connector(connector); - struct exynos_drm_display *display = exynos_connector->display; - int ret = MODE_BAD; - - DRM_DEBUG_KMS("%s\n", __FILE__); - - if (display->ops->check_mode) - if (!display->ops->check_mode(display, mode)) - ret = MODE_OK; - - return ret; -} - -static struct drm_encoder *exynos_drm_best_encoder( - struct drm_connector *connector) -{ - struct drm_device *dev = connector->dev; - struct exynos_drm_connector *exynos_connector = - to_exynos_connector(connector); - return drm_encoder_find(dev, exynos_connector->encoder_id); -} - -static struct drm_connector_helper_funcs exynos_connector_helper_funcs = { - .get_modes = exynos_drm_connector_get_modes, - .mode_valid = exynos_drm_connector_mode_valid, - .best_encoder = exynos_drm_best_encoder, -}; - -static int exynos_drm_connector_fill_modes(struct drm_connector *connector, - unsigned int max_width, unsigned int max_height) -{ - struct exynos_drm_connector *exynos_connector = - to_exynos_connector(connector); - struct exynos_drm_display *display = exynos_connector->display; - unsigned int width, height; - - width = max_width; - height = max_height; - - /* - * if specific driver want to find desired_mode using maxmum - * resolution then get max width and height from that driver. - */ - if (display->ops->get_max_resol) - display->ops->get_max_resol(display, &width, &height); - - return drm_helper_probe_single_connector_modes(connector, width, - height); -} - -/* get detection status of display device. */ -static enum drm_connector_status -exynos_drm_connector_detect(struct drm_connector *connector, bool force) -{ - struct exynos_drm_connector *exynos_connector = - to_exynos_connector(connector); - struct exynos_drm_display *display = exynos_connector->display; - enum drm_connector_status status = connector_status_disconnected; - - if (display->ops->is_connected) { - if (display->ops->is_connected(display)) - status = connector_status_connected; - else - status = connector_status_disconnected; - } - - return status; -} - -static void exynos_drm_connector_destroy(struct drm_connector *connector) -{ - struct exynos_drm_connector *exynos_connector = - to_exynos_connector(connector); - - drm_connector_unregister(connector); - drm_connector_cleanup(connector); - kfree(exynos_connector); -} - -static struct drm_connector_funcs exynos_connector_funcs = { - .dpms = drm_helper_connector_dpms, - .fill_modes = exynos_drm_connector_fill_modes, - .detect = exynos_drm_connector_detect, - .destroy = exynos_drm_connector_destroy, -}; - -struct drm_connector *exynos_drm_connector_create(struct drm_device *dev, - struct drm_encoder *encoder) -{ - struct exynos_drm_connector *exynos_connector; - struct exynos_drm_display *display = exynos_drm_get_display(encoder); - struct drm_connector *connector; - int type; - int err; - - exynos_connector = kzalloc(sizeof(*exynos_connector), GFP_KERNEL); - if (!exynos_connector) - return NULL; - - connector = &exynos_connector->drm_connector; - - switch (display->type) { - case EXYNOS_DISPLAY_TYPE_HDMI: - type = DRM_MODE_CONNECTOR_HDMIA; - connector->interlace_allowed = true; - connector->polled = DRM_CONNECTOR_POLL_HPD; - break; - case EXYNOS_DISPLAY_TYPE_VIDI: - type = DRM_MODE_CONNECTOR_VIRTUAL; - connector->polled = DRM_CONNECTOR_POLL_HPD; - break; - default: - type = DRM_MODE_CONNECTOR_Unknown; - break; - } - - drm_connector_init(dev, connector, &exynos_connector_funcs, type); - drm_connector_helper_add(connector, &exynos_connector_helper_funcs); - - err = drm_connector_register(connector); - if (err) - goto err_connector; - - exynos_connector->encoder_id = encoder->base.id; - exynos_connector->display = display; - connector->dpms = DRM_MODE_DPMS_OFF; - connector->encoder = encoder; - - err = drm_mode_connector_attach_encoder(connector, encoder); - if (err) { - DRM_ERROR("failed to attach a connector to a encoder\n"); - goto err_sysfs; - } - - DRM_DEBUG_KMS("connector has been created\n"); - - return connector; - -err_sysfs: - drm_connector_unregister(connector); -err_connector: - drm_connector_cleanup(connector); - kfree(exynos_connector); - return NULL; -} diff --git a/drivers/gpu/drm/exynos/exynos_drm_connector.h b/drivers/gpu/drm/exynos/exynos_drm_connector.h deleted file mode 100644 index 4eb20d78379a..000000000000 --- a/drivers/gpu/drm/exynos/exynos_drm_connector.h +++ /dev/null @@ -1,20 +0,0 @@ -/* - * Copyright (c) 2011 Samsung Electronics Co., Ltd. - * Authors: - * Inki Dae <inki.dae@samsung.com> - * Joonyoung Shim <jy0922.shim@samsung.com> - * Seung-Woo Kim <sw0312.kim@samsung.com> - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - */ - -#ifndef _EXYNOS_DRM_CONNECTOR_H_ -#define _EXYNOS_DRM_CONNECTOR_H_ - -struct drm_connector *exynos_drm_connector_create(struct drm_device *dev, - struct drm_encoder *encoder); - -#endif diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimd.c b/drivers/gpu/drm/exynos/exynos_drm_fimd.c index 925fc69af1a0..c300e22da8ac 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c @@ -284,14 +284,9 @@ static void fimd_clear_channel(struct fimd_context *ctx) } } -static int fimd_ctx_initialize(struct fimd_context *ctx, +static int fimd_iommu_attach_devices(struct fimd_context *ctx, struct drm_device *drm_dev) { - struct exynos_drm_private *priv; - priv = drm_dev->dev_private; - - ctx->drm_dev = drm_dev; - ctx->pipe = priv->pipe++; /* attach this sub driver to iommu mapping if supported. */ if (is_drm_iommu_supported(ctx->drm_dev)) { @@ -313,7 +308,7 @@ static int fimd_ctx_initialize(struct fimd_context *ctx, return 0; } -static void fimd_ctx_remove(struct fimd_context *ctx) +static void fimd_iommu_detach_devices(struct fimd_context *ctx) { /* detach this sub driver from iommu mapping if supported. */ if (is_drm_iommu_supported(ctx->drm_dev)) @@ -1056,25 +1051,23 @@ static int fimd_bind(struct device *dev, struct device *master, void *data) { struct fimd_context *ctx = dev_get_drvdata(dev); struct drm_device *drm_dev = data; + struct exynos_drm_private *priv = drm_dev->dev_private; int ret; - ret = fimd_ctx_initialize(ctx, drm_dev); - if (ret) { - DRM_ERROR("fimd_ctx_initialize failed.\n"); - return ret; - } + ctx->drm_dev = drm_dev; + ctx->pipe = priv->pipe++; ctx->crtc = exynos_drm_crtc_create(drm_dev, ctx->pipe, EXYNOS_DISPLAY_TYPE_LCD, &fimd_crtc_ops, ctx); - if (IS_ERR(ctx->crtc)) { - fimd_ctx_remove(ctx); - return PTR_ERR(ctx->crtc); - } if (ctx->display) exynos_drm_create_enc_conn(drm_dev, ctx->display); + ret = fimd_iommu_attach_devices(ctx, drm_dev); + if (ret) + return ret; + return 0; } @@ -1086,10 +1079,10 @@ static void fimd_unbind(struct device *dev, struct device *master, fimd_dpms(ctx->crtc, DRM_MODE_DPMS_OFF); + fimd_iommu_detach_devices(ctx); + if (ctx->display) exynos_dpi_remove(ctx->display); - - fimd_ctx_remove(ctx); } static const struct component_ops fimd_component_ops = { diff --git a/drivers/gpu/drm/exynos/exynos_drm_plane.c b/drivers/gpu/drm/exynos/exynos_drm_plane.c index a5616872eee7..8ad5b7294eb4 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_plane.c +++ b/drivers/gpu/drm/exynos/exynos_drm_plane.c @@ -175,7 +175,7 @@ static int exynos_disable_plane(struct drm_plane *plane) struct exynos_drm_plane *exynos_plane = to_exynos_plane(plane); struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(plane->crtc); - if (exynos_crtc->ops->win_disable) + if (exynos_crtc && exynos_crtc->ops->win_disable) exynos_crtc->ops->win_disable(exynos_crtc, exynos_plane->zpos); diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index e5daad5f75fb..5b205863b659 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -2936,9 +2936,9 @@ i915_gem_wait_ioctl(struct drm_device *dev, void *data, struct drm_file *file) req = obj->last_read_req; /* Do this after OLR check to make sure we make forward progress polling - * on this IOCTL with a timeout <=0 (like busy ioctl) + * on this IOCTL with a timeout == 0 (like busy ioctl) */ - if (args->timeout_ns <= 0) { + if (args->timeout_ns == 0) { ret = -ETIME; goto out; } @@ -2948,7 +2948,8 @@ i915_gem_wait_ioctl(struct drm_device *dev, void *data, struct drm_file *file) i915_gem_request_reference(req); mutex_unlock(&dev->struct_mutex); - ret = __i915_wait_request(req, reset_counter, true, &args->timeout_ns, + ret = __i915_wait_request(req, reset_counter, true, + args->timeout_ns > 0 ? &args->timeout_ns : NULL, file->driver_priv); mutex_lock(&dev->struct_mutex); i915_gem_request_unreference(req); @@ -4792,6 +4793,9 @@ i915_gem_init_hw(struct drm_device *dev) if (INTEL_INFO(dev)->gen < 6 && !intel_enable_gtt()) return -EIO; + /* Double layer security blanket, see i915_gem_init() */ + intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL); + if (dev_priv->ellc_size) I915_WRITE(HSW_IDICR, I915_READ(HSW_IDICR) | IDIHASHMSK(0xf)); @@ -4824,7 +4828,7 @@ i915_gem_init_hw(struct drm_device *dev) for_each_ring(ring, dev_priv, i) { ret = ring->init_hw(ring); if (ret) - return ret; + goto out; } for (i = 0; i < NUM_L3_SLICES(dev); i++) @@ -4841,9 +4845,11 @@ i915_gem_init_hw(struct drm_device *dev) DRM_ERROR("Context enable failed %d\n", ret); i915_gem_cleanup_ringbuffer(dev); - return ret; + goto out; } +out: + intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL); return ret; } @@ -4877,6 +4883,14 @@ int i915_gem_init(struct drm_device *dev) dev_priv->gt.stop_ring = intel_logical_ring_stop; } + /* This is just a security blanket to placate dragons. + * On some systems, we very sporadically observe that the first TLBs + * used by the CS may be stale, despite us poking the TLB reset. If + * we hold the forcewake during initialisation these problems + * just magically go away. + */ + intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL); + ret = i915_gem_init_userptr(dev); if (ret) goto out_unlock; @@ -4903,6 +4917,7 @@ int i915_gem_init(struct drm_device *dev) } out_unlock: + intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL); mutex_unlock(&dev->struct_mutex); return ret; diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index e730789b53b7..6d22128d97b1 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -37,6 +37,7 @@ #include <drm/i915_drm.h> #include "i915_drv.h" #include "i915_trace.h" +#include <drm/drm_atomic.h> #include <drm/drm_atomic_helper.h> #include <drm/drm_dp_helper.h> #include <drm/drm_crtc_helper.h> @@ -2416,6 +2417,14 @@ out_unref_obj: return false; } +/* Update plane->state->fb to match plane->fb after driver-internal updates */ +static void +update_state_fb(struct drm_plane *plane) +{ + if (plane->fb != plane->state->fb) + drm_atomic_set_fb_for_plane(plane->state, plane->fb); +} + static void intel_find_plane_obj(struct intel_crtc *intel_crtc, struct intel_initial_plane_config *plane_config) @@ -2462,6 +2471,8 @@ intel_find_plane_obj(struct intel_crtc *intel_crtc, break; } } + + update_state_fb(intel_crtc->base.primary); } static void i9xx_update_primary_plane(struct drm_crtc *crtc, @@ -6602,6 +6613,10 @@ i9xx_get_initial_plane_config(struct intel_crtc *crtc, struct drm_framebuffer *fb; struct intel_framebuffer *intel_fb; + val = I915_READ(DSPCNTR(plane)); + if (!(val & DISPLAY_PLANE_ENABLE)) + return; + intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL); if (!intel_fb) { DRM_DEBUG_KMS("failed to alloc fb\n"); @@ -6610,8 +6625,6 @@ i9xx_get_initial_plane_config(struct intel_crtc *crtc, fb = &intel_fb->base; - val = I915_READ(DSPCNTR(plane)); - if (INTEL_INFO(dev)->gen >= 4) if (val & DISPPLANE_TILED) plane_config->tiling = I915_TILING_X; @@ -6650,6 +6663,7 @@ i9xx_get_initial_plane_config(struct intel_crtc *crtc, plane_config->size); crtc->base.primary->fb = fb; + update_state_fb(crtc->base.primary); } static void chv_crtc_clock_get(struct intel_crtc *crtc, @@ -7643,6 +7657,9 @@ skylake_get_initial_plane_config(struct intel_crtc *crtc, fb = &intel_fb->base; val = I915_READ(PLANE_CTL(pipe, 0)); + if (!(val & PLANE_CTL_ENABLE)) + goto error; + if (val & PLANE_CTL_TILED_MASK) plane_config->tiling = I915_TILING_X; @@ -7687,6 +7704,7 @@ skylake_get_initial_plane_config(struct intel_crtc *crtc, plane_config->size); crtc->base.primary->fb = fb; + update_state_fb(crtc->base.primary); return; error: @@ -7730,6 +7748,10 @@ ironlake_get_initial_plane_config(struct intel_crtc *crtc, struct drm_framebuffer *fb; struct intel_framebuffer *intel_fb; + val = I915_READ(DSPCNTR(pipe)); + if (!(val & DISPLAY_PLANE_ENABLE)) + return; + intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL); if (!intel_fb) { DRM_DEBUG_KMS("failed to alloc fb\n"); @@ -7738,8 +7760,6 @@ ironlake_get_initial_plane_config(struct intel_crtc *crtc, fb = &intel_fb->base; - val = I915_READ(DSPCNTR(pipe)); - if (INTEL_INFO(dev)->gen >= 4) if (val & DISPPLANE_TILED) plane_config->tiling = I915_TILING_X; @@ -7778,6 +7798,7 @@ ironlake_get_initial_plane_config(struct intel_crtc *crtc, plane_config->size); crtc->base.primary->fb = fb; + update_state_fb(crtc->base.primary); } static bool ironlake_get_pipe_config(struct intel_crtc *crtc, @@ -9716,7 +9737,7 @@ void intel_check_page_flip(struct drm_device *dev, int pipe) struct drm_crtc *crtc = dev_priv->pipe_to_crtc_mapping[pipe]; struct intel_crtc *intel_crtc = to_intel_crtc(crtc); - WARN_ON(!in_irq()); + WARN_ON(!in_interrupt()); if (crtc == NULL) return; @@ -9816,6 +9837,7 @@ static int intel_crtc_page_flip(struct drm_crtc *crtc, drm_gem_object_reference(&obj->base); crtc->primary->fb = fb; + update_state_fb(crtc->primary); work->pending_flip_obj = obj; @@ -9884,6 +9906,7 @@ cleanup_unpin: cleanup_pending: atomic_dec(&intel_crtc->unpin_work_count); crtc->primary->fb = old_fb; + update_state_fb(crtc->primary); drm_gem_object_unreference(&work->old_fb_obj->base); drm_gem_object_unreference(&obj->base); mutex_unlock(&dev->struct_mutex); @@ -13718,6 +13741,7 @@ void intel_modeset_gem_init(struct drm_device *dev) to_intel_crtc(c)->pipe); drm_framebuffer_unreference(c->primary->fb); c->primary->fb = NULL; + update_state_fb(c->primary); } } mutex_unlock(&dev->struct_mutex); diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c index c47a3baa53d5..4e8fb891d4ea 100644 --- a/drivers/gpu/drm/i915/intel_uncore.c +++ b/drivers/gpu/drm/i915/intel_uncore.c @@ -1048,8 +1048,14 @@ static void intel_uncore_fw_domains_init(struct drm_device *dev) /* We need to init first for ECOBUS access and then * determine later if we want to reinit, in case of MT access is - * not working + * not working. In this stage we don't know which flavour this + * ivb is, so it is better to reset also the gen6 fw registers + * before the ecobus check. */ + + __raw_i915_write32(dev_priv, FORCEWAKE, 0); + __raw_posting_read(dev_priv, ECOBUS); + fw_domain_init(dev_priv, FW_DOMAIN_ID_RENDER, FORCEWAKE_MT, FORCEWAKE_MT_ACK); diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c b/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c index 29bd539af183..6efa8f38ff54 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/device/base.c @@ -340,11 +340,13 @@ nvkm_devobj_ctor(struct nvkm_object *parent, struct nvkm_object *engine, /* switch mmio to cpu's native endianness */ #ifndef __BIG_ENDIAN - if (ioread32_native(map + 0x000004) != 0x00000000) + if (ioread32_native(map + 0x000004) != 0x00000000) { #else - if (ioread32_native(map + 0x000004) == 0x00000000) + if (ioread32_native(map + 0x000004) == 0x00000000) { #endif iowrite32_native(0x01000001, map + 0x000004); + ioread32_native(map); + } /* read boot0 and strapping information */ boot0 = ioread32_native(map + 0x000000); diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/device/gm100.c b/drivers/gpu/drm/nouveau/nvkm/engine/device/gm100.c index 539561ed3281..108d048da764 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/device/gm100.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/device/gm100.c @@ -142,6 +142,49 @@ gm100_identify(struct nvkm_device *device) device->oclass[NVDEV_ENGINE_MSPPP ] = &gf100_msppp_oclass; #endif break; + case 0x126: + device->cname = "GM206"; + device->oclass[NVDEV_SUBDEV_VBIOS ] = &nvkm_bios_oclass; + device->oclass[NVDEV_SUBDEV_GPIO ] = gk104_gpio_oclass; + device->oclass[NVDEV_SUBDEV_I2C ] = gm204_i2c_oclass; + device->oclass[NVDEV_SUBDEV_FUSE ] = &gm107_fuse_oclass; +#if 0 + /* looks to be some non-trivial changes */ + device->oclass[NVDEV_SUBDEV_CLK ] = &gk104_clk_oclass; + /* priv ring says no to 0x10eb14 writes */ + device->oclass[NVDEV_SUBDEV_THERM ] = &gm107_therm_oclass; +#endif + device->oclass[NVDEV_SUBDEV_MXM ] = &nv50_mxm_oclass; + device->oclass[NVDEV_SUBDEV_DEVINIT] = gm204_devinit_oclass; + device->oclass[NVDEV_SUBDEV_MC ] = gk20a_mc_oclass; + device->oclass[NVDEV_SUBDEV_BUS ] = gf100_bus_oclass; + device->oclass[NVDEV_SUBDEV_TIMER ] = &gk20a_timer_oclass; + device->oclass[NVDEV_SUBDEV_FB ] = gm107_fb_oclass; + device->oclass[NVDEV_SUBDEV_LTC ] = gm107_ltc_oclass; + device->oclass[NVDEV_SUBDEV_IBUS ] = &gk104_ibus_oclass; + device->oclass[NVDEV_SUBDEV_INSTMEM] = nv50_instmem_oclass; + device->oclass[NVDEV_SUBDEV_MMU ] = &gf100_mmu_oclass; + device->oclass[NVDEV_SUBDEV_BAR ] = &gf100_bar_oclass; + device->oclass[NVDEV_SUBDEV_PMU ] = gk208_pmu_oclass; +#if 0 + device->oclass[NVDEV_SUBDEV_VOLT ] = &nv40_volt_oclass; +#endif + device->oclass[NVDEV_ENGINE_DMAOBJ ] = gf110_dmaeng_oclass; +#if 0 + device->oclass[NVDEV_ENGINE_FIFO ] = gk208_fifo_oclass; + device->oclass[NVDEV_ENGINE_SW ] = gf100_sw_oclass; + device->oclass[NVDEV_ENGINE_GR ] = gm107_gr_oclass; +#endif + device->oclass[NVDEV_ENGINE_DISP ] = gm204_disp_oclass; +#if 0 + device->oclass[NVDEV_ENGINE_CE0 ] = &gm204_ce0_oclass; + device->oclass[NVDEV_ENGINE_CE1 ] = &gm204_ce1_oclass; + device->oclass[NVDEV_ENGINE_CE2 ] = &gm204_ce2_oclass; + device->oclass[NVDEV_ENGINE_MSVLD ] = &gk104_msvld_oclass; + device->oclass[NVDEV_ENGINE_MSPDEC ] = &gk104_mspdec_oclass; + device->oclass[NVDEV_ENGINE_MSPPP ] = &gf100_msppp_oclass; +#endif + break; default: nv_fatal(device, "unknown Maxwell chipset\n"); return -EINVAL; diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/nv04.c b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/nv04.c index b038b6eb51db..043e4296084c 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/fifo/nv04.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/fifo/nv04.c @@ -502,72 +502,57 @@ nv04_fifo_intr(struct nvkm_subdev *subdev) { struct nvkm_device *device = nv_device(subdev); struct nv04_fifo_priv *priv = (void *)subdev; - uint32_t status, reassign; - int cnt = 0; + u32 mask = nv_rd32(priv, NV03_PFIFO_INTR_EN_0); + u32 stat = nv_rd32(priv, NV03_PFIFO_INTR_0) & mask; + u32 reassign, chid, get, sem; reassign = nv_rd32(priv, NV03_PFIFO_CACHES) & 1; - while ((status = nv_rd32(priv, NV03_PFIFO_INTR_0)) && (cnt++ < 100)) { - uint32_t chid, get; - - nv_wr32(priv, NV03_PFIFO_CACHES, 0); - - chid = nv_rd32(priv, NV03_PFIFO_CACHE1_PUSH1) & priv->base.max; - get = nv_rd32(priv, NV03_PFIFO_CACHE1_GET); + nv_wr32(priv, NV03_PFIFO_CACHES, 0); - if (status & NV_PFIFO_INTR_CACHE_ERROR) { - nv04_fifo_cache_error(device, priv, chid, get); - status &= ~NV_PFIFO_INTR_CACHE_ERROR; - } + chid = nv_rd32(priv, NV03_PFIFO_CACHE1_PUSH1) & priv->base.max; + get = nv_rd32(priv, NV03_PFIFO_CACHE1_GET); - if (status & NV_PFIFO_INTR_DMA_PUSHER) { - nv04_fifo_dma_pusher(device, priv, chid); - status &= ~NV_PFIFO_INTR_DMA_PUSHER; - } + if (stat & NV_PFIFO_INTR_CACHE_ERROR) { + nv04_fifo_cache_error(device, priv, chid, get); + stat &= ~NV_PFIFO_INTR_CACHE_ERROR; + } - if (status & NV_PFIFO_INTR_SEMAPHORE) { - uint32_t sem; + if (stat & NV_PFIFO_INTR_DMA_PUSHER) { + nv04_fifo_dma_pusher(device, priv, chid); + stat &= ~NV_PFIFO_INTR_DMA_PUSHER; + } - status &= ~NV_PFIFO_INTR_SEMAPHORE; - nv_wr32(priv, NV03_PFIFO_INTR_0, - NV_PFIFO_INTR_SEMAPHORE); + if (stat & NV_PFIFO_INTR_SEMAPHORE) { + stat &= ~NV_PFIFO_INTR_SEMAPHORE; + nv_wr32(priv, NV03_PFIFO_INTR_0, NV_PFIFO_INTR_SEMAPHORE); - sem = nv_rd32(priv, NV10_PFIFO_CACHE1_SEMAPHORE); - nv_wr32(priv, NV10_PFIFO_CACHE1_SEMAPHORE, sem | 0x1); + sem = nv_rd32(priv, NV10_PFIFO_CACHE1_SEMAPHORE); + nv_wr32(priv, NV10_PFIFO_CACHE1_SEMAPHORE, sem | 0x1); - nv_wr32(priv, NV03_PFIFO_CACHE1_GET, get + 4); - nv_wr32(priv, NV04_PFIFO_CACHE1_PULL0, 1); - } + nv_wr32(priv, NV03_PFIFO_CACHE1_GET, get + 4); + nv_wr32(priv, NV04_PFIFO_CACHE1_PULL0, 1); + } - if (device->card_type == NV_50) { - if (status & 0x00000010) { - status &= ~0x00000010; - nv_wr32(priv, 0x002100, 0x00000010); - } - - if (status & 0x40000000) { - nv_wr32(priv, 0x002100, 0x40000000); - nvkm_fifo_uevent(&priv->base); - status &= ~0x40000000; - } + if (device->card_type == NV_50) { + if (stat & 0x00000010) { + stat &= ~0x00000010; + nv_wr32(priv, 0x002100, 0x00000010); } - if (status) { - nv_warn(priv, "unknown intr 0x%08x, ch %d\n", - status, chid); - nv_wr32(priv, NV03_PFIFO_INTR_0, status); - status = 0; + if (stat & 0x40000000) { + nv_wr32(priv, 0x002100, 0x40000000); + nvkm_fifo_uevent(&priv->base); + stat &= ~0x40000000; } - - nv_wr32(priv, NV03_PFIFO_CACHES, reassign); } - if (status) { - nv_error(priv, "still angry after %d spins, halt\n", cnt); - nv_wr32(priv, 0x002140, 0); - nv_wr32(priv, 0x000140, 0); + if (stat) { + nv_warn(priv, "unknown intr 0x%08x\n", stat); + nv_mask(priv, NV03_PFIFO_INTR_EN_0, stat, 0x00000000); + nv_wr32(priv, NV03_PFIFO_INTR_0, stat); } - nv_wr32(priv, 0x000100, 0x00000100); + nv_wr32(priv, NV03_PFIFO_CACHES, reassign); } static int diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgf100.c b/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgf100.c index 2e7ec389eea7..57e2c5b13123 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgf100.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgf100.c @@ -1032,9 +1032,9 @@ gf100_grctx_generate_bundle(struct gf100_grctx *info) const int s = 8; const int b = mmio_vram(info, impl->bundle_size, (1 << s), access); mmio_refn(info, 0x408004, 0x00000000, s, b); - mmio_refn(info, 0x408008, 0x80000000 | (impl->bundle_size >> s), 0, b); + mmio_wr32(info, 0x408008, 0x80000000 | (impl->bundle_size >> s)); mmio_refn(info, 0x418808, 0x00000000, s, b); - mmio_refn(info, 0x41880c, 0x80000000 | (impl->bundle_size >> s), 0, b); + mmio_wr32(info, 0x41880c, 0x80000000 | (impl->bundle_size >> s)); } void diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgk104.c b/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgk104.c index b52300d8861a..5e9454ba158f 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgk104.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgk104.c @@ -851,9 +851,9 @@ gk104_grctx_generate_bundle(struct gf100_grctx *info) const int s = 8; const int b = mmio_vram(info, impl->bundle_size, (1 << s), access); mmio_refn(info, 0x408004, 0x00000000, s, b); - mmio_refn(info, 0x408008, 0x80000000 | (impl->bundle_size >> s), 0, b); + mmio_wr32(info, 0x408008, 0x80000000 | (impl->bundle_size >> s)); mmio_refn(info, 0x418808, 0x00000000, s, b); - mmio_refn(info, 0x41880c, 0x80000000 | (impl->bundle_size >> s), 0, b); + mmio_wr32(info, 0x41880c, 0x80000000 | (impl->bundle_size >> s)); mmio_wr32(info, 0x4064c8, (state_limit << 16) | token_limit); } diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgm107.c b/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgm107.c index 956f4dce960c..b2fae6e389e2 100644 --- a/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgm107.c +++ b/drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgm107.c @@ -871,9 +871,9 @@ gm107_grctx_generate_bundle(struct gf100_grctx *info) const int s = 8; const int b = mmio_vram(info, impl->bundle_size, (1 << s), access); mmio_refn(info, 0x408004, 0x00000000, s, b); - mmio_refn(info, 0x408008, 0x80000000 | (impl->bundle_size >> s), 0, b); + mmio_wr32(info, 0x408008, 0x80000000 | (impl->bundle_size >> s)); mmio_refn(info, 0x418e24, 0x00000000, s, b); - mmio_refn(info, 0x418e28, 0x80000000 | (impl->bundle_size >> s), 0, b); + mmio_wr32(info, 0x418e28, 0x80000000 | (impl->bundle_size >> s)); mmio_wr32(info, 0x4064c8, (state_limit << 16) | token_limit); } diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/i2c.c b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/i2c.c index d1a89b2bd5c1..c4e1f085ee10 100644 --- a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/i2c.c +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/i2c.c @@ -74,7 +74,11 @@ dcb_i2c_parse(struct nvkm_bios *bios, u8 idx, struct dcb_i2c_entry *info) u16 ent = dcb_i2c_entry(bios, idx, &ver, &len); if (ent) { if (ver >= 0x41) { - if (!(nv_ro32(bios, ent) & 0x80000000)) + u32 ent_value = nv_ro32(bios, ent); + u8 i2c_port = (ent_value >> 27) & 0x1f; + u8 dpaux_port = (ent_value >> 22) & 0x1f; + /* value 0x1f means unused according to DCB 4.x spec */ + if (i2c_port == 0x1f && dpaux_port == 0x1f) info->type = DCB_I2C_UNUSED; else info->type = DCB_I2C_PMGR; diff --git a/drivers/gpu/drm/radeon/radeon_fence.c b/drivers/gpu/drm/radeon/radeon_fence.c index d13d1b5a859f..df09ca7c4889 100644 --- a/drivers/gpu/drm/radeon/radeon_fence.c +++ b/drivers/gpu/drm/radeon/radeon_fence.c @@ -1030,37 +1030,59 @@ static inline bool radeon_test_signaled(struct radeon_fence *fence) return test_bit(FENCE_FLAG_SIGNALED_BIT, &fence->base.flags); } +struct radeon_wait_cb { + struct fence_cb base; + struct task_struct *task; +}; + +static void +radeon_fence_wait_cb(struct fence *fence, struct fence_cb *cb) +{ + struct radeon_wait_cb *wait = + container_of(cb, struct radeon_wait_cb, base); + + wake_up_process(wait->task); +} + static signed long radeon_fence_default_wait(struct fence *f, bool intr, signed long t) { struct radeon_fence *fence = to_radeon_fence(f); struct radeon_device *rdev = fence->rdev; - bool signaled; + struct radeon_wait_cb cb; - fence_enable_sw_signaling(&fence->base); + cb.task = current; - /* - * This function has to return -EDEADLK, but cannot hold - * exclusive_lock during the wait because some callers - * may already hold it. This means checking needs_reset without - * lock, and not fiddling with any gpu internals. - * - * The callback installed with fence_enable_sw_signaling will - * run before our wait_event_*timeout call, so we will see - * both the signaled fence and the changes to needs_reset. - */ + if (fence_add_callback(f, &cb.base, radeon_fence_wait_cb)) + return t; + + while (t > 0) { + if (intr) + set_current_state(TASK_INTERRUPTIBLE); + else + set_current_state(TASK_UNINTERRUPTIBLE); + + /* + * radeon_test_signaled must be called after + * set_current_state to prevent a race with wake_up_process + */ + if (radeon_test_signaled(fence)) + break; + + if (rdev->needs_reset) { + t = -EDEADLK; + break; + } + + t = schedule_timeout(t); + + if (t > 0 && intr && signal_pending(current)) + t = -ERESTARTSYS; + } + + __set_current_state(TASK_RUNNING); + fence_remove_callback(f, &cb.base); - if (intr) - t = wait_event_interruptible_timeout(rdev->fence_queue, - ((signaled = radeon_test_signaled(fence)) || - rdev->needs_reset), t); - else - t = wait_event_timeout(rdev->fence_queue, - ((signaled = radeon_test_signaled(fence)) || - rdev->needs_reset), t); - - if (t > 0 && !signaled) - return -EDEADLK; return t; } diff --git a/drivers/gpu/drm/radeon/radeon_kfd.c b/drivers/gpu/drm/radeon/radeon_kfd.c index 061eaa9c19c7..122eb5693ba1 100644 --- a/drivers/gpu/drm/radeon/radeon_kfd.c +++ b/drivers/gpu/drm/radeon/radeon_kfd.c @@ -153,7 +153,7 @@ void radeon_kfd_device_init(struct radeon_device *rdev) .compute_vmid_bitmap = 0xFF00, .first_compute_pipe = 1, - .compute_pipe_count = 8 - 1, + .compute_pipe_count = 4 - 1, }; radeon_doorbell_get_kfd_info(rdev, diff --git a/drivers/gpu/drm/radeon/radeon_object.c b/drivers/gpu/drm/radeon/radeon_object.c index 43e09942823e..318165d4855c 100644 --- a/drivers/gpu/drm/radeon/radeon_object.c +++ b/drivers/gpu/drm/radeon/radeon_object.c @@ -173,17 +173,6 @@ void radeon_ttm_placement_from_domain(struct radeon_bo *rbo, u32 domain) else rbo->placements[i].lpfn = 0; } - - /* - * Use two-ended allocation depending on the buffer size to - * improve fragmentation quality. - * 512kb was measured as the most optimal number. - */ - if (rbo->tbo.mem.size > 512 * 1024) { - for (i = 0; i < c; i++) { - rbo->placements[i].flags |= TTM_PL_FLAG_TOPDOWN; - } - } } int radeon_bo_create(struct radeon_device *rdev, diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c index e088e5558da0..a7fb2735d4a9 100644 --- a/drivers/gpu/drm/radeon/si.c +++ b/drivers/gpu/drm/radeon/si.c @@ -7130,8 +7130,7 @@ int si_set_uvd_clocks(struct radeon_device *rdev, u32 vclk, u32 dclk) WREG32_P(CG_UPLL_FUNC_CNTL, UPLL_BYPASS_EN_MASK, ~UPLL_BYPASS_EN_MASK); if (!vclk || !dclk) { - /* keep the Bypass mode, put PLL to sleep */ - WREG32_P(CG_UPLL_FUNC_CNTL, UPLL_SLEEP_MASK, ~UPLL_SLEEP_MASK); + /* keep the Bypass mode */ return 0; } @@ -7147,8 +7146,7 @@ int si_set_uvd_clocks(struct radeon_device *rdev, u32 vclk, u32 dclk) /* set VCO_MODE to 1 */ WREG32_P(CG_UPLL_FUNC_CNTL, UPLL_VCO_MODE_MASK, ~UPLL_VCO_MODE_MASK); - /* toggle UPLL_SLEEP to 1 then back to 0 */ - WREG32_P(CG_UPLL_FUNC_CNTL, UPLL_SLEEP_MASK, ~UPLL_SLEEP_MASK); + /* disable sleep mode */ WREG32_P(CG_UPLL_FUNC_CNTL, 0, ~UPLL_SLEEP_MASK); /* deassert UPLL_RESET */ diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c index 6c6b655defcf..e13b9cbc304e 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c @@ -725,32 +725,6 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset) goto out_err1; } - ret = ttm_bo_init_mm(&dev_priv->bdev, TTM_PL_VRAM, - (dev_priv->vram_size >> PAGE_SHIFT)); - if (unlikely(ret != 0)) { - DRM_ERROR("Failed initializing memory manager for VRAM.\n"); - goto out_err2; - } - - dev_priv->has_gmr = true; - if (((dev_priv->capabilities & (SVGA_CAP_GMR | SVGA_CAP_GMR2)) == 0) || - refuse_dma || ttm_bo_init_mm(&dev_priv->bdev, VMW_PL_GMR, - VMW_PL_GMR) != 0) { - DRM_INFO("No GMR memory available. " - "Graphics memory resources are very limited.\n"); - dev_priv->has_gmr = false; - } - - if (dev_priv->capabilities & SVGA_CAP_GBOBJECTS) { - dev_priv->has_mob = true; - if (ttm_bo_init_mm(&dev_priv->bdev, VMW_PL_MOB, - VMW_PL_MOB) != 0) { - DRM_INFO("No MOB memory available. " - "3D will be disabled.\n"); - dev_priv->has_mob = false; - } - } - dev_priv->mmio_mtrr = arch_phys_wc_add(dev_priv->mmio_start, dev_priv->mmio_size); @@ -813,6 +787,33 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset) goto out_no_fman; } + + ret = ttm_bo_init_mm(&dev_priv->bdev, TTM_PL_VRAM, + (dev_priv->vram_size >> PAGE_SHIFT)); + if (unlikely(ret != 0)) { + DRM_ERROR("Failed initializing memory manager for VRAM.\n"); + goto out_no_vram; + } + + dev_priv->has_gmr = true; + if (((dev_priv->capabilities & (SVGA_CAP_GMR | SVGA_CAP_GMR2)) == 0) || + refuse_dma || ttm_bo_init_mm(&dev_priv->bdev, VMW_PL_GMR, + VMW_PL_GMR) != 0) { + DRM_INFO("No GMR memory available. " + "Graphics memory resources are very limited.\n"); + dev_priv->has_gmr = false; + } + + if (dev_priv->capabilities & SVGA_CAP_GBOBJECTS) { + dev_priv->has_mob = true; + if (ttm_bo_init_mm(&dev_priv->bdev, VMW_PL_MOB, + VMW_PL_MOB) != 0) { + DRM_INFO("No MOB memory available. " + "3D will be disabled.\n"); + dev_priv->has_mob = false; + } + } + vmw_kms_save_vga(dev_priv); /* Start kms and overlay systems, needs fifo. */ @@ -838,6 +839,12 @@ out_no_fifo: vmw_kms_close(dev_priv); out_no_kms: vmw_kms_restore_vga(dev_priv); + if (dev_priv->has_mob) + (void) ttm_bo_clean_mm(&dev_priv->bdev, VMW_PL_MOB); + if (dev_priv->has_gmr) + (void) ttm_bo_clean_mm(&dev_priv->bdev, VMW_PL_GMR); + (void)ttm_bo_clean_mm(&dev_priv->bdev, TTM_PL_VRAM); +out_no_vram: vmw_fence_manager_takedown(dev_priv->fman); out_no_fman: if (dev_priv->capabilities & SVGA_CAP_IRQMASK) @@ -853,12 +860,6 @@ out_err4: iounmap(dev_priv->mmio_virt); out_err3: arch_phys_wc_del(dev_priv->mmio_mtrr); - if (dev_priv->has_mob) - (void) ttm_bo_clean_mm(&dev_priv->bdev, VMW_PL_MOB); - if (dev_priv->has_gmr) - (void) ttm_bo_clean_mm(&dev_priv->bdev, VMW_PL_GMR); - (void)ttm_bo_clean_mm(&dev_priv->bdev, TTM_PL_VRAM); -out_err2: (void)ttm_bo_device_release(&dev_priv->bdev); out_err1: vmw_ttm_global_release(dev_priv); @@ -887,6 +888,13 @@ static int vmw_driver_unload(struct drm_device *dev) } vmw_kms_close(dev_priv); vmw_overlay_close(dev_priv); + + if (dev_priv->has_mob) + (void) ttm_bo_clean_mm(&dev_priv->bdev, VMW_PL_MOB); + if (dev_priv->has_gmr) + (void)ttm_bo_clean_mm(&dev_priv->bdev, VMW_PL_GMR); + (void)ttm_bo_clean_mm(&dev_priv->bdev, TTM_PL_VRAM); + vmw_fence_manager_takedown(dev_priv->fman); if (dev_priv->capabilities & SVGA_CAP_IRQMASK) drm_irq_uninstall(dev_priv->dev); @@ -898,11 +906,6 @@ static int vmw_driver_unload(struct drm_device *dev) ttm_object_device_release(&dev_priv->tdev); iounmap(dev_priv->mmio_virt); arch_phys_wc_del(dev_priv->mmio_mtrr); - if (dev_priv->has_mob) - (void) ttm_bo_clean_mm(&dev_priv->bdev, VMW_PL_MOB); - if (dev_priv->has_gmr) - (void)ttm_bo_clean_mm(&dev_priv->bdev, VMW_PL_GMR); - (void)ttm_bo_clean_mm(&dev_priv->bdev, TTM_PL_VRAM); (void)ttm_bo_device_release(&dev_priv->bdev); vmw_ttm_global_release(dev_priv); @@ -1235,6 +1238,7 @@ static void vmw_remove(struct pci_dev *pdev) { struct drm_device *dev = pci_get_drvdata(pdev); + pci_disable_device(pdev); drm_put_dev(dev); } diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c index 33176d05db35..654c8daeb5ab 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c @@ -890,7 +890,8 @@ static int vmw_translate_mob_ptr(struct vmw_private *dev_priv, ret = vmw_user_dmabuf_lookup(sw_context->fp->tfile, handle, &vmw_bo); if (unlikely(ret != 0)) { DRM_ERROR("Could not find or use MOB buffer.\n"); - return -EINVAL; + ret = -EINVAL; + goto out_no_reloc; } bo = &vmw_bo->base; @@ -914,7 +915,7 @@ static int vmw_translate_mob_ptr(struct vmw_private *dev_priv, out_no_reloc: vmw_dmabuf_unreference(&vmw_bo); - vmw_bo_p = NULL; + *vmw_bo_p = NULL; return ret; } @@ -951,7 +952,8 @@ static int vmw_translate_guest_ptr(struct vmw_private *dev_priv, ret = vmw_user_dmabuf_lookup(sw_context->fp->tfile, handle, &vmw_bo); if (unlikely(ret != 0)) { DRM_ERROR("Could not find or use GMR region.\n"); - return -EINVAL; + ret = -EINVAL; + goto out_no_reloc; } bo = &vmw_bo->base; @@ -974,7 +976,7 @@ static int vmw_translate_guest_ptr(struct vmw_private *dev_priv, out_no_reloc: vmw_dmabuf_unreference(&vmw_bo); - vmw_bo_p = NULL; + *vmw_bo_p = NULL; return ret; } @@ -2780,13 +2782,11 @@ int vmw_execbuf_ioctl(struct drm_device *dev, void *data, NULL, arg->command_size, arg->throttle_us, (void __user *)(unsigned long)arg->fence_rep, NULL); - + ttm_read_unlock(&dev_priv->reservation_sem); if (unlikely(ret != 0)) - goto out_unlock; + return ret; vmw_kms_cursor_post_execbuf(dev_priv); -out_unlock: - ttm_read_unlock(&dev_priv->reservation_sem); - return ret; + return 0; } diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c index 8725b79e7847..07cda8cbbddb 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c @@ -2033,23 +2033,17 @@ int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data, int i; struct drm_mode_config *mode_config = &dev->mode_config; - ret = ttm_read_lock(&dev_priv->reservation_sem, true); - if (unlikely(ret != 0)) - return ret; - if (!arg->num_outputs) { struct drm_vmw_rect def_rect = {0, 0, 800, 600}; vmw_du_update_layout(dev_priv, 1, &def_rect); - goto out_unlock; + return 0; } rects_size = arg->num_outputs * sizeof(struct drm_vmw_rect); rects = kcalloc(arg->num_outputs, sizeof(struct drm_vmw_rect), GFP_KERNEL); - if (unlikely(!rects)) { - ret = -ENOMEM; - goto out_unlock; - } + if (unlikely(!rects)) + return -ENOMEM; user_rects = (void __user *)(unsigned long)arg->rects; ret = copy_from_user(rects, user_rects, rects_size); @@ -2074,7 +2068,5 @@ int vmw_kms_update_layout_ioctl(struct drm_device *dev, void *data, out_free: kfree(rects); -out_unlock: - ttm_read_unlock(&dev_priv->reservation_sem); return ret; } diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c index 7c669c328c4c..56ce8c2b5530 100644 --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -1959,6 +1959,7 @@ static const struct hid_device_id hid_have_special_driver[] = { { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb65a) }, { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE_BT) }, { HID_USB_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE) }, + { HID_USB_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE_PRO) }, { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED, USB_DEVICE_ID_TOPSEED_CYBERLINK) }, { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED2, USB_DEVICE_ID_TOPSEED2_RF_COMBO) }, { HID_USB_DEVICE(USB_VENDOR_ID_TWINHAN, USB_DEVICE_ID_TWINHAN_IR_REMOTE) }, diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h index 204312bfab2c..9c4786759f16 100644 --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -586,6 +586,7 @@ #define USB_VENDOR_ID_LOGITECH 0x046d #define USB_DEVICE_ID_LOGITECH_AUDIOHUB 0x0a0e #define USB_DEVICE_ID_LOGITECH_T651 0xb00c +#define USB_DEVICE_ID_LOGITECH_C077 0xc007 #define USB_DEVICE_ID_LOGITECH_RECEIVER 0xc101 #define USB_DEVICE_ID_LOGITECH_HARMONY_FIRST 0xc110 #define USB_DEVICE_ID_LOGITECH_HARMONY_LAST 0xc14f @@ -898,6 +899,7 @@ #define USB_VENDOR_ID_TIVO 0x150a #define USB_DEVICE_ID_TIVO_SLIDE_BT 0x1200 #define USB_DEVICE_ID_TIVO_SLIDE 0x1201 +#define USB_DEVICE_ID_TIVO_SLIDE_PRO 0x1203 #define USB_VENDOR_ID_TOPSEED 0x0766 #define USB_DEVICE_ID_TOPSEED_CYBERLINK 0x0204 diff --git a/drivers/hid/hid-tivo.c b/drivers/hid/hid-tivo.c index d790d8d71f7f..d98696927453 100644 --- a/drivers/hid/hid-tivo.c +++ b/drivers/hid/hid-tivo.c @@ -64,6 +64,7 @@ static const struct hid_device_id tivo_devices[] = { /* TiVo Slide Bluetooth remote, pairs with a Broadcom dongle */ { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE_BT) }, { HID_USB_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE) }, + { HID_USB_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE_PRO) }, { } }; MODULE_DEVICE_TABLE(hid, tivo_devices); diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c index 9be99a67bfe2..a82127753461 100644 --- a/drivers/hid/usbhid/hid-quirks.c +++ b/drivers/hid/usbhid/hid-quirks.c @@ -78,6 +78,7 @@ static const struct hid_blacklist { { USB_VENDOR_ID_ELO, USB_DEVICE_ID_ELO_TS2700, HID_QUIRK_NOGET }, { USB_VENDOR_ID_FORMOSA, USB_DEVICE_ID_FORMOSA_IR_RECEIVER, HID_QUIRK_NO_INIT_REPORTS }, { USB_VENDOR_ID_FREESCALE, USB_DEVICE_ID_FREESCALE_MX28, HID_QUIRK_NOGET }, + { USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_C077, HID_QUIRK_ALWAYS_POLL }, { USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS, HID_QUIRK_NOGET }, { USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_3, HID_QUIRK_NO_INIT_REPORTS }, { USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_3_JP, HID_QUIRK_NO_INIT_REPORTS }, diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c index 046351cf17f3..bbe32d66e500 100644 --- a/drivers/hid/wacom_wac.c +++ b/drivers/hid/wacom_wac.c @@ -551,9 +551,13 @@ static int wacom_intuos_inout(struct wacom_wac *wacom) (features->type == CINTIQ && !(data[1] & 0x40))) return 1; - if (features->quirks & WACOM_QUIRK_MULTI_INPUT) + if (wacom->shared) { wacom->shared->stylus_in_proximity = true; + if (wacom->shared->touch_down) + return 1; + } + /* in Range while exiting */ if (((data[1] & 0xfe) == 0x20) && wacom->reporting_data) { input_report_key(input, BTN_TOUCH, 0); @@ -1043,27 +1047,28 @@ static int wacom_24hdt_irq(struct wacom_wac *wacom) struct input_dev *input = wacom->input; unsigned char *data = wacom->data; int i; - int current_num_contacts = 0; + int current_num_contacts = data[61]; int contacts_to_send = 0; int num_contacts_left = 4; /* maximum contacts per packet */ int byte_per_packet = WACOM_BYTES_PER_24HDT_PACKET; int y_offset = 2; + static int contact_with_no_pen_down_count = 0; if (wacom->features.type == WACOM_27QHDT) { current_num_contacts = data[63]; num_contacts_left = 10; byte_per_packet = WACOM_BYTES_PER_QHDTHID_PACKET; y_offset = 0; - } else { - current_num_contacts = data[61]; } /* * First packet resets the counter since only the first * packet in series will have non-zero current_num_contacts. */ - if (current_num_contacts) + if (current_num_contacts) { wacom->num_contacts_left = current_num_contacts; + contact_with_no_pen_down_count = 0; + } contacts_to_send = min(num_contacts_left, wacom->num_contacts_left); @@ -1096,15 +1101,16 @@ static int wacom_24hdt_irq(struct wacom_wac *wacom) input_report_abs(input, ABS_MT_WIDTH_MINOR, min(w, h)); input_report_abs(input, ABS_MT_ORIENTATION, w > h); } + contact_with_no_pen_down_count++; } } input_mt_report_pointer_emulation(input, true); wacom->num_contacts_left -= contacts_to_send; - if (wacom->num_contacts_left <= 0) + if (wacom->num_contacts_left <= 0) { wacom->num_contacts_left = 0; - - wacom->shared->touch_down = (wacom->num_contacts_left > 0); + wacom->shared->touch_down = (contact_with_no_pen_down_count > 0); + } return 1; } @@ -1116,6 +1122,7 @@ static int wacom_mt_touch(struct wacom_wac *wacom) int current_num_contacts = data[2]; int contacts_to_send = 0; int x_offset = 0; + static int contact_with_no_pen_down_count = 0; /* MTTPC does not support Height and Width */ if (wacom->features.type == MTTPC || wacom->features.type == MTTPC_B) @@ -1125,8 +1132,10 @@ static int wacom_mt_touch(struct wacom_wac *wacom) * First packet resets the counter since only the first * packet in series will have non-zero current_num_contacts. */ - if (current_num_contacts) + if (current_num_contacts) { wacom->num_contacts_left = current_num_contacts; + contact_with_no_pen_down_count = 0; + } /* There are at most 5 contacts per packet */ contacts_to_send = min(5, wacom->num_contacts_left); @@ -1147,15 +1156,16 @@ static int wacom_mt_touch(struct wacom_wac *wacom) int y = get_unaligned_le16(&data[offset + x_offset + 9]); input_report_abs(input, ABS_MT_POSITION_X, x); input_report_abs(input, ABS_MT_POSITION_Y, y); + contact_with_no_pen_down_count++; } } input_mt_report_pointer_emulation(input, true); wacom->num_contacts_left -= contacts_to_send; - if (wacom->num_contacts_left < 0) + if (wacom->num_contacts_left <= 0) { wacom->num_contacts_left = 0; - - wacom->shared->touch_down = (wacom->num_contacts_left > 0); + wacom->shared->touch_down = (contact_with_no_pen_down_count > 0); + } return 1; } @@ -1193,29 +1203,25 @@ static int wacom_tpc_single_touch(struct wacom_wac *wacom, size_t len) { unsigned char *data = wacom->data; struct input_dev *input = wacom->input; - bool prox; + bool prox = !wacom->shared->stylus_in_proximity; int x = 0, y = 0; if (wacom->features.touch_max > 1 || len > WACOM_PKGLEN_TPC2FG) return 0; - if (!wacom->shared->stylus_in_proximity) { - if (len == WACOM_PKGLEN_TPC1FG) { - prox = data[0] & 0x01; - x = get_unaligned_le16(&data[1]); - y = get_unaligned_le16(&data[3]); - } else if (len == WACOM_PKGLEN_TPC1FG_B) { - prox = data[2] & 0x01; - x = get_unaligned_le16(&data[3]); - y = get_unaligned_le16(&data[5]); - } else { - prox = data[1] & 0x01; - x = le16_to_cpup((__le16 *)&data[2]); - y = le16_to_cpup((__le16 *)&data[4]); - } - } else - /* force touch out when pen is in prox */ - prox = 0; + if (len == WACOM_PKGLEN_TPC1FG) { + prox = prox && (data[0] & 0x01); + x = get_unaligned_le16(&data[1]); + y = get_unaligned_le16(&data[3]); + } else if (len == WACOM_PKGLEN_TPC1FG_B) { + prox = prox && (data[2] & 0x01); + x = get_unaligned_le16(&data[3]); + y = get_unaligned_le16(&data[5]); + } else { + prox = prox && (data[1] & 0x01); + x = le16_to_cpup((__le16 *)&data[2]); + y = le16_to_cpup((__le16 *)&data[4]); + } if (prox) { input_report_abs(input, ABS_X, x); @@ -1613,6 +1619,7 @@ static int wacom_bpt_touch(struct wacom_wac *wacom) struct input_dev *pad_input = wacom->pad_input; unsigned char *data = wacom->data; int i; + int contact_with_no_pen_down_count = 0; if (data[0] != 0x02) return 0; @@ -1640,6 +1647,7 @@ static int wacom_bpt_touch(struct wacom_wac *wacom) } input_report_abs(input, ABS_MT_POSITION_X, x); input_report_abs(input, ABS_MT_POSITION_Y, y); + contact_with_no_pen_down_count++; } } @@ -1649,11 +1657,12 @@ static int wacom_bpt_touch(struct wacom_wac *wacom) input_report_key(pad_input, BTN_FORWARD, (data[1] & 0x04) != 0); input_report_key(pad_input, BTN_BACK, (data[1] & 0x02) != 0); input_report_key(pad_input, BTN_RIGHT, (data[1] & 0x01) != 0); + wacom->shared->touch_down = (contact_with_no_pen_down_count > 0); return 1; } -static void wacom_bpt3_touch_msg(struct wacom_wac *wacom, unsigned char *data) +static int wacom_bpt3_touch_msg(struct wacom_wac *wacom, unsigned char *data, int last_touch_count) { struct wacom_features *features = &wacom->features; struct input_dev *input = wacom->input; @@ -1661,7 +1670,7 @@ static void wacom_bpt3_touch_msg(struct wacom_wac *wacom, unsigned char *data) int slot = input_mt_get_slot_by_key(input, data[0]); if (slot < 0) - return; + return 0; touch = touch && !wacom->shared->stylus_in_proximity; @@ -1693,7 +1702,9 @@ static void wacom_bpt3_touch_msg(struct wacom_wac *wacom, unsigned char *data) input_report_abs(input, ABS_MT_POSITION_Y, y); input_report_abs(input, ABS_MT_TOUCH_MAJOR, width); input_report_abs(input, ABS_MT_TOUCH_MINOR, height); + last_touch_count++; } + return last_touch_count; } static void wacom_bpt3_button_msg(struct wacom_wac *wacom, unsigned char *data) @@ -1718,6 +1729,7 @@ static int wacom_bpt3_touch(struct wacom_wac *wacom) unsigned char *data = wacom->data; int count = data[1] & 0x07; int i; + int contact_with_no_pen_down_count = 0; if (data[0] != 0x02) return 0; @@ -1728,12 +1740,15 @@ static int wacom_bpt3_touch(struct wacom_wac *wacom) int msg_id = data[offset]; if (msg_id >= 2 && msg_id <= 17) - wacom_bpt3_touch_msg(wacom, data + offset); + contact_with_no_pen_down_count = + wacom_bpt3_touch_msg(wacom, data + offset, + contact_with_no_pen_down_count); else if (msg_id == 128) wacom_bpt3_button_msg(wacom, data + offset); } input_mt_report_pointer_emulation(input, true); + wacom->shared->touch_down = (contact_with_no_pen_down_count > 0); return 1; } @@ -1759,6 +1774,9 @@ static int wacom_bpt_pen(struct wacom_wac *wacom) return 0; } + if (wacom->shared->touch_down) + return 0; + prox = (data[1] & 0x20) == 0x20; /* diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c index 210cf4874cb7..edf274cabe81 100644 --- a/drivers/i2c/i2c-core.c +++ b/drivers/i2c/i2c-core.c @@ -679,9 +679,6 @@ static int i2c_device_remove(struct device *dev) status = driver->remove(client); } - if (dev->of_node) - irq_dispose_mapping(client->irq); - dev_pm_domain_detach(&client->dev, true); return status; } diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c index 1793aea4a7d2..6eb738ca6d2f 100644 --- a/drivers/ide/ide-tape.c +++ b/drivers/ide/ide-tape.c @@ -1793,11 +1793,11 @@ static void idetape_setup(ide_drive_t *drive, idetape_tape_t *tape, int minor) tape->best_dsc_rw_freq = clamp_t(unsigned long, t, IDETAPE_DSC_RW_MIN, IDETAPE_DSC_RW_MAX); printk(KERN_INFO "ide-tape: %s <-> %s: %dKBps, %d*%dkB buffer, " - "%lums tDSC%s\n", + "%ums tDSC%s\n", drive->name, tape->name, *(u16 *)&tape->caps[14], (*(u16 *)&tape->caps[16] * 512) / tape->buffer_size, tape->buffer_size / 1024, - tape->best_dsc_rw_freq * 1000 / HZ, + jiffies_to_msecs(tape->best_dsc_rw_freq), (drive->dev_flags & IDE_DFLAG_USING_DMA) ? ", DMA" : ""); ide_proc_register_driver(drive, tape->driver); diff --git a/drivers/infiniband/hw/mlx4/mad.c b/drivers/infiniband/hw/mlx4/mad.c index c7619716c31d..59040265e361 100644 --- a/drivers/infiniband/hw/mlx4/mad.c +++ b/drivers/infiniband/hw/mlx4/mad.c @@ -64,6 +64,14 @@ enum { #define GUID_TBL_BLK_NUM_ENTRIES 8 #define GUID_TBL_BLK_SIZE (GUID_TBL_ENTRY_SIZE * GUID_TBL_BLK_NUM_ENTRIES) +/* Counters should be saturate once they reach their maximum value */ +#define ASSIGN_32BIT_COUNTER(counter, value) do {\ + if ((value) > U32_MAX) \ + counter = cpu_to_be32(U32_MAX); \ + else \ + counter = cpu_to_be32(value); \ +} while (0) + struct mlx4_mad_rcv_buf { struct ib_grh grh; u8 payload[256]; @@ -806,10 +814,14 @@ static int ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num, static void edit_counter(struct mlx4_counter *cnt, struct ib_pma_portcounters *pma_cnt) { - pma_cnt->port_xmit_data = cpu_to_be32((be64_to_cpu(cnt->tx_bytes)>>2)); - pma_cnt->port_rcv_data = cpu_to_be32((be64_to_cpu(cnt->rx_bytes)>>2)); - pma_cnt->port_xmit_packets = cpu_to_be32(be64_to_cpu(cnt->tx_frames)); - pma_cnt->port_rcv_packets = cpu_to_be32(be64_to_cpu(cnt->rx_frames)); + ASSIGN_32BIT_COUNTER(pma_cnt->port_xmit_data, + (be64_to_cpu(cnt->tx_bytes) >> 2)); + ASSIGN_32BIT_COUNTER(pma_cnt->port_rcv_data, + (be64_to_cpu(cnt->rx_bytes) >> 2)); + ASSIGN_32BIT_COUNTER(pma_cnt->port_xmit_packets, + be64_to_cpu(cnt->tx_frames)); + ASSIGN_32BIT_COUNTER(pma_cnt->port_rcv_packets, + be64_to_cpu(cnt->rx_frames)); } static int iboe_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num, diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index ac6e2b710ea6..b972c0b41799 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -2697,8 +2697,12 @@ static void handle_bonded_port_state_event(struct work_struct *work) spin_lock_bh(&ibdev->iboe.lock); for (i = 0; i < MLX4_MAX_PORTS; ++i) { struct net_device *curr_netdev = ibdev->iboe.netdevs[i]; + enum ib_port_state curr_port_state; - enum ib_port_state curr_port_state = + if (!curr_netdev) + continue; + + curr_port_state = (netif_running(curr_netdev) && netif_carrier_ok(curr_netdev)) ? IB_PORT_ACTIVE : IB_PORT_DOWN; diff --git a/drivers/input/keyboard/tc3589x-keypad.c b/drivers/input/keyboard/tc3589x-keypad.c index 8ff612d160b0..563932500ff1 100644 --- a/drivers/input/keyboard/tc3589x-keypad.c +++ b/drivers/input/keyboard/tc3589x-keypad.c @@ -411,9 +411,9 @@ static int tc3589x_keypad_probe(struct platform_device *pdev) input_set_drvdata(input, keypad); - error = request_threaded_irq(irq, NULL, - tc3589x_keypad_irq, plat->irqtype, - "tc3589x-keypad", keypad); + error = request_threaded_irq(irq, NULL, tc3589x_keypad_irq, + plat->irqtype | IRQF_ONESHOT, + "tc3589x-keypad", keypad); if (error < 0) { dev_err(&pdev->dev, "Could not allocate irq %d,error %d\n", diff --git a/drivers/input/misc/mma8450.c b/drivers/input/misc/mma8450.c index 59d4dcddf6de..98228773a111 100644 --- a/drivers/input/misc/mma8450.c +++ b/drivers/input/misc/mma8450.c @@ -187,6 +187,7 @@ static int mma8450_probe(struct i2c_client *c, idev->private = m; idev->input->name = MMA8450_DRV_NAME; idev->input->id.bustype = BUS_I2C; + idev->input->dev.parent = &c->dev; idev->poll = mma8450_poll; idev->poll_interval = POLL_INTERVAL; idev->poll_interval_max = POLL_INTERVAL_MAX; diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c index d28726a0ef85..1bd15ebc01f2 100644 --- a/drivers/input/mouse/alps.c +++ b/drivers/input/mouse/alps.c @@ -2605,8 +2605,10 @@ int alps_detect(struct psmouse *psmouse, bool set_properties) return -ENOMEM; error = alps_identify(psmouse, priv); - if (error) + if (error) { + kfree(priv); return error; + } if (set_properties) { psmouse->vendor = "ALPS"; diff --git a/drivers/input/mouse/cyapa_gen3.c b/drivers/input/mouse/cyapa_gen3.c index 77e9d70a986b..1e2291c378fe 100644 --- a/drivers/input/mouse/cyapa_gen3.c +++ b/drivers/input/mouse/cyapa_gen3.c @@ -20,7 +20,7 @@ #include <linux/input/mt.h> #include <linux/module.h> #include <linux/slab.h> -#include <linux/unaligned/access_ok.h> +#include <asm/unaligned.h> #include "cyapa.h" diff --git a/drivers/input/mouse/cyapa_gen5.c b/drivers/input/mouse/cyapa_gen5.c index ddf5393a1180..5b611dd71e79 100644 --- a/drivers/input/mouse/cyapa_gen5.c +++ b/drivers/input/mouse/cyapa_gen5.c @@ -17,7 +17,7 @@ #include <linux/mutex.h> #include <linux/completion.h> #include <linux/slab.h> -#include <linux/unaligned/access_ok.h> +#include <asm/unaligned.h> #include <linux/crc-itu-t.h> #include "cyapa.h" @@ -1926,7 +1926,7 @@ static int cyapa_gen5_read_idac_data(struct cyapa *cyapa, electrodes_tx = cyapa->electrodes_x; max_element_cnt = ((cyapa->aligned_electrodes_rx + 7) & ~7u) * electrodes_tx; - } else if (idac_data_type == GEN5_RETRIEVE_SELF_CAP_PWC_DATA) { + } else { offset = 2; max_element_cnt = cyapa->electrodes_x + cyapa->electrodes_y; diff --git a/drivers/input/mouse/focaltech.c b/drivers/input/mouse/focaltech.c index 757f78a94aec..23d259416f2f 100644 --- a/drivers/input/mouse/focaltech.c +++ b/drivers/input/mouse/focaltech.c @@ -67,9 +67,6 @@ static void focaltech_reset(struct psmouse *psmouse) #define FOC_MAX_FINGERS 5 -#define FOC_MAX_X 2431 -#define FOC_MAX_Y 1663 - /* * Current state of a single finger on the touchpad. */ @@ -129,9 +126,17 @@ static void focaltech_report_state(struct psmouse *psmouse) input_mt_slot(dev, i); input_mt_report_slot_state(dev, MT_TOOL_FINGER, active); if (active) { - input_report_abs(dev, ABS_MT_POSITION_X, finger->x); + unsigned int clamped_x, clamped_y; + /* + * The touchpad might report invalid data, so we clamp + * the resulting values so that we do not confuse + * userspace. + */ + clamped_x = clamp(finger->x, 0U, priv->x_max); + clamped_y = clamp(finger->y, 0U, priv->y_max); + input_report_abs(dev, ABS_MT_POSITION_X, clamped_x); input_report_abs(dev, ABS_MT_POSITION_Y, - FOC_MAX_Y - finger->y); + priv->y_max - clamped_y); } } input_mt_report_pointer_emulation(dev, true); @@ -180,16 +185,6 @@ static void focaltech_process_abs_packet(struct psmouse *psmouse, state->pressed = (packet[0] >> 4) & 1; - /* - * packet[5] contains some kind of tool size in the most - * significant nibble. 0xff is a special value (latching) that - * signals a large contact area. - */ - if (packet[5] == 0xff) { - state->fingers[finger].valid = false; - return; - } - state->fingers[finger].x = ((packet[1] & 0xf) << 8) | packet[2]; state->fingers[finger].y = (packet[3] << 8) | packet[4]; state->fingers[finger].valid = true; @@ -381,6 +376,23 @@ static int focaltech_read_size(struct psmouse *psmouse) return 0; } + +void focaltech_set_resolution(struct psmouse *psmouse, unsigned int resolution) +{ + /* not supported yet */ +} + +static void focaltech_set_rate(struct psmouse *psmouse, unsigned int rate) +{ + /* not supported yet */ +} + +static void focaltech_set_scale(struct psmouse *psmouse, + enum psmouse_scale scale) +{ + /* not supported yet */ +} + int focaltech_init(struct psmouse *psmouse) { struct focaltech_data *priv; @@ -415,6 +427,14 @@ int focaltech_init(struct psmouse *psmouse) psmouse->cleanup = focaltech_reset; /* resync is not supported yet */ psmouse->resync_time = 0; + /* + * rate/resolution/scale changes are not supported yet, and + * the generic implementations of these functions seem to + * confuse some touchpads + */ + psmouse->set_resolution = focaltech_set_resolution; + psmouse->set_rate = focaltech_set_rate; + psmouse->set_scale = focaltech_set_scale; return 0; diff --git a/drivers/input/mouse/psmouse-base.c b/drivers/input/mouse/psmouse-base.c index 4ccd01d7a48d..8bc61237bc1b 100644 --- a/drivers/input/mouse/psmouse-base.c +++ b/drivers/input/mouse/psmouse-base.c @@ -454,6 +454,17 @@ static void psmouse_set_rate(struct psmouse *psmouse, unsigned int rate) } /* + * Here we set the mouse scaling. + */ + +static void psmouse_set_scale(struct psmouse *psmouse, enum psmouse_scale scale) +{ + ps2_command(&psmouse->ps2dev, NULL, + scale == PSMOUSE_SCALE21 ? PSMOUSE_CMD_SETSCALE21 : + PSMOUSE_CMD_SETSCALE11); +} + +/* * psmouse_poll() - default poll handler. Everyone except for ALPS uses it. */ @@ -689,6 +700,7 @@ static void psmouse_apply_defaults(struct psmouse *psmouse) psmouse->set_rate = psmouse_set_rate; psmouse->set_resolution = psmouse_set_resolution; + psmouse->set_scale = psmouse_set_scale; psmouse->poll = psmouse_poll; psmouse->protocol_handler = psmouse_process_byte; psmouse->pktsize = 3; @@ -1160,7 +1172,7 @@ static void psmouse_initialize(struct psmouse *psmouse) if (psmouse_max_proto != PSMOUSE_PS2) { psmouse->set_rate(psmouse, psmouse->rate); psmouse->set_resolution(psmouse, psmouse->resolution); - ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11); + psmouse->set_scale(psmouse, PSMOUSE_SCALE11); } } diff --git a/drivers/input/mouse/psmouse.h b/drivers/input/mouse/psmouse.h index c2ff137ecbdb..d02e1bdc9ae4 100644 --- a/drivers/input/mouse/psmouse.h +++ b/drivers/input/mouse/psmouse.h @@ -36,6 +36,11 @@ typedef enum { PSMOUSE_FULL_PACKET } psmouse_ret_t; +enum psmouse_scale { + PSMOUSE_SCALE11, + PSMOUSE_SCALE21 +}; + struct psmouse { void *private; struct input_dev *dev; @@ -67,6 +72,7 @@ struct psmouse { psmouse_ret_t (*protocol_handler)(struct psmouse *psmouse); void (*set_rate)(struct psmouse *psmouse, unsigned int rate); void (*set_resolution)(struct psmouse *psmouse, unsigned int resolution); + void (*set_scale)(struct psmouse *psmouse, enum psmouse_scale scale); int (*reconnect)(struct psmouse *psmouse); void (*disconnect)(struct psmouse *psmouse); diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c index f2cceb6493a0..dda605836546 100644 --- a/drivers/input/mouse/synaptics.c +++ b/drivers/input/mouse/synaptics.c @@ -67,9 +67,6 @@ #define X_MAX_POSITIVE 8176 #define Y_MAX_POSITIVE 8176 -/* maximum ABS_MT_POSITION displacement (in mm) */ -#define DMAX 10 - /***************************************************************************** * Stuff we need even when we do not want native Synaptics support ****************************************************************************/ @@ -123,32 +120,41 @@ void synaptics_reset(struct psmouse *psmouse) static bool cr48_profile_sensor; +#define ANY_BOARD_ID 0 struct min_max_quirk { const char * const *pnp_ids; + struct { + unsigned long int min, max; + } board_id; int x_min, x_max, y_min, y_max; }; static const struct min_max_quirk min_max_pnpid_table[] = { { (const char * const []){"LEN0033", NULL}, + {ANY_BOARD_ID, ANY_BOARD_ID}, 1024, 5052, 2258, 4832 }, { - (const char * const []){"LEN0035", "LEN0042", NULL}, + (const char * const []){"LEN0042", NULL}, + {ANY_BOARD_ID, ANY_BOARD_ID}, 1232, 5710, 1156, 4696 }, { (const char * const []){"LEN0034", "LEN0036", "LEN0037", "LEN0039", "LEN2002", "LEN2004", NULL}, + {ANY_BOARD_ID, 2961}, 1024, 5112, 2024, 4832 }, { (const char * const []){"LEN2001", NULL}, + {ANY_BOARD_ID, ANY_BOARD_ID}, 1024, 5022, 2508, 4832 }, { (const char * const []){"LEN2006", NULL}, + {ANY_BOARD_ID, ANY_BOARD_ID}, 1264, 5675, 1171, 4688 }, { } @@ -175,9 +181,7 @@ static const char * const topbuttonpad_pnp_ids[] = { "LEN0041", "LEN0042", /* Yoga */ "LEN0045", - "LEN0046", "LEN0047", - "LEN0048", "LEN0049", "LEN2000", "LEN2001", /* Edge E431 */ @@ -235,18 +239,39 @@ static int synaptics_model_id(struct psmouse *psmouse) return 0; } +static int synaptics_more_extended_queries(struct psmouse *psmouse) +{ + struct synaptics_data *priv = psmouse->private; + unsigned char buf[3]; + + if (synaptics_send_cmd(psmouse, SYN_QUE_MEXT_CAPAB_10, buf)) + return -1; + + priv->ext_cap_10 = (buf[0]<<16) | (buf[1]<<8) | buf[2]; + + return 0; +} + /* - * Read the board id from the touchpad + * Read the board id and the "More Extended Queries" from the touchpad * The board id is encoded in the "QUERY MODES" response */ -static int synaptics_board_id(struct psmouse *psmouse) +static int synaptics_query_modes(struct psmouse *psmouse) { struct synaptics_data *priv = psmouse->private; unsigned char bid[3]; + /* firmwares prior 7.5 have no board_id encoded */ + if (SYN_ID_FULL(priv->identity) < 0x705) + return 0; + if (synaptics_send_cmd(psmouse, SYN_QUE_MODES, bid)) return -1; priv->board_id = ((bid[0] & 0xfc) << 6) | bid[1]; + + if (SYN_MEXT_CAP_BIT(bid[0])) + return synaptics_more_extended_queries(psmouse); + return 0; } @@ -346,7 +371,6 @@ static int synaptics_resolution(struct psmouse *psmouse) { struct synaptics_data *priv = psmouse->private; unsigned char resp[3]; - int i; if (SYN_ID_MAJOR(priv->identity) < 4) return 0; @@ -358,17 +382,6 @@ static int synaptics_resolution(struct psmouse *psmouse) } } - for (i = 0; min_max_pnpid_table[i].pnp_ids; i++) { - if (psmouse_matches_pnp_id(psmouse, - min_max_pnpid_table[i].pnp_ids)) { - priv->x_min = min_max_pnpid_table[i].x_min; - priv->x_max = min_max_pnpid_table[i].x_max; - priv->y_min = min_max_pnpid_table[i].y_min; - priv->y_max = min_max_pnpid_table[i].y_max; - return 0; - } - } - if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 5 && SYN_CAP_MAX_DIMENSIONS(priv->ext_cap_0c)) { if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_MAX_COORDS, resp)) { @@ -377,23 +390,69 @@ static int synaptics_resolution(struct psmouse *psmouse) } else { priv->x_max = (resp[0] << 5) | ((resp[1] & 0x0f) << 1); priv->y_max = (resp[2] << 5) | ((resp[1] & 0xf0) >> 3); + psmouse_info(psmouse, + "queried max coordinates: x [..%d], y [..%d]\n", + priv->x_max, priv->y_max); } } - if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 7 && - SYN_CAP_MIN_DIMENSIONS(priv->ext_cap_0c)) { + if (SYN_CAP_MIN_DIMENSIONS(priv->ext_cap_0c) && + (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 7 || + /* + * Firmware v8.1 does not report proper number of extended + * capabilities, but has been proven to report correct min + * coordinates. + */ + SYN_ID_FULL(priv->identity) == 0x801)) { if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_MIN_COORDS, resp)) { psmouse_warn(psmouse, "device claims to have min coordinates query, but I'm not able to read it.\n"); } else { priv->x_min = (resp[0] << 5) | ((resp[1] & 0x0f) << 1); priv->y_min = (resp[2] << 5) | ((resp[1] & 0xf0) >> 3); + psmouse_info(psmouse, + "queried min coordinates: x [%d..], y [%d..]\n", + priv->x_min, priv->y_min); } } return 0; } +/* + * Apply quirk(s) if the hardware matches + */ + +static void synaptics_apply_quirks(struct psmouse *psmouse) +{ + struct synaptics_data *priv = psmouse->private; + int i; + + for (i = 0; min_max_pnpid_table[i].pnp_ids; i++) { + if (!psmouse_matches_pnp_id(psmouse, + min_max_pnpid_table[i].pnp_ids)) + continue; + + if (min_max_pnpid_table[i].board_id.min != ANY_BOARD_ID && + priv->board_id < min_max_pnpid_table[i].board_id.min) + continue; + + if (min_max_pnpid_table[i].board_id.max != ANY_BOARD_ID && + priv->board_id > min_max_pnpid_table[i].board_id.max) + continue; + + priv->x_min = min_max_pnpid_table[i].x_min; + priv->x_max = min_max_pnpid_table[i].x_max; + priv->y_min = min_max_pnpid_table[i].y_min; + priv->y_max = min_max_pnpid_table[i].y_max; + psmouse_info(psmouse, + "quirked min/max coordinates: x [%d..%d], y [%d..%d]\n", + priv->x_min, priv->x_max, + priv->y_min, priv->y_max); + break; + } +} + static int synaptics_query_hardware(struct psmouse *psmouse) { if (synaptics_identify(psmouse)) @@ -402,13 +461,15 @@ static int synaptics_query_hardware(struct psmouse *psmouse) return -1; if (synaptics_firmware_id(psmouse)) return -1; - if (synaptics_board_id(psmouse)) + if (synaptics_query_modes(psmouse)) return -1; if (synaptics_capability(psmouse)) return -1; if (synaptics_resolution(psmouse)) return -1; + synaptics_apply_quirks(psmouse); + return 0; } @@ -516,18 +577,22 @@ static int synaptics_is_pt_packet(unsigned char *buf) return (buf[0] & 0xFC) == 0x84 && (buf[3] & 0xCC) == 0xC4; } -static void synaptics_pass_pt_packet(struct serio *ptport, unsigned char *packet) +static void synaptics_pass_pt_packet(struct psmouse *psmouse, + struct serio *ptport, + unsigned char *packet) { + struct synaptics_data *priv = psmouse->private; struct psmouse *child = serio_get_drvdata(ptport); if (child && child->state == PSMOUSE_ACTIVATED) { - serio_interrupt(ptport, packet[1], 0); + serio_interrupt(ptport, packet[1] | priv->pt_buttons, 0); serio_interrupt(ptport, packet[4], 0); serio_interrupt(ptport, packet[5], 0); if (child->pktsize == 4) serio_interrupt(ptport, packet[2], 0); - } else + } else { serio_interrupt(ptport, packet[1], 0); + } } static void synaptics_pt_activate(struct psmouse *psmouse) @@ -605,6 +670,18 @@ static void synaptics_parse_agm(const unsigned char buf[], } } +static void synaptics_parse_ext_buttons(const unsigned char buf[], + struct synaptics_data *priv, + struct synaptics_hw_state *hw) +{ + unsigned int ext_bits = + (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) + 1) >> 1; + unsigned int ext_mask = GENMASK(ext_bits - 1, 0); + + hw->ext_buttons = buf[4] & ext_mask; + hw->ext_buttons |= (buf[5] & ext_mask) << ext_bits; +} + static bool is_forcepad; static int synaptics_parse_hw_state(const unsigned char buf[], @@ -691,28 +768,9 @@ static int synaptics_parse_hw_state(const unsigned char buf[], hw->down = ((buf[0] ^ buf[3]) & 0x02) ? 1 : 0; } - if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) && + if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) > 0 && ((buf[0] ^ buf[3]) & 0x02)) { - switch (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) & ~0x01) { - default: - /* - * if nExtBtn is greater than 8 it should be - * considered invalid and treated as 0 - */ - break; - case 8: - hw->ext_buttons |= ((buf[5] & 0x08)) ? 0x80 : 0; - hw->ext_buttons |= ((buf[4] & 0x08)) ? 0x40 : 0; - case 6: - hw->ext_buttons |= ((buf[5] & 0x04)) ? 0x20 : 0; - hw->ext_buttons |= ((buf[4] & 0x04)) ? 0x10 : 0; - case 4: - hw->ext_buttons |= ((buf[5] & 0x02)) ? 0x08 : 0; - hw->ext_buttons |= ((buf[4] & 0x02)) ? 0x04 : 0; - case 2: - hw->ext_buttons |= ((buf[5] & 0x01)) ? 0x02 : 0; - hw->ext_buttons |= ((buf[4] & 0x01)) ? 0x01 : 0; - } + synaptics_parse_ext_buttons(buf, priv, hw); } } else { hw->x = (((buf[1] & 0x1f) << 8) | buf[2]); @@ -774,12 +832,54 @@ static void synaptics_report_semi_mt_data(struct input_dev *dev, } } +static void synaptics_report_ext_buttons(struct psmouse *psmouse, + const struct synaptics_hw_state *hw) +{ + struct input_dev *dev = psmouse->dev; + struct synaptics_data *priv = psmouse->private; + int ext_bits = (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) + 1) >> 1; + char buf[6] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}; + int i; + + if (!SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap)) + return; + + /* Bug in FW 8.1, buttons are reported only when ExtBit is 1 */ + if (SYN_ID_FULL(priv->identity) == 0x801 && + !((psmouse->packet[0] ^ psmouse->packet[3]) & 0x02)) + return; + + if (!SYN_CAP_EXT_BUTTONS_STICK(priv->ext_cap_10)) { + for (i = 0; i < ext_bits; i++) { + input_report_key(dev, BTN_0 + 2 * i, + hw->ext_buttons & (1 << i)); + input_report_key(dev, BTN_1 + 2 * i, + hw->ext_buttons & (1 << (i + ext_bits))); + } + return; + } + + /* + * This generation of touchpads has the trackstick buttons + * physically wired to the touchpad. Re-route them through + * the pass-through interface. + */ + if (!priv->pt_port) + return; + + /* The trackstick expects at most 3 buttons */ + priv->pt_buttons = SYN_CAP_EXT_BUTTON_STICK_L(hw->ext_buttons) | + SYN_CAP_EXT_BUTTON_STICK_R(hw->ext_buttons) << 1 | + SYN_CAP_EXT_BUTTON_STICK_M(hw->ext_buttons) << 2; + + synaptics_pass_pt_packet(psmouse, priv->pt_port, buf); +} + static void synaptics_report_buttons(struct psmouse *psmouse, const struct synaptics_hw_state *hw) { struct input_dev *dev = psmouse->dev; struct synaptics_data *priv = psmouse->private; - int i; input_report_key(dev, BTN_LEFT, hw->left); input_report_key(dev, BTN_RIGHT, hw->right); @@ -792,8 +892,7 @@ static void synaptics_report_buttons(struct psmouse *psmouse, input_report_key(dev, BTN_BACK, hw->down); } - for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++) - input_report_key(dev, BTN_0 + i, hw->ext_buttons & (1 << i)); + synaptics_report_ext_buttons(psmouse, hw); } static void synaptics_report_mt_data(struct psmouse *psmouse, @@ -813,7 +912,7 @@ static void synaptics_report_mt_data(struct psmouse *psmouse, pos[i].y = synaptics_invert_y(hw[i]->y); } - input_mt_assign_slots(dev, slot, pos, nsemi, DMAX * priv->x_res); + input_mt_assign_slots(dev, slot, pos, nsemi, 0); for (i = 0; i < nsemi; i++) { input_mt_slot(dev, slot[i]); @@ -1014,7 +1113,8 @@ static psmouse_ret_t synaptics_process_byte(struct psmouse *psmouse) if (SYN_CAP_PASS_THROUGH(priv->capabilities) && synaptics_is_pt_packet(psmouse->packet)) { if (priv->pt_port) - synaptics_pass_pt_packet(priv->pt_port, psmouse->packet); + synaptics_pass_pt_packet(psmouse, priv->pt_port, + psmouse->packet); } else synaptics_process_packet(psmouse); @@ -1116,8 +1216,9 @@ static void set_input_params(struct psmouse *psmouse, __set_bit(BTN_BACK, dev->keybit); } - for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++) - __set_bit(BTN_0 + i, dev->keybit); + if (!SYN_CAP_EXT_BUTTONS_STICK(priv->ext_cap_10)) + for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++) + __set_bit(BTN_0 + i, dev->keybit); __clear_bit(EV_REL, dev->evbit); __clear_bit(REL_X, dev->relbit); @@ -1125,7 +1226,8 @@ static void set_input_params(struct psmouse *psmouse, if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) { __set_bit(INPUT_PROP_BUTTONPAD, dev->propbit); - if (psmouse_matches_pnp_id(psmouse, topbuttonpad_pnp_ids)) + if (psmouse_matches_pnp_id(psmouse, topbuttonpad_pnp_ids) && + !SYN_CAP_EXT_BUTTONS_STICK(priv->ext_cap_10)) __set_bit(INPUT_PROP_TOPBUTTONPAD, dev->propbit); /* Clickpads report only left button */ __clear_bit(BTN_RIGHT, dev->keybit); diff --git a/drivers/input/mouse/synaptics.h b/drivers/input/mouse/synaptics.h index aedc3299b14e..ee4bd0d12b26 100644 --- a/drivers/input/mouse/synaptics.h +++ b/drivers/input/mouse/synaptics.h @@ -22,6 +22,7 @@ #define SYN_QUE_EXT_CAPAB_0C 0x0c #define SYN_QUE_EXT_MAX_COORDS 0x0d #define SYN_QUE_EXT_MIN_COORDS 0x0f +#define SYN_QUE_MEXT_CAPAB_10 0x10 /* synatics modes */ #define SYN_BIT_ABSOLUTE_MODE (1 << 7) @@ -53,6 +54,7 @@ #define SYN_EXT_CAP_REQUESTS(c) (((c) & 0x700000) >> 20) #define SYN_CAP_MULTI_BUTTON_NO(ec) (((ec) & 0x00f000) >> 12) #define SYN_CAP_PRODUCT_ID(ec) (((ec) & 0xff0000) >> 16) +#define SYN_MEXT_CAP_BIT(m) ((m) & (1 << 1)) /* * The following describes response for the 0x0c query. @@ -89,6 +91,30 @@ #define SYN_CAP_REDUCED_FILTERING(ex0c) ((ex0c) & 0x000400) #define SYN_CAP_IMAGE_SENSOR(ex0c) ((ex0c) & 0x000800) +/* + * The following descibes response for the 0x10 query. + * + * byte mask name meaning + * ---- ---- ------- ------------ + * 1 0x01 ext buttons are stick buttons exported in the extended + * capability are actually meant to be used + * by the tracktick (pass-through). + * 1 0x02 SecurePad the touchpad is a SecurePad, so it + * contains a built-in fingerprint reader. + * 1 0xe0 more ext count how many more extented queries are + * available after this one. + * 2 0xff SecurePad width the width of the SecurePad fingerprint + * reader. + * 3 0xff SecurePad height the height of the SecurePad fingerprint + * reader. + */ +#define SYN_CAP_EXT_BUTTONS_STICK(ex10) ((ex10) & 0x010000) +#define SYN_CAP_SECUREPAD(ex10) ((ex10) & 0x020000) + +#define SYN_CAP_EXT_BUTTON_STICK_L(eb) (!!((eb) & 0x01)) +#define SYN_CAP_EXT_BUTTON_STICK_M(eb) (!!((eb) & 0x02)) +#define SYN_CAP_EXT_BUTTON_STICK_R(eb) (!!((eb) & 0x04)) + /* synaptics modes query bits */ #define SYN_MODE_ABSOLUTE(m) ((m) & (1 << 7)) #define SYN_MODE_RATE(m) ((m) & (1 << 6)) @@ -143,6 +169,7 @@ struct synaptics_data { unsigned long int capabilities; /* Capabilities */ unsigned long int ext_cap; /* Extended Capabilities */ unsigned long int ext_cap_0c; /* Ext Caps from 0x0c query */ + unsigned long int ext_cap_10; /* Ext Caps from 0x10 query */ unsigned long int identity; /* Identification */ unsigned int x_res, y_res; /* X/Y resolution in units/mm */ unsigned int x_max, y_max; /* Max coordinates (from FW) */ @@ -156,6 +183,7 @@ struct synaptics_data { bool disable_gesture; /* disable gestures */ struct serio *pt_port; /* Pass-through serio port */ + unsigned char pt_buttons; /* Pass-through buttons */ /* * Last received Advanced Gesture Mode (AGM) packet. An AGM packet diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig index 58917525126e..6261fd6d7c3c 100644 --- a/drivers/input/touchscreen/Kconfig +++ b/drivers/input/touchscreen/Kconfig @@ -943,6 +943,7 @@ config TOUCHSCREEN_SUN4I tristate "Allwinner sun4i resistive touchscreen controller support" depends on ARCH_SUNXI || COMPILE_TEST depends on HWMON + depends on THERMAL || !THERMAL_OF help This selects support for the resistive touchscreen controller found on Allwinner sunxi SoCs. diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig index baa0d9786f50..1ae4e547b419 100644 --- a/drivers/iommu/Kconfig +++ b/drivers/iommu/Kconfig @@ -23,6 +23,7 @@ config IOMMU_IO_PGTABLE config IOMMU_IO_PGTABLE_LPAE bool "ARMv7/v8 Long Descriptor Format" select IOMMU_IO_PGTABLE + depends on ARM || ARM64 || COMPILE_TEST help Enable support for the ARM long descriptor pagetable format. This allocator supports 4K/2M/1G, 16K/32M and 64K/512M page @@ -63,6 +64,7 @@ config MSM_IOMMU bool "MSM IOMMU Support" depends on ARM depends on ARCH_MSM8X60 || ARCH_MSM8960 || COMPILE_TEST + depends on BROKEN select IOMMU_API help Support for the IOMMUs found on certain Qualcomm SOCs. diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c index 7ce52737c7a1..dc14fec4ede1 100644 --- a/drivers/iommu/exynos-iommu.c +++ b/drivers/iommu/exynos-iommu.c @@ -1186,8 +1186,15 @@ static const struct iommu_ops exynos_iommu_ops = { static int __init exynos_iommu_init(void) { + struct device_node *np; int ret; + np = of_find_matching_node(NULL, sysmmu_of_match); + if (!np) + return 0; + + of_node_put(np); + lv2table_kmem_cache = kmem_cache_create("exynos-iommu-lv2table", LV2TABLE_SIZE, LV2TABLE_SIZE, 0, NULL); if (!lv2table_kmem_cache) { diff --git a/drivers/iommu/io-pgtable-arm.c b/drivers/iommu/io-pgtable-arm.c index 5a500edf00cc..b610a8dee238 100644 --- a/drivers/iommu/io-pgtable-arm.c +++ b/drivers/iommu/io-pgtable-arm.c @@ -56,7 +56,8 @@ ((((d)->levels - ((l) - ARM_LPAE_START_LVL(d) + 1)) \ * (d)->bits_per_level) + (d)->pg_shift) -#define ARM_LPAE_PAGES_PER_PGD(d) ((d)->pgd_size >> (d)->pg_shift) +#define ARM_LPAE_PAGES_PER_PGD(d) \ + DIV_ROUND_UP((d)->pgd_size, 1UL << (d)->pg_shift) /* * Calculate the index at level l used to map virtual address a using the @@ -66,7 +67,7 @@ ((l) == ARM_LPAE_START_LVL(d) ? ilog2(ARM_LPAE_PAGES_PER_PGD(d)) : 0) #define ARM_LPAE_LVL_IDX(a,l,d) \ - (((a) >> ARM_LPAE_LVL_SHIFT(l,d)) & \ + (((u64)(a) >> ARM_LPAE_LVL_SHIFT(l,d)) & \ ((1 << ((d)->bits_per_level + ARM_LPAE_PGD_IDX(l,d))) - 1)) /* Calculate the block/page mapping size at level l for pagetable in d. */ diff --git a/drivers/iommu/omap-iommu.c b/drivers/iommu/omap-iommu.c index f59f857b702e..a4ba851825c2 100644 --- a/drivers/iommu/omap-iommu.c +++ b/drivers/iommu/omap-iommu.c @@ -1376,6 +1376,13 @@ static int __init omap_iommu_init(void) struct kmem_cache *p; const unsigned long flags = SLAB_HWCACHE_ALIGN; size_t align = 1 << 10; /* L2 pagetable alignement */ + struct device_node *np; + + np = of_find_matching_node(NULL, omap_iommu_of_match); + if (!np) + return 0; + + of_node_put(np); p = kmem_cache_create("iopte_cache", IOPTE_TABLE_SIZE, align, flags, iopte_cachep_ctor); diff --git a/drivers/iommu/rockchip-iommu.c b/drivers/iommu/rockchip-iommu.c index 6a8b1ec4a48a..9f74fddcd304 100644 --- a/drivers/iommu/rockchip-iommu.c +++ b/drivers/iommu/rockchip-iommu.c @@ -1015,8 +1015,15 @@ static struct platform_driver rk_iommu_driver = { static int __init rk_iommu_init(void) { + struct device_node *np; int ret; + np = of_find_matching_node(NULL, rk_iommu_dt_ids); + if (!np) + return 0; + + of_node_put(np); + ret = bus_set_iommu(&platform_bus_type, &rk_iommu_ops); if (ret) return ret; diff --git a/drivers/irqchip/irq-armada-370-xp.c b/drivers/irqchip/irq-armada-370-xp.c index 463c235acbdc..4387dae14e45 100644 --- a/drivers/irqchip/irq-armada-370-xp.c +++ b/drivers/irqchip/irq-armada-370-xp.c @@ -69,6 +69,7 @@ static void __iomem *per_cpu_int_base; static void __iomem *main_int_base; static struct irq_domain *armada_370_xp_mpic_domain; static u32 doorbell_mask_reg; +static int parent_irq; #ifdef CONFIG_PCI_MSI static struct irq_domain *armada_370_xp_msi_domain; static DECLARE_BITMAP(msi_used, PCI_MSI_DOORBELL_NR); @@ -356,6 +357,7 @@ static int armada_xp_mpic_secondary_init(struct notifier_block *nfb, { if (action == CPU_STARTING || action == CPU_STARTING_FROZEN) armada_xp_mpic_smp_cpu_init(); + return NOTIFY_OK; } @@ -364,6 +366,20 @@ static struct notifier_block armada_370_xp_mpic_cpu_notifier = { .priority = 100, }; +static int mpic_cascaded_secondary_init(struct notifier_block *nfb, + unsigned long action, void *hcpu) +{ + if (action == CPU_STARTING || action == CPU_STARTING_FROZEN) + enable_percpu_irq(parent_irq, IRQ_TYPE_NONE); + + return NOTIFY_OK; +} + +static struct notifier_block mpic_cascaded_cpu_notifier = { + .notifier_call = mpic_cascaded_secondary_init, + .priority = 100, +}; + #endif /* CONFIG_SMP */ static struct irq_domain_ops armada_370_xp_mpic_irq_ops = { @@ -539,7 +555,7 @@ static int __init armada_370_xp_mpic_of_init(struct device_node *node, struct device_node *parent) { struct resource main_int_res, per_cpu_int_res; - int parent_irq, nr_irqs, i; + int nr_irqs, i; u32 control; BUG_ON(of_address_to_resource(node, 0, &main_int_res)); @@ -587,6 +603,9 @@ static int __init armada_370_xp_mpic_of_init(struct device_node *node, register_cpu_notifier(&armada_370_xp_mpic_cpu_notifier); #endif } else { +#ifdef CONFIG_SMP + register_cpu_notifier(&mpic_cascaded_cpu_notifier); +#endif irq_set_chained_handler(parent_irq, armada_370_xp_mpic_handle_cascade_irq); } diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c index d8996bdf0f61..596b0a9eee99 100644 --- a/drivers/irqchip/irq-gic-v3-its.c +++ b/drivers/irqchip/irq-gic-v3-its.c @@ -416,13 +416,14 @@ static void its_send_single_command(struct its_node *its, { struct its_cmd_block *cmd, *sync_cmd, *next_cmd; struct its_collection *sync_col; + unsigned long flags; - raw_spin_lock(&its->lock); + raw_spin_lock_irqsave(&its->lock, flags); cmd = its_allocate_entry(its); if (!cmd) { /* We're soooooo screewed... */ pr_err_ratelimited("ITS can't allocate, dropping command\n"); - raw_spin_unlock(&its->lock); + raw_spin_unlock_irqrestore(&its->lock, flags); return; } sync_col = builder(cmd, desc); @@ -442,7 +443,7 @@ static void its_send_single_command(struct its_node *its, post: next_cmd = its_post_commands(its); - raw_spin_unlock(&its->lock); + raw_spin_unlock_irqrestore(&its->lock, flags); its_wait_for_range_completion(its, cmd, next_cmd); } @@ -799,21 +800,43 @@ static int its_alloc_tables(struct its_node *its) { int err; int i; - int psz = PAGE_SIZE; + int psz = SZ_64K; u64 shr = GITS_BASER_InnerShareable; for (i = 0; i < GITS_BASER_NR_REGS; i++) { u64 val = readq_relaxed(its->base + GITS_BASER + i * 8); u64 type = GITS_BASER_TYPE(val); u64 entry_size = GITS_BASER_ENTRY_SIZE(val); + int order = get_order(psz); + int alloc_size; u64 tmp; void *base; if (type == GITS_BASER_TYPE_NONE) continue; - /* We're lazy and only allocate a single page for now */ - base = (void *)get_zeroed_page(GFP_KERNEL); + /* + * Allocate as many entries as required to fit the + * range of device IDs that the ITS can grok... The ID + * space being incredibly sparse, this results in a + * massive waste of memory. + * + * For other tables, only allocate a single page. + */ + if (type == GITS_BASER_TYPE_DEVICE) { + u64 typer = readq_relaxed(its->base + GITS_TYPER); + u32 ids = GITS_TYPER_DEVBITS(typer); + + order = get_order((1UL << ids) * entry_size); + if (order >= MAX_ORDER) { + order = MAX_ORDER - 1; + pr_warn("%s: Device Table too large, reduce its page order to %u\n", + its->msi_chip.of_node->full_name, order); + } + } + + alloc_size = (1 << order) * PAGE_SIZE; + base = (void *)__get_free_pages(GFP_KERNEL | __GFP_ZERO, order); if (!base) { err = -ENOMEM; goto out_free; @@ -841,7 +864,7 @@ retry_baser: break; } - val |= (PAGE_SIZE / psz) - 1; + val |= (alloc_size / psz) - 1; writeq_relaxed(val, its->base + GITS_BASER + i * 8); tmp = readq_relaxed(its->base + GITS_BASER + i * 8); @@ -882,7 +905,7 @@ retry_baser: } pr_info("ITS: allocated %d %s @%lx (psz %dK, shr %d)\n", - (int)(PAGE_SIZE / entry_size), + (int)(alloc_size / entry_size), its_base_type_string[type], (unsigned long)virt_to_phys(base), psz / SZ_1K, (int)shr >> GITS_BASER_SHAREABILITY_SHIFT); @@ -1020,8 +1043,9 @@ static void its_cpu_init_collection(void) static struct its_device *its_find_device(struct its_node *its, u32 dev_id) { struct its_device *its_dev = NULL, *tmp; + unsigned long flags; - raw_spin_lock(&its->lock); + raw_spin_lock_irqsave(&its->lock, flags); list_for_each_entry(tmp, &its->its_device_list, entry) { if (tmp->device_id == dev_id) { @@ -1030,7 +1054,7 @@ static struct its_device *its_find_device(struct its_node *its, u32 dev_id) } } - raw_spin_unlock(&its->lock); + raw_spin_unlock_irqrestore(&its->lock, flags); return its_dev; } @@ -1040,6 +1064,7 @@ static struct its_device *its_create_device(struct its_node *its, u32 dev_id, { struct its_device *dev; unsigned long *lpi_map; + unsigned long flags; void *itt; int lpi_base; int nr_lpis; @@ -1056,7 +1081,7 @@ static struct its_device *its_create_device(struct its_node *its, u32 dev_id, nr_ites = max(2UL, roundup_pow_of_two(nvecs)); sz = nr_ites * its->ite_size; sz = max(sz, ITS_ITT_ALIGN) + ITS_ITT_ALIGN - 1; - itt = kmalloc(sz, GFP_KERNEL); + itt = kzalloc(sz, GFP_KERNEL); lpi_map = its_lpi_alloc_chunks(nvecs, &lpi_base, &nr_lpis); if (!dev || !itt || !lpi_map) { @@ -1075,9 +1100,9 @@ static struct its_device *its_create_device(struct its_node *its, u32 dev_id, dev->device_id = dev_id; INIT_LIST_HEAD(&dev->entry); - raw_spin_lock(&its->lock); + raw_spin_lock_irqsave(&its->lock, flags); list_add(&dev->entry, &its->its_device_list); - raw_spin_unlock(&its->lock); + raw_spin_unlock_irqrestore(&its->lock, flags); /* Bind the device to the first possible CPU */ cpu = cpumask_first(cpu_online_mask); @@ -1091,9 +1116,11 @@ static struct its_device *its_create_device(struct its_node *its, u32 dev_id, static void its_free_device(struct its_device *its_dev) { - raw_spin_lock(&its_dev->its->lock); + unsigned long flags; + + raw_spin_lock_irqsave(&its_dev->its->lock, flags); list_del(&its_dev->entry); - raw_spin_unlock(&its_dev->its->lock); + raw_spin_unlock_irqrestore(&its_dev->its->lock, flags); kfree(its_dev->itt); kfree(its_dev); } @@ -1112,31 +1139,69 @@ static int its_alloc_device_irq(struct its_device *dev, irq_hw_number_t *hwirq) return 0; } +struct its_pci_alias { + struct pci_dev *pdev; + u32 dev_id; + u32 count; +}; + +static int its_pci_msi_vec_count(struct pci_dev *pdev) +{ + int msi, msix; + + msi = max(pci_msi_vec_count(pdev), 0); + msix = max(pci_msix_vec_count(pdev), 0); + + return max(msi, msix); +} + +static int its_get_pci_alias(struct pci_dev *pdev, u16 alias, void *data) +{ + struct its_pci_alias *dev_alias = data; + + dev_alias->dev_id = alias; + if (pdev != dev_alias->pdev) + dev_alias->count += its_pci_msi_vec_count(dev_alias->pdev); + + return 0; +} + static int its_msi_prepare(struct irq_domain *domain, struct device *dev, int nvec, msi_alloc_info_t *info) { struct pci_dev *pdev; struct its_node *its; - u32 dev_id; struct its_device *its_dev; + struct its_pci_alias dev_alias; if (!dev_is_pci(dev)) return -EINVAL; pdev = to_pci_dev(dev); - dev_id = PCI_DEVID(pdev->bus->number, pdev->devfn); + dev_alias.pdev = pdev; + dev_alias.count = nvec; + + pci_for_each_dma_alias(pdev, its_get_pci_alias, &dev_alias); its = domain->parent->host_data; - its_dev = its_find_device(its, dev_id); - if (WARN_ON(its_dev)) - return -EINVAL; + its_dev = its_find_device(its, dev_alias.dev_id); + if (its_dev) { + /* + * We already have seen this ID, probably through + * another alias (PCI bridge of some sort). No need to + * create the device. + */ + dev_dbg(dev, "Reusing ITT for devID %x\n", dev_alias.dev_id); + goto out; + } - its_dev = its_create_device(its, dev_id, nvec); + its_dev = its_create_device(its, dev_alias.dev_id, dev_alias.count); if (!its_dev) return -ENOMEM; - dev_dbg(&pdev->dev, "ITT %d entries, %d bits\n", nvec, ilog2(nvec)); - + dev_dbg(&pdev->dev, "ITT %d entries, %d bits\n", + dev_alias.count, ilog2(dev_alias.count)); +out: info->scratchpad[0].ptr = its_dev; info->scratchpad[1].ptr = dev; return 0; @@ -1255,6 +1320,34 @@ static const struct irq_domain_ops its_domain_ops = { .deactivate = its_irq_domain_deactivate, }; +static int its_force_quiescent(void __iomem *base) +{ + u32 count = 1000000; /* 1s */ + u32 val; + + val = readl_relaxed(base + GITS_CTLR); + if (val & GITS_CTLR_QUIESCENT) + return 0; + + /* Disable the generation of all interrupts to this ITS */ + val &= ~GITS_CTLR_ENABLE; + writel_relaxed(val, base + GITS_CTLR); + + /* Poll GITS_CTLR and wait until ITS becomes quiescent */ + while (1) { + val = readl_relaxed(base + GITS_CTLR); + if (val & GITS_CTLR_QUIESCENT) + return 0; + + count--; + if (!count) + return -EBUSY; + + cpu_relax(); + udelay(1); + } +} + static int its_probe(struct device_node *node, struct irq_domain *parent) { struct resource res; @@ -1283,6 +1376,13 @@ static int its_probe(struct device_node *node, struct irq_domain *parent) goto out_unmap; } + err = its_force_quiescent(its_base); + if (err) { + pr_warn("%s: failed to quiesce, giving up\n", + node->full_name); + goto out_unmap; + } + pr_info("ITS: %s\n", node->full_name); its = kzalloc(sizeof(*its), GFP_KERNEL); @@ -1323,7 +1423,7 @@ static int its_probe(struct device_node *node, struct irq_domain *parent) writeq_relaxed(baser, its->base + GITS_CBASER); tmp = readq_relaxed(its->base + GITS_CBASER); writeq_relaxed(0, its->base + GITS_CWRITER); - writel_relaxed(1, its->base + GITS_CTLR); + writel_relaxed(GITS_CTLR_ENABLE, its->base + GITS_CTLR); if ((tmp ^ baser) & GITS_BASER_SHAREABILITY_MASK) { pr_info("ITS: using cache flushing for cmd queue\n"); @@ -1382,12 +1482,11 @@ static bool gic_rdists_supports_plpis(void) int its_cpu_init(void) { - if (!gic_rdists_supports_plpis()) { - pr_info("CPU%d: LPIs not supported\n", smp_processor_id()); - return -ENXIO; - } - if (!list_empty(&its_nodes)) { + if (!gic_rdists_supports_plpis()) { + pr_info("CPU%d: LPIs not supported\n", smp_processor_id()); + return -ENXIO; + } its_cpu_init_lpis(); its_cpu_init_collection(); } diff --git a/drivers/irqchip/irq-gic-v3.c b/drivers/irqchip/irq-gic-v3.c index 1c6dea2fbc34..fd8850def1b8 100644 --- a/drivers/irqchip/irq-gic-v3.c +++ b/drivers/irqchip/irq-gic-v3.c @@ -466,7 +466,7 @@ static u16 gic_compute_target_list(int *base_cpu, const struct cpumask *mask, tlist |= 1 << (mpidr & 0xf); cpu = cpumask_next(cpu, mask); - if (cpu == nr_cpu_ids) + if (cpu >= nr_cpu_ids) goto out; mpidr = cpu_logical_map(cpu); diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c index 4634cf7d0ec3..471e1cdc1933 100644 --- a/drivers/irqchip/irq-gic.c +++ b/drivers/irqchip/irq-gic.c @@ -154,23 +154,25 @@ static inline unsigned int gic_irq(struct irq_data *d) static void gic_mask_irq(struct irq_data *d) { u32 mask = 1 << (gic_irq(d) % 32); + unsigned long flags; - raw_spin_lock(&irq_controller_lock); + raw_spin_lock_irqsave(&irq_controller_lock, flags); writel_relaxed(mask, gic_dist_base(d) + GIC_DIST_ENABLE_CLEAR + (gic_irq(d) / 32) * 4); if (gic_arch_extn.irq_mask) gic_arch_extn.irq_mask(d); - raw_spin_unlock(&irq_controller_lock); + raw_spin_unlock_irqrestore(&irq_controller_lock, flags); } static void gic_unmask_irq(struct irq_data *d) { u32 mask = 1 << (gic_irq(d) % 32); + unsigned long flags; - raw_spin_lock(&irq_controller_lock); + raw_spin_lock_irqsave(&irq_controller_lock, flags); if (gic_arch_extn.irq_unmask) gic_arch_extn.irq_unmask(d); writel_relaxed(mask, gic_dist_base(d) + GIC_DIST_ENABLE_SET + (gic_irq(d) / 32) * 4); - raw_spin_unlock(&irq_controller_lock); + raw_spin_unlock_irqrestore(&irq_controller_lock, flags); } static void gic_eoi_irq(struct irq_data *d) @@ -188,6 +190,7 @@ static int gic_set_type(struct irq_data *d, unsigned int type) { void __iomem *base = gic_dist_base(d); unsigned int gicirq = gic_irq(d); + unsigned long flags; int ret; /* Interrupt configuration for SGIs can't be changed */ @@ -199,14 +202,14 @@ static int gic_set_type(struct irq_data *d, unsigned int type) type != IRQ_TYPE_EDGE_RISING) return -EINVAL; - raw_spin_lock(&irq_controller_lock); + raw_spin_lock_irqsave(&irq_controller_lock, flags); if (gic_arch_extn.irq_set_type) gic_arch_extn.irq_set_type(d, type); ret = gic_configure_irq(gicirq, type, base, NULL); - raw_spin_unlock(&irq_controller_lock); + raw_spin_unlock_irqrestore(&irq_controller_lock, flags); return ret; } @@ -227,6 +230,7 @@ static int gic_set_affinity(struct irq_data *d, const struct cpumask *mask_val, void __iomem *reg = gic_dist_base(d) + GIC_DIST_TARGET + (gic_irq(d) & ~3); unsigned int cpu, shift = (gic_irq(d) % 4) * 8; u32 val, mask, bit; + unsigned long flags; if (!force) cpu = cpumask_any_and(mask_val, cpu_online_mask); @@ -236,12 +240,12 @@ static int gic_set_affinity(struct irq_data *d, const struct cpumask *mask_val, if (cpu >= NR_GIC_CPU_IF || cpu >= nr_cpu_ids) return -EINVAL; - raw_spin_lock(&irq_controller_lock); + raw_spin_lock_irqsave(&irq_controller_lock, flags); mask = 0xff << shift; bit = gic_cpu_map[cpu] << shift; val = readl_relaxed(reg) & ~mask; writel_relaxed(val | bit, reg); - raw_spin_unlock(&irq_controller_lock); + raw_spin_unlock_irqrestore(&irq_controller_lock, flags); return IRQ_SET_MASK_OK; } diff --git a/drivers/isdn/icn/icn.c b/drivers/isdn/icn/icn.c index 6a7447c304ac..358a574d9e8b 100644 --- a/drivers/isdn/icn/icn.c +++ b/drivers/isdn/icn/icn.c @@ -1609,7 +1609,7 @@ icn_setup(char *line) if (ints[0] > 1) membase = (unsigned long)ints[2]; if (str && *str) { - strcpy(sid, str); + strlcpy(sid, str, sizeof(sid)); icn_id = sid; if ((p = strchr(sid, ','))) { *p++ = 0; diff --git a/drivers/md/dm-io.c b/drivers/md/dm-io.c index 37de0173b6d2..74adcd2c967e 100644 --- a/drivers/md/dm-io.c +++ b/drivers/md/dm-io.c @@ -289,9 +289,16 @@ static void do_region(int rw, unsigned region, struct dm_io_region *where, struct request_queue *q = bdev_get_queue(where->bdev); unsigned short logical_block_size = queue_logical_block_size(q); sector_t num_sectors; + unsigned int uninitialized_var(special_cmd_max_sectors); - /* Reject unsupported discard requests */ - if ((rw & REQ_DISCARD) && !blk_queue_discard(q)) { + /* + * Reject unsupported discard and write same requests. + */ + if (rw & REQ_DISCARD) + special_cmd_max_sectors = q->limits.max_discard_sectors; + else if (rw & REQ_WRITE_SAME) + special_cmd_max_sectors = q->limits.max_write_same_sectors; + if ((rw & (REQ_DISCARD | REQ_WRITE_SAME)) && special_cmd_max_sectors == 0) { dec_count(io, region, -EOPNOTSUPP); return; } @@ -317,7 +324,7 @@ static void do_region(int rw, unsigned region, struct dm_io_region *where, store_io_and_region_in_bio(bio, io, region); if (rw & REQ_DISCARD) { - num_sectors = min_t(sector_t, q->limits.max_discard_sectors, remaining); + num_sectors = min_t(sector_t, special_cmd_max_sectors, remaining); bio->bi_iter.bi_size = num_sectors << SECTOR_SHIFT; remaining -= num_sectors; } else if (rw & REQ_WRITE_SAME) { @@ -326,7 +333,7 @@ static void do_region(int rw, unsigned region, struct dm_io_region *where, */ dp->get_page(dp, &page, &len, &offset); bio_add_page(bio, page, logical_block_size, offset); - num_sectors = min_t(sector_t, q->limits.max_write_same_sectors, remaining); + num_sectors = min_t(sector_t, special_cmd_max_sectors, remaining); bio->bi_iter.bi_size = num_sectors << SECTOR_SHIFT; offset = 0; diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c index 8b204ae216ab..f83a0f3fc365 100644 --- a/drivers/md/dm-snap.c +++ b/drivers/md/dm-snap.c @@ -20,6 +20,8 @@ #include <linux/log2.h> #include <linux/dm-kcopyd.h> +#include "dm.h" + #include "dm-exception-store.h" #define DM_MSG_PREFIX "snapshots" @@ -291,12 +293,23 @@ struct origin { }; /* + * This structure is allocated for each origin target + */ +struct dm_origin { + struct dm_dev *dev; + struct dm_target *ti; + unsigned split_boundary; + struct list_head hash_list; +}; + +/* * Size of the hash table for origin volumes. If we make this * the size of the minors list then it should be nearly perfect */ #define ORIGIN_HASH_SIZE 256 #define ORIGIN_MASK 0xFF static struct list_head *_origins; +static struct list_head *_dm_origins; static struct rw_semaphore _origins_lock; static DECLARE_WAIT_QUEUE_HEAD(_pending_exceptions_done); @@ -310,12 +323,22 @@ static int init_origin_hash(void) _origins = kmalloc(ORIGIN_HASH_SIZE * sizeof(struct list_head), GFP_KERNEL); if (!_origins) { - DMERR("unable to allocate memory"); + DMERR("unable to allocate memory for _origins"); return -ENOMEM; } - for (i = 0; i < ORIGIN_HASH_SIZE; i++) INIT_LIST_HEAD(_origins + i); + + _dm_origins = kmalloc(ORIGIN_HASH_SIZE * sizeof(struct list_head), + GFP_KERNEL); + if (!_dm_origins) { + DMERR("unable to allocate memory for _dm_origins"); + kfree(_origins); + return -ENOMEM; + } + for (i = 0; i < ORIGIN_HASH_SIZE; i++) + INIT_LIST_HEAD(_dm_origins + i); + init_rwsem(&_origins_lock); return 0; @@ -324,6 +347,7 @@ static int init_origin_hash(void) static void exit_origin_hash(void) { kfree(_origins); + kfree(_dm_origins); } static unsigned origin_hash(struct block_device *bdev) @@ -350,6 +374,30 @@ static void __insert_origin(struct origin *o) list_add_tail(&o->hash_list, sl); } +static struct dm_origin *__lookup_dm_origin(struct block_device *origin) +{ + struct list_head *ol; + struct dm_origin *o; + + ol = &_dm_origins[origin_hash(origin)]; + list_for_each_entry (o, ol, hash_list) + if (bdev_equal(o->dev->bdev, origin)) + return o; + + return NULL; +} + +static void __insert_dm_origin(struct dm_origin *o) +{ + struct list_head *sl = &_dm_origins[origin_hash(o->dev->bdev)]; + list_add_tail(&o->hash_list, sl); +} + +static void __remove_dm_origin(struct dm_origin *o) +{ + list_del(&o->hash_list); +} + /* * _origins_lock must be held when calling this function. * Returns number of snapshots registered using the supplied cow device, plus: @@ -1840,9 +1888,40 @@ static int snapshot_preresume(struct dm_target *ti) static void snapshot_resume(struct dm_target *ti) { struct dm_snapshot *s = ti->private; - struct dm_snapshot *snap_src = NULL, *snap_dest = NULL; + struct dm_snapshot *snap_src = NULL, *snap_dest = NULL, *snap_merging = NULL; + struct dm_origin *o; + struct mapped_device *origin_md = NULL; + bool must_restart_merging = false; down_read(&_origins_lock); + + o = __lookup_dm_origin(s->origin->bdev); + if (o) + origin_md = dm_table_get_md(o->ti->table); + if (!origin_md) { + (void) __find_snapshots_sharing_cow(s, NULL, NULL, &snap_merging); + if (snap_merging) + origin_md = dm_table_get_md(snap_merging->ti->table); + } + if (origin_md == dm_table_get_md(ti->table)) + origin_md = NULL; + if (origin_md) { + if (dm_hold(origin_md)) + origin_md = NULL; + } + + up_read(&_origins_lock); + + if (origin_md) { + dm_internal_suspend_fast(origin_md); + if (snap_merging && test_bit(RUNNING_MERGE, &snap_merging->state_bits)) { + must_restart_merging = true; + stop_merge(snap_merging); + } + } + + down_read(&_origins_lock); + (void) __find_snapshots_sharing_cow(s, &snap_src, &snap_dest, NULL); if (snap_src && snap_dest) { down_write(&snap_src->lock); @@ -1851,8 +1930,16 @@ static void snapshot_resume(struct dm_target *ti) up_write(&snap_dest->lock); up_write(&snap_src->lock); } + up_read(&_origins_lock); + if (origin_md) { + if (must_restart_merging) + start_merge(snap_merging); + dm_internal_resume_fast(origin_md); + dm_put(origin_md); + } + /* Now we have correct chunk size, reregister */ reregister_snapshot(s); @@ -2133,11 +2220,6 @@ static int origin_write_extent(struct dm_snapshot *merging_snap, * Origin: maps a linear range of a device, with hooks for snapshotting. */ -struct dm_origin { - struct dm_dev *dev; - unsigned split_boundary; -}; - /* * Construct an origin mapping: <dev_path> * The context for an origin is merely a 'struct dm_dev *' @@ -2166,6 +2248,7 @@ static int origin_ctr(struct dm_target *ti, unsigned int argc, char **argv) goto bad_open; } + o->ti = ti; ti->private = o; ti->num_flush_bios = 1; @@ -2180,6 +2263,7 @@ bad_alloc: static void origin_dtr(struct dm_target *ti) { struct dm_origin *o = ti->private; + dm_put_device(ti, o->dev); kfree(o); } @@ -2216,6 +2300,19 @@ static void origin_resume(struct dm_target *ti) struct dm_origin *o = ti->private; o->split_boundary = get_origin_minimum_chunksize(o->dev->bdev); + + down_write(&_origins_lock); + __insert_dm_origin(o); + up_write(&_origins_lock); +} + +static void origin_postsuspend(struct dm_target *ti) +{ + struct dm_origin *o = ti->private; + + down_write(&_origins_lock); + __remove_dm_origin(o); + up_write(&_origins_lock); } static void origin_status(struct dm_target *ti, status_type_t type, @@ -2258,12 +2355,13 @@ static int origin_iterate_devices(struct dm_target *ti, static struct target_type origin_target = { .name = "snapshot-origin", - .version = {1, 8, 1}, + .version = {1, 9, 0}, .module = THIS_MODULE, .ctr = origin_ctr, .dtr = origin_dtr, .map = origin_map, .resume = origin_resume, + .postsuspend = origin_postsuspend, .status = origin_status, .merge = origin_merge, .iterate_devices = origin_iterate_devices, @@ -2271,7 +2369,7 @@ static struct target_type origin_target = { static struct target_type snapshot_target = { .name = "snapshot", - .version = {1, 12, 0}, + .version = {1, 13, 0}, .module = THIS_MODULE, .ctr = snapshot_ctr, .dtr = snapshot_dtr, @@ -2285,7 +2383,7 @@ static struct target_type snapshot_target = { static struct target_type merge_target = { .name = dm_snapshot_merge_target_name, - .version = {1, 2, 0}, + .version = {1, 3, 0}, .module = THIS_MODULE, .ctr = snapshot_ctr, .dtr = snapshot_dtr, diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c index 654773cb1eee..921aafd12aee 100644 --- a/drivers/md/dm-thin.c +++ b/drivers/md/dm-thin.c @@ -2358,17 +2358,6 @@ static int thin_bio_map(struct dm_target *ti, struct bio *bio) return DM_MAPIO_REMAPPED; case -ENODATA: - if (get_pool_mode(tc->pool) == PM_READ_ONLY) { - /* - * This block isn't provisioned, and we have no way - * of doing so. - */ - handle_unserviceable_bio(tc->pool, bio); - cell_defer_no_holder(tc, virt_cell); - return DM_MAPIO_SUBMITTED; - } - /* fall through */ - case -EWOULDBLOCK: thin_defer_cell(tc, virt_cell); return DM_MAPIO_SUBMITTED; diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 73f28802dc7a..9b641b38b857 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -2616,6 +2616,19 @@ void dm_get(struct mapped_device *md) BUG_ON(test_bit(DMF_FREEING, &md->flags)); } +int dm_hold(struct mapped_device *md) +{ + spin_lock(&_minor_lock); + if (test_bit(DMF_FREEING, &md->flags)) { + spin_unlock(&_minor_lock); + return -EBUSY; + } + dm_get(md); + spin_unlock(&_minor_lock); + return 0; +} +EXPORT_SYMBOL_GPL(dm_hold); + const char *dm_device_name(struct mapped_device *md) { return md->name; @@ -2638,10 +2651,16 @@ static void __dm_destroy(struct mapped_device *md, bool wait) if (dm_request_based(md)) flush_kthread_worker(&md->kworker); + /* + * Take suspend_lock so that presuspend and postsuspend methods + * do not race with internal suspend. + */ + mutex_lock(&md->suspend_lock); if (!dm_suspended_md(md)) { dm_table_presuspend_targets(map); dm_table_postsuspend_targets(map); } + mutex_unlock(&md->suspend_lock); /* dm_put_live_table must be before msleep, otherwise deadlock is possible */ dm_put_live_table(md, srcu_idx); @@ -3115,6 +3134,7 @@ void dm_internal_suspend_fast(struct mapped_device *md) flush_workqueue(md->wq); dm_wait_for_completion(md, TASK_UNINTERRUPTIBLE); } +EXPORT_SYMBOL_GPL(dm_internal_suspend_fast); void dm_internal_resume_fast(struct mapped_device *md) { @@ -3126,6 +3146,7 @@ void dm_internal_resume_fast(struct mapped_device *md) done: mutex_unlock(&md->suspend_lock); } +EXPORT_SYMBOL_GPL(dm_internal_resume_fast); /*----------------------------------------------------------------- * Event notification. diff --git a/drivers/md/md.c b/drivers/md/md.c index cadf9cc02b25..717daad71fb1 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -5080,7 +5080,8 @@ int md_run(struct mddev *mddev) } if (err) { mddev_detach(mddev); - pers->free(mddev, mddev->private); + if (mddev->private) + pers->free(mddev, mddev->private); module_put(pers->owner); bitmap_destroy(mddev); return err; diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c index a13f738a7b39..3ed9f42ddca6 100644 --- a/drivers/md/raid0.c +++ b/drivers/md/raid0.c @@ -467,8 +467,6 @@ static int raid0_run(struct mddev *mddev) dump_zones(mddev); ret = md_integrity_register(mddev); - if (ret) - raid0_free(mddev, conf); return ret; } diff --git a/drivers/mmc/core/pwrseq_simple.c b/drivers/mmc/core/pwrseq_simple.c index e9f1d8d84613..c53f14a7ce54 100644 --- a/drivers/mmc/core/pwrseq_simple.c +++ b/drivers/mmc/core/pwrseq_simple.c @@ -124,7 +124,7 @@ int mmc_pwrseq_simple_alloc(struct mmc_host *host, struct device *dev) PTR_ERR(pwrseq->reset_gpios[i]) != -ENOSYS) { ret = PTR_ERR(pwrseq->reset_gpios[i]); - while (--i) + while (i--) gpiod_put(pwrseq->reset_gpios[i]); goto clk_put; diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig index 5b76a173cd95..5897d8d8fa5a 100644 --- a/drivers/mtd/nand/Kconfig +++ b/drivers/mtd/nand/Kconfig @@ -526,6 +526,7 @@ config MTD_NAND_SUNXI config MTD_NAND_HISI504 tristate "Support for NAND controller on Hisilicon SoC Hip04" + depends on HAS_DMA help Enables support for NAND controller on Hisilicon SoC Hip04. diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c index 96b0b1d27df1..10b1f7a4fe50 100644 --- a/drivers/mtd/nand/pxa3xx_nand.c +++ b/drivers/mtd/nand/pxa3xx_nand.c @@ -480,6 +480,42 @@ static void disable_int(struct pxa3xx_nand_info *info, uint32_t int_mask) nand_writel(info, NDCR, ndcr | int_mask); } +static void drain_fifo(struct pxa3xx_nand_info *info, void *data, int len) +{ + if (info->ecc_bch) { + int timeout; + + /* + * According to the datasheet, when reading from NDDB + * with BCH enabled, after each 32 bytes reads, we + * have to make sure that the NDSR.RDDREQ bit is set. + * + * Drain the FIFO 8 32 bits reads at a time, and skip + * the polling on the last read. + */ + while (len > 8) { + __raw_readsl(info->mmio_base + NDDB, data, 8); + + for (timeout = 0; + !(nand_readl(info, NDSR) & NDSR_RDDREQ); + timeout++) { + if (timeout >= 5) { + dev_err(&info->pdev->dev, + "Timeout on RDDREQ while draining the FIFO\n"); + return; + } + + mdelay(1); + } + + data += 32; + len -= 8; + } + } + + __raw_readsl(info->mmio_base + NDDB, data, len); +} + static void handle_data_pio(struct pxa3xx_nand_info *info) { unsigned int do_bytes = min(info->data_size, info->chunk_size); @@ -496,14 +532,14 @@ static void handle_data_pio(struct pxa3xx_nand_info *info) DIV_ROUND_UP(info->oob_size, 4)); break; case STATE_PIO_READING: - __raw_readsl(info->mmio_base + NDDB, - info->data_buff + info->data_buff_pos, - DIV_ROUND_UP(do_bytes, 4)); + drain_fifo(info, + info->data_buff + info->data_buff_pos, + DIV_ROUND_UP(do_bytes, 4)); if (info->oob_size > 0) - __raw_readsl(info->mmio_base + NDDB, - info->oob_buff + info->oob_buff_pos, - DIV_ROUND_UP(info->oob_size, 4)); + drain_fifo(info, + info->oob_buff + info->oob_buff_pos, + DIV_ROUND_UP(info->oob_size, 4)); break; default: dev_err(&info->pdev->dev, "%s: invalid state %d\n", __func__, @@ -1572,6 +1608,8 @@ static int alloc_nand_resource(struct platform_device *pdev) int ret, irq, cs; pdata = dev_get_platdata(&pdev->dev); + if (pdata->num_cs <= 0) + return -ENODEV; info = devm_kzalloc(&pdev->dev, sizeof(*info) + (sizeof(*mtd) + sizeof(*host)) * pdata->num_cs, GFP_KERNEL); if (!info) diff --git a/drivers/mtd/ubi/eba.c b/drivers/mtd/ubi/eba.c index da4c79259f67..16e34b37d134 100644 --- a/drivers/mtd/ubi/eba.c +++ b/drivers/mtd/ubi/eba.c @@ -425,9 +425,10 @@ retry: ubi_warn(ubi, "corrupted VID header at PEB %d, LEB %d:%d", pnum, vol_id, lnum); err = -EBADMSG; - } else + } else { err = -EINVAL; ubi_ro_mode(ubi); + } } goto out_free; } else if (err == UBI_IO_BITFLIPS) diff --git a/drivers/net/can/Kconfig b/drivers/net/can/Kconfig index 98d73aab52fe..58808f651452 100644 --- a/drivers/net/can/Kconfig +++ b/drivers/net/can/Kconfig @@ -131,7 +131,7 @@ config CAN_RCAR config CAN_XILINXCAN tristate "Xilinx CAN" - depends on ARCH_ZYNQ || MICROBLAZE || COMPILE_TEST + depends on ARCH_ZYNQ || ARM64 || MICROBLAZE || COMPILE_TEST depends on COMMON_CLK && HAS_IOMEM ---help--- Xilinx CAN driver. This driver supports both soft AXI CAN IP and diff --git a/drivers/net/can/dev.c b/drivers/net/can/dev.c index 3c82e02e3dae..b0f69248cb71 100644 --- a/drivers/net/can/dev.c +++ b/drivers/net/can/dev.c @@ -579,6 +579,10 @@ struct sk_buff *alloc_can_skb(struct net_device *dev, struct can_frame **cf) skb->pkt_type = PACKET_BROADCAST; skb->ip_summed = CHECKSUM_UNNECESSARY; + skb_reset_mac_header(skb); + skb_reset_network_header(skb); + skb_reset_transport_header(skb); + can_skb_reserve(skb); can_skb_prv(skb)->ifindex = dev->ifindex; @@ -603,6 +607,10 @@ struct sk_buff *alloc_canfd_skb(struct net_device *dev, skb->pkt_type = PACKET_BROADCAST; skb->ip_summed = CHECKSUM_UNNECESSARY; + skb_reset_mac_header(skb); + skb_reset_network_header(skb); + skb_reset_transport_header(skb); + can_skb_reserve(skb); can_skb_prv(skb)->ifindex = dev->ifindex; diff --git a/drivers/net/can/usb/kvaser_usb.c b/drivers/net/can/usb/kvaser_usb.c index 2928f7003041..e97a08ce0b90 100644 --- a/drivers/net/can/usb/kvaser_usb.c +++ b/drivers/net/can/usb/kvaser_usb.c @@ -14,6 +14,8 @@ * Copyright (C) 2015 Valeo S.A. */ +#include <linux/spinlock.h> +#include <linux/kernel.h> #include <linux/completion.h> #include <linux/module.h> #include <linux/netdevice.h> @@ -466,10 +468,11 @@ struct kvaser_usb { struct kvaser_usb_net_priv { struct can_priv can; - atomic_t active_tx_urbs; - struct usb_anchor tx_submitted; + spinlock_t tx_contexts_lock; + int active_tx_contexts; struct kvaser_usb_tx_urb_context tx_contexts[MAX_TX_URBS]; + struct usb_anchor tx_submitted; struct completion start_comp, stop_comp; struct kvaser_usb *dev; @@ -584,8 +587,15 @@ static int kvaser_usb_wait_msg(const struct kvaser_usb *dev, u8 id, while (pos <= actual_len - MSG_HEADER_LEN) { tmp = buf + pos; - if (!tmp->len) - break; + /* Handle messages crossing the USB endpoint max packet + * size boundary. Check kvaser_usb_read_bulk_callback() + * for further details. + */ + if (tmp->len == 0) { + pos = round_up(pos, + dev->bulk_in->wMaxPacketSize); + continue; + } if (pos + tmp->len > actual_len) { dev_err(dev->udev->dev.parent, @@ -686,6 +696,7 @@ static void kvaser_usb_tx_acknowledge(const struct kvaser_usb *dev, struct kvaser_usb_net_priv *priv; struct sk_buff *skb; struct can_frame *cf; + unsigned long flags; u8 channel, tid; channel = msg->u.tx_acknowledge_header.channel; @@ -729,12 +740,15 @@ static void kvaser_usb_tx_acknowledge(const struct kvaser_usb *dev, stats->tx_packets++; stats->tx_bytes += context->dlc; - can_get_echo_skb(priv->netdev, context->echo_index); - context->echo_index = MAX_TX_URBS; - atomic_dec(&priv->active_tx_urbs); + spin_lock_irqsave(&priv->tx_contexts_lock, flags); + can_get_echo_skb(priv->netdev, context->echo_index); + context->echo_index = MAX_TX_URBS; + --priv->active_tx_contexts; netif_wake_queue(priv->netdev); + + spin_unlock_irqrestore(&priv->tx_contexts_lock, flags); } static void kvaser_usb_simple_msg_callback(struct urb *urb) @@ -787,7 +801,6 @@ static int kvaser_usb_simple_msg_async(struct kvaser_usb_net_priv *priv, netdev_err(netdev, "Error transmitting URB\n"); usb_unanchor_urb(urb); usb_free_urb(urb); - kfree(buf); return err; } @@ -796,17 +809,6 @@ static int kvaser_usb_simple_msg_async(struct kvaser_usb_net_priv *priv, return 0; } -static void kvaser_usb_unlink_tx_urbs(struct kvaser_usb_net_priv *priv) -{ - int i; - - usb_kill_anchored_urbs(&priv->tx_submitted); - atomic_set(&priv->active_tx_urbs, 0); - - for (i = 0; i < MAX_TX_URBS; i++) - priv->tx_contexts[i].echo_index = MAX_TX_URBS; -} - static void kvaser_usb_rx_error_update_can_state(struct kvaser_usb_net_priv *priv, const struct kvaser_usb_error_summary *es, struct can_frame *cf) @@ -1317,8 +1319,19 @@ static void kvaser_usb_read_bulk_callback(struct urb *urb) while (pos <= urb->actual_length - MSG_HEADER_LEN) { msg = urb->transfer_buffer + pos; - if (!msg->len) - break; + /* The Kvaser firmware can only read and write messages that + * does not cross the USB's endpoint wMaxPacketSize boundary. + * If a follow-up command crosses such boundary, firmware puts + * a placeholder zero-length command in its place then aligns + * the real command to the next max packet size. + * + * Handle such cases or we're going to miss a significant + * number of events in case of a heavy rx load on the bus. + */ + if (msg->len == 0) { + pos = round_up(pos, dev->bulk_in->wMaxPacketSize); + continue; + } if (pos + msg->len > urb->actual_length) { dev_err(dev->udev->dev.parent, "Format error\n"); @@ -1326,7 +1339,6 @@ static void kvaser_usb_read_bulk_callback(struct urb *urb) } kvaser_usb_handle_message(dev, msg); - pos += msg->len; } @@ -1498,6 +1510,24 @@ error: return err; } +static void kvaser_usb_reset_tx_urb_contexts(struct kvaser_usb_net_priv *priv) +{ + int i; + + priv->active_tx_contexts = 0; + for (i = 0; i < MAX_TX_URBS; i++) + priv->tx_contexts[i].echo_index = MAX_TX_URBS; +} + +/* This method might sleep. Do not call it in the atomic context + * of URB completions. + */ +static void kvaser_usb_unlink_tx_urbs(struct kvaser_usb_net_priv *priv) +{ + usb_kill_anchored_urbs(&priv->tx_submitted); + kvaser_usb_reset_tx_urb_contexts(priv); +} + static void kvaser_usb_unlink_all_urbs(struct kvaser_usb *dev) { int i; @@ -1615,9 +1645,9 @@ static netdev_tx_t kvaser_usb_start_xmit(struct sk_buff *skb, struct urb *urb; void *buf; struct kvaser_msg *msg; - int i, err; - int ret = NETDEV_TX_OK; + int i, err, ret = NETDEV_TX_OK; u8 *msg_tx_can_flags = NULL; /* GCC */ + unsigned long flags; if (can_dropped_invalid_skb(netdev, skb)) return NETDEV_TX_OK; @@ -1634,7 +1664,7 @@ static netdev_tx_t kvaser_usb_start_xmit(struct sk_buff *skb, if (!buf) { stats->tx_dropped++; dev_kfree_skb(skb); - goto nobufmem; + goto freeurb; } msg = buf; @@ -1671,22 +1701,32 @@ static netdev_tx_t kvaser_usb_start_xmit(struct sk_buff *skb, if (cf->can_id & CAN_RTR_FLAG) *msg_tx_can_flags |= MSG_FLAG_REMOTE_FRAME; + spin_lock_irqsave(&priv->tx_contexts_lock, flags); for (i = 0; i < ARRAY_SIZE(priv->tx_contexts); i++) { if (priv->tx_contexts[i].echo_index == MAX_TX_URBS) { context = &priv->tx_contexts[i]; + + context->echo_index = i; + can_put_echo_skb(skb, netdev, context->echo_index); + ++priv->active_tx_contexts; + if (priv->active_tx_contexts >= MAX_TX_URBS) + netif_stop_queue(netdev); + break; } } + spin_unlock_irqrestore(&priv->tx_contexts_lock, flags); /* This should never happen; it implies a flow control bug */ if (!context) { netdev_warn(netdev, "cannot find free context\n"); + + kfree(buf); ret = NETDEV_TX_BUSY; - goto releasebuf; + goto freeurb; } context->priv = priv; - context->echo_index = i; context->dlc = cf->can_dlc; msg->u.tx_can.tid = context->echo_index; @@ -1698,18 +1738,17 @@ static netdev_tx_t kvaser_usb_start_xmit(struct sk_buff *skb, kvaser_usb_write_bulk_callback, context); usb_anchor_urb(urb, &priv->tx_submitted); - can_put_echo_skb(skb, netdev, context->echo_index); - - atomic_inc(&priv->active_tx_urbs); - - if (atomic_read(&priv->active_tx_urbs) >= MAX_TX_URBS) - netif_stop_queue(netdev); - err = usb_submit_urb(urb, GFP_ATOMIC); if (unlikely(err)) { + spin_lock_irqsave(&priv->tx_contexts_lock, flags); + can_free_echo_skb(netdev, context->echo_index); + context->echo_index = MAX_TX_URBS; + --priv->active_tx_contexts; + netif_wake_queue(netdev); + + spin_unlock_irqrestore(&priv->tx_contexts_lock, flags); - atomic_dec(&priv->active_tx_urbs); usb_unanchor_urb(urb); stats->tx_dropped++; @@ -1719,16 +1758,12 @@ static netdev_tx_t kvaser_usb_start_xmit(struct sk_buff *skb, else netdev_warn(netdev, "Failed tx_urb %d\n", err); - goto releasebuf; + goto freeurb; } - usb_free_urb(urb); - - return NETDEV_TX_OK; + ret = NETDEV_TX_OK; -releasebuf: - kfree(buf); -nobufmem: +freeurb: usb_free_urb(urb); return ret; } @@ -1840,7 +1875,7 @@ static int kvaser_usb_init_one(struct usb_interface *intf, struct kvaser_usb *dev = usb_get_intfdata(intf); struct net_device *netdev; struct kvaser_usb_net_priv *priv; - int i, err; + int err; err = kvaser_usb_send_simple_msg(dev, CMD_RESET_CHIP, channel); if (err) @@ -1854,19 +1889,17 @@ static int kvaser_usb_init_one(struct usb_interface *intf, priv = netdev_priv(netdev); + init_usb_anchor(&priv->tx_submitted); init_completion(&priv->start_comp); init_completion(&priv->stop_comp); - init_usb_anchor(&priv->tx_submitted); - atomic_set(&priv->active_tx_urbs, 0); - - for (i = 0; i < ARRAY_SIZE(priv->tx_contexts); i++) - priv->tx_contexts[i].echo_index = MAX_TX_URBS; - priv->dev = dev; priv->netdev = netdev; priv->channel = channel; + spin_lock_init(&priv->tx_contexts_lock); + kvaser_usb_reset_tx_urb_contexts(priv); + priv->can.state = CAN_STATE_STOPPED; priv->can.clock.freq = CAN_USB_CLOCK; priv->can.bittiming_const = &kvaser_usb_bittiming_const; diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_fd.c b/drivers/net/can/usb/peak_usb/pcan_usb_fd.c index 962c3f027383..0bac0f14edc3 100644 --- a/drivers/net/can/usb/peak_usb/pcan_usb_fd.c +++ b/drivers/net/can/usb/peak_usb/pcan_usb_fd.c @@ -879,6 +879,10 @@ static int pcan_usb_fd_init(struct peak_usb_device *dev) pdev->usb_if = ppdev->usb_if; pdev->cmd_buffer_addr = ppdev->cmd_buffer_addr; + + /* do a copy of the ctrlmode[_supported] too */ + dev->can.ctrlmode = ppdev->dev.can.ctrlmode; + dev->can.ctrlmode_supported = ppdev->dev.can.ctrlmode_supported; } pdev->usb_if->dev[dev->ctrl_idx] = dev; diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c b/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c index 869d97fcf781..b927021c6c40 100644 --- a/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c +++ b/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c @@ -593,7 +593,7 @@ static int xgene_enet_reset(struct xgene_enet_pdata *pdata) if (!xgene_ring_mgr_init(pdata)) return -ENODEV; - if (!efi_enabled(EFI_BOOT)) { + if (pdata->clk) { clk_prepare_enable(pdata->clk); clk_disable_unprepare(pdata->clk); clk_prepare_enable(pdata->clk); diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_main.c b/drivers/net/ethernet/apm/xgene/xgene_enet_main.c index 4de62b210c85..635a83be7e5e 100644 --- a/drivers/net/ethernet/apm/xgene/xgene_enet_main.c +++ b/drivers/net/ethernet/apm/xgene/xgene_enet_main.c @@ -1025,6 +1025,8 @@ static int xgene_enet_remove(struct platform_device *pdev) #ifdef CONFIG_ACPI static const struct acpi_device_id xgene_enet_acpi_match[] = { { "APMC0D05", }, + { "APMC0D30", }, + { "APMC0D31", }, { } }; MODULE_DEVICE_TABLE(acpi, xgene_enet_acpi_match); @@ -1033,6 +1035,8 @@ MODULE_DEVICE_TABLE(acpi, xgene_enet_acpi_match); #ifdef CONFIG_OF static struct of_device_id xgene_enet_of_match[] = { {.compatible = "apm,xgene-enet",}, + {.compatible = "apm,xgene1-sgenet",}, + {.compatible = "apm,xgene1-xgenet",}, {}, }; diff --git a/drivers/net/ethernet/broadcom/bcm63xx_enet.c b/drivers/net/ethernet/broadcom/bcm63xx_enet.c index 21206d33b638..a7f2cc3e485e 100644 --- a/drivers/net/ethernet/broadcom/bcm63xx_enet.c +++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.c @@ -486,7 +486,7 @@ static int bcm_enet_poll(struct napi_struct *napi, int budget) { struct bcm_enet_priv *priv; struct net_device *dev; - int tx_work_done, rx_work_done; + int rx_work_done; priv = container_of(napi, struct bcm_enet_priv, napi); dev = priv->net_dev; @@ -498,14 +498,14 @@ static int bcm_enet_poll(struct napi_struct *napi, int budget) ENETDMAC_IR, priv->tx_chan); /* reclaim sent skb */ - tx_work_done = bcm_enet_tx_reclaim(dev, 0); + bcm_enet_tx_reclaim(dev, 0); spin_lock(&priv->rx_lock); rx_work_done = bcm_enet_receive_queue(dev, budget); spin_unlock(&priv->rx_lock); - if (rx_work_done >= budget || tx_work_done > 0) { - /* rx/tx queue is not yet empty/clean */ + if (rx_work_done >= budget) { + /* rx queue is not yet empty/clean */ return rx_work_done; } diff --git a/drivers/net/ethernet/broadcom/bgmac.c b/drivers/net/ethernet/broadcom/bgmac.c index 676ffe093180..0469f72c6e7e 100644 --- a/drivers/net/ethernet/broadcom/bgmac.c +++ b/drivers/net/ethernet/broadcom/bgmac.c @@ -302,9 +302,6 @@ static int bgmac_dma_rx_skb_for_slot(struct bgmac *bgmac, slot->skb = skb; slot->dma_addr = dma_addr; - if (slot->dma_addr & 0xC0000000) - bgmac_warn(bgmac, "DMA address using 0xC0000000 bit(s), it may need translation trick\n"); - return 0; } @@ -505,8 +502,6 @@ static int bgmac_dma_alloc(struct bgmac *bgmac) ring->mmio_base); goto err_dma_free; } - if (ring->dma_base & 0xC0000000) - bgmac_warn(bgmac, "DMA address using 0xC0000000 bit(s), it may need translation trick\n"); ring->unaligned = bgmac_dma_unaligned(bgmac, ring, BGMAC_DMA_RING_TX); @@ -536,8 +531,6 @@ static int bgmac_dma_alloc(struct bgmac *bgmac) err = -ENOMEM; goto err_dma_free; } - if (ring->dma_base & 0xC0000000) - bgmac_warn(bgmac, "DMA address using 0xC0000000 bit(s), it may need translation trick\n"); ring->unaligned = bgmac_dma_unaligned(bgmac, ring, BGMAC_DMA_RING_RX); diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c index 7155e1d2c208..996e215fc324 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c @@ -12722,6 +12722,9 @@ static int bnx2x_init_dev(struct bnx2x *bp, struct pci_dev *pdev, pci_write_config_dword(bp->pdev, PCICFG_GRC_ADDRESS, PCICFG_VENDOR_ID_OFFSET); + /* Set PCIe reset type to fundamental for EEH recovery */ + pdev->needs_freset = 1; + /* AER (Advanced Error reporting) configuration */ rc = pci_enable_pcie_error_reporting(pdev); if (!rc) @@ -12766,7 +12769,7 @@ static int bnx2x_init_dev(struct bnx2x *bp, struct pci_dev *pdev, NETIF_F_TSO | NETIF_F_TSO_ECN | NETIF_F_TSO6 | NETIF_F_RXCSUM | NETIF_F_LRO | NETIF_F_GRO | NETIF_F_RXHASH | NETIF_F_HW_VLAN_CTAG_TX; - if (!CHIP_IS_E1x(bp)) { + if (!chip_is_e1x) { dev->hw_features |= NETIF_F_GSO_GRE | NETIF_F_GSO_UDP_TUNNEL | NETIF_F_GSO_IPIP | NETIF_F_GSO_SIT; dev->hw_enc_features = diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c b/drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c index 149a0d70c108..b97122926d3a 100644 --- a/drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c +++ b/drivers/net/ethernet/broadcom/genet/bcmgenet_wol.c @@ -73,15 +73,17 @@ int bcmgenet_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) if (wol->wolopts & ~(WAKE_MAGIC | WAKE_MAGICSECURE)) return -EINVAL; + reg = bcmgenet_umac_readl(priv, UMAC_MPD_CTRL); if (wol->wolopts & WAKE_MAGICSECURE) { bcmgenet_umac_writel(priv, get_unaligned_be16(&wol->sopass[0]), UMAC_MPD_PW_MS); bcmgenet_umac_writel(priv, get_unaligned_be32(&wol->sopass[2]), UMAC_MPD_PW_LS); - reg = bcmgenet_umac_readl(priv, UMAC_MPD_CTRL); reg |= MPD_PW_EN; - bcmgenet_umac_writel(priv, reg, UMAC_MPD_CTRL); + } else { + reg &= ~MPD_PW_EN; } + bcmgenet_umac_writel(priv, reg, UMAC_MPD_CTRL); /* Flag the device and relevant IRQ as wakeup capable */ if (wol->wolopts) { diff --git a/drivers/net/ethernet/cadence/macb.c b/drivers/net/ethernet/cadence/macb.c index ad76b8e35a00..81d41539fcba 100644 --- a/drivers/net/ethernet/cadence/macb.c +++ b/drivers/net/ethernet/cadence/macb.c @@ -2113,17 +2113,17 @@ static const struct net_device_ops macb_netdev_ops = { }; #if defined(CONFIG_OF) -static struct macb_config pc302gem_config = { +static const struct macb_config pc302gem_config = { .caps = MACB_CAPS_SG_DISABLED | MACB_CAPS_GIGABIT_MODE_AVAILABLE, .dma_burst_length = 16, }; -static struct macb_config sama5d3_config = { +static const struct macb_config sama5d3_config = { .caps = MACB_CAPS_SG_DISABLED | MACB_CAPS_GIGABIT_MODE_AVAILABLE, .dma_burst_length = 16, }; -static struct macb_config sama5d4_config = { +static const struct macb_config sama5d4_config = { .caps = 0, .dma_burst_length = 4, }; @@ -2154,7 +2154,7 @@ static void macb_configure_caps(struct macb *bp) if (bp->pdev->dev.of_node) { match = of_match_node(macb_dt_ids, bp->pdev->dev.of_node); if (match && match->data) { - config = (const struct macb_config *)match->data; + config = match->data; bp->caps = config->caps; /* diff --git a/drivers/net/ethernet/cadence/macb.h b/drivers/net/ethernet/cadence/macb.h index 31dc080f2437..ff85619a9732 100644 --- a/drivers/net/ethernet/cadence/macb.h +++ b/drivers/net/ethernet/cadence/macb.h @@ -351,7 +351,7 @@ /* Bitfields in MID */ #define MACB_IDNUM_OFFSET 16 -#define MACB_IDNUM_SIZE 16 +#define MACB_IDNUM_SIZE 12 #define MACB_REV_OFFSET 0 #define MACB_REV_SIZE 16 diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c index 853c38997c82..1abdfa123c6c 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c +++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c @@ -1120,7 +1120,7 @@ int t4_prep_fw(struct adapter *adap, struct fw_info *fw_info, } /* Installed successfully, update the cached header too. */ - memcpy(card_fw, fs_fw, sizeof(*card_fw)); + *card_fw = *fs_fw; card_fw_usable = 1; *reset = 0; /* already reset as part of load_fw */ } diff --git a/drivers/net/ethernet/dec/tulip/tulip_core.c b/drivers/net/ethernet/dec/tulip/tulip_core.c index 3b42556f7f8d..ed41559bae77 100644 --- a/drivers/net/ethernet/dec/tulip/tulip_core.c +++ b/drivers/net/ethernet/dec/tulip/tulip_core.c @@ -589,7 +589,7 @@ static void tulip_tx_timeout(struct net_device *dev) (unsigned int)tp->rx_ring[i].buffer1, (unsigned int)tp->rx_ring[i].buffer2, buf[0], buf[1], buf[2]); - for (j = 0; buf[j] != 0xee && j < 1600; j++) + for (j = 0; ((j < 1600) && buf[j] != 0xee); j++) if (j < 100) pr_cont(" %02x", buf[j]); pr_cont(" j=%d\n", j); diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c index 9bb6220663b2..78e1ce09b1ab 100644 --- a/drivers/net/ethernet/freescale/fec_main.c +++ b/drivers/net/ethernet/freescale/fec_main.c @@ -1189,13 +1189,12 @@ static void fec_enet_tx_queue(struct net_device *ndev, u16 queue_id) { struct fec_enet_private *fep; - struct bufdesc *bdp, *bdp_t; + struct bufdesc *bdp; unsigned short status; struct sk_buff *skb; struct fec_enet_priv_tx_q *txq; struct netdev_queue *nq; int index = 0; - int i, bdnum; int entries_free; fep = netdev_priv(ndev); @@ -1216,29 +1215,18 @@ fec_enet_tx_queue(struct net_device *ndev, u16 queue_id) if (bdp == txq->cur_tx) break; - bdp_t = bdp; - bdnum = 1; - index = fec_enet_get_bd_index(txq->tx_bd_base, bdp_t, fep); - skb = txq->tx_skbuff[index]; - while (!skb) { - bdp_t = fec_enet_get_nextdesc(bdp_t, fep, queue_id); - index = fec_enet_get_bd_index(txq->tx_bd_base, bdp_t, fep); - skb = txq->tx_skbuff[index]; - bdnum++; - } - if (skb_shinfo(skb)->nr_frags && - (status = bdp_t->cbd_sc) & BD_ENET_TX_READY) - break; + index = fec_enet_get_bd_index(txq->tx_bd_base, bdp, fep); - for (i = 0; i < bdnum; i++) { - if (!IS_TSO_HEADER(txq, bdp->cbd_bufaddr)) - dma_unmap_single(&fep->pdev->dev, bdp->cbd_bufaddr, - bdp->cbd_datlen, DMA_TO_DEVICE); - bdp->cbd_bufaddr = 0; - if (i < bdnum - 1) - bdp = fec_enet_get_nextdesc(bdp, fep, queue_id); - } + skb = txq->tx_skbuff[index]; txq->tx_skbuff[index] = NULL; + if (!IS_TSO_HEADER(txq, bdp->cbd_bufaddr)) + dma_unmap_single(&fep->pdev->dev, bdp->cbd_bufaddr, + bdp->cbd_datlen, DMA_TO_DEVICE); + bdp->cbd_bufaddr = 0; + if (!skb) { + bdp = fec_enet_get_nextdesc(bdp, fep, queue_id); + continue; + } /* Check for errors. */ if (status & (BD_ENET_TX_HB | BD_ENET_TX_LC | @@ -1479,8 +1467,7 @@ fec_enet_rx_queue(struct net_device *ndev, int budget, u16 queue_id) vlan_packet_rcvd = true; - skb_copy_to_linear_data_offset(skb, VLAN_HLEN, - data, (2 * ETH_ALEN)); + memmove(skb->data + VLAN_HLEN, data, ETH_ALEN * 2); skb_pull(skb, VLAN_HLEN); } @@ -1597,7 +1584,7 @@ fec_enet_interrupt(int irq, void *dev_id) writel(int_events, fep->hwp + FEC_IEVENT); fec_enet_collect_events(fep, int_events); - if (fep->work_tx || fep->work_rx) { + if ((fep->work_tx || fep->work_rx) && fep->link) { ret = IRQ_HANDLED; if (napi_schedule_prep(&fep->napi)) { @@ -3383,7 +3370,6 @@ fec_drv_remove(struct platform_device *pdev) regulator_disable(fep->reg_phy); if (fep->ptp_clock) ptp_clock_unregister(fep->ptp_clock); - fec_enet_clk_enable(ndev, false); of_node_put(fep->phy_node); free_netdev(ndev); diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c index 178e54028d10..7bf3682cdf47 100644 --- a/drivers/net/ethernet/freescale/gianfar.c +++ b/drivers/net/ethernet/freescale/gianfar.c @@ -747,6 +747,18 @@ static int gfar_parse_group(struct device_node *np, return 0; } +static int gfar_of_group_count(struct device_node *np) +{ + struct device_node *child; + int num = 0; + + for_each_available_child_of_node(np, child) + if (!of_node_cmp(child->name, "queue-group")) + num++; + + return num; +} + static int gfar_of_init(struct platform_device *ofdev, struct net_device **pdev) { const char *model; @@ -784,7 +796,7 @@ static int gfar_of_init(struct platform_device *ofdev, struct net_device **pdev) num_rx_qs = 1; } else { /* MQ_MG_MODE */ /* get the actual number of supported groups */ - unsigned int num_grps = of_get_available_child_count(np); + unsigned int num_grps = gfar_of_group_count(np); if (num_grps == 0 || num_grps > MAXGROUPS) { dev_err(&ofdev->dev, "Invalid # of int groups(%d)\n", @@ -851,7 +863,10 @@ static int gfar_of_init(struct platform_device *ofdev, struct net_device **pdev) /* Parse and initialize group specific information */ if (priv->mode == MQ_MG_MODE) { - for_each_child_of_node(np, child) { + for_each_available_child_of_node(np, child) { + if (of_node_cmp(child->name, "queue-group")) + continue; + err = gfar_parse_group(child, priv, model); if (err) goto err_grp_init; diff --git a/drivers/net/ethernet/ibm/ibmveth.c b/drivers/net/ethernet/ibm/ibmveth.c index 072426a72745..cd7675ac5bf9 100644 --- a/drivers/net/ethernet/ibm/ibmveth.c +++ b/drivers/net/ethernet/ibm/ibmveth.c @@ -1136,6 +1136,8 @@ restart_poll: ibmveth_replenish_task(adapter); if (frames_processed < budget) { + napi_complete(napi); + /* We think we are done - reenable interrupts, * then check once more to make sure we are done. */ @@ -1144,8 +1146,6 @@ restart_poll: BUG_ON(lpar_rc != H_SUCCESS); - napi_complete(napi); - if (ibmveth_rxq_pending_buffer(adapter) && napi_reschedule(napi)) { lpar_rc = h_vio_signal(adapter->vdev->unit_address, diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c index 2a210c4efb89..ebce5bb24df9 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c @@ -1698,8 +1698,6 @@ int mlx4_en_start_port(struct net_device *dev) /* Schedule multicast task to populate multicast list */ queue_work(mdev->workqueue, &priv->rx_mode_task); - mlx4_set_stats_bitmap(mdev->dev, &priv->stats_bitmap); - #ifdef CONFIG_MLX4_EN_VXLAN if (priv->mdev->dev->caps.tunnel_offload_mode == MLX4_TUNNEL_OFFLOAD_MODE_VXLAN) vxlan_get_rx_port(dev); @@ -2853,6 +2851,8 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port, queue_delayed_work(mdev->workqueue, &priv->service_task, SERVICE_TASK_DELAY); + mlx4_set_stats_bitmap(mdev->dev, &priv->stats_bitmap); + return 0; out: diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h index 2a8268e6be15..ebbe244e80dd 100644 --- a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h +++ b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h @@ -453,7 +453,7 @@ struct mlx4_en_port_stats { unsigned long rx_chksum_none; unsigned long rx_chksum_complete; unsigned long tx_chksum_offload; -#define NUM_PORT_STATS 9 +#define NUM_PORT_STATS 10 }; struct mlx4_en_perf_stats { diff --git a/drivers/net/ethernet/smsc/smc91x.c b/drivers/net/ethernet/smsc/smc91x.c index 209ee1b27f8d..8678e39aba08 100644 --- a/drivers/net/ethernet/smsc/smc91x.c +++ b/drivers/net/ethernet/smsc/smc91x.c @@ -92,6 +92,7 @@ static const char version[] = #include "smc91x.h" #if defined(CONFIG_ASSABET_NEPONSET) +#include <mach/assabet.h> #include <mach/neponset.h> #endif @@ -2247,10 +2248,9 @@ static int smc_drv_probe(struct platform_device *pdev) const struct of_device_id *match = NULL; struct smc_local *lp; struct net_device *ndev; - struct resource *res; + struct resource *res, *ires; unsigned int __iomem *addr; unsigned long irq_flags = SMC_IRQ_FLAGS; - unsigned long irq_resflags; int ret; ndev = alloc_etherdev(sizeof(struct smc_local)); @@ -2342,19 +2342,16 @@ static int smc_drv_probe(struct platform_device *pdev) goto out_free_netdev; } - ndev->irq = platform_get_irq(pdev, 0); - if (ndev->irq <= 0) { + ires = platform_get_resource(pdev, IORESOURCE_IRQ, 0); + if (!ires) { ret = -ENODEV; goto out_release_io; } - /* - * If this platform does not specify any special irqflags, or if - * the resource supplies a trigger, override the irqflags with - * the trigger flags from the resource. - */ - irq_resflags = irqd_get_trigger_type(irq_get_irq_data(ndev->irq)); - if (irq_flags == -1 || irq_resflags & IRQF_TRIGGER_MASK) - irq_flags = irq_resflags & IRQF_TRIGGER_MASK; + + ndev->irq = ires->start; + + if (irq_flags == -1 || ires->flags & IRQF_TRIGGER_MASK) + irq_flags = ires->flags & IRQF_TRIGGER_MASK; ret = smc_request_attrib(pdev, ndev); if (ret) diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c index fb846ebba1d9..f9b42f11950f 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c @@ -272,6 +272,37 @@ static int stmmac_pltfr_probe(struct platform_device *pdev) struct stmmac_priv *priv = NULL; struct plat_stmmacenet_data *plat_dat = NULL; const char *mac = NULL; + int irq, wol_irq, lpi_irq; + + /* Get IRQ information early to have an ability to ask for deferred + * probe if needed before we went too far with resource allocation. + */ + irq = platform_get_irq_byname(pdev, "macirq"); + if (irq < 0) { + if (irq != -EPROBE_DEFER) { + dev_err(dev, + "MAC IRQ configuration information not found\n"); + } + return irq; + } + + /* On some platforms e.g. SPEAr the wake up irq differs from the mac irq + * The external wake up irq can be passed through the platform code + * named as "eth_wake_irq" + * + * In case the wake up interrupt is not passed from the platform + * so the driver will continue to use the mac irq (ndev->irq) + */ + wol_irq = platform_get_irq_byname(pdev, "eth_wake_irq"); + if (wol_irq < 0) { + if (wol_irq == -EPROBE_DEFER) + return -EPROBE_DEFER; + wol_irq = irq; + } + + lpi_irq = platform_get_irq_byname(pdev, "eth_lpi"); + if (lpi_irq == -EPROBE_DEFER) + return -EPROBE_DEFER; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); addr = devm_ioremap_resource(dev, res); @@ -323,39 +354,15 @@ static int stmmac_pltfr_probe(struct platform_device *pdev) return PTR_ERR(priv); } + /* Copy IRQ values to priv structure which is now avaialble */ + priv->dev->irq = irq; + priv->wol_irq = wol_irq; + priv->lpi_irq = lpi_irq; + /* Get MAC address if available (DT) */ if (mac) memcpy(priv->dev->dev_addr, mac, ETH_ALEN); - /* Get the MAC information */ - priv->dev->irq = platform_get_irq_byname(pdev, "macirq"); - if (priv->dev->irq < 0) { - if (priv->dev->irq != -EPROBE_DEFER) { - netdev_err(priv->dev, - "MAC IRQ configuration information not found\n"); - } - return priv->dev->irq; - } - - /* - * On some platforms e.g. SPEAr the wake up irq differs from the mac irq - * The external wake up irq can be passed through the platform code - * named as "eth_wake_irq" - * - * In case the wake up interrupt is not passed from the platform - * so the driver will continue to use the mac irq (ndev->irq) - */ - priv->wol_irq = platform_get_irq_byname(pdev, "eth_wake_irq"); - if (priv->wol_irq < 0) { - if (priv->wol_irq == -EPROBE_DEFER) - return -EPROBE_DEFER; - priv->wol_irq = priv->dev->irq; - } - - priv->lpi_irq = platform_get_irq_byname(pdev, "eth_lpi"); - if (priv->lpi_irq == -EPROBE_DEFER) - return -EPROBE_DEFER; - platform_set_drvdata(pdev, priv->dev); pr_debug("STMMAC platform driver registration completed"); diff --git a/drivers/net/ethernet/wiznet/w5100.c b/drivers/net/ethernet/wiznet/w5100.c index a495931a66a1..0e0fbb5842b3 100644 --- a/drivers/net/ethernet/wiznet/w5100.c +++ b/drivers/net/ethernet/wiznet/w5100.c @@ -498,9 +498,9 @@ static int w5100_napi_poll(struct napi_struct *napi, int budget) } if (rx_count < budget) { + napi_complete(napi); w5100_write(priv, W5100_IMR, IR_S0); mmiowb(); - napi_complete(napi); } return rx_count; diff --git a/drivers/net/ethernet/wiznet/w5300.c b/drivers/net/ethernet/wiznet/w5300.c index 09322d9db578..4b310002258d 100644 --- a/drivers/net/ethernet/wiznet/w5300.c +++ b/drivers/net/ethernet/wiznet/w5300.c @@ -418,9 +418,9 @@ static int w5300_napi_poll(struct napi_struct *napi, int budget) } if (rx_count < budget) { + napi_complete(napi); w5300_write(priv, W5300_IMR, IR_S0); mmiowb(); - napi_complete(napi); } return rx_count; diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c index f1ee71e22241..7d394846afc2 100644 --- a/drivers/net/team/team.c +++ b/drivers/net/team/team.c @@ -1730,11 +1730,11 @@ static int team_set_mac_address(struct net_device *dev, void *p) if (dev->type == ARPHRD_ETHER && !is_valid_ether_addr(addr->sa_data)) return -EADDRNOTAVAIL; memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); - rcu_read_lock(); - list_for_each_entry_rcu(port, &team->port_list, list) + mutex_lock(&team->lock); + list_for_each_entry(port, &team->port_list, list) if (team->ops.port_change_dev_addr) team->ops.port_change_dev_addr(team, port); - rcu_read_unlock(); + mutex_unlock(&team->lock); return 0; } diff --git a/drivers/net/usb/cx82310_eth.c b/drivers/net/usb/cx82310_eth.c index 3eed708a6182..fe48f4c51373 100644 --- a/drivers/net/usb/cx82310_eth.c +++ b/drivers/net/usb/cx82310_eth.c @@ -300,9 +300,18 @@ static const struct driver_info cx82310_info = { .tx_fixup = cx82310_tx_fixup, }; +#define USB_DEVICE_CLASS(vend, prod, cl, sc, pr) \ + .match_flags = USB_DEVICE_ID_MATCH_DEVICE | \ + USB_DEVICE_ID_MATCH_DEV_INFO, \ + .idVendor = (vend), \ + .idProduct = (prod), \ + .bDeviceClass = (cl), \ + .bDeviceSubClass = (sc), \ + .bDeviceProtocol = (pr) + static const struct usb_device_id products[] = { { - USB_DEVICE_AND_INTERFACE_INFO(0x0572, 0xcb01, 0xff, 0, 0), + USB_DEVICE_CLASS(0x0572, 0xcb01, 0xff, 0, 0), .driver_info = (unsigned long) &cx82310_info }, { }, diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index f1ff3666f090..59b0e9754ae3 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -1448,8 +1448,10 @@ static void virtnet_free_queues(struct virtnet_info *vi) { int i; - for (i = 0; i < vi->max_queue_pairs; i++) + for (i = 0; i < vi->max_queue_pairs; i++) { + napi_hash_del(&vi->rq[i].napi); netif_napi_del(&vi->rq[i].napi); + } kfree(vi->rq); kfree(vi->sq); @@ -1948,11 +1950,8 @@ static int virtnet_freeze(struct virtio_device *vdev) cancel_delayed_work_sync(&vi->refill); if (netif_running(vi->dev)) { - for (i = 0; i < vi->max_queue_pairs; i++) { + for (i = 0; i < vi->max_queue_pairs; i++) napi_disable(&vi->rq[i].napi); - napi_hash_del(&vi->rq[i].napi); - netif_napi_del(&vi->rq[i].napi); - } } remove_vq_common(vi); diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c index 1e0a775ea882..f8528a4cf54f 100644 --- a/drivers/net/vxlan.c +++ b/drivers/net/vxlan.c @@ -1218,7 +1218,7 @@ static int vxlan_udp_encap_recv(struct sock *sk, struct sk_buff *skb) goto drop; flags &= ~VXLAN_HF_RCO; - vni &= VXLAN_VID_MASK; + vni &= VXLAN_VNI_MASK; } /* For backwards compatibility, only allow reserved fields to be @@ -1239,7 +1239,7 @@ static int vxlan_udp_encap_recv(struct sock *sk, struct sk_buff *skb) flags &= ~VXLAN_GBP_USED_BITS; } - if (flags || (vni & ~VXLAN_VID_MASK)) { + if (flags || vni & ~VXLAN_VNI_MASK) { /* If there are any unprocessed flags remaining treat * this as a malformed packet. This behavior diverges from * VXLAN RFC (RFC7348) which stipulates that bits in reserved diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c index ccbdb05b28cd..75345c1e8c34 100644 --- a/drivers/net/wireless/b43/main.c +++ b/drivers/net/wireless/b43/main.c @@ -5370,6 +5370,7 @@ static void b43_supported_bands(struct b43_wldev *dev, bool *have_2ghz_phy, case 0x432a: /* BCM4321 */ case 0x432d: /* BCM4322 */ case 0x4352: /* BCM43222 */ + case 0x435a: /* BCM43228 */ case 0x4333: /* BCM4331 */ case 0x43a2: /* BCM4360 */ case 0x43b3: /* BCM4352 */ diff --git a/drivers/net/wireless/brcm80211/brcmfmac/vendor.c b/drivers/net/wireless/brcm80211/brcmfmac/vendor.c index 50cdf7090198..8eff2753abad 100644 --- a/drivers/net/wireless/brcm80211/brcmfmac/vendor.c +++ b/drivers/net/wireless/brcm80211/brcmfmac/vendor.c @@ -39,13 +39,22 @@ static int brcmf_cfg80211_vndr_cmds_dcmd_handler(struct wiphy *wiphy, void *dcmd_buf = NULL, *wr_pointer; u16 msglen, maxmsglen = PAGE_SIZE - 0x100; - brcmf_dbg(TRACE, "cmd %x set %d len %d\n", cmdhdr->cmd, cmdhdr->set, - cmdhdr->len); + if (len < sizeof(*cmdhdr)) { + brcmf_err("vendor command too short: %d\n", len); + return -EINVAL; + } vif = container_of(wdev, struct brcmf_cfg80211_vif, wdev); ifp = vif->ifp; - len -= sizeof(struct brcmf_vndr_dcmd_hdr); + brcmf_dbg(TRACE, "ifidx=%d, cmd=%d\n", ifp->ifidx, cmdhdr->cmd); + + if (cmdhdr->offset > len) { + brcmf_err("bad buffer offset %d > %d\n", cmdhdr->offset, len); + return -EINVAL; + } + + len -= cmdhdr->offset; ret_len = cmdhdr->len; if (ret_len > 0 || len > 0) { if (len > BRCMF_DCMD_MAXLEN) { diff --git a/drivers/net/wireless/iwlwifi/iwl-1000.c b/drivers/net/wireless/iwlwifi/iwl-1000.c index c3817fae16c0..06f6cc08f451 100644 --- a/drivers/net/wireless/iwlwifi/iwl-1000.c +++ b/drivers/net/wireless/iwlwifi/iwl-1000.c @@ -95,7 +95,8 @@ static const struct iwl_eeprom_params iwl1000_eeprom_params = { .nvm_calib_ver = EEPROM_1000_TX_POWER_VERSION, \ .base_params = &iwl1000_base_params, \ .eeprom_params = &iwl1000_eeprom_params, \ - .led_mode = IWL_LED_BLINK + .led_mode = IWL_LED_BLINK, \ + .max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K const struct iwl_cfg iwl1000_bgn_cfg = { .name = "Intel(R) Centrino(R) Wireless-N 1000 BGN", @@ -121,7 +122,8 @@ const struct iwl_cfg iwl1000_bg_cfg = { .base_params = &iwl1000_base_params, \ .eeprom_params = &iwl1000_eeprom_params, \ .led_mode = IWL_LED_RF_STATE, \ - .rx_with_siso_diversity = true + .rx_with_siso_diversity = true, \ + .max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K const struct iwl_cfg iwl100_bgn_cfg = { .name = "Intel(R) Centrino(R) Wireless-N 100 BGN", diff --git a/drivers/net/wireless/iwlwifi/iwl-2000.c b/drivers/net/wireless/iwlwifi/iwl-2000.c index 21e5d0843a62..890b95f497d6 100644 --- a/drivers/net/wireless/iwlwifi/iwl-2000.c +++ b/drivers/net/wireless/iwlwifi/iwl-2000.c @@ -123,7 +123,9 @@ static const struct iwl_eeprom_params iwl20x0_eeprom_params = { .nvm_calib_ver = EEPROM_2000_TX_POWER_VERSION, \ .base_params = &iwl2000_base_params, \ .eeprom_params = &iwl20x0_eeprom_params, \ - .led_mode = IWL_LED_RF_STATE + .led_mode = IWL_LED_RF_STATE, \ + .max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K + const struct iwl_cfg iwl2000_2bgn_cfg = { .name = "Intel(R) Centrino(R) Wireless-N 2200 BGN", @@ -149,7 +151,8 @@ const struct iwl_cfg iwl2000_2bgn_d_cfg = { .nvm_calib_ver = EEPROM_2000_TX_POWER_VERSION, \ .base_params = &iwl2030_base_params, \ .eeprom_params = &iwl20x0_eeprom_params, \ - .led_mode = IWL_LED_RF_STATE + .led_mode = IWL_LED_RF_STATE, \ + .max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K const struct iwl_cfg iwl2030_2bgn_cfg = { .name = "Intel(R) Centrino(R) Wireless-N 2230 BGN", @@ -170,7 +173,8 @@ const struct iwl_cfg iwl2030_2bgn_cfg = { .base_params = &iwl2000_base_params, \ .eeprom_params = &iwl20x0_eeprom_params, \ .led_mode = IWL_LED_RF_STATE, \ - .rx_with_siso_diversity = true + .rx_with_siso_diversity = true, \ + .max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K const struct iwl_cfg iwl105_bgn_cfg = { .name = "Intel(R) Centrino(R) Wireless-N 105 BGN", @@ -197,7 +201,8 @@ const struct iwl_cfg iwl105_bgn_d_cfg = { .base_params = &iwl2030_base_params, \ .eeprom_params = &iwl20x0_eeprom_params, \ .led_mode = IWL_LED_RF_STATE, \ - .rx_with_siso_diversity = true + .rx_with_siso_diversity = true, \ + .max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K const struct iwl_cfg iwl135_bgn_cfg = { .name = "Intel(R) Centrino(R) Wireless-N 135 BGN", diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c index 332bbede39e5..724194e23414 100644 --- a/drivers/net/wireless/iwlwifi/iwl-5000.c +++ b/drivers/net/wireless/iwlwifi/iwl-5000.c @@ -93,7 +93,8 @@ static const struct iwl_eeprom_params iwl5000_eeprom_params = { .nvm_calib_ver = EEPROM_5000_TX_POWER_VERSION, \ .base_params = &iwl5000_base_params, \ .eeprom_params = &iwl5000_eeprom_params, \ - .led_mode = IWL_LED_BLINK + .led_mode = IWL_LED_BLINK, \ + .max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K const struct iwl_cfg iwl5300_agn_cfg = { .name = "Intel(R) Ultimate N WiFi Link 5300 AGN", @@ -158,7 +159,8 @@ const struct iwl_cfg iwl5350_agn_cfg = { .base_params = &iwl5000_base_params, \ .eeprom_params = &iwl5000_eeprom_params, \ .led_mode = IWL_LED_BLINK, \ - .internal_wimax_coex = true + .internal_wimax_coex = true, \ + .max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K const struct iwl_cfg iwl5150_agn_cfg = { .name = "Intel(R) WiMAX/WiFi Link 5150 AGN", diff --git a/drivers/net/wireless/iwlwifi/iwl-6000.c b/drivers/net/wireless/iwlwifi/iwl-6000.c index 8f2c3c8c6b84..21b2630763dc 100644 --- a/drivers/net/wireless/iwlwifi/iwl-6000.c +++ b/drivers/net/wireless/iwlwifi/iwl-6000.c @@ -145,7 +145,8 @@ static const struct iwl_eeprom_params iwl6000_eeprom_params = { .nvm_calib_ver = EEPROM_6005_TX_POWER_VERSION, \ .base_params = &iwl6000_g2_base_params, \ .eeprom_params = &iwl6000_eeprom_params, \ - .led_mode = IWL_LED_RF_STATE + .led_mode = IWL_LED_RF_STATE, \ + .max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K const struct iwl_cfg iwl6005_2agn_cfg = { .name = "Intel(R) Centrino(R) Advanced-N 6205 AGN", @@ -199,7 +200,8 @@ const struct iwl_cfg iwl6005_2agn_mow2_cfg = { .nvm_calib_ver = EEPROM_6030_TX_POWER_VERSION, \ .base_params = &iwl6000_g2_base_params, \ .eeprom_params = &iwl6000_eeprom_params, \ - .led_mode = IWL_LED_RF_STATE + .led_mode = IWL_LED_RF_STATE, \ + .max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K const struct iwl_cfg iwl6030_2agn_cfg = { .name = "Intel(R) Centrino(R) Advanced-N 6230 AGN", @@ -235,7 +237,8 @@ const struct iwl_cfg iwl6030_2bg_cfg = { .nvm_calib_ver = EEPROM_6030_TX_POWER_VERSION, \ .base_params = &iwl6000_g2_base_params, \ .eeprom_params = &iwl6000_eeprom_params, \ - .led_mode = IWL_LED_RF_STATE + .led_mode = IWL_LED_RF_STATE, \ + .max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K const struct iwl_cfg iwl6035_2agn_cfg = { .name = "Intel(R) Centrino(R) Advanced-N 6235 AGN", @@ -290,7 +293,8 @@ const struct iwl_cfg iwl130_bg_cfg = { .nvm_calib_ver = EEPROM_6000_TX_POWER_VERSION, \ .base_params = &iwl6000_base_params, \ .eeprom_params = &iwl6000_eeprom_params, \ - .led_mode = IWL_LED_BLINK + .led_mode = IWL_LED_BLINK, \ + .max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K const struct iwl_cfg iwl6000i_2agn_cfg = { .name = "Intel(R) Centrino(R) Advanced-N 6200 AGN", @@ -322,7 +326,8 @@ const struct iwl_cfg iwl6000i_2bg_cfg = { .base_params = &iwl6050_base_params, \ .eeprom_params = &iwl6000_eeprom_params, \ .led_mode = IWL_LED_BLINK, \ - .internal_wimax_coex = true + .internal_wimax_coex = true, \ + .max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K const struct iwl_cfg iwl6050_2agn_cfg = { .name = "Intel(R) Centrino(R) Advanced-N + WiMAX 6250 AGN", @@ -347,7 +352,8 @@ const struct iwl_cfg iwl6050_2abg_cfg = { .base_params = &iwl6050_base_params, \ .eeprom_params = &iwl6000_eeprom_params, \ .led_mode = IWL_LED_BLINK, \ - .internal_wimax_coex = true + .internal_wimax_coex = true, \ + .max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K const struct iwl_cfg iwl6150_bgn_cfg = { .name = "Intel(R) Centrino(R) Wireless-N + WiMAX 6150 BGN", diff --git a/drivers/net/wireless/iwlwifi/mvm/coex.c b/drivers/net/wireless/iwlwifi/mvm/coex.c index 1ec4d55155f7..7810c41cf9a7 100644 --- a/drivers/net/wireless/iwlwifi/mvm/coex.c +++ b/drivers/net/wireless/iwlwifi/mvm/coex.c @@ -793,7 +793,8 @@ static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac, if (!vif->bss_conf.assoc) smps_mode = IEEE80211_SMPS_AUTOMATIC; - if (IWL_COEX_IS_RRC_ON(mvm->last_bt_notif.ttc_rrc_status, + if (mvmvif->phy_ctxt && + IWL_COEX_IS_RRC_ON(mvm->last_bt_notif.ttc_rrc_status, mvmvif->phy_ctxt->id)) smps_mode = IEEE80211_SMPS_AUTOMATIC; diff --git a/drivers/net/wireless/iwlwifi/mvm/coex_legacy.c b/drivers/net/wireless/iwlwifi/mvm/coex_legacy.c index d530ef3da107..542ee74f290a 100644 --- a/drivers/net/wireless/iwlwifi/mvm/coex_legacy.c +++ b/drivers/net/wireless/iwlwifi/mvm/coex_legacy.c @@ -832,7 +832,8 @@ static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac, if (!vif->bss_conf.assoc) smps_mode = IEEE80211_SMPS_AUTOMATIC; - if (data->notif->rrc_enabled & BIT(mvmvif->phy_ctxt->id)) + if (mvmvif->phy_ctxt && + data->notif->rrc_enabled & BIT(mvmvif->phy_ctxt->id)) smps_mode = IEEE80211_SMPS_AUTOMATIC; IWL_DEBUG_COEX(data->mvm, diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c index 1ff7ec08532d..09654e73a533 100644 --- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c +++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c @@ -405,7 +405,10 @@ int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm) hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &mvm->nvm_data->bands[IEEE80211_BAND_5GHZ]; - if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_BEAMFORMER) + if ((mvm->fw->ucode_capa.capa[0] & + IWL_UCODE_TLV_CAPA_BEAMFORMER) && + (mvm->fw->ucode_capa.api[0] & + IWL_UCODE_TLV_API_LQ_SS_PARAMS)) hw->wiphy->bands[IEEE80211_BAND_5GHZ]->vht_cap.cap |= IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE; } @@ -2215,7 +2218,19 @@ static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw, mutex_lock(&mvm->mutex); - iwl_mvm_cancel_scan(mvm); + /* Due to a race condition, it's possible that mac80211 asks + * us to stop a hw_scan when it's already stopped. This can + * happen, for instance, if we stopped the scan ourselves, + * called ieee80211_scan_completed() and the userspace called + * cancel scan scan before ieee80211_scan_work() could run. + * To handle that, simply return if the scan is not running. + */ + /* FIXME: for now, we ignore this race for UMAC scans, since + * they don't set the scan_status. + */ + if ((mvm->scan_status == IWL_MVM_SCAN_OS) || + (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)) + iwl_mvm_cancel_scan(mvm); mutex_unlock(&mvm->mutex); } @@ -2559,12 +2574,29 @@ static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw, int ret; mutex_lock(&mvm->mutex); + + /* Due to a race condition, it's possible that mac80211 asks + * us to stop a sched_scan when it's already stopped. This + * can happen, for instance, if we stopped the scan ourselves, + * called ieee80211_sched_scan_stopped() and the userspace called + * stop sched scan scan before ieee80211_sched_scan_stopped_work() + * could run. To handle this, simply return if the scan is + * not running. + */ + /* FIXME: for now, we ignore this race for UMAC scans, since + * they don't set the scan_status. + */ + if (mvm->scan_status != IWL_MVM_SCAN_SCHED && + !(mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)) { + mutex_unlock(&mvm->mutex); + return 0; + } + ret = iwl_mvm_scan_offload_stop(mvm, false); mutex_unlock(&mvm->mutex); iwl_mvm_wait_for_async_handlers(mvm); return ret; - } static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw, diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.c b/drivers/net/wireless/iwlwifi/mvm/rs.c index 194bd1f939ca..efa9688a4cf1 100644 --- a/drivers/net/wireless/iwlwifi/mvm/rs.c +++ b/drivers/net/wireless/iwlwifi/mvm/rs.c @@ -134,9 +134,12 @@ enum rs_column_mode { #define MAX_NEXT_COLUMNS 7 #define MAX_COLUMN_CHECKS 3 +struct rs_tx_column; + typedef bool (*allow_column_func_t) (struct iwl_mvm *mvm, struct ieee80211_sta *sta, - struct iwl_scale_tbl_info *tbl); + struct iwl_scale_tbl_info *tbl, + const struct rs_tx_column *next_col); struct rs_tx_column { enum rs_column_mode mode; @@ -147,13 +150,15 @@ struct rs_tx_column { }; static bool rs_ant_allow(struct iwl_mvm *mvm, struct ieee80211_sta *sta, - struct iwl_scale_tbl_info *tbl) + struct iwl_scale_tbl_info *tbl, + const struct rs_tx_column *next_col) { - return iwl_mvm_bt_coex_is_ant_avail(mvm, tbl->rate.ant); + return iwl_mvm_bt_coex_is_ant_avail(mvm, next_col->ant); } static bool rs_mimo_allow(struct iwl_mvm *mvm, struct ieee80211_sta *sta, - struct iwl_scale_tbl_info *tbl) + struct iwl_scale_tbl_info *tbl, + const struct rs_tx_column *next_col) { if (!sta->ht_cap.ht_supported) return false; @@ -171,7 +176,8 @@ static bool rs_mimo_allow(struct iwl_mvm *mvm, struct ieee80211_sta *sta, } static bool rs_siso_allow(struct iwl_mvm *mvm, struct ieee80211_sta *sta, - struct iwl_scale_tbl_info *tbl) + struct iwl_scale_tbl_info *tbl, + const struct rs_tx_column *next_col) { if (!sta->ht_cap.ht_supported) return false; @@ -180,7 +186,8 @@ static bool rs_siso_allow(struct iwl_mvm *mvm, struct ieee80211_sta *sta, } static bool rs_sgi_allow(struct iwl_mvm *mvm, struct ieee80211_sta *sta, - struct iwl_scale_tbl_info *tbl) + struct iwl_scale_tbl_info *tbl, + const struct rs_tx_column *next_col) { struct rs_rate *rate = &tbl->rate; struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap; @@ -1590,7 +1597,7 @@ static enum rs_column rs_get_next_column(struct iwl_mvm *mvm, for (j = 0; j < MAX_COLUMN_CHECKS; j++) { allow_func = next_col->checks[j]; - if (allow_func && !allow_func(mvm, sta, tbl)) + if (allow_func && !allow_func(mvm, sta, tbl, next_col)) break; } diff --git a/drivers/net/wireless/iwlwifi/mvm/scan.c b/drivers/net/wireless/iwlwifi/mvm/scan.c index 7e9aa3cb3254..c47c8051da77 100644 --- a/drivers/net/wireless/iwlwifi/mvm/scan.c +++ b/drivers/net/wireless/iwlwifi/mvm/scan.c @@ -1128,8 +1128,10 @@ int iwl_mvm_scan_offload_stop(struct iwl_mvm *mvm, bool notify) if (mvm->scan_status == IWL_MVM_SCAN_NONE) return 0; - if (iwl_mvm_is_radio_killed(mvm)) + if (iwl_mvm_is_radio_killed(mvm)) { + ret = 0; goto out; + } if (mvm->scan_status != IWL_MVM_SCAN_SCHED && (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN) || @@ -1148,16 +1150,14 @@ int iwl_mvm_scan_offload_stop(struct iwl_mvm *mvm, bool notify) IWL_DEBUG_SCAN(mvm, "Send stop %sscan failed %d\n", sched ? "offloaded " : "", ret); iwl_remove_notification(&mvm->notif_wait, &wait_scan_done); - return ret; + goto out; } IWL_DEBUG_SCAN(mvm, "Successfully sent stop %sscan\n", sched ? "offloaded " : ""); ret = iwl_wait_notification(&mvm->notif_wait, &wait_scan_done, 1 * HZ); - if (ret) - return ret; - +out: /* * Clear the scan status so the next scan requests will succeed. This * also ensures the Rx handler doesn't do anything, as the scan was @@ -1167,7 +1167,6 @@ int iwl_mvm_scan_offload_stop(struct iwl_mvm *mvm, bool notify) if (mvm->scan_status == IWL_MVM_SCAN_OS) iwl_mvm_unref(mvm, IWL_MVM_REF_SCAN); -out: mvm->scan_status = IWL_MVM_SCAN_NONE; if (notify) { @@ -1177,7 +1176,7 @@ out: ieee80211_scan_completed(mvm->hw, true); } - return 0; + return ret; } static void iwl_mvm_unified_scan_fill_tx_cmd(struct iwl_mvm *mvm, diff --git a/drivers/net/wireless/iwlwifi/mvm/time-event.c b/drivers/net/wireless/iwlwifi/mvm/time-event.c index 54fafbf9a711..f8d6f306dd76 100644 --- a/drivers/net/wireless/iwlwifi/mvm/time-event.c +++ b/drivers/net/wireless/iwlwifi/mvm/time-event.c @@ -750,8 +750,7 @@ void iwl_mvm_stop_roc(struct iwl_mvm *mvm) * request */ list_for_each_entry(te_data, &mvm->time_event_list, list) { - if (te_data->vif->type == NL80211_IFTYPE_P2P_DEVICE && - te_data->running) { + if (te_data->vif->type == NL80211_IFTYPE_P2P_DEVICE) { mvmvif = iwl_mvm_vif_from_mac80211(te_data->vif); is_p2p = true; goto remove_te; @@ -766,10 +765,8 @@ void iwl_mvm_stop_roc(struct iwl_mvm *mvm) * request */ list_for_each_entry(te_data, &mvm->aux_roc_te_list, list) { - if (te_data->running) { - mvmvif = iwl_mvm_vif_from_mac80211(te_data->vif); - goto remove_te; - } + mvmvif = iwl_mvm_vif_from_mac80211(te_data->vif); + goto remove_te; } remove_te: diff --git a/drivers/net/wireless/rtlwifi/base.c b/drivers/net/wireless/rtlwifi/base.c index 1d4677460711..074f716020aa 100644 --- a/drivers/net/wireless/rtlwifi/base.c +++ b/drivers/net/wireless/rtlwifi/base.c @@ -1386,8 +1386,11 @@ u8 rtl_is_special_data(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx) } return true; - } else if (0x86DD == ether_type) { - return true; + } else if (ETH_P_IPV6 == ether_type) { + /* TODO: Handle any IPv6 cases that need special handling. + * For now, always return false + */ + goto end; } end: diff --git a/drivers/net/xen-netback/interface.c b/drivers/net/xen-netback/interface.c index f38227afe099..3aa8648080c8 100644 --- a/drivers/net/xen-netback/interface.c +++ b/drivers/net/xen-netback/interface.c @@ -340,12 +340,11 @@ static void xenvif_get_ethtool_stats(struct net_device *dev, unsigned int num_queues = vif->num_queues; int i; unsigned int queue_index; - struct xenvif_stats *vif_stats; for (i = 0; i < ARRAY_SIZE(xenvif_stats); i++) { unsigned long accum = 0; for (queue_index = 0; queue_index < num_queues; ++queue_index) { - vif_stats = &vif->queues[queue_index].stats; + void *vif_stats = &vif->queues[queue_index].stats; accum += *(unsigned long *)(vif_stats + xenvif_stats[i].offset); } data[i] = accum; diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c index c4d68d768408..997cf0901ac2 100644 --- a/drivers/net/xen-netback/netback.c +++ b/drivers/net/xen-netback/netback.c @@ -96,6 +96,7 @@ static void xenvif_idx_release(struct xenvif_queue *queue, u16 pending_idx, static void make_tx_response(struct xenvif_queue *queue, struct xen_netif_tx_request *txp, s8 st); +static void push_tx_responses(struct xenvif_queue *queue); static inline int tx_work_todo(struct xenvif_queue *queue); @@ -655,15 +656,10 @@ static void xenvif_tx_err(struct xenvif_queue *queue, unsigned long flags; do { - int notify; - spin_lock_irqsave(&queue->response_lock, flags); make_tx_response(queue, txp, XEN_NETIF_RSP_ERROR); - RING_PUSH_RESPONSES_AND_CHECK_NOTIFY(&queue->tx, notify); + push_tx_responses(queue); spin_unlock_irqrestore(&queue->response_lock, flags); - if (notify) - notify_remote_via_irq(queue->tx_irq); - if (cons == end) break; txp = RING_GET_REQUEST(&queue->tx, cons++); @@ -1349,7 +1345,7 @@ static int xenvif_handle_frag_list(struct xenvif_queue *queue, struct sk_buff *s { unsigned int offset = skb_headlen(skb); skb_frag_t frags[MAX_SKB_FRAGS]; - int i; + int i, f; struct ubuf_info *uarg; struct sk_buff *nskb = skb_shinfo(skb)->frag_list; @@ -1389,23 +1385,25 @@ static int xenvif_handle_frag_list(struct xenvif_queue *queue, struct sk_buff *s frags[i].page_offset = 0; skb_frag_size_set(&frags[i], len); } - /* swap out with old one */ - memcpy(skb_shinfo(skb)->frags, - frags, - i * sizeof(skb_frag_t)); - skb_shinfo(skb)->nr_frags = i; - skb->truesize += i * PAGE_SIZE; - /* remove traces of mapped pages and frag_list */ + /* Copied all the bits from the frag list -- free it. */ skb_frag_list_init(skb); + xenvif_skb_zerocopy_prepare(queue, nskb); + kfree_skb(nskb); + + /* Release all the original (foreign) frags. */ + for (f = 0; f < skb_shinfo(skb)->nr_frags; f++) + skb_frag_unref(skb, f); uarg = skb_shinfo(skb)->destructor_arg; /* increase inflight counter to offset decrement in callback */ atomic_inc(&queue->inflight_packets); uarg->callback(uarg, true); skb_shinfo(skb)->destructor_arg = NULL; - xenvif_skb_zerocopy_prepare(queue, nskb); - kfree_skb(nskb); + /* Fill the skb with the new (local) frags. */ + memcpy(skb_shinfo(skb)->frags, frags, i * sizeof(skb_frag_t)); + skb_shinfo(skb)->nr_frags = i; + skb->truesize += i * PAGE_SIZE; return 0; } @@ -1655,7 +1653,6 @@ static void xenvif_idx_release(struct xenvif_queue *queue, u16 pending_idx, { struct pending_tx_info *pending_tx_info; pending_ring_idx_t index; - int notify; unsigned long flags; pending_tx_info = &queue->pending_tx_info[pending_idx]; @@ -1671,12 +1668,9 @@ static void xenvif_idx_release(struct xenvif_queue *queue, u16 pending_idx, index = pending_index(queue->pending_prod++); queue->pending_ring[index] = pending_idx; - RING_PUSH_RESPONSES_AND_CHECK_NOTIFY(&queue->tx, notify); + push_tx_responses(queue); spin_unlock_irqrestore(&queue->response_lock, flags); - - if (notify) - notify_remote_via_irq(queue->tx_irq); } @@ -1697,6 +1691,15 @@ static void make_tx_response(struct xenvif_queue *queue, queue->tx.rsp_prod_pvt = ++i; } +static void push_tx_responses(struct xenvif_queue *queue) +{ + int notify; + + RING_PUSH_RESPONSES_AND_CHECK_NOTIFY(&queue->tx, notify); + if (notify) + notify_remote_via_irq(queue->tx_irq); +} + static struct xen_netif_rx_response *make_rx_response(struct xenvif_queue *queue, u16 id, s8 st, diff --git a/drivers/of/Kconfig b/drivers/of/Kconfig index 38d1c51f58b1..7bcaeec876c0 100644 --- a/drivers/of/Kconfig +++ b/drivers/of/Kconfig @@ -84,8 +84,7 @@ config OF_RESOLVE bool config OF_OVERLAY - bool - depends on OF + bool "Device Tree overlays" select OF_DYNAMIC select OF_RESOLVE diff --git a/drivers/of/base.c b/drivers/of/base.c index 0a8aeb8523fe..8f165b112e03 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -714,16 +714,12 @@ static struct device_node *__of_find_node_by_path(struct device_node *parent, const char *path) { struct device_node *child; - int len = strchrnul(path, '/') - path; - int term; + int len; + len = strcspn(path, "/:"); if (!len) return NULL; - term = strchrnul(path, ':') - path; - if (term < len) - len = term; - __for_each_child_of_node(parent, child) { const char *name = strrchr(child->full_name, '/'); if (WARN(!name, "malformed device_node %s\n", child->full_name)) @@ -768,8 +764,12 @@ struct device_node *of_find_node_opts_by_path(const char *path, const char **opt /* The path could begin with an alias */ if (*path != '/') { - char *p = strchrnul(path, '/'); - int len = separator ? separator - path : p - path; + int len; + const char *p = separator; + + if (!p) + p = strchrnul(path, '/'); + len = p - path; /* of_aliases must not be NULL */ if (!of_aliases) @@ -794,6 +794,8 @@ struct device_node *of_find_node_opts_by_path(const char *path, const char **opt path++; /* Increment past '/' delimiter */ np = __of_find_node_by_path(np, path); path = strchrnul(path, '/'); + if (separator && separator < path) + break; } raw_spin_unlock_irqrestore(&devtree_lock, flags); return np; diff --git a/drivers/of/irq.c b/drivers/of/irq.c index 0d7765807f49..1a7980692f25 100644 --- a/drivers/of/irq.c +++ b/drivers/of/irq.c @@ -290,7 +290,7 @@ int of_irq_parse_one(struct device_node *device, int index, struct of_phandle_ar struct device_node *p; const __be32 *intspec, *tmp, *addr; u32 intsize, intlen; - int i, res = -EINVAL; + int i, res; pr_debug("of_irq_parse_one: dev=%s, index=%d\n", of_node_full_name(device), index); @@ -323,15 +323,19 @@ int of_irq_parse_one(struct device_node *device, int index, struct of_phandle_ar /* Get size of interrupt specifier */ tmp = of_get_property(p, "#interrupt-cells", NULL); - if (tmp == NULL) + if (tmp == NULL) { + res = -EINVAL; goto out; + } intsize = be32_to_cpu(*tmp); pr_debug(" intsize=%d intlen=%d\n", intsize, intlen); /* Check index */ - if ((index + 1) * intsize > intlen) + if ((index + 1) * intsize > intlen) { + res = -EINVAL; goto out; + } /* Copy intspec into irq structure */ intspec += index * intsize; diff --git a/drivers/of/overlay.c b/drivers/of/overlay.c index 352b4f28f82c..dee9270ba547 100644 --- a/drivers/of/overlay.c +++ b/drivers/of/overlay.c @@ -19,6 +19,7 @@ #include <linux/string.h> #include <linux/slab.h> #include <linux/err.h> +#include <linux/idr.h> #include "of_private.h" @@ -85,7 +86,7 @@ static int of_overlay_apply_single_device_node(struct of_overlay *ov, struct device_node *target, struct device_node *child) { const char *cname; - struct device_node *tchild, *grandchild; + struct device_node *tchild; int ret = 0; cname = kbasename(child->full_name); diff --git a/drivers/of/unittest.c b/drivers/of/unittest.c index 0cf9a236d438..52c45c7df07f 100644 --- a/drivers/of/unittest.c +++ b/drivers/of/unittest.c @@ -92,6 +92,16 @@ static void __init of_selftest_find_node_by_name(void) "option path test failed\n"); of_node_put(np); + np = of_find_node_opts_by_path("/testcase-data:test/option", &options); + selftest(np && !strcmp("test/option", options), + "option path test, subcase #1 failed\n"); + of_node_put(np); + + np = of_find_node_opts_by_path("/testcase-data/testcase-device1:test/option", &options); + selftest(np && !strcmp("test/option", options), + "option path test, subcase #2 failed\n"); + of_node_put(np); + np = of_find_node_opts_by_path("/testcase-data:testoption", NULL); selftest(np, "NULL option path test failed\n"); of_node_put(np); @@ -102,6 +112,12 @@ static void __init of_selftest_find_node_by_name(void) "option alias path test failed\n"); of_node_put(np); + np = of_find_node_opts_by_path("testcase-alias:test/alias/option", + &options); + selftest(np && !strcmp("test/alias/option", options), + "option alias path test, subcase #1 failed\n"); + of_node_put(np); + np = of_find_node_opts_by_path("testcase-alias:testaliasoption", NULL); selftest(np, "NULL option alias path test failed\n"); of_node_put(np); @@ -378,9 +394,9 @@ static void __init of_selftest_property_string(void) rc = of_property_match_string(np, "phandle-list-names", "first"); selftest(rc == 0, "first expected:0 got:%i\n", rc); rc = of_property_match_string(np, "phandle-list-names", "second"); - selftest(rc == 1, "second expected:0 got:%i\n", rc); + selftest(rc == 1, "second expected:1 got:%i\n", rc); rc = of_property_match_string(np, "phandle-list-names", "third"); - selftest(rc == 2, "third expected:0 got:%i\n", rc); + selftest(rc == 2, "third expected:2 got:%i\n", rc); rc = of_property_match_string(np, "phandle-list-names", "fourth"); selftest(rc == -ENODATA, "unmatched string; rc=%i\n", rc); rc = of_property_match_string(np, "missing-property", "blah"); @@ -478,7 +494,6 @@ static void __init of_selftest_changeset(void) struct device_node *n1, *n2, *n21, *nremove, *parent, *np; struct of_changeset chgset; - of_changeset_init(&chgset); n1 = __of_node_dup(NULL, "/testcase-data/changeset/n1"); selftest(n1, "testcase setup failure\n"); n2 = __of_node_dup(NULL, "/testcase-data/changeset/n2"); @@ -979,7 +994,7 @@ static int of_path_platform_device_exists(const char *path) return pdev != NULL; } -#if IS_ENABLED(CONFIG_I2C) +#if IS_BUILTIN(CONFIG_I2C) /* get the i2c client device instantiated at the path */ static struct i2c_client *of_path_to_i2c_client(const char *path) @@ -1445,7 +1460,7 @@ static void of_selftest_overlay_11(void) return; } -#if IS_ENABLED(CONFIG_I2C) && IS_ENABLED(CONFIG_OF_OVERLAY) +#if IS_BUILTIN(CONFIG_I2C) && IS_ENABLED(CONFIG_OF_OVERLAY) struct selftest_i2c_bus_data { struct platform_device *pdev; @@ -1584,7 +1599,7 @@ static struct i2c_driver selftest_i2c_dev_driver = { .id_table = selftest_i2c_dev_id, }; -#if IS_ENABLED(CONFIG_I2C_MUX) +#if IS_BUILTIN(CONFIG_I2C_MUX) struct selftest_i2c_mux_data { int nchans; @@ -1695,7 +1710,7 @@ static int of_selftest_overlay_i2c_init(void) "could not register selftest i2c bus driver\n")) return ret; -#if IS_ENABLED(CONFIG_I2C_MUX) +#if IS_BUILTIN(CONFIG_I2C_MUX) ret = i2c_add_driver(&selftest_i2c_mux_driver); if (selftest(ret == 0, "could not register selftest i2c mux driver\n")) @@ -1707,7 +1722,7 @@ static int of_selftest_overlay_i2c_init(void) static void of_selftest_overlay_i2c_cleanup(void) { -#if IS_ENABLED(CONFIG_I2C_MUX) +#if IS_BUILTIN(CONFIG_I2C_MUX) i2c_del_driver(&selftest_i2c_mux_driver); #endif platform_driver_unregister(&selftest_i2c_bus_driver); @@ -1814,7 +1829,7 @@ static void __init of_selftest_overlay(void) of_selftest_overlay_10(); of_selftest_overlay_11(); -#if IS_ENABLED(CONFIG_I2C) +#if IS_BUILTIN(CONFIG_I2C) if (selftest(of_selftest_overlay_i2c_init() == 0, "i2c init failed\n")) goto out; diff --git a/drivers/pci/host/pci-xgene.c b/drivers/pci/host/pci-xgene.c index aab55474dd0d..ee082c0366ec 100644 --- a/drivers/pci/host/pci-xgene.c +++ b/drivers/pci/host/pci-xgene.c @@ -127,7 +127,7 @@ static bool xgene_pcie_hide_rc_bars(struct pci_bus *bus, int offset) return false; } -static int xgene_pcie_map_bus(struct pci_bus *bus, unsigned int devfn, +static void __iomem *xgene_pcie_map_bus(struct pci_bus *bus, unsigned int devfn, int offset) { struct xgene_pcie_port *port = bus->sysdata; @@ -137,7 +137,7 @@ static int xgene_pcie_map_bus(struct pci_bus *bus, unsigned int devfn, return NULL; xgene_pcie_set_rtdid_reg(bus, devfn); - return xgene_pcie_get_cfg_base(bus); + return xgene_pcie_get_cfg_base(bus) + offset; } static struct pci_ops xgene_pcie_ops = { diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c index aa012fb3834b..312f23a8429c 100644 --- a/drivers/pci/pci-sysfs.c +++ b/drivers/pci/pci-sysfs.c @@ -521,7 +521,8 @@ static ssize_t driver_override_store(struct device *dev, struct pci_dev *pdev = to_pci_dev(dev); char *driver_override, *old = pdev->driver_override, *cp; - if (count > PATH_MAX) + /* We need to keep extra room for a newline */ + if (count >= (PAGE_SIZE - 1)) return -EINVAL; driver_override = kstrndup(buf, count, GFP_KERNEL); @@ -549,7 +550,7 @@ static ssize_t driver_override_show(struct device *dev, { struct pci_dev *pdev = to_pci_dev(dev); - return sprintf(buf, "%s\n", pdev->driver_override); + return snprintf(buf, PAGE_SIZE, "%s\n", pdev->driver_override); } static DEVICE_ATTR_RW(driver_override); diff --git a/drivers/pcmcia/Kconfig b/drivers/pcmcia/Kconfig index 3bb49252a098..45f67c63d385 100644 --- a/drivers/pcmcia/Kconfig +++ b/drivers/pcmcia/Kconfig @@ -69,8 +69,7 @@ config YENTA tristate "CardBus yenta-compatible bridge support" depends on PCI select CARDBUS if !EXPERT - select PCCARD_NONSTATIC if PCMCIA != n && ISA - select PCCARD_PCI if PCMCIA !=n && !ISA + select PCCARD_NONSTATIC if PCMCIA != n ---help--- This option enables support for CardBus host bridges. Virtually all modern PCMCIA bridges are CardBus compatible. A "bridge" is @@ -110,8 +109,7 @@ config YENTA_TOSHIBA config PD6729 tristate "Cirrus PD6729 compatible bridge support" depends on PCMCIA && PCI - select PCCARD_NONSTATIC if PCMCIA != n && ISA - select PCCARD_PCI if PCMCIA !=n && !ISA + select PCCARD_NONSTATIC help This provides support for the Cirrus PD6729 PCI-to-PCMCIA bridge device, found in some older laptops and PCMCIA card readers. @@ -119,8 +117,7 @@ config PD6729 config I82092 tristate "i82092 compatible bridge support" depends on PCMCIA && PCI - select PCCARD_NONSTATIC if PCMCIA != n && ISA - select PCCARD_PCI if PCMCIA !=n && !ISA + select PCCARD_NONSTATIC help This provides support for the Intel I82092AA PCI-to-PCMCIA bridge device, found in some older laptops and more commonly in evaluation boards for the @@ -291,9 +288,6 @@ config ELECTRA_CF Say Y here to support the CompactFlash controller on the PA Semi Electra eval board. -config PCCARD_PCI - bool - config PCCARD_NONSTATIC bool diff --git a/drivers/pcmcia/Makefile b/drivers/pcmcia/Makefile index f1a7ca04d89e..27e94b30cf96 100644 --- a/drivers/pcmcia/Makefile +++ b/drivers/pcmcia/Makefile @@ -12,7 +12,6 @@ obj-$(CONFIG_PCMCIA) += pcmcia.o pcmcia_rsrc-y += rsrc_mgr.o pcmcia_rsrc-$(CONFIG_PCCARD_NONSTATIC) += rsrc_nonstatic.o pcmcia_rsrc-$(CONFIG_PCCARD_IODYN) += rsrc_iodyn.o -pcmcia_rsrc-$(CONFIG_PCCARD_PCI) += rsrc_pci.o obj-$(CONFIG_PCCARD) += pcmcia_rsrc.o diff --git a/drivers/pcmcia/rsrc_pci.c b/drivers/pcmcia/rsrc_pci.c deleted file mode 100644 index 1f67b3ba70fb..000000000000 --- a/drivers/pcmcia/rsrc_pci.c +++ /dev/null @@ -1,173 +0,0 @@ -#include <linux/slab.h> -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/pci.h> - -#include <pcmcia/ss.h> -#include <pcmcia/cistpl.h> -#include "cs_internal.h" - - -struct pcmcia_align_data { - unsigned long mask; - unsigned long offset; -}; - -static resource_size_t pcmcia_align(void *align_data, - const struct resource *res, - resource_size_t size, resource_size_t align) -{ - struct pcmcia_align_data *data = align_data; - resource_size_t start; - - start = (res->start & ~data->mask) + data->offset; - if (start < res->start) - start += data->mask + 1; - return start; -} - -static struct resource *find_io_region(struct pcmcia_socket *s, - unsigned long base, int num, - unsigned long align) -{ - struct resource *res = pcmcia_make_resource(0, num, IORESOURCE_IO, - dev_name(&s->dev)); - struct pcmcia_align_data data; - int ret; - - data.mask = align - 1; - data.offset = base & data.mask; - - ret = pci_bus_alloc_resource(s->cb_dev->bus, res, num, 1, - base, 0, pcmcia_align, &data); - if (ret != 0) { - kfree(res); - res = NULL; - } - return res; -} - -static int res_pci_find_io(struct pcmcia_socket *s, unsigned int attr, - unsigned int *base, unsigned int num, - unsigned int align, struct resource **parent) -{ - int i, ret = 0; - - /* Check for an already-allocated window that must conflict with - * what was asked for. It is a hack because it does not catch all - * potential conflicts, just the most obvious ones. - */ - for (i = 0; i < MAX_IO_WIN; i++) { - if (!s->io[i].res) - continue; - - if (!*base) - continue; - - if ((s->io[i].res->start & (align-1)) == *base) - return -EBUSY; - } - - for (i = 0; i < MAX_IO_WIN; i++) { - struct resource *res = s->io[i].res; - unsigned int try; - - if (res && (res->flags & IORESOURCE_BITS) != - (attr & IORESOURCE_BITS)) - continue; - - if (!res) { - if (align == 0) - align = 0x10000; - - res = s->io[i].res = find_io_region(s, *base, num, - align); - if (!res) - return -EINVAL; - - *base = res->start; - s->io[i].res->flags = - ((res->flags & ~IORESOURCE_BITS) | - (attr & IORESOURCE_BITS)); - s->io[i].InUse = num; - *parent = res; - return 0; - } - - /* Try to extend top of window */ - try = res->end + 1; - if ((*base == 0) || (*base == try)) { - ret = adjust_resource(s->io[i].res, res->start, - resource_size(res) + num); - if (ret) - continue; - *base = try; - s->io[i].InUse += num; - *parent = res; - return 0; - } - - /* Try to extend bottom of window */ - try = res->start - num; - if ((*base == 0) || (*base == try)) { - ret = adjust_resource(s->io[i].res, - res->start - num, - resource_size(res) + num); - if (ret) - continue; - *base = try; - s->io[i].InUse += num; - *parent = res; - return 0; - } - } - return -EINVAL; -} - -static struct resource *res_pci_find_mem(u_long base, u_long num, - u_long align, int low, struct pcmcia_socket *s) -{ - struct resource *res = pcmcia_make_resource(0, num, IORESOURCE_MEM, - dev_name(&s->dev)); - struct pcmcia_align_data data; - unsigned long min; - int ret; - - if (align < 0x20000) - align = 0x20000; - data.mask = align - 1; - data.offset = base & data.mask; - - min = 0; - if (!low) - min = 0x100000UL; - - ret = pci_bus_alloc_resource(s->cb_dev->bus, - res, num, 1, min, 0, - pcmcia_align, &data); - - if (ret != 0) { - kfree(res); - res = NULL; - } - return res; -} - - -static int res_pci_init(struct pcmcia_socket *s) -{ - if (!s->cb_dev || !(s->features & SS_CAP_PAGE_REGS)) { - dev_err(&s->dev, "not supported by res_pci\n"); - return -EOPNOTSUPP; - } - return 0; -} - -struct pccard_resource_ops pccard_nonstatic_ops = { - .validate_mem = NULL, - .find_io = res_pci_find_io, - .find_mem = res_pci_find_mem, - .init = res_pci_init, - .exit = NULL, -}; -EXPORT_SYMBOL(pccard_nonstatic_ops); diff --git a/drivers/phy/phy-armada375-usb2.c b/drivers/phy/phy-armada375-usb2.c index 7c99ca256f05..8ccc3952c13d 100644 --- a/drivers/phy/phy-armada375-usb2.c +++ b/drivers/phy/phy-armada375-usb2.c @@ -37,7 +37,7 @@ static int armada375_usb_phy_init(struct phy *phy) struct armada375_cluster_phy *cluster_phy; u32 reg; - cluster_phy = dev_get_drvdata(phy->dev.parent); + cluster_phy = phy_get_drvdata(phy); if (!cluster_phy) return -ENODEV; @@ -131,6 +131,7 @@ static int armada375_usb_phy_probe(struct platform_device *pdev) cluster_phy->reg = usb_cluster_base; dev_set_drvdata(dev, cluster_phy); + phy_set_drvdata(phy, cluster_phy); phy_provider = devm_of_phy_provider_register(&pdev->dev, armada375_usb_phy_xlate); diff --git a/drivers/phy/phy-core.c b/drivers/phy/phy-core.c index a12d35338313..3791838f4bd4 100644 --- a/drivers/phy/phy-core.c +++ b/drivers/phy/phy-core.c @@ -52,7 +52,9 @@ static void devm_phy_consume(struct device *dev, void *res) static int devm_phy_match(struct device *dev, void *res, void *match_data) { - return res == match_data; + struct phy **phy = res; + + return *phy == match_data; } /** @@ -223,6 +225,7 @@ int phy_init(struct phy *phy) ret = phy_pm_runtime_get_sync(phy); if (ret < 0 && ret != -ENOTSUPP) return ret; + ret = 0; /* Override possible ret == -ENOTSUPP */ mutex_lock(&phy->mutex); if (phy->init_count == 0 && phy->ops->init) { @@ -231,8 +234,6 @@ int phy_init(struct phy *phy) dev_err(&phy->dev, "phy init failed --> %d\n", ret); goto out; } - } else { - ret = 0; /* Override possible ret == -ENOTSUPP */ } ++phy->init_count; @@ -253,6 +254,7 @@ int phy_exit(struct phy *phy) ret = phy_pm_runtime_get_sync(phy); if (ret < 0 && ret != -ENOTSUPP) return ret; + ret = 0; /* Override possible ret == -ENOTSUPP */ mutex_lock(&phy->mutex); if (phy->init_count == 1 && phy->ops->exit) { @@ -287,6 +289,7 @@ int phy_power_on(struct phy *phy) ret = phy_pm_runtime_get_sync(phy); if (ret < 0 && ret != -ENOTSUPP) return ret; + ret = 0; /* Override possible ret == -ENOTSUPP */ mutex_lock(&phy->mutex); if (phy->power_count == 0 && phy->ops->power_on) { @@ -295,8 +298,6 @@ int phy_power_on(struct phy *phy) dev_err(&phy->dev, "phy poweron failed --> %d\n", ret); goto out; } - } else { - ret = 0; /* Override possible ret == -ENOTSUPP */ } ++phy->power_count; mutex_unlock(&phy->mutex); diff --git a/drivers/phy/phy-exynos-dp-video.c b/drivers/phy/phy-exynos-dp-video.c index f86cbe68ddaf..179cbf9451aa 100644 --- a/drivers/phy/phy-exynos-dp-video.c +++ b/drivers/phy/phy-exynos-dp-video.c @@ -30,28 +30,13 @@ struct exynos_dp_video_phy { const struct exynos_dp_video_phy_drvdata *drvdata; }; -static void exynos_dp_video_phy_pwr_isol(struct exynos_dp_video_phy *state, - unsigned int on) -{ - unsigned int val; - - if (IS_ERR(state->regs)) - return; - - val = on ? 0 : EXYNOS5_PHY_ENABLE; - - regmap_update_bits(state->regs, state->drvdata->phy_ctrl_offset, - EXYNOS5_PHY_ENABLE, val); -} - static int exynos_dp_video_phy_power_on(struct phy *phy) { struct exynos_dp_video_phy *state = phy_get_drvdata(phy); /* Disable power isolation on DP-PHY */ - exynos_dp_video_phy_pwr_isol(state, 0); - - return 0; + return regmap_update_bits(state->regs, state->drvdata->phy_ctrl_offset, + EXYNOS5_PHY_ENABLE, EXYNOS5_PHY_ENABLE); } static int exynos_dp_video_phy_power_off(struct phy *phy) @@ -59,9 +44,8 @@ static int exynos_dp_video_phy_power_off(struct phy *phy) struct exynos_dp_video_phy *state = phy_get_drvdata(phy); /* Enable power isolation on DP-PHY */ - exynos_dp_video_phy_pwr_isol(state, 1); - - return 0; + return regmap_update_bits(state->regs, state->drvdata->phy_ctrl_offset, + EXYNOS5_PHY_ENABLE, 0); } static struct phy_ops exynos_dp_video_phy_ops = { diff --git a/drivers/phy/phy-exynos-mipi-video.c b/drivers/phy/phy-exynos-mipi-video.c index f017b2f2a54e..df7519a39ba0 100644 --- a/drivers/phy/phy-exynos-mipi-video.c +++ b/drivers/phy/phy-exynos-mipi-video.c @@ -43,7 +43,6 @@ struct exynos_mipi_video_phy { } phys[EXYNOS_MIPI_PHYS_NUM]; spinlock_t slock; void __iomem *regs; - struct mutex mutex; struct regmap *regmap; }; @@ -59,8 +58,9 @@ static int __set_phy_state(struct exynos_mipi_video_phy *state, else reset = EXYNOS4_MIPI_PHY_SRESETN; - if (state->regmap) { - mutex_lock(&state->mutex); + spin_lock(&state->slock); + + if (!IS_ERR(state->regmap)) { regmap_read(state->regmap, offset, &val); if (on) val |= reset; @@ -72,11 +72,9 @@ static int __set_phy_state(struct exynos_mipi_video_phy *state, else if (!(val & EXYNOS4_MIPI_PHY_RESET_MASK)) val &= ~EXYNOS4_MIPI_PHY_ENABLE; regmap_write(state->regmap, offset, val); - mutex_unlock(&state->mutex); } else { addr = state->regs + EXYNOS_MIPI_PHY_CONTROL(id / 2); - spin_lock(&state->slock); val = readl(addr); if (on) val |= reset; @@ -90,9 +88,9 @@ static int __set_phy_state(struct exynos_mipi_video_phy *state, val &= ~EXYNOS4_MIPI_PHY_ENABLE; writel(val, addr); - spin_unlock(&state->slock); } + spin_unlock(&state->slock); return 0; } @@ -158,7 +156,6 @@ static int exynos_mipi_video_phy_probe(struct platform_device *pdev) dev_set_drvdata(dev, state); spin_lock_init(&state->slock); - mutex_init(&state->mutex); for (i = 0; i < EXYNOS_MIPI_PHYS_NUM; i++) { struct phy *phy = devm_phy_create(dev, NULL, diff --git a/drivers/phy/phy-exynos4210-usb2.c b/drivers/phy/phy-exynos4210-usb2.c index 236a52ad94eb..f30bbb0fb3b2 100644 --- a/drivers/phy/phy-exynos4210-usb2.c +++ b/drivers/phy/phy-exynos4210-usb2.c @@ -250,7 +250,6 @@ static const struct samsung_usb2_common_phy exynos4210_phys[] = { .power_on = exynos4210_power_on, .power_off = exynos4210_power_off, }, - {}, }; const struct samsung_usb2_phy_config exynos4210_usb2_phy_config = { diff --git a/drivers/phy/phy-exynos4x12-usb2.c b/drivers/phy/phy-exynos4x12-usb2.c index 0b9de88579b1..765da90a536f 100644 --- a/drivers/phy/phy-exynos4x12-usb2.c +++ b/drivers/phy/phy-exynos4x12-usb2.c @@ -361,7 +361,6 @@ static const struct samsung_usb2_common_phy exynos4x12_phys[] = { .power_on = exynos4x12_power_on, .power_off = exynos4x12_power_off, }, - {}, }; const struct samsung_usb2_phy_config exynos3250_usb2_phy_config = { diff --git a/drivers/phy/phy-exynos5-usbdrd.c b/drivers/phy/phy-exynos5-usbdrd.c index 04374018425f..e2a0be750ad9 100644 --- a/drivers/phy/phy-exynos5-usbdrd.c +++ b/drivers/phy/phy-exynos5-usbdrd.c @@ -531,7 +531,7 @@ static struct phy *exynos5_usbdrd_phy_xlate(struct device *dev, { struct exynos5_usbdrd_phy *phy_drd = dev_get_drvdata(dev); - if (WARN_ON(args->args[0] > EXYNOS5_DRDPHYS_NUM)) + if (WARN_ON(args->args[0] >= EXYNOS5_DRDPHYS_NUM)) return ERR_PTR(-ENODEV); return phy_drd->phys[args->args[0]].phy; diff --git a/drivers/phy/phy-exynos5250-usb2.c b/drivers/phy/phy-exynos5250-usb2.c index 1c139aa0d074..2ed1735a076a 100644 --- a/drivers/phy/phy-exynos5250-usb2.c +++ b/drivers/phy/phy-exynos5250-usb2.c @@ -391,7 +391,6 @@ static const struct samsung_usb2_common_phy exynos5250_phys[] = { .power_on = exynos5250_power_on, .power_off = exynos5250_power_off, }, - {}, }; const struct samsung_usb2_phy_config exynos5250_usb2_phy_config = { diff --git a/drivers/phy/phy-hix5hd2-sata.c b/drivers/phy/phy-hix5hd2-sata.c index 34915b4202f1..d6b22659cac1 100644 --- a/drivers/phy/phy-hix5hd2-sata.c +++ b/drivers/phy/phy-hix5hd2-sata.c @@ -147,6 +147,9 @@ static int hix5hd2_sata_phy_probe(struct platform_device *pdev) return -ENOMEM; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!res) + return -EINVAL; + priv->base = devm_ioremap(dev, res->start, resource_size(res)); if (!priv->base) return -ENOMEM; diff --git a/drivers/phy/phy-miphy28lp.c b/drivers/phy/phy-miphy28lp.c index 9b2848e6115d..933435214acc 100644 --- a/drivers/phy/phy-miphy28lp.c +++ b/drivers/phy/phy-miphy28lp.c @@ -228,6 +228,7 @@ struct miphy28lp_dev { struct regmap *regmap; struct mutex miphy_mutex; struct miphy28lp_phy **phys; + int nphys; }; struct miphy_initval { @@ -1116,7 +1117,7 @@ static struct phy *miphy28lp_xlate(struct device *dev, return ERR_PTR(-EINVAL); } - for (index = 0; index < of_get_child_count(dev->of_node); index++) + for (index = 0; index < miphy_dev->nphys; index++) if (phynode == miphy_dev->phys[index]->phy->dev.of_node) { miphy_phy = miphy_dev->phys[index]; break; @@ -1138,6 +1139,7 @@ static struct phy *miphy28lp_xlate(struct device *dev, static struct phy_ops miphy28lp_ops = { .init = miphy28lp_init, + .owner = THIS_MODULE, }; static int miphy28lp_probe_resets(struct device_node *node, @@ -1200,16 +1202,15 @@ static int miphy28lp_probe(struct platform_device *pdev) struct miphy28lp_dev *miphy_dev; struct phy_provider *provider; struct phy *phy; - int chancount, port = 0; - int ret; + int ret, port = 0; miphy_dev = devm_kzalloc(&pdev->dev, sizeof(*miphy_dev), GFP_KERNEL); if (!miphy_dev) return -ENOMEM; - chancount = of_get_child_count(np); - miphy_dev->phys = devm_kzalloc(&pdev->dev, sizeof(phy) * chancount, - GFP_KERNEL); + miphy_dev->nphys = of_get_child_count(np); + miphy_dev->phys = devm_kcalloc(&pdev->dev, miphy_dev->nphys, + sizeof(*miphy_dev->phys), GFP_KERNEL); if (!miphy_dev->phys) return -ENOMEM; diff --git a/drivers/phy/phy-miphy365x.c b/drivers/phy/phy-miphy365x.c index 6c80154e8bff..51b459db9137 100644 --- a/drivers/phy/phy-miphy365x.c +++ b/drivers/phy/phy-miphy365x.c @@ -150,6 +150,7 @@ struct miphy365x_dev { struct regmap *regmap; struct mutex miphy_mutex; struct miphy365x_phy **phys; + int nphys; }; /* @@ -485,7 +486,7 @@ static struct phy *miphy365x_xlate(struct device *dev, return ERR_PTR(-EINVAL); } - for (index = 0; index < of_get_child_count(dev->of_node); index++) + for (index = 0; index < miphy_dev->nphys; index++) if (phynode == miphy_dev->phys[index]->phy->dev.of_node) { miphy_phy = miphy_dev->phys[index]; break; @@ -541,16 +542,15 @@ static int miphy365x_probe(struct platform_device *pdev) struct miphy365x_dev *miphy_dev; struct phy_provider *provider; struct phy *phy; - int chancount, port = 0; - int ret; + int ret, port = 0; miphy_dev = devm_kzalloc(&pdev->dev, sizeof(*miphy_dev), GFP_KERNEL); if (!miphy_dev) return -ENOMEM; - chancount = of_get_child_count(np); - miphy_dev->phys = devm_kzalloc(&pdev->dev, sizeof(phy) * chancount, - GFP_KERNEL); + miphy_dev->nphys = of_get_child_count(np); + miphy_dev->phys = devm_kcalloc(&pdev->dev, miphy_dev->nphys, + sizeof(*miphy_dev->phys), GFP_KERNEL); if (!miphy_dev->phys) return -ENOMEM; diff --git a/drivers/phy/phy-omap-control.c b/drivers/phy/phy-omap-control.c index efe724f97e02..93252e053a31 100644 --- a/drivers/phy/phy-omap-control.c +++ b/drivers/phy/phy-omap-control.c @@ -360,7 +360,7 @@ static void __exit omap_control_phy_exit(void) } module_exit(omap_control_phy_exit); -MODULE_ALIAS("platform: omap_control_phy"); +MODULE_ALIAS("platform:omap_control_phy"); MODULE_AUTHOR("Texas Instruments Inc."); MODULE_DESCRIPTION("OMAP Control Module PHY Driver"); MODULE_LICENSE("GPL v2"); diff --git a/drivers/phy/phy-omap-usb2.c b/drivers/phy/phy-omap-usb2.c index 6f4aef3db248..4757e765696a 100644 --- a/drivers/phy/phy-omap-usb2.c +++ b/drivers/phy/phy-omap-usb2.c @@ -296,10 +296,11 @@ static int omap_usb2_probe(struct platform_device *pdev) dev_warn(&pdev->dev, "found usb_otg_ss_refclk960m, please fix DTS\n"); } - } else { - clk_prepare(phy->optclk); } + if (!IS_ERR(phy->optclk)) + clk_prepare(phy->optclk); + usb_add_phy_dev(&phy->phy); return 0; @@ -383,7 +384,7 @@ static struct platform_driver omap_usb2_driver = { module_platform_driver(omap_usb2_driver); -MODULE_ALIAS("platform: omap_usb2"); +MODULE_ALIAS("platform:omap_usb2"); MODULE_AUTHOR("Texas Instruments Inc."); MODULE_DESCRIPTION("OMAP USB2 phy driver"); MODULE_LICENSE("GPL v2"); diff --git a/drivers/phy/phy-rockchip-usb.c b/drivers/phy/phy-rockchip-usb.c index 22011c3b6a4b..7d4c33643768 100644 --- a/drivers/phy/phy-rockchip-usb.c +++ b/drivers/phy/phy-rockchip-usb.c @@ -61,8 +61,6 @@ static int rockchip_usb_phy_power_off(struct phy *_phy) return ret; clk_disable_unprepare(phy->clk); - if (ret) - return ret; return 0; } @@ -78,8 +76,10 @@ static int rockchip_usb_phy_power_on(struct phy *_phy) /* Power up usb phy analog blocks by set siddq 0 */ ret = rockchip_usb_phy_power(phy, 0); - if (ret) + if (ret) { + clk_disable_unprepare(phy->clk); return ret; + } return 0; } diff --git a/drivers/phy/phy-ti-pipe3.c b/drivers/phy/phy-ti-pipe3.c index 95c88f929f27..2ba610b72ca2 100644 --- a/drivers/phy/phy-ti-pipe3.c +++ b/drivers/phy/phy-ti-pipe3.c @@ -165,15 +165,11 @@ static int ti_pipe3_dpll_wait_lock(struct ti_pipe3 *phy) cpu_relax(); val = ti_pipe3_readl(phy->pll_ctrl_base, PLL_STATUS); if (val & PLL_LOCK) - break; + return 0; } while (!time_after(jiffies, timeout)); - if (!(val & PLL_LOCK)) { - dev_err(phy->dev, "DPLL failed to lock\n"); - return -EBUSY; - } - - return 0; + dev_err(phy->dev, "DPLL failed to lock\n"); + return -EBUSY; } static int ti_pipe3_dpll_program(struct ti_pipe3 *phy) @@ -608,7 +604,7 @@ static struct platform_driver ti_pipe3_driver = { module_platform_driver(ti_pipe3_driver); -MODULE_ALIAS("platform: ti_pipe3"); +MODULE_ALIAS("platform:ti_pipe3"); MODULE_AUTHOR("Texas Instruments Inc."); MODULE_DESCRIPTION("TI PIPE3 phy driver"); MODULE_LICENSE("GPL v2"); diff --git a/drivers/phy/phy-twl4030-usb.c b/drivers/phy/phy-twl4030-usb.c index 8e87f54671f3..bc42d6a8939f 100644 --- a/drivers/phy/phy-twl4030-usb.c +++ b/drivers/phy/phy-twl4030-usb.c @@ -666,7 +666,6 @@ static int twl4030_usb_probe(struct platform_device *pdev) twl->dev = &pdev->dev; twl->irq = platform_get_irq(pdev, 0); twl->vbus_supplied = false; - twl->linkstat = -EINVAL; twl->linkstat = OMAP_MUSB_UNKNOWN; twl->phy.dev = twl->dev; diff --git a/drivers/phy/phy-xgene.c b/drivers/phy/phy-xgene.c index 29214a36ea28..2263cd010032 100644 --- a/drivers/phy/phy-xgene.c +++ b/drivers/phy/phy-xgene.c @@ -1704,7 +1704,6 @@ static int xgene_phy_probe(struct platform_device *pdev) for (i = 0; i < MAX_LANE; i++) ctx->sata_param.speed[i] = 2; /* Default to Gen3 */ - ctx->dev = &pdev->dev; platform_set_drvdata(pdev, ctx); ctx->phy = devm_phy_create(ctx->dev, NULL, &xgene_phy_ops); diff --git a/drivers/pinctrl/intel/pinctrl-baytrail.c b/drivers/pinctrl/intel/pinctrl-baytrail.c index 5afe03e28b91..2062c224e32f 100644 --- a/drivers/pinctrl/intel/pinctrl-baytrail.c +++ b/drivers/pinctrl/intel/pinctrl-baytrail.c @@ -66,6 +66,10 @@ #define BYT_DIR_MASK (BIT(1) | BIT(2)) #define BYT_TRIG_MASK (BIT(26) | BIT(25) | BIT(24)) +#define BYT_CONF0_RESTORE_MASK (BYT_DIRECT_IRQ_EN | BYT_TRIG_MASK | \ + BYT_PIN_MUX) +#define BYT_VAL_RESTORE_MASK (BYT_DIR_MASK | BYT_LEVEL) + #define BYT_NGPIO_SCORE 102 #define BYT_NGPIO_NCORE 28 #define BYT_NGPIO_SUS 44 @@ -134,12 +138,18 @@ static struct pinctrl_gpio_range byt_ranges[] = { }, }; +struct byt_gpio_pin_context { + u32 conf0; + u32 val; +}; + struct byt_gpio { struct gpio_chip chip; struct platform_device *pdev; spinlock_t lock; void __iomem *reg_base; struct pinctrl_gpio_range *range; + struct byt_gpio_pin_context *saved_context; }; #define to_byt_gpio(c) container_of(c, struct byt_gpio, chip) @@ -158,40 +168,62 @@ static void __iomem *byt_gpio_reg(struct gpio_chip *chip, unsigned offset, return vg->reg_base + reg_offset + reg; } -static bool is_special_pin(struct byt_gpio *vg, unsigned offset) +static void byt_gpio_clear_triggering(struct byt_gpio *vg, unsigned offset) +{ + void __iomem *reg = byt_gpio_reg(&vg->chip, offset, BYT_CONF0_REG); + unsigned long flags; + u32 value; + + spin_lock_irqsave(&vg->lock, flags); + value = readl(reg); + value &= ~(BYT_TRIG_POS | BYT_TRIG_NEG | BYT_TRIG_LVL); + writel(value, reg); + spin_unlock_irqrestore(&vg->lock, flags); +} + +static u32 byt_get_gpio_mux(struct byt_gpio *vg, unsigned offset) { /* SCORE pin 92-93 */ if (!strcmp(vg->range->name, BYT_SCORE_ACPI_UID) && offset >= 92 && offset <= 93) - return true; + return 1; /* SUS pin 11-21 */ if (!strcmp(vg->range->name, BYT_SUS_ACPI_UID) && offset >= 11 && offset <= 21) - return true; + return 1; - return false; + return 0; } static int byt_gpio_request(struct gpio_chip *chip, unsigned offset) { struct byt_gpio *vg = to_byt_gpio(chip); void __iomem *reg = byt_gpio_reg(chip, offset, BYT_CONF0_REG); - u32 value; - bool special; + u32 value, gpio_mux; /* * In most cases, func pin mux 000 means GPIO function. * But, some pins may have func pin mux 001 represents - * GPIO function. Only allow user to export pin with - * func pin mux preset as GPIO function by BIOS/FW. + * GPIO function. + * + * Because there are devices out there where some pins were not + * configured correctly we allow changing the mux value from + * request (but print out warning about that). */ value = readl(reg) & BYT_PIN_MUX; - special = is_special_pin(vg, offset); - if ((special && value != 1) || (!special && value)) { - dev_err(&vg->pdev->dev, - "pin %u cannot be used as GPIO.\n", offset); - return -EINVAL; + gpio_mux = byt_get_gpio_mux(vg, offset); + if (WARN_ON(gpio_mux != value)) { + unsigned long flags; + + spin_lock_irqsave(&vg->lock, flags); + value = readl(reg) & ~BYT_PIN_MUX; + value |= gpio_mux; + writel(value, reg); + spin_unlock_irqrestore(&vg->lock, flags); + + dev_warn(&vg->pdev->dev, + "pin %u forcibly re-configured as GPIO\n", offset); } pm_runtime_get(&vg->pdev->dev); @@ -202,14 +234,8 @@ static int byt_gpio_request(struct gpio_chip *chip, unsigned offset) static void byt_gpio_free(struct gpio_chip *chip, unsigned offset) { struct byt_gpio *vg = to_byt_gpio(chip); - void __iomem *reg = byt_gpio_reg(&vg->chip, offset, BYT_CONF0_REG); - u32 value; - - /* clear interrupt triggering */ - value = readl(reg); - value &= ~(BYT_TRIG_POS | BYT_TRIG_NEG | BYT_TRIG_LVL); - writel(value, reg); + byt_gpio_clear_triggering(vg, offset); pm_runtime_put(&vg->pdev->dev); } @@ -236,23 +262,13 @@ static int byt_irq_type(struct irq_data *d, unsigned type) value &= ~(BYT_DIRECT_IRQ_EN | BYT_TRIG_POS | BYT_TRIG_NEG | BYT_TRIG_LVL); - switch (type) { - case IRQ_TYPE_LEVEL_HIGH: - value |= BYT_TRIG_LVL; - case IRQ_TYPE_EDGE_RISING: - value |= BYT_TRIG_POS; - break; - case IRQ_TYPE_LEVEL_LOW: - value |= BYT_TRIG_LVL; - case IRQ_TYPE_EDGE_FALLING: - value |= BYT_TRIG_NEG; - break; - case IRQ_TYPE_EDGE_BOTH: - value |= (BYT_TRIG_NEG | BYT_TRIG_POS); - break; - } writel(value, reg); + if (type & IRQ_TYPE_EDGE_BOTH) + __irq_set_handler_locked(d->irq, handle_edge_irq); + else if (type & IRQ_TYPE_LEVEL_MASK) + __irq_set_handler_locked(d->irq, handle_level_irq); + spin_unlock_irqrestore(&vg->lock, flags); return 0; @@ -410,58 +426,80 @@ static void byt_gpio_irq_handler(unsigned irq, struct irq_desc *desc) struct irq_data *data = irq_desc_get_irq_data(desc); struct byt_gpio *vg = to_byt_gpio(irq_desc_get_handler_data(desc)); struct irq_chip *chip = irq_data_get_irq_chip(data); - u32 base, pin, mask; + u32 base, pin; void __iomem *reg; - u32 pending; + unsigned long pending; unsigned virq; - int looplimit = 0; /* check from GPIO controller which pin triggered the interrupt */ for (base = 0; base < vg->chip.ngpio; base += 32) { - reg = byt_gpio_reg(&vg->chip, base, BYT_INT_STAT_REG); - - while ((pending = readl(reg))) { - pin = __ffs(pending); - mask = BIT(pin); - /* Clear before handling so we can't lose an edge */ - writel(mask, reg); - + pending = readl(reg); + for_each_set_bit(pin, &pending, 32) { virq = irq_find_mapping(vg->chip.irqdomain, base + pin); generic_handle_irq(virq); - - /* In case bios or user sets triggering incorretly a pin - * might remain in "interrupt triggered" state. - */ - if (looplimit++ > 32) { - dev_err(&vg->pdev->dev, - "Gpio %d interrupt flood, disabling\n", - base + pin); - - reg = byt_gpio_reg(&vg->chip, base + pin, - BYT_CONF0_REG); - mask = readl(reg); - mask &= ~(BYT_TRIG_NEG | BYT_TRIG_POS | - BYT_TRIG_LVL); - writel(mask, reg); - mask = readl(reg); /* flush */ - break; - } } } chip->irq_eoi(data); } +static void byt_irq_ack(struct irq_data *d) +{ + struct gpio_chip *gc = irq_data_get_irq_chip_data(d); + struct byt_gpio *vg = to_byt_gpio(gc); + unsigned offset = irqd_to_hwirq(d); + void __iomem *reg; + + reg = byt_gpio_reg(&vg->chip, offset, BYT_INT_STAT_REG); + writel(BIT(offset % 32), reg); +} + static void byt_irq_unmask(struct irq_data *d) { + struct gpio_chip *gc = irq_data_get_irq_chip_data(d); + struct byt_gpio *vg = to_byt_gpio(gc); + unsigned offset = irqd_to_hwirq(d); + unsigned long flags; + void __iomem *reg; + u32 value; + + spin_lock_irqsave(&vg->lock, flags); + + reg = byt_gpio_reg(&vg->chip, offset, BYT_CONF0_REG); + value = readl(reg); + + switch (irqd_get_trigger_type(d)) { + case IRQ_TYPE_LEVEL_HIGH: + value |= BYT_TRIG_LVL; + case IRQ_TYPE_EDGE_RISING: + value |= BYT_TRIG_POS; + break; + case IRQ_TYPE_LEVEL_LOW: + value |= BYT_TRIG_LVL; + case IRQ_TYPE_EDGE_FALLING: + value |= BYT_TRIG_NEG; + break; + case IRQ_TYPE_EDGE_BOTH: + value |= (BYT_TRIG_NEG | BYT_TRIG_POS); + break; + } + + writel(value, reg); + + spin_unlock_irqrestore(&vg->lock, flags); } static void byt_irq_mask(struct irq_data *d) { + struct gpio_chip *gc = irq_data_get_irq_chip_data(d); + struct byt_gpio *vg = to_byt_gpio(gc); + + byt_gpio_clear_triggering(vg, irqd_to_hwirq(d)); } static struct irq_chip byt_irqchip = { .name = "BYT-GPIO", + .irq_ack = byt_irq_ack, .irq_mask = byt_irq_mask, .irq_unmask = byt_irq_unmask, .irq_set_type = byt_irq_type, @@ -472,6 +510,21 @@ static void byt_gpio_irq_init_hw(struct byt_gpio *vg) { void __iomem *reg; u32 base, value; + int i; + + /* + * Clear interrupt triggers for all pins that are GPIOs and + * do not use direct IRQ mode. This will prevent spurious + * interrupts from misconfigured pins. + */ + for (i = 0; i < vg->chip.ngpio; i++) { + value = readl(byt_gpio_reg(&vg->chip, i, BYT_CONF0_REG)); + if ((value & BYT_PIN_MUX) == byt_get_gpio_mux(vg, i) && + !(value & BYT_DIRECT_IRQ_EN)) { + byt_gpio_clear_triggering(vg, i); + dev_dbg(&vg->pdev->dev, "disabling GPIO %d\n", i); + } + } /* clear interrupt status trigger registers */ for (base = 0; base < vg->chip.ngpio; base += 32) { @@ -541,6 +594,11 @@ static int byt_gpio_probe(struct platform_device *pdev) gc->can_sleep = false; gc->dev = dev; +#ifdef CONFIG_PM_SLEEP + vg->saved_context = devm_kcalloc(&pdev->dev, gc->ngpio, + sizeof(*vg->saved_context), GFP_KERNEL); +#endif + ret = gpiochip_add(gc); if (ret) { dev_err(&pdev->dev, "failed adding byt-gpio chip\n"); @@ -569,6 +627,69 @@ static int byt_gpio_probe(struct platform_device *pdev) return 0; } +#ifdef CONFIG_PM_SLEEP +static int byt_gpio_suspend(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct byt_gpio *vg = platform_get_drvdata(pdev); + int i; + + for (i = 0; i < vg->chip.ngpio; i++) { + void __iomem *reg; + u32 value; + + reg = byt_gpio_reg(&vg->chip, i, BYT_CONF0_REG); + value = readl(reg) & BYT_CONF0_RESTORE_MASK; + vg->saved_context[i].conf0 = value; + + reg = byt_gpio_reg(&vg->chip, i, BYT_VAL_REG); + value = readl(reg) & BYT_VAL_RESTORE_MASK; + vg->saved_context[i].val = value; + } + + return 0; +} + +static int byt_gpio_resume(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct byt_gpio *vg = platform_get_drvdata(pdev); + int i; + + for (i = 0; i < vg->chip.ngpio; i++) { + void __iomem *reg; + u32 value; + + reg = byt_gpio_reg(&vg->chip, i, BYT_CONF0_REG); + value = readl(reg); + if ((value & BYT_CONF0_RESTORE_MASK) != + vg->saved_context[i].conf0) { + value &= ~BYT_CONF0_RESTORE_MASK; + value |= vg->saved_context[i].conf0; + writel(value, reg); + dev_info(dev, "restored pin %d conf0 %#08x", i, value); + } + + reg = byt_gpio_reg(&vg->chip, i, BYT_VAL_REG); + value = readl(reg); + if ((value & BYT_VAL_RESTORE_MASK) != + vg->saved_context[i].val) { + u32 v; + + v = value & ~BYT_VAL_RESTORE_MASK; + v |= vg->saved_context[i].val; + if (v != value) { + writel(v, reg); + dev_dbg(dev, "restored pin %d val %#08x\n", + i, v); + } + } + } + + return 0; +} +#endif + static int byt_gpio_runtime_suspend(struct device *dev) { return 0; @@ -580,8 +701,9 @@ static int byt_gpio_runtime_resume(struct device *dev) } static const struct dev_pm_ops byt_gpio_pm_ops = { - .runtime_suspend = byt_gpio_runtime_suspend, - .runtime_resume = byt_gpio_runtime_resume, + SET_LATE_SYSTEM_SLEEP_PM_OPS(byt_gpio_suspend, byt_gpio_resume) + SET_RUNTIME_PM_OPS(byt_gpio_runtime_suspend, byt_gpio_runtime_resume, + NULL) }; static const struct acpi_device_id byt_gpio_acpi_match[] = { diff --git a/drivers/pinctrl/intel/pinctrl-cherryview.c b/drivers/pinctrl/intel/pinctrl-cherryview.c index 3034fd03bced..82f691eeeec4 100644 --- a/drivers/pinctrl/intel/pinctrl-cherryview.c +++ b/drivers/pinctrl/intel/pinctrl-cherryview.c @@ -1226,6 +1226,7 @@ static int chv_gpio_direction_input(struct gpio_chip *chip, unsigned offset) static int chv_gpio_direction_output(struct gpio_chip *chip, unsigned offset, int value) { + chv_gpio_set(chip, offset, value); return pinctrl_gpio_direction_output(chip->base + offset); } diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c index f4cd0b9b2438..a4814066ea08 100644 --- a/drivers/pinctrl/pinctrl-at91.c +++ b/drivers/pinctrl/pinctrl-at91.c @@ -1477,28 +1477,25 @@ static void gpio_irq_ack(struct irq_data *d) /* the interrupt is already cleared before by reading ISR */ } -static unsigned int gpio_irq_startup(struct irq_data *d) +static int gpio_irq_request_res(struct irq_data *d) { struct at91_gpio_chip *at91_gpio = irq_data_get_irq_chip_data(d); unsigned pin = d->hwirq; int ret; ret = gpiochip_lock_as_irq(&at91_gpio->chip, pin); - if (ret) { + if (ret) dev_err(at91_gpio->chip.dev, "unable to lock pind %lu IRQ\n", d->hwirq); - return ret; - } - gpio_irq_unmask(d); - return 0; + + return ret; } -static void gpio_irq_shutdown(struct irq_data *d) +static void gpio_irq_release_res(struct irq_data *d) { struct at91_gpio_chip *at91_gpio = irq_data_get_irq_chip_data(d); unsigned pin = d->hwirq; - gpio_irq_mask(d); gpiochip_unlock_as_irq(&at91_gpio->chip, pin); } @@ -1577,8 +1574,8 @@ void at91_pinctrl_gpio_resume(void) static struct irq_chip gpio_irqchip = { .name = "GPIO", .irq_ack = gpio_irq_ack, - .irq_startup = gpio_irq_startup, - .irq_shutdown = gpio_irq_shutdown, + .irq_request_resources = gpio_irq_request_res, + .irq_release_resources = gpio_irq_release_res, .irq_disable = gpio_irq_mask, .irq_mask = gpio_irq_mask, .irq_unmask = gpio_irq_unmask, diff --git a/drivers/pinctrl/sunxi/pinctrl-sun4i-a10.c b/drivers/pinctrl/sunxi/pinctrl-sun4i-a10.c index 24c5d88f943f..3c68a8e5e0dd 100644 --- a/drivers/pinctrl/sunxi/pinctrl-sun4i-a10.c +++ b/drivers/pinctrl/sunxi/pinctrl-sun4i-a10.c @@ -1011,6 +1011,7 @@ static const struct sunxi_pinctrl_desc sun4i_a10_pinctrl_data = { .pins = sun4i_a10_pins, .npins = ARRAY_SIZE(sun4i_a10_pins), .irq_banks = 1, + .irq_read_needs_mux = true, }; static int sun4i_a10_pinctrl_probe(struct platform_device *pdev) diff --git a/drivers/pinctrl/sunxi/pinctrl-sunxi.c b/drivers/pinctrl/sunxi/pinctrl-sunxi.c index 3d0744337736..f8e171b76693 100644 --- a/drivers/pinctrl/sunxi/pinctrl-sunxi.c +++ b/drivers/pinctrl/sunxi/pinctrl-sunxi.c @@ -29,6 +29,7 @@ #include <linux/slab.h> #include "../core.h" +#include "../../gpio/gpiolib.h" #include "pinctrl-sunxi.h" static struct irq_chip sunxi_pinctrl_edge_irq_chip; @@ -464,10 +465,19 @@ static int sunxi_pinctrl_gpio_direction_input(struct gpio_chip *chip, static int sunxi_pinctrl_gpio_get(struct gpio_chip *chip, unsigned offset) { struct sunxi_pinctrl *pctl = dev_get_drvdata(chip->dev); - u32 reg = sunxi_data_reg(offset); u8 index = sunxi_data_offset(offset); - u32 val = (readl(pctl->membase + reg) >> index) & DATA_PINS_MASK; + u32 set_mux = pctl->desc->irq_read_needs_mux && + test_bit(FLAG_USED_AS_IRQ, &chip->desc[offset].flags); + u32 val; + + if (set_mux) + sunxi_pmx_set(pctl->pctl_dev, offset, SUN4I_FUNC_INPUT); + + val = (readl(pctl->membase + reg) >> index) & DATA_PINS_MASK; + + if (set_mux) + sunxi_pmx_set(pctl->pctl_dev, offset, SUN4I_FUNC_IRQ); return val; } diff --git a/drivers/pinctrl/sunxi/pinctrl-sunxi.h b/drivers/pinctrl/sunxi/pinctrl-sunxi.h index 5a51523a3459..e248e81a0f9e 100644 --- a/drivers/pinctrl/sunxi/pinctrl-sunxi.h +++ b/drivers/pinctrl/sunxi/pinctrl-sunxi.h @@ -77,6 +77,9 @@ #define IRQ_LEVEL_LOW 0x03 #define IRQ_EDGE_BOTH 0x04 +#define SUN4I_FUNC_INPUT 0 +#define SUN4I_FUNC_IRQ 6 + struct sunxi_desc_function { const char *name; u8 muxval; @@ -94,6 +97,7 @@ struct sunxi_pinctrl_desc { int npins; unsigned pin_base; unsigned irq_banks; + bool irq_read_needs_mux; }; struct sunxi_pinctrl_function { diff --git a/drivers/powercap/intel_rapl.c b/drivers/powercap/intel_rapl.c index 97b5e4ee1ca4..63d4033eb683 100644 --- a/drivers/powercap/intel_rapl.c +++ b/drivers/powercap/intel_rapl.c @@ -73,7 +73,7 @@ #define TIME_WINDOW_MAX_MSEC 40000 #define TIME_WINDOW_MIN_MSEC 250 - +#define ENERGY_UNIT_SCALE 1000 /* scale from driver unit to powercap unit */ enum unit_type { ARBITRARY_UNIT, /* no translation */ POWER_UNIT, @@ -158,6 +158,7 @@ struct rapl_domain { struct rapl_power_limit rpl[NR_POWER_LIMITS]; u64 attr_map; /* track capabilities */ unsigned int state; + unsigned int domain_energy_unit; int package_id; }; #define power_zone_to_rapl_domain(_zone) \ @@ -190,6 +191,7 @@ struct rapl_defaults { void (*set_floor_freq)(struct rapl_domain *rd, bool mode); u64 (*compute_time_window)(struct rapl_package *rp, u64 val, bool to_raw); + unsigned int dram_domain_energy_unit; }; static struct rapl_defaults *rapl_defaults; @@ -227,7 +229,8 @@ static int rapl_read_data_raw(struct rapl_domain *rd, static int rapl_write_data_raw(struct rapl_domain *rd, enum rapl_primitives prim, unsigned long long value); -static u64 rapl_unit_xlate(int package, enum unit_type type, u64 value, +static u64 rapl_unit_xlate(struct rapl_domain *rd, int package, + enum unit_type type, u64 value, int to_raw); static void package_power_limit_irq_save(int package_id); @@ -305,7 +308,9 @@ static int get_energy_counter(struct powercap_zone *power_zone, u64 *energy_raw) static int get_max_energy_counter(struct powercap_zone *pcd_dev, u64 *energy) { - *energy = rapl_unit_xlate(0, ENERGY_UNIT, ENERGY_STATUS_MASK, 0); + struct rapl_domain *rd = power_zone_to_rapl_domain(pcd_dev); + + *energy = rapl_unit_xlate(rd, 0, ENERGY_UNIT, ENERGY_STATUS_MASK, 0); return 0; } @@ -639,6 +644,11 @@ static void rapl_init_domains(struct rapl_package *rp) rd->msrs[4] = MSR_DRAM_POWER_INFO; rd->rpl[0].prim_id = PL1_ENABLE; rd->rpl[0].name = pl1_name; + rd->domain_energy_unit = + rapl_defaults->dram_domain_energy_unit; + if (rd->domain_energy_unit) + pr_info("DRAM domain energy unit %dpj\n", + rd->domain_energy_unit); break; } if (mask) { @@ -648,11 +658,13 @@ static void rapl_init_domains(struct rapl_package *rp) } } -static u64 rapl_unit_xlate(int package, enum unit_type type, u64 value, +static u64 rapl_unit_xlate(struct rapl_domain *rd, int package, + enum unit_type type, u64 value, int to_raw) { u64 units = 1; struct rapl_package *rp; + u64 scale = 1; rp = find_package_by_id(package); if (!rp) @@ -663,7 +675,12 @@ static u64 rapl_unit_xlate(int package, enum unit_type type, u64 value, units = rp->power_unit; break; case ENERGY_UNIT: - units = rp->energy_unit; + scale = ENERGY_UNIT_SCALE; + /* per domain unit takes precedence */ + if (rd && rd->domain_energy_unit) + units = rd->domain_energy_unit; + else + units = rp->energy_unit; break; case TIME_UNIT: return rapl_defaults->compute_time_window(rp, value, to_raw); @@ -673,11 +690,11 @@ static u64 rapl_unit_xlate(int package, enum unit_type type, u64 value, }; if (to_raw) - return div64_u64(value, units); + return div64_u64(value, units) * scale; value *= units; - return value; + return div64_u64(value, scale); } /* in the order of enum rapl_primitives */ @@ -773,7 +790,7 @@ static int rapl_read_data_raw(struct rapl_domain *rd, final = value & rp->mask; final = final >> rp->shift; if (xlate) - *data = rapl_unit_xlate(rd->package_id, rp->unit, final, 0); + *data = rapl_unit_xlate(rd, rd->package_id, rp->unit, final, 0); else *data = final; @@ -799,7 +816,7 @@ static int rapl_write_data_raw(struct rapl_domain *rd, "failed to read msr 0x%x on cpu %d\n", msr, cpu); return -EIO; } - value = rapl_unit_xlate(rd->package_id, rp->unit, value, 1); + value = rapl_unit_xlate(rd, rd->package_id, rp->unit, value, 1); msr_val &= ~rp->mask; msr_val |= value << rp->shift; if (wrmsrl_safe_on_cpu(cpu, msr, msr_val)) { @@ -818,7 +835,7 @@ static int rapl_write_data_raw(struct rapl_domain *rd, * calculate units differ on different CPUs. * We convert the units to below format based on CPUs. * i.e. - * energy unit: microJoules : Represented in microJoules by default + * energy unit: picoJoules : Represented in picoJoules by default * power unit : microWatts : Represented in milliWatts by default * time unit : microseconds: Represented in seconds by default */ @@ -834,7 +851,7 @@ static int rapl_check_unit_core(struct rapl_package *rp, int cpu) } value = (msr_val & ENERGY_UNIT_MASK) >> ENERGY_UNIT_OFFSET; - rp->energy_unit = 1000000 / (1 << value); + rp->energy_unit = ENERGY_UNIT_SCALE * 1000000 / (1 << value); value = (msr_val & POWER_UNIT_MASK) >> POWER_UNIT_OFFSET; rp->power_unit = 1000000 / (1 << value); @@ -842,7 +859,7 @@ static int rapl_check_unit_core(struct rapl_package *rp, int cpu) value = (msr_val & TIME_UNIT_MASK) >> TIME_UNIT_OFFSET; rp->time_unit = 1000000 / (1 << value); - pr_debug("Core CPU package %d energy=%duJ, time=%dus, power=%duW\n", + pr_debug("Core CPU package %d energy=%dpJ, time=%dus, power=%duW\n", rp->id, rp->energy_unit, rp->time_unit, rp->power_unit); return 0; @@ -859,7 +876,7 @@ static int rapl_check_unit_atom(struct rapl_package *rp, int cpu) return -ENODEV; } value = (msr_val & ENERGY_UNIT_MASK) >> ENERGY_UNIT_OFFSET; - rp->energy_unit = 1 << value; + rp->energy_unit = ENERGY_UNIT_SCALE * 1 << value; value = (msr_val & POWER_UNIT_MASK) >> POWER_UNIT_OFFSET; rp->power_unit = (1 << value) * 1000; @@ -867,7 +884,7 @@ static int rapl_check_unit_atom(struct rapl_package *rp, int cpu) value = (msr_val & TIME_UNIT_MASK) >> TIME_UNIT_OFFSET; rp->time_unit = 1000000 / (1 << value); - pr_debug("Atom package %d energy=%duJ, time=%dus, power=%duW\n", + pr_debug("Atom package %d energy=%dpJ, time=%dus, power=%duW\n", rp->id, rp->energy_unit, rp->time_unit, rp->power_unit); return 0; @@ -1017,6 +1034,13 @@ static const struct rapl_defaults rapl_defaults_core = { .compute_time_window = rapl_compute_time_window_core, }; +static const struct rapl_defaults rapl_defaults_hsw_server = { + .check_unit = rapl_check_unit_core, + .set_floor_freq = set_floor_freq_default, + .compute_time_window = rapl_compute_time_window_core, + .dram_domain_energy_unit = 15300, +}; + static const struct rapl_defaults rapl_defaults_atom = { .check_unit = rapl_check_unit_atom, .set_floor_freq = set_floor_freq_atom, @@ -1037,7 +1061,7 @@ static const struct x86_cpu_id rapl_ids[] = { RAPL_CPU(0x3a, rapl_defaults_core),/* Ivy Bridge */ RAPL_CPU(0x3c, rapl_defaults_core),/* Haswell */ RAPL_CPU(0x3d, rapl_defaults_core),/* Broadwell */ - RAPL_CPU(0x3f, rapl_defaults_core),/* Haswell */ + RAPL_CPU(0x3f, rapl_defaults_hsw_server),/* Haswell servers */ RAPL_CPU(0x45, rapl_defaults_core),/* Haswell ULT */ RAPL_CPU(0x4C, rapl_defaults_atom),/* Braswell */ RAPL_CPU(0x4A, rapl_defaults_atom),/* Tangier */ diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index b899947d839d..a4a8a6dc60c4 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -1839,10 +1839,12 @@ static int _regulator_do_enable(struct regulator_dev *rdev) } if (rdev->ena_pin) { - ret = regulator_ena_gpio_ctrl(rdev, true); - if (ret < 0) - return ret; - rdev->ena_gpio_state = 1; + if (!rdev->ena_gpio_state) { + ret = regulator_ena_gpio_ctrl(rdev, true); + if (ret < 0) + return ret; + rdev->ena_gpio_state = 1; + } } else if (rdev->desc->ops->enable) { ret = rdev->desc->ops->enable(rdev); if (ret < 0) @@ -1939,10 +1941,12 @@ static int _regulator_do_disable(struct regulator_dev *rdev) trace_regulator_disable(rdev_get_name(rdev)); if (rdev->ena_pin) { - ret = regulator_ena_gpio_ctrl(rdev, false); - if (ret < 0) - return ret; - rdev->ena_gpio_state = 0; + if (rdev->ena_gpio_state) { + ret = regulator_ena_gpio_ctrl(rdev, false); + if (ret < 0) + return ret; + rdev->ena_gpio_state = 0; + } } else if (rdev->desc->ops->disable) { ret = rdev->desc->ops->disable(rdev); @@ -3444,13 +3448,6 @@ static umode_t regulator_attr_is_visible(struct kobject *kobj, if (attr == &dev_attr_requested_microamps.attr) return rdev->desc->type == REGULATOR_CURRENT ? mode : 0; - /* all the other attributes exist to support constraints; - * don't show them if there are no constraints, or if the - * relevant supporting methods are missing. - */ - if (!rdev->constraints) - return 0; - /* constraints need specific supporting methods */ if (attr == &dev_attr_min_microvolts.attr || attr == &dev_attr_max_microvolts.attr) @@ -3633,12 +3630,6 @@ regulator_register(const struct regulator_desc *regulator_desc, config->ena_gpio, ret); goto wash; } - - if (config->ena_gpio_flags & GPIOF_OUT_INIT_HIGH) - rdev->ena_gpio_state = 1; - - if (config->ena_gpio_invert) - rdev->ena_gpio_state = !rdev->ena_gpio_state; } /* set regulator constraints */ @@ -3807,9 +3798,11 @@ int regulator_suspend_finish(void) list_for_each_entry(rdev, ®ulator_list, list) { mutex_lock(&rdev->mutex); if (rdev->use_count > 0 || rdev->constraints->always_on) { - error = _regulator_do_enable(rdev); - if (error) - ret = error; + if (!_regulator_is_enabled(rdev)) { + error = _regulator_do_enable(rdev); + if (error) + ret = error; + } } else { if (!have_full_constraints()) goto unlock; diff --git a/drivers/regulator/da9210-regulator.c b/drivers/regulator/da9210-regulator.c index bc6100103f7f..f0489cb9018b 100644 --- a/drivers/regulator/da9210-regulator.c +++ b/drivers/regulator/da9210-regulator.c @@ -152,6 +152,15 @@ static int da9210_i2c_probe(struct i2c_client *i2c, config.regmap = chip->regmap; config.of_node = dev->of_node; + /* Mask all interrupt sources to deassert interrupt line */ + error = regmap_write(chip->regmap, DA9210_REG_MASK_A, ~0); + if (!error) + error = regmap_write(chip->regmap, DA9210_REG_MASK_B, ~0); + if (error) { + dev_err(&i2c->dev, "Failed to write to mask reg: %d\n", error); + return error; + } + rdev = devm_regulator_register(&i2c->dev, &da9210_reg, &config); if (IS_ERR(rdev)) { dev_err(&i2c->dev, "Failed to register DA9210 regulator\n"); diff --git a/drivers/regulator/rk808-regulator.c b/drivers/regulator/rk808-regulator.c index 1f93b752a81c..3fd44353cc80 100644 --- a/drivers/regulator/rk808-regulator.c +++ b/drivers/regulator/rk808-regulator.c @@ -235,6 +235,7 @@ static const struct regulator_desc rk808_reg[] = { .vsel_mask = RK808_LDO_VSEL_MASK, .enable_reg = RK808_LDO_EN_REG, .enable_mask = BIT(0), + .enable_time = 400, .owner = THIS_MODULE, }, { .name = "LDO_REG2", @@ -249,6 +250,7 @@ static const struct regulator_desc rk808_reg[] = { .vsel_mask = RK808_LDO_VSEL_MASK, .enable_reg = RK808_LDO_EN_REG, .enable_mask = BIT(1), + .enable_time = 400, .owner = THIS_MODULE, }, { .name = "LDO_REG3", @@ -263,6 +265,7 @@ static const struct regulator_desc rk808_reg[] = { .vsel_mask = RK808_BUCK4_VSEL_MASK, .enable_reg = RK808_LDO_EN_REG, .enable_mask = BIT(2), + .enable_time = 400, .owner = THIS_MODULE, }, { .name = "LDO_REG4", @@ -277,6 +280,7 @@ static const struct regulator_desc rk808_reg[] = { .vsel_mask = RK808_LDO_VSEL_MASK, .enable_reg = RK808_LDO_EN_REG, .enable_mask = BIT(3), + .enable_time = 400, .owner = THIS_MODULE, }, { .name = "LDO_REG5", @@ -291,6 +295,7 @@ static const struct regulator_desc rk808_reg[] = { .vsel_mask = RK808_LDO_VSEL_MASK, .enable_reg = RK808_LDO_EN_REG, .enable_mask = BIT(4), + .enable_time = 400, .owner = THIS_MODULE, }, { .name = "LDO_REG6", @@ -305,6 +310,7 @@ static const struct regulator_desc rk808_reg[] = { .vsel_mask = RK808_LDO_VSEL_MASK, .enable_reg = RK808_LDO_EN_REG, .enable_mask = BIT(5), + .enable_time = 400, .owner = THIS_MODULE, }, { .name = "LDO_REG7", @@ -319,6 +325,7 @@ static const struct regulator_desc rk808_reg[] = { .vsel_mask = RK808_LDO_VSEL_MASK, .enable_reg = RK808_LDO_EN_REG, .enable_mask = BIT(6), + .enable_time = 400, .owner = THIS_MODULE, }, { .name = "LDO_REG8", @@ -333,6 +340,7 @@ static const struct regulator_desc rk808_reg[] = { .vsel_mask = RK808_LDO_VSEL_MASK, .enable_reg = RK808_LDO_EN_REG, .enable_mask = BIT(7), + .enable_time = 400, .owner = THIS_MODULE, }, { .name = "SWITCH_REG1", diff --git a/drivers/regulator/tps65910-regulator.c b/drivers/regulator/tps65910-regulator.c index e2cffe01b807..fb991ec76423 100644 --- a/drivers/regulator/tps65910-regulator.c +++ b/drivers/regulator/tps65910-regulator.c @@ -17,6 +17,7 @@ #include <linux/module.h> #include <linux/init.h> #include <linux/err.h> +#include <linux/of.h> #include <linux/platform_device.h> #include <linux/regulator/driver.h> #include <linux/regulator/machine.h> diff --git a/drivers/rpmsg/virtio_rpmsg_bus.c b/drivers/rpmsg/virtio_rpmsg_bus.c index 92f6af6da699..73354ee27877 100644 --- a/drivers/rpmsg/virtio_rpmsg_bus.c +++ b/drivers/rpmsg/virtio_rpmsg_bus.c @@ -951,6 +951,7 @@ static int rpmsg_probe(struct virtio_device *vdev) void *bufs_va; int err = 0, i; size_t total_buf_space; + bool notify; vrp = kzalloc(sizeof(*vrp), GFP_KERNEL); if (!vrp) @@ -1030,8 +1031,22 @@ static int rpmsg_probe(struct virtio_device *vdev) } } + /* + * Prepare to kick but don't notify yet - we can't do this before + * device is ready. + */ + notify = virtqueue_kick_prepare(vrp->rvq); + + /* From this point on, we can notify and get callbacks. */ + virtio_device_ready(vdev); + /* tell the remote processor it can start sending messages */ - virtqueue_kick(vrp->rvq); + /* + * this might be concurrent with callbacks, but we are only + * doing notify, not a full kick here, so that's ok. + */ + if (notify) + virtqueue_notify(vrp->rvq); dev_info(&vdev->dev, "rpmsg host is online\n"); diff --git a/drivers/rtc/rtc-at91rm9200.c b/drivers/rtc/rtc-at91rm9200.c index b4f7744f6751..b283a1a573b3 100644 --- a/drivers/rtc/rtc-at91rm9200.c +++ b/drivers/rtc/rtc-at91rm9200.c @@ -324,7 +324,7 @@ static irqreturn_t at91_rtc_interrupt(int irq, void *dev_id) ret = IRQ_HANDLED; } - spin_lock(&suspended_lock); + spin_unlock(&suspended_lock); return ret; } diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c index 4241eeab3386..f4cf6851fae9 100644 --- a/drivers/rtc/rtc-s3c.c +++ b/drivers/rtc/rtc-s3c.c @@ -849,6 +849,7 @@ static struct s3c_rtc_data const s3c2443_rtc_data = { static struct s3c_rtc_data const s3c6410_rtc_data = { .max_user_freq = 32768, + .needs_src_clk = true, .irq_handler = s3c6410_rtc_irq, .set_freq = s3c6410_rtc_setfreq, .enable_tick = s3c6410_rtc_enable_tick, diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c index 96128cb009f3..da212813f2d5 100644 --- a/drivers/s390/block/dcssblk.c +++ b/drivers/s390/block/dcssblk.c @@ -547,7 +547,7 @@ dcssblk_add_store(struct device *dev, struct device_attribute *attr, const char * parse input */ num_of_segments = 0; - for (i = 0; ((buf[i] != '\0') && (buf[i] != '\n') && i < count); i++) { + for (i = 0; (i < count && (buf[i] != '\0') && (buf[i] != '\n')); i++) { for (j = i; (buf[j] != ':') && (buf[j] != '\0') && (buf[j] != '\n') && diff --git a/drivers/s390/block/scm_blk_cluster.c b/drivers/s390/block/scm_blk_cluster.c index 09db45296eed..7497ddde2dd6 100644 --- a/drivers/s390/block/scm_blk_cluster.c +++ b/drivers/s390/block/scm_blk_cluster.c @@ -92,7 +92,7 @@ bool scm_reserve_cluster(struct scm_request *scmrq) add = 0; continue; } - for (pos = 0; pos <= iter->aob->request.msb_count; pos++) { + for (pos = 0; pos < iter->aob->request.msb_count; pos++) { if (clusters_intersect(req, iter->request[pos]) && (rq_data_dir(req) == WRITE || rq_data_dir(iter->request[pos]) == WRITE)) { diff --git a/drivers/scsi/libsas/sas_discover.c b/drivers/scsi/libsas/sas_discover.c index 62b58d38ce2e..60de66252fa2 100644 --- a/drivers/scsi/libsas/sas_discover.c +++ b/drivers/scsi/libsas/sas_discover.c @@ -500,6 +500,7 @@ static void sas_revalidate_domain(struct work_struct *work) struct sas_discovery_event *ev = to_sas_discovery_event(work); struct asd_sas_port *port = ev->port; struct sas_ha_struct *ha = port->ha; + struct domain_device *ddev = port->port_dev; /* prevent revalidation from finding sata links in recovery */ mutex_lock(&ha->disco_mutex); @@ -514,8 +515,9 @@ static void sas_revalidate_domain(struct work_struct *work) SAS_DPRINTK("REVALIDATING DOMAIN on port %d, pid:%d\n", port->id, task_pid_nr(current)); - if (port->port_dev) - res = sas_ex_revalidate_domain(port->port_dev); + if (ddev && (ddev->dev_type == SAS_FANOUT_EXPANDER_DEVICE || + ddev->dev_type == SAS_EDGE_EXPANDER_DEVICE)) + res = sas_ex_revalidate_domain(ddev); SAS_DPRINTK("done REVALIDATING DOMAIN on port %d, pid:%d, res 0x%x\n", port->id, task_pid_nr(current), res); diff --git a/drivers/scsi/qla2xxx/tcm_qla2xxx.c b/drivers/scsi/qla2xxx/tcm_qla2xxx.c index 99f43b7fc9ab..ab4879e12ea7 100644 --- a/drivers/scsi/qla2xxx/tcm_qla2xxx.c +++ b/drivers/scsi/qla2xxx/tcm_qla2xxx.c @@ -1596,7 +1596,7 @@ static int tcm_qla2xxx_check_initiator_node_acl( /* * Finally register the new FC Nexus with TCM */ - __transport_register_session(se_nacl->se_tpg, se_nacl, se_sess, sess); + transport_register_session(se_nacl->se_tpg, se_nacl, se_sess, sess); return 0; } diff --git a/drivers/spi/spi-atmel.c b/drivers/spi/spi-atmel.c index 9af7841f2e8c..06de34001c66 100644 --- a/drivers/spi/spi-atmel.c +++ b/drivers/spi/spi-atmel.c @@ -764,17 +764,17 @@ static void atmel_spi_pdc_next_xfer(struct spi_master *master, (unsigned long long)xfer->rx_dma); } - /* REVISIT: We're waiting for ENDRX before we start the next + /* REVISIT: We're waiting for RXBUFF before we start the next * transfer because we need to handle some difficult timing - * issues otherwise. If we wait for ENDTX in one transfer and - * then starts waiting for ENDRX in the next, it's difficult - * to tell the difference between the ENDRX interrupt we're - * actually waiting for and the ENDRX interrupt of the + * issues otherwise. If we wait for TXBUFE in one transfer and + * then starts waiting for RXBUFF in the next, it's difficult + * to tell the difference between the RXBUFF interrupt we're + * actually waiting for and the RXBUFF interrupt of the * previous transfer. * * It should be doable, though. Just not now... */ - spi_writel(as, IER, SPI_BIT(ENDRX) | SPI_BIT(OVRES)); + spi_writel(as, IER, SPI_BIT(RXBUFF) | SPI_BIT(OVRES)); spi_writel(as, PTCR, SPI_BIT(TXTEN) | SPI_BIT(RXTEN)); } diff --git a/drivers/spi/spi-dw-mid.c b/drivers/spi/spi-dw-mid.c index a0197fd4e95c..3ce39d10fafb 100644 --- a/drivers/spi/spi-dw-mid.c +++ b/drivers/spi/spi-dw-mid.c @@ -139,6 +139,9 @@ static struct dma_async_tx_descriptor *dw_spi_dma_prepare_tx(struct dw_spi *dws) 1, DMA_MEM_TO_DEV, DMA_PREP_INTERRUPT | DMA_CTRL_ACK); + if (!txdesc) + return NULL; + txdesc->callback = dw_spi_dma_tx_done; txdesc->callback_param = dws; @@ -184,6 +187,9 @@ static struct dma_async_tx_descriptor *dw_spi_dma_prepare_rx(struct dw_spi *dws) 1, DMA_DEV_TO_MEM, DMA_PREP_INTERRUPT | DMA_CTRL_ACK); + if (!rxdesc) + return NULL; + rxdesc->callback = dw_spi_dma_rx_done; rxdesc->callback_param = dws; diff --git a/drivers/spi/spi-dw-pci.c b/drivers/spi/spi-dw-pci.c index 5ba331047cbe..6d331e0db331 100644 --- a/drivers/spi/spi-dw-pci.c +++ b/drivers/spi/spi-dw-pci.c @@ -36,13 +36,13 @@ struct spi_pci_desc { static struct spi_pci_desc spi_pci_mid_desc_1 = { .setup = dw_spi_mid_init, - .num_cs = 32, + .num_cs = 5, .bus_num = 0, }; static struct spi_pci_desc spi_pci_mid_desc_2 = { .setup = dw_spi_mid_init, - .num_cs = 4, + .num_cs = 2, .bus_num = 1, }; diff --git a/drivers/spi/spi-dw.c b/drivers/spi/spi-dw.c index 5a97a62b298a..4847afba89f4 100644 --- a/drivers/spi/spi-dw.c +++ b/drivers/spi/spi-dw.c @@ -621,14 +621,14 @@ static void spi_hw_init(struct device *dev, struct dw_spi *dws) if (!dws->fifo_len) { u32 fifo; - for (fifo = 2; fifo <= 256; fifo++) { + for (fifo = 1; fifo < 256; fifo++) { dw_writew(dws, DW_SPI_TXFLTR, fifo); if (fifo != dw_readw(dws, DW_SPI_TXFLTR)) break; } dw_writew(dws, DW_SPI_TXFLTR, 0); - dws->fifo_len = (fifo == 2) ? 0 : fifo - 1; + dws->fifo_len = (fifo == 1) ? 0 : fifo; dev_dbg(dev, "Detected FIFO size: %u bytes\n", dws->fifo_len); } } diff --git a/drivers/spi/spi-img-spfi.c b/drivers/spi/spi-img-spfi.c index c01567d53581..e649bc7d4c08 100644 --- a/drivers/spi/spi-img-spfi.c +++ b/drivers/spi/spi-img-spfi.c @@ -459,6 +459,13 @@ static int img_spfi_transfer_one(struct spi_master *master, unsigned long flags; int ret; + if (xfer->len > SPFI_TRANSACTION_TSIZE_MASK) { + dev_err(spfi->dev, + "Transfer length (%d) is greater than the max supported (%d)", + xfer->len, SPFI_TRANSACTION_TSIZE_MASK); + return -EINVAL; + } + /* * Stop all DMA and reset the controller if the previous transaction * timed-out and never completed it's DMA. diff --git a/drivers/spi/spi-pl022.c b/drivers/spi/spi-pl022.c index 89ca162801da..ee513a85296b 100644 --- a/drivers/spi/spi-pl022.c +++ b/drivers/spi/spi-pl022.c @@ -534,12 +534,12 @@ static void giveback(struct pl022 *pl022) pl022->cur_msg = NULL; pl022->cur_transfer = NULL; pl022->cur_chip = NULL; - spi_finalize_current_message(pl022->master); /* disable the SPI/SSP operation */ writew((readw(SSP_CR1(pl022->virtbase)) & (~SSP_CR1_MASK_SSE)), SSP_CR1(pl022->virtbase)); + spi_finalize_current_message(pl022->master); } /** diff --git a/drivers/spi/spi-ti-qspi.c b/drivers/spi/spi-ti-qspi.c index 884a716e50cb..5c0616870358 100644 --- a/drivers/spi/spi-ti-qspi.c +++ b/drivers/spi/spi-ti-qspi.c @@ -101,6 +101,7 @@ struct ti_qspi { #define QSPI_FLEN(n) ((n - 1) << 0) /* STATUS REGISTER */ +#define BUSY 0x01 #define WC 0x02 /* INTERRUPT REGISTER */ @@ -199,6 +200,21 @@ static void ti_qspi_restore_ctx(struct ti_qspi *qspi) ti_qspi_write(qspi, ctx_reg->clkctrl, QSPI_SPI_CLOCK_CNTRL_REG); } +static inline u32 qspi_is_busy(struct ti_qspi *qspi) +{ + u32 stat; + unsigned long timeout = jiffies + QSPI_COMPLETION_TIMEOUT; + + stat = ti_qspi_read(qspi, QSPI_SPI_STATUS_REG); + while ((stat & BUSY) && time_after(timeout, jiffies)) { + cpu_relax(); + stat = ti_qspi_read(qspi, QSPI_SPI_STATUS_REG); + } + + WARN(stat & BUSY, "qspi busy\n"); + return stat & BUSY; +} + static int qspi_write_msg(struct ti_qspi *qspi, struct spi_transfer *t) { int wlen, count; @@ -211,6 +227,9 @@ static int qspi_write_msg(struct ti_qspi *qspi, struct spi_transfer *t) wlen = t->bits_per_word >> 3; /* in bytes */ while (count) { + if (qspi_is_busy(qspi)) + return -EBUSY; + switch (wlen) { case 1: dev_dbg(qspi->dev, "tx cmd %08x dc %08x data %02x\n", @@ -266,6 +285,9 @@ static int qspi_read_msg(struct ti_qspi *qspi, struct spi_transfer *t) while (count) { dev_dbg(qspi->dev, "rx cmd %08x dc %08x\n", cmd, qspi->dc); + if (qspi_is_busy(qspi)) + return -EBUSY; + ti_qspi_write(qspi, cmd, QSPI_SPI_CMD_REG); if (!wait_for_completion_timeout(&qspi->transfer_complete, QSPI_COMPLETION_TIMEOUT)) { diff --git a/drivers/staging/vt6655/device_main.c b/drivers/staging/vt6655/device_main.c index 4324282afe49..03b2a90b9ac0 100644 --- a/drivers/staging/vt6655/device_main.c +++ b/drivers/staging/vt6655/device_main.c @@ -330,16 +330,6 @@ static void device_init_registers(struct vnt_private *pDevice) /* zonetype initial */ pDevice->byOriginalZonetype = pDevice->abyEEPROM[EEP_OFS_ZONETYPE]; - /* Get RFType */ - pDevice->byRFType = SROMbyReadEmbedded(pDevice->PortOffset, EEP_OFS_RFTYPE); - - /* force change RevID for VT3253 emu */ - if ((pDevice->byRFType & RF_EMU) != 0) - pDevice->byRevId = 0x80; - - pDevice->byRFType &= RF_MASK; - pr_debug("pDevice->byRFType = %x\n", pDevice->byRFType); - if (!pDevice->bZoneRegExist) pDevice->byZoneType = pDevice->abyEEPROM[EEP_OFS_ZONETYPE]; @@ -1187,12 +1177,14 @@ static int vnt_tx_packet(struct vnt_private *priv, struct sk_buff *skb) { struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; PSTxDesc head_td; - u32 dma_idx = TYPE_AC0DMA; + u32 dma_idx; unsigned long flags; spin_lock_irqsave(&priv->lock, flags); - if (!ieee80211_is_data(hdr->frame_control)) + if (ieee80211_is_data(hdr->frame_control)) + dma_idx = TYPE_AC0DMA; + else dma_idx = TYPE_TXDMA0; if (AVAIL_TD(priv, dma_idx) < 1) { @@ -1206,6 +1198,9 @@ static int vnt_tx_packet(struct vnt_private *priv, struct sk_buff *skb) head_td->pTDInfo->skb = skb; + if (dma_idx == TYPE_AC0DMA) + head_td->pTDInfo->byFlags = TD_FLAGS_NETIF_SKB; + priv->iTDUsed[dma_idx]++; /* Take ownership */ @@ -1234,13 +1229,10 @@ static int vnt_tx_packet(struct vnt_private *priv, struct sk_buff *skb) head_td->buff_addr = cpu_to_le32(head_td->pTDInfo->skb_dma); - if (dma_idx == TYPE_AC0DMA) { - head_td->pTDInfo->byFlags = TD_FLAGS_NETIF_SKB; - + if (head_td->pTDInfo->byFlags & TD_FLAGS_NETIF_SKB) MACvTransmitAC0(priv->PortOffset); - } else { + else MACvTransmit0(priv->PortOffset); - } spin_unlock_irqrestore(&priv->lock, flags); @@ -1778,6 +1770,12 @@ vt6655_probe(struct pci_dev *pcid, const struct pci_device_id *ent) MACvInitialize(priv->PortOffset); MACvReadEtherAddress(priv->PortOffset, priv->abyCurrentNetAddr); + /* Get RFType */ + priv->byRFType = SROMbyReadEmbedded(priv->PortOffset, EEP_OFS_RFTYPE); + priv->byRFType &= RF_MASK; + + dev_dbg(&pcid->dev, "RF Type = %x\n", priv->byRFType); + device_get_options(priv); device_set_options(priv); /* Mask out the options cannot be set to the chip */ diff --git a/drivers/staging/vt6655/rf.c b/drivers/staging/vt6655/rf.c index 941b2adca95a..7626f635f160 100644 --- a/drivers/staging/vt6655/rf.c +++ b/drivers/staging/vt6655/rf.c @@ -794,6 +794,7 @@ bool RFbSetPower( break; case RATE_6M: case RATE_9M: + case RATE_12M: case RATE_18M: byPwr = priv->abyOFDMPwrTbl[uCH]; if (priv->byRFType == RF_UW2452) diff --git a/drivers/staging/vt6656/rf.c b/drivers/staging/vt6656/rf.c index c42cde59f598..c4286ccac320 100644 --- a/drivers/staging/vt6656/rf.c +++ b/drivers/staging/vt6656/rf.c @@ -640,6 +640,7 @@ int vnt_rf_setpower(struct vnt_private *priv, u32 rate, u32 channel) break; case RATE_6M: case RATE_9M: + case RATE_12M: case RATE_18M: case RATE_24M: case RATE_36M: diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c index 50bad55a0c42..2accb6e47beb 100644 --- a/drivers/target/iscsi/iscsi_target.c +++ b/drivers/target/iscsi/iscsi_target.c @@ -4256,11 +4256,17 @@ int iscsit_close_connection( pr_debug("Closing iSCSI connection CID %hu on SID:" " %u\n", conn->cid, sess->sid); /* - * Always up conn_logout_comp just in case the RX Thread is sleeping - * and the logout response never got sent because the connection - * failed. + * Always up conn_logout_comp for the traditional TCP case just in case + * the RX Thread in iscsi_target_rx_opcode() is sleeping and the logout + * response never got sent because the connection failed. + * + * However for iser-target, isert_wait4logout() is using conn_logout_comp + * to signal logout response TX interrupt completion. Go ahead and skip + * this for iser since isert_rx_opcode() does not wait on logout failure, + * and to avoid iscsi_conn pointer dereference in iser-target code. */ - complete(&conn->conn_logout_comp); + if (conn->conn_transport->transport_type == ISCSI_TCP) + complete(&conn->conn_logout_comp); iscsi_release_thread_set(conn); diff --git a/drivers/target/iscsi/iscsi_target_erl0.c b/drivers/target/iscsi/iscsi_target_erl0.c index 1c197bad6132..bdd8731a4daa 100644 --- a/drivers/target/iscsi/iscsi_target_erl0.c +++ b/drivers/target/iscsi/iscsi_target_erl0.c @@ -22,7 +22,6 @@ #include <target/target_core_fabric.h> #include <target/iscsi/iscsi_target_core.h> -#include <target/iscsi/iscsi_transport.h> #include "iscsi_target_seq_pdu_list.h" #include "iscsi_target_tq.h" #include "iscsi_target_erl0.h" @@ -940,8 +939,7 @@ void iscsit_take_action_for_connection_exit(struct iscsi_conn *conn) if (conn->conn_state == TARG_CONN_STATE_IN_LOGOUT) { spin_unlock_bh(&conn->state_lock); - if (conn->conn_transport->transport_type == ISCSI_TCP) - iscsit_close_connection(conn); + iscsit_close_connection(conn); return; } diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c index 6b3c32954689..c36bd7c29136 100644 --- a/drivers/target/loopback/tcm_loop.c +++ b/drivers/target/loopback/tcm_loop.c @@ -953,11 +953,8 @@ static int tcm_loop_make_nexus( transport_free_session(tl_nexus->se_sess); goto out; } - /* - * Now, register the SAS I_T Nexus as active with the call to - * transport_register_session() - */ - __transport_register_session(se_tpg, tl_nexus->se_sess->se_node_acl, + /* Now, register the SAS I_T Nexus as active. */ + transport_register_session(se_tpg, tl_nexus->se_sess->se_node_acl, tl_nexus->se_sess, tl_nexus); tl_tpg->tl_nexus = tl_nexus; pr_debug("TCM_Loop_ConfigFS: Established I_T Nexus to emulated" diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c index 58f49ff69b14..79b4ec3ca2db 100644 --- a/drivers/target/target_core_device.c +++ b/drivers/target/target_core_device.c @@ -650,6 +650,18 @@ static u32 se_dev_align_max_sectors(u32 max_sectors, u32 block_size) return aligned_max_sectors; } +bool se_dev_check_wce(struct se_device *dev) +{ + bool wce = false; + + if (dev->transport->get_write_cache) + wce = dev->transport->get_write_cache(dev); + else if (dev->dev_attrib.emulate_write_cache > 0) + wce = true; + + return wce; +} + int se_dev_set_max_unmap_lba_count( struct se_device *dev, u32 max_unmap_lba_count) @@ -767,6 +779,16 @@ int se_dev_set_emulate_fua_write(struct se_device *dev, int flag) pr_err("Illegal value %d\n", flag); return -EINVAL; } + if (flag && + dev->transport->get_write_cache) { + pr_err("emulate_fua_write not supported for this device\n"); + return -EINVAL; + } + if (dev->export_count) { + pr_err("emulate_fua_write cannot be changed with active" + " exports: %d\n", dev->export_count); + return -EINVAL; + } dev->dev_attrib.emulate_fua_write = flag; pr_debug("dev[%p]: SE Device Forced Unit Access WRITEs: %d\n", dev, dev->dev_attrib.emulate_fua_write); @@ -801,7 +823,11 @@ int se_dev_set_emulate_write_cache(struct se_device *dev, int flag) pr_err("emulate_write_cache not supported for this device\n"); return -EINVAL; } - + if (dev->export_count) { + pr_err("emulate_write_cache cannot be changed with active" + " exports: %d\n", dev->export_count); + return -EINVAL; + } dev->dev_attrib.emulate_write_cache = flag; pr_debug("dev[%p]: SE Device WRITE_CACHE_EMULATION flag: %d\n", dev, dev->dev_attrib.emulate_write_cache); @@ -1534,8 +1560,6 @@ int target_configure_device(struct se_device *dev) ret = dev->transport->configure_device(dev); if (ret) goto out; - dev->dev_flags |= DF_CONFIGURED; - /* * XXX: there is not much point to have two different values here.. */ @@ -1597,6 +1621,8 @@ int target_configure_device(struct se_device *dev) list_add_tail(&dev->g_dev_node, &g_device_list); mutex_unlock(&g_device_mutex); + dev->dev_flags |= DF_CONFIGURED; + return 0; out_free_alua: diff --git a/drivers/target/target_core_pscsi.c b/drivers/target/target_core_pscsi.c index 1045dcd7bf65..f6c954c4635f 100644 --- a/drivers/target/target_core_pscsi.c +++ b/drivers/target/target_core_pscsi.c @@ -1121,7 +1121,7 @@ static u32 pscsi_get_device_type(struct se_device *dev) struct pscsi_dev_virt *pdv = PSCSI_DEV(dev); struct scsi_device *sd = pdv->pdv_sd; - return sd->type; + return (sd) ? sd->type : TYPE_NO_LUN; } static sector_t pscsi_get_blocks(struct se_device *dev) diff --git a/drivers/target/target_core_sbc.c b/drivers/target/target_core_sbc.c index 9a2f9d3a6e70..3e7297411110 100644 --- a/drivers/target/target_core_sbc.c +++ b/drivers/target/target_core_sbc.c @@ -708,8 +708,7 @@ sbc_check_dpofua(struct se_device *dev, struct se_cmd *cmd, unsigned char *cdb) } } if (cdb[1] & 0x8) { - if (!dev->dev_attrib.emulate_fua_write || - !dev->dev_attrib.emulate_write_cache) { + if (!dev->dev_attrib.emulate_fua_write || !se_dev_check_wce(dev)) { pr_err("Got CDB: 0x%02x with FUA bit set, but device" " does not advertise support for FUA write\n", cdb[0]); diff --git a/drivers/target/target_core_spc.c b/drivers/target/target_core_spc.c index 460e93109473..6c8bd6bc175c 100644 --- a/drivers/target/target_core_spc.c +++ b/drivers/target/target_core_spc.c @@ -454,19 +454,6 @@ check_scsi_name: } EXPORT_SYMBOL(spc_emulate_evpd_83); -static bool -spc_check_dev_wce(struct se_device *dev) -{ - bool wce = false; - - if (dev->transport->get_write_cache) - wce = dev->transport->get_write_cache(dev); - else if (dev->dev_attrib.emulate_write_cache > 0) - wce = true; - - return wce; -} - /* Extended INQUIRY Data VPD Page */ static sense_reason_t spc_emulate_evpd_86(struct se_cmd *cmd, unsigned char *buf) @@ -490,7 +477,7 @@ spc_emulate_evpd_86(struct se_cmd *cmd, unsigned char *buf) buf[5] = 0x07; /* If WriteCache emulation is enabled, set V_SUP */ - if (spc_check_dev_wce(dev)) + if (se_dev_check_wce(dev)) buf[6] = 0x01; /* If an LBA map is present set R_SUP */ spin_lock(&cmd->se_dev->t10_alua.lba_map_lock); @@ -897,7 +884,7 @@ static int spc_modesense_caching(struct se_cmd *cmd, u8 pc, u8 *p) if (pc == 1) goto out; - if (spc_check_dev_wce(dev)) + if (se_dev_check_wce(dev)) p[2] = 0x04; /* Write Cache Enable */ p[12] = 0x20; /* Disabled Read Ahead */ @@ -1009,7 +996,7 @@ static sense_reason_t spc_emulate_modesense(struct se_cmd *cmd) (cmd->se_deve->lun_flags & TRANSPORT_LUNFLAGS_READ_ONLY))) spc_modesense_write_protect(&buf[length], type); - if ((spc_check_dev_wce(dev)) && + if ((se_dev_check_wce(dev)) && (dev->dev_attrib.emulate_fua_write > 0)) spc_modesense_dpofua(&buf[length], type); diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c index 0adc0f650213..ac3cbabdbdf0 100644 --- a/drivers/target/target_core_transport.c +++ b/drivers/target/target_core_transport.c @@ -2389,6 +2389,10 @@ int target_get_sess_cmd(struct se_session *se_sess, struct se_cmd *se_cmd, list_add_tail(&se_cmd->se_cmd_list, &se_sess->sess_cmd_list); out: spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags); + + if (ret && ack_kref) + target_put_sess_cmd(se_sess, se_cmd); + return ret; } EXPORT_SYMBOL(target_get_sess_cmd); diff --git a/drivers/target/tcm_fc/tfc_io.c b/drivers/target/tcm_fc/tfc_io.c index 97b486c3dda1..583e755d8091 100644 --- a/drivers/target/tcm_fc/tfc_io.c +++ b/drivers/target/tcm_fc/tfc_io.c @@ -359,7 +359,7 @@ void ft_invl_hw_context(struct ft_cmd *cmd) ep = fc_seq_exch(seq); if (ep) { lport = ep->lp; - if (lport && (ep->xid <= lport->lro_xid)) + if (lport && (ep->xid <= lport->lro_xid)) { /* * "ddp_done" trigger invalidation of HW * specific DDP context @@ -374,6 +374,7 @@ void ft_invl_hw_context(struct ft_cmd *cmd) * identified using ep->xid) */ cmd->was_ddp_setup = 0; + } } } } diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8250/8250_dw.c index f7f5371352b7..48a8bef058e0 100644 --- a/drivers/tty/serial/8250/8250_dw.c +++ b/drivers/tty/serial/8250/8250_dw.c @@ -119,7 +119,10 @@ static void dw8250_serial_out(struct uart_port *p, int offset, int value) dw8250_force_idle(p); writeb(value, p->membase + (UART_LCR << p->regshift)); } - dev_err(p->dev, "Couldn't set LCR to %d\n", value); + /* + * FIXME: this deadlocks if port->lock is already held + * dev_err(p->dev, "Couldn't set LCR to %d\n", value); + */ } } @@ -163,7 +166,10 @@ static void dw8250_serial_outq(struct uart_port *p, int offset, int value) __raw_writeq(value & 0xff, p->membase + (UART_LCR << p->regshift)); } - dev_err(p->dev, "Couldn't set LCR to %d\n", value); + /* + * FIXME: this deadlocks if port->lock is already held + * dev_err(p->dev, "Couldn't set LCR to %d\n", value); + */ } } #endif /* CONFIG_64BIT */ @@ -187,7 +193,10 @@ static void dw8250_serial_out32(struct uart_port *p, int offset, int value) dw8250_force_idle(p); writel(value, p->membase + (UART_LCR << p->regshift)); } - dev_err(p->dev, "Couldn't set LCR to %d\n", value); + /* + * FIXME: this deadlocks if port->lock is already held + * dev_err(p->dev, "Couldn't set LCR to %d\n", value); + */ } } diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c index ff451048c1ac..4bfb7ac0239f 100644 --- a/drivers/usb/chipidea/udc.c +++ b/drivers/usb/chipidea/udc.c @@ -929,6 +929,13 @@ __acquires(hwep->lock) return retval; } +static int otg_a_alt_hnp_support(struct ci_hdrc *ci) +{ + dev_warn(&ci->gadget.dev, + "connect the device to an alternate port if you want HNP\n"); + return isr_setup_status_phase(ci); +} + /** * isr_setup_packet_handler: setup packet handler * @ci: UDC descriptor @@ -1061,6 +1068,10 @@ __acquires(ci->lock) ci); } break; + case USB_DEVICE_A_ALT_HNP_SUPPORT: + if (ci_otg_is_fsm_mode(ci)) + err = otg_a_alt_hnp_support(ci); + break; default: goto delegate; } diff --git a/drivers/usb/common/usb-otg-fsm.c b/drivers/usb/common/usb-otg-fsm.c index c6b35b77dab7..61d538aa2346 100644 --- a/drivers/usb/common/usb-otg-fsm.c +++ b/drivers/usb/common/usb-otg-fsm.c @@ -150,9 +150,9 @@ static int otg_set_state(struct otg_fsm *fsm, enum usb_otg_state new_state) break; case OTG_STATE_B_PERIPHERAL: otg_chrg_vbus(fsm, 0); - otg_loc_conn(fsm, 1); otg_loc_sof(fsm, 0); otg_set_protocol(fsm, PROTO_GADGET); + otg_loc_conn(fsm, 1); break; case OTG_STATE_B_WAIT_ACON: otg_chrg_vbus(fsm, 0); @@ -213,10 +213,10 @@ static int otg_set_state(struct otg_fsm *fsm, enum usb_otg_state new_state) break; case OTG_STATE_A_PERIPHERAL: - otg_loc_conn(fsm, 1); otg_loc_sof(fsm, 0); otg_set_protocol(fsm, PROTO_GADGET); otg_drv_vbus(fsm, 1); + otg_loc_conn(fsm, 1); otg_add_timer(fsm, A_BIDL_ADIS); break; case OTG_STATE_A_WAIT_VFALL: diff --git a/drivers/usb/dwc2/core_intr.c b/drivers/usb/dwc2/core_intr.c index 02e3e2d4ea56..6cf047878dba 100644 --- a/drivers/usb/dwc2/core_intr.c +++ b/drivers/usb/dwc2/core_intr.c @@ -377,6 +377,9 @@ static void dwc2_handle_disconnect_intr(struct dwc2_hsotg *hsotg) dwc2_is_host_mode(hsotg) ? "Host" : "Device", dwc2_op_state_str(hsotg)); + if (hsotg->op_state == OTG_STATE_A_HOST) + dwc2_hcd_disconnect(hsotg); + /* Change to L3 (OFF) state */ hsotg->lx_state = DWC2_L3; diff --git a/drivers/usb/gadget/function/f_fs.c b/drivers/usb/gadget/function/f_fs.c index af98b096af2f..175c9956cbe3 100644 --- a/drivers/usb/gadget/function/f_fs.c +++ b/drivers/usb/gadget/function/f_fs.c @@ -144,10 +144,9 @@ struct ffs_io_data { bool read; struct kiocb *kiocb; - const struct iovec *iovec; - unsigned long nr_segs; - char __user *buf; - size_t len; + struct iov_iter data; + const void *to_free; + char *buf; struct mm_struct *mm; struct work_struct work; @@ -649,29 +648,10 @@ static void ffs_user_copy_worker(struct work_struct *work) io_data->req->actual; if (io_data->read && ret > 0) { - int i; - size_t pos = 0; - - /* - * Since req->length may be bigger than io_data->len (after - * being rounded up to maxpacketsize), we may end up with more - * data then user space has space for. - */ - ret = min_t(int, ret, io_data->len); - use_mm(io_data->mm); - for (i = 0; i < io_data->nr_segs; i++) { - size_t len = min_t(size_t, ret - pos, - io_data->iovec[i].iov_len); - if (!len) - break; - if (unlikely(copy_to_user(io_data->iovec[i].iov_base, - &io_data->buf[pos], len))) { - ret = -EFAULT; - break; - } - pos += len; - } + ret = copy_to_iter(io_data->buf, ret, &io_data->data); + if (iov_iter_count(&io_data->data)) + ret = -EFAULT; unuse_mm(io_data->mm); } @@ -684,7 +664,7 @@ static void ffs_user_copy_worker(struct work_struct *work) io_data->kiocb->private = NULL; if (io_data->read) - kfree(io_data->iovec); + kfree(io_data->to_free); kfree(io_data->buf); kfree(io_data); } @@ -743,6 +723,7 @@ static ssize_t ffs_epfile_io(struct file *file, struct ffs_io_data *io_data) * before the waiting completes, so do not assign to 'gadget' earlier */ struct usb_gadget *gadget = epfile->ffs->gadget; + size_t copied; spin_lock_irq(&epfile->ffs->eps_lock); /* In the meantime, endpoint got disabled or changed. */ @@ -750,34 +731,21 @@ static ssize_t ffs_epfile_io(struct file *file, struct ffs_io_data *io_data) spin_unlock_irq(&epfile->ffs->eps_lock); return -ESHUTDOWN; } + data_len = iov_iter_count(&io_data->data); /* * Controller may require buffer size to be aligned to * maxpacketsize of an out endpoint. */ - data_len = io_data->read ? - usb_ep_align_maybe(gadget, ep->ep, io_data->len) : - io_data->len; + if (io_data->read) + data_len = usb_ep_align_maybe(gadget, ep->ep, data_len); spin_unlock_irq(&epfile->ffs->eps_lock); data = kmalloc(data_len, GFP_KERNEL); if (unlikely(!data)) return -ENOMEM; - if (io_data->aio && !io_data->read) { - int i; - size_t pos = 0; - for (i = 0; i < io_data->nr_segs; i++) { - if (unlikely(copy_from_user(&data[pos], - io_data->iovec[i].iov_base, - io_data->iovec[i].iov_len))) { - ret = -EFAULT; - goto error; - } - pos += io_data->iovec[i].iov_len; - } - } else { - if (!io_data->read && - unlikely(__copy_from_user(data, io_data->buf, - io_data->len))) { + if (!io_data->read) { + copied = copy_from_iter(data, data_len, &io_data->data); + if (copied != data_len) { ret = -EFAULT; goto error; } @@ -876,10 +844,8 @@ static ssize_t ffs_epfile_io(struct file *file, struct ffs_io_data *io_data) */ ret = ep->status; if (io_data->read && ret > 0) { - ret = min_t(size_t, ret, io_data->len); - - if (unlikely(copy_to_user(io_data->buf, - data, ret))) + ret = copy_to_iter(data, ret, &io_data->data); + if (unlikely(iov_iter_count(&io_data->data))) ret = -EFAULT; } } @@ -898,37 +864,6 @@ error: return ret; } -static ssize_t -ffs_epfile_write(struct file *file, const char __user *buf, size_t len, - loff_t *ptr) -{ - struct ffs_io_data io_data; - - ENTER(); - - io_data.aio = false; - io_data.read = false; - io_data.buf = (char * __user)buf; - io_data.len = len; - - return ffs_epfile_io(file, &io_data); -} - -static ssize_t -ffs_epfile_read(struct file *file, char __user *buf, size_t len, loff_t *ptr) -{ - struct ffs_io_data io_data; - - ENTER(); - - io_data.aio = false; - io_data.read = true; - io_data.buf = buf; - io_data.len = len; - - return ffs_epfile_io(file, &io_data); -} - static int ffs_epfile_open(struct inode *inode, struct file *file) { @@ -965,67 +900,86 @@ static int ffs_aio_cancel(struct kiocb *kiocb) return value; } -static ssize_t ffs_epfile_aio_write(struct kiocb *kiocb, - const struct iovec *iovec, - unsigned long nr_segs, loff_t loff) +static ssize_t ffs_epfile_write_iter(struct kiocb *kiocb, struct iov_iter *from) { - struct ffs_io_data *io_data; + struct ffs_io_data io_data, *p = &io_data; + ssize_t res; ENTER(); - io_data = kmalloc(sizeof(*io_data), GFP_KERNEL); - if (unlikely(!io_data)) - return -ENOMEM; + if (!is_sync_kiocb(kiocb)) { + p = kmalloc(sizeof(io_data), GFP_KERNEL); + if (unlikely(!p)) + return -ENOMEM; + p->aio = true; + } else { + p->aio = false; + } - io_data->aio = true; - io_data->read = false; - io_data->kiocb = kiocb; - io_data->iovec = iovec; - io_data->nr_segs = nr_segs; - io_data->len = kiocb->ki_nbytes; - io_data->mm = current->mm; + p->read = false; + p->kiocb = kiocb; + p->data = *from; + p->mm = current->mm; - kiocb->private = io_data; + kiocb->private = p; kiocb_set_cancel_fn(kiocb, ffs_aio_cancel); - return ffs_epfile_io(kiocb->ki_filp, io_data); + res = ffs_epfile_io(kiocb->ki_filp, p); + if (res == -EIOCBQUEUED) + return res; + if (p->aio) + kfree(p); + else + *from = p->data; + return res; } -static ssize_t ffs_epfile_aio_read(struct kiocb *kiocb, - const struct iovec *iovec, - unsigned long nr_segs, loff_t loff) +static ssize_t ffs_epfile_read_iter(struct kiocb *kiocb, struct iov_iter *to) { - struct ffs_io_data *io_data; - struct iovec *iovec_copy; + struct ffs_io_data io_data, *p = &io_data; + ssize_t res; ENTER(); - iovec_copy = kmalloc_array(nr_segs, sizeof(*iovec_copy), GFP_KERNEL); - if (unlikely(!iovec_copy)) - return -ENOMEM; - - memcpy(iovec_copy, iovec, sizeof(struct iovec)*nr_segs); - - io_data = kmalloc(sizeof(*io_data), GFP_KERNEL); - if (unlikely(!io_data)) { - kfree(iovec_copy); - return -ENOMEM; + if (!is_sync_kiocb(kiocb)) { + p = kmalloc(sizeof(io_data), GFP_KERNEL); + if (unlikely(!p)) + return -ENOMEM; + p->aio = true; + } else { + p->aio = false; } - io_data->aio = true; - io_data->read = true; - io_data->kiocb = kiocb; - io_data->iovec = iovec_copy; - io_data->nr_segs = nr_segs; - io_data->len = kiocb->ki_nbytes; - io_data->mm = current->mm; + p->read = true; + p->kiocb = kiocb; + if (p->aio) { + p->to_free = dup_iter(&p->data, to, GFP_KERNEL); + if (!p->to_free) { + kfree(p); + return -ENOMEM; + } + } else { + p->data = *to; + p->to_free = NULL; + } + p->mm = current->mm; - kiocb->private = io_data; + kiocb->private = p; kiocb_set_cancel_fn(kiocb, ffs_aio_cancel); - return ffs_epfile_io(kiocb->ki_filp, io_data); + res = ffs_epfile_io(kiocb->ki_filp, p); + if (res == -EIOCBQUEUED) + return res; + + if (p->aio) { + kfree(p->to_free); + kfree(p); + } else { + *to = p->data; + } + return res; } static int @@ -1105,10 +1059,10 @@ static const struct file_operations ffs_epfile_operations = { .llseek = no_llseek, .open = ffs_epfile_open, - .write = ffs_epfile_write, - .read = ffs_epfile_read, - .aio_write = ffs_epfile_aio_write, - .aio_read = ffs_epfile_aio_read, + .write = new_sync_write, + .read = new_sync_read, + .write_iter = ffs_epfile_write_iter, + .read_iter = ffs_epfile_read_iter, .release = ffs_epfile_release, .unlocked_ioctl = ffs_epfile_ioctl, }; diff --git a/drivers/usb/gadget/function/f_loopback.c b/drivers/usb/gadget/function/f_loopback.c index 298b46112b1a..39f49f1ad22f 100644 --- a/drivers/usb/gadget/function/f_loopback.c +++ b/drivers/usb/gadget/function/f_loopback.c @@ -289,8 +289,7 @@ static void disable_loopback(struct f_loopback *loop) struct usb_composite_dev *cdev; cdev = loop->function.config->cdev; - disable_endpoints(cdev, loop->in_ep, loop->out_ep, NULL, NULL, NULL, - NULL); + disable_endpoints(cdev, loop->in_ep, loop->out_ep, NULL, NULL); VDBG(cdev, "%s disabled\n", loop->function.name); } diff --git a/drivers/usb/gadget/function/f_sourcesink.c b/drivers/usb/gadget/function/f_sourcesink.c index e3dae47baef3..3a5ae9900b1e 100644 --- a/drivers/usb/gadget/function/f_sourcesink.c +++ b/drivers/usb/gadget/function/f_sourcesink.c @@ -23,15 +23,6 @@ #include "gadget_chips.h" #include "u_f.h" -#define USB_MS_TO_SS_INTERVAL(x) USB_MS_TO_HS_INTERVAL(x) - -enum eptype { - EP_CONTROL = 0, - EP_BULK, - EP_ISOC, - EP_INTERRUPT, -}; - /* * SOURCE/SINK FUNCTION ... a primary testing vehicle for USB peripheral * controller drivers. @@ -64,8 +55,6 @@ struct f_sourcesink { struct usb_ep *out_ep; struct usb_ep *iso_in_ep; struct usb_ep *iso_out_ep; - struct usb_ep *int_in_ep; - struct usb_ep *int_out_ep; int cur_alt; }; @@ -79,10 +68,6 @@ static unsigned isoc_interval; static unsigned isoc_maxpacket; static unsigned isoc_mult; static unsigned isoc_maxburst; -static unsigned int_interval; /* In ms */ -static unsigned int_maxpacket; -static unsigned int_mult; -static unsigned int_maxburst; static unsigned buflen; /*-------------------------------------------------------------------------*/ @@ -107,16 +92,6 @@ static struct usb_interface_descriptor source_sink_intf_alt1 = { /* .iInterface = DYNAMIC */ }; -static struct usb_interface_descriptor source_sink_intf_alt2 = { - .bLength = USB_DT_INTERFACE_SIZE, - .bDescriptorType = USB_DT_INTERFACE, - - .bAlternateSetting = 2, - .bNumEndpoints = 2, - .bInterfaceClass = USB_CLASS_VENDOR_SPEC, - /* .iInterface = DYNAMIC */ -}; - /* full speed support: */ static struct usb_endpoint_descriptor fs_source_desc = { @@ -155,26 +130,6 @@ static struct usb_endpoint_descriptor fs_iso_sink_desc = { .bInterval = 4, }; -static struct usb_endpoint_descriptor fs_int_source_desc = { - .bLength = USB_DT_ENDPOINT_SIZE, - .bDescriptorType = USB_DT_ENDPOINT, - - .bEndpointAddress = USB_DIR_IN, - .bmAttributes = USB_ENDPOINT_XFER_INT, - .wMaxPacketSize = cpu_to_le16(64), - .bInterval = GZERO_INT_INTERVAL, -}; - -static struct usb_endpoint_descriptor fs_int_sink_desc = { - .bLength = USB_DT_ENDPOINT_SIZE, - .bDescriptorType = USB_DT_ENDPOINT, - - .bEndpointAddress = USB_DIR_OUT, - .bmAttributes = USB_ENDPOINT_XFER_INT, - .wMaxPacketSize = cpu_to_le16(64), - .bInterval = GZERO_INT_INTERVAL, -}; - static struct usb_descriptor_header *fs_source_sink_descs[] = { (struct usb_descriptor_header *) &source_sink_intf_alt0, (struct usb_descriptor_header *) &fs_sink_desc, @@ -185,10 +140,6 @@ static struct usb_descriptor_header *fs_source_sink_descs[] = { (struct usb_descriptor_header *) &fs_source_desc, (struct usb_descriptor_header *) &fs_iso_sink_desc, (struct usb_descriptor_header *) &fs_iso_source_desc, - (struct usb_descriptor_header *) &source_sink_intf_alt2, -#define FS_ALT_IFC_2_OFFSET 8 - (struct usb_descriptor_header *) &fs_int_sink_desc, - (struct usb_descriptor_header *) &fs_int_source_desc, NULL, }; @@ -228,24 +179,6 @@ static struct usb_endpoint_descriptor hs_iso_sink_desc = { .bInterval = 4, }; -static struct usb_endpoint_descriptor hs_int_source_desc = { - .bLength = USB_DT_ENDPOINT_SIZE, - .bDescriptorType = USB_DT_ENDPOINT, - - .bmAttributes = USB_ENDPOINT_XFER_INT, - .wMaxPacketSize = cpu_to_le16(1024), - .bInterval = USB_MS_TO_HS_INTERVAL(GZERO_INT_INTERVAL), -}; - -static struct usb_endpoint_descriptor hs_int_sink_desc = { - .bLength = USB_DT_ENDPOINT_SIZE, - .bDescriptorType = USB_DT_ENDPOINT, - - .bmAttributes = USB_ENDPOINT_XFER_INT, - .wMaxPacketSize = cpu_to_le16(1024), - .bInterval = USB_MS_TO_HS_INTERVAL(GZERO_INT_INTERVAL), -}; - static struct usb_descriptor_header *hs_source_sink_descs[] = { (struct usb_descriptor_header *) &source_sink_intf_alt0, (struct usb_descriptor_header *) &hs_source_desc, @@ -256,10 +189,6 @@ static struct usb_descriptor_header *hs_source_sink_descs[] = { (struct usb_descriptor_header *) &hs_sink_desc, (struct usb_descriptor_header *) &hs_iso_source_desc, (struct usb_descriptor_header *) &hs_iso_sink_desc, - (struct usb_descriptor_header *) &source_sink_intf_alt2, -#define HS_ALT_IFC_2_OFFSET 8 - (struct usb_descriptor_header *) &hs_int_source_desc, - (struct usb_descriptor_header *) &hs_int_sink_desc, NULL, }; @@ -335,42 +264,6 @@ static struct usb_ss_ep_comp_descriptor ss_iso_sink_comp_desc = { .wBytesPerInterval = cpu_to_le16(1024), }; -static struct usb_endpoint_descriptor ss_int_source_desc = { - .bLength = USB_DT_ENDPOINT_SIZE, - .bDescriptorType = USB_DT_ENDPOINT, - - .bmAttributes = USB_ENDPOINT_XFER_INT, - .wMaxPacketSize = cpu_to_le16(1024), - .bInterval = USB_MS_TO_SS_INTERVAL(GZERO_INT_INTERVAL), -}; - -static struct usb_ss_ep_comp_descriptor ss_int_source_comp_desc = { - .bLength = USB_DT_SS_EP_COMP_SIZE, - .bDescriptorType = USB_DT_SS_ENDPOINT_COMP, - - .bMaxBurst = 0, - .bmAttributes = 0, - .wBytesPerInterval = cpu_to_le16(1024), -}; - -static struct usb_endpoint_descriptor ss_int_sink_desc = { - .bLength = USB_DT_ENDPOINT_SIZE, - .bDescriptorType = USB_DT_ENDPOINT, - - .bmAttributes = USB_ENDPOINT_XFER_INT, - .wMaxPacketSize = cpu_to_le16(1024), - .bInterval = USB_MS_TO_SS_INTERVAL(GZERO_INT_INTERVAL), -}; - -static struct usb_ss_ep_comp_descriptor ss_int_sink_comp_desc = { - .bLength = USB_DT_SS_EP_COMP_SIZE, - .bDescriptorType = USB_DT_SS_ENDPOINT_COMP, - - .bMaxBurst = 0, - .bmAttributes = 0, - .wBytesPerInterval = cpu_to_le16(1024), -}; - static struct usb_descriptor_header *ss_source_sink_descs[] = { (struct usb_descriptor_header *) &source_sink_intf_alt0, (struct usb_descriptor_header *) &ss_source_desc, @@ -387,12 +280,6 @@ static struct usb_descriptor_header *ss_source_sink_descs[] = { (struct usb_descriptor_header *) &ss_iso_source_comp_desc, (struct usb_descriptor_header *) &ss_iso_sink_desc, (struct usb_descriptor_header *) &ss_iso_sink_comp_desc, - (struct usb_descriptor_header *) &source_sink_intf_alt2, -#define SS_ALT_IFC_2_OFFSET 14 - (struct usb_descriptor_header *) &ss_int_source_desc, - (struct usb_descriptor_header *) &ss_int_source_comp_desc, - (struct usb_descriptor_header *) &ss_int_sink_desc, - (struct usb_descriptor_header *) &ss_int_sink_comp_desc, NULL, }; @@ -414,21 +301,6 @@ static struct usb_gadget_strings *sourcesink_strings[] = { }; /*-------------------------------------------------------------------------*/ -static const char *get_ep_string(enum eptype ep_type) -{ - switch (ep_type) { - case EP_ISOC: - return "ISOC-"; - case EP_INTERRUPT: - return "INTERRUPT-"; - case EP_CONTROL: - return "CTRL-"; - case EP_BULK: - return "BULK-"; - default: - return "UNKNOWN-"; - } -} static inline struct usb_request *ss_alloc_ep_req(struct usb_ep *ep, int len) { @@ -456,8 +328,7 @@ static void disable_ep(struct usb_composite_dev *cdev, struct usb_ep *ep) void disable_endpoints(struct usb_composite_dev *cdev, struct usb_ep *in, struct usb_ep *out, - struct usb_ep *iso_in, struct usb_ep *iso_out, - struct usb_ep *int_in, struct usb_ep *int_out) + struct usb_ep *iso_in, struct usb_ep *iso_out) { disable_ep(cdev, in); disable_ep(cdev, out); @@ -465,10 +336,6 @@ void disable_endpoints(struct usb_composite_dev *cdev, disable_ep(cdev, iso_in); if (iso_out) disable_ep(cdev, iso_out); - if (int_in) - disable_ep(cdev, int_in); - if (int_out) - disable_ep(cdev, int_out); } static int @@ -485,7 +352,6 @@ sourcesink_bind(struct usb_configuration *c, struct usb_function *f) return id; source_sink_intf_alt0.bInterfaceNumber = id; source_sink_intf_alt1.bInterfaceNumber = id; - source_sink_intf_alt2.bInterfaceNumber = id; /* allocate bulk endpoints */ ss->in_ep = usb_ep_autoconfig(cdev->gadget, &fs_source_desc); @@ -546,55 +412,14 @@ no_iso: if (isoc_maxpacket > 1024) isoc_maxpacket = 1024; - /* sanity check the interrupt module parameters */ - if (int_interval < 1) - int_interval = 1; - if (int_interval > 4096) - int_interval = 4096; - if (int_mult > 2) - int_mult = 2; - if (int_maxburst > 15) - int_maxburst = 15; - - /* fill in the FS interrupt descriptors from the module parameters */ - fs_int_source_desc.wMaxPacketSize = int_maxpacket > 64 ? - 64 : int_maxpacket; - fs_int_source_desc.bInterval = int_interval > 255 ? - 255 : int_interval; - fs_int_sink_desc.wMaxPacketSize = int_maxpacket > 64 ? - 64 : int_maxpacket; - fs_int_sink_desc.bInterval = int_interval > 255 ? - 255 : int_interval; - - /* allocate int endpoints */ - ss->int_in_ep = usb_ep_autoconfig(cdev->gadget, &fs_int_source_desc); - if (!ss->int_in_ep) - goto no_int; - ss->int_in_ep->driver_data = cdev; /* claim */ - - ss->int_out_ep = usb_ep_autoconfig(cdev->gadget, &fs_int_sink_desc); - if (ss->int_out_ep) { - ss->int_out_ep->driver_data = cdev; /* claim */ - } else { - ss->int_in_ep->driver_data = NULL; - ss->int_in_ep = NULL; -no_int: - fs_source_sink_descs[FS_ALT_IFC_2_OFFSET] = NULL; - hs_source_sink_descs[HS_ALT_IFC_2_OFFSET] = NULL; - ss_source_sink_descs[SS_ALT_IFC_2_OFFSET] = NULL; - } - - if (int_maxpacket > 1024) - int_maxpacket = 1024; - /* support high speed hardware */ hs_source_desc.bEndpointAddress = fs_source_desc.bEndpointAddress; hs_sink_desc.bEndpointAddress = fs_sink_desc.bEndpointAddress; /* - * Fill in the HS isoc and interrupt descriptors from the module - * parameters. We assume that the user knows what they are doing and - * won't give parameters that their UDC doesn't support. + * Fill in the HS isoc descriptors from the module parameters. + * We assume that the user knows what they are doing and won't + * give parameters that their UDC doesn't support. */ hs_iso_source_desc.wMaxPacketSize = isoc_maxpacket; hs_iso_source_desc.wMaxPacketSize |= isoc_mult << 11; @@ -607,17 +432,6 @@ no_int: hs_iso_sink_desc.bInterval = isoc_interval; hs_iso_sink_desc.bEndpointAddress = fs_iso_sink_desc.bEndpointAddress; - hs_int_source_desc.wMaxPacketSize = int_maxpacket; - hs_int_source_desc.wMaxPacketSize |= int_mult << 11; - hs_int_source_desc.bInterval = USB_MS_TO_HS_INTERVAL(int_interval); - hs_int_source_desc.bEndpointAddress = - fs_int_source_desc.bEndpointAddress; - - hs_int_sink_desc.wMaxPacketSize = int_maxpacket; - hs_int_sink_desc.wMaxPacketSize |= int_mult << 11; - hs_int_sink_desc.bInterval = USB_MS_TO_HS_INTERVAL(int_interval); - hs_int_sink_desc.bEndpointAddress = fs_int_sink_desc.bEndpointAddress; - /* support super speed hardware */ ss_source_desc.bEndpointAddress = fs_source_desc.bEndpointAddress; @@ -625,9 +439,9 @@ no_int: fs_sink_desc.bEndpointAddress; /* - * Fill in the SS isoc and interrupt descriptors from the module - * parameters. We assume that the user knows what they are doing and - * won't give parameters that their UDC doesn't support. + * Fill in the SS isoc descriptors from the module parameters. + * We assume that the user knows what they are doing and won't + * give parameters that their UDC doesn't support. */ ss_iso_source_desc.wMaxPacketSize = isoc_maxpacket; ss_iso_source_desc.bInterval = isoc_interval; @@ -646,37 +460,17 @@ no_int: isoc_maxpacket * (isoc_mult + 1) * (isoc_maxburst + 1); ss_iso_sink_desc.bEndpointAddress = fs_iso_sink_desc.bEndpointAddress; - ss_int_source_desc.wMaxPacketSize = int_maxpacket; - ss_int_source_desc.bInterval = USB_MS_TO_SS_INTERVAL(int_interval); - ss_int_source_comp_desc.bmAttributes = int_mult; - ss_int_source_comp_desc.bMaxBurst = int_maxburst; - ss_int_source_comp_desc.wBytesPerInterval = - int_maxpacket * (int_mult + 1) * (int_maxburst + 1); - ss_int_source_desc.bEndpointAddress = - fs_int_source_desc.bEndpointAddress; - - ss_int_sink_desc.wMaxPacketSize = int_maxpacket; - ss_int_sink_desc.bInterval = USB_MS_TO_SS_INTERVAL(int_interval); - ss_int_sink_comp_desc.bmAttributes = int_mult; - ss_int_sink_comp_desc.bMaxBurst = int_maxburst; - ss_int_sink_comp_desc.wBytesPerInterval = - int_maxpacket * (int_mult + 1) * (int_maxburst + 1); - ss_int_sink_desc.bEndpointAddress = fs_int_sink_desc.bEndpointAddress; - ret = usb_assign_descriptors(f, fs_source_sink_descs, hs_source_sink_descs, ss_source_sink_descs); if (ret) return ret; - DBG(cdev, "%s speed %s: IN/%s, OUT/%s, ISO-IN/%s, ISO-OUT/%s, " - "INT-IN/%s, INT-OUT/%s\n", + DBG(cdev, "%s speed %s: IN/%s, OUT/%s, ISO-IN/%s, ISO-OUT/%s\n", (gadget_is_superspeed(c->cdev->gadget) ? "super" : (gadget_is_dualspeed(c->cdev->gadget) ? "dual" : "full")), f->name, ss->in_ep->name, ss->out_ep->name, ss->iso_in_ep ? ss->iso_in_ep->name : "<none>", - ss->iso_out_ep ? ss->iso_out_ep->name : "<none>", - ss->int_in_ep ? ss->int_in_ep->name : "<none>", - ss->int_out_ep ? ss->int_out_ep->name : "<none>"); + ss->iso_out_ep ? ss->iso_out_ep->name : "<none>"); return 0; } @@ -807,15 +601,14 @@ static void source_sink_complete(struct usb_ep *ep, struct usb_request *req) } static int source_sink_start_ep(struct f_sourcesink *ss, bool is_in, - enum eptype ep_type, int speed) + bool is_iso, int speed) { struct usb_ep *ep; struct usb_request *req; int i, size, status; for (i = 0; i < 8; i++) { - switch (ep_type) { - case EP_ISOC: + if (is_iso) { switch (speed) { case USB_SPEED_SUPER: size = isoc_maxpacket * (isoc_mult + 1) * @@ -831,28 +624,9 @@ static int source_sink_start_ep(struct f_sourcesink *ss, bool is_in, } ep = is_in ? ss->iso_in_ep : ss->iso_out_ep; req = ss_alloc_ep_req(ep, size); - break; - case EP_INTERRUPT: - switch (speed) { - case USB_SPEED_SUPER: - size = int_maxpacket * (int_mult + 1) * - (int_maxburst + 1); - break; - case USB_SPEED_HIGH: - size = int_maxpacket * (int_mult + 1); - break; - default: - size = int_maxpacket > 1023 ? - 1023 : int_maxpacket; - break; - } - ep = is_in ? ss->int_in_ep : ss->int_out_ep; - req = ss_alloc_ep_req(ep, size); - break; - default: + } else { ep = is_in ? ss->in_ep : ss->out_ep; req = ss_alloc_ep_req(ep, 0); - break; } if (!req) @@ -870,12 +644,12 @@ static int source_sink_start_ep(struct f_sourcesink *ss, bool is_in, cdev = ss->function.config->cdev; ERROR(cdev, "start %s%s %s --> %d\n", - get_ep_string(ep_type), is_in ? "IN" : "OUT", - ep->name, status); + is_iso ? "ISO-" : "", is_in ? "IN" : "OUT", + ep->name, status); free_ep_req(ep, req); } - if (!(ep_type == EP_ISOC)) + if (!is_iso) break; } @@ -888,7 +662,7 @@ static void disable_source_sink(struct f_sourcesink *ss) cdev = ss->function.config->cdev; disable_endpoints(cdev, ss->in_ep, ss->out_ep, ss->iso_in_ep, - ss->iso_out_ep, ss->int_in_ep, ss->int_out_ep); + ss->iso_out_ep); VDBG(cdev, "%s disabled\n", ss->function.name); } @@ -900,62 +674,6 @@ enable_source_sink(struct usb_composite_dev *cdev, struct f_sourcesink *ss, int speed = cdev->gadget->speed; struct usb_ep *ep; - if (alt == 2) { - /* Configure for periodic interrupt endpoint */ - ep = ss->int_in_ep; - if (ep) { - result = config_ep_by_speed(cdev->gadget, - &(ss->function), ep); - if (result) - return result; - - result = usb_ep_enable(ep); - if (result < 0) - return result; - - ep->driver_data = ss; - result = source_sink_start_ep(ss, true, EP_INTERRUPT, - speed); - if (result < 0) { -fail1: - ep = ss->int_in_ep; - if (ep) { - usb_ep_disable(ep); - ep->driver_data = NULL; - } - return result; - } - } - - /* - * one interrupt endpoint reads (sinks) anything OUT (from the - * host) - */ - ep = ss->int_out_ep; - if (ep) { - result = config_ep_by_speed(cdev->gadget, - &(ss->function), ep); - if (result) - goto fail1; - - result = usb_ep_enable(ep); - if (result < 0) - goto fail1; - - ep->driver_data = ss; - result = source_sink_start_ep(ss, false, EP_INTERRUPT, - speed); - if (result < 0) { - ep = ss->int_out_ep; - usb_ep_disable(ep); - ep->driver_data = NULL; - goto fail1; - } - } - - goto out; - } - /* one bulk endpoint writes (sources) zeroes IN (to the host) */ ep = ss->in_ep; result = config_ep_by_speed(cdev->gadget, &(ss->function), ep); @@ -966,7 +684,7 @@ fail1: return result; ep->driver_data = ss; - result = source_sink_start_ep(ss, true, EP_BULK, speed); + result = source_sink_start_ep(ss, true, false, speed); if (result < 0) { fail: ep = ss->in_ep; @@ -985,7 +703,7 @@ fail: goto fail; ep->driver_data = ss; - result = source_sink_start_ep(ss, false, EP_BULK, speed); + result = source_sink_start_ep(ss, false, false, speed); if (result < 0) { fail2: ep = ss->out_ep; @@ -1008,7 +726,7 @@ fail2: goto fail2; ep->driver_data = ss; - result = source_sink_start_ep(ss, true, EP_ISOC, speed); + result = source_sink_start_ep(ss, true, true, speed); if (result < 0) { fail3: ep = ss->iso_in_ep; @@ -1031,14 +749,13 @@ fail3: goto fail3; ep->driver_data = ss; - result = source_sink_start_ep(ss, false, EP_ISOC, speed); + result = source_sink_start_ep(ss, false, true, speed); if (result < 0) { usb_ep_disable(ep); ep->driver_data = NULL; goto fail3; } } - out: ss->cur_alt = alt; @@ -1054,8 +771,6 @@ static int sourcesink_set_alt(struct usb_function *f, if (ss->in_ep->driver_data) disable_source_sink(ss); - else if (alt == 2 && ss->int_in_ep->driver_data) - disable_source_sink(ss); return enable_source_sink(cdev, ss, alt); } @@ -1168,10 +883,6 @@ static struct usb_function *source_sink_alloc_func( isoc_maxpacket = ss_opts->isoc_maxpacket; isoc_mult = ss_opts->isoc_mult; isoc_maxburst = ss_opts->isoc_maxburst; - int_interval = ss_opts->int_interval; - int_maxpacket = ss_opts->int_maxpacket; - int_mult = ss_opts->int_mult; - int_maxburst = ss_opts->int_maxburst; buflen = ss_opts->bulk_buflen; ss->function.name = "source/sink"; @@ -1468,182 +1179,6 @@ static struct f_ss_opts_attribute f_ss_opts_bulk_buflen = f_ss_opts_bulk_buflen_show, f_ss_opts_bulk_buflen_store); -static ssize_t f_ss_opts_int_interval_show(struct f_ss_opts *opts, char *page) -{ - int result; - - mutex_lock(&opts->lock); - result = sprintf(page, "%u", opts->int_interval); - mutex_unlock(&opts->lock); - - return result; -} - -static ssize_t f_ss_opts_int_interval_store(struct f_ss_opts *opts, - const char *page, size_t len) -{ - int ret; - u32 num; - - mutex_lock(&opts->lock); - if (opts->refcnt) { - ret = -EBUSY; - goto end; - } - - ret = kstrtou32(page, 0, &num); - if (ret) - goto end; - - if (num > 4096) { - ret = -EINVAL; - goto end; - } - - opts->int_interval = num; - ret = len; -end: - mutex_unlock(&opts->lock); - return ret; -} - -static struct f_ss_opts_attribute f_ss_opts_int_interval = - __CONFIGFS_ATTR(int_interval, S_IRUGO | S_IWUSR, - f_ss_opts_int_interval_show, - f_ss_opts_int_interval_store); - -static ssize_t f_ss_opts_int_maxpacket_show(struct f_ss_opts *opts, char *page) -{ - int result; - - mutex_lock(&opts->lock); - result = sprintf(page, "%u", opts->int_maxpacket); - mutex_unlock(&opts->lock); - - return result; -} - -static ssize_t f_ss_opts_int_maxpacket_store(struct f_ss_opts *opts, - const char *page, size_t len) -{ - int ret; - u16 num; - - mutex_lock(&opts->lock); - if (opts->refcnt) { - ret = -EBUSY; - goto end; - } - - ret = kstrtou16(page, 0, &num); - if (ret) - goto end; - - if (num > 1024) { - ret = -EINVAL; - goto end; - } - - opts->int_maxpacket = num; - ret = len; -end: - mutex_unlock(&opts->lock); - return ret; -} - -static struct f_ss_opts_attribute f_ss_opts_int_maxpacket = - __CONFIGFS_ATTR(int_maxpacket, S_IRUGO | S_IWUSR, - f_ss_opts_int_maxpacket_show, - f_ss_opts_int_maxpacket_store); - -static ssize_t f_ss_opts_int_mult_show(struct f_ss_opts *opts, char *page) -{ - int result; - - mutex_lock(&opts->lock); - result = sprintf(page, "%u", opts->int_mult); - mutex_unlock(&opts->lock); - - return result; -} - -static ssize_t f_ss_opts_int_mult_store(struct f_ss_opts *opts, - const char *page, size_t len) -{ - int ret; - u8 num; - - mutex_lock(&opts->lock); - if (opts->refcnt) { - ret = -EBUSY; - goto end; - } - - ret = kstrtou8(page, 0, &num); - if (ret) - goto end; - - if (num > 2) { - ret = -EINVAL; - goto end; - } - - opts->int_mult = num; - ret = len; -end: - mutex_unlock(&opts->lock); - return ret; -} - -static struct f_ss_opts_attribute f_ss_opts_int_mult = - __CONFIGFS_ATTR(int_mult, S_IRUGO | S_IWUSR, - f_ss_opts_int_mult_show, - f_ss_opts_int_mult_store); - -static ssize_t f_ss_opts_int_maxburst_show(struct f_ss_opts *opts, char *page) -{ - int result; - - mutex_lock(&opts->lock); - result = sprintf(page, "%u", opts->int_maxburst); - mutex_unlock(&opts->lock); - - return result; -} - -static ssize_t f_ss_opts_int_maxburst_store(struct f_ss_opts *opts, - const char *page, size_t len) -{ - int ret; - u8 num; - - mutex_lock(&opts->lock); - if (opts->refcnt) { - ret = -EBUSY; - goto end; - } - - ret = kstrtou8(page, 0, &num); - if (ret) - goto end; - - if (num > 15) { - ret = -EINVAL; - goto end; - } - - opts->int_maxburst = num; - ret = len; -end: - mutex_unlock(&opts->lock); - return ret; -} - -static struct f_ss_opts_attribute f_ss_opts_int_maxburst = - __CONFIGFS_ATTR(int_maxburst, S_IRUGO | S_IWUSR, - f_ss_opts_int_maxburst_show, - f_ss_opts_int_maxburst_store); - static struct configfs_attribute *ss_attrs[] = { &f_ss_opts_pattern.attr, &f_ss_opts_isoc_interval.attr, @@ -1651,10 +1186,6 @@ static struct configfs_attribute *ss_attrs[] = { &f_ss_opts_isoc_mult.attr, &f_ss_opts_isoc_maxburst.attr, &f_ss_opts_bulk_buflen.attr, - &f_ss_opts_int_interval.attr, - &f_ss_opts_int_maxpacket.attr, - &f_ss_opts_int_mult.attr, - &f_ss_opts_int_maxburst.attr, NULL, }; @@ -1684,8 +1215,6 @@ static struct usb_function_instance *source_sink_alloc_inst(void) ss_opts->isoc_interval = GZERO_ISOC_INTERVAL; ss_opts->isoc_maxpacket = GZERO_ISOC_MAXPACKET; ss_opts->bulk_buflen = GZERO_BULK_BUFLEN; - ss_opts->int_interval = GZERO_INT_INTERVAL; - ss_opts->int_maxpacket = GZERO_INT_MAXPACKET; config_group_init_type_name(&ss_opts->func_inst.group, "", &ss_func_type); diff --git a/drivers/usb/gadget/function/g_zero.h b/drivers/usb/gadget/function/g_zero.h index 2ce28b9d97cc..15f180904f8a 100644 --- a/drivers/usb/gadget/function/g_zero.h +++ b/drivers/usb/gadget/function/g_zero.h @@ -10,8 +10,6 @@ #define GZERO_QLEN 32 #define GZERO_ISOC_INTERVAL 4 #define GZERO_ISOC_MAXPACKET 1024 -#define GZERO_INT_INTERVAL 1 /* Default interrupt interval = 1 ms */ -#define GZERO_INT_MAXPACKET 1024 struct usb_zero_options { unsigned pattern; @@ -19,10 +17,6 @@ struct usb_zero_options { unsigned isoc_maxpacket; unsigned isoc_mult; unsigned isoc_maxburst; - unsigned int_interval; /* In ms */ - unsigned int_maxpacket; - unsigned int_mult; - unsigned int_maxburst; unsigned bulk_buflen; unsigned qlen; }; @@ -34,10 +28,6 @@ struct f_ss_opts { unsigned isoc_maxpacket; unsigned isoc_mult; unsigned isoc_maxburst; - unsigned int_interval; /* In ms */ - unsigned int_maxpacket; - unsigned int_mult; - unsigned int_maxburst; unsigned bulk_buflen; /* @@ -72,7 +62,6 @@ int lb_modinit(void); void free_ep_req(struct usb_ep *ep, struct usb_request *req); void disable_endpoints(struct usb_composite_dev *cdev, struct usb_ep *in, struct usb_ep *out, - struct usb_ep *iso_in, struct usb_ep *iso_out, - struct usb_ep *int_in, struct usb_ep *int_out); + struct usb_ep *iso_in, struct usb_ep *iso_out); #endif /* __G_ZERO_H */ diff --git a/drivers/usb/gadget/legacy/inode.c b/drivers/usb/gadget/legacy/inode.c index db49ec4c748e..200f9a584064 100644 --- a/drivers/usb/gadget/legacy/inode.c +++ b/drivers/usb/gadget/legacy/inode.c @@ -74,6 +74,8 @@ MODULE_DESCRIPTION (DRIVER_DESC); MODULE_AUTHOR ("David Brownell"); MODULE_LICENSE ("GPL"); +static int ep_open(struct inode *, struct file *); + /*----------------------------------------------------------------------*/ @@ -283,14 +285,15 @@ static void epio_complete (struct usb_ep *ep, struct usb_request *req) * still need dev->lock to use epdata->ep. */ static int -get_ready_ep (unsigned f_flags, struct ep_data *epdata) +get_ready_ep (unsigned f_flags, struct ep_data *epdata, bool is_write) { int val; if (f_flags & O_NONBLOCK) { if (!mutex_trylock(&epdata->lock)) goto nonblock; - if (epdata->state != STATE_EP_ENABLED) { + if (epdata->state != STATE_EP_ENABLED && + (!is_write || epdata->state != STATE_EP_READY)) { mutex_unlock(&epdata->lock); nonblock: val = -EAGAIN; @@ -305,18 +308,20 @@ nonblock: switch (epdata->state) { case STATE_EP_ENABLED: + return 0; + case STATE_EP_READY: /* not configured yet */ + if (is_write) + return 0; + // FALLTHRU + case STATE_EP_UNBOUND: /* clean disconnect */ break; // case STATE_EP_DISABLED: /* "can't happen" */ - // case STATE_EP_READY: /* "can't happen" */ default: /* error! */ pr_debug ("%s: ep %p not available, state %d\n", shortname, epdata, epdata->state); - // FALLTHROUGH - case STATE_EP_UNBOUND: /* clean disconnect */ - val = -ENODEV; - mutex_unlock(&epdata->lock); } - return val; + mutex_unlock(&epdata->lock); + return -ENODEV; } static ssize_t @@ -363,97 +368,6 @@ ep_io (struct ep_data *epdata, void *buf, unsigned len) return value; } - -/* handle a synchronous OUT bulk/intr/iso transfer */ -static ssize_t -ep_read (struct file *fd, char __user *buf, size_t len, loff_t *ptr) -{ - struct ep_data *data = fd->private_data; - void *kbuf; - ssize_t value; - - if ((value = get_ready_ep (fd->f_flags, data)) < 0) - return value; - - /* halt any endpoint by doing a "wrong direction" i/o call */ - if (usb_endpoint_dir_in(&data->desc)) { - if (usb_endpoint_xfer_isoc(&data->desc)) { - mutex_unlock(&data->lock); - return -EINVAL; - } - DBG (data->dev, "%s halt\n", data->name); - spin_lock_irq (&data->dev->lock); - if (likely (data->ep != NULL)) - usb_ep_set_halt (data->ep); - spin_unlock_irq (&data->dev->lock); - mutex_unlock(&data->lock); - return -EBADMSG; - } - - /* FIXME readahead for O_NONBLOCK and poll(); careful with ZLPs */ - - value = -ENOMEM; - kbuf = kmalloc (len, GFP_KERNEL); - if (unlikely (!kbuf)) - goto free1; - - value = ep_io (data, kbuf, len); - VDEBUG (data->dev, "%s read %zu OUT, status %d\n", - data->name, len, (int) value); - if (value >= 0 && copy_to_user (buf, kbuf, value)) - value = -EFAULT; - -free1: - mutex_unlock(&data->lock); - kfree (kbuf); - return value; -} - -/* handle a synchronous IN bulk/intr/iso transfer */ -static ssize_t -ep_write (struct file *fd, const char __user *buf, size_t len, loff_t *ptr) -{ - struct ep_data *data = fd->private_data; - void *kbuf; - ssize_t value; - - if ((value = get_ready_ep (fd->f_flags, data)) < 0) - return value; - - /* halt any endpoint by doing a "wrong direction" i/o call */ - if (!usb_endpoint_dir_in(&data->desc)) { - if (usb_endpoint_xfer_isoc(&data->desc)) { - mutex_unlock(&data->lock); - return -EINVAL; - } - DBG (data->dev, "%s halt\n", data->name); - spin_lock_irq (&data->dev->lock); - if (likely (data->ep != NULL)) - usb_ep_set_halt (data->ep); - spin_unlock_irq (&data->dev->lock); - mutex_unlock(&data->lock); - return -EBADMSG; - } - - /* FIXME writebehind for O_NONBLOCK and poll(), qlen = 1 */ - - value = -ENOMEM; - kbuf = memdup_user(buf, len); - if (IS_ERR(kbuf)) { - value = PTR_ERR(kbuf); - kbuf = NULL; - goto free1; - } - - value = ep_io (data, kbuf, len); - VDEBUG (data->dev, "%s write %zu IN, status %d\n", - data->name, len, (int) value); -free1: - mutex_unlock(&data->lock); - kfree (kbuf); - return value; -} - static int ep_release (struct inode *inode, struct file *fd) { @@ -481,7 +395,7 @@ static long ep_ioctl(struct file *fd, unsigned code, unsigned long value) struct ep_data *data = fd->private_data; int status; - if ((status = get_ready_ep (fd->f_flags, data)) < 0) + if ((status = get_ready_ep (fd->f_flags, data, false)) < 0) return status; spin_lock_irq (&data->dev->lock); @@ -517,8 +431,8 @@ struct kiocb_priv { struct mm_struct *mm; struct work_struct work; void *buf; - const struct iovec *iv; - unsigned long nr_segs; + struct iov_iter to; + const void *to_free; unsigned actual; }; @@ -541,35 +455,6 @@ static int ep_aio_cancel(struct kiocb *iocb) return value; } -static ssize_t ep_copy_to_user(struct kiocb_priv *priv) -{ - ssize_t len, total; - void *to_copy; - int i; - - /* copy stuff into user buffers */ - total = priv->actual; - len = 0; - to_copy = priv->buf; - for (i=0; i < priv->nr_segs; i++) { - ssize_t this = min((ssize_t)(priv->iv[i].iov_len), total); - - if (copy_to_user(priv->iv[i].iov_base, to_copy, this)) { - if (len == 0) - len = -EFAULT; - break; - } - - total -= this; - len += this; - to_copy += this; - if (total == 0) - break; - } - - return len; -} - static void ep_user_copy_worker(struct work_struct *work) { struct kiocb_priv *priv = container_of(work, struct kiocb_priv, work); @@ -578,13 +463,16 @@ static void ep_user_copy_worker(struct work_struct *work) size_t ret; use_mm(mm); - ret = ep_copy_to_user(priv); + ret = copy_to_iter(priv->buf, priv->actual, &priv->to); unuse_mm(mm); + if (!ret) + ret = -EFAULT; /* completing the iocb can drop the ctx and mm, don't touch mm after */ aio_complete(iocb, ret, ret); kfree(priv->buf); + kfree(priv->to_free); kfree(priv); } @@ -603,8 +491,9 @@ static void ep_aio_complete(struct usb_ep *ep, struct usb_request *req) * don't need to copy anything to userspace, so we can * complete the aio request immediately. */ - if (priv->iv == NULL || unlikely(req->actual == 0)) { + if (priv->to_free == NULL || unlikely(req->actual == 0)) { kfree(req->buf); + kfree(priv->to_free); kfree(priv); iocb->private = NULL; /* aio_complete() reports bytes-transferred _and_ faults */ @@ -618,6 +507,7 @@ static void ep_aio_complete(struct usb_ep *ep, struct usb_request *req) priv->buf = req->buf; priv->actual = req->actual; + INIT_WORK(&priv->work, ep_user_copy_worker); schedule_work(&priv->work); } spin_unlock(&epdata->dev->lock); @@ -626,38 +516,17 @@ static void ep_aio_complete(struct usb_ep *ep, struct usb_request *req) put_ep(epdata); } -static ssize_t -ep_aio_rwtail( - struct kiocb *iocb, - char *buf, - size_t len, - struct ep_data *epdata, - const struct iovec *iv, - unsigned long nr_segs -) +static ssize_t ep_aio(struct kiocb *iocb, + struct kiocb_priv *priv, + struct ep_data *epdata, + char *buf, + size_t len) { - struct kiocb_priv *priv; - struct usb_request *req; - ssize_t value; + struct usb_request *req; + ssize_t value; - priv = kmalloc(sizeof *priv, GFP_KERNEL); - if (!priv) { - value = -ENOMEM; -fail: - kfree(buf); - return value; - } iocb->private = priv; priv->iocb = iocb; - priv->iv = iv; - priv->nr_segs = nr_segs; - INIT_WORK(&priv->work, ep_user_copy_worker); - - value = get_ready_ep(iocb->ki_filp->f_flags, epdata); - if (unlikely(value < 0)) { - kfree(priv); - goto fail; - } kiocb_set_cancel_fn(iocb, ep_aio_cancel); get_ep(epdata); @@ -669,75 +538,154 @@ fail: * allocate or submit those if the host disconnected. */ spin_lock_irq(&epdata->dev->lock); - if (likely(epdata->ep)) { - req = usb_ep_alloc_request(epdata->ep, GFP_ATOMIC); - if (likely(req)) { - priv->req = req; - req->buf = buf; - req->length = len; - req->complete = ep_aio_complete; - req->context = iocb; - value = usb_ep_queue(epdata->ep, req, GFP_ATOMIC); - if (unlikely(0 != value)) - usb_ep_free_request(epdata->ep, req); - } else - value = -EAGAIN; - } else - value = -ENODEV; - spin_unlock_irq(&epdata->dev->lock); + value = -ENODEV; + if (unlikely(epdata->ep)) + goto fail; - mutex_unlock(&epdata->lock); + req = usb_ep_alloc_request(epdata->ep, GFP_ATOMIC); + value = -ENOMEM; + if (unlikely(!req)) + goto fail; - if (unlikely(value)) { - kfree(priv); - put_ep(epdata); - } else - value = -EIOCBQUEUED; + priv->req = req; + req->buf = buf; + req->length = len; + req->complete = ep_aio_complete; + req->context = iocb; + value = usb_ep_queue(epdata->ep, req, GFP_ATOMIC); + if (unlikely(0 != value)) { + usb_ep_free_request(epdata->ep, req); + goto fail; + } + spin_unlock_irq(&epdata->dev->lock); + return -EIOCBQUEUED; + +fail: + spin_unlock_irq(&epdata->dev->lock); + kfree(priv->to_free); + kfree(priv); + put_ep(epdata); return value; } static ssize_t -ep_aio_read(struct kiocb *iocb, const struct iovec *iov, - unsigned long nr_segs, loff_t o) +ep_read_iter(struct kiocb *iocb, struct iov_iter *to) { - struct ep_data *epdata = iocb->ki_filp->private_data; - char *buf; + struct file *file = iocb->ki_filp; + struct ep_data *epdata = file->private_data; + size_t len = iov_iter_count(to); + ssize_t value; + char *buf; - if (unlikely(usb_endpoint_dir_in(&epdata->desc))) - return -EINVAL; + if ((value = get_ready_ep(file->f_flags, epdata, false)) < 0) + return value; - buf = kmalloc(iocb->ki_nbytes, GFP_KERNEL); - if (unlikely(!buf)) - return -ENOMEM; + /* halt any endpoint by doing a "wrong direction" i/o call */ + if (usb_endpoint_dir_in(&epdata->desc)) { + if (usb_endpoint_xfer_isoc(&epdata->desc) || + !is_sync_kiocb(iocb)) { + mutex_unlock(&epdata->lock); + return -EINVAL; + } + DBG (epdata->dev, "%s halt\n", epdata->name); + spin_lock_irq(&epdata->dev->lock); + if (likely(epdata->ep != NULL)) + usb_ep_set_halt(epdata->ep); + spin_unlock_irq(&epdata->dev->lock); + mutex_unlock(&epdata->lock); + return -EBADMSG; + } - return ep_aio_rwtail(iocb, buf, iocb->ki_nbytes, epdata, iov, nr_segs); + buf = kmalloc(len, GFP_KERNEL); + if (unlikely(!buf)) { + mutex_unlock(&epdata->lock); + return -ENOMEM; + } + if (is_sync_kiocb(iocb)) { + value = ep_io(epdata, buf, len); + if (value >= 0 && copy_to_iter(buf, value, to)) + value = -EFAULT; + } else { + struct kiocb_priv *priv = kzalloc(sizeof *priv, GFP_KERNEL); + value = -ENOMEM; + if (!priv) + goto fail; + priv->to_free = dup_iter(&priv->to, to, GFP_KERNEL); + if (!priv->to_free) { + kfree(priv); + goto fail; + } + value = ep_aio(iocb, priv, epdata, buf, len); + if (value == -EIOCBQUEUED) + buf = NULL; + } +fail: + kfree(buf); + mutex_unlock(&epdata->lock); + return value; } +static ssize_t ep_config(struct ep_data *, const char *, size_t); + static ssize_t -ep_aio_write(struct kiocb *iocb, const struct iovec *iov, - unsigned long nr_segs, loff_t o) +ep_write_iter(struct kiocb *iocb, struct iov_iter *from) { - struct ep_data *epdata = iocb->ki_filp->private_data; - char *buf; - size_t len = 0; - int i = 0; + struct file *file = iocb->ki_filp; + struct ep_data *epdata = file->private_data; + size_t len = iov_iter_count(from); + bool configured; + ssize_t value; + char *buf; + + if ((value = get_ready_ep(file->f_flags, epdata, true)) < 0) + return value; - if (unlikely(!usb_endpoint_dir_in(&epdata->desc))) - return -EINVAL; + configured = epdata->state == STATE_EP_ENABLED; - buf = kmalloc(iocb->ki_nbytes, GFP_KERNEL); - if (unlikely(!buf)) + /* halt any endpoint by doing a "wrong direction" i/o call */ + if (configured && !usb_endpoint_dir_in(&epdata->desc)) { + if (usb_endpoint_xfer_isoc(&epdata->desc) || + !is_sync_kiocb(iocb)) { + mutex_unlock(&epdata->lock); + return -EINVAL; + } + DBG (epdata->dev, "%s halt\n", epdata->name); + spin_lock_irq(&epdata->dev->lock); + if (likely(epdata->ep != NULL)) + usb_ep_set_halt(epdata->ep); + spin_unlock_irq(&epdata->dev->lock); + mutex_unlock(&epdata->lock); + return -EBADMSG; + } + + buf = kmalloc(len, GFP_KERNEL); + if (unlikely(!buf)) { + mutex_unlock(&epdata->lock); return -ENOMEM; + } - for (i=0; i < nr_segs; i++) { - if (unlikely(copy_from_user(&buf[len], iov[i].iov_base, - iov[i].iov_len) != 0)) { - kfree(buf); - return -EFAULT; + if (unlikely(copy_from_iter(buf, len, from) != len)) { + value = -EFAULT; + goto out; + } + + if (unlikely(!configured)) { + value = ep_config(epdata, buf, len); + } else if (is_sync_kiocb(iocb)) { + value = ep_io(epdata, buf, len); + } else { + struct kiocb_priv *priv = kzalloc(sizeof *priv, GFP_KERNEL); + value = -ENOMEM; + if (priv) { + value = ep_aio(iocb, priv, epdata, buf, len); + if (value == -EIOCBQUEUED) + buf = NULL; } - len += iov[i].iov_len; } - return ep_aio_rwtail(iocb, buf, len, epdata, NULL, 0); +out: + kfree(buf); + mutex_unlock(&epdata->lock); + return value; } /*----------------------------------------------------------------------*/ @@ -745,15 +693,15 @@ ep_aio_write(struct kiocb *iocb, const struct iovec *iov, /* used after endpoint configuration */ static const struct file_operations ep_io_operations = { .owner = THIS_MODULE, - .llseek = no_llseek, - .read = ep_read, - .write = ep_write, - .unlocked_ioctl = ep_ioctl, + .open = ep_open, .release = ep_release, - - .aio_read = ep_aio_read, - .aio_write = ep_aio_write, + .llseek = no_llseek, + .read = new_sync_read, + .write = new_sync_write, + .unlocked_ioctl = ep_ioctl, + .read_iter = ep_read_iter, + .write_iter = ep_write_iter, }; /* ENDPOINT INITIALIZATION @@ -770,17 +718,12 @@ static const struct file_operations ep_io_operations = { * speed descriptor, then optional high speed descriptor. */ static ssize_t -ep_config (struct file *fd, const char __user *buf, size_t len, loff_t *ptr) +ep_config (struct ep_data *data, const char *buf, size_t len) { - struct ep_data *data = fd->private_data; struct usb_ep *ep; u32 tag; int value, length = len; - value = mutex_lock_interruptible(&data->lock); - if (value < 0) - return value; - if (data->state != STATE_EP_READY) { value = -EL2HLT; goto fail; @@ -791,9 +734,7 @@ ep_config (struct file *fd, const char __user *buf, size_t len, loff_t *ptr) goto fail0; /* we might need to change message format someday */ - if (copy_from_user (&tag, buf, 4)) { - goto fail1; - } + memcpy(&tag, buf, 4); if (tag != 1) { DBG(data->dev, "config %s, bad tag %d\n", data->name, tag); goto fail0; @@ -806,19 +747,15 @@ ep_config (struct file *fd, const char __user *buf, size_t len, loff_t *ptr) */ /* full/low speed descriptor, then high speed */ - if (copy_from_user (&data->desc, buf, USB_DT_ENDPOINT_SIZE)) { - goto fail1; - } + memcpy(&data->desc, buf, USB_DT_ENDPOINT_SIZE); if (data->desc.bLength != USB_DT_ENDPOINT_SIZE || data->desc.bDescriptorType != USB_DT_ENDPOINT) goto fail0; if (len != USB_DT_ENDPOINT_SIZE) { if (len != 2 * USB_DT_ENDPOINT_SIZE) goto fail0; - if (copy_from_user (&data->hs_desc, buf + USB_DT_ENDPOINT_SIZE, - USB_DT_ENDPOINT_SIZE)) { - goto fail1; - } + memcpy(&data->hs_desc, buf + USB_DT_ENDPOINT_SIZE, + USB_DT_ENDPOINT_SIZE); if (data->hs_desc.bLength != USB_DT_ENDPOINT_SIZE || data->hs_desc.bDescriptorType != USB_DT_ENDPOINT) { @@ -840,24 +777,20 @@ ep_config (struct file *fd, const char __user *buf, size_t len, loff_t *ptr) case USB_SPEED_LOW: case USB_SPEED_FULL: ep->desc = &data->desc; - value = usb_ep_enable(ep); - if (value == 0) - data->state = STATE_EP_ENABLED; break; case USB_SPEED_HIGH: /* fails if caller didn't provide that descriptor... */ ep->desc = &data->hs_desc; - value = usb_ep_enable(ep); - if (value == 0) - data->state = STATE_EP_ENABLED; break; default: DBG(data->dev, "unconnected, %s init abandoned\n", data->name); value = -EINVAL; + goto gone; } + value = usb_ep_enable(ep); if (value == 0) { - fd->f_op = &ep_io_operations; + data->state = STATE_EP_ENABLED; value = length; } gone: @@ -867,14 +800,10 @@ fail: data->desc.bDescriptorType = 0; data->hs_desc.bDescriptorType = 0; } - mutex_unlock(&data->lock); return value; fail0: value = -EINVAL; goto fail; -fail1: - value = -EFAULT; - goto fail; } static int @@ -902,15 +831,6 @@ ep_open (struct inode *inode, struct file *fd) return value; } -/* used before endpoint configuration */ -static const struct file_operations ep_config_operations = { - .llseek = no_llseek, - - .open = ep_open, - .write = ep_config, - .release = ep_release, -}; - /*----------------------------------------------------------------------*/ /* EP0 IMPLEMENTATION can be partly in userspace. @@ -989,6 +909,10 @@ ep0_read (struct file *fd, char __user *buf, size_t len, loff_t *ptr) enum ep0_state state; spin_lock_irq (&dev->lock); + if (dev->state <= STATE_DEV_OPENED) { + retval = -EINVAL; + goto done; + } /* report fd mode change before acting on it */ if (dev->setup_abort) { @@ -1187,8 +1111,6 @@ ep0_write (struct file *fd, const char __user *buf, size_t len, loff_t *ptr) struct dev_data *dev = fd->private_data; ssize_t retval = -ESRCH; - spin_lock_irq (&dev->lock); - /* report fd mode change before acting on it */ if (dev->setup_abort) { dev->setup_abort = 0; @@ -1234,7 +1156,6 @@ ep0_write (struct file *fd, const char __user *buf, size_t len, loff_t *ptr) } else DBG (dev, "fail %s, state %d\n", __func__, dev->state); - spin_unlock_irq (&dev->lock); return retval; } @@ -1281,6 +1202,9 @@ ep0_poll (struct file *fd, poll_table *wait) struct dev_data *dev = fd->private_data; int mask = 0; + if (dev->state <= STATE_DEV_OPENED) + return DEFAULT_POLLMASK; + poll_wait(fd, &dev->wait, wait); spin_lock_irq (&dev->lock); @@ -1316,19 +1240,6 @@ static long dev_ioctl (struct file *fd, unsigned code, unsigned long value) return ret; } -/* used after device configuration */ -static const struct file_operations ep0_io_operations = { - .owner = THIS_MODULE, - .llseek = no_llseek, - - .read = ep0_read, - .write = ep0_write, - .fasync = ep0_fasync, - .poll = ep0_poll, - .unlocked_ioctl = dev_ioctl, - .release = dev_release, -}; - /*----------------------------------------------------------------------*/ /* The in-kernel gadget driver handles most ep0 issues, in particular @@ -1650,7 +1561,7 @@ static int activate_ep_files (struct dev_data *dev) goto enomem1; data->dentry = gadgetfs_create_file (dev->sb, data->name, - data, &ep_config_operations); + data, &ep_io_operations); if (!data->dentry) goto enomem2; list_add_tail (&data->epfiles, &dev->epfiles); @@ -1852,6 +1763,14 @@ dev_config (struct file *fd, const char __user *buf, size_t len, loff_t *ptr) u32 tag; char *kbuf; + spin_lock_irq(&dev->lock); + if (dev->state > STATE_DEV_OPENED) { + value = ep0_write(fd, buf, len, ptr); + spin_unlock_irq(&dev->lock); + return value; + } + spin_unlock_irq(&dev->lock); + if (len < (USB_DT_CONFIG_SIZE + USB_DT_DEVICE_SIZE + 4)) return -EINVAL; @@ -1925,7 +1844,6 @@ dev_config (struct file *fd, const char __user *buf, size_t len, loff_t *ptr) * on, they can work ... except in cleanup paths that * kick in after the ep0 descriptor is closed. */ - fd->f_op = &ep0_io_operations; value = len; } return value; @@ -1956,12 +1874,14 @@ dev_open (struct inode *inode, struct file *fd) return value; } -static const struct file_operations dev_init_operations = { +static const struct file_operations ep0_operations = { .llseek = no_llseek, .open = dev_open, + .read = ep0_read, .write = dev_config, .fasync = ep0_fasync, + .poll = ep0_poll, .unlocked_ioctl = dev_ioctl, .release = dev_release, }; @@ -2077,7 +1997,7 @@ gadgetfs_fill_super (struct super_block *sb, void *opts, int silent) goto Enomem; dev->sb = sb; - dev->dentry = gadgetfs_create_file(sb, CHIP, dev, &dev_init_operations); + dev->dentry = gadgetfs_create_file(sb, CHIP, dev, &ep0_operations); if (!dev->dentry) { put_dev(dev); goto Enomem; diff --git a/drivers/usb/gadget/legacy/tcm_usb_gadget.c b/drivers/usb/gadget/legacy/tcm_usb_gadget.c index 3a494168661e..6e0a019aad54 100644 --- a/drivers/usb/gadget/legacy/tcm_usb_gadget.c +++ b/drivers/usb/gadget/legacy/tcm_usb_gadget.c @@ -1740,10 +1740,9 @@ static int tcm_usbg_make_nexus(struct usbg_tpg *tpg, char *name) goto err_session; } /* - * Now register the TCM vHost virtual I_T Nexus as active with the - * call to __transport_register_session() + * Now register the TCM vHost virtual I_T Nexus as active. */ - __transport_register_session(se_tpg, tv_nexus->tvn_se_sess->se_node_acl, + transport_register_session(se_tpg, tv_nexus->tvn_se_sess->se_node_acl, tv_nexus->tvn_se_sess, tv_nexus); tpg->tpg_nexus = tv_nexus; mutex_unlock(&tpg->tpg_mutex); diff --git a/drivers/usb/gadget/legacy/zero.c b/drivers/usb/gadget/legacy/zero.c index ff97ac93ac03..5ee95152493c 100644 --- a/drivers/usb/gadget/legacy/zero.c +++ b/drivers/usb/gadget/legacy/zero.c @@ -68,8 +68,6 @@ static struct usb_zero_options gzero_options = { .isoc_maxpacket = GZERO_ISOC_MAXPACKET, .bulk_buflen = GZERO_BULK_BUFLEN, .qlen = GZERO_QLEN, - .int_interval = GZERO_INT_INTERVAL, - .int_maxpacket = GZERO_INT_MAXPACKET, }; /*-------------------------------------------------------------------------*/ @@ -268,21 +266,6 @@ module_param_named(isoc_maxburst, gzero_options.isoc_maxburst, uint, S_IRUGO|S_IWUSR); MODULE_PARM_DESC(isoc_maxburst, "0 - 15 (ss only)"); -module_param_named(int_interval, gzero_options.int_interval, uint, - S_IRUGO|S_IWUSR); -MODULE_PARM_DESC(int_interval, "1 - 16"); - -module_param_named(int_maxpacket, gzero_options.int_maxpacket, uint, - S_IRUGO|S_IWUSR); -MODULE_PARM_DESC(int_maxpacket, "0 - 1023 (fs), 0 - 1024 (hs/ss)"); - -module_param_named(int_mult, gzero_options.int_mult, uint, S_IRUGO|S_IWUSR); -MODULE_PARM_DESC(int_mult, "0 - 2 (hs/ss only)"); - -module_param_named(int_maxburst, gzero_options.int_maxburst, uint, - S_IRUGO|S_IWUSR); -MODULE_PARM_DESC(int_maxburst, "0 - 15 (ss only)"); - static struct usb_function *func_lb; static struct usb_function_instance *func_inst_lb; @@ -318,10 +301,6 @@ static int __init zero_bind(struct usb_composite_dev *cdev) ss_opts->isoc_maxpacket = gzero_options.isoc_maxpacket; ss_opts->isoc_mult = gzero_options.isoc_mult; ss_opts->isoc_maxburst = gzero_options.isoc_maxburst; - ss_opts->int_interval = gzero_options.int_interval; - ss_opts->int_maxpacket = gzero_options.int_maxpacket; - ss_opts->int_mult = gzero_options.int_mult; - ss_opts->int_maxburst = gzero_options.int_maxburst; ss_opts->bulk_buflen = gzero_options.bulk_buflen; func_ss = usb_get_function(func_inst_ss); diff --git a/drivers/usb/host/ehci-atmel.c b/drivers/usb/host/ehci-atmel.c index 663f7908b15c..be0964a801e8 100644 --- a/drivers/usb/host/ehci-atmel.c +++ b/drivers/usb/host/ehci-atmel.c @@ -34,7 +34,6 @@ static const char hcd_name[] = "ehci-atmel"; struct atmel_ehci_priv { struct clk *iclk; - struct clk *fclk; struct clk *uclk; bool clocked; }; @@ -51,12 +50,9 @@ static void atmel_start_clock(struct atmel_ehci_priv *atmel_ehci) { if (atmel_ehci->clocked) return; - if (IS_ENABLED(CONFIG_COMMON_CLK)) { - clk_set_rate(atmel_ehci->uclk, 48000000); - clk_prepare_enable(atmel_ehci->uclk); - } + + clk_prepare_enable(atmel_ehci->uclk); clk_prepare_enable(atmel_ehci->iclk); - clk_prepare_enable(atmel_ehci->fclk); atmel_ehci->clocked = true; } @@ -64,10 +60,9 @@ static void atmel_stop_clock(struct atmel_ehci_priv *atmel_ehci) { if (!atmel_ehci->clocked) return; - clk_disable_unprepare(atmel_ehci->fclk); + clk_disable_unprepare(atmel_ehci->iclk); - if (IS_ENABLED(CONFIG_COMMON_CLK)) - clk_disable_unprepare(atmel_ehci->uclk); + clk_disable_unprepare(atmel_ehci->uclk); atmel_ehci->clocked = false; } @@ -146,20 +141,13 @@ static int ehci_atmel_drv_probe(struct platform_device *pdev) retval = -ENOENT; goto fail_request_resource; } - atmel_ehci->fclk = devm_clk_get(&pdev->dev, "uhpck"); - if (IS_ERR(atmel_ehci->fclk)) { - dev_err(&pdev->dev, "Error getting function clock\n"); - retval = -ENOENT; + + atmel_ehci->uclk = devm_clk_get(&pdev->dev, "usb_clk"); + if (IS_ERR(atmel_ehci->uclk)) { + dev_err(&pdev->dev, "failed to get uclk\n"); + retval = PTR_ERR(atmel_ehci->uclk); goto fail_request_resource; } - if (IS_ENABLED(CONFIG_COMMON_CLK)) { - atmel_ehci->uclk = devm_clk_get(&pdev->dev, "usb_clk"); - if (IS_ERR(atmel_ehci->uclk)) { - dev_err(&pdev->dev, "failed to get uclk\n"); - retval = PTR_ERR(atmel_ehci->uclk); - goto fail_request_resource; - } - } ehci = hcd_to_ehci(hcd); /* registers start at offset 0x0 */ diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 5fb66db89e05..73485fa4372f 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -1729,7 +1729,7 @@ static void xhci_cleanup_halted_endpoint(struct xhci_hcd *xhci, if (!command) return; - ep->ep_state |= EP_HALTED | EP_RECENTLY_HALTED; + ep->ep_state |= EP_HALTED; ep->stopped_stream = stream_id; xhci_queue_reset_ep(xhci, command, slot_id, ep_index); diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index b06d1a53652d..ec8ac1674854 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -1338,12 +1338,6 @@ int xhci_urb_enqueue(struct usb_hcd *hcd, struct urb *urb, gfp_t mem_flags) goto exit; } - /* Reject urb if endpoint is in soft reset, queue must stay empty */ - if (xhci->devs[slot_id]->eps[ep_index].ep_state & EP_CONFIG_PENDING) { - xhci_warn(xhci, "Can't enqueue URB while ep is in soft reset\n"); - ret = -EINVAL; - } - if (usb_endpoint_xfer_isoc(&urb->ep->desc)) size = urb->number_of_packets; else @@ -2954,36 +2948,23 @@ void xhci_cleanup_stalled_ring(struct xhci_hcd *xhci, } } -/* Called after clearing a halted device. USB core should have sent the control +/* Called when clearing halted device. The core should have sent the control * message to clear the device halt condition. The host side of the halt should - * already be cleared with a reset endpoint command issued immediately when the - * STALL tx event was received. + * already be cleared with a reset endpoint command issued when the STALL tx + * event was received. + * + * Context: in_interrupt */ void xhci_endpoint_reset(struct usb_hcd *hcd, struct usb_host_endpoint *ep) { struct xhci_hcd *xhci; - struct usb_device *udev; - struct xhci_virt_device *virt_dev; - struct xhci_virt_ep *virt_ep; - struct xhci_input_control_ctx *ctrl_ctx; - struct xhci_command *command; - unsigned int ep_index, ep_state; - unsigned long flags; - u32 ep_flag; xhci = hcd_to_xhci(hcd); - udev = (struct usb_device *) ep->hcpriv; - if (!ep->hcpriv) - return; - virt_dev = xhci->devs[udev->slot_id]; - ep_index = xhci_get_endpoint_index(&ep->desc); - virt_ep = &virt_dev->eps[ep_index]; - ep_state = virt_ep->ep_state; /* - * Implement the config ep command in xhci 4.6.8 additional note: + * We might need to implement the config ep cmd in xhci 4.8.1 note: * The Reset Endpoint Command may only be issued to endpoints in the * Halted state. If software wishes reset the Data Toggle or Sequence * Number of an endpoint that isn't in the Halted state, then software @@ -2991,72 +2972,9 @@ void xhci_endpoint_reset(struct usb_hcd *hcd, * for the target endpoint. that is in the Stopped state. */ - if (ep_state & SET_DEQ_PENDING || ep_state & EP_RECENTLY_HALTED) { - virt_ep->ep_state &= ~EP_RECENTLY_HALTED; - xhci_dbg(xhci, "ep recently halted, no toggle reset needed\n"); - return; - } - - /* Only interrupt and bulk ep's use Data toggle, USB2 spec 5.5.4-> */ - if (usb_endpoint_xfer_control(&ep->desc) || - usb_endpoint_xfer_isoc(&ep->desc)) - return; - - ep_flag = xhci_get_endpoint_flag(&ep->desc); - - if (ep_flag == SLOT_FLAG || ep_flag == EP0_FLAG) - return; - - command = xhci_alloc_command(xhci, true, true, GFP_NOWAIT); - if (!command) { - xhci_err(xhci, "Could not allocate xHCI command structure.\n"); - return; - } - - spin_lock_irqsave(&xhci->lock, flags); - - /* block ringing ep doorbell */ - virt_ep->ep_state |= EP_CONFIG_PENDING; - - /* - * Make sure endpoint ring is empty before resetting the toggle/seq. - * Driver is required to synchronously cancel all transfer request. - * - * xhci 4.6.6 says we can issue a configure endpoint command on a - * running endpoint ring as long as it's idle (queue empty) - */ - - if (!list_empty(&virt_ep->ring->td_list)) { - dev_err(&udev->dev, "EP not empty, refuse reset\n"); - spin_unlock_irqrestore(&xhci->lock, flags); - goto cleanup; - } - - xhci_dbg(xhci, "Reset toggle/seq for slot %d, ep_index: %d\n", - udev->slot_id, ep_index); - - ctrl_ctx = xhci_get_input_control_ctx(command->in_ctx); - if (!ctrl_ctx) { - xhci_err(xhci, "Could not get input context, bad type. virt_dev: %p, in_ctx %p\n", - virt_dev, virt_dev->in_ctx); - spin_unlock_irqrestore(&xhci->lock, flags); - goto cleanup; - } - xhci_setup_input_ctx_for_config_ep(xhci, command->in_ctx, - virt_dev->out_ctx, ctrl_ctx, - ep_flag, ep_flag); - xhci_endpoint_copy(xhci, command->in_ctx, virt_dev->out_ctx, ep_index); - - xhci_queue_configure_endpoint(xhci, command, command->in_ctx->dma, - udev->slot_id, false); - xhci_ring_cmd_db(xhci); - spin_unlock_irqrestore(&xhci->lock, flags); - - wait_for_completion(command->completion); - -cleanup: - virt_ep->ep_state &= ~EP_CONFIG_PENDING; - xhci_free_command(xhci, command); + /* For now just print debug to follow the situation */ + xhci_dbg(xhci, "Endpoint 0x%x ep reset callback called\n", + ep->desc.bEndpointAddress); } static int xhci_check_streams_endpoint(struct xhci_hcd *xhci, diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 265ab1771d24..8e421b89632d 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -865,8 +865,6 @@ struct xhci_virt_ep { #define EP_HAS_STREAMS (1 << 4) /* Transitioning the endpoint to not using streams, don't enqueue URBs */ #define EP_GETTING_NO_STREAMS (1 << 5) -#define EP_RECENTLY_HALTED (1 << 6) -#define EP_CONFIG_PENDING (1 << 7) /* ---- Related to URB cancellation ---- */ struct list_head cancelled_td_list; struct xhci_td *stopped_td; diff --git a/drivers/usb/isp1760/isp1760-core.c b/drivers/usb/isp1760/isp1760-core.c index b9827556455f..bfa402cf3a27 100644 --- a/drivers/usb/isp1760/isp1760-core.c +++ b/drivers/usb/isp1760/isp1760-core.c @@ -151,8 +151,7 @@ int isp1760_register(struct resource *mem, int irq, unsigned long irqflags, } if (IS_ENABLED(CONFIG_USB_ISP1761_UDC) && !udc_disabled) { - ret = isp1760_udc_register(isp, irq, irqflags | IRQF_SHARED | - IRQF_DISABLED); + ret = isp1760_udc_register(isp, irq, irqflags); if (ret < 0) { isp1760_hcd_unregister(&isp->hcd); return ret; diff --git a/drivers/usb/isp1760/isp1760-udc.c b/drivers/usb/isp1760/isp1760-udc.c index 9612d7990565..f32c292cc868 100644 --- a/drivers/usb/isp1760/isp1760-udc.c +++ b/drivers/usb/isp1760/isp1760-udc.c @@ -1191,6 +1191,7 @@ static int isp1760_udc_start(struct usb_gadget *gadget, struct usb_gadget_driver *driver) { struct isp1760_udc *udc = gadget_to_udc(gadget); + unsigned long flags; /* The hardware doesn't support low speed. */ if (driver->max_speed < USB_SPEED_FULL) { @@ -1198,7 +1199,7 @@ static int isp1760_udc_start(struct usb_gadget *gadget, return -EINVAL; } - spin_lock(&udc->lock); + spin_lock_irqsave(&udc->lock, flags); if (udc->driver) { dev_err(udc->isp->dev, "UDC already has a gadget driver\n"); @@ -1208,7 +1209,7 @@ static int isp1760_udc_start(struct usb_gadget *gadget, udc->driver = driver; - spin_unlock(&udc->lock); + spin_unlock_irqrestore(&udc->lock, flags); dev_dbg(udc->isp->dev, "starting UDC with driver %s\n", driver->function); @@ -1232,6 +1233,7 @@ static int isp1760_udc_start(struct usb_gadget *gadget, static int isp1760_udc_stop(struct usb_gadget *gadget) { struct isp1760_udc *udc = gadget_to_udc(gadget); + unsigned long flags; dev_dbg(udc->isp->dev, "%s\n", __func__); @@ -1239,9 +1241,9 @@ static int isp1760_udc_stop(struct usb_gadget *gadget) isp1760_udc_write(udc, DC_MODE, 0); - spin_lock(&udc->lock); + spin_lock_irqsave(&udc->lock, flags); udc->driver = NULL; - spin_unlock(&udc->lock); + spin_unlock_irqrestore(&udc->lock, flags); return 0; } @@ -1411,7 +1413,7 @@ static int isp1760_udc_init(struct isp1760_udc *udc) return -ENODEV; } - if (chipid != 0x00011582) { + if (chipid != 0x00011582 && chipid != 0x00158210) { dev_err(udc->isp->dev, "udc: invalid chip ID 0x%08x\n", chipid); return -ENODEV; } @@ -1451,8 +1453,8 @@ int isp1760_udc_register(struct isp1760_device *isp, int irq, sprintf(udc->irqname, "%s (udc)", devname); - ret = request_irq(irq, isp1760_udc_irq, IRQF_SHARED | IRQF_DISABLED | - irqflags, udc->irqname, udc); + ret = request_irq(irq, isp1760_udc_irq, IRQF_SHARED | irqflags, + udc->irqname, udc); if (ret < 0) goto error; diff --git a/drivers/usb/musb/Kconfig b/drivers/usb/musb/Kconfig index 14e1628483d9..39db8b603627 100644 --- a/drivers/usb/musb/Kconfig +++ b/drivers/usb/musb/Kconfig @@ -79,7 +79,8 @@ config USB_MUSB_TUSB6010 config USB_MUSB_OMAP2PLUS tristate "OMAP2430 and onwards" - depends on ARCH_OMAP2PLUS && USB && OMAP_CONTROL_PHY + depends on ARCH_OMAP2PLUS && USB + depends on OMAP_CONTROL_PHY || !OMAP_CONTROL_PHY select GENERIC_PHY config USB_MUSB_AM35X diff --git a/drivers/usb/phy/phy-am335x-control.c b/drivers/usb/phy/phy-am335x-control.c index 403fab772724..7b3035ff9434 100644 --- a/drivers/usb/phy/phy-am335x-control.c +++ b/drivers/usb/phy/phy-am335x-control.c @@ -126,6 +126,9 @@ struct phy_control *am335x_get_phy_control(struct device *dev) return NULL; dev = bus_find_device(&platform_bus_type, NULL, node, match); + if (!dev) + return NULL; + ctrl_usb = dev_get_drvdata(dev); if (!ctrl_usb) return NULL; diff --git a/drivers/usb/storage/unusual_uas.h b/drivers/usb/storage/unusual_uas.h index 82570425fdfe..c85ea530085f 100644 --- a/drivers/usb/storage/unusual_uas.h +++ b/drivers/usb/storage/unusual_uas.h @@ -113,6 +113,13 @@ UNUSUAL_DEV(0x0bc2, 0xab2a, 0x0000, 0x9999, USB_SC_DEVICE, USB_PR_DEVICE, NULL, US_FL_NO_ATA_1X), +/* Reported-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> */ +UNUSUAL_DEV(0x13fd, 0x3940, 0x0000, 0x9999, + "Initio Corporation", + "", + USB_SC_DEVICE, USB_PR_DEVICE, NULL, + US_FL_NO_ATA_1X), + /* Reported-by: Tom Arild Naess <tanaess@gmail.com> */ UNUSUAL_DEV(0x152d, 0x0539, 0x0000, 0x9999, "JMicron", diff --git a/drivers/vfio/pci/vfio_pci_intrs.c b/drivers/vfio/pci/vfio_pci_intrs.c index f88bfdf5b6a0..2027a27546ef 100644 --- a/drivers/vfio/pci/vfio_pci_intrs.c +++ b/drivers/vfio/pci/vfio_pci_intrs.c @@ -868,12 +868,14 @@ int vfio_pci_set_irqs_ioctl(struct vfio_pci_device *vdev, uint32_t flags, func = vfio_pci_set_err_trigger; break; } + break; case VFIO_PCI_REQ_IRQ_INDEX: switch (flags & VFIO_IRQ_SET_ACTION_TYPE_MASK) { case VFIO_IRQ_SET_ACTION_TRIGGER: func = vfio_pci_set_req_trigger; break; } + break; } if (!func) diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c index 8d4f3f1ff799..71df240a467a 100644 --- a/drivers/vhost/scsi.c +++ b/drivers/vhost/scsi.c @@ -1956,10 +1956,9 @@ static int vhost_scsi_make_nexus(struct vhost_scsi_tpg *tpg, goto out; } /* - * Now register the TCM vhost virtual I_T Nexus as active with the - * call to __transport_register_session() + * Now register the TCM vhost virtual I_T Nexus as active. */ - __transport_register_session(se_tpg, tv_nexus->tvn_se_sess->se_node_acl, + transport_register_session(se_tpg, tv_nexus->tvn_se_sess->se_node_acl, tv_nexus->tvn_se_sess, tv_nexus); tpg->tpg_nexus = tv_nexus; diff --git a/drivers/video/fbdev/amba-clcd.c b/drivers/video/fbdev/amba-clcd.c index 32c0b6b28097..9362424c2340 100644 --- a/drivers/video/fbdev/amba-clcd.c +++ b/drivers/video/fbdev/amba-clcd.c @@ -599,6 +599,9 @@ static int clcdfb_of_get_mode(struct device *dev, struct device_node *endpoint, len = clcdfb_snprintf_mode(NULL, 0, mode); name = devm_kzalloc(dev, len + 1, GFP_KERNEL); + if (!name) + return -ENOMEM; + clcdfb_snprintf_mode(name, len + 1, mode); mode->name = name; diff --git a/drivers/video/fbdev/core/fbmon.c b/drivers/video/fbdev/core/fbmon.c index 95338593ebf4..868facdec638 100644 --- a/drivers/video/fbdev/core/fbmon.c +++ b/drivers/video/fbdev/core/fbmon.c @@ -624,9 +624,6 @@ static struct fb_videomode *fb_create_modedb(unsigned char *edid, int *dbsize, int num = 0, i, first = 1; int ver, rev; - ver = edid[EDID_STRUCT_VERSION]; - rev = edid[EDID_STRUCT_REVISION]; - mode = kzalloc(50 * sizeof(struct fb_videomode), GFP_KERNEL); if (mode == NULL) return NULL; @@ -637,6 +634,9 @@ static struct fb_videomode *fb_create_modedb(unsigned char *edid, int *dbsize, return NULL; } + ver = edid[EDID_STRUCT_VERSION]; + rev = edid[EDID_STRUCT_REVISION]; + *dbsize = 0; DPRINTK(" Detailed Timings\n"); diff --git a/drivers/video/fbdev/omap2/dss/display-sysfs.c b/drivers/video/fbdev/omap2/dss/display-sysfs.c index 5a2095a98ed8..12186557a9d4 100644 --- a/drivers/video/fbdev/omap2/dss/display-sysfs.c +++ b/drivers/video/fbdev/omap2/dss/display-sysfs.c @@ -28,44 +28,22 @@ #include <video/omapdss.h> #include "dss.h" -static struct omap_dss_device *to_dss_device_sysfs(struct device *dev) +static ssize_t display_name_show(struct omap_dss_device *dssdev, char *buf) { - struct omap_dss_device *dssdev = NULL; - - for_each_dss_dev(dssdev) { - if (dssdev->dev == dev) { - omap_dss_put_device(dssdev); - return dssdev; - } - } - - return NULL; -} - -static ssize_t display_name_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct omap_dss_device *dssdev = to_dss_device_sysfs(dev); - return snprintf(buf, PAGE_SIZE, "%s\n", dssdev->name ? dssdev->name : ""); } -static ssize_t display_enabled_show(struct device *dev, - struct device_attribute *attr, char *buf) +static ssize_t display_enabled_show(struct omap_dss_device *dssdev, char *buf) { - struct omap_dss_device *dssdev = to_dss_device_sysfs(dev); - return snprintf(buf, PAGE_SIZE, "%d\n", omapdss_device_is_enabled(dssdev)); } -static ssize_t display_enabled_store(struct device *dev, - struct device_attribute *attr, +static ssize_t display_enabled_store(struct omap_dss_device *dssdev, const char *buf, size_t size) { - struct omap_dss_device *dssdev = to_dss_device_sysfs(dev); int r; bool enable; @@ -90,19 +68,16 @@ static ssize_t display_enabled_store(struct device *dev, return size; } -static ssize_t display_tear_show(struct device *dev, - struct device_attribute *attr, char *buf) +static ssize_t display_tear_show(struct omap_dss_device *dssdev, char *buf) { - struct omap_dss_device *dssdev = to_dss_device_sysfs(dev); return snprintf(buf, PAGE_SIZE, "%d\n", dssdev->driver->get_te ? dssdev->driver->get_te(dssdev) : 0); } -static ssize_t display_tear_store(struct device *dev, - struct device_attribute *attr, const char *buf, size_t size) +static ssize_t display_tear_store(struct omap_dss_device *dssdev, + const char *buf, size_t size) { - struct omap_dss_device *dssdev = to_dss_device_sysfs(dev); int r; bool te; @@ -120,10 +95,8 @@ static ssize_t display_tear_store(struct device *dev, return size; } -static ssize_t display_timings_show(struct device *dev, - struct device_attribute *attr, char *buf) +static ssize_t display_timings_show(struct omap_dss_device *dssdev, char *buf) { - struct omap_dss_device *dssdev = to_dss_device_sysfs(dev); struct omap_video_timings t; if (!dssdev->driver->get_timings) @@ -137,10 +110,9 @@ static ssize_t display_timings_show(struct device *dev, t.y_res, t.vfp, t.vbp, t.vsw); } -static ssize_t display_timings_store(struct device *dev, - struct device_attribute *attr, const char *buf, size_t size) +static ssize_t display_timings_store(struct omap_dss_device *dssdev, + const char *buf, size_t size) { - struct omap_dss_device *dssdev = to_dss_device_sysfs(dev); struct omap_video_timings t = dssdev->panel.timings; int r, found; @@ -176,10 +148,8 @@ static ssize_t display_timings_store(struct device *dev, return size; } -static ssize_t display_rotate_show(struct device *dev, - struct device_attribute *attr, char *buf) +static ssize_t display_rotate_show(struct omap_dss_device *dssdev, char *buf) { - struct omap_dss_device *dssdev = to_dss_device_sysfs(dev); int rotate; if (!dssdev->driver->get_rotate) return -ENOENT; @@ -187,10 +157,9 @@ static ssize_t display_rotate_show(struct device *dev, return snprintf(buf, PAGE_SIZE, "%u\n", rotate); } -static ssize_t display_rotate_store(struct device *dev, - struct device_attribute *attr, const char *buf, size_t size) +static ssize_t display_rotate_store(struct omap_dss_device *dssdev, + const char *buf, size_t size) { - struct omap_dss_device *dssdev = to_dss_device_sysfs(dev); int rot, r; if (!dssdev->driver->set_rotate || !dssdev->driver->get_rotate) @@ -207,10 +176,8 @@ static ssize_t display_rotate_store(struct device *dev, return size; } -static ssize_t display_mirror_show(struct device *dev, - struct device_attribute *attr, char *buf) +static ssize_t display_mirror_show(struct omap_dss_device *dssdev, char *buf) { - struct omap_dss_device *dssdev = to_dss_device_sysfs(dev); int mirror; if (!dssdev->driver->get_mirror) return -ENOENT; @@ -218,10 +185,9 @@ static ssize_t display_mirror_show(struct device *dev, return snprintf(buf, PAGE_SIZE, "%u\n", mirror); } -static ssize_t display_mirror_store(struct device *dev, - struct device_attribute *attr, const char *buf, size_t size) +static ssize_t display_mirror_store(struct omap_dss_device *dssdev, + const char *buf, size_t size) { - struct omap_dss_device *dssdev = to_dss_device_sysfs(dev); int r; bool mirror; @@ -239,10 +205,8 @@ static ssize_t display_mirror_store(struct device *dev, return size; } -static ssize_t display_wss_show(struct device *dev, - struct device_attribute *attr, char *buf) +static ssize_t display_wss_show(struct omap_dss_device *dssdev, char *buf) { - struct omap_dss_device *dssdev = to_dss_device_sysfs(dev); unsigned int wss; if (!dssdev->driver->get_wss) @@ -253,10 +217,9 @@ static ssize_t display_wss_show(struct device *dev, return snprintf(buf, PAGE_SIZE, "0x%05x\n", wss); } -static ssize_t display_wss_store(struct device *dev, - struct device_attribute *attr, const char *buf, size_t size) +static ssize_t display_wss_store(struct omap_dss_device *dssdev, + const char *buf, size_t size) { - struct omap_dss_device *dssdev = to_dss_device_sysfs(dev); u32 wss; int r; @@ -277,50 +240,94 @@ static ssize_t display_wss_store(struct device *dev, return size; } -static DEVICE_ATTR(display_name, S_IRUGO, display_name_show, NULL); -static DEVICE_ATTR(enabled, S_IRUGO|S_IWUSR, +struct display_attribute { + struct attribute attr; + ssize_t (*show)(struct omap_dss_device *, char *); + ssize_t (*store)(struct omap_dss_device *, const char *, size_t); +}; + +#define DISPLAY_ATTR(_name, _mode, _show, _store) \ + struct display_attribute display_attr_##_name = \ + __ATTR(_name, _mode, _show, _store) + +static DISPLAY_ATTR(name, S_IRUGO, display_name_show, NULL); +static DISPLAY_ATTR(display_name, S_IRUGO, display_name_show, NULL); +static DISPLAY_ATTR(enabled, S_IRUGO|S_IWUSR, display_enabled_show, display_enabled_store); -static DEVICE_ATTR(tear_elim, S_IRUGO|S_IWUSR, +static DISPLAY_ATTR(tear_elim, S_IRUGO|S_IWUSR, display_tear_show, display_tear_store); -static DEVICE_ATTR(timings, S_IRUGO|S_IWUSR, +static DISPLAY_ATTR(timings, S_IRUGO|S_IWUSR, display_timings_show, display_timings_store); -static DEVICE_ATTR(rotate, S_IRUGO|S_IWUSR, +static DISPLAY_ATTR(rotate, S_IRUGO|S_IWUSR, display_rotate_show, display_rotate_store); -static DEVICE_ATTR(mirror, S_IRUGO|S_IWUSR, +static DISPLAY_ATTR(mirror, S_IRUGO|S_IWUSR, display_mirror_show, display_mirror_store); -static DEVICE_ATTR(wss, S_IRUGO|S_IWUSR, +static DISPLAY_ATTR(wss, S_IRUGO|S_IWUSR, display_wss_show, display_wss_store); -static const struct attribute *display_sysfs_attrs[] = { - &dev_attr_display_name.attr, - &dev_attr_enabled.attr, - &dev_attr_tear_elim.attr, - &dev_attr_timings.attr, - &dev_attr_rotate.attr, - &dev_attr_mirror.attr, - &dev_attr_wss.attr, +static struct attribute *display_sysfs_attrs[] = { + &display_attr_name.attr, + &display_attr_display_name.attr, + &display_attr_enabled.attr, + &display_attr_tear_elim.attr, + &display_attr_timings.attr, + &display_attr_rotate.attr, + &display_attr_mirror.attr, + &display_attr_wss.attr, NULL }; +static ssize_t display_attr_show(struct kobject *kobj, struct attribute *attr, + char *buf) +{ + struct omap_dss_device *dssdev; + struct display_attribute *display_attr; + + dssdev = container_of(kobj, struct omap_dss_device, kobj); + display_attr = container_of(attr, struct display_attribute, attr); + + if (!display_attr->show) + return -ENOENT; + + return display_attr->show(dssdev, buf); +} + +static ssize_t display_attr_store(struct kobject *kobj, struct attribute *attr, + const char *buf, size_t size) +{ + struct omap_dss_device *dssdev; + struct display_attribute *display_attr; + + dssdev = container_of(kobj, struct omap_dss_device, kobj); + display_attr = container_of(attr, struct display_attribute, attr); + + if (!display_attr->store) + return -ENOENT; + + return display_attr->store(dssdev, buf, size); +} + +static const struct sysfs_ops display_sysfs_ops = { + .show = display_attr_show, + .store = display_attr_store, +}; + +static struct kobj_type display_ktype = { + .sysfs_ops = &display_sysfs_ops, + .default_attrs = display_sysfs_attrs, +}; + int display_init_sysfs(struct platform_device *pdev) { struct omap_dss_device *dssdev = NULL; int r; for_each_dss_dev(dssdev) { - struct kobject *kobj = &dssdev->dev->kobj; - - r = sysfs_create_files(kobj, display_sysfs_attrs); + r = kobject_init_and_add(&dssdev->kobj, &display_ktype, + &pdev->dev.kobj, dssdev->alias); if (r) { DSSERR("failed to create sysfs files\n"); - goto err; - } - - r = sysfs_create_link(&pdev->dev.kobj, kobj, dssdev->alias); - if (r) { - sysfs_remove_files(kobj, display_sysfs_attrs); - - DSSERR("failed to create sysfs display link\n"); + omap_dss_put_device(dssdev); goto err; } } @@ -338,8 +345,12 @@ void display_uninit_sysfs(struct platform_device *pdev) struct omap_dss_device *dssdev = NULL; for_each_dss_dev(dssdev) { - sysfs_remove_link(&pdev->dev.kobj, dssdev->alias); - sysfs_remove_files(&dssdev->dev->kobj, - display_sysfs_attrs); + if (kobject_name(&dssdev->kobj) == NULL) + continue; + + kobject_del(&dssdev->kobj); + kobject_put(&dssdev->kobj); + + memset(&dssdev->kobj, 0, sizeof(dssdev->kobj)); } } diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c index 0413157f3b49..6a356e344f82 100644 --- a/drivers/virtio/virtio_balloon.c +++ b/drivers/virtio/virtio_balloon.c @@ -29,6 +29,7 @@ #include <linux/module.h> #include <linux/balloon_compaction.h> #include <linux/oom.h> +#include <linux/wait.h> /* * Balloon device works in 4K page units. So each page is pointed to by @@ -334,17 +335,25 @@ static int virtballoon_oom_notify(struct notifier_block *self, static int balloon(void *_vballoon) { struct virtio_balloon *vb = _vballoon; + DEFINE_WAIT_FUNC(wait, woken_wake_function); set_freezable(); while (!kthread_should_stop()) { s64 diff; try_to_freeze(); - wait_event_interruptible(vb->config_change, - (diff = towards_target(vb)) != 0 - || vb->need_stats_update - || kthread_should_stop() - || freezing(current)); + + add_wait_queue(&vb->config_change, &wait); + for (;;) { + if ((diff = towards_target(vb)) != 0 || + vb->need_stats_update || + kthread_should_stop() || + freezing(current)) + break; + wait_woken(&wait, TASK_INTERRUPTIBLE, MAX_SCHEDULE_TIMEOUT); + } + remove_wait_queue(&vb->config_change, &wait); + if (vb->need_stats_update) stats_handle_request(vb); if (diff > 0) @@ -499,6 +508,8 @@ static int virtballoon_probe(struct virtio_device *vdev) if (err < 0) goto out_oom_notify; + virtio_device_ready(vdev); + vb->thread = kthread_run(balloon, vb, "vballoon"); if (IS_ERR(vb->thread)) { err = PTR_ERR(vb->thread); diff --git a/drivers/virtio/virtio_mmio.c b/drivers/virtio/virtio_mmio.c index cad569890908..6010d7ec0a0f 100644 --- a/drivers/virtio/virtio_mmio.c +++ b/drivers/virtio/virtio_mmio.c @@ -156,22 +156,95 @@ static void vm_get(struct virtio_device *vdev, unsigned offset, void *buf, unsigned len) { struct virtio_mmio_device *vm_dev = to_virtio_mmio_device(vdev); - u8 *ptr = buf; - int i; + void __iomem *base = vm_dev->base + VIRTIO_MMIO_CONFIG; + u8 b; + __le16 w; + __le32 l; - for (i = 0; i < len; i++) - ptr[i] = readb(vm_dev->base + VIRTIO_MMIO_CONFIG + offset + i); + if (vm_dev->version == 1) { + u8 *ptr = buf; + int i; + + for (i = 0; i < len; i++) + ptr[i] = readb(base + offset + i); + return; + } + + switch (len) { + case 1: + b = readb(base + offset); + memcpy(buf, &b, sizeof b); + break; + case 2: + w = cpu_to_le16(readw(base + offset)); + memcpy(buf, &w, sizeof w); + break; + case 4: + l = cpu_to_le32(readl(base + offset)); + memcpy(buf, &l, sizeof l); + break; + case 8: + l = cpu_to_le32(readl(base + offset)); + memcpy(buf, &l, sizeof l); + l = cpu_to_le32(ioread32(base + offset + sizeof l)); + memcpy(buf + sizeof l, &l, sizeof l); + break; + default: + BUG(); + } } static void vm_set(struct virtio_device *vdev, unsigned offset, const void *buf, unsigned len) { struct virtio_mmio_device *vm_dev = to_virtio_mmio_device(vdev); - const u8 *ptr = buf; - int i; + void __iomem *base = vm_dev->base + VIRTIO_MMIO_CONFIG; + u8 b; + __le16 w; + __le32 l; - for (i = 0; i < len; i++) - writeb(ptr[i], vm_dev->base + VIRTIO_MMIO_CONFIG + offset + i); + if (vm_dev->version == 1) { + const u8 *ptr = buf; + int i; + + for (i = 0; i < len; i++) + writeb(ptr[i], base + offset + i); + + return; + } + + switch (len) { + case 1: + memcpy(&b, buf, sizeof b); + writeb(b, base + offset); + break; + case 2: + memcpy(&w, buf, sizeof w); + writew(le16_to_cpu(w), base + offset); + break; + case 4: + memcpy(&l, buf, sizeof l); + writel(le32_to_cpu(l), base + offset); + break; + case 8: + memcpy(&l, buf, sizeof l); + writel(le32_to_cpu(l), base + offset); + memcpy(&l, buf + sizeof l, sizeof l); + writel(le32_to_cpu(l), base + offset + sizeof l); + break; + default: + BUG(); + } +} + +static u32 vm_generation(struct virtio_device *vdev) +{ + struct virtio_mmio_device *vm_dev = to_virtio_mmio_device(vdev); + + if (vm_dev->version == 1) + return 0; + else + return readl(vm_dev->base + VIRTIO_MMIO_CONFIG_GENERATION); } static u8 vm_get_status(struct virtio_device *vdev) @@ -440,6 +513,7 @@ static const char *vm_bus_name(struct virtio_device *vdev) static const struct virtio_config_ops virtio_mmio_config_ops = { .get = vm_get, .set = vm_set, + .generation = vm_generation, .get_status = vm_get_status, .set_status = vm_set_status, .reset = vm_reset, diff --git a/drivers/xen/events/events_base.c b/drivers/xen/events/events_base.c index b4bca2d4a7e5..70fba973a107 100644 --- a/drivers/xen/events/events_base.c +++ b/drivers/xen/events/events_base.c @@ -526,20 +526,26 @@ static unsigned int __startup_pirq(unsigned int irq) pirq_query_unmask(irq); rc = set_evtchn_to_irq(evtchn, irq); - if (rc != 0) { - pr_err("irq%d: Failed to set port to irq mapping (%d)\n", - irq, rc); - xen_evtchn_close(evtchn); - return 0; - } + if (rc) + goto err; + bind_evtchn_to_cpu(evtchn, 0); info->evtchn = evtchn; + rc = xen_evtchn_port_setup(info); + if (rc) + goto err; + out: unmask_evtchn(evtchn); eoi_pirq(irq_get_irq_data(irq)); return 0; + +err: + pr_err("irq%d: Failed to set port to irq mapping (%d)\n", irq, rc); + xen_evtchn_close(evtchn); + return 0; } static unsigned int startup_pirq(struct irq_data *data) diff --git a/drivers/xen/xen-pciback/conf_space.c b/drivers/xen/xen-pciback/conf_space.c index 46ae0f9f02ad..75fe3d466515 100644 --- a/drivers/xen/xen-pciback/conf_space.c +++ b/drivers/xen/xen-pciback/conf_space.c @@ -16,7 +16,7 @@ #include "conf_space.h" #include "conf_space_quirks.h" -static bool permissive; +bool permissive; module_param(permissive, bool, 0644); /* This is where xen_pcibk_read_config_byte, xen_pcibk_read_config_word, diff --git a/drivers/xen/xen-pciback/conf_space.h b/drivers/xen/xen-pciback/conf_space.h index e56c934ad137..2e1d73d1d5d0 100644 --- a/drivers/xen/xen-pciback/conf_space.h +++ b/drivers/xen/xen-pciback/conf_space.h @@ -64,6 +64,8 @@ struct config_field_entry { void *data; }; +extern bool permissive; + #define OFFSET(cfg_entry) ((cfg_entry)->base_offset+(cfg_entry)->field->offset) /* Add fields to a device - the add_fields macro expects to get a pointer to diff --git a/drivers/xen/xen-pciback/conf_space_header.c b/drivers/xen/xen-pciback/conf_space_header.c index c5ee82587e8c..2d7369391472 100644 --- a/drivers/xen/xen-pciback/conf_space_header.c +++ b/drivers/xen/xen-pciback/conf_space_header.c @@ -11,6 +11,10 @@ #include "pciback.h" #include "conf_space.h" +struct pci_cmd_info { + u16 val; +}; + struct pci_bar_info { u32 val; u32 len_val; @@ -20,22 +24,36 @@ struct pci_bar_info { #define is_enable_cmd(value) ((value)&(PCI_COMMAND_MEMORY|PCI_COMMAND_IO)) #define is_master_cmd(value) ((value)&PCI_COMMAND_MASTER) -static int command_read(struct pci_dev *dev, int offset, u16 *value, void *data) +/* Bits guests are allowed to control in permissive mode. */ +#define PCI_COMMAND_GUEST (PCI_COMMAND_MASTER|PCI_COMMAND_SPECIAL| \ + PCI_COMMAND_INVALIDATE|PCI_COMMAND_VGA_PALETTE| \ + PCI_COMMAND_WAIT|PCI_COMMAND_FAST_BACK) + +static void *command_init(struct pci_dev *dev, int offset) { - int i; - int ret; - - ret = xen_pcibk_read_config_word(dev, offset, value, data); - if (!pci_is_enabled(dev)) - return ret; - - for (i = 0; i < PCI_ROM_RESOURCE; i++) { - if (dev->resource[i].flags & IORESOURCE_IO) - *value |= PCI_COMMAND_IO; - if (dev->resource[i].flags & IORESOURCE_MEM) - *value |= PCI_COMMAND_MEMORY; + struct pci_cmd_info *cmd = kmalloc(sizeof(*cmd), GFP_KERNEL); + int err; + + if (!cmd) + return ERR_PTR(-ENOMEM); + + err = pci_read_config_word(dev, PCI_COMMAND, &cmd->val); + if (err) { + kfree(cmd); + return ERR_PTR(err); } + return cmd; +} + +static int command_read(struct pci_dev *dev, int offset, u16 *value, void *data) +{ + int ret = pci_read_config_word(dev, offset, value); + const struct pci_cmd_info *cmd = data; + + *value &= PCI_COMMAND_GUEST; + *value |= cmd->val & ~PCI_COMMAND_GUEST; + return ret; } @@ -43,6 +61,8 @@ static int command_write(struct pci_dev *dev, int offset, u16 value, void *data) { struct xen_pcibk_dev_data *dev_data; int err; + u16 val; + struct pci_cmd_info *cmd = data; dev_data = pci_get_drvdata(dev); if (!pci_is_enabled(dev) && is_enable_cmd(value)) { @@ -83,6 +103,19 @@ static int command_write(struct pci_dev *dev, int offset, u16 value, void *data) } } + cmd->val = value; + + if (!permissive && (!dev_data || !dev_data->permissive)) + return 0; + + /* Only allow the guest to control certain bits. */ + err = pci_read_config_word(dev, offset, &val); + if (err || val == value) + return err; + + value &= PCI_COMMAND_GUEST; + value |= val & ~PCI_COMMAND_GUEST; + return pci_write_config_word(dev, offset, value); } @@ -282,6 +315,8 @@ static const struct config_field header_common[] = { { .offset = PCI_COMMAND, .size = 2, + .init = command_init, + .release = bar_release, .u.w.read = command_read, .u.w.write = command_write, }, diff --git a/drivers/xen/xen-scsiback.c b/drivers/xen/xen-scsiback.c index 9faca6a60bb0..42bd55a6c237 100644 --- a/drivers/xen/xen-scsiback.c +++ b/drivers/xen/xen-scsiback.c @@ -1659,11 +1659,8 @@ static int scsiback_make_nexus(struct scsiback_tpg *tpg, name); goto out; } - /* - * Now register the TCM pvscsi virtual I_T Nexus as active with the - * call to __transport_register_session() - */ - __transport_register_session(se_tpg, tv_nexus->tvn_se_sess->se_node_acl, + /* Now register the TCM pvscsi virtual I_T Nexus as active. */ + transport_register_session(se_tpg, tv_nexus->tvn_se_sess->se_node_acl, tv_nexus->tvn_se_sess, tv_nexus); tpg->tpg_nexus = tv_nexus; |