diff options
Diffstat (limited to 'drivers/acpi')
| -rw-r--r-- | drivers/acpi/acpi_lpss.c | 14 | ||||
| -rw-r--r-- | drivers/acpi/acpi_tad.c | 2 | ||||
| -rw-r--r-- | drivers/acpi/apei/ghes.c | 6 | ||||
| -rw-r--r-- | drivers/acpi/arm64/gtdt.c | 4 | ||||
| -rw-r--r-- | drivers/acpi/arm64/iort.c | 126 | ||||
| -rw-r--r-- | drivers/acpi/device_pm.c | 31 | ||||
| -rw-r--r-- | drivers/acpi/ec.c | 2 | ||||
| -rw-r--r-- | drivers/acpi/sleep.c | 20 |
8 files changed, 90 insertions, 115 deletions
diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c index dee999938213..5e2bfbcf526f 100644 --- a/drivers/acpi/acpi_lpss.c +++ b/drivers/acpi/acpi_lpss.c @@ -1041,7 +1041,7 @@ static int acpi_lpss_do_suspend_late(struct device *dev) { int ret; - if (dev_pm_smart_suspend_and_suspended(dev)) + if (dev_pm_skip_suspend(dev)) return 0; ret = pm_generic_suspend_late(dev); @@ -1093,6 +1093,9 @@ static int acpi_lpss_resume_early(struct device *dev) if (pdata->dev_desc->resume_from_noirq) return 0; + if (dev_pm_skip_resume(dev)) + return 0; + return acpi_lpss_do_resume_early(dev); } @@ -1102,12 +1105,9 @@ static int acpi_lpss_resume_noirq(struct device *dev) int ret; /* Follow acpi_subsys_resume_noirq(). */ - if (dev_pm_may_skip_resume(dev)) + if (dev_pm_skip_resume(dev)) return 0; - if (dev_pm_smart_suspend_and_suspended(dev)) - pm_runtime_set_active(dev); - ret = pm_generic_resume_noirq(dev); if (ret) return ret; @@ -1169,7 +1169,7 @@ static int acpi_lpss_poweroff_late(struct device *dev) { struct lpss_private_data *pdata = acpi_driver_data(ACPI_COMPANION(dev)); - if (dev_pm_smart_suspend_and_suspended(dev)) + if (dev_pm_skip_suspend(dev)) return 0; if (pdata->dev_desc->resume_from_noirq) @@ -1182,7 +1182,7 @@ static int acpi_lpss_poweroff_noirq(struct device *dev) { struct lpss_private_data *pdata = acpi_driver_data(ACPI_COMPANION(dev)); - if (dev_pm_smart_suspend_and_suspended(dev)) + if (dev_pm_skip_suspend(dev)) return 0; if (pdata->dev_desc->resume_from_noirq) { diff --git a/drivers/acpi/acpi_tad.c b/drivers/acpi/acpi_tad.c index 33a4bcdaa4d7..7d45cce0c3c1 100644 --- a/drivers/acpi/acpi_tad.c +++ b/drivers/acpi/acpi_tad.c @@ -624,7 +624,7 @@ static int acpi_tad_probe(struct platform_device *pdev) */ device_init_wakeup(dev, true); dev_pm_set_driver_flags(dev, DPM_FLAG_SMART_SUSPEND | - DPM_FLAG_LEAVE_SUSPENDED); + DPM_FLAG_MAY_SKIP_RESUME); /* * The platform bus type layer tells the ACPI PM domain powers up the * device, so set the runtime PM status of it to "active". diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c index 5abca09455ad..81bf71b10d44 100644 --- a/drivers/acpi/apei/ghes.c +++ b/drivers/acpi/apei/ghes.c @@ -168,12 +168,6 @@ int ghes_estatus_pool_init(int num_ghes) if (!addr) goto err_pool_alloc; - /* - * New allocation must be visible in all pgd before it can be found by - * an NMI allocating from the pool. - */ - vmalloc_sync_mappings(); - rc = gen_pool_add(ghes_estatus_pool, addr, PAGE_ALIGN(len), -1); if (rc) goto err_pool_add; diff --git a/drivers/acpi/arm64/gtdt.c b/drivers/acpi/arm64/gtdt.c index 01962c63a711..f2d0e5915dab 100644 --- a/drivers/acpi/arm64/gtdt.c +++ b/drivers/acpi/arm64/gtdt.c @@ -394,7 +394,7 @@ static int __init gtdt_sbsa_gwdt_init(void) */ ret = acpi_gtdt_init(table, &timer_count); if (ret || !timer_count) - return ret; + goto out_put_gtdt; for_each_platform_timer(platform_timer) { if (is_non_secure_watchdog(platform_timer)) { @@ -408,6 +408,8 @@ static int __init gtdt_sbsa_gwdt_init(void) if (gwdt_count) pr_info("found %d SBSA generic Watchdog(s).\n", gwdt_count); +out_put_gtdt: + acpi_put_table(table); return ret; } diff --git a/drivers/acpi/arm64/iort.c b/drivers/acpi/arm64/iort.c index 7d04424189df..28a6b387e80e 100644 --- a/drivers/acpi/arm64/iort.c +++ b/drivers/acpi/arm64/iort.c @@ -299,61 +299,8 @@ out: return status; } -struct iort_workaround_oem_info { - char oem_id[ACPI_OEM_ID_SIZE + 1]; - char oem_table_id[ACPI_OEM_TABLE_ID_SIZE + 1]; - u32 oem_revision; -}; - -static bool apply_id_count_workaround; - -static struct iort_workaround_oem_info wa_info[] __initdata = { - { - .oem_id = "HISI ", - .oem_table_id = "HIP07 ", - .oem_revision = 0, - }, { - .oem_id = "HISI ", - .oem_table_id = "HIP08 ", - .oem_revision = 0, - } -}; - -static void __init -iort_check_id_count_workaround(struct acpi_table_header *tbl) -{ - int i; - - for (i = 0; i < ARRAY_SIZE(wa_info); i++) { - if (!memcmp(wa_info[i].oem_id, tbl->oem_id, ACPI_OEM_ID_SIZE) && - !memcmp(wa_info[i].oem_table_id, tbl->oem_table_id, ACPI_OEM_TABLE_ID_SIZE) && - wa_info[i].oem_revision == tbl->oem_revision) { - apply_id_count_workaround = true; - pr_warn(FW_BUG "ID count for ID mapping entry is wrong, applying workaround\n"); - break; - } - } -} - -static inline u32 iort_get_map_max(struct acpi_iort_id_mapping *map) -{ - u32 map_max = map->input_base + map->id_count; - - /* - * The IORT specification revision D (Section 3, table 4, page 9) says - * Number of IDs = The number of IDs in the range minus one, but the - * IORT code ignored the "minus one", and some firmware did that too, - * so apply a workaround here to keep compatible with both the spec - * compliant and non-spec compliant firmwares. - */ - if (apply_id_count_workaround) - map_max--; - - return map_max; -} - static int iort_id_map(struct acpi_iort_id_mapping *map, u8 type, u32 rid_in, - u32 *rid_out) + u32 *rid_out, bool check_overlap) { /* Single mapping does not care for input id */ if (map->flags & ACPI_IORT_ID_SINGLE_MAPPING) { @@ -368,10 +315,37 @@ static int iort_id_map(struct acpi_iort_id_mapping *map, u8 type, u32 rid_in, return -ENXIO; } - if (rid_in < map->input_base || rid_in > iort_get_map_max(map)) + if (rid_in < map->input_base || + (rid_in > map->input_base + map->id_count)) return -ENXIO; + if (check_overlap) { + /* + * We already found a mapping for this input ID at the end of + * another region. If it coincides with the start of this + * region, we assume the prior match was due to the off-by-1 + * issue mentioned below, and allow it to be superseded. + * Otherwise, things are *really* broken, and we just disregard + * duplicate matches entirely to retain compatibility. + */ + pr_err(FW_BUG "[map %p] conflicting mapping for input ID 0x%x\n", + map, rid_in); + if (rid_in != map->input_base) + return -ENXIO; + + pr_err(FW_BUG "applying workaround.\n"); + } + *rid_out = map->output_base + (rid_in - map->input_base); + + /* + * Due to confusion regarding the meaning of the id_count field (which + * carries the number of IDs *minus 1*), we may have to disregard this + * match if it is at the end of the range, and overlaps with the start + * of another one. + */ + if (map->id_count > 0 && rid_in == map->input_base + map->id_count) + return -EAGAIN; return 0; } @@ -414,6 +388,7 @@ static struct acpi_iort_node *iort_node_get_id(struct acpi_iort_node *node, static int iort_get_id_mapping_index(struct acpi_iort_node *node) { struct acpi_iort_smmu_v3 *smmu; + struct acpi_iort_pmcg *pmcg; switch (node->type) { case ACPI_IORT_NODE_SMMU_V3: @@ -441,6 +416,10 @@ static int iort_get_id_mapping_index(struct acpi_iort_node *node) return smmu->id_mapping_index; case ACPI_IORT_NODE_PMCG: + pmcg = (struct acpi_iort_pmcg *)node->node_data; + if (pmcg->overflow_gsiv || node->mapping_count == 0) + return -EINVAL; + return 0; default: return -EINVAL; @@ -456,7 +435,8 @@ static struct acpi_iort_node *iort_node_map_id(struct acpi_iort_node *node, /* Parse the ID mapping tree to find specified node type */ while (node) { struct acpi_iort_id_mapping *map; - int i, index; + int i, index, rc = 0; + u32 out_ref = 0, map_id = id; if (IORT_TYPE_MASK(node->type) & type_mask) { if (id_out) @@ -490,15 +470,18 @@ static struct acpi_iort_node *iort_node_map_id(struct acpi_iort_node *node, if (i == index) continue; - if (!iort_id_map(map, node->type, id, &id)) + rc = iort_id_map(map, node->type, map_id, &id, out_ref); + if (!rc) break; + if (rc == -EAGAIN) + out_ref = map->output_reference; } - if (i == node->mapping_count) + if (i == node->mapping_count && !out_ref) goto fail_map; node = ACPI_ADD_PTR(struct acpi_iort_node, iort_table, - map->output_reference); + rc ? out_ref : map->output_reference); } fail_map: @@ -789,15 +772,6 @@ void acpi_configure_pmsi_domain(struct device *dev) dev_set_msi_domain(dev, msi_domain); } -static int __maybe_unused __get_pci_rid(struct pci_dev *pdev, u16 alias, - void *data) -{ - u32 *rid = data; - - *rid = alias; - return 0; -} - #ifdef CONFIG_IOMMU_API static struct acpi_iort_node *iort_get_msi_resv_iommu(struct device *dev) { @@ -1148,13 +1122,10 @@ void iort_dma_setup(struct device *dev, u64 *dma_addr, u64 *dma_size) else size = 1ULL << 32; - if (dev_is_pci(dev)) { - ret = acpi_dma_get_range(dev, &dmaaddr, &offset, &size); - if (ret == -ENODEV) - ret = rc_dma_get_range(dev, &size); - } else { - ret = nc_dma_get_range(dev, &size); - } + ret = acpi_dma_get_range(dev, &dmaaddr, &offset, &size); + if (ret == -ENODEV) + ret = dev_is_pci(dev) ? rc_dma_get_range(dev, &size) + : nc_dma_get_range(dev, &size); if (!ret) { /* @@ -1692,6 +1663,10 @@ void __init acpi_iort_init(void) { acpi_status status; + /* iort_table will be used at runtime after the iort init, + * so we don't need to call acpi_put_table() to release + * the IORT table mapping. + */ status = acpi_get_table(ACPI_SIG_IORT, 0, &iort_table); if (ACPI_FAILURE(status)) { if (status != AE_NOT_FOUND) { @@ -1703,6 +1678,5 @@ void __init acpi_iort_init(void) return; } - iort_check_id_count_workaround(iort_table); iort_init_platform_devices(); } diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c index 5832bc10aca8..b44b12a931e7 100644 --- a/drivers/acpi/device_pm.c +++ b/drivers/acpi/device_pm.c @@ -1084,7 +1084,7 @@ int acpi_subsys_suspend_late(struct device *dev) { int ret; - if (dev_pm_smart_suspend_and_suspended(dev)) + if (dev_pm_skip_suspend(dev)) return 0; ret = pm_generic_suspend_late(dev); @@ -1100,10 +1100,8 @@ int acpi_subsys_suspend_noirq(struct device *dev) { int ret; - if (dev_pm_smart_suspend_and_suspended(dev)) { - dev->power.may_skip_resume = true; + if (dev_pm_skip_suspend(dev)) return 0; - } ret = pm_generic_suspend_noirq(dev); if (ret) @@ -1116,8 +1114,8 @@ int acpi_subsys_suspend_noirq(struct device *dev) * acpi_subsys_complete() to take care of fixing up the device's state * anyway, if need be. */ - dev->power.may_skip_resume = device_may_wakeup(dev) || - !device_can_wakeup(dev); + if (device_can_wakeup(dev) && !device_may_wakeup(dev)) + dev->power.may_skip_resume = false; return 0; } @@ -1129,17 +1127,9 @@ EXPORT_SYMBOL_GPL(acpi_subsys_suspend_noirq); */ static int acpi_subsys_resume_noirq(struct device *dev) { - if (dev_pm_may_skip_resume(dev)) + if (dev_pm_skip_resume(dev)) return 0; - /* - * Devices with DPM_FLAG_SMART_SUSPEND may be left in runtime suspend - * during system suspend, so update their runtime PM status to "active" - * as they will be put into D0 going forward. - */ - if (dev_pm_smart_suspend_and_suspended(dev)) - pm_runtime_set_active(dev); - return pm_generic_resume_noirq(dev); } @@ -1153,7 +1143,12 @@ static int acpi_subsys_resume_noirq(struct device *dev) */ static int acpi_subsys_resume_early(struct device *dev) { - int ret = acpi_dev_resume(dev); + int ret; + + if (dev_pm_skip_resume(dev)) + return 0; + + ret = acpi_dev_resume(dev); return ret ? ret : pm_generic_resume_early(dev); } @@ -1218,7 +1213,7 @@ static int acpi_subsys_poweroff_late(struct device *dev) { int ret; - if (dev_pm_smart_suspend_and_suspended(dev)) + if (dev_pm_skip_suspend(dev)) return 0; ret = pm_generic_poweroff_late(dev); @@ -1234,7 +1229,7 @@ static int acpi_subsys_poweroff_late(struct device *dev) */ static int acpi_subsys_poweroff_noirq(struct device *dev) { - if (dev_pm_smart_suspend_and_suspended(dev)) + if (dev_pm_skip_suspend(dev)) return 0; return pm_generic_poweroff_noirq(dev); diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index 8f467d929f4b..04ce2b96c3da 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -2020,7 +2020,7 @@ bool acpi_ec_dispatch_gpe(void) */ ret = acpi_dispatch_gpe(NULL, first_ec->gpe); if (ret == ACPI_INTERRUPT_HANDLED) { - pm_pr_dbg("EC GPE dispatched\n"); + pm_pr_dbg("ACPI EC GPE dispatched\n"); /* Flush the event and query workqueues. */ acpi_ec_flush_work(); diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c index 2a0e1c04e312..aff13bf4d947 100644 --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -992,23 +992,31 @@ static bool acpi_s2idle_wake(void) * wakeup is pending anyway and the SCI is not the source of * it). */ - if (irqd_is_wakeup_armed(irq_get_irq_data(acpi_sci_irq))) + if (irqd_is_wakeup_armed(irq_get_irq_data(acpi_sci_irq))) { + pm_pr_dbg("Wakeup unrelated to ACPI SCI\n"); return true; + } /* * If the status bit of any enabled fixed event is set, the * wakeup is regarded as valid. */ - if (acpi_any_fixed_event_status_set()) + if (acpi_any_fixed_event_status_set()) { + pm_pr_dbg("ACPI fixed event wakeup\n"); return true; + } /* Check wakeups from drivers sharing the SCI. */ - if (acpi_check_wakeup_handlers()) + if (acpi_check_wakeup_handlers()) { + pm_pr_dbg("ACPI custom handler wakeup\n"); return true; + } /* Check non-EC GPE wakeups and dispatch the EC GPE. */ - if (acpi_ec_dispatch_gpe()) + if (acpi_ec_dispatch_gpe()) { + pm_pr_dbg("ACPI non-EC GPE wakeup\n"); return true; + } /* * Cancel the SCI wakeup and process all pending events in case @@ -1027,8 +1035,10 @@ static bool acpi_s2idle_wake(void) * are pending here, they must be resulting from the processing * of EC events above or coming from somewhere else. */ - if (pm_wakeup_pending()) + if (pm_wakeup_pending()) { + pm_pr_dbg("Wakeup after ACPI Notify sync\n"); return true; + } rearm_wake_irq(acpi_sci_irq); } |