diff options
198 files changed, 2011 insertions, 982 deletions
diff --git a/Documentation/devicetree/bindings/arm/arch_timer.txt b/Documentation/devicetree/bindings/arm/arch_timer.txt index 06fc7602593a..37b2cafa4e52 100644 --- a/Documentation/devicetree/bindings/arm/arch_timer.txt +++ b/Documentation/devicetree/bindings/arm/arch_timer.txt @@ -19,6 +19,9 @@ to deliver its interrupts via SPIs. - clock-frequency : The frequency of the main counter, in Hz. Optional. +- always-on : a boolean property. If present, the timer is powered through an + always-on power domain, therefore it never loses context. + Example: timer { diff --git a/Documentation/devicetree/bindings/ata/apm-xgene.txt b/Documentation/devicetree/bindings/ata/apm-xgene.txt index 7bcfbf59810e..a668f0e7d001 100644 --- a/Documentation/devicetree/bindings/ata/apm-xgene.txt +++ b/Documentation/devicetree/bindings/ata/apm-xgene.txt @@ -24,6 +24,7 @@ Required properties: * "sata-phy" for the SATA 6.0Gbps PHY Optional properties: +- dma-coherent : Present if dma operations are coherent - status : Shall be "ok" if enabled or "disabled" if disabled. Default is "ok". @@ -55,6 +56,7 @@ Example: <0x0 0x1f22e000 0x0 0x1000>, <0x0 0x1f227000 0x0 0x1000>; interrupts = <0x0 0x87 0x4>; + dma-coherent; status = "ok"; clocks = <&sataclk 0>; phys = <&phy2 0>; @@ -69,6 +71,7 @@ Example: <0x0 0x1f23e000 0x0 0x1000>, <0x0 0x1f237000 0x0 0x1000>; interrupts = <0x0 0x88 0x4>; + dma-coherent; status = "ok"; clocks = <&sataclk 0>; phys = <&phy3 0>; diff --git a/Documentation/devicetree/bindings/net/socfpga-dwmac.txt b/Documentation/devicetree/bindings/net/socfpga-dwmac.txt index 636f0ac4e223..2a60cd3e8d5d 100644 --- a/Documentation/devicetree/bindings/net/socfpga-dwmac.txt +++ b/Documentation/devicetree/bindings/net/socfpga-dwmac.txt @@ -23,5 +23,5 @@ gmac0: ethernet@ff700000 { interrupt-names = "macirq"; mac-address = [00 00 00 00 00 00];/* Filled in by U-Boot */ clocks = <&emac_0_clk>; - clocks-names = "stmmaceth"; + clock-names = "stmmaceth"; }; diff --git a/Documentation/devicetree/bindings/net/stmmac.txt b/Documentation/devicetree/bindings/net/stmmac.txt index 80c1fb8bfbb8..a2acd2b26baf 100644 --- a/Documentation/devicetree/bindings/net/stmmac.txt +++ b/Documentation/devicetree/bindings/net/stmmac.txt @@ -33,7 +33,7 @@ Optional properties: - max-frame-size: See ethernet.txt file in the same directory - clocks: If present, the first clock should be the GMAC main clock, further clocks may be specified in derived bindings. -- clocks-names: One name for each entry in the clocks property, the +- clock-names: One name for each entry in the clocks property, the first one should be "stmmaceth". Examples: diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-st.txt b/Documentation/devicetree/bindings/pinctrl/pinctrl-st.txt index 4bd5be0e5e7d..26bcb18f4e60 100644 --- a/Documentation/devicetree/bindings/pinctrl/pinctrl-st.txt +++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-st.txt @@ -83,7 +83,7 @@ Example: reg = <0xfe61f080 0x4>; reg-names = "irqmux"; interrupts = <GIC_SPI 180 IRQ_TYPE_LEVEL_HIGH>; - interrupts-names = "irqmux"; + interrupt-names = "irqmux"; ranges = <0 0xfe610000 0x5000>; PIO0: gpio@fe610000 { @@ -165,7 +165,7 @@ sdhci0:sdhci@fe810000{ interrupt-parent = <&PIO3>; #interrupt-cells = <2>; interrupts = <3 IRQ_TYPE_LEVEL_HIGH>; /* Interrupt line via PIO3-3 */ - interrupts-names = "card-detect"; + interrupt-names = "card-detect"; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_mmc>; }; diff --git a/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt b/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt index 569b26c4a81e..60ca07996458 100644 --- a/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt +++ b/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt @@ -47,7 +47,7 @@ mcasp0: mcasp0@1d00000 { reg = <0x100000 0x3000>; reg-names "mpu"; interrupts = <82>, <83>; - interrupts-names = "tx", "rx"; + interrupt-names = "tx", "rx"; op-mode = <0>; /* MCASP_IIS_MODE */ tdm-slots = <2>; serial-dir = < diff --git a/Documentation/devicetree/bindings/sound/tlv320aic31xx.txt b/Documentation/devicetree/bindings/sound/tlv320aic31xx.txt index 74c66dee3e14..eff12be5e789 100644 --- a/Documentation/devicetree/bindings/sound/tlv320aic31xx.txt +++ b/Documentation/devicetree/bindings/sound/tlv320aic31xx.txt @@ -13,6 +13,9 @@ Required properties: "ti,tlv320aic3111" - TLV320AIC3111 (stereo speaker amp, MiniDSP) - reg - <int> - I2C slave address +- HPVDD-supply, SPRVDD-supply, SPLVDD-supply, AVDD-supply, IOVDD-supply, + DVDD-supply : power supplies for the device as covered in + Documentation/devicetree/bindings/regulator/regulator.txt Optional properties: @@ -24,9 +27,6 @@ Optional properties: 3 or MICBIAS_AVDD - MICBIAS output is connected to AVDD If this node is not mentioned or if the value is unknown, then micbias is set to 2.0V. -- HPVDD-supply, SPRVDD-supply, SPLVDD-supply, AVDD-supply, IOVDD-supply, - DVDD-supply : power supplies for the device as covered in - Documentation/devicetree/bindings/regulator/regulator.txt CODEC output pins: * HPL diff --git a/MAINTAINERS b/MAINTAINERS index e67ea2442041..181f43077a03 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -3485,6 +3485,12 @@ S: Maintained F: drivers/extcon/ F: Documentation/extcon/ +EXYNOS DP DRIVER +M: Jingoo Han <jg1.han@samsung.com> +L: dri-devel@lists.freedesktop.org +S: Maintained +F: drivers/gpu/drm/exynos/exynos_dp* + EXYNOS MIPI DISPLAY DRIVERS M: Inki Dae <inki.dae@samsung.com> M: Donghwa Lee <dh09.lee@samsung.com> @@ -3550,7 +3556,7 @@ F: include/scsi/libfcoe.h F: include/uapi/scsi/fc/ FILE LOCKING (flock() and fcntl()/lockf()) -M: Jeff Layton <jlayton@redhat.com> +M: Jeff Layton <jlayton@poochiereds.net> M: J. Bruce Fields <bfields@fieldses.org> L: linux-fsdevel@vger.kernel.org S: Maintained @@ -5108,14 +5114,19 @@ F: drivers/s390/kvm/ KERNEL VIRTUAL MACHINE (KVM) FOR ARM M: Christoffer Dall <christoffer.dall@linaro.org> +M: Marc Zyngier <marc.zyngier@arm.com> +L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) L: kvmarm@lists.cs.columbia.edu W: http://systems.cs.columbia.edu/projects/kvm-arm S: Supported F: arch/arm/include/uapi/asm/kvm* F: arch/arm/include/asm/kvm* F: arch/arm/kvm/ +F: virt/kvm/arm/ +F: include/kvm/arm_* KERNEL VIRTUAL MACHINE FOR ARM64 (KVM/arm64) +M: Christoffer Dall <christoffer.dall@linaro.org> M: Marc Zyngier <marc.zyngier@arm.com> L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) L: kvmarm@lists.cs.columbia.edu @@ -7293,7 +7304,7 @@ F: Documentation/blockdev/ramdisk.txt F: drivers/block/brd.c RANDOM NUMBER DRIVER -M: Theodore Ts'o" <tytso@mit.edu> +M: "Theodore Ts'o" <tytso@mit.edu> S: Maintained F: drivers/char/random.c @@ -1,7 +1,7 @@ VERSION = 3 PATCHLEVEL = 15 SUBLEVEL = 0 -EXTRAVERSION = -rc3 +EXTRAVERSION = -rc4 NAME = Shuffling Zombie Juror # *DOCUMENTATION* diff --git a/arch/arc/kernel/entry.S b/arch/arc/kernel/entry.S index 819dd5f7eb05..29b82adbf0b4 100644 --- a/arch/arc/kernel/entry.S +++ b/arch/arc/kernel/entry.S @@ -614,11 +614,13 @@ resume_user_mode_begin: resume_kernel_mode: -#ifdef CONFIG_PREEMPT - - ; This is a must for preempt_schedule_irq() + ; Disable Interrupts from this point on + ; CONFIG_PREEMPT: This is a must for preempt_schedule_irq() + ; !CONFIG_PREEMPT: To ensure restore_regs is intr safe IRQ_DISABLE r9 +#ifdef CONFIG_PREEMPT + ; Can't preempt if preemption disabled GET_CURR_THR_INFO_FROM_SP r10 ld r8, [r10, THREAD_INFO_PREEMPT_COUNT] diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi index 07f283c20eb1..cb6811e5ae5a 100644 --- a/arch/arm/boot/dts/am33xx.dtsi +++ b/arch/arm/boot/dts/am33xx.dtsi @@ -802,7 +802,7 @@ <0x46000000 0x400000>; reg-names = "mpu", "dat"; interrupts = <80>, <81>; - interrupts-names = "tx", "rx"; + interrupt-names = "tx", "rx"; status = "disabled"; dmas = <&edma 8>, <&edma 9>; @@ -816,7 +816,7 @@ <0x46400000 0x400000>; reg-names = "mpu", "dat"; interrupts = <82>, <83>; - interrupts-names = "tx", "rx"; + interrupt-names = "tx", "rx"; status = "disabled"; dmas = <&edma 10>, <&edma 11>; diff --git a/arch/arm/boot/dts/am4372.dtsi b/arch/arm/boot/dts/am4372.dtsi index 36d523a26831..d1f8707ff1df 100644 --- a/arch/arm/boot/dts/am4372.dtsi +++ b/arch/arm/boot/dts/am4372.dtsi @@ -691,7 +691,7 @@ <0x46000000 0x400000>; reg-names = "mpu", "dat"; interrupts = <80>, <81>; - interrupts-names = "tx", "rx"; + interrupt-names = "tx", "rx"; status = "disabled"; dmas = <&edma 8>, <&edma 9>; @@ -705,7 +705,7 @@ <0x46400000 0x400000>; reg-names = "mpu", "dat"; interrupts = <82>, <83>; - interrupts-names = "tx", "rx"; + interrupt-names = "tx", "rx"; status = "disabled"; dmas = <&edma 10>, <&edma 11>; diff --git a/arch/arm/boot/dts/stih415-pinctrl.dtsi b/arch/arm/boot/dts/stih415-pinctrl.dtsi index f09fb10a3791..81df870e5ee6 100644 --- a/arch/arm/boot/dts/stih415-pinctrl.dtsi +++ b/arch/arm/boot/dts/stih415-pinctrl.dtsi @@ -49,7 +49,7 @@ reg = <0xfe61f080 0x4>; reg-names = "irqmux"; interrupts = <GIC_SPI 180 IRQ_TYPE_LEVEL_HIGH>; - interrupts-names = "irqmux"; + interrupt-names = "irqmux"; ranges = <0 0xfe610000 0x5000>; PIO0: gpio@fe610000 { @@ -187,7 +187,7 @@ reg = <0xfee0f080 0x4>; reg-names = "irqmux"; interrupts = <GIC_SPI 181 IRQ_TYPE_LEVEL_HIGH>; - interrupts-names = "irqmux"; + interrupt-names = "irqmux"; ranges = <0 0xfee00000 0x8000>; PIO5: gpio@fee00000 { @@ -282,7 +282,7 @@ reg = <0xfe82f080 0x4>; reg-names = "irqmux"; interrupts = <GIC_SPI 182 IRQ_TYPE_LEVEL_HIGH>; - interrupts-names = "irqmux"; + interrupt-names = "irqmux"; ranges = <0 0xfe820000 0x8000>; PIO13: gpio@fe820000 { @@ -423,7 +423,7 @@ reg = <0xfd6bf080 0x4>; reg-names = "irqmux"; interrupts = <GIC_SPI 113 IRQ_TYPE_LEVEL_HIGH>; - interrupts-names = "irqmux"; + interrupt-names = "irqmux"; ranges = <0 0xfd6b0000 0x3000>; PIO100: gpio@fd6b0000 { @@ -460,7 +460,7 @@ reg = <0xfd33f080 0x4>; reg-names = "irqmux"; interrupts = <GIC_SPI 114 IRQ_TYPE_LEVEL_HIGH>; - interrupts-names = "irqmux"; + interrupt-names = "irqmux"; ranges = <0 0xfd330000 0x5000>; PIO103: gpio@fd330000 { diff --git a/arch/arm/boot/dts/stih416-pinctrl.dtsi b/arch/arm/boot/dts/stih416-pinctrl.dtsi index aeea304086eb..250d5ecc951e 100644 --- a/arch/arm/boot/dts/stih416-pinctrl.dtsi +++ b/arch/arm/boot/dts/stih416-pinctrl.dtsi @@ -53,7 +53,7 @@ reg = <0xfe61f080 0x4>; reg-names = "irqmux"; interrupts = <GIC_SPI 182 IRQ_TYPE_LEVEL_HIGH>; - interrupts-names = "irqmux"; + interrupt-names = "irqmux"; ranges = <0 0xfe610000 0x6000>; PIO0: gpio@fe610000 { @@ -201,7 +201,7 @@ reg = <0xfee0f080 0x4>; reg-names = "irqmux"; interrupts = <GIC_SPI 183 IRQ_TYPE_LEVEL_HIGH>; - interrupts-names = "irqmux"; + interrupt-names = "irqmux"; ranges = <0 0xfee00000 0x10000>; PIO5: gpio@fee00000 { @@ -333,7 +333,7 @@ reg = <0xfe82f080 0x4>; reg-names = "irqmux"; interrupts = <GIC_SPI 184 IRQ_TYPE_LEVEL_HIGH>; - interrupts-names = "irqmux"; + interrupt-names = "irqmux"; ranges = <0 0xfe820000 0x6000>; PIO13: gpio@fe820000 { @@ -461,7 +461,7 @@ reg = <0xfd6bf080 0x4>; reg-names = "irqmux"; interrupts = <GIC_SPI 113 IRQ_TYPE_LEVEL_HIGH>; - interrupts-names = "irqmux"; + interrupt-names = "irqmux"; ranges = <0 0xfd6b0000 0x3000>; PIO100: gpio@fd6b0000 { @@ -498,7 +498,7 @@ reg = <0xfd33f080 0x4>; reg-names = "irqmux"; interrupts = <GIC_SPI 114 IRQ_TYPE_LEVEL_HIGH>; - interrupts-names = "irqmux"; + interrupt-names = "irqmux"; ranges = <0 0xfd330000 0x5000>; PIO103: gpio@fd330000 { diff --git a/arch/arm/kvm/Kconfig b/arch/arm/kvm/Kconfig index 466bd299b1a8..4be5bb150bdd 100644 --- a/arch/arm/kvm/Kconfig +++ b/arch/arm/kvm/Kconfig @@ -23,7 +23,7 @@ config KVM select HAVE_KVM_CPU_RELAX_INTERCEPT select KVM_MMIO select KVM_ARM_HOST - depends on ARM_VIRT_EXT && ARM_LPAE + depends on ARM_VIRT_EXT && ARM_LPAE && !CPU_BIG_ENDIAN ---help--- Support hosting virtualized guest machines. You will also need to select one or more of the processor modules below. diff --git a/arch/arm/kvm/mmu.c b/arch/arm/kvm/mmu.c index 80bb1e6c2c29..16f804938b8f 100644 --- a/arch/arm/kvm/mmu.c +++ b/arch/arm/kvm/mmu.c @@ -42,6 +42,8 @@ static unsigned long hyp_idmap_start; static unsigned long hyp_idmap_end; static phys_addr_t hyp_idmap_vector; +#define pgd_order get_order(PTRS_PER_PGD * sizeof(pgd_t)) + #define kvm_pmd_huge(_x) (pmd_huge(_x) || pmd_trans_huge(_x)) static void kvm_tlb_flush_vmid_ipa(struct kvm *kvm, phys_addr_t ipa) @@ -293,14 +295,14 @@ void free_boot_hyp_pgd(void) if (boot_hyp_pgd) { unmap_range(NULL, boot_hyp_pgd, hyp_idmap_start, PAGE_SIZE); unmap_range(NULL, boot_hyp_pgd, TRAMPOLINE_VA, PAGE_SIZE); - kfree(boot_hyp_pgd); + free_pages((unsigned long)boot_hyp_pgd, pgd_order); boot_hyp_pgd = NULL; } if (hyp_pgd) unmap_range(NULL, hyp_pgd, TRAMPOLINE_VA, PAGE_SIZE); - kfree(init_bounce_page); + free_page((unsigned long)init_bounce_page); init_bounce_page = NULL; mutex_unlock(&kvm_hyp_pgd_mutex); @@ -330,7 +332,7 @@ void free_hyp_pgds(void) for (addr = VMALLOC_START; is_vmalloc_addr((void*)addr); addr += PGDIR_SIZE) unmap_range(NULL, hyp_pgd, KERN_TO_HYP(addr), PGDIR_SIZE); - kfree(hyp_pgd); + free_pages((unsigned long)hyp_pgd, pgd_order); hyp_pgd = NULL; } @@ -1024,7 +1026,7 @@ int kvm_mmu_init(void) size_t len = __hyp_idmap_text_end - __hyp_idmap_text_start; phys_addr_t phys_base; - init_bounce_page = kmalloc(PAGE_SIZE, GFP_KERNEL); + init_bounce_page = (void *)__get_free_page(GFP_KERNEL); if (!init_bounce_page) { kvm_err("Couldn't allocate HYP init bounce page\n"); err = -ENOMEM; @@ -1050,8 +1052,9 @@ int kvm_mmu_init(void) (unsigned long)phys_base); } - hyp_pgd = kzalloc(PTRS_PER_PGD * sizeof(pgd_t), GFP_KERNEL); - boot_hyp_pgd = kzalloc(PTRS_PER_PGD * sizeof(pgd_t), GFP_KERNEL); + hyp_pgd = (pgd_t *)__get_free_pages(GFP_KERNEL | __GFP_ZERO, pgd_order); + boot_hyp_pgd = (pgd_t *)__get_free_pages(GFP_KERNEL | __GFP_ZERO, pgd_order); + if (!hyp_pgd || !boot_hyp_pgd) { kvm_err("Hyp mode PGD not allocated\n"); err = -ENOMEM; diff --git a/arch/arm64/boot/dts/apm-storm.dtsi b/arch/arm64/boot/dts/apm-storm.dtsi index 93f4b2dd9248..f8c40a66e65d 100644 --- a/arch/arm64/boot/dts/apm-storm.dtsi +++ b/arch/arm64/boot/dts/apm-storm.dtsi @@ -307,6 +307,7 @@ <0x0 0x1f21e000 0x0 0x1000>, <0x0 0x1f217000 0x0 0x1000>; interrupts = <0x0 0x86 0x4>; + dma-coherent; status = "disabled"; clocks = <&sata01clk 0>; phys = <&phy1 0>; @@ -321,6 +322,7 @@ <0x0 0x1f22e000 0x0 0x1000>, <0x0 0x1f227000 0x0 0x1000>; interrupts = <0x0 0x87 0x4>; + dma-coherent; status = "ok"; clocks = <&sata23clk 0>; phys = <&phy2 0>; @@ -334,6 +336,7 @@ <0x0 0x1f23d000 0x0 0x1000>, <0x0 0x1f23e000 0x0 0x1000>; interrupts = <0x0 0x88 0x4>; + dma-coherent; status = "ok"; clocks = <&sata45clk 0>; phys = <&phy3 0>; diff --git a/arch/arm64/kernel/early_printk.c b/arch/arm64/kernel/early_printk.c index ffbbdde7aba1..2dc36d00addf 100644 --- a/arch/arm64/kernel/early_printk.c +++ b/arch/arm64/kernel/early_printk.c @@ -143,10 +143,8 @@ static int __init setup_early_printk(char *buf) } /* no options parsing yet */ - if (paddr) { - set_fixmap_io(FIX_EARLYCON_MEM_BASE, paddr); - early_base = (void __iomem *)fix_to_virt(FIX_EARLYCON_MEM_BASE); - } + if (paddr) + early_base = (void __iomem *)set_fixmap_offset_io(FIX_EARLYCON_MEM_BASE, paddr); printch = match->printch; early_console = &early_console_dev; diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c index 93e7df8968fe..7ec784653b29 100644 --- a/arch/arm64/kernel/setup.c +++ b/arch/arm64/kernel/setup.c @@ -396,7 +396,7 @@ static int __init arm64_device_init(void) of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); return 0; } -arch_initcall(arm64_device_init); +arch_initcall_sync(arm64_device_init); static DEFINE_PER_CPU(struct cpu, cpu_data); diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c index 0ba347e59f06..c851eb44dc50 100644 --- a/arch/arm64/mm/dma-mapping.c +++ b/arch/arm64/mm/dma-mapping.c @@ -22,8 +22,11 @@ #include <linux/slab.h> #include <linux/dma-mapping.h> #include <linux/dma-contiguous.h> +#include <linux/of.h> +#include <linux/platform_device.h> #include <linux/vmalloc.h> #include <linux/swiotlb.h> +#include <linux/amba/bus.h> #include <asm/cacheflush.h> @@ -305,17 +308,45 @@ struct dma_map_ops coherent_swiotlb_dma_ops = { }; EXPORT_SYMBOL(coherent_swiotlb_dma_ops); +static int dma_bus_notifier(struct notifier_block *nb, + unsigned long event, void *_dev) +{ + struct device *dev = _dev; + + if (event != BUS_NOTIFY_ADD_DEVICE) + return NOTIFY_DONE; + + if (of_property_read_bool(dev->of_node, "dma-coherent")) + set_dma_ops(dev, &coherent_swiotlb_dma_ops); + + return NOTIFY_OK; +} + +static struct notifier_block platform_bus_nb = { + .notifier_call = dma_bus_notifier, +}; + +static struct notifier_block amba_bus_nb = { + .notifier_call = dma_bus_notifier, +}; + extern int swiotlb_late_init_with_default_size(size_t default_size); static int __init swiotlb_late_init(void) { size_t swiotlb_size = min(SZ_64M, MAX_ORDER_NR_PAGES << PAGE_SHIFT); - dma_ops = &coherent_swiotlb_dma_ops; + /* + * These must be registered before of_platform_populate(). + */ + bus_register_notifier(&platform_bus_type, &platform_bus_nb); + bus_register_notifier(&amba_bustype, &amba_bus_nb); + + dma_ops = &noncoherent_swiotlb_dma_ops; return swiotlb_late_init_with_default_size(swiotlb_size); } -subsys_initcall(swiotlb_late_init); +arch_initcall(swiotlb_late_init); #define PREALLOC_DMA_DEBUG_ENTRIES 4096 diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c index 6b7e89569a3a..0a472c41a67f 100644 --- a/arch/arm64/mm/mmu.c +++ b/arch/arm64/mm/mmu.c @@ -374,6 +374,9 @@ int kern_addr_valid(unsigned long addr) if (pmd_none(*pmd)) return 0; + if (pmd_sect(*pmd)) + return pfn_valid(pmd_pfn(*pmd)); + pte = pte_offset_kernel(pmd, addr); if (pte_none(*pte)) return 0; diff --git a/arch/hexagon/include/asm/barrier.h b/arch/hexagon/include/asm/barrier.h deleted file mode 100644 index 4e863daea25b..000000000000 --- a/arch/hexagon/include/asm/barrier.h +++ /dev/null @@ -1,37 +0,0 @@ -/* - * Memory barrier definitions for the Hexagon architecture - * - * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 and - * only version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - */ - -#ifndef _ASM_BARRIER_H -#define _ASM_BARRIER_H - -#define rmb() barrier() -#define read_barrier_depends() barrier() -#define wmb() barrier() -#define mb() barrier() -#define smp_rmb() barrier() -#define smp_read_barrier_depends() barrier() -#define smp_wmb() barrier() -#define smp_mb() barrier() - -/* Set a value and use a memory barrier. Used by the scheduler somewhere. */ -#define set_mb(var, value) \ - do { var = value; mb(); } while (0) - -#endif /* _ASM_BARRIER_H */ diff --git a/arch/parisc/include/uapi/asm/Kbuild b/arch/parisc/include/uapi/asm/Kbuild index a580642555b6..348356c99514 100644 --- a/arch/parisc/include/uapi/asm/Kbuild +++ b/arch/parisc/include/uapi/asm/Kbuild @@ -1,6 +1,8 @@ # UAPI Header export list include include/uapi/asm-generic/Kbuild.asm +generic-y += resource.h + header-y += bitsperlong.h header-y += byteorder.h header-y += errno.h @@ -13,7 +15,6 @@ header-y += msgbuf.h header-y += pdc.h header-y += posix_types.h header-y += ptrace.h -header-y += resource.h header-y += sembuf.h header-y += setup.h header-y += shmbuf.h diff --git a/arch/parisc/include/uapi/asm/resource.h b/arch/parisc/include/uapi/asm/resource.h deleted file mode 100644 index 8b06343b62ed..000000000000 --- a/arch/parisc/include/uapi/asm/resource.h +++ /dev/null @@ -1,7 +0,0 @@ -#ifndef _ASM_PARISC_RESOURCE_H -#define _ASM_PARISC_RESOURCE_H - -#define _STK_LIM_MAX 10 * _STK_LIM -#include <asm-generic/resource.h> - -#endif diff --git a/arch/powerpc/boot/main.c b/arch/powerpc/boot/main.c index a28f02165e97..d367a0aece2a 100644 --- a/arch/powerpc/boot/main.c +++ b/arch/powerpc/boot/main.c @@ -139,18 +139,18 @@ static struct addr_range prep_initrd(struct addr_range vmlinux, void *chosen, * edit the command line passed to vmlinux (by setting /chosen/bootargs). * The buffer is put in it's own section so that tools may locate it easier. */ -static char cmdline[COMMAND_LINE_SIZE] +static char cmdline[BOOT_COMMAND_LINE_SIZE] __attribute__((__section__("__builtin_cmdline"))); static void prep_cmdline(void *chosen) { if (cmdline[0] == '\0') - getprop(chosen, "bootargs", cmdline, COMMAND_LINE_SIZE-1); + getprop(chosen, "bootargs", cmdline, BOOT_COMMAND_LINE_SIZE-1); printf("\n\rLinux/PowerPC load: %s", cmdline); /* If possible, edit the command line */ if (console_ops.edit_cmdline) - console_ops.edit_cmdline(cmdline, COMMAND_LINE_SIZE); + console_ops.edit_cmdline(cmdline, BOOT_COMMAND_LINE_SIZE); printf("\n\r"); /* Put the command line back into the devtree for the kernel */ @@ -174,7 +174,7 @@ void start(void) * built-in command line wasn't set by an external tool */ if ((loader_info.cmdline_len > 0) && (cmdline[0] == '\0')) memmove(cmdline, loader_info.cmdline, - min(loader_info.cmdline_len, COMMAND_LINE_SIZE-1)); + min(loader_info.cmdline_len, BOOT_COMMAND_LINE_SIZE-1)); if (console_ops.open && (console_ops.open() < 0)) exit(); diff --git a/arch/powerpc/boot/ops.h b/arch/powerpc/boot/ops.h index b3218ce451bb..8aad3c55aeda 100644 --- a/arch/powerpc/boot/ops.h +++ b/arch/powerpc/boot/ops.h @@ -15,7 +15,7 @@ #include "types.h" #include "string.h" -#define COMMAND_LINE_SIZE 512 +#define BOOT_COMMAND_LINE_SIZE 2048 #define MAX_PATH_LEN 256 #define MAX_PROP_LEN 256 /* What should this be? */ diff --git a/arch/powerpc/boot/ps3.c b/arch/powerpc/boot/ps3.c index 9954d98871d0..4ec2d86d3c50 100644 --- a/arch/powerpc/boot/ps3.c +++ b/arch/powerpc/boot/ps3.c @@ -47,13 +47,13 @@ BSS_STACK(4096); * The buffer is put in it's own section so that tools may locate it easier. */ -static char cmdline[COMMAND_LINE_SIZE] +static char cmdline[BOOT_COMMAND_LINE_SIZE] __attribute__((__section__("__builtin_cmdline"))); static void prep_cmdline(void *chosen) { if (cmdline[0] == '\0') - getprop(chosen, "bootargs", cmdline, COMMAND_LINE_SIZE-1); + getprop(chosen, "bootargs", cmdline, BOOT_COMMAND_LINE_SIZE-1); else setprop_str(chosen, "bootargs", cmdline); diff --git a/arch/powerpc/include/asm/opal.h b/arch/powerpc/include/asm/opal.h index a2efdaa020b0..66ad7a74116f 100644 --- a/arch/powerpc/include/asm/opal.h +++ b/arch/powerpc/include/asm/opal.h @@ -41,14 +41,14 @@ struct opal_takeover_args { * size except the last one in the list to be as well. */ struct opal_sg_entry { - void *data; - long length; + __be64 data; + __be64 length; }; -/* sg list */ +/* SG list */ struct opal_sg_list { - unsigned long num_entries; - struct opal_sg_list *next; + __be64 length; + __be64 next; struct opal_sg_entry entry[]; }; @@ -858,8 +858,8 @@ int64_t opal_lpc_write(uint32_t chip_id, enum OpalLPCAddressType addr_type, int64_t opal_lpc_read(uint32_t chip_id, enum OpalLPCAddressType addr_type, uint32_t addr, __be32 *data, uint32_t sz); -int64_t opal_read_elog(uint64_t buffer, size_t size, uint64_t log_id); -int64_t opal_get_elog_size(uint64_t *log_id, size_t *size, uint64_t *elog_type); +int64_t opal_read_elog(uint64_t buffer, uint64_t size, uint64_t log_id); +int64_t opal_get_elog_size(__be64 *log_id, __be64 *size, __be64 *elog_type); int64_t opal_write_elog(uint64_t buffer, uint64_t size, uint64_t offset); int64_t opal_send_ack_elog(uint64_t log_id); void opal_resend_pending_logs(void); @@ -868,23 +868,24 @@ int64_t opal_validate_flash(uint64_t buffer, uint32_t *size, uint32_t *result); int64_t opal_manage_flash(uint8_t op); int64_t opal_update_flash(uint64_t blk_list); int64_t opal_dump_init(uint8_t dump_type); -int64_t opal_dump_info(uint32_t *dump_id, uint32_t *dump_size); -int64_t opal_dump_info2(uint32_t *dump_id, uint32_t *dump_size, uint32_t *dump_type); +int64_t opal_dump_info(__be32 *dump_id, __be32 *dump_size); +int64_t opal_dump_info2(__be32 *dump_id, __be32 *dump_size, __be32 *dump_type); int64_t opal_dump_read(uint32_t dump_id, uint64_t buffer); int64_t opal_dump_ack(uint32_t dump_id); int64_t opal_dump_resend_notification(void); -int64_t opal_get_msg(uint64_t buffer, size_t size); -int64_t opal_check_completion(uint64_t buffer, size_t size, uint64_t token); +int64_t opal_get_msg(uint64_t buffer, uint64_t size); +int64_t opal_check_completion(uint64_t buffer, uint64_t size, uint64_t token); int64_t opal_sync_host_reboot(void); int64_t opal_get_param(uint64_t token, uint32_t param_id, uint64_t buffer, - size_t length); + uint64_t length); int64_t opal_set_param(uint64_t token, uint32_t param_id, uint64_t buffer, - size_t length); + uint64_t length); int64_t opal_sensor_read(uint32_t sensor_hndl, int token, __be32 *sensor_data); /* Internal functions */ -extern int early_init_dt_scan_opal(unsigned long node, const char *uname, int depth, void *data); +extern int early_init_dt_scan_opal(unsigned long node, const char *uname, + int depth, void *data); extern int early_init_dt_scan_recoverable_ranges(unsigned long node, const char *uname, int depth, void *data); @@ -893,10 +894,6 @@ extern int opal_put_chars(uint32_t vtermno, const char *buf, int total_len); extern void hvc_opal_init_early(void); -/* Internal functions */ -extern int early_init_dt_scan_opal(unsigned long node, const char *uname, - int depth, void *data); - extern int opal_notifier_register(struct notifier_block *nb); extern int opal_notifier_unregister(struct notifier_block *nb); @@ -906,9 +903,6 @@ extern void opal_notifier_enable(void); extern void opal_notifier_disable(void); extern void opal_notifier_update_evt(uint64_t evt_mask, uint64_t evt_val); -extern int opal_get_chars(uint32_t vtermno, char *buf, int count); -extern int opal_put_chars(uint32_t vtermno, const char *buf, int total_len); - extern int __opal_async_get_token(void); extern int opal_async_get_token_interruptible(void); extern int __opal_async_release_token(int token); @@ -916,8 +910,6 @@ extern int opal_async_release_token(int token); extern int opal_async_wait_response(uint64_t token, struct opal_msg *msg); extern int opal_get_sensor_data(u32 sensor_hndl, u32 *sensor_data); -extern void hvc_opal_init_early(void); - struct rtc_time; extern int opal_set_rtc_time(struct rtc_time *tm); extern void opal_get_rtc_time(struct rtc_time *tm); @@ -937,6 +929,10 @@ extern int opal_resync_timebase(void); extern void opal_lpc_init(void); +struct opal_sg_list *opal_vmalloc_to_sg_list(void *vmalloc_addr, + unsigned long vmalloc_size); +void opal_free_sg_list(struct opal_sg_list *sg); + #endif /* __ASSEMBLY__ */ #endif /* __OPAL_H */ diff --git a/arch/powerpc/include/uapi/asm/setup.h b/arch/powerpc/include/uapi/asm/setup.h index 552df83f1a49..ae3fb68cb28e 100644 --- a/arch/powerpc/include/uapi/asm/setup.h +++ b/arch/powerpc/include/uapi/asm/setup.h @@ -1 +1,6 @@ -#include <asm-generic/setup.h> +#ifndef _UAPI_ASM_POWERPC_SETUP_H +#define _UAPI_ASM_POWERPC_SETUP_H + +#define COMMAND_LINE_SIZE 2048 + +#endif /* _UAPI_ASM_POWERPC_SETUP_H */ diff --git a/arch/powerpc/kernel/ppc_ksyms.c b/arch/powerpc/kernel/ppc_ksyms.c index 3bd77edd7610..450850a49dce 100644 --- a/arch/powerpc/kernel/ppc_ksyms.c +++ b/arch/powerpc/kernel/ppc_ksyms.c @@ -120,6 +120,7 @@ EXPORT_SYMBOL(giveup_spe); EXPORT_SYMBOL(flush_instruction_cache); #endif EXPORT_SYMBOL(flush_dcache_range); +EXPORT_SYMBOL(flush_icache_range); #ifdef CONFIG_SMP #ifdef CONFIG_PPC32 diff --git a/arch/powerpc/kernel/rtas_flash.c b/arch/powerpc/kernel/rtas_flash.c index 2f3cdb01506d..658e89d2025b 100644 --- a/arch/powerpc/kernel/rtas_flash.c +++ b/arch/powerpc/kernel/rtas_flash.c @@ -705,7 +705,7 @@ static int __init rtas_flash_init(void) if (rtas_token("ibm,update-flash-64-and-reboot") == RTAS_UNKNOWN_SERVICE) { pr_info("rtas_flash: no firmware flash support\n"); - return 1; + return -EINVAL; } rtas_validate_flash_data.buf = kzalloc(VALIDATE_BUF_SIZE, GFP_KERNEL); diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S index ffbb871c2bd8..b031f932c0cc 100644 --- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S +++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S @@ -242,6 +242,12 @@ kvm_novcpu_exit: */ .globl kvm_start_guest kvm_start_guest: + + /* Set runlatch bit the minute you wake up from nap */ + mfspr r1, SPRN_CTRLF + ori r1, r1, 1 + mtspr SPRN_CTRLT, r1 + ld r2,PACATOC(r13) li r0,KVM_HWTHREAD_IN_KVM @@ -309,6 +315,11 @@ kvm_no_guest: li r0, KVM_HWTHREAD_IN_NAP stb r0, HSTATE_HWTHREAD_STATE(r13) kvm_do_nap: + /* Clear the runlatch bit before napping */ + mfspr r2, SPRN_CTRLF + clrrdi r2, r2, 1 + mtspr SPRN_CTRLT, r2 + li r3, LPCR_PECE0 mfspr r4, SPRN_LPCR rlwimi r4, r3, 0, LPCR_PECE0 | LPCR_PECE1 @@ -1999,8 +2010,13 @@ END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_206) /* * Take a nap until a decrementer or external or doobell interrupt - * occurs, with PECE1, PECE0 and PECEDP set in LPCR + * occurs, with PECE1, PECE0 and PECEDP set in LPCR. Also clear the + * runlatch bit before napping. */ + mfspr r2, SPRN_CTRLF + clrrdi r2, r2, 1 + mtspr SPRN_CTRLT, r2 + li r0,1 stb r0,HSTATE_HWTHREAD_REQ(r13) mfspr r5,SPRN_LPCR diff --git a/arch/powerpc/mm/hash_native_64.c b/arch/powerpc/mm/hash_native_64.c index 3ea26c25590b..cf1d325eae8b 100644 --- a/arch/powerpc/mm/hash_native_64.c +++ b/arch/powerpc/mm/hash_native_64.c @@ -82,17 +82,14 @@ static inline void __tlbie(unsigned long vpn, int psize, int apsize, int ssize) va &= ~((1ul << mmu_psize_defs[apsize].shift) - 1); va |= penc << 12; va |= ssize << 8; - /* Add AVAL part */ - if (psize != apsize) { - /* - * MPSS, 64K base page size and 16MB parge page size - * We don't need all the bits, but rest of the bits - * must be ignored by the processor. - * vpn cover upto 65 bits of va. (0...65) and we need - * 58..64 bits of va. - */ - va |= (vpn & 0xfe); - } + /* + * AVAL bits: + * We don't need all the bits, but rest of the bits + * must be ignored by the processor. + * vpn cover upto 65 bits of va. (0...65) and we need + * 58..64 bits of va. + */ + va |= (vpn & 0xfe); /* AVAL */ va |= 1; /* L */ asm volatile(ASM_FTR_IFCLR("tlbie %0,1", PPC_TLBIE(%1,%0), %2) : : "r" (va), "r"(0), "i" (CPU_FTR_ARCH_206) @@ -133,17 +130,14 @@ static inline void __tlbiel(unsigned long vpn, int psize, int apsize, int ssize) va &= ~((1ul << mmu_psize_defs[apsize].shift) - 1); va |= penc << 12; va |= ssize << 8; - /* Add AVAL part */ - if (psize != apsize) { - /* - * MPSS, 64K base page size and 16MB parge page size - * We don't need all the bits, but rest of the bits - * must be ignored by the processor. - * vpn cover upto 65 bits of va. (0...65) and we need - * 58..64 bits of va. - */ - va |= (vpn & 0xfe); - } + /* + * AVAL bits: + * We don't need all the bits, but rest of the bits + * must be ignored by the processor. + * vpn cover upto 65 bits of va. (0...65) and we need + * 58..64 bits of va. + */ + va |= (vpn & 0xfe); va |= 1; /* L */ asm volatile(".long 0x7c000224 | (%0 << 11) | (1 << 21)" : : "r"(va) : "memory"); diff --git a/arch/powerpc/perf/hv-24x7.c b/arch/powerpc/perf/hv-24x7.c index 297c91051413..e0766b82e165 100644 --- a/arch/powerpc/perf/hv-24x7.c +++ b/arch/powerpc/perf/hv-24x7.c @@ -155,16 +155,28 @@ static ssize_t read_offset_data(void *dest, size_t dest_len, return copy_len; } -static unsigned long h_get_24x7_catalog_page(char page[static 4096], - u32 version, u32 index) +static unsigned long h_get_24x7_catalog_page_(unsigned long phys_4096, + unsigned long version, + unsigned long index) { - WARN_ON(!IS_ALIGNED((unsigned long)page, 4096)); + pr_devel("h_get_24x7_catalog_page(0x%lx, %lu, %lu)", + phys_4096, + version, + index); + WARN_ON(!IS_ALIGNED(phys_4096, 4096)); return plpar_hcall_norets(H_GET_24X7_CATALOG_PAGE, - virt_to_phys(page), + phys_4096, version, index); } +static unsigned long h_get_24x7_catalog_page(char page[], + u64 version, u32 index) +{ + return h_get_24x7_catalog_page_(virt_to_phys(page), + version, index); +} + static ssize_t catalog_read(struct file *filp, struct kobject *kobj, struct bin_attribute *bin_attr, char *buf, loff_t offset, size_t count) @@ -173,7 +185,7 @@ static ssize_t catalog_read(struct file *filp, struct kobject *kobj, ssize_t ret = 0; size_t catalog_len = 0, catalog_page_len = 0, page_count = 0; loff_t page_offset = 0; - uint32_t catalog_version_num = 0; + uint64_t catalog_version_num = 0; void *page = kmem_cache_alloc(hv_page_cache, GFP_USER); struct hv_24x7_catalog_page_0 *page_0 = page; if (!page) @@ -185,7 +197,7 @@ static ssize_t catalog_read(struct file *filp, struct kobject *kobj, goto e_free; } - catalog_version_num = be32_to_cpu(page_0->version); + catalog_version_num = be64_to_cpu(page_0->version); catalog_page_len = be32_to_cpu(page_0->length); catalog_len = catalog_page_len * 4096; @@ -208,8 +220,9 @@ static ssize_t catalog_read(struct file *filp, struct kobject *kobj, page, 4096, page_offset * 4096); e_free: if (hret) - pr_err("h_get_24x7_catalog_page(ver=%d, page=%lld) failed: rc=%ld\n", - catalog_version_num, page_offset, hret); + pr_err("h_get_24x7_catalog_page(ver=%lld, page=%lld) failed:" + " rc=%ld\n", + catalog_version_num, page_offset, hret); kfree(page); pr_devel("catalog_read: offset=%lld(%lld) count=%zu(%zu) catalog_len=%zu(%zu) => %zd\n", @@ -243,7 +256,7 @@ e_free: \ static DEVICE_ATTR_RO(_name) PAGE_0_ATTR(catalog_version, "%lld\n", - (unsigned long long)be32_to_cpu(page_0->version)); + (unsigned long long)be64_to_cpu(page_0->version)); PAGE_0_ATTR(catalog_len, "%lld\n", (unsigned long long)be32_to_cpu(page_0->length) * 4096); static BIN_ATTR_RO(catalog, 0/* real length varies */); @@ -485,13 +498,13 @@ static int hv_24x7_init(void) struct hv_perf_caps caps; if (!firmware_has_feature(FW_FEATURE_LPAR)) { - pr_info("not a virtualized system, not enabling\n"); + pr_debug("not a virtualized system, not enabling\n"); return -ENODEV; } hret = hv_perf_caps_get(&caps); if (hret) { - pr_info("could not obtain capabilities, error 0x%80lx, not enabling\n", + pr_debug("could not obtain capabilities, not enabling, rc=%ld\n", hret); return -ENODEV; } diff --git a/arch/powerpc/perf/hv-gpci.c b/arch/powerpc/perf/hv-gpci.c index 278ba7b9c2b5..c9d399a2df82 100644 --- a/arch/powerpc/perf/hv-gpci.c +++ b/arch/powerpc/perf/hv-gpci.c @@ -78,7 +78,7 @@ static ssize_t kernel_version_show(struct device *dev, return sprintf(page, "0x%x\n", COUNTER_INFO_VERSION_CURRENT); } -DEVICE_ATTR_RO(kernel_version); +static DEVICE_ATTR_RO(kernel_version); HV_CAPS_ATTR(version, "0x%x\n"); HV_CAPS_ATTR(ga, "%d\n"); HV_CAPS_ATTR(expanded, "%d\n"); @@ -273,13 +273,13 @@ static int hv_gpci_init(void) struct hv_perf_caps caps; if (!firmware_has_feature(FW_FEATURE_LPAR)) { - pr_info("not a virtualized system, not enabling\n"); + pr_debug("not a virtualized system, not enabling\n"); return -ENODEV; } hret = hv_perf_caps_get(&caps); if (hret) { - pr_info("could not obtain capabilities, error 0x%80lx, not enabling\n", + pr_debug("could not obtain capabilities, not enabling, rc=%ld\n", hret); return -ENODEV; } diff --git a/arch/powerpc/platforms/powernv/opal-dump.c b/arch/powerpc/platforms/powernv/opal-dump.c index b9827b0d87e4..788a1977b9a5 100644 --- a/arch/powerpc/platforms/powernv/opal-dump.c +++ b/arch/powerpc/platforms/powernv/opal-dump.c @@ -209,89 +209,20 @@ static struct kobj_type dump_ktype = { .default_attrs = dump_default_attrs, }; -static void free_dump_sg_list(struct opal_sg_list *list) -{ - struct opal_sg_list *sg1; - while (list) { - sg1 = list->next; - kfree(list); - list = sg1; - } - list = NULL; -} - -static struct opal_sg_list *dump_data_to_sglist(struct dump_obj *dump) -{ - struct opal_sg_list *sg1, *list = NULL; - void *addr; - int64_t size; - - addr = dump->buffer; - size = dump->size; - - sg1 = kzalloc(PAGE_SIZE, GFP_KERNEL); - if (!sg1) - goto nomem; - - list = sg1; - sg1->num_entries = 0; - while (size > 0) { - /* Translate virtual address to physical address */ - sg1->entry[sg1->num_entries].data = - (void *)(vmalloc_to_pfn(addr) << PAGE_SHIFT); - - if (size > PAGE_SIZE) - sg1->entry[sg1->num_entries].length = PAGE_SIZE; - else - sg1->entry[sg1->num_entries].length = size; - - sg1->num_entries++; - if (sg1->num_entries >= SG_ENTRIES_PER_NODE) { - sg1->next = kzalloc(PAGE_SIZE, GFP_KERNEL); - if (!sg1->next) - goto nomem; - - sg1 = sg1->next; - sg1->num_entries = 0; - } - addr += PAGE_SIZE; - size -= PAGE_SIZE; - } - return list; - -nomem: - pr_err("%s : Failed to allocate memory\n", __func__); - free_dump_sg_list(list); - return NULL; -} - -static void sglist_to_phy_addr(struct opal_sg_list *list) -{ - struct opal_sg_list *sg, *next; - - for (sg = list; sg; sg = next) { - next = sg->next; - /* Don't translate NULL pointer for last entry */ - if (sg->next) - sg->next = (struct opal_sg_list *)__pa(sg->next); - else - sg->next = NULL; - - /* Convert num_entries to length */ - sg->num_entries = - sg->num_entries * sizeof(struct opal_sg_entry) + 16; - } -} - -static int64_t dump_read_info(uint32_t *id, uint32_t *size, uint32_t *type) +static int64_t dump_read_info(uint32_t *dump_id, uint32_t *dump_size, uint32_t *dump_type) { + __be32 id, size, type; int rc; - *type = 0xffffffff; - rc = opal_dump_info2(id, size, type); + type = cpu_to_be32(0xffffffff); + rc = opal_dump_info2(&id, &size, &type); if (rc == OPAL_PARAMETER) - rc = opal_dump_info(id, size); + rc = opal_dump_info(&id, &size); + + *dump_id = be32_to_cpu(id); + *dump_size = be32_to_cpu(size); + *dump_type = be32_to_cpu(type); if (rc) pr_warn("%s: Failed to get dump info (%d)\n", @@ -314,15 +245,12 @@ static int64_t dump_read_data(struct dump_obj *dump) } /* Generate SG list */ - list = dump_data_to_sglist(dump); + list = opal_vmalloc_to_sg_list(dump->buffer, dump->size); if (!list) { rc = -ENOMEM; goto out; } - /* Translate sg list addr to real address */ - sglist_to_phy_addr(list); - /* First entry address */ addr = __pa(list); @@ -341,7 +269,7 @@ static int64_t dump_read_data(struct dump_obj *dump) __func__, dump->id); /* Free SG list */ - free_dump_sg_list(list); + opal_free_sg_list(list); out: return rc; diff --git a/arch/powerpc/platforms/powernv/opal-elog.c b/arch/powerpc/platforms/powernv/opal-elog.c index ef7bc2a97862..10268c41d830 100644 --- a/arch/powerpc/platforms/powernv/opal-elog.c +++ b/arch/powerpc/platforms/powernv/opal-elog.c @@ -238,18 +238,25 @@ static struct elog_obj *create_elog_obj(uint64_t id, size_t size, uint64_t type) static void elog_work_fn(struct work_struct *work) { - size_t elog_size; + __be64 size; + __be64 id; + __be64 type; + uint64_t elog_size; uint64_t log_id; uint64_t elog_type; int rc; char name[2+16+1]; - rc = opal_get_elog_size(&log_id, &elog_size, &elog_type); + rc = opal_get_elog_size(&id, &size, &type); if (rc != OPAL_SUCCESS) { pr_err("ELOG: Opal log read failed\n"); return; } + elog_size = be64_to_cpu(size); + log_id = be64_to_cpu(id); + elog_type = be64_to_cpu(type); + BUG_ON(elog_size > OPAL_MAX_ERRLOG_SIZE); if (elog_size >= OPAL_MAX_ERRLOG_SIZE) diff --git a/arch/powerpc/platforms/powernv/opal-flash.c b/arch/powerpc/platforms/powernv/opal-flash.c index 714ef972406b..dc487ff04704 100644 --- a/arch/powerpc/platforms/powernv/opal-flash.c +++ b/arch/powerpc/platforms/powernv/opal-flash.c @@ -79,9 +79,6 @@ /* XXX: Assume candidate image size is <= 1GB */ #define MAX_IMAGE_SIZE 0x40000000 -/* Flash sg list version */ -#define SG_LIST_VERSION (1UL) - /* Image status */ enum { IMAGE_INVALID, @@ -131,11 +128,15 @@ static DEFINE_MUTEX(image_data_mutex); */ static inline void opal_flash_validate(void) { - struct validate_flash_t *args_buf = &validate_flash_data; + long ret; + void *buf = validate_flash_data.buf; + __be32 size, result; - args_buf->status = opal_validate_flash(__pa(args_buf->buf), - &(args_buf->buf_size), - &(args_buf->result)); + ret = opal_validate_flash(__pa(buf), &size, &result); + + validate_flash_data.status = ret; + validate_flash_data.buf_size = be32_to_cpu(size); + validate_flash_data.result = be32_to_cpu(result); } /* @@ -268,93 +269,11 @@ static ssize_t manage_store(struct kobject *kobj, } /* - * Free sg list - */ -static void free_sg_list(struct opal_sg_list *list) -{ - struct opal_sg_list *sg1; - while (list) { - sg1 = list->next; - kfree(list); - list = sg1; - } - list = NULL; -} - -/* - * Build candidate image scatter gather list - * - * list format: - * ----------------------------------- - * | VER (8) | Entry length in bytes | - * ----------------------------------- - * | Pointer to next entry | - * ----------------------------------- - * | Address of memory area 1 | - * ----------------------------------- - * | Length of memory area 1 | - * ----------------------------------- - * | ......... | - * ----------------------------------- - * | ......... | - * ----------------------------------- - * | Address of memory area N | - * ----------------------------------- - * | Length of memory area N | - * ----------------------------------- - */ -static struct opal_sg_list *image_data_to_sglist(void) -{ - struct opal_sg_list *sg1, *list = NULL; - void *addr; - int size; - - addr = image_data.data; - size = image_data.size; - - sg1 = kzalloc(PAGE_SIZE, GFP_KERNEL); - if (!sg1) - return NULL; - - list = sg1; - sg1->num_entries = 0; - while (size > 0) { - /* Translate virtual address to physical address */ - sg1->entry[sg1->num_entries].data = - (void *)(vmalloc_to_pfn(addr) << PAGE_SHIFT); - - if (size > PAGE_SIZE) - sg1->entry[sg1->num_entries].length = PAGE_SIZE; - else - sg1->entry[sg1->num_entries].length = size; - - sg1->num_entries++; - if (sg1->num_entries >= SG_ENTRIES_PER_NODE) { - sg1->next = kzalloc(PAGE_SIZE, GFP_KERNEL); - if (!sg1->next) { - pr_err("%s : Failed to allocate memory\n", - __func__); - goto nomem; - } - - sg1 = sg1->next; - sg1->num_entries = 0; - } - addr += PAGE_SIZE; - size -= PAGE_SIZE; - } - return list; -nomem: - free_sg_list(list); - return NULL; -} - -/* * OPAL update flash */ static int opal_flash_update(int op) { - struct opal_sg_list *sg, *list, *next; + struct opal_sg_list *list; unsigned long addr; int64_t rc = OPAL_PARAMETER; @@ -364,30 +283,13 @@ static int opal_flash_update(int op) goto flash; } - list = image_data_to_sglist(); + list = opal_vmalloc_to_sg_list(image_data.data, image_data.size); if (!list) goto invalid_img; /* First entry address */ addr = __pa(list); - /* Translate sg list address to absolute */ - for (sg = list; sg; sg = next) { - next = sg->next; - /* Don't translate NULL pointer for last entry */ - if (sg->next) - sg->next = (struct opal_sg_list *)__pa(sg->next); - else - sg->next = NULL; - - /* - * Convert num_entries to version/length format - * to satisfy OPAL. - */ - sg->num_entries = (SG_LIST_VERSION << 56) | - (sg->num_entries * sizeof(struct opal_sg_entry) + 16); - } - pr_alert("FLASH: Image is %u bytes\n", image_data.size); pr_alert("FLASH: Image update requested\n"); pr_alert("FLASH: Image will be updated during system reboot\n"); diff --git a/arch/powerpc/platforms/powernv/opal-sysparam.c b/arch/powerpc/platforms/powernv/opal-sysparam.c index 6b614726baf2..d202f9bc3683 100644 --- a/arch/powerpc/platforms/powernv/opal-sysparam.c +++ b/arch/powerpc/platforms/powernv/opal-sysparam.c @@ -39,10 +39,11 @@ struct param_attr { struct kobj_attribute kobj_attr; }; -static int opal_get_sys_param(u32 param_id, u32 length, void *buffer) +static ssize_t opal_get_sys_param(u32 param_id, u32 length, void *buffer) { struct opal_msg msg; - int ret, token; + ssize_t ret; + int token; token = opal_async_get_token_interruptible(); if (token < 0) { @@ -59,7 +60,7 @@ static int opal_get_sys_param(u32 param_id, u32 length, void *buffer) ret = opal_async_wait_response(token, &msg); if (ret) { - pr_err("%s: Failed to wait for the async response, %d\n", + pr_err("%s: Failed to wait for the async response, %zd\n", __func__, ret); goto out_token; } @@ -111,7 +112,7 @@ static ssize_t sys_param_show(struct kobject *kobj, { struct param_attr *attr = container_of(kobj_attr, struct param_attr, kobj_attr); - int ret; + ssize_t ret; mutex_lock(&opal_sysparam_mutex); ret = opal_get_sys_param(attr->param_id, attr->param_size, @@ -121,9 +122,10 @@ static ssize_t sys_param_show(struct kobject *kobj, memcpy(buf, param_data_buf, attr->param_size); + ret = attr->param_size; out: mutex_unlock(&opal_sysparam_mutex); - return ret ? ret : attr->param_size; + return ret; } static ssize_t sys_param_store(struct kobject *kobj, @@ -131,14 +133,20 @@ static ssize_t sys_param_store(struct kobject *kobj, { struct param_attr *attr = container_of(kobj_attr, struct param_attr, kobj_attr); - int ret; + ssize_t ret; + + /* MAX_PARAM_DATA_LEN is sizeof(param_data_buf) */ + if (count > MAX_PARAM_DATA_LEN) + count = MAX_PARAM_DATA_LEN; mutex_lock(&opal_sysparam_mutex); memcpy(param_data_buf, buf, count); ret = opal_set_sys_param(attr->param_id, attr->param_size, param_data_buf); mutex_unlock(&opal_sysparam_mutex); - return ret ? ret : count; + if (!ret) + ret = count; + return ret; } void __init opal_sys_param_init(void) @@ -214,13 +222,13 @@ void __init opal_sys_param_init(void) } if (of_property_read_u32_array(sysparam, "param-len", size, count)) { - pr_err("SYSPARAM: Missing propery param-len in the DT\n"); + pr_err("SYSPARAM: Missing property param-len in the DT\n"); goto out_free_perm; } if (of_property_read_u8_array(sysparam, "param-perm", perm, count)) { - pr_err("SYSPARAM: Missing propery param-perm in the DT\n"); + pr_err("SYSPARAM: Missing property param-perm in the DT\n"); goto out_free_perm; } @@ -233,6 +241,12 @@ void __init opal_sys_param_init(void) /* For each of the parameters, populate the parameter attributes */ for (i = 0; i < count; i++) { + if (size[i] > MAX_PARAM_DATA_LEN) { + pr_warn("SYSPARAM: Not creating parameter %d as size " + "exceeds buffer length\n", i); + continue; + } + sysfs_attr_init(&attr[i].kobj_attr.attr); attr[i].param_id = id[i]; attr[i].param_size = size[i]; diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c index 49d2f00019e5..360ad80c754c 100644 --- a/arch/powerpc/platforms/powernv/opal.c +++ b/arch/powerpc/platforms/powernv/opal.c @@ -242,14 +242,14 @@ void opal_notifier_update_evt(uint64_t evt_mask, void opal_notifier_enable(void) { int64_t rc; - uint64_t evt = 0; + __be64 evt = 0; atomic_set(&opal_notifier_hold, 0); /* Process pending events */ rc = opal_poll_events(&evt); if (rc == OPAL_SUCCESS && evt) - opal_do_notifier(evt); + opal_do_notifier(be64_to_cpu(evt)); } void opal_notifier_disable(void) @@ -529,7 +529,7 @@ static irqreturn_t opal_interrupt(int irq, void *data) opal_handle_interrupt(virq_to_hw(irq), &events); - opal_do_notifier(events); + opal_do_notifier(be64_to_cpu(events)); return IRQ_HANDLED; } @@ -638,3 +638,66 @@ void opal_shutdown(void) /* Export this so that test modules can use it */ EXPORT_SYMBOL_GPL(opal_invalid_call); + +/* Convert a region of vmalloc memory to an opal sg list */ +struct opal_sg_list *opal_vmalloc_to_sg_list(void *vmalloc_addr, + unsigned long vmalloc_size) +{ + struct opal_sg_list *sg, *first = NULL; + unsigned long i = 0; + + sg = kzalloc(PAGE_SIZE, GFP_KERNEL); + if (!sg) + goto nomem; + + first = sg; + + while (vmalloc_size > 0) { + uint64_t data = vmalloc_to_pfn(vmalloc_addr) << PAGE_SHIFT; + uint64_t length = min(vmalloc_size, PAGE_SIZE); + + sg->entry[i].data = cpu_to_be64(data); + sg->entry[i].length = cpu_to_be64(length); + i++; + + if (i >= SG_ENTRIES_PER_NODE) { + struct opal_sg_list *next; + + next = kzalloc(PAGE_SIZE, GFP_KERNEL); + if (!next) + goto nomem; + + sg->length = cpu_to_be64( + i * sizeof(struct opal_sg_entry) + 16); + i = 0; + sg->next = cpu_to_be64(__pa(next)); + sg = next; + } + + vmalloc_addr += length; + vmalloc_size -= length; + } + + sg->length = cpu_to_be64(i * sizeof(struct opal_sg_entry) + 16); + + return first; + +nomem: + pr_err("%s : Failed to allocate memory\n", __func__); + opal_free_sg_list(first); + return NULL; +} + +void opal_free_sg_list(struct opal_sg_list *sg) +{ + while (sg) { + uint64_t next = be64_to_cpu(sg->next); + + kfree(sg); + + if (next) + sg = __va(next); + else + sg = NULL; + } +} diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c index 3b2b4fb3585b..98824aa99173 100644 --- a/arch/powerpc/platforms/powernv/pci-ioda.c +++ b/arch/powerpc/platforms/powernv/pci-ioda.c @@ -343,7 +343,6 @@ static void pnv_ioda_setup_same_PE(struct pci_bus *bus, struct pnv_ioda_pe *pe) pci_name(dev)); continue; } - pci_dev_get(dev); pdn->pcidev = dev; pdn->pe_number = pe->pe_number; pe->dma_weight += pnv_ioda_dma_weight(dev); @@ -462,7 +461,7 @@ static void pnv_pci_ioda_dma_dev_setup(struct pnv_phb *phb, struct pci_dev *pdev pe = &phb->ioda.pe_array[pdn->pe_number]; WARN_ON(get_dma_ops(&pdev->dev) != &dma_iommu_ops); - set_iommu_table_base_and_group(&pdev->dev, &pe->tce32_table); + set_iommu_table_base(&pdev->dev, &pe->tce32_table); } static int pnv_pci_ioda_dma_set_mask(struct pnv_phb *phb, diff --git a/arch/powerpc/platforms/powernv/setup.c b/arch/powerpc/platforms/powernv/setup.c index 61cf8fa9c61b..8723d32632f5 100644 --- a/arch/powerpc/platforms/powernv/setup.c +++ b/arch/powerpc/platforms/powernv/setup.c @@ -162,18 +162,62 @@ static void pnv_shutdown(void) } #ifdef CONFIG_KEXEC +static void pnv_kexec_wait_secondaries_down(void) +{ + int my_cpu, i, notified = -1; + + my_cpu = get_cpu(); + + for_each_online_cpu(i) { + uint8_t status; + int64_t rc; + + if (i == my_cpu) + continue; + + for (;;) { + rc = opal_query_cpu_status(get_hard_smp_processor_id(i), + &status); + if (rc != OPAL_SUCCESS || status != OPAL_THREAD_STARTED) + break; + barrier(); + if (i != notified) { + printk(KERN_INFO "kexec: waiting for cpu %d " + "(physical %d) to enter OPAL\n", + i, paca[i].hw_cpu_id); + notified = i; + } + } + } +} + static void pnv_kexec_cpu_down(int crash_shutdown, int secondary) { xics_kexec_teardown_cpu(secondary); - /* Return secondary CPUs to firmware on OPAL v3 */ - if (firmware_has_feature(FW_FEATURE_OPALv3) && secondary) { + /* On OPAL v3, we return all CPUs to firmware */ + + if (!firmware_has_feature(FW_FEATURE_OPALv3)) + return; + + if (secondary) { + /* Return secondary CPUs to firmware on OPAL v3 */ mb(); get_paca()->kexec_state = KEXEC_STATE_REAL_MODE; mb(); /* Return the CPU to OPAL */ opal_return_cpu(); + } else if (crash_shutdown) { + /* + * On crash, we don't wait for secondaries to go + * down as they might be unreachable or hung, so + * instead we just wait a bit and move on. + */ + mdelay(1); + } else { + /* Primary waits for the secondaries to have reached OPAL */ + pnv_kexec_wait_secondaries_down(); } } #endif /* CONFIG_KEXEC */ diff --git a/arch/powerpc/platforms/powernv/smp.c b/arch/powerpc/platforms/powernv/smp.c index 908672bdcea6..bf5fcd452168 100644 --- a/arch/powerpc/platforms/powernv/smp.c +++ b/arch/powerpc/platforms/powernv/smp.c @@ -30,6 +30,7 @@ #include <asm/cputhreads.h> #include <asm/xics.h> #include <asm/opal.h> +#include <asm/runlatch.h> #include "powernv.h" @@ -156,7 +157,9 @@ static void pnv_smp_cpu_kill_self(void) */ mtspr(SPRN_LPCR, mfspr(SPRN_LPCR) & ~(u64)LPCR_PECE1); while (!generic_check_cpu_restart(cpu)) { + ppc64_runlatch_off(); power7_nap(); + ppc64_runlatch_on(); if (!generic_check_cpu_restart(cpu)) { DBG("CPU%d Unexpected exit while offline !\n", cpu); /* We may be getting an IPI, so we re-enable diff --git a/arch/powerpc/platforms/pseries/hotplug-cpu.c b/arch/powerpc/platforms/pseries/hotplug-cpu.c index 9b8e05078a63..20d62975856f 100644 --- a/arch/powerpc/platforms/pseries/hotplug-cpu.c +++ b/arch/powerpc/platforms/pseries/hotplug-cpu.c @@ -88,13 +88,14 @@ void set_default_offline_state(int cpu) static void rtas_stop_self(void) { - struct rtas_args args = { - .token = cpu_to_be32(rtas_stop_self_token), + static struct rtas_args args = { .nargs = 0, .nret = 1, .rets = &args.args[0], }; + args.token = cpu_to_be32(rtas_stop_self_token); + local_irq_disable(); BUG_ON(rtas_stop_self_token == RTAS_UNKNOWN_SERVICE); diff --git a/arch/powerpc/platforms/pseries/hotplug-memory.c b/arch/powerpc/platforms/pseries/hotplug-memory.c index 573b488fc48b..7f75c94af822 100644 --- a/arch/powerpc/platforms/pseries/hotplug-memory.c +++ b/arch/powerpc/platforms/pseries/hotplug-memory.c @@ -100,10 +100,10 @@ static int pseries_remove_memblock(unsigned long base, unsigned int memblock_siz start_pfn = base >> PAGE_SHIFT; - if (!pfn_valid(start_pfn)) { - memblock_remove(base, memblock_size); - return 0; - } + lock_device_hotplug(); + + if (!pfn_valid(start_pfn)) + goto out; block_sz = memory_block_size_bytes(); sections_per_block = block_sz / MIN_MEMORY_BLOCK_SIZE; @@ -114,8 +114,10 @@ static int pseries_remove_memblock(unsigned long base, unsigned int memblock_siz base += MIN_MEMORY_BLOCK_SIZE; } +out: /* Update memory regions for memory remove */ memblock_remove(base, memblock_size); + unlock_device_hotplug(); return 0; } diff --git a/arch/powerpc/sysdev/ppc4xx_pci.c b/arch/powerpc/sysdev/ppc4xx_pci.c index 64603a10b863..4914fd3f41ec 100644 --- a/arch/powerpc/sysdev/ppc4xx_pci.c +++ b/arch/powerpc/sysdev/ppc4xx_pci.c @@ -1058,7 +1058,7 @@ static int __init apm821xx_pciex_core_init(struct device_node *np) return 1; } -static int apm821xx_pciex_init_port_hw(struct ppc4xx_pciex_port *port) +static int __init apm821xx_pciex_init_port_hw(struct ppc4xx_pciex_port *port) { u32 val; diff --git a/arch/s390/net/bpf_jit_comp.c b/arch/s390/net/bpf_jit_comp.c index 9c36dc398f90..452d3ebd9d0f 100644 --- a/arch/s390/net/bpf_jit_comp.c +++ b/arch/s390/net/bpf_jit_comp.c @@ -276,7 +276,6 @@ static void bpf_jit_noleaks(struct bpf_jit *jit, struct sock_filter *filter) case BPF_S_LD_W_IND: case BPF_S_LD_H_IND: case BPF_S_LD_B_IND: - case BPF_S_LDX_B_MSH: case BPF_S_LD_IMM: case BPF_S_LD_MEM: case BPF_S_MISC_TXA: diff --git a/arch/x86/Makefile b/arch/x86/Makefile index d1b7c377a234..ce6ad7e6a7d7 100644 --- a/arch/x86/Makefile +++ b/arch/x86/Makefile @@ -83,7 +83,9 @@ else KBUILD_CFLAGS += -m64 # Don't autogenerate traditional x87, MMX or SSE instructions - KBUILD_CFLAGS += -mno-mmx -mno-sse -mno-80387 -mno-fp-ret-in-387 + KBUILD_CFLAGS += -mno-mmx -mno-sse + KBUILD_CFLAGS += $(call cc-option,-mno-80387) + KBUILD_CFLAGS += $(call cc-option,-mno-fp-ret-in-387) # Use -mpreferred-stack-boundary=3 if supported. KBUILD_CFLAGS += $(call cc-option,-mpreferred-stack-boundary=3) diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c index 6ad4658de705..d23aa82e7a7b 100644 --- a/arch/x86/kernel/apic/io_apic.c +++ b/arch/x86/kernel/apic/io_apic.c @@ -3425,6 +3425,11 @@ int get_nr_irqs_gsi(void) return nr_irqs_gsi; } +unsigned int arch_dynirq_lower_bound(unsigned int from) +{ + return from < nr_irqs_gsi ? nr_irqs_gsi : from; +} + int __init arch_probe_nr_irqs(void) { int nr; diff --git a/arch/x86/kernel/cpu/perf_event_intel_rapl.c b/arch/x86/kernel/cpu/perf_event_intel_rapl.c index 7c87424d4140..619f7699487a 100644 --- a/arch/x86/kernel/cpu/perf_event_intel_rapl.c +++ b/arch/x86/kernel/cpu/perf_event_intel_rapl.c @@ -543,7 +543,8 @@ static int rapl_cpu_prepare(int cpu) if (phys_id < 0) return -1; - if (!rdmsrl_safe(MSR_RAPL_POWER_UNIT, &msr_rapl_power_unit_bits)) + /* protect rdmsrl() to handle virtualization */ + if (rdmsrl_safe(MSR_RAPL_POWER_UNIT, &msr_rapl_power_unit_bits)) return -1; pmu = kzalloc_node(sizeof(*pmu), GFP_KERNEL, cpu_to_node(cpu)); diff --git a/arch/x86/kernel/vsmp_64.c b/arch/x86/kernel/vsmp_64.c index f6584a90aba3..5edc34b5b951 100644 --- a/arch/x86/kernel/vsmp_64.c +++ b/arch/x86/kernel/vsmp_64.c @@ -26,6 +26,9 @@ #define TOPOLOGY_REGISTER_OFFSET 0x10 +/* Flag below is initialized once during vSMP PCI initialization. */ +static int irq_routing_comply = 1; + #if defined CONFIG_PCI && defined CONFIG_PARAVIRT /* * Interrupt control on vSMPowered systems: @@ -101,6 +104,10 @@ static void __init set_vsmp_pv_ops(void) #ifdef CONFIG_SMP if (cap & ctl & BIT(8)) { ctl &= ~BIT(8); + + /* Interrupt routing set to ignore */ + irq_routing_comply = 0; + #ifdef CONFIG_PROC_FS /* Don't let users change irq affinity via procfs */ no_irq_affinity = 1; @@ -218,7 +225,9 @@ static void vsmp_apic_post_init(void) { /* need to update phys_pkg_id */ apic->phys_pkg_id = apicid_phys_pkg_id; - apic->vector_allocation_domain = fill_vector_allocation_domain; + + if (!irq_routing_comply) + apic->vector_allocation_domain = fill_vector_allocation_domain; } void __init vsmp_init(void) diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 1f68c5831924..33e8c028842f 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -503,7 +503,7 @@ static inline struct vcpu_vmx *to_vmx(struct kvm_vcpu *vcpu) [number##_HIGH] = VMCS12_OFFSET(name)+4 -static const unsigned long shadow_read_only_fields[] = { +static unsigned long shadow_read_only_fields[] = { /* * We do NOT shadow fields that are modified when L0 * traps and emulates any vmx instruction (e.g. VMPTRLD, @@ -526,10 +526,10 @@ static const unsigned long shadow_read_only_fields[] = { GUEST_LINEAR_ADDRESS, GUEST_PHYSICAL_ADDRESS }; -static const int max_shadow_read_only_fields = +static int max_shadow_read_only_fields = ARRAY_SIZE(shadow_read_only_fields); -static const unsigned long shadow_read_write_fields[] = { +static unsigned long shadow_read_write_fields[] = { GUEST_RIP, GUEST_RSP, GUEST_CR0, @@ -558,7 +558,7 @@ static const unsigned long shadow_read_write_fields[] = { HOST_FS_SELECTOR, HOST_GS_SELECTOR }; -static const int max_shadow_read_write_fields = +static int max_shadow_read_write_fields = ARRAY_SIZE(shadow_read_write_fields); static const unsigned short vmcs_field_to_offset_table[] = { @@ -3009,6 +3009,41 @@ static void free_kvm_area(void) } } +static void init_vmcs_shadow_fields(void) +{ + int i, j; + + /* No checks for read only fields yet */ + + for (i = j = 0; i < max_shadow_read_write_fields; i++) { + switch (shadow_read_write_fields[i]) { + case GUEST_BNDCFGS: + if (!vmx_mpx_supported()) + continue; + break; + default: + break; + } + + if (j < i) + shadow_read_write_fields[j] = + shadow_read_write_fields[i]; + j++; + } + max_shadow_read_write_fields = j; + + /* shadowed fields guest access without vmexit */ + for (i = 0; i < max_shadow_read_write_fields; i++) { + clear_bit(shadow_read_write_fields[i], + vmx_vmwrite_bitmap); + clear_bit(shadow_read_write_fields[i], + vmx_vmread_bitmap); + } + for (i = 0; i < max_shadow_read_only_fields; i++) + clear_bit(shadow_read_only_fields[i], + vmx_vmread_bitmap); +} + static __init int alloc_kvm_area(void) { int cpu; @@ -3039,6 +3074,8 @@ static __init int hardware_setup(void) enable_vpid = 0; if (!cpu_has_vmx_shadow_vmcs()) enable_shadow_vmcs = 0; + if (enable_shadow_vmcs) + init_vmcs_shadow_fields(); if (!cpu_has_vmx_ept() || !cpu_has_vmx_ept_4levels()) { @@ -8803,14 +8840,6 @@ static int __init vmx_init(void) memset(vmx_vmread_bitmap, 0xff, PAGE_SIZE); memset(vmx_vmwrite_bitmap, 0xff, PAGE_SIZE); - /* shadowed read/write fields */ - for (i = 0; i < max_shadow_read_write_fields; i++) { - clear_bit(shadow_read_write_fields[i], vmx_vmwrite_bitmap); - clear_bit(shadow_read_write_fields[i], vmx_vmread_bitmap); - } - /* shadowed read only fields */ - for (i = 0; i < max_shadow_read_only_fields; i++) - clear_bit(shadow_read_only_fields[i], vmx_vmread_bitmap); /* * Allow direct access to the PC debug port (it is often used for I/O diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig index 02d6d29a63c1..3a617af60d46 100644 --- a/arch/xtensa/Kconfig +++ b/arch/xtensa/Kconfig @@ -14,6 +14,7 @@ config XTENSA select GENERIC_PCI_IOMAP select ARCH_WANT_IPC_PARSE_VERSION select ARCH_WANT_OPTIONAL_GPIOLIB + select BUILDTIME_EXTABLE_SORT select CLONE_BACKWARDS select IRQ_DOMAIN select HAVE_OPROFILE @@ -189,6 +190,24 @@ config INITIALIZE_XTENSA_MMU_INSIDE_VMLINUX If in doubt, say Y. +config HIGHMEM + bool "High Memory Support" + help + Linux can use the full amount of RAM in the system by + default. However, the default MMUv2 setup only maps the + lowermost 128 MB of memory linearly to the areas starting + at 0xd0000000 (cached) and 0xd8000000 (uncached). + When there are more than 128 MB memory in the system not + all of it can be "permanently mapped" by the kernel. + The physical memory that's not permanently mapped is called + "high memory". + + If you are compiling a kernel which will never run on a + machine with more than 128 MB total physical RAM, answer + N here. + + If unsure, say Y. + endmenu config XTENSA_CALIBRATE_CCOUNT @@ -224,7 +243,6 @@ choice config XTENSA_PLATFORM_ISS bool "ISS" - depends on TTY select XTENSA_CALIBRATE_CCOUNT select SERIAL_CONSOLE help diff --git a/arch/xtensa/boot/dts/kc705.dts b/arch/xtensa/boot/dts/kc705.dts new file mode 100644 index 000000000000..742a347be67a --- /dev/null +++ b/arch/xtensa/boot/dts/kc705.dts @@ -0,0 +1,11 @@ +/dts-v1/; +/include/ "xtfpga.dtsi" +/include/ "xtfpga-flash-128m.dtsi" + +/ { + compatible = "cdns,xtensa-kc705"; + memory@0 { + device_type = "memory"; + reg = <0x00000000 0x08000000>; + }; +}; diff --git a/arch/xtensa/boot/dts/xtfpga-flash-128m.dtsi b/arch/xtensa/boot/dts/xtfpga-flash-128m.dtsi new file mode 100644 index 000000000000..d3a88e029873 --- /dev/null +++ b/arch/xtensa/boot/dts/xtfpga-flash-128m.dtsi @@ -0,0 +1,28 @@ +/ { + soc { + flash: flash@00000000 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "cfi-flash"; + reg = <0x00000000 0x08000000>; + bank-width = <2>; + device-width = <2>; + partition@0x0 { + label = "data"; + reg = <0x00000000 0x06000000>; + }; + partition@0x6000000 { + label = "boot loader area"; + reg = <0x06000000 0x00800000>; + }; + partition@0x6800000 { + label = "kernel image"; + reg = <0x06800000 0x017e0000>; + }; + partition@0x7fe0000 { + label = "boot environment"; + reg = <0x07fe0000 0x00020000>; + }; + }; + }; +}; diff --git a/arch/xtensa/boot/dts/xtfpga-flash-16m.dtsi b/arch/xtensa/boot/dts/xtfpga-flash-16m.dtsi index e5703c7beeb6..1d97203c18e7 100644 --- a/arch/xtensa/boot/dts/xtfpga-flash-16m.dtsi +++ b/arch/xtensa/boot/dts/xtfpga-flash-16m.dtsi @@ -1,26 +1,28 @@ / { - flash: flash@f8000000 { - #address-cells = <1>; - #size-cells = <1>; - compatible = "cfi-flash"; - reg = <0xf8000000 0x01000000>; - bank-width = <2>; - device-width = <2>; - partition@0x0 { - label = "boot loader area"; - reg = <0x00000000 0x00400000>; + soc { + flash: flash@08000000 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "cfi-flash"; + reg = <0x08000000 0x01000000>; + bank-width = <2>; + device-width = <2>; + partition@0x0 { + label = "boot loader area"; + reg = <0x00000000 0x00400000>; + }; + partition@0x400000 { + label = "kernel image"; + reg = <0x00400000 0x00600000>; + }; + partition@0xa00000 { + label = "data"; + reg = <0x00a00000 0x005e0000>; + }; + partition@0xfe0000 { + label = "boot environment"; + reg = <0x00fe0000 0x00020000>; + }; }; - partition@0x400000 { - label = "kernel image"; - reg = <0x00400000 0x00600000>; - }; - partition@0xa00000 { - label = "data"; - reg = <0x00a00000 0x005e0000>; - }; - partition@0xfe0000 { - label = "boot environment"; - reg = <0x00fe0000 0x00020000>; - }; - }; + }; }; diff --git a/arch/xtensa/boot/dts/xtfpga-flash-4m.dtsi b/arch/xtensa/boot/dts/xtfpga-flash-4m.dtsi index 6f9c10d6b689..d1c621ca8be1 100644 --- a/arch/xtensa/boot/dts/xtfpga-flash-4m.dtsi +++ b/arch/xtensa/boot/dts/xtfpga-flash-4m.dtsi @@ -1,18 +1,20 @@ / { - flash: flash@f8000000 { - #address-cells = <1>; - #size-cells = <1>; - compatible = "cfi-flash"; - reg = <0xf8000000 0x00400000>; - bank-width = <2>; - device-width = <2>; - partition@0x0 { - label = "boot loader area"; - reg = <0x00000000 0x003f0000>; + soc { + flash: flash@08000000 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "cfi-flash"; + reg = <0x08000000 0x00400000>; + bank-width = <2>; + device-width = <2>; + partition@0x0 { + label = "boot loader area"; + reg = <0x00000000 0x003f0000>; + }; + partition@0x3f0000 { + label = "boot environment"; + reg = <0x003f0000 0x00010000>; + }; }; - partition@0x3f0000 { - label = "boot environment"; - reg = <0x003f0000 0x00010000>; - }; - }; + }; }; diff --git a/arch/xtensa/boot/dts/xtfpga.dtsi b/arch/xtensa/boot/dts/xtfpga.dtsi index e7370b11348e..dec9178840f6 100644 --- a/arch/xtensa/boot/dts/xtfpga.dtsi +++ b/arch/xtensa/boot/dts/xtfpga.dtsi @@ -42,21 +42,28 @@ }; }; - serial0: serial@fd050020 { - device_type = "serial"; - compatible = "ns16550a"; - no-loopback-test; - reg = <0xfd050020 0x20>; - reg-shift = <2>; - interrupts = <0 1>; /* external irq 0 */ - clocks = <&osc>; - }; + soc { + #address-cells = <1>; + #size-cells = <1>; + compatible = "simple-bus"; + ranges = <0x00000000 0xf0000000 0x10000000>; - enet0: ethoc@fd030000 { - compatible = "opencores,ethoc"; - reg = <0xfd030000 0x4000 0xfd800000 0x4000>; - interrupts = <1 1>; /* external irq 1 */ - local-mac-address = [00 50 c2 13 6f 00]; - clocks = <&osc>; + serial0: serial@0d050020 { + device_type = "serial"; + compatible = "ns16550a"; + no-loopback-test; + reg = <0x0d050020 0x20>; + reg-shift = <2>; + interrupts = <0 1>; /* external irq 0 */ + clocks = <&osc>; + }; + + enet0: ethoc@0d030000 { + compatible = "opencores,ethoc"; + reg = <0x0d030000 0x4000 0x0d800000 0x4000>; + interrupts = <1 1>; /* external irq 1 */ + local-mac-address = [00 50 c2 13 6f 00]; + clocks = <&osc>; + }; }; }; diff --git a/arch/xtensa/include/asm/bootparam.h b/arch/xtensa/include/asm/bootparam.h index 23392c5630ce..892aab399ac8 100644 --- a/arch/xtensa/include/asm/bootparam.h +++ b/arch/xtensa/include/asm/bootparam.h @@ -37,23 +37,14 @@ typedef struct bp_tag { unsigned long data[0]; /* data */ } bp_tag_t; -typedef struct meminfo { +struct bp_meminfo { unsigned long type; unsigned long start; unsigned long end; -} meminfo_t; - -#define SYSMEM_BANKS_MAX 5 +}; #define MEMORY_TYPE_CONVENTIONAL 0x1000 #define MEMORY_TYPE_NONE 0x2000 -typedef struct sysmem_info { - int nr_banks; - meminfo_t bank[SYSMEM_BANKS_MAX]; -} sysmem_info_t; - -extern sysmem_info_t sysmem; - #endif #endif diff --git a/arch/xtensa/include/asm/fixmap.h b/arch/xtensa/include/asm/fixmap.h new file mode 100644 index 000000000000..9f6c33d0428a --- /dev/null +++ b/arch/xtensa/include/asm/fixmap.h @@ -0,0 +1,58 @@ +/* + * fixmap.h: compile-time virtual memory allocation + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 1998 Ingo Molnar + * + * Support of BIGMEM added by Gerhard Wichert, Siemens AG, July 1999 + */ + +#ifndef _ASM_FIXMAP_H +#define _ASM_FIXMAP_H + +#include <asm/pgtable.h> +#ifdef CONFIG_HIGHMEM +#include <linux/threads.h> +#include <asm/kmap_types.h> +#endif + +/* + * Here we define all the compile-time 'special' virtual + * addresses. The point is to have a constant address at + * compile time, but to set the physical address only + * in the boot process. We allocate these special addresses + * from the end of the consistent memory region backwards. + * Also this lets us do fail-safe vmalloc(), we + * can guarantee that these special addresses and + * vmalloc()-ed addresses never overlap. + * + * these 'compile-time allocated' memory buffers are + * fixed-size 4k pages. (or larger if used with an increment + * higher than 1) use fixmap_set(idx,phys) to associate + * physical memory with fixmap indices. + */ +enum fixed_addresses { +#ifdef CONFIG_HIGHMEM + /* reserved pte's for temporary kernel mappings */ + FIX_KMAP_BEGIN, + FIX_KMAP_END = FIX_KMAP_BEGIN + (KM_TYPE_NR * NR_CPUS) - 1, +#endif + __end_of_fixed_addresses +}; + +#define FIXADDR_TOP (VMALLOC_START - PAGE_SIZE) +#define FIXADDR_SIZE (__end_of_fixed_addresses << PAGE_SHIFT) +#define FIXADDR_START ((FIXADDR_TOP - FIXADDR_SIZE) & PMD_MASK) + +#include <asm-generic/fixmap.h> + +#define kmap_get_fixmap_pte(vaddr) \ + pte_offset_kernel( \ + pmd_offset(pud_offset(pgd_offset_k(vaddr), (vaddr)), (vaddr)), \ + (vaddr) \ + ) + +#endif diff --git a/arch/xtensa/include/asm/highmem.h b/arch/xtensa/include/asm/highmem.h index 80be15124697..2653ef5d55f1 100644 --- a/arch/xtensa/include/asm/highmem.h +++ b/arch/xtensa/include/asm/highmem.h @@ -6,11 +6,54 @@ * this archive for more details. * * Copyright (C) 2003 - 2005 Tensilica Inc. + * Copyright (C) 2014 Cadence Design Systems Inc. */ #ifndef _XTENSA_HIGHMEM_H #define _XTENSA_HIGHMEM_H -extern void flush_cache_kmaps(void); +#include <asm/cacheflush.h> +#include <asm/fixmap.h> +#include <asm/kmap_types.h> +#include <asm/pgtable.h> + +#define PKMAP_BASE (FIXADDR_START - PMD_SIZE) +#define LAST_PKMAP PTRS_PER_PTE +#define LAST_PKMAP_MASK (LAST_PKMAP - 1) +#define PKMAP_NR(virt) (((virt) - PKMAP_BASE) >> PAGE_SHIFT) +#define PKMAP_ADDR(nr) (PKMAP_BASE + ((nr) << PAGE_SHIFT)) + +#define kmap_prot PAGE_KERNEL + +extern pte_t *pkmap_page_table; + +void *kmap_high(struct page *page); +void kunmap_high(struct page *page); + +static inline void *kmap(struct page *page) +{ + BUG_ON(in_interrupt()); + if (!PageHighMem(page)) + return page_address(page); + return kmap_high(page); +} + +static inline void kunmap(struct page *page) +{ + BUG_ON(in_interrupt()); + if (!PageHighMem(page)) + return; + kunmap_high(page); +} + +static inline void flush_cache_kmaps(void) +{ + flush_cache_all(); +} + +void *kmap_atomic(struct page *page); +void __kunmap_atomic(void *kvaddr); + +void kmap_init(void); #endif diff --git a/arch/xtensa/include/asm/pgtable.h b/arch/xtensa/include/asm/pgtable.h index 216446295ada..4b0ca35a93b1 100644 --- a/arch/xtensa/include/asm/pgtable.h +++ b/arch/xtensa/include/asm/pgtable.h @@ -310,6 +310,10 @@ set_pte_at(struct mm_struct *mm, unsigned long addr, pte_t *ptep, pte_t pteval) update_pte(ptep, pteval); } +static inline void set_pte(pte_t *ptep, pte_t pteval) +{ + update_pte(ptep, pteval); +} static inline void set_pmd(pmd_t *pmdp, pmd_t pmdval) diff --git a/arch/xtensa/include/asm/sysmem.h b/arch/xtensa/include/asm/sysmem.h new file mode 100644 index 000000000000..c015c5c8e3f7 --- /dev/null +++ b/arch/xtensa/include/asm/sysmem.h @@ -0,0 +1,38 @@ +/* + * sysmem-related prototypes. + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * Copyright (C) 2014 Cadence Design Systems Inc. + */ + +#ifndef _XTENSA_SYSMEM_H +#define _XTENSA_SYSMEM_H + +#define SYSMEM_BANKS_MAX 31 + +struct meminfo { + unsigned long start; + unsigned long end; +}; + +/* + * Bank array is sorted by .start. + * Banks don't overlap and there's at least one page gap + * between adjacent bank entries. + */ +struct sysmem_info { + int nr_banks; + struct meminfo bank[SYSMEM_BANKS_MAX]; +}; + +extern struct sysmem_info sysmem; + +int add_sysmem_bank(unsigned long start, unsigned long end); +int mem_reserve(unsigned long, unsigned long, int); +void bootmem_init(void); +void zones_init(void); + +#endif /* _XTENSA_SYSMEM_H */ diff --git a/arch/xtensa/include/asm/tlbflush.h b/arch/xtensa/include/asm/tlbflush.h index fc34274ce41b..06875feb27c2 100644 --- a/arch/xtensa/include/asm/tlbflush.h +++ b/arch/xtensa/include/asm/tlbflush.h @@ -36,6 +36,7 @@ void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long page); void local_flush_tlb_range(struct vm_area_struct *vma, unsigned long start, unsigned long end); +void local_flush_tlb_kernel_range(unsigned long start, unsigned long end); #ifdef CONFIG_SMP @@ -44,12 +45,7 @@ void flush_tlb_mm(struct mm_struct *); void flush_tlb_page(struct vm_area_struct *, unsigned long); void flush_tlb_range(struct vm_area_struct *, unsigned long, unsigned long); - -static inline void flush_tlb_kernel_range(unsigned long start, - unsigned long end) -{ - flush_tlb_all(); -} +void flush_tlb_kernel_range(unsigned long start, unsigned long end); #else /* !CONFIG_SMP */ @@ -58,7 +54,8 @@ static inline void flush_tlb_kernel_range(unsigned long start, #define flush_tlb_page(vma, page) local_flush_tlb_page(vma, page) #define flush_tlb_range(vma, vmaddr, end) local_flush_tlb_range(vma, vmaddr, \ end) -#define flush_tlb_kernel_range(start, end) local_flush_tlb_all() +#define flush_tlb_kernel_range(start, end) local_flush_tlb_kernel_range(start, \ + end) #endif /* CONFIG_SMP */ diff --git a/arch/xtensa/kernel/setup.c b/arch/xtensa/kernel/setup.c index 84fe931bb60e..9757bb74e532 100644 --- a/arch/xtensa/kernel/setup.c +++ b/arch/xtensa/kernel/setup.c @@ -50,6 +50,7 @@ #include <asm/param.h> #include <asm/traps.h> #include <asm/smp.h> +#include <asm/sysmem.h> #include <platform/hardware.h> @@ -88,12 +89,6 @@ static char __initdata command_line[COMMAND_LINE_SIZE]; static char default_command_line[COMMAND_LINE_SIZE] __initdata = CONFIG_CMDLINE; #endif -sysmem_info_t __initdata sysmem; - -extern int mem_reserve(unsigned long, unsigned long, int); -extern void bootmem_init(void); -extern void zones_init(void); - /* * Boot parameter parsing. * @@ -113,31 +108,14 @@ typedef struct tagtable { /* parse current tag */ -static int __init add_sysmem_bank(unsigned long type, unsigned long start, - unsigned long end) -{ - if (sysmem.nr_banks >= SYSMEM_BANKS_MAX) { - printk(KERN_WARNING - "Ignoring memory bank 0x%08lx size %ldKB\n", - start, end - start); - return -EINVAL; - } - sysmem.bank[sysmem.nr_banks].type = type; - sysmem.bank[sysmem.nr_banks].start = PAGE_ALIGN(start); - sysmem.bank[sysmem.nr_banks].end = end & PAGE_MASK; - sysmem.nr_banks++; - - return 0; -} - static int __init parse_tag_mem(const bp_tag_t *tag) { - meminfo_t *mi = (meminfo_t *)(tag->data); + struct bp_meminfo *mi = (struct bp_meminfo *)(tag->data); if (mi->type != MEMORY_TYPE_CONVENTIONAL) return -1; - return add_sysmem_bank(mi->type, mi->start, mi->end); + return add_sysmem_bank(mi->start, mi->end); } __tagtable(BP_TAG_MEMORY, parse_tag_mem); @@ -146,8 +124,8 @@ __tagtable(BP_TAG_MEMORY, parse_tag_mem); static int __init parse_tag_initrd(const bp_tag_t* tag) { - meminfo_t* mi; - mi = (meminfo_t*)(tag->data); + struct bp_meminfo *mi = (struct bp_meminfo *)(tag->data); + initrd_start = (unsigned long)__va(mi->start); initrd_end = (unsigned long)__va(mi->end); @@ -255,7 +233,7 @@ void __init early_init_dt_add_memory_arch(u64 base, u64 size) return; size &= PAGE_MASK; - add_sysmem_bank(MEMORY_TYPE_CONVENTIONAL, base, base + size); + add_sysmem_bank(base, base + size); } void * __init early_init_dt_alloc_memory_arch(u64 size, u64 align) @@ -292,8 +270,6 @@ device_initcall(xtensa_device_probe); void __init init_arch(bp_tag_t *bp_start) { - sysmem.nr_banks = 0; - /* Parse boot parameters */ if (bp_start) @@ -304,10 +280,9 @@ void __init init_arch(bp_tag_t *bp_start) #endif if (sysmem.nr_banks == 0) { - sysmem.nr_banks = 1; - sysmem.bank[0].start = PLATFORM_DEFAULT_MEM_START; - sysmem.bank[0].end = PLATFORM_DEFAULT_MEM_START - + PLATFORM_DEFAULT_MEM_SIZE; + add_sysmem_bank(PLATFORM_DEFAULT_MEM_START, + PLATFORM_DEFAULT_MEM_START + + PLATFORM_DEFAULT_MEM_SIZE); } #ifdef CONFIG_CMDLINE_BOOL @@ -487,7 +462,7 @@ void __init setup_arch(char **cmdline_p) #ifdef CONFIG_BLK_DEV_INITRD if (initrd_start < initrd_end) { initrd_is_mapped = mem_reserve(__pa(initrd_start), - __pa(initrd_end), 0); + __pa(initrd_end), 0) == 0; initrd_below_start_ok = 1; } else { initrd_start = 0; @@ -532,6 +507,7 @@ void __init setup_arch(char **cmdline_p) __pa(&_Level6InterruptVector_text_end), 0); #endif + parse_early_param(); bootmem_init(); unflatten_and_copy_device_tree(); diff --git a/arch/xtensa/kernel/smp.c b/arch/xtensa/kernel/smp.c index aa8bd8717927..40b5a3771fb0 100644 --- a/arch/xtensa/kernel/smp.c +++ b/arch/xtensa/kernel/smp.c @@ -496,6 +496,21 @@ void flush_tlb_range(struct vm_area_struct *vma, on_each_cpu(ipi_flush_tlb_range, &fd, 1); } +static void ipi_flush_tlb_kernel_range(void *arg) +{ + struct flush_data *fd = arg; + local_flush_tlb_kernel_range(fd->addr1, fd->addr2); +} + +void flush_tlb_kernel_range(unsigned long start, unsigned long end) +{ + struct flush_data fd = { + .addr1 = start, + .addr2 = end, + }; + on_each_cpu(ipi_flush_tlb_kernel_range, &fd, 1); +} + /* Cache flush functions */ static void ipi_flush_cache_all(void *arg) diff --git a/arch/xtensa/kernel/xtensa_ksyms.c b/arch/xtensa/kernel/xtensa_ksyms.c index 80b33ed51f31..4d2872fd9bb5 100644 --- a/arch/xtensa/kernel/xtensa_ksyms.c +++ b/arch/xtensa/kernel/xtensa_ksyms.c @@ -20,6 +20,7 @@ #include <linux/in6.h> #include <asm/uaccess.h> +#include <asm/cacheflush.h> #include <asm/checksum.h> #include <asm/dma.h> #include <asm/io.h> @@ -105,6 +106,7 @@ EXPORT_SYMBOL(csum_partial_copy_generic); * Architecture-specific symbols */ EXPORT_SYMBOL(__xtensa_copy_user); +EXPORT_SYMBOL(__invalidate_icache_range); /* * Kernel hacking ... @@ -127,3 +129,8 @@ EXPORT_SYMBOL(common_exception_return); #ifdef CONFIG_FUNCTION_TRACER EXPORT_SYMBOL(_mcount); #endif + +EXPORT_SYMBOL(__invalidate_dcache_range); +#if XCHAL_DCACHE_IS_WRITEBACK +EXPORT_SYMBOL(__flush_dcache_range); +#endif diff --git a/arch/xtensa/mm/Makefile b/arch/xtensa/mm/Makefile index f0b646d2f843..f54f78e24d7b 100644 --- a/arch/xtensa/mm/Makefile +++ b/arch/xtensa/mm/Makefile @@ -4,3 +4,4 @@ obj-y := init.o cache.o misc.o obj-$(CONFIG_MMU) += fault.o mmu.o tlb.o +obj-$(CONFIG_HIGHMEM) += highmem.o diff --git a/arch/xtensa/mm/cache.c b/arch/xtensa/mm/cache.c index ba4c47f291b1..63cbb867dadd 100644 --- a/arch/xtensa/mm/cache.c +++ b/arch/xtensa/mm/cache.c @@ -59,6 +59,10 @@ * */ +#if (DCACHE_WAY_SIZE > PAGE_SIZE) && defined(CONFIG_HIGHMEM) +#error "HIGHMEM is not supported on cores with aliasing cache." +#endif + #if (DCACHE_WAY_SIZE > PAGE_SIZE) && XCHAL_DCACHE_IS_WRITEBACK /* @@ -179,10 +183,11 @@ update_mmu_cache(struct vm_area_struct * vma, unsigned long addr, pte_t *ptep) #else if (!PageReserved(page) && !test_bit(PG_arch_1, &page->flags) && (vma->vm_flags & VM_EXEC) != 0) { - unsigned long paddr = (unsigned long) page_address(page); + unsigned long paddr = (unsigned long)kmap_atomic(page); __flush_dcache_page(paddr); __invalidate_icache_page(paddr); set_bit(PG_arch_1, &page->flags); + kunmap_atomic((void *)paddr); } #endif } diff --git a/arch/xtensa/mm/highmem.c b/arch/xtensa/mm/highmem.c new file mode 100644 index 000000000000..17a8c0d6fd17 --- /dev/null +++ b/arch/xtensa/mm/highmem.c @@ -0,0 +1,72 @@ +/* + * High memory support for Xtensa architecture + * + * This file is subject to the terms and conditions of the GNU General + * Public License. See the file "COPYING" in the main directory of + * this archive for more details. + * + * Copyright (C) 2014 Cadence Design Systems Inc. + */ + +#include <linux/export.h> +#include <linux/highmem.h> +#include <asm/tlbflush.h> + +static pte_t *kmap_pte; + +void *kmap_atomic(struct page *page) +{ + enum fixed_addresses idx; + unsigned long vaddr; + int type; + + pagefault_disable(); + if (!PageHighMem(page)) + return page_address(page); + + type = kmap_atomic_idx_push(); + idx = type + KM_TYPE_NR * smp_processor_id(); + vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx); +#ifdef CONFIG_DEBUG_HIGHMEM + BUG_ON(!pte_none(*(kmap_pte - idx))); +#endif + set_pte(kmap_pte - idx, mk_pte(page, PAGE_KERNEL_EXEC)); + + return (void *)vaddr; +} +EXPORT_SYMBOL(kmap_atomic); + +void __kunmap_atomic(void *kvaddr) +{ + int idx, type; + + if (kvaddr >= (void *)FIXADDR_START && + kvaddr < (void *)FIXADDR_TOP) { + type = kmap_atomic_idx(); + idx = type + KM_TYPE_NR * smp_processor_id(); + + /* + * Force other mappings to Oops if they'll try to access this + * pte without first remap it. Keeping stale mappings around + * is a bad idea also, in case the page changes cacheability + * attributes or becomes a protected page in a hypervisor. + */ + pte_clear(&init_mm, kvaddr, kmap_pte - idx); + local_flush_tlb_kernel_range((unsigned long)kvaddr, + (unsigned long)kvaddr + PAGE_SIZE); + + kmap_atomic_idx_pop(); + } + + pagefault_enable(); +} +EXPORT_SYMBOL(__kunmap_atomic); + +void __init kmap_init(void) +{ + unsigned long kmap_vstart; + + /* cache the first kmap pte */ + kmap_vstart = __fix_to_virt(FIX_KMAP_BEGIN); + kmap_pte = kmap_get_fixmap_pte(kmap_vstart); +} diff --git a/arch/xtensa/mm/init.c b/arch/xtensa/mm/init.c index aff108df92d3..4224256bb215 100644 --- a/arch/xtensa/mm/init.c +++ b/arch/xtensa/mm/init.c @@ -8,6 +8,7 @@ * for more details. * * Copyright (C) 2001 - 2005 Tensilica Inc. + * Copyright (C) 2014 Cadence Design Systems Inc. * * Chris Zankel <chris@zankel.net> * Joe Taylor <joe@tensilica.com, joetylr@yahoo.com> @@ -19,6 +20,7 @@ #include <linux/errno.h> #include <linux/bootmem.h> #include <linux/gfp.h> +#include <linux/highmem.h> #include <linux/swap.h> #include <linux/mman.h> #include <linux/nodemask.h> @@ -27,11 +29,133 @@ #include <asm/bootparam.h> #include <asm/page.h> #include <asm/sections.h> +#include <asm/sysmem.h> + +struct sysmem_info sysmem __initdata; + +static void __init sysmem_dump(void) +{ + unsigned i; + + pr_debug("Sysmem:\n"); + for (i = 0; i < sysmem.nr_banks; ++i) + pr_debug(" 0x%08lx - 0x%08lx (%ldK)\n", + sysmem.bank[i].start, sysmem.bank[i].end, + (sysmem.bank[i].end - sysmem.bank[i].start) >> 10); +} + +/* + * Find bank with maximal .start such that bank.start <= start + */ +static inline struct meminfo * __init find_bank(unsigned long start) +{ + unsigned i; + struct meminfo *it = NULL; + + for (i = 0; i < sysmem.nr_banks; ++i) + if (sysmem.bank[i].start <= start) + it = sysmem.bank + i; + else + break; + return it; +} + +/* + * Move all memory banks starting at 'from' to a new place at 'to', + * adjust nr_banks accordingly. + * Both 'from' and 'to' must be inside the sysmem.bank. + * + * Returns: 0 (success), -ENOMEM (not enough space in the sysmem.bank). + */ +static int __init move_banks(struct meminfo *to, struct meminfo *from) +{ + unsigned n = sysmem.nr_banks - (from - sysmem.bank); + + if (to > from && to - from + sysmem.nr_banks > SYSMEM_BANKS_MAX) + return -ENOMEM; + if (to != from) + memmove(to, from, n * sizeof(struct meminfo)); + sysmem.nr_banks += to - from; + return 0; +} + +/* + * Add new bank to sysmem. Resulting sysmem is the union of bytes of the + * original sysmem and the new bank. + * + * Returns: 0 (success), < 0 (error) + */ +int __init add_sysmem_bank(unsigned long start, unsigned long end) +{ + unsigned i; + struct meminfo *it = NULL; + unsigned long sz; + unsigned long bank_sz = 0; + + if (start == end || + (start < end) != (PAGE_ALIGN(start) < (end & PAGE_MASK))) { + pr_warn("Ignoring small memory bank 0x%08lx size: %ld bytes\n", + start, end - start); + return -EINVAL; + } + + start = PAGE_ALIGN(start); + end &= PAGE_MASK; + sz = end - start; + + it = find_bank(start); + + if (it) + bank_sz = it->end - it->start; + + if (it && bank_sz >= start - it->start) { + if (end - it->start > bank_sz) + it->end = end; + else + return 0; + } else { + if (!it) + it = sysmem.bank; + else + ++it; + + if (it - sysmem.bank < sysmem.nr_banks && + it->start - start <= sz) { + it->start = start; + if (it->end - it->start < sz) + it->end = end; + else + return 0; + } else { + if (move_banks(it + 1, it) < 0) { + pr_warn("Ignoring memory bank 0x%08lx size %ld bytes\n", + start, end - start); + return -EINVAL; + } + it->start = start; + it->end = end; + return 0; + } + } + sz = it->end - it->start; + for (i = it + 1 - sysmem.bank; i < sysmem.nr_banks; ++i) + if (sysmem.bank[i].start - it->start <= sz) { + if (sz < sysmem.bank[i].end - it->start) + it->end = sysmem.bank[i].end; + } else { + break; + } + + move_banks(it + 1, sysmem.bank + i); + return 0; +} /* * mem_reserve(start, end, must_exist) * * Reserve some memory from the memory pool. + * If must_exist is set and a part of the region being reserved does not exist + * memory map is not altered. * * Parameters: * start Start of region, @@ -39,53 +163,69 @@ * must_exist Must exist in memory pool. * * Returns: - * 0 (memory area couldn't be mapped) - * -1 (success) + * 0 (success) + * < 0 (error) */ int __init mem_reserve(unsigned long start, unsigned long end, int must_exist) { - int i; - - if (start == end) - return 0; + struct meminfo *it; + struct meminfo *rm = NULL; + unsigned long sz; + unsigned long bank_sz = 0; start = start & PAGE_MASK; end = PAGE_ALIGN(end); + sz = end - start; + if (!sz) + return -EINVAL; - for (i = 0; i < sysmem.nr_banks; i++) - if (start < sysmem.bank[i].end - && end >= sysmem.bank[i].start) - break; + it = find_bank(start); + + if (it) + bank_sz = it->end - it->start; - if (i == sysmem.nr_banks) { - if (must_exist) - printk (KERN_WARNING "mem_reserve: [0x%0lx, 0x%0lx) " - "not in any region!\n", start, end); - return 0; + if ((!it || end - it->start > bank_sz) && must_exist) { + pr_warn("mem_reserve: [0x%0lx, 0x%0lx) not in any region!\n", + start, end); + return -EINVAL; } - if (start > sysmem.bank[i].start) { - if (end < sysmem.bank[i].end) { - /* split entry */ - if (sysmem.nr_banks >= SYSMEM_BANKS_MAX) - panic("meminfo overflow\n"); - sysmem.bank[sysmem.nr_banks].start = end; - sysmem.bank[sysmem.nr_banks].end = sysmem.bank[i].end; - sysmem.nr_banks++; + if (it && start - it->start < bank_sz) { + if (start == it->start) { + if (end - it->start < bank_sz) { + it->start = end; + return 0; + } else { + rm = it; + } + } else { + it->end = start; + if (end - it->start < bank_sz) + return add_sysmem_bank(end, + it->start + bank_sz); + ++it; } - sysmem.bank[i].end = start; + } - } else if (end < sysmem.bank[i].end) { - sysmem.bank[i].start = end; + if (!it) + it = sysmem.bank; - } else { - /* remove entry */ - sysmem.nr_banks--; - sysmem.bank[i].start = sysmem.bank[sysmem.nr_banks].start; - sysmem.bank[i].end = sysmem.bank[sysmem.nr_banks].end; + for (; it < sysmem.bank + sysmem.nr_banks; ++it) { + if (it->end - start <= sz) { + if (!rm) + rm = it; + } else { + if (it->start - start < sz) + it->start = end; + break; + } } - return -1; + + if (rm) + move_banks(rm, it); + + return 0; } @@ -99,6 +239,7 @@ void __init bootmem_init(void) unsigned long bootmap_start, bootmap_size; int i; + sysmem_dump(); max_low_pfn = max_pfn = 0; min_low_pfn = ~0; @@ -156,19 +297,13 @@ void __init bootmem_init(void) void __init zones_init(void) { - unsigned long zones_size[MAX_NR_ZONES]; - int i; - /* All pages are DMA-able, so we put them all in the DMA zone. */ - - zones_size[ZONE_DMA] = max_low_pfn - ARCH_PFN_OFFSET; - for (i = 1; i < MAX_NR_ZONES; i++) - zones_size[i] = 0; - + unsigned long zones_size[MAX_NR_ZONES] = { + [ZONE_DMA] = max_low_pfn - ARCH_PFN_OFFSET, #ifdef CONFIG_HIGHMEM - zones_size[ZONE_HIGHMEM] = max_pfn - max_low_pfn; + [ZONE_HIGHMEM] = max_pfn - max_low_pfn, #endif - + }; free_area_init_node(0, zones_size, ARCH_PFN_OFFSET, NULL); } @@ -178,16 +313,38 @@ void __init zones_init(void) void __init mem_init(void) { - max_mapnr = max_low_pfn - ARCH_PFN_OFFSET; - high_memory = (void *) __va(max_low_pfn << PAGE_SHIFT); - #ifdef CONFIG_HIGHMEM -#error HIGHGMEM not implemented in init.c + unsigned long tmp; + + reset_all_zones_managed_pages(); + for (tmp = max_low_pfn; tmp < max_pfn; tmp++) + free_highmem_page(pfn_to_page(tmp)); #endif + max_mapnr = max_pfn - ARCH_PFN_OFFSET; + high_memory = (void *)__va(max_low_pfn << PAGE_SHIFT); + free_all_bootmem(); mem_init_print_info(NULL); + pr_info("virtual kernel memory layout:\n" +#ifdef CONFIG_HIGHMEM + " pkmap : 0x%08lx - 0x%08lx (%5lu kB)\n" + " fixmap : 0x%08lx - 0x%08lx (%5lu kB)\n" +#endif + " vmalloc : 0x%08x - 0x%08x (%5u MB)\n" + " lowmem : 0x%08x - 0x%08lx (%5lu MB)\n", +#ifdef CONFIG_HIGHMEM + PKMAP_BASE, PKMAP_BASE + LAST_PKMAP * PAGE_SIZE, + (LAST_PKMAP*PAGE_SIZE) >> 10, + FIXADDR_START, FIXADDR_TOP, + (FIXADDR_TOP - FIXADDR_START) >> 10, +#endif + VMALLOC_START, VMALLOC_END, + (VMALLOC_END - VMALLOC_START) >> 20, + PAGE_OFFSET, PAGE_OFFSET + + (max_low_pfn - min_low_pfn) * PAGE_SIZE, + ((max_low_pfn - min_low_pfn) * PAGE_SIZE) >> 20); } #ifdef CONFIG_BLK_DEV_INITRD @@ -204,3 +361,53 @@ void free_initmem(void) { free_initmem_default(-1); } + +static void __init parse_memmap_one(char *p) +{ + char *oldp; + unsigned long start_at, mem_size; + + if (!p) + return; + + oldp = p; + mem_size = memparse(p, &p); + if (p == oldp) + return; + + switch (*p) { + case '@': + start_at = memparse(p + 1, &p); + add_sysmem_bank(start_at, start_at + mem_size); + break; + + case '$': + start_at = memparse(p + 1, &p); + mem_reserve(start_at, start_at + mem_size, 0); + break; + + case 0: + mem_reserve(mem_size, 0, 0); + break; + + default: + pr_warn("Unrecognized memmap syntax: %s\n", p); + break; + } +} + +static int __init parse_memmap_opt(char *str) +{ + while (str) { + char *k = strchr(str, ','); + + if (k) + *k++ = 0; + + parse_memmap_one(str); + str = k; + } + + return 0; +} +early_param("memmap", parse_memmap_opt); diff --git a/arch/xtensa/mm/mmu.c b/arch/xtensa/mm/mmu.c index 861203e958da..3429b483d9f8 100644 --- a/arch/xtensa/mm/mmu.c +++ b/arch/xtensa/mm/mmu.c @@ -3,6 +3,7 @@ * * Extracted from init.c */ +#include <linux/bootmem.h> #include <linux/percpu.h> #include <linux/init.h> #include <linux/string.h> @@ -16,9 +17,44 @@ #include <asm/initialize_mmu.h> #include <asm/io.h> +#if defined(CONFIG_HIGHMEM) +static void * __init init_pmd(unsigned long vaddr) +{ + pgd_t *pgd = pgd_offset_k(vaddr); + pmd_t *pmd = pmd_offset(pgd, vaddr); + + if (pmd_none(*pmd)) { + unsigned i; + pte_t *pte = alloc_bootmem_low_pages(PAGE_SIZE); + + for (i = 0; i < 1024; i++) + pte_clear(NULL, 0, pte + i); + + set_pmd(pmd, __pmd(((unsigned long)pte) & PAGE_MASK)); + BUG_ON(pte != pte_offset_kernel(pmd, 0)); + pr_debug("%s: vaddr: 0x%08lx, pmd: 0x%p, pte: 0x%p\n", + __func__, vaddr, pmd, pte); + return pte; + } else { + return pte_offset_kernel(pmd, 0); + } +} + +static void __init fixedrange_init(void) +{ + BUILD_BUG_ON(FIXADDR_SIZE > PMD_SIZE); + init_pmd(__fix_to_virt(__end_of_fixed_addresses - 1) & PMD_MASK); +} +#endif + void __init paging_init(void) { memset(swapper_pg_dir, 0, PAGE_SIZE); +#ifdef CONFIG_HIGHMEM + fixedrange_init(); + pkmap_page_table = init_pmd(PKMAP_BASE); + kmap_init(); +#endif } /* diff --git a/arch/xtensa/mm/tlb.c b/arch/xtensa/mm/tlb.c index ade623826788..5ece856c5725 100644 --- a/arch/xtensa/mm/tlb.c +++ b/arch/xtensa/mm/tlb.c @@ -149,6 +149,21 @@ void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long page) local_irq_restore(flags); } +void local_flush_tlb_kernel_range(unsigned long start, unsigned long end) +{ + if (end > start && start >= TASK_SIZE && end <= PAGE_OFFSET && + end - start < _TLB_ENTRIES << PAGE_SHIFT) { + start &= PAGE_MASK; + while (start < end) { + invalidate_itlb_mapping(start); + invalidate_dtlb_mapping(start); + start += PAGE_SIZE; + } + } else { + local_flush_tlb_all(); + } +} + #ifdef CONFIG_DEBUG_TLB_SANITY static unsigned get_pte_for_vaddr(unsigned vaddr) diff --git a/arch/xtensa/platforms/iss/Makefile b/arch/xtensa/platforms/iss/Makefile index d2369b799c50..b3e89291cfba 100644 --- a/arch/xtensa/platforms/iss/Makefile +++ b/arch/xtensa/platforms/iss/Makefile @@ -4,6 +4,7 @@ # "prom monitor" library routines under Linux. # -obj-y = console.o setup.o +obj-y = setup.o +obj-$(CONFIG_TTY) += console.o obj-$(CONFIG_NET) += network.o obj-$(CONFIG_BLK_DEV_SIMDISK) += simdisk.o diff --git a/arch/xtensa/platforms/xt2000/setup.c b/arch/xtensa/platforms/xt2000/setup.c index f9bc87966290..b90555cb8089 100644 --- a/arch/xtensa/platforms/xt2000/setup.c +++ b/arch/xtensa/platforms/xt2000/setup.c @@ -92,18 +92,8 @@ void __init platform_setup(char** cmdline) /* early initialization */ -extern sysmem_info_t __initdata sysmem; - -void platform_init(bp_tag_t* first) +void __init platform_init(bp_tag_t *first) { - /* Set default memory block if not provided by the bootloader. */ - - if (sysmem.nr_banks == 0) { - sysmem.nr_banks = 1; - sysmem.bank[0].start = PLATFORM_DEFAULT_MEM_START; - sysmem.bank[0].end = PLATFORM_DEFAULT_MEM_START - + PLATFORM_DEFAULT_MEM_SIZE; - } } /* Heartbeat. Let the LED blink. */ diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c index c29c2c3ec0ad..b06f5f55ada9 100644 --- a/drivers/acpi/acpi_processor.c +++ b/drivers/acpi/acpi_processor.c @@ -170,6 +170,9 @@ static int acpi_processor_hotadd_init(struct acpi_processor *pr) acpi_status status; int ret; + if (pr->apic_id == -1) + return -ENODEV; + status = acpi_evaluate_integer(pr->handle, "_STA", NULL, &sta); if (ACPI_FAILURE(status) || !(sta & ACPI_STA_DEVICE_PRESENT)) return -ENODEV; @@ -260,10 +263,8 @@ static int acpi_processor_get_info(struct acpi_device *device) } apic_id = acpi_get_apicid(pr->handle, device_declaration, pr->acpi_id); - if (apic_id < 0) { + if (apic_id < 0) acpi_handle_debug(pr->handle, "failed to get CPU APIC ID.\n"); - return -ENODEV; - } pr->apic_id = apic_id; cpu_index = acpi_map_cpuid(pr->apic_id, pr->acpi_id); diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index d7d32c28829b..ad11ba4a412d 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -206,13 +206,13 @@ unlock: spin_unlock_irqrestore(&ec->lock, flags); } -static int acpi_ec_sync_query(struct acpi_ec *ec); +static int acpi_ec_sync_query(struct acpi_ec *ec, u8 *data); static int ec_check_sci_sync(struct acpi_ec *ec, u8 state) { if (state & ACPI_EC_FLAG_SCI) { if (!test_and_set_bit(EC_FLAGS_QUERY_PENDING, &ec->flags)) - return acpi_ec_sync_query(ec); + return acpi_ec_sync_query(ec, NULL); } return 0; } @@ -443,10 +443,8 @@ acpi_handle ec_get_handle(void) EXPORT_SYMBOL(ec_get_handle); -static int acpi_ec_query_unlocked(struct acpi_ec *ec, u8 *data); - /* - * Clears stale _Q events that might have accumulated in the EC. + * Process _Q events that might have accumulated in the EC. * Run with locked ec mutex. */ static void acpi_ec_clear(struct acpi_ec *ec) @@ -455,7 +453,7 @@ static void acpi_ec_clear(struct acpi_ec *ec) u8 value = 0; for (i = 0; i < ACPI_EC_CLEAR_MAX; i++) { - status = acpi_ec_query_unlocked(ec, &value); + status = acpi_ec_sync_query(ec, &value); if (status || !value) break; } @@ -582,13 +580,18 @@ static void acpi_ec_run(void *cxt) kfree(handler); } -static int acpi_ec_sync_query(struct acpi_ec *ec) +static int acpi_ec_sync_query(struct acpi_ec *ec, u8 *data) { u8 value = 0; int status; struct acpi_ec_query_handler *handler, *copy; - if ((status = acpi_ec_query_unlocked(ec, &value))) + + status = acpi_ec_query_unlocked(ec, &value); + if (data) + *data = value; + if (status) return status; + list_for_each_entry(handler, &ec->list, node) { if (value == handler->query_bit) { /* have custom handler for this bit */ @@ -612,7 +615,7 @@ static void acpi_ec_gpe_query(void *ec_cxt) if (!ec) return; mutex_lock(&ec->mutex); - acpi_ec_sync_query(ec); + acpi_ec_sync_query(ec, NULL); mutex_unlock(&ec->mutex); } diff --git a/drivers/base/dd.c b/drivers/base/dd.c index 8986b9f22781..62ec61e8f84a 100644 --- a/drivers/base/dd.c +++ b/drivers/base/dd.c @@ -52,6 +52,7 @@ static DEFINE_MUTEX(deferred_probe_mutex); static LIST_HEAD(deferred_probe_pending_list); static LIST_HEAD(deferred_probe_active_list); static struct workqueue_struct *deferred_wq; +static atomic_t deferred_trigger_count = ATOMIC_INIT(0); /** * deferred_probe_work_func() - Retry probing devices in the active list. @@ -135,6 +136,17 @@ static bool driver_deferred_probe_enable = false; * This functions moves all devices from the pending list to the active * list and schedules the deferred probe workqueue to process them. It * should be called anytime a driver is successfully bound to a device. + * + * Note, there is a race condition in multi-threaded probe. In the case where + * more than one device is probing at the same time, it is possible for one + * probe to complete successfully while another is about to defer. If the second + * depends on the first, then it will get put on the pending list after the + * trigger event has already occured and will be stuck there. + * + * The atomic 'deferred_trigger_count' is used to determine if a successful + * trigger has occurred in the midst of probing a driver. If the trigger count + * changes in the midst of a probe, then deferred processing should be triggered + * again. */ static void driver_deferred_probe_trigger(void) { @@ -147,6 +159,7 @@ static void driver_deferred_probe_trigger(void) * into the active list so they can be retried by the workqueue */ mutex_lock(&deferred_probe_mutex); + atomic_inc(&deferred_trigger_count); list_splice_tail_init(&deferred_probe_pending_list, &deferred_probe_active_list); mutex_unlock(&deferred_probe_mutex); @@ -265,6 +278,7 @@ static DECLARE_WAIT_QUEUE_HEAD(probe_waitqueue); static int really_probe(struct device *dev, struct device_driver *drv) { int ret = 0; + int local_trigger_count = atomic_read(&deferred_trigger_count); atomic_inc(&probe_count); pr_debug("bus: '%s': %s: probing driver %s with device %s\n", @@ -310,6 +324,9 @@ probe_failed: /* Driver requested deferred probing */ dev_info(dev, "Driver %s requests probe deferral\n", drv->name); driver_deferred_probe_add(dev); + /* Did a trigger occur while probing? Need to re-trigger if yes */ + if (local_trigger_count != atomic_read(&deferred_trigger_count)) + driver_deferred_probe_trigger(); } else if (ret != -ENODEV && ret != -ENXIO) { /* driver matched but the probe failed */ printk(KERN_WARNING diff --git a/drivers/base/platform.c b/drivers/base/platform.c index e714709704e4..5b47210889e0 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -13,6 +13,7 @@ #include <linux/string.h> #include <linux/platform_device.h> #include <linux/of_device.h> +#include <linux/of_irq.h> #include <linux/module.h> #include <linux/init.h> #include <linux/dma-mapping.h> @@ -87,7 +88,11 @@ int platform_get_irq(struct platform_device *dev, unsigned int num) return -ENXIO; return dev->archdata.irqs[num]; #else - struct resource *r = platform_get_resource(dev, IORESOURCE_IRQ, num); + struct resource *r; + if (IS_ENABLED(CONFIG_OF_IRQ) && dev->dev.of_node) + return of_irq_get(dev->dev.of_node, num); + + r = platform_get_resource(dev, IORESOURCE_IRQ, num); return r ? r->start : -ENXIO; #endif diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c index 8f5565bf34cd..fa9bb742df6e 100644 --- a/drivers/block/floppy.c +++ b/drivers/block/floppy.c @@ -3067,7 +3067,10 @@ static int raw_cmd_copyout(int cmd, void __user *param, int ret; while (ptr) { - ret = copy_to_user(param, ptr, sizeof(*ptr)); + struct floppy_raw_cmd cmd = *ptr; + cmd.next = NULL; + cmd.kernel_data = NULL; + ret = copy_to_user(param, &cmd, sizeof(cmd)); if (ret) return -EFAULT; param += sizeof(struct floppy_raw_cmd); @@ -3121,10 +3124,11 @@ loop: return -ENOMEM; *rcmd = ptr; ret = copy_from_user(ptr, param, sizeof(*ptr)); - if (ret) - return -EFAULT; ptr->next = NULL; ptr->buffer_length = 0; + ptr->kernel_data = NULL; + if (ret) + return -EFAULT; param += sizeof(struct floppy_raw_cmd); if (ptr->cmd_count > 33) /* the command may now also take up the space @@ -3140,7 +3144,6 @@ loop: for (i = 0; i < 16; i++) ptr->reply[i] = 0; ptr->resultcode = 0; - ptr->kernel_data = NULL; if (ptr->flags & (FD_RAW_READ | FD_RAW_WRITE)) { if (ptr->length <= 0) diff --git a/drivers/clk/versatile/clk-vexpress-osc.c b/drivers/clk/versatile/clk-vexpress-osc.c index a535c7bf8574..422391242b39 100644 --- a/drivers/clk/versatile/clk-vexpress-osc.c +++ b/drivers/clk/versatile/clk-vexpress-osc.c @@ -100,6 +100,8 @@ void __init vexpress_osc_of_setup(struct device_node *node) struct clk *clk; u32 range[2]; + vexpress_sysreg_of_early_init(); + osc = kzalloc(sizeof(*osc), GFP_KERNEL); if (!osc) return; diff --git a/drivers/clocksource/arm_arch_timer.c b/drivers/clocksource/arm_arch_timer.c index 57e823c44d2a..5163ec13429d 100644 --- a/drivers/clocksource/arm_arch_timer.c +++ b/drivers/clocksource/arm_arch_timer.c @@ -66,6 +66,7 @@ static int arch_timer_ppi[MAX_TIMER_PPI]; static struct clock_event_device __percpu *arch_timer_evt; static bool arch_timer_use_virtual = true; +static bool arch_timer_c3stop; static bool arch_timer_mem_use_virtual; /* @@ -263,7 +264,8 @@ static void __arch_timer_setup(unsigned type, clk->features = CLOCK_EVT_FEAT_ONESHOT; if (type == ARCH_CP15_TIMER) { - clk->features |= CLOCK_EVT_FEAT_C3STOP; + if (arch_timer_c3stop) + clk->features |= CLOCK_EVT_FEAT_C3STOP; clk->name = "arch_sys_timer"; clk->rating = 450; clk->cpumask = cpumask_of(smp_processor_id()); @@ -665,6 +667,8 @@ static void __init arch_timer_init(struct device_node *np) } } + arch_timer_c3stop = !of_property_read_bool(np, "always-on"); + arch_timer_register(); arch_timer_common_init(); } diff --git a/drivers/clocksource/zevio-timer.c b/drivers/clocksource/zevio-timer.c index ca81809d159d..7ce442148c3f 100644 --- a/drivers/clocksource/zevio-timer.c +++ b/drivers/clocksource/zevio-timer.c @@ -212,4 +212,9 @@ error_free: return ret; } -CLOCKSOURCE_OF_DECLARE(zevio_timer, "lsi,zevio-timer", zevio_timer_add); +static void __init zevio_timer_init(struct device_node *node) +{ + BUG_ON(zevio_timer_add(node)); +} + +CLOCKSOURCE_OF_DECLARE(zevio_timer, "lsi,zevio-timer", zevio_timer_init); diff --git a/drivers/cpufreq/longhaul.c b/drivers/cpufreq/longhaul.c index d00e5d1abd25..5c4369b5d834 100644 --- a/drivers/cpufreq/longhaul.c +++ b/drivers/cpufreq/longhaul.c @@ -242,7 +242,7 @@ static void do_powersaver(int cx_address, unsigned int mults_index, * Sets a new clock ratio. */ -static void longhaul_setstate(struct cpufreq_policy *policy, +static int longhaul_setstate(struct cpufreq_policy *policy, unsigned int table_index) { unsigned int mults_index; @@ -258,10 +258,12 @@ static void longhaul_setstate(struct cpufreq_policy *policy, /* Safety precautions */ mult = mults[mults_index & 0x1f]; if (mult == -1) - return; + return -EINVAL; + speed = calc_speed(mult); if ((speed > highest_speed) || (speed < lowest_speed)) - return; + return -EINVAL; + /* Voltage transition before frequency transition? */ if (can_scale_voltage && longhaul_index < table_index) dir = 1; @@ -269,8 +271,6 @@ static void longhaul_setstate(struct cpufreq_policy *policy, freqs.old = calc_speed(longhaul_get_cpu_mult()); freqs.new = speed; - cpufreq_freq_transition_begin(policy, &freqs); - pr_debug("Setting to FSB:%dMHz Mult:%d.%dx (%s)\n", fsb, mult/10, mult%10, print_speed(speed/1000)); retry_loop: @@ -385,12 +385,14 @@ retry_loop: goto retry_loop; } } - /* Report true CPU frequency */ - cpufreq_freq_transition_end(policy, &freqs, 0); - if (!bm_timeout) + if (!bm_timeout) { printk(KERN_INFO PFX "Warning: Timeout while waiting for " "idle PCI bus.\n"); + return -EBUSY; + } + + return 0; } /* @@ -631,9 +633,10 @@ static int longhaul_target(struct cpufreq_policy *policy, unsigned int i; unsigned int dir = 0; u8 vid, current_vid; + int retval = 0; if (!can_scale_voltage) - longhaul_setstate(policy, table_index); + retval = longhaul_setstate(policy, table_index); else { /* On test system voltage transitions exceeding single * step up or down were turning motherboard off. Both @@ -648,7 +651,7 @@ static int longhaul_target(struct cpufreq_policy *policy, while (i != table_index) { vid = (longhaul_table[i].driver_data >> 8) & 0x1f; if (vid != current_vid) { - longhaul_setstate(policy, i); + retval = longhaul_setstate(policy, i); current_vid = vid; msleep(200); } @@ -657,10 +660,11 @@ static int longhaul_target(struct cpufreq_policy *policy, else i--; } - longhaul_setstate(policy, table_index); + retval = longhaul_setstate(policy, table_index); } + longhaul_index = table_index; - return 0; + return retval; } @@ -968,7 +972,15 @@ static void __exit longhaul_exit(void) for (i = 0; i < numscales; i++) { if (mults[i] == maxmult) { + struct cpufreq_freqs freqs; + + freqs.old = policy->cur; + freqs.new = longhaul_table[i].frequency; + freqs.flags = 0; + + cpufreq_freq_transition_begin(policy, &freqs); longhaul_setstate(policy, i); + cpufreq_freq_transition_end(policy, &freqs, 0); break; } } diff --git a/drivers/cpufreq/powernow-k6.c b/drivers/cpufreq/powernow-k6.c index 49f120e1bc7b..78904e6ca4a0 100644 --- a/drivers/cpufreq/powernow-k6.c +++ b/drivers/cpufreq/powernow-k6.c @@ -138,22 +138,14 @@ static void powernow_k6_set_cpu_multiplier(unsigned int best_i) static int powernow_k6_target(struct cpufreq_policy *policy, unsigned int best_i) { - struct cpufreq_freqs freqs; if (clock_ratio[best_i].driver_data > max_multiplier) { printk(KERN_ERR PFX "invalid target frequency\n"); return -EINVAL; } - freqs.old = busfreq * powernow_k6_get_cpu_multiplier(); - freqs.new = busfreq * clock_ratio[best_i].driver_data; - - cpufreq_freq_transition_begin(policy, &freqs); - powernow_k6_set_cpu_multiplier(best_i); - cpufreq_freq_transition_end(policy, &freqs, 0); - return 0; } @@ -227,9 +219,20 @@ have_busfreq: static int powernow_k6_cpu_exit(struct cpufreq_policy *policy) { unsigned int i; - for (i = 0; i < 8; i++) { - if (i == max_multiplier) + + for (i = 0; (clock_ratio[i].frequency != CPUFREQ_TABLE_END); i++) { + if (clock_ratio[i].driver_data == max_multiplier) { + struct cpufreq_freqs freqs; + + freqs.old = policy->cur; + freqs.new = clock_ratio[i].frequency; + freqs.flags = 0; + + cpufreq_freq_transition_begin(policy, &freqs); powernow_k6_target(policy, i); + cpufreq_freq_transition_end(policy, &freqs, 0); + break; + } } return 0; } diff --git a/drivers/cpufreq/powernow-k7.c b/drivers/cpufreq/powernow-k7.c index f911645c3f6d..e61e224475ad 100644 --- a/drivers/cpufreq/powernow-k7.c +++ b/drivers/cpufreq/powernow-k7.c @@ -269,8 +269,6 @@ static int powernow_target(struct cpufreq_policy *policy, unsigned int index) freqs.new = powernow_table[index].frequency; - cpufreq_freq_transition_begin(policy, &freqs); - /* Now do the magic poking into the MSRs. */ if (have_a0 == 1) /* A0 errata 5 */ @@ -290,8 +288,6 @@ static int powernow_target(struct cpufreq_policy *policy, unsigned int index) if (have_a0 == 1) local_irq_enable(); - cpufreq_freq_transition_end(policy, &freqs, 0); - return 0; } diff --git a/drivers/cpufreq/ppc-corenet-cpufreq.c b/drivers/cpufreq/ppc-corenet-cpufreq.c index a1ca3dd04a8e..0af618abebaf 100644 --- a/drivers/cpufreq/ppc-corenet-cpufreq.c +++ b/drivers/cpufreq/ppc-corenet-cpufreq.c @@ -138,6 +138,7 @@ static int corenet_cpufreq_cpu_init(struct cpufreq_policy *policy) struct cpufreq_frequency_table *table; struct cpu_data *data; unsigned int cpu = policy->cpu; + u64 transition_latency_hz; np = of_get_cpu_node(cpu, NULL); if (!np) @@ -205,8 +206,10 @@ static int corenet_cpufreq_cpu_init(struct cpufreq_policy *policy) for_each_cpu(i, per_cpu(cpu_mask, cpu)) per_cpu(cpu_data, i) = data; + transition_latency_hz = 12ULL * NSEC_PER_SEC; policy->cpuinfo.transition_latency = - (12ULL * NSEC_PER_SEC) / fsl_get_sys_freq(); + do_div(transition_latency_hz, fsl_get_sys_freq()); + of_node_put(np); return 0; diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.c b/drivers/gpu/drm/exynos/exynos_drm_crtc.c index e930d4fe29c7..1ef5ab9c9d51 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_crtc.c +++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.c @@ -145,6 +145,7 @@ exynos_drm_crtc_mode_set(struct drm_crtc *crtc, struct drm_display_mode *mode, plane->crtc = crtc; plane->fb = crtc->primary->fb; + drm_framebuffer_reference(plane->fb); return 0; } diff --git a/drivers/gpu/drm/exynos/exynos_drm_dmabuf.c b/drivers/gpu/drm/exynos/exynos_drm_dmabuf.c index c786cd4f457b..2a3ad24276f8 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_dmabuf.c +++ b/drivers/gpu/drm/exynos/exynos_drm_dmabuf.c @@ -263,7 +263,7 @@ struct drm_gem_object *exynos_dmabuf_prime_import(struct drm_device *drm_dev, buffer->sgt = sgt; exynos_gem_obj->base.import_attach = attach; - DRM_DEBUG_PRIME("dma_addr = 0x%x, size = 0x%lx\n", buffer->dma_addr, + DRM_DEBUG_PRIME("dma_addr = %pad, size = 0x%lx\n", &buffer->dma_addr, buffer->size); return &exynos_gem_obj->base; diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c b/drivers/gpu/drm/exynos/exynos_drm_dsi.c index eb73e3bf2a0c..4ac438187568 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c @@ -1426,9 +1426,9 @@ static int exynos_dsi_probe(struct platform_device *pdev) res = platform_get_resource(pdev, IORESOURCE_MEM, 0); dsi->reg_base = devm_ioremap_resource(&pdev->dev, res); - if (!dsi->reg_base) { + if (IS_ERR(dsi->reg_base)) { dev_err(&pdev->dev, "failed to remap io region\n"); - return -EADDRNOTAVAIL; + return PTR_ERR(dsi->reg_base); } dsi->phy = devm_phy_get(&pdev->dev, "dsim"); diff --git a/drivers/gpu/drm/exynos/exynos_drm_vidi.c b/drivers/gpu/drm/exynos/exynos_drm_vidi.c index 7afead9c3f30..852f2dadaebd 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_vidi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_vidi.c @@ -220,7 +220,7 @@ static void vidi_win_commit(struct exynos_drm_manager *mgr, int zpos) win_data->enabled = true; - DRM_DEBUG_KMS("dma_addr = 0x%x\n", win_data->dma_addr); + DRM_DEBUG_KMS("dma_addr = %pad\n", &win_data->dma_addr); if (ctx->vblank_on) schedule_work(&ctx->work); diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c index ab5e93c30aa2..62a5c3627b90 100644 --- a/drivers/gpu/drm/i915/i915_gem_gtt.c +++ b/drivers/gpu/drm/i915/i915_gem_gtt.c @@ -50,7 +50,7 @@ bool intel_enable_ppgtt(struct drm_device *dev, bool full) /* Full ppgtt disabled by default for now due to issues. */ if (full) - return false; /* HAS_PPGTT(dev) */ + return HAS_PPGTT(dev) && (i915.enable_ppgtt == 2); else return HAS_ALIASING_PPGTT(dev); } diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index 7753249b3a95..f98ba4e6e70b 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -1362,10 +1362,20 @@ static inline void intel_hpd_irq_handler(struct drm_device *dev, spin_lock(&dev_priv->irq_lock); for (i = 1; i < HPD_NUM_PINS; i++) { - WARN_ONCE(hpd[i] & hotplug_trigger && - dev_priv->hpd_stats[i].hpd_mark == HPD_DISABLED, - "Received HPD interrupt (0x%08x) on pin %d (0x%08x) although disabled\n", - hotplug_trigger, i, hpd[i]); + if (hpd[i] & hotplug_trigger && + dev_priv->hpd_stats[i].hpd_mark == HPD_DISABLED) { + /* + * On GMCH platforms the interrupt mask bits only + * prevent irq generation, not the setting of the + * hotplug bits itself. So only WARN about unexpected + * interrupts on saner platforms. + */ + WARN_ONCE(INTEL_INFO(dev)->gen >= 5 && !IS_VALLEYVIEW(dev), + "Received HPD interrupt (0x%08x) on pin %d (0x%08x) although disabled\n", + hotplug_trigger, i, hpd[i]); + + continue; + } if (!(hpd[i] & hotplug_trigger) || dev_priv->hpd_stats[i].hpd_mark != HPD_ENABLED) diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 9f5b18d9d885..c77af69c2d8f 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -827,6 +827,7 @@ enum punit_power_well { # define MI_FLUSH_ENABLE (1 << 12) # define ASYNC_FLIP_PERF_DISABLE (1 << 14) # define MODE_IDLE (1 << 9) +# define STOP_RING (1 << 8) #define GEN6_GT_MODE 0x20d0 #define GEN7_GT_MODE 0x7008 diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index dae976f51d83..69bcc42a0e44 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -9654,11 +9654,22 @@ intel_pipe_config_compare(struct drm_device *dev, PIPE_CONF_CHECK_I(pipe_src_w); PIPE_CONF_CHECK_I(pipe_src_h); - PIPE_CONF_CHECK_I(gmch_pfit.control); - /* pfit ratios are autocomputed by the hw on gen4+ */ - if (INTEL_INFO(dev)->gen < 4) - PIPE_CONF_CHECK_I(gmch_pfit.pgm_ratios); - PIPE_CONF_CHECK_I(gmch_pfit.lvds_border_bits); + /* + * FIXME: BIOS likes to set up a cloned config with lvds+external + * screen. Since we don't yet re-compute the pipe config when moving + * just the lvds port away to another pipe the sw tracking won't match. + * + * Proper atomic modesets with recomputed global state will fix this. + * Until then just don't check gmch state for inherited modes. + */ + if (!PIPE_CONF_QUIRK(PIPE_CONFIG_QUIRK_INHERITED_MODE)) { + PIPE_CONF_CHECK_I(gmch_pfit.control); + /* pfit ratios are autocomputed by the hw on gen4+ */ + if (INTEL_INFO(dev)->gen < 4) + PIPE_CONF_CHECK_I(gmch_pfit.pgm_ratios); + PIPE_CONF_CHECK_I(gmch_pfit.lvds_border_bits); + } + PIPE_CONF_CHECK_I(pch_pfit.enabled); if (current_config->pch_pfit.enabled) { PIPE_CONF_CHECK_I(pch_pfit.pos); @@ -11616,6 +11627,8 @@ static void intel_modeset_readout_hw_state(struct drm_device *dev) base.head) { memset(&crtc->config, 0, sizeof(crtc->config)); + crtc->config.quirks |= PIPE_CONFIG_QUIRK_INHERITED_MODE; + crtc->active = dev_priv->display.get_pipe_config(crtc, &crtc->config); diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index d2a55884ad52..dfa85289f28f 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -3619,7 +3619,8 @@ static bool intel_edp_init_connector(struct intel_dp *intel_dp, { struct drm_connector *connector = &intel_connector->base; struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp); - struct drm_device *dev = intel_dig_port->base.base.dev; + struct intel_encoder *intel_encoder = &intel_dig_port->base; + struct drm_device *dev = intel_encoder->base.dev; struct drm_i915_private *dev_priv = dev->dev_private; struct drm_display_mode *fixed_mode = NULL; bool has_dpcd; @@ -3629,6 +3630,14 @@ static bool intel_edp_init_connector(struct intel_dp *intel_dp, if (!is_edp(intel_dp)) return true; + /* The VDD bit needs a power domain reference, so if the bit is already + * enabled when we boot, grab this reference. */ + if (edp_have_panel_vdd(intel_dp)) { + enum intel_display_power_domain power_domain; + power_domain = intel_display_port_power_domain(intel_encoder); + intel_display_power_get(dev_priv, power_domain); + } + /* Cache DPCD and EDID for edp. */ intel_edp_panel_vdd_on(intel_dp); has_dpcd = intel_dp_get_dpcd(intel_dp); diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index 0542de982260..328b1a70264b 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -236,7 +236,8 @@ struct intel_crtc_config { * tracked with quirk flags so that fastboot and state checker can act * accordingly. */ -#define PIPE_CONFIG_QUIRK_MODE_SYNC_FLAGS (1<<0) /* unreliable sync mode.flags */ +#define PIPE_CONFIG_QUIRK_MODE_SYNC_FLAGS (1<<0) /* unreliable sync mode.flags */ +#define PIPE_CONFIG_QUIRK_INHERITED_MODE (1<<1) /* mode inherited from firmware */ unsigned long quirks; /* User requested mode, only valid as a starting point to diff --git a/drivers/gpu/drm/i915/intel_fbdev.c b/drivers/gpu/drm/i915/intel_fbdev.c index b4d44e62f0c7..fce4a0d93c0b 100644 --- a/drivers/gpu/drm/i915/intel_fbdev.c +++ b/drivers/gpu/drm/i915/intel_fbdev.c @@ -132,6 +132,16 @@ static int intelfb_create(struct drm_fb_helper *helper, mutex_lock(&dev->struct_mutex); + if (intel_fb && + (sizes->fb_width > intel_fb->base.width || + sizes->fb_height > intel_fb->base.height)) { + DRM_DEBUG_KMS("BIOS fb too small (%dx%d), we require (%dx%d)," + " releasing it\n", + intel_fb->base.width, intel_fb->base.height, + sizes->fb_width, sizes->fb_height); + drm_framebuffer_unreference(&intel_fb->base); + intel_fb = ifbdev->fb = NULL; + } if (!intel_fb || WARN_ON(!intel_fb->obj)) { DRM_DEBUG_KMS("no BIOS fb, allocating a new one\n"); ret = intelfb_alloc(helper, sizes); diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c index b0413e190625..157267aa3561 100644 --- a/drivers/gpu/drm/i915/intel_hdmi.c +++ b/drivers/gpu/drm/i915/intel_hdmi.c @@ -821,11 +821,11 @@ static void intel_disable_hdmi(struct intel_encoder *encoder) } } -static int hdmi_portclock_limit(struct intel_hdmi *hdmi) +static int hdmi_portclock_limit(struct intel_hdmi *hdmi, bool respect_dvi_limit) { struct drm_device *dev = intel_hdmi_to_dev(hdmi); - if (!hdmi->has_hdmi_sink || IS_G4X(dev)) + if ((respect_dvi_limit && !hdmi->has_hdmi_sink) || IS_G4X(dev)) return 165000; else if (IS_HASWELL(dev) || INTEL_INFO(dev)->gen >= 8) return 300000; @@ -837,7 +837,8 @@ static enum drm_mode_status intel_hdmi_mode_valid(struct drm_connector *connector, struct drm_display_mode *mode) { - if (mode->clock > hdmi_portclock_limit(intel_attached_hdmi(connector))) + if (mode->clock > hdmi_portclock_limit(intel_attached_hdmi(connector), + true)) return MODE_CLOCK_HIGH; if (mode->clock < 20000) return MODE_CLOCK_LOW; @@ -879,7 +880,7 @@ bool intel_hdmi_compute_config(struct intel_encoder *encoder, struct drm_device *dev = encoder->base.dev; struct drm_display_mode *adjusted_mode = &pipe_config->adjusted_mode; int clock_12bpc = pipe_config->adjusted_mode.crtc_clock * 3 / 2; - int portclock_limit = hdmi_portclock_limit(intel_hdmi); + int portclock_limit = hdmi_portclock_limit(intel_hdmi, false); int desired_bpp; if (intel_hdmi->color_range_auto) { diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index 6bc68bdcf433..79fb4cc2137c 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -437,32 +437,41 @@ static void ring_setup_phys_status_page(struct intel_ring_buffer *ring) I915_WRITE(HWS_PGA, addr); } -static int init_ring_common(struct intel_ring_buffer *ring) +static bool stop_ring(struct intel_ring_buffer *ring) { - struct drm_device *dev = ring->dev; - struct drm_i915_private *dev_priv = dev->dev_private; - struct drm_i915_gem_object *obj = ring->obj; - int ret = 0; - u32 head; + struct drm_i915_private *dev_priv = to_i915(ring->dev); - gen6_gt_force_wake_get(dev_priv, FORCEWAKE_ALL); + if (!IS_GEN2(ring->dev)) { + I915_WRITE_MODE(ring, _MASKED_BIT_ENABLE(STOP_RING)); + if (wait_for_atomic((I915_READ_MODE(ring) & MODE_IDLE) != 0, 1000)) { + DRM_ERROR("%s :timed out trying to stop ring\n", ring->name); + return false; + } + } - /* Stop the ring if it's running. */ I915_WRITE_CTL(ring, 0); I915_WRITE_HEAD(ring, 0); ring->write_tail(ring, 0); - if (wait_for_atomic((I915_READ_MODE(ring) & MODE_IDLE) != 0, 1000)) - DRM_ERROR("%s :timed out trying to stop ring\n", ring->name); - if (I915_NEED_GFX_HWS(dev)) - intel_ring_setup_status_page(ring); - else - ring_setup_phys_status_page(ring); + if (!IS_GEN2(ring->dev)) { + (void)I915_READ_CTL(ring); + I915_WRITE_MODE(ring, _MASKED_BIT_DISABLE(STOP_RING)); + } - head = I915_READ_HEAD(ring) & HEAD_ADDR; + return (I915_READ_HEAD(ring) & HEAD_ADDR) == 0; +} - /* G45 ring initialization fails to reset head to zero */ - if (head != 0) { +static int init_ring_common(struct intel_ring_buffer *ring) +{ + struct drm_device *dev = ring->dev; + struct drm_i915_private *dev_priv = dev->dev_private; + struct drm_i915_gem_object *obj = ring->obj; + int ret = 0; + + gen6_gt_force_wake_get(dev_priv, FORCEWAKE_ALL); + + if (!stop_ring(ring)) { + /* G45 ring initialization often fails to reset head to zero */ DRM_DEBUG_KMS("%s head not reset to zero " "ctl %08x head %08x tail %08x start %08x\n", ring->name, @@ -471,9 +480,7 @@ static int init_ring_common(struct intel_ring_buffer *ring) I915_READ_TAIL(ring), I915_READ_START(ring)); - I915_WRITE_HEAD(ring, 0); - - if (I915_READ_HEAD(ring) & HEAD_ADDR) { + if (!stop_ring(ring)) { DRM_ERROR("failed to set %s head to zero " "ctl %08x head %08x tail %08x start %08x\n", ring->name, @@ -481,9 +488,16 @@ static int init_ring_common(struct intel_ring_buffer *ring) I915_READ_HEAD(ring), I915_READ_TAIL(ring), I915_READ_START(ring)); + ret = -EIO; + goto out; } } + if (I915_NEED_GFX_HWS(dev)) + intel_ring_setup_status_page(ring); + else + ring_setup_phys_status_page(ring); + /* Initialize the ring. This must happen _after_ we've cleared the ring * registers with the above sequence (the readback of the HEAD registers * also enforces ordering), otherwise the hw might lose the new ring diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.h b/drivers/gpu/drm/i915/intel_ringbuffer.h index 270a6a973438..2b91c4b4d34b 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.h +++ b/drivers/gpu/drm/i915/intel_ringbuffer.h @@ -34,6 +34,7 @@ struct intel_hw_status_page { #define I915_WRITE_IMR(ring, val) I915_WRITE(RING_IMR((ring)->mmio_base), val) #define I915_READ_MODE(ring) I915_READ(RING_MI_MODE((ring)->mmio_base)) +#define I915_WRITE_MODE(ring, val) I915_WRITE(RING_MI_MODE((ring)->mmio_base), val) enum intel_ring_hangcheck_action { HANGCHECK_IDLE = 0, diff --git a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_crtc.c b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_crtc.c index 3e6c0f3ed592..ef9957dbac94 100644 --- a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_crtc.c +++ b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_crtc.c @@ -510,9 +510,8 @@ static void update_cursor(struct drm_crtc *crtc) MDP4_DMA_CURSOR_BLEND_CONFIG_CURSOR_EN); } else { /* disable cursor: */ - mdp4_write(mdp4_kms, REG_MDP4_DMA_CURSOR_BASE(dma), 0); - mdp4_write(mdp4_kms, REG_MDP4_DMA_CURSOR_BLEND_CONFIG(dma), - MDP4_DMA_CURSOR_BLEND_CONFIG_FORMAT(CURSOR_ARGB)); + mdp4_write(mdp4_kms, REG_MDP4_DMA_CURSOR_BASE(dma), + mdp4_kms->blank_cursor_iova); } /* and drop the iova ref + obj rev when done scanning out: */ @@ -574,11 +573,9 @@ static int mdp4_crtc_cursor_set(struct drm_crtc *crtc, if (old_bo) { /* drop our previous reference: */ - msm_gem_put_iova(old_bo, mdp4_kms->id); - drm_gem_object_unreference_unlocked(old_bo); + drm_flip_work_queue(&mdp4_crtc->unref_cursor_work, old_bo); } - crtc_flush(crtc); request_pending(crtc, PENDING_CURSOR); return 0; diff --git a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_irq.c b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_irq.c index c740ccd1cc67..8edd531cb621 100644 --- a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_irq.c +++ b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_irq.c @@ -70,12 +70,12 @@ irqreturn_t mdp4_irq(struct msm_kms *kms) VERB("status=%08x", status); + mdp_dispatch_irqs(mdp_kms, status); + for (id = 0; id < priv->num_crtcs; id++) if (status & mdp4_crtc_vblank(priv->crtcs[id])) drm_handle_vblank(dev, id); - mdp_dispatch_irqs(mdp_kms, status); - return IRQ_HANDLED; } diff --git a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c index 272e707c9487..0bb4faa17523 100644 --- a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c +++ b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c @@ -144,6 +144,10 @@ static void mdp4_preclose(struct msm_kms *kms, struct drm_file *file) static void mdp4_destroy(struct msm_kms *kms) { struct mdp4_kms *mdp4_kms = to_mdp4_kms(to_mdp_kms(kms)); + if (mdp4_kms->blank_cursor_iova) + msm_gem_put_iova(mdp4_kms->blank_cursor_bo, mdp4_kms->id); + if (mdp4_kms->blank_cursor_bo) + drm_gem_object_unreference(mdp4_kms->blank_cursor_bo); kfree(mdp4_kms); } @@ -372,6 +376,23 @@ struct msm_kms *mdp4_kms_init(struct drm_device *dev) goto fail; } + mutex_lock(&dev->struct_mutex); + mdp4_kms->blank_cursor_bo = msm_gem_new(dev, SZ_16K, MSM_BO_WC); + mutex_unlock(&dev->struct_mutex); + if (IS_ERR(mdp4_kms->blank_cursor_bo)) { + ret = PTR_ERR(mdp4_kms->blank_cursor_bo); + dev_err(dev->dev, "could not allocate blank-cursor bo: %d\n", ret); + mdp4_kms->blank_cursor_bo = NULL; + goto fail; + } + + ret = msm_gem_get_iova(mdp4_kms->blank_cursor_bo, mdp4_kms->id, + &mdp4_kms->blank_cursor_iova); + if (ret) { + dev_err(dev->dev, "could not pin blank-cursor bo: %d\n", ret); + goto fail; + } + return kms; fail: diff --git a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.h b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.h index 66a4d31aec80..715520c54cde 100644 --- a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.h +++ b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.h @@ -44,6 +44,10 @@ struct mdp4_kms { struct clk *lut_clk; struct mdp_irq error_handler; + + /* empty/blank cursor bo to use when cursor is "disabled" */ + struct drm_gem_object *blank_cursor_bo; + uint32_t blank_cursor_iova; }; #define to_mdp4_kms(x) container_of(x, struct mdp4_kms, base) diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_irq.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_irq.c index 353d494a497f..f2b985bc2adf 100644 --- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_irq.c +++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_irq.c @@ -71,11 +71,11 @@ static void mdp5_irq_mdp(struct mdp_kms *mdp_kms) VERB("status=%08x", status); + mdp_dispatch_irqs(mdp_kms, status); + for (id = 0; id < priv->num_crtcs; id++) if (status & mdp5_crtc_vblank(priv->crtcs[id])) drm_handle_vblank(dev, id); - - mdp_dispatch_irqs(mdp_kms, status); } irqreturn_t mdp5_irq(struct msm_kms *kms) diff --git a/drivers/gpu/drm/msm/msm_fbdev.c b/drivers/gpu/drm/msm/msm_fbdev.c index 6c6d7d4c9b4e..a752ab83b810 100644 --- a/drivers/gpu/drm/msm/msm_fbdev.c +++ b/drivers/gpu/drm/msm/msm_fbdev.c @@ -62,11 +62,8 @@ static int msm_fbdev_create(struct drm_fb_helper *helper, dma_addr_t paddr; int ret, size; - /* only doing ARGB32 since this is what is needed to alpha-blend - * with video overlays: - */ sizes->surface_bpp = 32; - sizes->surface_depth = 32; + sizes->surface_depth = 24; DBG("create fbdev: %dx%d@%d (%dx%d)", sizes->surface_width, sizes->surface_height, sizes->surface_bpp, diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c index 3da8264d3039..bb8026daebc9 100644 --- a/drivers/gpu/drm/msm/msm_gem.c +++ b/drivers/gpu/drm/msm/msm_gem.c @@ -118,8 +118,10 @@ static void put_pages(struct drm_gem_object *obj) if (iommu_present(&platform_bus_type)) drm_gem_put_pages(obj, msm_obj->pages, true, false); - else + else { drm_mm_remove_node(msm_obj->vram_node); + drm_free_large(msm_obj->pages); + } msm_obj->pages = NULL; } diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c index 36c717af6cf9..edb871d7d395 100644 --- a/drivers/gpu/drm/tegra/dc.c +++ b/drivers/gpu/drm/tegra/dc.c @@ -312,7 +312,7 @@ static void tegra_crtc_disable(struct drm_crtc *crtc) struct drm_device *drm = crtc->dev; struct drm_plane *plane; - list_for_each_entry(plane, &drm->mode_config.plane_list, head) { + drm_for_each_legacy_plane(plane, &drm->mode_config.plane_list) { if (plane->crtc == crtc) { tegra_plane_disable(plane); plane->crtc = NULL; diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c index 931490b9cfed..87df0b3674fd 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c @@ -1214,14 +1214,36 @@ static int vmw_cmd_dma(struct vmw_private *dev_priv, SVGA3dCmdSurfaceDMA dma; } *cmd; int ret; + SVGA3dCmdSurfaceDMASuffix *suffix; + uint32_t bo_size; cmd = container_of(header, struct vmw_dma_cmd, header); + suffix = (SVGA3dCmdSurfaceDMASuffix *)((unsigned long) &cmd->dma + + header->size - sizeof(*suffix)); + + /* Make sure device and verifier stays in sync. */ + if (unlikely(suffix->suffixSize != sizeof(*suffix))) { + DRM_ERROR("Invalid DMA suffix size.\n"); + return -EINVAL; + } + ret = vmw_translate_guest_ptr(dev_priv, sw_context, &cmd->dma.guest.ptr, &vmw_bo); if (unlikely(ret != 0)) return ret; + /* Make sure DMA doesn't cross BO boundaries. */ + bo_size = vmw_bo->base.num_pages * PAGE_SIZE; + if (unlikely(cmd->dma.guest.ptr.offset > bo_size)) { + DRM_ERROR("Invalid DMA offset.\n"); + return -EINVAL; + } + + bo_size -= cmd->dma.guest.ptr.offset; + if (unlikely(suffix->maximumOffset > bo_size)) + suffix->maximumOffset = bo_size; + ret = vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface, user_surface_converter, &cmd->dma.host.sid, NULL); diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c index 6d02e3b06375..d76f0b70c6e0 100644 --- a/drivers/hwmon/coretemp.c +++ b/drivers/hwmon/coretemp.c @@ -365,12 +365,12 @@ static int get_tjmax(struct cpuinfo_x86 *c, u32 id, struct device *dev) if (cpu_has_tjmax(c)) dev_warn(dev, "Unable to read TjMax from CPU %u\n", id); } else { - val = (eax >> 16) & 0x7f; + val = (eax >> 16) & 0xff; /* * If the TjMax is not plausible, an assumption * will be used */ - if (val >= 85) { + if (val) { dev_dbg(dev, "TjMax is %d degrees C\n", val); return val * 1000; } diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig index d86196cfe4b4..24c28e3f93a3 100644 --- a/drivers/iio/adc/Kconfig +++ b/drivers/iio/adc/Kconfig @@ -106,7 +106,7 @@ config AT91_ADC Say yes here to build support for Atmel AT91 ADC. config EXYNOS_ADC - bool "Exynos ADC driver support" + tristate "Exynos ADC driver support" depends on OF help Core support for the ADC block found in the Samsung EXYNOS series @@ -114,7 +114,7 @@ config EXYNOS_ADC this resource. config LP8788_ADC - bool "LP8788 ADC driver" + tristate "LP8788 ADC driver" depends on MFD_LP8788 help Say yes here to build support for TI LP8788 ADC. diff --git a/drivers/iio/adc/exynos_adc.c b/drivers/iio/adc/exynos_adc.c index d25b262193a7..affa93f51789 100644 --- a/drivers/iio/adc/exynos_adc.c +++ b/drivers/iio/adc/exynos_adc.c @@ -344,7 +344,7 @@ static int exynos_adc_probe(struct platform_device *pdev) exynos_adc_hw_init(info); - ret = of_platform_populate(np, exynos_adc_match, NULL, &pdev->dev); + ret = of_platform_populate(np, exynos_adc_match, NULL, &indio_dev->dev); if (ret < 0) { dev_err(&pdev->dev, "failed adding child nodes\n"); goto err_of_populate; @@ -353,7 +353,7 @@ static int exynos_adc_probe(struct platform_device *pdev) return 0; err_of_populate: - device_for_each_child(&pdev->dev, NULL, + device_for_each_child(&indio_dev->dev, NULL, exynos_adc_remove_devices); regulator_disable(info->vdd); clk_disable_unprepare(info->clk); @@ -369,7 +369,7 @@ static int exynos_adc_remove(struct platform_device *pdev) struct iio_dev *indio_dev = platform_get_drvdata(pdev); struct exynos_adc *info = iio_priv(indio_dev); - device_for_each_child(&pdev->dev, NULL, + device_for_each_child(&indio_dev->dev, NULL, exynos_adc_remove_devices); regulator_disable(info->vdd); clk_disable_unprepare(info->clk); diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c index cb9f96b446a5..d8ad606c7cd0 100644 --- a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c +++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c @@ -660,6 +660,7 @@ static int inv_mpu_probe(struct i2c_client *client, { struct inv_mpu6050_state *st; struct iio_dev *indio_dev; + struct inv_mpu6050_platform_data *pdata; int result; if (!i2c_check_functionality(client->adapter, @@ -672,8 +673,10 @@ static int inv_mpu_probe(struct i2c_client *client, st = iio_priv(indio_dev); st->client = client; - st->plat_data = *(struct inv_mpu6050_platform_data - *)dev_get_platdata(&client->dev); + pdata = (struct inv_mpu6050_platform_data + *)dev_get_platdata(&client->dev); + if (pdata) + st->plat_data = *pdata; /* power is turned on inside check chip type*/ result = inv_check_and_setup_chip(st, id); if (result) diff --git a/drivers/infiniband/hw/cxgb4/Kconfig b/drivers/infiniband/hw/cxgb4/Kconfig index d4e8983fba53..23f38cf2c5cd 100644 --- a/drivers/infiniband/hw/cxgb4/Kconfig +++ b/drivers/infiniband/hw/cxgb4/Kconfig @@ -1,10 +1,10 @@ config INFINIBAND_CXGB4 - tristate "Chelsio T4 RDMA Driver" + tristate "Chelsio T4/T5 RDMA Driver" depends on CHELSIO_T4 && INET && (IPV6 || IPV6=n) select GENERIC_ALLOCATOR ---help--- - This is an iWARP/RDMA driver for the Chelsio T4 1GbE and - 10GbE adapters. + This is an iWARP/RDMA driver for the Chelsio T4 and T5 + 1GbE, 10GbE adapters and T5 40GbE adapter. For general information about Chelsio and our products, visit our website at <http://www.chelsio.com>. diff --git a/drivers/infiniband/hw/cxgb4/cm.c b/drivers/infiniband/hw/cxgb4/cm.c index 185452abf32c..1f863a96a480 100644 --- a/drivers/infiniband/hw/cxgb4/cm.c +++ b/drivers/infiniband/hw/cxgb4/cm.c @@ -587,6 +587,10 @@ static int send_connect(struct c4iw_ep *ep) opt2 |= SACK_EN(1); if (wscale && enable_tcp_window_scaling) opt2 |= WND_SCALE_EN(1); + if (is_t5(ep->com.dev->rdev.lldi.adapter_type)) { + opt2 |= T5_OPT_2_VALID; + opt2 |= V_CONG_CNTRL(CONG_ALG_TAHOE); + } t4_set_arp_err_handler(skb, NULL, act_open_req_arp_failure); if (is_t4(ep->com.dev->rdev.lldi.adapter_type)) { @@ -996,7 +1000,7 @@ static void close_complete_upcall(struct c4iw_ep *ep, int status) static int abort_connection(struct c4iw_ep *ep, struct sk_buff *skb, gfp_t gfp) { PDBG("%s ep %p tid %u\n", __func__, ep, ep->hwtid); - state_set(&ep->com, ABORTING); + __state_set(&ep->com, ABORTING); set_bit(ABORT_CONN, &ep->com.history); return send_abort(ep, skb, gfp); } @@ -1154,7 +1158,7 @@ static int update_rx_credits(struct c4iw_ep *ep, u32 credits) return credits; } -static void process_mpa_reply(struct c4iw_ep *ep, struct sk_buff *skb) +static int process_mpa_reply(struct c4iw_ep *ep, struct sk_buff *skb) { struct mpa_message *mpa; struct mpa_v2_conn_params *mpa_v2_params; @@ -1164,6 +1168,7 @@ static void process_mpa_reply(struct c4iw_ep *ep, struct sk_buff *skb) struct c4iw_qp_attributes attrs; enum c4iw_qp_attr_mask mask; int err; + int disconnect = 0; PDBG("%s ep %p tid %u\n", __func__, ep, ep->hwtid); @@ -1173,7 +1178,7 @@ static void process_mpa_reply(struct c4iw_ep *ep, struct sk_buff *skb) * will abort the connection. */ if (stop_ep_timer(ep)) - return; + return 0; /* * If we get more than the supported amount of private data @@ -1195,7 +1200,7 @@ static void process_mpa_reply(struct c4iw_ep *ep, struct sk_buff *skb) * if we don't even have the mpa message, then bail. */ if (ep->mpa_pkt_len < sizeof(*mpa)) - return; + return 0; mpa = (struct mpa_message *) ep->mpa_pkt; /* Validate MPA header. */ @@ -1235,7 +1240,7 @@ static void process_mpa_reply(struct c4iw_ep *ep, struct sk_buff *skb) * We'll continue process when more data arrives. */ if (ep->mpa_pkt_len < (sizeof(*mpa) + plen)) - return; + return 0; if (mpa->flags & MPA_REJECT) { err = -ECONNREFUSED; @@ -1337,9 +1342,11 @@ static void process_mpa_reply(struct c4iw_ep *ep, struct sk_buff *skb) attrs.layer_etype = LAYER_MPA | DDP_LLP; attrs.ecode = MPA_NOMATCH_RTR; attrs.next_state = C4IW_QP_STATE_TERMINATE; + attrs.send_term = 1; err = c4iw_modify_qp(ep->com.qp->rhp, ep->com.qp, - C4IW_QP_ATTR_NEXT_STATE, &attrs, 0); + C4IW_QP_ATTR_NEXT_STATE, &attrs, 1); err = -ENOMEM; + disconnect = 1; goto out; } @@ -1355,9 +1362,11 @@ static void process_mpa_reply(struct c4iw_ep *ep, struct sk_buff *skb) attrs.layer_etype = LAYER_MPA | DDP_LLP; attrs.ecode = MPA_INSUFF_IRD; attrs.next_state = C4IW_QP_STATE_TERMINATE; + attrs.send_term = 1; err = c4iw_modify_qp(ep->com.qp->rhp, ep->com.qp, - C4IW_QP_ATTR_NEXT_STATE, &attrs, 0); + C4IW_QP_ATTR_NEXT_STATE, &attrs, 1); err = -ENOMEM; + disconnect = 1; goto out; } goto out; @@ -1366,7 +1375,7 @@ err: send_abort(ep, skb, GFP_KERNEL); out: connect_reply_upcall(ep, err); - return; + return disconnect; } static void process_mpa_request(struct c4iw_ep *ep, struct sk_buff *skb) @@ -1524,6 +1533,7 @@ static int rx_data(struct c4iw_dev *dev, struct sk_buff *skb) unsigned int tid = GET_TID(hdr); struct tid_info *t = dev->rdev.lldi.tids; __u8 status = hdr->status; + int disconnect = 0; ep = lookup_tid(t, tid); if (!ep) @@ -1539,7 +1549,7 @@ static int rx_data(struct c4iw_dev *dev, struct sk_buff *skb) switch (ep->com.state) { case MPA_REQ_SENT: ep->rcv_seq += dlen; - process_mpa_reply(ep, skb); + disconnect = process_mpa_reply(ep, skb); break; case MPA_REQ_WAIT: ep->rcv_seq += dlen; @@ -1555,13 +1565,16 @@ static int rx_data(struct c4iw_dev *dev, struct sk_buff *skb) ep->com.state, ep->hwtid, status); attrs.next_state = C4IW_QP_STATE_TERMINATE; c4iw_modify_qp(ep->com.qp->rhp, ep->com.qp, - C4IW_QP_ATTR_NEXT_STATE, &attrs, 0); + C4IW_QP_ATTR_NEXT_STATE, &attrs, 1); + disconnect = 1; break; } default: break; } mutex_unlock(&ep->com.mutex); + if (disconnect) + c4iw_ep_disconnect(ep, 0, GFP_KERNEL); return 0; } @@ -2009,6 +2022,10 @@ static void accept_cr(struct c4iw_ep *ep, struct sk_buff *skb, if (tcph->ece && tcph->cwr) opt2 |= CCTRL_ECN(1); } + if (is_t5(ep->com.dev->rdev.lldi.adapter_type)) { + opt2 |= T5_OPT_2_VALID; + opt2 |= V_CONG_CNTRL(CONG_ALG_TAHOE); + } rpl = cplhdr(skb); INIT_TP_WR(rpl, ep->hwtid); @@ -3482,9 +3499,9 @@ static void process_timeout(struct c4iw_ep *ep) __func__, ep, ep->hwtid, ep->com.state); abort = 0; } - mutex_unlock(&ep->com.mutex); if (abort) abort_connection(ep, NULL, GFP_KERNEL); + mutex_unlock(&ep->com.mutex); c4iw_put_ep(&ep->com); } diff --git a/drivers/infiniband/hw/cxgb4/iw_cxgb4.h b/drivers/infiniband/hw/cxgb4/iw_cxgb4.h index 7b8c5806a09d..7474b490760a 100644 --- a/drivers/infiniband/hw/cxgb4/iw_cxgb4.h +++ b/drivers/infiniband/hw/cxgb4/iw_cxgb4.h @@ -435,6 +435,7 @@ struct c4iw_qp_attributes { u8 ecode; u16 sq_db_inc; u16 rq_db_inc; + u8 send_term; }; struct c4iw_qp { diff --git a/drivers/infiniband/hw/cxgb4/qp.c b/drivers/infiniband/hw/cxgb4/qp.c index 7b5114cb486f..086f62f5dc9e 100644 --- a/drivers/infiniband/hw/cxgb4/qp.c +++ b/drivers/infiniband/hw/cxgb4/qp.c @@ -1388,11 +1388,12 @@ int c4iw_modify_qp(struct c4iw_dev *rhp, struct c4iw_qp *qhp, qhp->attr.layer_etype = attrs->layer_etype; qhp->attr.ecode = attrs->ecode; ep = qhp->ep; - disconnect = 1; - c4iw_get_ep(&qhp->ep->com); - if (!internal) + if (!internal) { + c4iw_get_ep(&qhp->ep->com); terminate = 1; - else { + disconnect = 1; + } else { + terminate = qhp->attr.send_term; ret = rdma_fini(rhp, qhp, ep); if (ret) goto err; @@ -1776,11 +1777,15 @@ int c4iw_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, /* * Use SQ_PSN and RQ_PSN to pass in IDX_INC values for * ringing the queue db when we're in DB_FULL mode. + * Only allow this on T4 devices. */ attrs.sq_db_inc = attr->sq_psn; attrs.rq_db_inc = attr->rq_psn; mask |= (attr_mask & IB_QP_SQ_PSN) ? C4IW_QP_ATTR_SQ_DB : 0; mask |= (attr_mask & IB_QP_RQ_PSN) ? C4IW_QP_ATTR_RQ_DB : 0; + if (is_t5(to_c4iw_qp(ibqp)->rhp->rdev.lldi.adapter_type) && + (mask & (C4IW_QP_ATTR_SQ_DB|C4IW_QP_ATTR_RQ_DB))) + return -EINVAL; return c4iw_modify_qp(rhp, qhp, mask, &attrs, 0); } diff --git a/drivers/infiniband/hw/cxgb4/t4fw_ri_api.h b/drivers/infiniband/hw/cxgb4/t4fw_ri_api.h index dc193c292671..6121ca08fe58 100644 --- a/drivers/infiniband/hw/cxgb4/t4fw_ri_api.h +++ b/drivers/infiniband/hw/cxgb4/t4fw_ri_api.h @@ -836,4 +836,18 @@ struct ulptx_idata { #define V_RX_DACK_CHANGE(x) ((x) << S_RX_DACK_CHANGE) #define F_RX_DACK_CHANGE V_RX_DACK_CHANGE(1U) +enum { /* TCP congestion control algorithms */ + CONG_ALG_RENO, + CONG_ALG_TAHOE, + CONG_ALG_NEWRENO, + CONG_ALG_HIGHSPEED +}; + +#define S_CONG_CNTRL 14 +#define M_CONG_CNTRL 0x3 +#define V_CONG_CNTRL(x) ((x) << S_CONG_CNTRL) +#define G_CONG_CNTRL(x) (((x) >> S_CONG_CNTRL) & M_CONG_CNTRL) + +#define T5_OPT_2_VALID (1 << 31) + #endif /* _T4FW_RI_API_H_ */ diff --git a/drivers/irqchip/irq-armada-370-xp.c b/drivers/irqchip/irq-armada-370-xp.c index 41be897df8d5..3899ba7821c5 100644 --- a/drivers/irqchip/irq-armada-370-xp.c +++ b/drivers/irqchip/irq-armada-370-xp.c @@ -41,6 +41,7 @@ #define ARMADA_370_XP_INT_SET_ENABLE_OFFS (0x30) #define ARMADA_370_XP_INT_CLEAR_ENABLE_OFFS (0x34) #define ARMADA_370_XP_INT_SOURCE_CTL(irq) (0x100 + irq*4) +#define ARMADA_370_XP_INT_SOURCE_CPU_MASK 0xF #define ARMADA_370_XP_CPU_INTACK_OFFS (0x44) #define ARMADA_375_PPI_CAUSE (0x10) @@ -132,8 +133,7 @@ static int armada_370_xp_setup_msi_irq(struct msi_chip *chip, struct msi_desc *desc) { struct msi_msg msg; - irq_hw_number_t hwirq; - int virq; + int virq, hwirq; hwirq = armada_370_xp_alloc_msi(); if (hwirq < 0) @@ -159,8 +159,19 @@ static void armada_370_xp_teardown_msi_irq(struct msi_chip *chip, unsigned int irq) { struct irq_data *d = irq_get_irq_data(irq); + unsigned long hwirq = d->hwirq; + irq_dispose_mapping(irq); - armada_370_xp_free_msi(d->hwirq); + armada_370_xp_free_msi(hwirq); +} + +static int armada_370_xp_check_msi_device(struct msi_chip *chip, struct pci_dev *dev, + int nvec, int type) +{ + /* We support MSI, but not MSI-X */ + if (type == PCI_CAP_ID_MSI) + return 0; + return -EINVAL; } static struct irq_chip armada_370_xp_msi_irq_chip = { @@ -201,6 +212,7 @@ static int armada_370_xp_msi_init(struct device_node *node, msi_chip->setup_irq = armada_370_xp_setup_msi_irq; msi_chip->teardown_irq = armada_370_xp_teardown_msi_irq; + msi_chip->check_device = armada_370_xp_check_msi_device; msi_chip->of_node = node; armada_370_xp_msi_domain = @@ -244,35 +256,18 @@ static DEFINE_RAW_SPINLOCK(irq_controller_lock); static int armada_xp_set_affinity(struct irq_data *d, const struct cpumask *mask_val, bool force) { - unsigned long reg; - unsigned long new_mask = 0; - unsigned long online_mask = 0; - unsigned long count = 0; irq_hw_number_t hwirq = irqd_to_hwirq(d); + unsigned long reg, mask; int cpu; - for_each_cpu(cpu, mask_val) { - new_mask |= 1 << cpu_logical_map(cpu); - count++; - } - - /* - * Forbid mutlicore interrupt affinity - * This is required since the MPIC HW doesn't limit - * several CPUs from acknowledging the same interrupt. - */ - if (count > 1) - return -EINVAL; - - for_each_cpu(cpu, cpu_online_mask) - online_mask |= 1 << cpu_logical_map(cpu); + /* Select a single core from the affinity mask which is online */ + cpu = cpumask_any_and(mask_val, cpu_online_mask); + mask = 1UL << cpu_logical_map(cpu); raw_spin_lock(&irq_controller_lock); - reg = readl(main_int_base + ARMADA_370_XP_INT_SOURCE_CTL(hwirq)); - reg = (reg & (~online_mask)) | new_mask; + reg = (reg & (~ARMADA_370_XP_INT_SOURCE_CPU_MASK)) | mask; writel(reg, main_int_base + ARMADA_370_XP_INT_SOURCE_CTL(hwirq)); - raw_spin_unlock(&irq_controller_lock); return 0; @@ -494,15 +489,6 @@ static int __init armada_370_xp_mpic_of_init(struct device_node *node, #ifdef CONFIG_SMP armada_xp_mpic_smp_cpu_init(); - - /* - * Set the default affinity from all CPUs to the boot cpu. - * This is required since the MPIC doesn't limit several CPUs - * from acknowledging the same interrupt. - */ - cpumask_clear(irq_default_affinity); - cpumask_set_cpu(smp_processor_id(), irq_default_affinity); - #endif armada_370_xp_msi_init(node, main_int_res.start); diff --git a/drivers/irqchip/irq-crossbar.c b/drivers/irqchip/irq-crossbar.c index fc817d28d1fe..3d15d16a7088 100644 --- a/drivers/irqchip/irq-crossbar.c +++ b/drivers/irqchip/irq-crossbar.c @@ -107,7 +107,7 @@ static int __init crossbar_of_init(struct device_node *node) int i, size, max, reserved = 0, entry; const __be32 *irqsr; - cb = kzalloc(sizeof(struct cb_device *), GFP_KERNEL); + cb = kzalloc(sizeof(*cb), GFP_KERNEL); if (!cb) return -ENOMEM; diff --git a/drivers/md/dm-cache-target.c b/drivers/md/dm-cache-target.c index 1bf4a71919ec..9380be7b1895 100644 --- a/drivers/md/dm-cache-target.c +++ b/drivers/md/dm-cache-target.c @@ -2488,6 +2488,7 @@ static int cache_map(struct dm_target *ti, struct bio *bio) } else { inc_hit_counter(cache, bio); + pb->all_io_entry = dm_deferred_entry_inc(cache->all_io_ds); if (bio_data_dir(bio) == WRITE && writethrough_mode(&cache->features) && !is_dirty(cache, lookup_result.cblock)) diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c index 53728be84dee..13abade76ad9 100644 --- a/drivers/md/dm-thin.c +++ b/drivers/md/dm-thin.c @@ -232,6 +232,13 @@ struct thin_c { struct bio_list deferred_bio_list; struct bio_list retry_on_resume_list; struct rb_root sort_bio_list; /* sorted list of deferred bios */ + + /* + * Ensures the thin is not destroyed until the worker has finished + * iterating the active_thins list. + */ + atomic_t refcount; + struct completion can_destroy; }; /*----------------------------------------------------------------*/ @@ -1486,6 +1493,45 @@ static void process_thin_deferred_bios(struct thin_c *tc) blk_finish_plug(&plug); } +static void thin_get(struct thin_c *tc); +static void thin_put(struct thin_c *tc); + +/* + * We can't hold rcu_read_lock() around code that can block. So we + * find a thin with the rcu lock held; bump a refcount; then drop + * the lock. + */ +static struct thin_c *get_first_thin(struct pool *pool) +{ + struct thin_c *tc = NULL; + + rcu_read_lock(); + if (!list_empty(&pool->active_thins)) { + tc = list_entry_rcu(pool->active_thins.next, struct thin_c, list); + thin_get(tc); + } + rcu_read_unlock(); + + return tc; +} + +static struct thin_c *get_next_thin(struct pool *pool, struct thin_c *tc) +{ + struct thin_c *old_tc = tc; + + rcu_read_lock(); + list_for_each_entry_continue_rcu(tc, &pool->active_thins, list) { + thin_get(tc); + thin_put(old_tc); + rcu_read_unlock(); + return tc; + } + thin_put(old_tc); + rcu_read_unlock(); + + return NULL; +} + static void process_deferred_bios(struct pool *pool) { unsigned long flags; @@ -1493,10 +1539,11 @@ static void process_deferred_bios(struct pool *pool) struct bio_list bios; struct thin_c *tc; - rcu_read_lock(); - list_for_each_entry_rcu(tc, &pool->active_thins, list) + tc = get_first_thin(pool); + while (tc) { process_thin_deferred_bios(tc); - rcu_read_unlock(); + tc = get_next_thin(pool, tc); + } /* * If there are any deferred flush bios, we must commit @@ -1578,7 +1625,7 @@ static void noflush_work(struct thin_c *tc, void (*fn)(struct work_struct *)) { struct noflush_work w; - INIT_WORK(&w.worker, fn); + INIT_WORK_ONSTACK(&w.worker, fn); w.tc = tc; atomic_set(&w.complete, 0); init_waitqueue_head(&w.wait); @@ -3061,11 +3108,25 @@ static struct target_type pool_target = { /*---------------------------------------------------------------- * Thin target methods *--------------------------------------------------------------*/ +static void thin_get(struct thin_c *tc) +{ + atomic_inc(&tc->refcount); +} + +static void thin_put(struct thin_c *tc) +{ + if (atomic_dec_and_test(&tc->refcount)) + complete(&tc->can_destroy); +} + static void thin_dtr(struct dm_target *ti) { struct thin_c *tc = ti->private; unsigned long flags; + thin_put(tc); + wait_for_completion(&tc->can_destroy); + spin_lock_irqsave(&tc->pool->lock, flags); list_del_rcu(&tc->list); spin_unlock_irqrestore(&tc->pool->lock, flags); @@ -3101,6 +3162,7 @@ static int thin_ctr(struct dm_target *ti, unsigned argc, char **argv) struct thin_c *tc; struct dm_dev *pool_dev, *origin_dev; struct mapped_device *pool_md; + unsigned long flags; mutex_lock(&dm_thin_pool_table.mutex); @@ -3191,9 +3253,12 @@ static int thin_ctr(struct dm_target *ti, unsigned argc, char **argv) mutex_unlock(&dm_thin_pool_table.mutex); - spin_lock(&tc->pool->lock); + atomic_set(&tc->refcount, 1); + init_completion(&tc->can_destroy); + + spin_lock_irqsave(&tc->pool->lock, flags); list_add_tail_rcu(&tc->list, &tc->pool->active_thins); - spin_unlock(&tc->pool->lock); + spin_unlock_irqrestore(&tc->pool->lock, flags); /* * This synchronize_rcu() call is needed here otherwise we risk a * wake_worker() call finding no bios to process (because the newly diff --git a/drivers/md/dm-verity.c b/drivers/md/dm-verity.c index 796007a5e0e1..7a7bab8947ae 100644 --- a/drivers/md/dm-verity.c +++ b/drivers/md/dm-verity.c @@ -330,15 +330,17 @@ test_block_hash: return r; } } - todo = 1 << v->data_dev_block_bits; - while (io->iter.bi_size) { + do { u8 *page; + unsigned len; struct bio_vec bv = bio_iter_iovec(bio, io->iter); page = kmap_atomic(bv.bv_page); - r = crypto_shash_update(desc, page + bv.bv_offset, - bv.bv_len); + len = bv.bv_len; + if (likely(len >= todo)) + len = todo; + r = crypto_shash_update(desc, page + bv.bv_offset, len); kunmap_atomic(page); if (r < 0) { @@ -346,8 +348,9 @@ test_block_hash: return r; } - bio_advance_iter(bio, &io->iter, bv.bv_len); - } + bio_advance_iter(bio, &io->iter, len); + todo -= len; + } while (todo); if (!v->version) { r = crypto_shash_update(desc, v->salt, v->salt_size); diff --git a/drivers/mtd/ubi/block.c b/drivers/mtd/ubi/block.c index 7ff473c871a9..8d659e6a1b4c 100644 --- a/drivers/mtd/ubi/block.c +++ b/drivers/mtd/ubi/block.c @@ -431,7 +431,7 @@ int ubiblock_create(struct ubi_volume_info *vi) * Create one workqueue per volume (per registered block device). * Rembember workqueues are cheap, they're not threads. */ - dev->wq = alloc_workqueue(gd->disk_name, 0, 0); + dev->wq = alloc_workqueue("%s", 0, 0, gd->disk_name); if (!dev->wq) goto out_free_queue; INIT_WORK(&dev->work, ubiblock_do_work); diff --git a/drivers/mtd/ubi/wl.c b/drivers/mtd/ubi/wl.c index 02317c1c0238..0f3425dac910 100644 --- a/drivers/mtd/ubi/wl.c +++ b/drivers/mtd/ubi/wl.c @@ -671,6 +671,8 @@ static struct ubi_wl_entry *get_peb_for_wl(struct ubi_device *ubi) e = find_wl_entry(ubi, &ubi->free, WL_FREE_MAX_DIFF); self_check_in_wl_tree(ubi, e, &ubi->free); + ubi->free_count--; + ubi_assert(ubi->free_count >= 0); rb_erase(&e->u.rb, &ubi->free); return e; @@ -684,6 +686,9 @@ int ubi_wl_get_peb(struct ubi_device *ubi) peb = __wl_get_peb(ubi); spin_unlock(&ubi->wl_lock); + if (peb < 0) + return peb; + err = ubi_self_check_all_ff(ubi, peb, ubi->vid_hdr_aloffset, ubi->peb_size - ubi->vid_hdr_aloffset); if (err) { @@ -1068,6 +1073,7 @@ static int wear_leveling_worker(struct ubi_device *ubi, struct ubi_work *wrk, /* Give the unused PEB back */ wl_tree_add(e2, &ubi->free); + ubi->free_count++; goto out_cancel; } self_check_in_wl_tree(ubi, e1, &ubi->used); diff --git a/drivers/of/irq.c b/drivers/of/irq.c index 9bcf2cf19357..5aeb89411350 100644 --- a/drivers/of/irq.c +++ b/drivers/of/irq.c @@ -364,7 +364,7 @@ int of_irq_to_resource(struct device_node *dev, int index, struct resource *r) memset(r, 0, sizeof(*r)); /* - * Get optional "interrupts-names" property to add a name + * Get optional "interrupt-names" property to add a name * to the resource. */ of_property_read_string_index(dev, "interrupt-names", index, @@ -380,6 +380,32 @@ int of_irq_to_resource(struct device_node *dev, int index, struct resource *r) EXPORT_SYMBOL_GPL(of_irq_to_resource); /** + * of_irq_get - Decode a node's IRQ and return it as a Linux irq number + * @dev: pointer to device tree node + * @index: zero-based index of the irq + * + * Returns Linux irq number on success, or -EPROBE_DEFER if the irq domain + * is not yet created. + * + */ +int of_irq_get(struct device_node *dev, int index) +{ + int rc; + struct of_phandle_args oirq; + struct irq_domain *domain; + + rc = of_irq_parse_one(dev, index, &oirq); + if (rc) + return rc; + + domain = irq_find_host(oirq.np); + if (!domain) + return -EPROBE_DEFER; + + return irq_create_of_mapping(&oirq); +} + +/** * of_irq_count - Count the number of IRQs a node uses * @dev: pointer to device tree node */ diff --git a/drivers/of/platform.c b/drivers/of/platform.c index 404d1daebefa..bd47fbc53dc9 100644 --- a/drivers/of/platform.c +++ b/drivers/of/platform.c @@ -168,7 +168,9 @@ struct platform_device *of_device_alloc(struct device_node *np, rc = of_address_to_resource(np, i, res); WARN_ON(rc); } - WARN_ON(of_irq_to_resource_table(np, res, num_irq) != num_irq); + if (of_irq_to_resource_table(np, res, num_irq) != num_irq) + pr_debug("not all legacy IRQ resources mapped for %s\n", + np->name); } dev->dev.of_node = of_node_get(np); diff --git a/drivers/of/selftest.c b/drivers/of/selftest.c index ae4450070503..fe70b86bcffb 100644 --- a/drivers/of/selftest.c +++ b/drivers/of/selftest.c @@ -10,6 +10,7 @@ #include <linux/module.h> #include <linux/of.h> #include <linux/of_irq.h> +#include <linux/of_platform.h> #include <linux/list.h> #include <linux/mutex.h> #include <linux/slab.h> @@ -427,6 +428,36 @@ static void __init of_selftest_match_node(void) } } +static void __init of_selftest_platform_populate(void) +{ + int irq; + struct device_node *np; + struct platform_device *pdev; + + np = of_find_node_by_path("/testcase-data"); + of_platform_populate(np, of_default_bus_match_table, NULL, NULL); + + /* Test that a missing irq domain returns -EPROBE_DEFER */ + np = of_find_node_by_path("/testcase-data/testcase-device1"); + pdev = of_find_device_by_node(np); + if (!pdev) + selftest(0, "device 1 creation failed\n"); + irq = platform_get_irq(pdev, 0); + if (irq != -EPROBE_DEFER) + selftest(0, "device deferred probe failed - %d\n", irq); + + /* Test that a parsing failure does not return -EPROBE_DEFER */ + np = of_find_node_by_path("/testcase-data/testcase-device2"); + pdev = of_find_device_by_node(np); + if (!pdev) + selftest(0, "device 2 creation failed\n"); + irq = platform_get_irq(pdev, 0); + if (irq >= 0 || irq == -EPROBE_DEFER) + selftest(0, "device parsing error failed - %d\n", irq); + + selftest(1, "passed"); +} + static int __init of_selftest(void) { struct device_node *np; @@ -445,6 +476,7 @@ static int __init of_selftest(void) of_selftest_parse_interrupts(); of_selftest_parse_interrupts_extended(); of_selftest_match_node(); + of_selftest_platform_populate(); pr_info("end of selftest - %i passed, %i failed\n", selftest_results.passed, selftest_results.failed); return 0; diff --git a/drivers/of/testcase-data/tests-interrupts.dtsi b/drivers/of/testcase-data/tests-interrupts.dtsi index c843720bd3e5..da4695f60351 100644 --- a/drivers/of/testcase-data/tests-interrupts.dtsi +++ b/drivers/of/testcase-data/tests-interrupts.dtsi @@ -54,5 +54,18 @@ <&test_intmap1 1 2>; }; }; + + testcase-device1 { + compatible = "testcase-device"; + interrupt-parent = <&test_intc0>; + interrupts = <1>; + }; + + testcase-device2 { + compatible = "testcase-device"; + interrupt-parent = <&test_intc2>; + interrupts = <1>; /* invalid specifier - too short */ + }; }; + }; diff --git a/drivers/pinctrl/pinctrl-as3722.c b/drivers/pinctrl/pinctrl-as3722.c index 92ed4b2e3c07..c862f9c0e9ce 100644 --- a/drivers/pinctrl/pinctrl-as3722.c +++ b/drivers/pinctrl/pinctrl-as3722.c @@ -64,7 +64,6 @@ struct as3722_pin_function { }; struct as3722_gpio_pin_control { - bool enable_gpio_invert; unsigned mode_prop; int io_function; }; @@ -320,10 +319,8 @@ static int as3722_pinctrl_gpio_set_direction(struct pinctrl_dev *pctldev, return mode; } - if (as_pci->gpio_control[offset].enable_gpio_invert) - mode |= AS3722_GPIO_INV; - - return as3722_write(as3722, AS3722_GPIOn_CONTROL_REG(offset), mode); + return as3722_update_bits(as3722, AS3722_GPIOn_CONTROL_REG(offset), + AS3722_GPIO_MODE_MASK, mode); } static const struct pinmux_ops as3722_pinmux_ops = { @@ -496,10 +493,18 @@ static void as3722_gpio_set(struct gpio_chip *chip, unsigned offset, { struct as3722_pctrl_info *as_pci = to_as_pci(chip); struct as3722 *as3722 = as_pci->as3722; - int en_invert = as_pci->gpio_control[offset].enable_gpio_invert; + int en_invert; u32 val; int ret; + ret = as3722_read(as3722, AS3722_GPIOn_CONTROL_REG(offset), &val); + if (ret < 0) { + dev_err(as_pci->dev, + "GPIO_CONTROL%d_REG read failed: %d\n", offset, ret); + return; + } + en_invert = !!(val & AS3722_GPIO_INV); + if (value) val = (en_invert) ? 0 : AS3722_GPIOn_SIGNAL(offset); else diff --git a/drivers/pinctrl/pinctrl-single.c b/drivers/pinctrl/pinctrl-single.c index 81075f2a1d3f..2960557bfed9 100644 --- a/drivers/pinctrl/pinctrl-single.c +++ b/drivers/pinctrl/pinctrl-single.c @@ -810,6 +810,7 @@ static const struct pinconf_ops pcs_pinconf_ops = { static int pcs_add_pin(struct pcs_device *pcs, unsigned offset, unsigned pin_pos) { + struct pcs_soc_data *pcs_soc = &pcs->socdata; struct pinctrl_pin_desc *pin; struct pcs_name *pn; int i; @@ -821,6 +822,18 @@ static int pcs_add_pin(struct pcs_device *pcs, unsigned offset, return -ENOMEM; } + if (pcs_soc->irq_enable_mask) { + unsigned val; + + val = pcs->read(pcs->base + offset); + if (val & pcs_soc->irq_enable_mask) { + dev_dbg(pcs->dev, "irq enabled at boot for pin at %lx (%x), clearing\n", + (unsigned long)pcs->res->start + offset, val); + val &= ~pcs_soc->irq_enable_mask; + pcs->write(val, pcs->base + offset); + } + } + pin = &pcs->pins.pa[i]; pn = &pcs->names[i]; sprintf(pn->name, "%lx.%d", diff --git a/drivers/pinctrl/pinctrl-tb10x.c b/drivers/pinctrl/pinctrl-tb10x.c index c5e0f6973a3b..26ca6855f478 100644 --- a/drivers/pinctrl/pinctrl-tb10x.c +++ b/drivers/pinctrl/pinctrl-tb10x.c @@ -629,9 +629,8 @@ static int tb10x_gpio_request_enable(struct pinctrl_dev *pctl, */ for (i = 0; i < state->pinfuncgrpcnt; i++) { const struct tb10x_pinfuncgrp *pfg = &state->pingroups[i]; - unsigned int port = pfg->port; unsigned int mode = pfg->mode; - int j; + int j, port = pfg->port; /* * Skip pin groups which are always mapped and don't need diff --git a/drivers/pinctrl/sh-pfc/pfc-r8a7790.c b/drivers/pinctrl/sh-pfc/pfc-r8a7790.c index 48093719167a..f5cd3f961808 100644 --- a/drivers/pinctrl/sh-pfc/pfc-r8a7790.c +++ b/drivers/pinctrl/sh-pfc/pfc-r8a7790.c @@ -4794,8 +4794,7 @@ static const struct pinmux_cfg_reg pinmux_config_regs[] = { FN_MSIOF0_SCK_B, 0, /* IP5_23_21 [3] */ FN_WE1_N, FN_IERX, FN_CAN1_RX, FN_VI1_G4, - FN_VI1_G4_B, FN_VI2_R6, FN_SCIFA0_CTS_N_B, - FN_IERX_C, 0, + FN_VI1_G4_B, FN_VI2_R6, FN_SCIFA0_CTS_N_B, FN_IERX_C, /* IP5_20_18 [3] */ FN_WE0_N, FN_IECLK, FN_CAN_CLK, FN_VI2_VSYNC_N, FN_SCIFA0_TXD_B, FN_VI2_VSYNC_N_B, 0, 0, diff --git a/drivers/pinctrl/sh-pfc/pfc-r8a7791.c b/drivers/pinctrl/sh-pfc/pfc-r8a7791.c index 5186d70c49d4..7868bf3a0f91 100644 --- a/drivers/pinctrl/sh-pfc/pfc-r8a7791.c +++ b/drivers/pinctrl/sh-pfc/pfc-r8a7791.c @@ -5288,7 +5288,7 @@ static const struct pinmux_cfg_reg pinmux_config_regs[] = { /* SEL_SCIF3 [2] */ FN_SEL_SCIF3_0, FN_SEL_SCIF3_1, FN_SEL_SCIF3_2, FN_SEL_SCIF3_3, /* SEL_IEB [2] */ - FN_SEL_IEB_0, FN_SEL_IEB_1, FN_SEL_IEB_2, + FN_SEL_IEB_0, FN_SEL_IEB_1, FN_SEL_IEB_2, 0, /* SEL_MMC [1] */ FN_SEL_MMC_0, FN_SEL_MMC_1, /* SEL_SCIF5 [1] */ diff --git a/drivers/pnp/pnpacpi/core.c b/drivers/pnp/pnpacpi/core.c index 9f611cbbc294..c31aa07b3ba5 100644 --- a/drivers/pnp/pnpacpi/core.c +++ b/drivers/pnp/pnpacpi/core.c @@ -83,8 +83,7 @@ static int pnpacpi_set_resources(struct pnp_dev *dev) { struct acpi_device *acpi_dev; acpi_handle handle; - struct acpi_buffer buffer; - int ret; + int ret = 0; pnp_dbg(&dev->dev, "set resources\n"); @@ -97,19 +96,26 @@ static int pnpacpi_set_resources(struct pnp_dev *dev) if (WARN_ON_ONCE(acpi_dev != dev->data)) dev->data = acpi_dev; - ret = pnpacpi_build_resource_template(dev, &buffer); - if (ret) - return ret; - ret = pnpacpi_encode_resources(dev, &buffer); - if (ret) { + if (acpi_has_method(handle, METHOD_NAME__SRS)) { + struct acpi_buffer buffer; + + ret = pnpacpi_build_resource_template(dev, &buffer); + if (ret) + return ret; + + ret = pnpacpi_encode_resources(dev, &buffer); + if (!ret) { + acpi_status status; + + status = acpi_set_current_resources(handle, &buffer); + if (ACPI_FAILURE(status)) + ret = -EIO; + } kfree(buffer.pointer); - return ret; } - if (ACPI_FAILURE(acpi_set_current_resources(handle, &buffer))) - ret = -EINVAL; - else if (acpi_bus_power_manageable(handle)) + if (!ret && acpi_bus_power_manageable(handle)) ret = acpi_bus_set_power(handle, ACPI_STATE_D0); - kfree(buffer.pointer); + return ret; } @@ -117,7 +123,7 @@ static int pnpacpi_disable_resources(struct pnp_dev *dev) { struct acpi_device *acpi_dev; acpi_handle handle; - int ret; + acpi_status status; dev_dbg(&dev->dev, "disable resources\n"); @@ -128,13 +134,15 @@ static int pnpacpi_disable_resources(struct pnp_dev *dev) } /* acpi_unregister_gsi(pnp_irq(dev, 0)); */ - ret = 0; if (acpi_bus_power_manageable(handle)) acpi_bus_set_power(handle, ACPI_STATE_D3_COLD); - /* continue even if acpi_bus_set_power() fails */ - if (ACPI_FAILURE(acpi_evaluate_object(handle, "_DIS", NULL, NULL))) - ret = -ENODEV; - return ret; + + /* continue even if acpi_bus_set_power() fails */ + status = acpi_evaluate_object(handle, "_DIS", NULL, NULL); + if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) + return -ENODEV; + + return 0; } #ifdef CONFIG_ACPI_SLEEP diff --git a/drivers/pnp/quirks.c b/drivers/pnp/quirks.c index 3736bc408adb..ebf0d6710b5a 100644 --- a/drivers/pnp/quirks.c +++ b/drivers/pnp/quirks.c @@ -335,7 +335,7 @@ static void quirk_amd_mmconfig_area(struct pnp_dev *dev) } #endif -#ifdef CONFIG_X86 +#ifdef CONFIG_PCI /* Device IDs of parts that have 32KB MCH space */ static const unsigned int mch_quirk_devices[] = { 0x0154, /* Ivy Bridge */ @@ -440,7 +440,7 @@ static struct pnp_fixup pnp_fixups[] = { #ifdef CONFIG_AMD_NB {"PNP0c01", quirk_amd_mmconfig_area}, #endif -#ifdef CONFIG_X86 +#ifdef CONFIG_PCI {"PNP0c02", quirk_intel_mch}, #endif {""} diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c index 9f0ea6cb6922..e3bf885f4a6c 100644 --- a/drivers/s390/cio/chsc.c +++ b/drivers/s390/cio/chsc.c @@ -541,18 +541,27 @@ static void chsc_process_sei_nt0(struct chsc_sei_nt0_area *sei_area) static void chsc_process_event_information(struct chsc_sei *sei, u64 ntsm) { - do { + static int ntsm_unsupported; + + while (true) { memset(sei, 0, sizeof(*sei)); sei->request.length = 0x0010; sei->request.code = 0x000e; - sei->ntsm = ntsm; + if (!ntsm_unsupported) + sei->ntsm = ntsm; if (chsc(sei)) break; if (sei->response.code != 0x0001) { - CIO_CRW_EVENT(2, "chsc: sei failed (rc=%04x)\n", - sei->response.code); + CIO_CRW_EVENT(2, "chsc: sei failed (rc=%04x, ntsm=%llx)\n", + sei->response.code, sei->ntsm); + + if (sei->response.code == 3 && sei->ntsm) { + /* Fallback for old firmware. */ + ntsm_unsupported = 1; + continue; + } break; } @@ -568,7 +577,10 @@ static void chsc_process_event_information(struct chsc_sei *sei, u64 ntsm) CIO_CRW_EVENT(2, "chsc: unhandled nt: %d\n", sei->nt); break; } - } while (sei->u.nt0_area.flags & 0x80); + + if (!(sei->u.nt0_area.flags & 0x80)) + break; + } } /* diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c index 7f0af4fcc001..6fd7d40b2c4d 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c +++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c @@ -8293,7 +8293,6 @@ _scsih_suspend(struct pci_dev *pdev, pm_message_t state) mpt2sas_base_free_resources(ioc); pci_save_state(pdev); - pci_disable_device(pdev); pci_set_power_state(pdev, device_state); return 0; } diff --git a/drivers/scsi/virtio_scsi.c b/drivers/scsi/virtio_scsi.c index 16bfd50cd3fe..db3b494e5926 100644 --- a/drivers/scsi/virtio_scsi.c +++ b/drivers/scsi/virtio_scsi.c @@ -750,8 +750,12 @@ static void __virtscsi_set_affinity(struct virtio_scsi *vscsi, bool affinity) vscsi->affinity_hint_set = true; } else { - for (i = 0; i < vscsi->num_queues; i++) + for (i = 0; i < vscsi->num_queues; i++) { + if (!vscsi->req_vqs[i].vq) + continue; + virtqueue_set_affinity(vscsi->req_vqs[i].vq, -1); + } vscsi->affinity_hint_set = false; } diff --git a/drivers/staging/iio/resolver/ad2s1200.c b/drivers/staging/iio/resolver/ad2s1200.c index e2b482045158..017d2f8379b7 100644 --- a/drivers/staging/iio/resolver/ad2s1200.c +++ b/drivers/staging/iio/resolver/ad2s1200.c @@ -107,7 +107,7 @@ static int ad2s1200_probe(struct spi_device *spi) int pn, ret = 0; unsigned short *pins = spi->dev.platform_data; - for (pn = 0; pn < AD2S1200_PN; pn++) + for (pn = 0; pn < AD2S1200_PN; pn++) { ret = devm_gpio_request_one(&spi->dev, pins[pn], GPIOF_DIR_OUT, DRV_NAME); if (ret) { @@ -115,6 +115,7 @@ static int ad2s1200_probe(struct spi_device *spi) pins[pn]); return ret; } + } indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st)); if (!indio_dev) return -ENOMEM; diff --git a/drivers/tty/hvc/hvc_console.c b/drivers/tty/hvc/hvc_console.c index 94f9e3a38412..0ff7fda0742f 100644 --- a/drivers/tty/hvc/hvc_console.c +++ b/drivers/tty/hvc/hvc_console.c @@ -190,7 +190,7 @@ static struct tty_driver *hvc_console_device(struct console *c, int *index) return hvc_driver; } -static int __init hvc_console_setup(struct console *co, char *options) +static int hvc_console_setup(struct console *co, char *options) { if (co->index < 0 || co->index >= MAX_NR_HVC_CONSOLES) return -ENODEV; diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c index 41fe8a047d37..fe9d129c8735 100644 --- a/drivers/tty/n_tty.c +++ b/drivers/tty/n_tty.c @@ -2353,8 +2353,12 @@ static ssize_t n_tty_write(struct tty_struct *tty, struct file *file, if (tty->ops->flush_chars) tty->ops->flush_chars(tty); } else { + struct n_tty_data *ldata = tty->disc_data; + while (nr > 0) { + mutex_lock(&ldata->output_lock); c = tty->ops->write(tty, b, nr); + mutex_unlock(&ldata->output_lock); if (c < 0) { retval = c; goto break_out; diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8250/8250_core.c index 0e1bf8858431..2d4bd3929e50 100644 --- a/drivers/tty/serial/8250/8250_core.c +++ b/drivers/tty/serial/8250/8250_core.c @@ -555,7 +555,7 @@ static void serial8250_set_sleep(struct uart_8250_port *p, int sleep) */ if ((p->port.type == PORT_XR17V35X) || (p->port.type == PORT_XR17D15X)) { - serial_out(p, UART_EXAR_SLEEP, 0xff); + serial_out(p, UART_EXAR_SLEEP, sleep ? 0xff : 0); return; } diff --git a/drivers/tty/tty_buffer.c b/drivers/tty/tty_buffer.c index f1d30f6945af..cf78d1985cd8 100644 --- a/drivers/tty/tty_buffer.c +++ b/drivers/tty/tty_buffer.c @@ -255,16 +255,15 @@ static int __tty_buffer_request_room(struct tty_port *port, size_t size, if (change || left < size) { /* This is the slow path - looking for new buffers to use */ if ((n = tty_buffer_alloc(port, size)) != NULL) { - unsigned long iflags; - n->flags = flags; buf->tail = n; - - spin_lock_irqsave(&buf->flush_lock, iflags); b->commit = b->used; + /* paired w/ barrier in flush_to_ldisc(); ensures the + * latest commit value can be read before the head is + * advanced to the next buffer + */ + smp_wmb(); b->next = n; - spin_unlock_irqrestore(&buf->flush_lock, iflags); - } else if (change) size = 0; else @@ -448,27 +447,28 @@ static void flush_to_ldisc(struct work_struct *work) mutex_lock(&buf->lock); while (1) { - unsigned long flags; struct tty_buffer *head = buf->head; + struct tty_buffer *next; int count; /* Ldisc or user is trying to gain exclusive access */ if (atomic_read(&buf->priority)) break; - spin_lock_irqsave(&buf->flush_lock, flags); + next = head->next; + /* paired w/ barrier in __tty_buffer_request_room(); + * ensures commit value read is not stale if the head + * is advancing to the next buffer + */ + smp_rmb(); count = head->commit - head->read; if (!count) { - if (head->next == NULL) { - spin_unlock_irqrestore(&buf->flush_lock, flags); + if (next == NULL) break; - } - buf->head = head->next; - spin_unlock_irqrestore(&buf->flush_lock, flags); + buf->head = next; tty_buffer_free(port, head); continue; } - spin_unlock_irqrestore(&buf->flush_lock, flags); count = receive_buf(tty, head, count); if (!count) @@ -523,7 +523,6 @@ void tty_buffer_init(struct tty_port *port) struct tty_bufhead *buf = &port->buf; mutex_init(&buf->lock); - spin_lock_init(&buf->flush_lock); tty_buffer_reset(&buf->sentinel, 0); buf->head = &buf->sentinel; buf->tail = &buf->sentinel; @@ -112,6 +112,11 @@ struct kioctx { struct work_struct free_work; + /* + * signals when all in-flight requests are done + */ + struct completion *requests_done; + struct { /* * This counts the number of available slots in the ringbuffer, @@ -508,6 +513,10 @@ static void free_ioctx_reqs(struct percpu_ref *ref) { struct kioctx *ctx = container_of(ref, struct kioctx, reqs); + /* At this point we know that there are no any in-flight requests */ + if (ctx->requests_done) + complete(ctx->requests_done); + INIT_WORK(&ctx->free_work, free_ioctx); schedule_work(&ctx->free_work); } @@ -718,7 +727,8 @@ err: * when the processes owning a context have all exited to encourage * the rapid destruction of the kioctx. */ -static void kill_ioctx(struct mm_struct *mm, struct kioctx *ctx) +static void kill_ioctx(struct mm_struct *mm, struct kioctx *ctx, + struct completion *requests_done) { if (!atomic_xchg(&ctx->dead, 1)) { struct kioctx_table *table; @@ -747,7 +757,11 @@ static void kill_ioctx(struct mm_struct *mm, struct kioctx *ctx) if (ctx->mmap_size) vm_munmap(ctx->mmap_base, ctx->mmap_size); + ctx->requests_done = requests_done; percpu_ref_kill(&ctx->users); + } else { + if (requests_done) + complete(requests_done); } } @@ -809,7 +823,7 @@ void exit_aio(struct mm_struct *mm) */ ctx->mmap_size = 0; - kill_ioctx(mm, ctx); + kill_ioctx(mm, ctx, NULL); } } @@ -1185,7 +1199,7 @@ SYSCALL_DEFINE2(io_setup, unsigned, nr_events, aio_context_t __user *, ctxp) if (!IS_ERR(ioctx)) { ret = put_user(ioctx->user_id, ctxp); if (ret) - kill_ioctx(current->mm, ioctx); + kill_ioctx(current->mm, ioctx, NULL); percpu_ref_put(&ioctx->users); } @@ -1203,8 +1217,22 @@ SYSCALL_DEFINE1(io_destroy, aio_context_t, ctx) { struct kioctx *ioctx = lookup_ioctx(ctx); if (likely(NULL != ioctx)) { - kill_ioctx(current->mm, ioctx); + struct completion requests_done = + COMPLETION_INITIALIZER_ONSTACK(requests_done); + + /* Pass requests_done to kill_ioctx() where it can be set + * in a thread-safe way. If we try to set it here then we have + * a race condition if two io_destroy() called simultaneously. + */ + kill_ioctx(current->mm, ioctx, &requests_done); percpu_ref_put(&ioctx->users); + + /* Wait until all IO for the context are done. Otherwise kernel + * keep using user-space buffers even if user thinks the context + * is destroyed. + */ + wait_for_completion(&requests_done); + return 0; } pr_debug("EINVAL: io_destroy: invalid context id\n"); @@ -1299,10 +1327,8 @@ rw_common: &iovec, compat) : aio_setup_single_vector(req, rw, buf, &nr_segs, iovec); - if (ret) - return ret; - - ret = rw_verify_area(rw, file, &req->ki_pos, req->ki_nbytes); + if (!ret) + ret = rw_verify_area(rw, file, &req->ki_pos, req->ki_nbytes); if (ret < 0) { if (iovec != &inline_vec) kfree(iovec); diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c index 2e5e648eb5c3..c561b628ebce 100644 --- a/fs/ceph/caps.c +++ b/fs/ceph/caps.c @@ -3261,7 +3261,7 @@ int ceph_encode_inode_release(void **p, struct inode *inode, rel->seq = cpu_to_le32(cap->seq); rel->issue_seq = cpu_to_le32(cap->issue_seq), rel->mseq = cpu_to_le32(cap->mseq); - rel->caps = cpu_to_le32(cap->issued); + rel->caps = cpu_to_le32(cap->implemented); rel->wanted = cpu_to_le32(cap->mds_wanted); rel->dname_len = 0; rel->dname_seq = 0; diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c index 766410a12c2c..c29d6ae68874 100644 --- a/fs/ceph/dir.c +++ b/fs/ceph/dir.c @@ -141,7 +141,7 @@ static int __dcache_readdir(struct file *file, struct dir_context *ctx, /* start at beginning? */ if (ctx->pos == 2 || last == NULL || - ctx->pos < ceph_dentry(last)->offset) { + fpos_cmp(ctx->pos, ceph_dentry(last)->offset) < 0) { if (list_empty(&parent->d_subdirs)) goto out_unlock; p = parent->d_subdirs.prev; @@ -182,9 +182,16 @@ more: spin_unlock(&dentry->d_lock); spin_unlock(&parent->d_lock); + /* make sure a dentry wasn't dropped while we didn't have parent lock */ + if (!ceph_dir_is_complete(dir)) { + dout(" lost dir complete on %p; falling back to mds\n", dir); + dput(dentry); + err = -EAGAIN; + goto out; + } + dout(" %llu (%llu) dentry %p %.*s %p\n", di->offset, ctx->pos, dentry, dentry->d_name.len, dentry->d_name.name, dentry->d_inode); - ctx->pos = di->offset; if (!dir_emit(ctx, dentry->d_name.name, dentry->d_name.len, ceph_translate_ino(dentry->d_sb, dentry->d_inode->i_ino), @@ -198,19 +205,12 @@ more: return 0; } + ctx->pos = di->offset + 1; + if (last) dput(last); last = dentry; - ctx->pos++; - - /* make sure a dentry wasn't dropped while we didn't have parent lock */ - if (!ceph_dir_is_complete(dir)) { - dout(" lost dir complete on %p; falling back to mds\n", dir); - err = -EAGAIN; - goto out; - } - spin_lock(&parent->d_lock); p = p->prev; /* advance to next dentry */ goto more; @@ -296,6 +296,8 @@ static int ceph_readdir(struct file *file, struct dir_context *ctx) err = __dcache_readdir(file, ctx, shared_gen); if (err != -EAGAIN) return err; + frag = fpos_frag(ctx->pos); + off = fpos_off(ctx->pos); } else { spin_unlock(&ci->i_ceph_lock); } @@ -446,7 +448,6 @@ more: if (atomic_read(&ci->i_release_count) == fi->dir_release_count) { dout(" marking %p complete\n", inode); __ceph_dir_set_complete(ci, fi->dir_release_count); - ci->i_max_offset = ctx->pos; } spin_unlock(&ci->i_ceph_lock); @@ -935,14 +936,16 @@ static int ceph_rename(struct inode *old_dir, struct dentry *old_dentry, * to do it here. */ - /* d_move screws up d_subdirs order */ - ceph_dir_clear_complete(new_dir); - d_move(old_dentry, new_dentry); /* ensure target dentry is invalidated, despite rehashing bug in vfs_rename_dir */ ceph_invalidate_dentry_lease(new_dentry); + + /* d_move screws up sibling dentries' offsets */ + ceph_dir_clear_complete(old_dir); + ceph_dir_clear_complete(new_dir); + } ceph_mdsc_put_request(req); return err; diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c index 0b0728e5be2d..233c6f96910a 100644 --- a/fs/ceph/inode.c +++ b/fs/ceph/inode.c @@ -744,7 +744,6 @@ static int fill_inode(struct inode *inode, !__ceph_dir_is_complete(ci)) { dout(" marking %p complete (empty)\n", inode); __ceph_dir_set_complete(ci, atomic_read(&ci->i_release_count)); - ci->i_max_offset = 2; } no_change: /* only update max_size on auth cap */ @@ -890,41 +889,6 @@ out_unlock: } /* - * Set dentry's directory position based on the current dir's max, and - * order it in d_subdirs, so that dcache_readdir behaves. - * - * Always called under directory's i_mutex. - */ -static void ceph_set_dentry_offset(struct dentry *dn) -{ - struct dentry *dir = dn->d_parent; - struct inode *inode = dir->d_inode; - struct ceph_inode_info *ci; - struct ceph_dentry_info *di; - - BUG_ON(!inode); - - ci = ceph_inode(inode); - di = ceph_dentry(dn); - - spin_lock(&ci->i_ceph_lock); - if (!__ceph_dir_is_complete(ci)) { - spin_unlock(&ci->i_ceph_lock); - return; - } - di->offset = ceph_inode(inode)->i_max_offset++; - spin_unlock(&ci->i_ceph_lock); - - spin_lock(&dir->d_lock); - spin_lock_nested(&dn->d_lock, DENTRY_D_LOCK_NESTED); - list_move(&dn->d_u.d_child, &dir->d_subdirs); - dout("set_dentry_offset %p %lld (%p %p)\n", dn, di->offset, - dn->d_u.d_child.prev, dn->d_u.d_child.next); - spin_unlock(&dn->d_lock); - spin_unlock(&dir->d_lock); -} - -/* * splice a dentry to an inode. * caller must hold directory i_mutex for this to be safe. * @@ -933,7 +897,7 @@ static void ceph_set_dentry_offset(struct dentry *dn) * the caller) if we fail. */ static struct dentry *splice_dentry(struct dentry *dn, struct inode *in, - bool *prehash, bool set_offset) + bool *prehash) { struct dentry *realdn; @@ -965,8 +929,6 @@ static struct dentry *splice_dentry(struct dentry *dn, struct inode *in, } if ((!prehash || *prehash) && d_unhashed(dn)) d_rehash(dn); - if (set_offset) - ceph_set_dentry_offset(dn); out: return dn; } @@ -987,7 +949,6 @@ int ceph_fill_trace(struct super_block *sb, struct ceph_mds_request *req, { struct ceph_mds_reply_info_parsed *rinfo = &req->r_reply_info; struct inode *in = NULL; - struct ceph_mds_reply_inode *ininfo; struct ceph_vino vino; struct ceph_fs_client *fsc = ceph_sb_to_client(sb); int err = 0; @@ -1161,6 +1122,9 @@ retry_lookup: /* rename? */ if (req->r_old_dentry && req->r_op == CEPH_MDS_OP_RENAME) { + struct inode *olddir = req->r_old_dentry_dir; + BUG_ON(!olddir); + dout(" src %p '%.*s' dst %p '%.*s'\n", req->r_old_dentry, req->r_old_dentry->d_name.len, @@ -1180,13 +1144,10 @@ retry_lookup: rehashing bug in vfs_rename_dir */ ceph_invalidate_dentry_lease(dn); - /* - * d_move() puts the renamed dentry at the end of - * d_subdirs. We need to assign it an appropriate - * directory offset so we can behave when dir is - * complete. - */ - ceph_set_dentry_offset(req->r_old_dentry); + /* d_move screws up sibling dentries' offsets */ + ceph_dir_clear_complete(dir); + ceph_dir_clear_complete(olddir); + dout("dn %p gets new offset %lld\n", req->r_old_dentry, ceph_dentry(req->r_old_dentry)->offset); @@ -1213,8 +1174,9 @@ retry_lookup: /* attach proper inode */ if (!dn->d_inode) { + ceph_dir_clear_complete(dir); ihold(in); - dn = splice_dentry(dn, in, &have_lease, true); + dn = splice_dentry(dn, in, &have_lease); if (IS_ERR(dn)) { err = PTR_ERR(dn); goto done; @@ -1235,17 +1197,16 @@ retry_lookup: (req->r_op == CEPH_MDS_OP_LOOKUPSNAP || req->r_op == CEPH_MDS_OP_MKSNAP)) { struct dentry *dn = req->r_dentry; + struct inode *dir = req->r_locked_dir; /* fill out a snapdir LOOKUPSNAP dentry */ BUG_ON(!dn); - BUG_ON(!req->r_locked_dir); - BUG_ON(ceph_snap(req->r_locked_dir) != CEPH_SNAPDIR); - ininfo = rinfo->targeti.in; - vino.ino = le64_to_cpu(ininfo->ino); - vino.snap = le64_to_cpu(ininfo->snapid); + BUG_ON(!dir); + BUG_ON(ceph_snap(dir) != CEPH_SNAPDIR); dout(" linking snapped dir %p to dn %p\n", in, dn); + ceph_dir_clear_complete(dir); ihold(in); - dn = splice_dentry(dn, in, NULL, true); + dn = splice_dentry(dn, in, NULL); if (IS_ERR(dn)) { err = PTR_ERR(dn); goto done; @@ -1407,7 +1368,7 @@ retry_lookup: } if (!dn->d_inode) { - dn = splice_dentry(dn, in, NULL, false); + dn = splice_dentry(dn, in, NULL); if (IS_ERR(dn)) { err = PTR_ERR(dn); dn = NULL; diff --git a/fs/ceph/ioctl.c b/fs/ceph/ioctl.c index fdf941b44ff1..a822a6e58290 100644 --- a/fs/ceph/ioctl.c +++ b/fs/ceph/ioctl.c @@ -109,6 +109,8 @@ static long ceph_ioctl_set_layout(struct file *file, void __user *arg) return PTR_ERR(req); req->r_inode = inode; ihold(inode); + req->r_num_caps = 1; + req->r_inode_drop = CEPH_CAP_FILE_SHARED | CEPH_CAP_FILE_EXCL; req->r_args.setlayout.layout.fl_stripe_unit = @@ -153,6 +155,7 @@ static long ceph_ioctl_set_layout_policy (struct file *file, void __user *arg) return PTR_ERR(req); req->r_inode = inode; ihold(inode); + req->r_num_caps = 1; req->r_args.setlayout.layout.fl_stripe_unit = cpu_to_le32(l.stripe_unit); diff --git a/fs/ceph/locks.c b/fs/ceph/locks.c index d94ba0df9f4d..191398852a2e 100644 --- a/fs/ceph/locks.c +++ b/fs/ceph/locks.c @@ -45,6 +45,7 @@ static int ceph_lock_message(u8 lock_type, u16 operation, struct file *file, return PTR_ERR(req); req->r_inode = inode; ihold(inode); + req->r_num_caps = 1; /* mds requires start and length rather than start and end */ if (LLONG_MAX == fl->fl_end) diff --git a/fs/ceph/super.h b/fs/ceph/super.h index 7866cd05a6bb..ead05cc1f447 100644 --- a/fs/ceph/super.h +++ b/fs/ceph/super.h @@ -266,7 +266,6 @@ struct ceph_inode_info { struct timespec i_rctime; u64 i_rbytes, i_rfiles, i_rsubdirs; u64 i_files, i_subdirs; - u64 i_max_offset; /* largest readdir offset, set with complete dir */ struct rb_root i_fragtree; struct mutex i_fragtree_mutex; diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c index a1266089eca1..a81c7b556896 100644 --- a/fs/ubifs/super.c +++ b/fs/ubifs/super.c @@ -1556,7 +1556,7 @@ static int ubifs_remount_rw(struct ubifs_info *c) if (c->space_fixup) { err = ubifs_fixup_free_space(c); if (err) - return err; + goto out; } err = check_free_space(c); diff --git a/include/asm-generic/fixmap.h b/include/asm-generic/fixmap.h index 5a64ca4621f3..f23174fb9ec4 100644 --- a/include/asm-generic/fixmap.h +++ b/include/asm-generic/fixmap.h @@ -93,5 +93,8 @@ static inline unsigned long virt_to_fix(const unsigned long vaddr) #define set_fixmap_io(idx, phys) \ __set_fixmap(idx, phys, FIXMAP_PAGE_IO) +#define set_fixmap_offset_io(idx, phys) \ + __set_fixmap_offset(idx, phys, FIXMAP_PAGE_IO) + #endif /* __ASSEMBLY__ */ #endif /* __ASM_GENERIC_FIXMAP_H */ diff --git a/include/asm-generic/word-at-a-time.h b/include/asm-generic/word-at-a-time.h index d96deb443f18..94f9ea8abcae 100644 --- a/include/asm-generic/word-at-a-time.h +++ b/include/asm-generic/word-at-a-time.h @@ -50,7 +50,7 @@ static inline bool has_zero(unsigned long val, unsigned long *data, const struct } #ifndef zero_bytemask -#define zero_bytemask(mask) (~0ul << __fls(mask) << 1) +#define zero_bytemask(mask) (~1ul << __fls(mask)) #endif #endif /* _ASM_WORD_AT_A_TIME_H */ diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h index 9212b017bc72..ae9504b4b67d 100644 --- a/include/linux/ftrace.h +++ b/include/linux/ftrace.h @@ -535,6 +535,7 @@ static inline int ftrace_modify_call(struct dyn_ftrace *rec, unsigned long old_a extern int ftrace_arch_read_dyn_info(char *buf, int size); extern int skip_trace(unsigned long ip); +extern void ftrace_module_init(struct module *mod); extern void ftrace_disable_daemon(void); extern void ftrace_enable_daemon(void); @@ -544,6 +545,7 @@ static inline int ftrace_force_update(void) { return 0; } static inline void ftrace_disable_daemon(void) { } static inline void ftrace_enable_daemon(void) { } static inline void ftrace_release_mod(struct module *mod) {} +static inline void ftrace_module_init(struct module *mod) {} static inline __init int register_ftrace_command(struct ftrace_func_command *cmd) { return -EINVAL; diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h index 8834a7e5b944..97ac926c78a7 100644 --- a/include/linux/interrupt.h +++ b/include/linux/interrupt.h @@ -210,7 +210,7 @@ extern int __irq_set_affinity(unsigned int irq, const struct cpumask *cpumask, /** * irq_set_affinity - Set the irq affinity of a given irq * @irq: Interrupt to set affinity - * @mask: cpumask + * @cpumask: cpumask * * Fails if cpumask does not contain an online CPU */ @@ -223,7 +223,7 @@ irq_set_affinity(unsigned int irq, const struct cpumask *cpumask) /** * irq_force_affinity - Force the irq affinity of a given irq * @irq: Interrupt to set affinity - * @mask: cpumask + * @cpumask: cpumask * * Same as irq_set_affinity, but without checking the mask against * online cpus. diff --git a/include/linux/irq.h b/include/linux/irq.h index 10a0b1ac4ea0..5c57efb863d0 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -603,6 +603,8 @@ static inline u32 irq_get_trigger_type(unsigned int irq) return d ? irqd_get_trigger_type(d) : 0; } +unsigned int arch_dynirq_lower_bound(unsigned int from); + int __irq_alloc_descs(int irq, unsigned int from, unsigned int cnt, int node, struct module *owner); diff --git a/include/linux/of_irq.h b/include/linux/of_irq.h index 3f23b4472c31..6404253d810d 100644 --- a/include/linux/of_irq.h +++ b/include/linux/of_irq.h @@ -44,11 +44,16 @@ extern void of_irq_init(const struct of_device_id *matches); #ifdef CONFIG_OF_IRQ extern int of_irq_count(struct device_node *dev); +extern int of_irq_get(struct device_node *dev, int index); #else static inline int of_irq_count(struct device_node *dev) { return 0; } +static inline int of_irq_get(struct device_node *dev, int index) +{ + return 0; +} #endif #if defined(CONFIG_OF) diff --git a/include/linux/tty.h b/include/linux/tty.h index 036cccd80d9f..1c3316a47d7e 100644 --- a/include/linux/tty.h +++ b/include/linux/tty.h @@ -61,7 +61,6 @@ struct tty_bufhead { struct tty_buffer *head; /* Queue head */ struct work_struct work; struct mutex lock; - spinlock_t flush_lock; atomic_t priority; struct tty_buffer sentinel; struct llist_head free; /* Free queue head */ diff --git a/include/trace/events/module.h b/include/trace/events/module.h index 11fd51b413de..ed0b2c599a64 100644 --- a/include/trace/events/module.h +++ b/include/trace/events/module.h @@ -25,7 +25,7 @@ struct module; { (1UL << TAINT_OOT_MODULE), "O" }, \ { (1UL << TAINT_FORCED_MODULE), "F" }, \ { (1UL << TAINT_CRAP), "C" }, \ - { (1UL << TAINT_UNSIGNED_MODULE), "X" }) + { (1UL << TAINT_UNSIGNED_MODULE), "E" }) TRACE_EVENT(module_load, diff --git a/kernel/hrtimer.c b/kernel/hrtimer.c index d55092ceee29..6b715c0af1b1 100644 --- a/kernel/hrtimer.c +++ b/kernel/hrtimer.c @@ -234,6 +234,11 @@ again: goto again; } timer->base = new_base; + } else { + if (cpu != this_cpu && hrtimer_check_target(timer, new_base)) { + cpu = this_cpu; + goto again; + } } return new_base; } @@ -569,6 +574,23 @@ hrtimer_force_reprogram(struct hrtimer_cpu_base *cpu_base, int skip_equal) cpu_base->expires_next.tv64 = expires_next.tv64; + /* + * If a hang was detected in the last timer interrupt then we + * leave the hang delay active in the hardware. We want the + * system to make progress. That also prevents the following + * scenario: + * T1 expires 50ms from now + * T2 expires 5s from now + * + * T1 is removed, so this code is called and would reprogram + * the hardware to 5s from now. Any hrtimer_start after that + * will not reprogram the hardware due to hang_detected being + * set. So we'd effectivly block all timers until the T2 event + * fires. + */ + if (cpu_base->hang_detected) + return; + if (cpu_base->expires_next.tv64 != KTIME_MAX) tick_program_event(cpu_base->expires_next, 1); } diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c index a7174617616b..bb07f2928f4b 100644 --- a/kernel/irq/irqdesc.c +++ b/kernel/irq/irqdesc.c @@ -363,6 +363,13 @@ __irq_alloc_descs(int irq, unsigned int from, unsigned int cnt, int node, if (from > irq) return -EINVAL; from = irq; + } else { + /* + * For interrupts which are freely allocated the + * architecture can force a lower bound to the @from + * argument. x86 uses this to exclude the GSI space. + */ + from = arch_dynirq_lower_bound(from); } mutex_lock(&sparse_irq_lock); diff --git a/kernel/module.c b/kernel/module.c index 11869408f79b..079c4615607d 100644 --- a/kernel/module.c +++ b/kernel/module.c @@ -815,9 +815,6 @@ SYSCALL_DEFINE2(delete_module, const char __user *, name_user, return -EFAULT; name[MODULE_NAME_LEN-1] = '\0'; - if (!(flags & O_NONBLOCK)) - pr_warn("waiting module removal not supported: please upgrade\n"); - if (mutex_lock_interruptible(&module_mutex) != 0) return -EINTR; @@ -3271,6 +3268,9 @@ static int load_module(struct load_info *info, const char __user *uargs, dynamic_debug_setup(info->debug, info->num_debug); + /* Ftrace init must be called in the MODULE_STATE_UNFORMED state */ + ftrace_module_init(mod); + /* Finally it's fully formed, ready to start executing. */ err = complete_formation(mod, info); if (err) diff --git a/kernel/softirq.c b/kernel/softirq.c index b50990a5bea0..33e4648ae0e7 100644 --- a/kernel/softirq.c +++ b/kernel/softirq.c @@ -779,3 +779,8 @@ int __init __weak arch_early_irq_init(void) { return 0; } + +unsigned int __weak arch_dynirq_lower_bound(unsigned int from) +{ + return from; +} diff --git a/kernel/timer.c b/kernel/timer.c index 87bd529879c2..3bb01a323b2a 100644 --- a/kernel/timer.c +++ b/kernel/timer.c @@ -838,7 +838,7 @@ unsigned long apply_slack(struct timer_list *timer, unsigned long expires) bit = find_last_bit(&mask, BITS_PER_LONG); - mask = (1 << bit) - 1; + mask = (1UL << bit) - 1; expires_limit = expires_limit & ~(mask); diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index 1fd4b9479210..4a54a25afa2f 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -4330,16 +4330,11 @@ static void ftrace_init_module(struct module *mod, ftrace_process_locs(mod, start, end); } -static int ftrace_module_notify_enter(struct notifier_block *self, - unsigned long val, void *data) +void ftrace_module_init(struct module *mod) { - struct module *mod = data; - - if (val == MODULE_STATE_COMING) - ftrace_init_module(mod, mod->ftrace_callsites, - mod->ftrace_callsites + - mod->num_ftrace_callsites); - return 0; + ftrace_init_module(mod, mod->ftrace_callsites, + mod->ftrace_callsites + + mod->num_ftrace_callsites); } static int ftrace_module_notify_exit(struct notifier_block *self, @@ -4353,11 +4348,6 @@ static int ftrace_module_notify_exit(struct notifier_block *self, return 0; } #else -static int ftrace_module_notify_enter(struct notifier_block *self, - unsigned long val, void *data) -{ - return 0; -} static int ftrace_module_notify_exit(struct notifier_block *self, unsigned long val, void *data) { @@ -4365,11 +4355,6 @@ static int ftrace_module_notify_exit(struct notifier_block *self, } #endif /* CONFIG_MODULES */ -struct notifier_block ftrace_module_enter_nb = { - .notifier_call = ftrace_module_notify_enter, - .priority = INT_MAX, /* Run before anything that can use kprobes */ -}; - struct notifier_block ftrace_module_exit_nb = { .notifier_call = ftrace_module_notify_exit, .priority = INT_MIN, /* Run after anything that can remove kprobes */ @@ -4403,10 +4388,6 @@ void __init ftrace_init(void) __start_mcount_loc, __stop_mcount_loc); - ret = register_module_notifier(&ftrace_module_enter_nb); - if (ret) - pr_warning("Failed to register trace ftrace module enter notifier\n"); - ret = register_module_notifier(&ftrace_module_exit_nb); if (ret) pr_warning("Failed to register trace ftrace module exit notifier\n"); diff --git a/kernel/trace/trace_events_trigger.c b/kernel/trace/trace_events_trigger.c index 925f537f07d1..4747b476a030 100644 --- a/kernel/trace/trace_events_trigger.c +++ b/kernel/trace/trace_events_trigger.c @@ -77,7 +77,7 @@ event_triggers_call(struct ftrace_event_file *file, void *rec) data->ops->func(data); continue; } - filter = rcu_dereference(data->filter); + filter = rcu_dereference_sched(data->filter); if (filter && !filter_match_preds(filter, rec)) continue; if (data->cmd_ops->post_trigger) { diff --git a/mm/vmacache.c b/mm/vmacache.c index d4224b397c0e..1037a3bab505 100644 --- a/mm/vmacache.c +++ b/mm/vmacache.c @@ -81,10 +81,12 @@ struct vm_area_struct *vmacache_find(struct mm_struct *mm, unsigned long addr) for (i = 0; i < VMACACHE_SIZE; i++) { struct vm_area_struct *vma = current->vmacache[i]; - if (vma && vma->vm_start <= addr && vma->vm_end > addr) { - BUG_ON(vma->vm_mm != mm); + if (!vma) + continue; + if (WARN_ON_ONCE(vma->vm_mm != mm)) + break; + if (vma->vm_start <= addr && vma->vm_end > addr) return vma; - } } return NULL; diff --git a/net/ceph/osdmap.c b/net/ceph/osdmap.c index e632b5a52f5b..8b8a5a24b223 100644 --- a/net/ceph/osdmap.c +++ b/net/ceph/osdmap.c @@ -1548,8 +1548,10 @@ static void apply_primary_affinity(struct ceph_osdmap *osdmap, u32 pps, return; for (i = 0; i < len; i++) { - if (osds[i] != CRUSH_ITEM_NONE && - osdmap->osd_primary_affinity[i] != + int osd = osds[i]; + + if (osd != CRUSH_ITEM_NONE && + osdmap->osd_primary_affinity[osd] != CEPH_OSD_DEFAULT_PRIMARY_AFFINITY) { break; } @@ -1563,10 +1565,9 @@ static void apply_primary_affinity(struct ceph_osdmap *osdmap, u32 pps, * osd's pgs get rejected as primary. */ for (i = 0; i < len; i++) { - int osd; + int osd = osds[i]; u32 aff; - osd = osds[i]; if (osd == CRUSH_ITEM_NONE) continue; diff --git a/scripts/sortextable.c b/scripts/sortextable.c index cc49062acdee..1052d4834a44 100644 --- a/scripts/sortextable.c +++ b/scripts/sortextable.c @@ -35,6 +35,10 @@ #define EM_ARCOMPACT 93 #endif +#ifndef EM_XTENSA +#define EM_XTENSA 94 +#endif + #ifndef EM_AARCH64 #define EM_AARCH64 183 #endif @@ -281,6 +285,7 @@ do_file(char const *const fname) case EM_AARCH64: case EM_MICROBLAZE: case EM_MIPS: + case EM_XTENSA: break; } /* end switch */ diff --git a/sound/pci/hda/hda_controller.c b/sound/pci/hda/hda_controller.c index 248b90abb882..480bbddbd801 100644 --- a/sound/pci/hda/hda_controller.c +++ b/sound/pci/hda/hda_controller.c @@ -1059,24 +1059,26 @@ static void azx_init_cmd_io(struct azx *chip) /* reset the corb hw read pointer */ azx_writew(chip, CORBRP, ICH6_CORBRP_RST); - for (timeout = 1000; timeout > 0; timeout--) { - if ((azx_readw(chip, CORBRP) & ICH6_CORBRP_RST) == ICH6_CORBRP_RST) - break; - udelay(1); - } - if (timeout <= 0) - dev_err(chip->card->dev, "CORB reset timeout#1, CORBRP = %d\n", - azx_readw(chip, CORBRP)); + if (!(chip->driver_caps & AZX_DCAPS_CORBRP_SELF_CLEAR)) { + for (timeout = 1000; timeout > 0; timeout--) { + if ((azx_readw(chip, CORBRP) & ICH6_CORBRP_RST) == ICH6_CORBRP_RST) + break; + udelay(1); + } + if (timeout <= 0) + dev_err(chip->card->dev, "CORB reset timeout#1, CORBRP = %d\n", + azx_readw(chip, CORBRP)); - azx_writew(chip, CORBRP, 0); - for (timeout = 1000; timeout > 0; timeout--) { - if (azx_readw(chip, CORBRP) == 0) - break; - udelay(1); + azx_writew(chip, CORBRP, 0); + for (timeout = 1000; timeout > 0; timeout--) { + if (azx_readw(chip, CORBRP) == 0) + break; + udelay(1); + } + if (timeout <= 0) + dev_err(chip->card->dev, "CORB reset timeout#2, CORBRP = %d\n", + azx_readw(chip, CORBRP)); } - if (timeout <= 0) - dev_err(chip->card->dev, "CORB reset timeout#2, CORBRP = %d\n", - azx_readw(chip, CORBRP)); /* enable corb dma */ azx_writeb(chip, CORBCTL, ICH6_CORBCTL_RUN); diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index d6bca62ef387..b540ad71eb0d 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -249,7 +249,8 @@ enum { /* quirks for Nvidia */ #define AZX_DCAPS_PRESET_NVIDIA \ (AZX_DCAPS_NVIDIA_SNOOP | AZX_DCAPS_RIRB_DELAY | AZX_DCAPS_NO_MSI |\ - AZX_DCAPS_ALIGN_BUFSIZE | AZX_DCAPS_NO_64BIT) + AZX_DCAPS_ALIGN_BUFSIZE | AZX_DCAPS_NO_64BIT |\ + AZX_DCAPS_CORBRP_SELF_CLEAR) #define AZX_DCAPS_PRESET_CTHDA \ (AZX_DCAPS_NO_MSI | AZX_DCAPS_POSFIX_LPIB | AZX_DCAPS_4K_BDLE_BOUNDARY) diff --git a/sound/pci/hda/hda_priv.h b/sound/pci/hda/hda_priv.h index ba38b819f984..4a7cb01fa912 100644 --- a/sound/pci/hda/hda_priv.h +++ b/sound/pci/hda/hda_priv.h @@ -189,6 +189,7 @@ enum { SDI0, SDI1, SDI2, SDI3, SDO0, SDO1, SDO2, SDO3 }; #define AZX_DCAPS_COUNT_LPIB_DELAY (1 << 25) /* Take LPIB as delay */ #define AZX_DCAPS_PM_RUNTIME (1 << 26) /* runtime PM support */ #define AZX_DCAPS_I915_POWERWELL (1 << 27) /* HSW i915 powerwell support */ +#define AZX_DCAPS_CORBRP_SELF_CLEAR (1 << 28) /* CORBRP clears itself after reset */ /* position fix mode */ enum { diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index c643dfc0a826..c1952c910339 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -4621,6 +4621,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = { SND_PCI_QUIRK(0x1028, 0x0667, "Dell", ALC269_FIXUP_DELL1_MIC_NO_PRESENCE), SND_PCI_QUIRK(0x1028, 0x0668, "Dell", ALC255_FIXUP_DELL2_MIC_NO_PRESENCE), SND_PCI_QUIRK(0x1028, 0x0669, "Dell", ALC255_FIXUP_DELL2_MIC_NO_PRESENCE), + SND_PCI_QUIRK(0x1028, 0x0674, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE), SND_PCI_QUIRK(0x1028, 0x067f, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE), SND_PCI_QUIRK(0x1028, 0x15cc, "Dell X5 Precision", ALC269_FIXUP_DELL2_MIC_NO_PRESENCE), SND_PCI_QUIRK(0x1028, 0x15cd, "Dell X5 Precision", ALC269_FIXUP_DELL2_MIC_NO_PRESENCE), diff --git a/sound/soc/codecs/alc5623.c b/sound/soc/codecs/alc5623.c index f500905e9373..2acf82f4a08a 100644 --- a/sound/soc/codecs/alc5623.c +++ b/sound/soc/codecs/alc5623.c @@ -1018,13 +1018,13 @@ static int alc5623_i2c_probe(struct i2c_client *client, dev_err(&client->dev, "failed to read vendor ID1: %d\n", ret); return ret; } - vid1 = ((vid1 & 0xff) << 8) | (vid1 >> 8); ret = regmap_read(alc5623->regmap, ALC5623_VENDOR_ID2, &vid2); if (ret < 0) { dev_err(&client->dev, "failed to read vendor ID2: %d\n", ret); return ret; } + vid2 >>= 8; if ((vid1 != 0x10ec) || (vid2 != id->driver_data)) { dev_err(&client->dev, "unknown or wrong codec\n"); diff --git a/sound/soc/codecs/cs42l52.c b/sound/soc/codecs/cs42l52.c index 460d35547a68..2213a037c893 100644 --- a/sound/soc/codecs/cs42l52.c +++ b/sound/soc/codecs/cs42l52.c @@ -1229,8 +1229,10 @@ static int cs42l52_i2c_probe(struct i2c_client *i2c_client, } if (cs42l52->pdata.reset_gpio) { - ret = gpio_request_one(cs42l52->pdata.reset_gpio, - GPIOF_OUT_INIT_HIGH, "CS42L52 /RST"); + ret = devm_gpio_request_one(&i2c_client->dev, + cs42l52->pdata.reset_gpio, + GPIOF_OUT_INIT_HIGH, + "CS42L52 /RST"); if (ret < 0) { dev_err(&i2c_client->dev, "Failed to request /RST %d: %d\n", cs42l52->pdata.reset_gpio, ret); diff --git a/sound/soc/codecs/cs42l73.c b/sound/soc/codecs/cs42l73.c index 0ee60a19a263..ae3717992d56 100644 --- a/sound/soc/codecs/cs42l73.c +++ b/sound/soc/codecs/cs42l73.c @@ -1443,8 +1443,10 @@ static int cs42l73_i2c_probe(struct i2c_client *i2c_client, i2c_set_clientdata(i2c_client, cs42l73); if (cs42l73->pdata.reset_gpio) { - ret = gpio_request_one(cs42l73->pdata.reset_gpio, - GPIOF_OUT_INIT_HIGH, "CS42L73 /RST"); + ret = devm_gpio_request_one(&i2c_client->dev, + cs42l73->pdata.reset_gpio, + GPIOF_OUT_INIT_HIGH, + "CS42L73 /RST"); if (ret < 0) { dev_err(&i2c_client->dev, "Failed to request /RST %d: %d\n", cs42l73->pdata.reset_gpio, ret); diff --git a/sound/soc/codecs/tlv320aic3x.c b/sound/soc/codecs/tlv320aic3x.c index b1835103e9b4..d7349bc89ad3 100644 --- a/sound/soc/codecs/tlv320aic3x.c +++ b/sound/soc/codecs/tlv320aic3x.c @@ -1399,7 +1399,6 @@ static int aic3x_probe(struct snd_soc_codec *codec) } aic3x_add_widgets(codec); - list_add(&aic3x->list, &reset_list); return 0; @@ -1569,7 +1568,13 @@ static int aic3x_i2c_probe(struct i2c_client *i2c, ret = snd_soc_register_codec(&i2c->dev, &soc_codec_dev_aic3x, &aic3x_dai, 1); - return ret; + + if (ret != 0) + goto err_gpio; + + list_add(&aic3x->list, &reset_list); + + return 0; err_gpio: if (gpio_is_valid(aic3x->gpio_reset) && diff --git a/sound/soc/fsl/fsl_spdif.h b/sound/soc/fsl/fsl_spdif.h index b1266790d117..605a10b2112b 100644 --- a/sound/soc/fsl/fsl_spdif.h +++ b/sound/soc/fsl/fsl_spdif.h @@ -144,8 +144,8 @@ enum spdif_gainsel { /* SPDIF Clock register */ #define STC_SYSCLK_DIV_OFFSET 11 -#define STC_SYSCLK_DIV_MASK (0x1ff << STC_TXCLK_SRC_OFFSET) -#define STC_SYSCLK_DIV(x) ((((x) - 1) << STC_TXCLK_DIV_OFFSET) & STC_SYSCLK_DIV_MASK) +#define STC_SYSCLK_DIV_MASK (0x1ff << STC_SYSCLK_DIV_OFFSET) +#define STC_SYSCLK_DIV(x) ((((x) - 1) << STC_SYSCLK_DIV_OFFSET) & STC_SYSCLK_DIV_MASK) #define STC_TXCLK_SRC_OFFSET 8 #define STC_TXCLK_SRC_MASK (0x7 << STC_TXCLK_SRC_OFFSET) #define STC_TXCLK_SRC_SET(x) ((x << STC_TXCLK_SRC_OFFSET) & STC_TXCLK_SRC_MASK) diff --git a/sound/soc/intel/sst-dsp-priv.h b/sound/soc/intel/sst-dsp-priv.h index fe8e81aad646..30ca14a6a835 100644 --- a/sound/soc/intel/sst-dsp-priv.h +++ b/sound/soc/intel/sst-dsp-priv.h @@ -136,7 +136,7 @@ struct sst_module_data { enum sst_data_type data_type; /* type of module data */ u32 size; /* size in bytes */ - u32 offset; /* offset in FW file */ + int32_t offset; /* offset in FW file */ u32 data_offset; /* offset in ADSP memory space */ void *data; /* module data */ }; diff --git a/sound/soc/intel/sst-haswell-ipc.c b/sound/soc/intel/sst-haswell-ipc.c index f46bb4ddde6f..50e4246d4b57 100644 --- a/sound/soc/intel/sst-haswell-ipc.c +++ b/sound/soc/intel/sst-haswell-ipc.c @@ -617,7 +617,7 @@ static void hsw_notification_work(struct work_struct *work) case IPC_POSITION_CHANGED: trace_ipc_notification("DSP stream position changed for", stream->reply.stream_hw_id); - sst_dsp_inbox_read(hsw->dsp, pos, sizeof(pos)); + sst_dsp_inbox_read(hsw->dsp, pos, sizeof(*pos)); if (stream->notify_position) stream->notify_position(stream, stream->pdata); @@ -991,7 +991,8 @@ int sst_hsw_stream_get_volume(struct sst_hsw *hsw, struct sst_hsw_stream *stream return -EINVAL; sst_dsp_read(hsw->dsp, volume, - stream->reply.volume_register_address[channel], sizeof(volume)); + stream->reply.volume_register_address[channel], + sizeof(*volume)); return 0; } @@ -1609,7 +1610,7 @@ int sst_hsw_dx_set_state(struct sst_hsw *hsw, trace_ipc_request("PM enter Dx state", state); ret = ipc_tx_message_wait(hsw, header, &state_, sizeof(state_), - dx, sizeof(dx)); + dx, sizeof(*dx)); if (ret < 0) { dev_err(hsw->dev, "ipc: error set dx state %d failed\n", state); return ret; diff --git a/sound/soc/jz4740/Makefile b/sound/soc/jz4740/Makefile index be873c1b0c20..d32c540555c4 100644 --- a/sound/soc/jz4740/Makefile +++ b/sound/soc/jz4740/Makefile @@ -1,10 +1,8 @@ # # Jz4740 Platform Support # -snd-soc-jz4740-objs := jz4740-pcm.o snd-soc-jz4740-i2s-objs := jz4740-i2s.o -obj-$(CONFIG_SND_JZ4740_SOC) += snd-soc-jz4740.o obj-$(CONFIG_SND_JZ4740_SOC_I2S) += snd-soc-jz4740-i2s.o # Jz4740 Machine Support diff --git a/sound/soc/sh/rcar/src.c b/sound/soc/sh/rcar/src.c index 6232b7d307aa..4d0720ed5a90 100644 --- a/sound/soc/sh/rcar/src.c +++ b/sound/soc/sh/rcar/src.c @@ -258,7 +258,7 @@ static int rsnd_src_init(struct rsnd_mod *mod, { struct rsnd_src *src = rsnd_mod_to_src(mod); - clk_enable(src->clk); + clk_prepare_enable(src->clk); return 0; } @@ -269,7 +269,7 @@ static int rsnd_src_quit(struct rsnd_mod *mod, { struct rsnd_src *src = rsnd_mod_to_src(mod); - clk_disable(src->clk); + clk_disable_unprepare(src->clk); return 0; } diff --git a/sound/soc/sh/rcar/ssi.c b/sound/soc/sh/rcar/ssi.c index 4b7e20603dd7..1d8387c25bd8 100644 --- a/sound/soc/sh/rcar/ssi.c +++ b/sound/soc/sh/rcar/ssi.c @@ -171,7 +171,7 @@ static void rsnd_ssi_hw_start(struct rsnd_ssi *ssi, u32 cr; if (0 == ssi->usrcnt) { - clk_enable(ssi->clk); + clk_prepare_enable(ssi->clk); if (rsnd_dai_is_clk_master(rdai)) { if (rsnd_ssi_clk_from_parent(ssi)) @@ -230,7 +230,7 @@ static void rsnd_ssi_hw_stop(struct rsnd_ssi *ssi, rsnd_ssi_master_clk_stop(ssi); } - clk_disable(ssi->clk); + clk_disable_unprepare(ssi->clk); } dev_dbg(dev, "ssi%d hw stopped\n", rsnd_mod_id(&ssi->mod)); diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index c8a780d0d057..7769b0a2bc5a 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -254,7 +254,6 @@ static int dapm_kcontrol_data_alloc(struct snd_soc_dapm_widget *widget, static void dapm_kcontrol_free(struct snd_kcontrol *kctl) { struct dapm_kcontrol_data *data = snd_kcontrol_chip(kctl); - kfree(data->widget); kfree(data->wlist); kfree(data); } diff --git a/tools/lib/api/fs/debugfs.c b/tools/lib/api/fs/debugfs.c index 7c4347962353..a74fba6d7743 100644 --- a/tools/lib/api/fs/debugfs.c +++ b/tools/lib/api/fs/debugfs.c @@ -12,8 +12,8 @@ char debugfs_mountpoint[PATH_MAX + 1] = "/sys/kernel/debug"; static const char * const debugfs_known_mountpoints[] = { - "/sys/kernel/debug/", - "/debug/", + "/sys/kernel/debug", + "/debug", 0, }; diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c index baec7d887da4..b83184f2d484 100644 --- a/tools/lib/traceevent/event-parse.c +++ b/tools/lib/traceevent/event-parse.c @@ -4344,6 +4344,7 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct event format, len_arg, arg); trace_seq_terminate(&p); trace_seq_puts(s, p.buffer); + trace_seq_destroy(&p); arg = arg->next; break; default: diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h index 791c539374c7..feab94281634 100644 --- a/tools/lib/traceevent/event-parse.h +++ b/tools/lib/traceevent/event-parse.h @@ -876,8 +876,8 @@ struct event_filter { struct event_filter *pevent_filter_alloc(struct pevent *pevent); /* for backward compatibility */ -#define FILTER_NONE PEVENT_ERRNO__FILTER_NOT_FOUND -#define FILTER_NOEXIST PEVENT_ERRNO__NO_FILTER +#define FILTER_NONE PEVENT_ERRNO__NO_FILTER +#define FILTER_NOEXIST PEVENT_ERRNO__FILTER_NOT_FOUND #define FILTER_MISS PEVENT_ERRNO__FILTER_MISS #define FILTER_MATCH PEVENT_ERRNO__FILTER_MATCH diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf index e96923310d57..895edd32930c 100644 --- a/tools/perf/Makefile.perf +++ b/tools/perf/Makefile.perf @@ -589,7 +589,7 @@ $(GTK_OBJS): $(OUTPUT)%.o: %.c $(LIB_H) $(QUIET_CC)$(CC) -o $@ -c -fPIC $(CFLAGS) $(GTK_CFLAGS) $< $(OUTPUT)libperf-gtk.so: $(GTK_OBJS) $(PERFLIBS) - $(QUIET_LINK)$(CC) -o $@ -shared $(ALL_LDFLAGS) $(filter %.o,$^) $(GTK_LIBS) + $(QUIET_LINK)$(CC) -o $@ -shared $(LDFLAGS) $(filter %.o,$^) $(GTK_LIBS) $(OUTPUT)builtin-help.o: builtin-help.c $(OUTPUT)common-cmds.h $(OUTPUT)PERF-CFLAGS $(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) \ diff --git a/tools/perf/arch/x86/tests/dwarf-unwind.c b/tools/perf/arch/x86/tests/dwarf-unwind.c index b602ad93ce63..83bc2385e6d3 100644 --- a/tools/perf/arch/x86/tests/dwarf-unwind.c +++ b/tools/perf/arch/x86/tests/dwarf-unwind.c @@ -23,9 +23,10 @@ static int sample_ustack(struct perf_sample *sample, sp = (unsigned long) regs[PERF_REG_X86_SP]; - map = map_groups__find(&thread->mg, MAP__FUNCTION, (u64) sp); + map = map_groups__find(&thread->mg, MAP__VARIABLE, (u64) sp); if (!map) { pr_debug("failed to get stack map\n"); + free(buf); return -1; } diff --git a/tools/perf/arch/x86/tests/regs_load.S b/tools/perf/arch/x86/tests/regs_load.S index 99167bf644ea..60875d5c556c 100644 --- a/tools/perf/arch/x86/tests/regs_load.S +++ b/tools/perf/arch/x86/tests/regs_load.S @@ -1,4 +1,3 @@ - #include <linux/linkage.h> #define AX 0 @@ -90,3 +89,10 @@ ENTRY(perf_regs_load) ret ENDPROC(perf_regs_load) #endif + +/* + * We need to provide note.GNU-stack section, saying that we want + * NOT executable stack. Otherwise the final linking will assume that + * the ELF stack should not be restricted at all and set it RWX. + */ +.section .note.GNU-stack,"",@progbits diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile index ee21fa95ebcf..802cf544202b 100644 --- a/tools/perf/config/Makefile +++ b/tools/perf/config/Makefile @@ -34,6 +34,14 @@ ifeq ($(ARCH),arm) LIBUNWIND_LIBS = -lunwind -lunwind-arm endif +# So far there's only x86 libdw unwind support merged in perf. +# Disable it on all other architectures in case libdw unwind +# support is detected in system. Add supported architectures +# to the check. +ifneq ($(ARCH),x86) + NO_LIBDW_DWARF_UNWIND := 1 +endif + ifeq ($(LIBUNWIND_LIBS),) NO_LIBUNWIND := 1 else @@ -109,6 +117,10 @@ CFLAGS += -Wall CFLAGS += -Wextra CFLAGS += -std=gnu99 +# Enforce a non-executable stack, as we may regress (again) in the future by +# adding assembler files missing the .GNU-stack linker note. +LDFLAGS += -Wl,-z,noexecstack + EXTLIBS = -lelf -lpthread -lrt -lm -ldl ifneq ($(OUTPUT),) @@ -186,7 +198,10 @@ VF_FEATURE_TESTS = \ stackprotector-all \ timerfd \ libunwind-debug-frame \ - bionic + bionic \ + liberty \ + liberty-z \ + cplus-demangle # Set FEATURE_CHECK_(C|LD)FLAGS-all for all CORE_FEATURE_TESTS features. # If in the future we need per-feature checks/flags for features not @@ -504,7 +519,21 @@ else endif ifeq ($(feature-libbfd), 1) - EXTLIBS += -lbfd -lz -liberty + EXTLIBS += -lbfd + + # call all detections now so we get correct + # status in VF output + $(call feature_check,liberty) + $(call feature_check,liberty-z) + $(call feature_check,cplus-demangle) + + ifeq ($(feature-liberty), 1) + EXTLIBS += -liberty + else + ifeq ($(feature-liberty-z), 1) + EXTLIBS += -liberty -lz + endif + endif endif ifdef NO_DEMANGLE @@ -515,15 +544,10 @@ else CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT else ifneq ($(feature-libbfd), 1) - $(call feature_check,liberty) - ifeq ($(feature-liberty), 1) - EXTLIBS += -lbfd -liberty - else - $(call feature_check,liberty-z) - ifeq ($(feature-liberty-z), 1) - EXTLIBS += -lbfd -liberty -lz - else - $(call feature_check,cplus-demangle) + ifneq ($(feature-liberty), 1) + ifneq ($(feature-liberty-z), 1) + # we dont have neither HAVE_CPLUS_DEMANGLE_SUPPORT + # or any of 'bfd iberty z' trinity ifeq ($(feature-cplus-demangle), 1) EXTLIBS += -liberty CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT diff --git a/tools/perf/tests/make b/tools/perf/tests/make index 5daeae1cb4c0..2f92d6e7ee00 100644 --- a/tools/perf/tests/make +++ b/tools/perf/tests/make @@ -46,6 +46,7 @@ make_install_man := install-man make_install_html := install-html make_install_info := install-info make_install_pdf := install-pdf +make_static := LDFLAGS=-static # all the NO_* variable combined make_minimal := NO_LIBPERL=1 NO_LIBPYTHON=1 NO_NEWT=1 NO_GTK2=1 @@ -87,6 +88,7 @@ run += make_install_bin # run += make_install_info # run += make_install_pdf run += make_minimal +run += make_static ifneq ($(call has,ctags),) run += make_tags diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c index a53cd0b8c151..27c2a5efe450 100644 --- a/tools/perf/util/machine.c +++ b/tools/perf/util/machine.c @@ -717,7 +717,7 @@ static char *get_kernel_version(const char *root_dir) } static int map_groups__set_modules_path_dir(struct map_groups *mg, - const char *dir_name) + const char *dir_name, int depth) { struct dirent *dent; DIR *dir = opendir(dir_name); @@ -742,7 +742,15 @@ static int map_groups__set_modules_path_dir(struct map_groups *mg, !strcmp(dent->d_name, "..")) continue; - ret = map_groups__set_modules_path_dir(mg, path); + /* Do not follow top-level source and build symlinks */ + if (depth == 0) { + if (!strcmp(dent->d_name, "source") || + !strcmp(dent->d_name, "build")) + continue; + } + + ret = map_groups__set_modules_path_dir(mg, path, + depth + 1); if (ret < 0) goto out; } else { @@ -786,11 +794,11 @@ static int machine__set_modules_path(struct machine *machine) if (!version) return -1; - snprintf(modules_path, sizeof(modules_path), "%s/lib/modules/%s/kernel", + snprintf(modules_path, sizeof(modules_path), "%s/lib/modules/%s", machine->root_dir, version); free(version); - return map_groups__set_modules_path_dir(&machine->kmaps, modules_path); + return map_groups__set_modules_path_dir(&machine->kmaps, modules_path, 0); } static int machine__create_module(void *arg, const char *name, u64 start) diff --git a/virt/kvm/arm/vgic.c b/virt/kvm/arm/vgic.c index 47b29834a6b6..56ff9bebb577 100644 --- a/virt/kvm/arm/vgic.c +++ b/virt/kvm/arm/vgic.c @@ -548,11 +548,10 @@ static bool handle_mmio_cfg_reg(struct kvm_vcpu *vcpu, u32 val; u32 *reg; - offset >>= 1; reg = vgic_bitmap_get_reg(&vcpu->kvm->arch.vgic.irq_cfg, - vcpu->vcpu_id, offset); + vcpu->vcpu_id, offset >> 1); - if (offset & 2) + if (offset & 4) val = *reg >> 16; else val = *reg & 0xffff; @@ -561,13 +560,13 @@ static bool handle_mmio_cfg_reg(struct kvm_vcpu *vcpu, vgic_reg_access(mmio, &val, offset, ACCESS_READ_VALUE | ACCESS_WRITE_VALUE); if (mmio->is_write) { - if (offset < 4) { + if (offset < 8) { *reg = ~0U; /* Force PPIs/SGIs to 1 */ return false; } val = vgic_cfg_compress(val); - if (offset & 2) { + if (offset & 4) { *reg &= 0xffff; *reg |= val << 16; } else { @@ -916,6 +915,7 @@ static void vgic_dispatch_sgi(struct kvm_vcpu *vcpu, u32 reg) case 0: if (!target_cpus) return; + break; case 1: target_cpus = ((1 << nrcpus) - 1) & ~(1 << vcpu_id) & 0xff; @@ -1667,10 +1667,11 @@ static int vgic_ioaddr_assign(struct kvm *kvm, phys_addr_t *ioaddr, if (addr + size < addr) return -EINVAL; + *ioaddr = addr; ret = vgic_ioaddr_overlap(kvm); if (ret) - return ret; - *ioaddr = addr; + *ioaddr = VGIC_ADDR_UNDEF; + return ret; } diff --git a/virt/kvm/assigned-dev.c b/virt/kvm/assigned-dev.c index 8db43701016f..bf06577fea51 100644 --- a/virt/kvm/assigned-dev.c +++ b/virt/kvm/assigned-dev.c @@ -395,7 +395,8 @@ static int assigned_device_enable_host_msix(struct kvm *kvm, if (dev->entries_nr == 0) return r; - r = pci_enable_msix(dev->dev, dev->host_msix_entries, dev->entries_nr); + r = pci_enable_msix_exact(dev->dev, + dev->host_msix_entries, dev->entries_nr); if (r) return r; diff --git a/virt/kvm/async_pf.c b/virt/kvm/async_pf.c index 10df100c4514..06e6401d6ef4 100644 --- a/virt/kvm/async_pf.c +++ b/virt/kvm/async_pf.c @@ -101,7 +101,7 @@ static void async_pf_execute(struct work_struct *work) if (waitqueue_active(&vcpu->wq)) wake_up_interruptible(&vcpu->wq); - mmdrop(mm); + mmput(mm); kvm_put_kvm(vcpu->kvm); } @@ -118,7 +118,7 @@ void kvm_clear_async_pf_completion_queue(struct kvm_vcpu *vcpu) flush_work(&work->work); #else if (cancel_work_sync(&work->work)) { - mmdrop(work->mm); + mmput(work->mm); kvm_put_kvm(vcpu->kvm); /* == work->vcpu->kvm */ kmem_cache_free(async_pf_cache, work); } @@ -183,7 +183,7 @@ int kvm_setup_async_pf(struct kvm_vcpu *vcpu, gva_t gva, unsigned long hva, work->addr = hva; work->arch = *arch; work->mm = current->mm; - atomic_inc(&work->mm->mm_count); + atomic_inc(&work->mm->mm_users); kvm_get_kvm(work->vcpu->kvm); /* this can't really happen otherwise gfn_to_pfn_async @@ -201,7 +201,7 @@ int kvm_setup_async_pf(struct kvm_vcpu *vcpu, gva_t gva, unsigned long hva, return 1; retry_sync: kvm_put_kvm(work->vcpu->kvm); - mmdrop(work->mm); + mmput(work->mm); kmem_cache_free(async_pf_cache, work); return 0; } |