From 2fd47094f92fa2bdbf99be33294a7b6b97785a70 Mon Sep 17 00:00:00 2001 From: Thomas Renninger Date: Mon, 1 Sep 2008 14:27:03 +0200 Subject: CPUFREQ: powernow-k8: Try to detect old BIOS, not supporting CPU freq on a recent AMD CPUs. Make use of FW_BUG interface to give vendors and users the ability to automatically check for powernow-k8 related BIOS bugs by: dmesg |grep "Firmware Bug" Signed-off-by: Thomas Renninger Signed-off-by: Andi Kleen Signed-off-by: Len Brown --- arch/x86/kernel/cpu/cpufreq/powernow-k8.c | 42 ++++++++++++++++++------------- 1 file changed, 24 insertions(+), 18 deletions(-) (limited to 'arch/x86/kernel') diff --git a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c index 84bb395038d8..4e0c6abd7ca4 100644 --- a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c +++ b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c @@ -45,7 +45,6 @@ #endif #define PFX "powernow-k8: " -#define BFX PFX "BIOS error: " #define VERSION "version 2.20.00" #include "powernow-k8.h" @@ -536,35 +535,40 @@ static int check_pst_table(struct powernow_k8_data *data, struct pst_s *pst, u8 for (j = 0; j < data->numps; j++) { if (pst[j].vid > LEAST_VID) { - printk(KERN_ERR PFX "vid %d invalid : 0x%x\n", j, pst[j].vid); + printk(KERN_ERR FW_BUG PFX "vid %d invalid : 0x%x\n", + j, pst[j].vid); return -EINVAL; } if (pst[j].vid < data->rvo) { /* vid + rvo >= 0 */ - printk(KERN_ERR BFX "0 vid exceeded with pstate %d\n", j); + printk(KERN_ERR FW_BUG PFX "0 vid exceeded with pstate" + " %d\n", j); return -ENODEV; } if (pst[j].vid < maxvid + data->rvo) { /* vid + rvo >= maxvid */ - printk(KERN_ERR BFX "maxvid exceeded with pstate %d\n", j); + printk(KERN_ERR FW_BUG PFX "maxvid exceeded with pstate" + " %d\n", j); return -ENODEV; } if (pst[j].fid > MAX_FID) { - printk(KERN_ERR BFX "maxfid exceeded with pstate %d\n", j); + printk(KERN_ERR FW_BUG PFX "maxfid exceeded with pstate" + " %d\n", j); return -ENODEV; } if (j && (pst[j].fid < HI_FID_TABLE_BOTTOM)) { /* Only first fid is allowed to be in "low" range */ - printk(KERN_ERR BFX "two low fids - %d : 0x%x\n", j, pst[j].fid); + printk(KERN_ERR FW_BUG PFX "two low fids - %d : " + "0x%x\n", j, pst[j].fid); return -EINVAL; } if (pst[j].fid < lastfid) lastfid = pst[j].fid; } if (lastfid & 1) { - printk(KERN_ERR BFX "lastfid invalid\n"); + printk(KERN_ERR FW_BUG PFX "lastfid invalid\n"); return -EINVAL; } if (lastfid > LO_FID_TABLE_TOP) - printk(KERN_INFO BFX "first fid not from lo freq table\n"); + printk(KERN_INFO FW_BUG PFX "first fid not from lo freq table\n"); return 0; } @@ -672,13 +676,13 @@ static int find_psb_table(struct powernow_k8_data *data) dprintk("table vers: 0x%x\n", psb->tableversion); if (psb->tableversion != PSB_VERSION_1_4) { - printk(KERN_ERR BFX "PSB table is not v1.4\n"); + printk(KERN_ERR FW_BUG PFX "PSB table is not v1.4\n"); return -ENODEV; } dprintk("flags: 0x%x\n", psb->flags1); if (psb->flags1) { - printk(KERN_ERR BFX "unknown flags\n"); + printk(KERN_ERR FW_BUG PFX "unknown flags\n"); return -ENODEV; } @@ -705,7 +709,7 @@ static int find_psb_table(struct powernow_k8_data *data) } } if (cpst != 1) { - printk(KERN_ERR BFX "numpst must be 1\n"); + printk(KERN_ERR FW_BUG PFX "numpst must be 1\n"); return -ENODEV; } @@ -1130,17 +1134,19 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol) "ACPI Processor module before starting this " "driver.\n"); #else - printk(KERN_ERR PFX "Your BIOS does not provide ACPI " - "_PSS objects in a way that Linux understands. " - "Please report this to the Linux ACPI maintainers" - " and complain to your BIOS vendor.\n"); + printk(KERN_ERR FW_BUG PFX "Your BIOS does not provide" + " ACPI _PSS objects in a way that Linux " + "understands. Please report this to the Linux " + "ACPI maintainers and complain to your BIOS " + "vendor.\n"); #endif kfree(data); return -ENODEV; } if (pol->cpu != 0) { - printk(KERN_ERR PFX "No ACPI _PSS objects for CPU other than " - "CPU0. Complain to your BIOS vendor.\n"); + printk(KERN_ERR FW_BUG PFX "No ACPI _PSS objects for " + "CPU other than CPU0. Complain to your BIOS " + "vendor.\n"); kfree(data); return -ENODEV; } @@ -1193,7 +1199,7 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol) /* min/max the cpu is capable of */ if (cpufreq_frequency_table_cpuinfo(pol, data->powernow_table)) { - printk(KERN_ERR PFX "invalid powernow_table\n"); + printk(KERN_ERR FW_BUG PFX "invalid powernow_table\n"); powernow_k8_cpu_exit_acpi(data); kfree(data->powernow_table); kfree(data); -- cgit v1.2.3 From d0d0f7432c9cbd52cb2f31d499f8292b13a7ecac Mon Sep 17 00:00:00 2001 From: Matt Mackall Date: Thu, 9 Oct 2008 12:41:50 -0500 Subject: x86: remove magic number from ACPI sleep stack buffer x86_64 SMP suspend to RAM uses a 10k temporary stack for saving the kernel state, but only 4k of it is used. Shrink it to 4k. Signed-off-by: Matt Mackall Acked-by: Pavel Machek Signed-off-by: Len Brown --- arch/x86/kernel/acpi/sleep.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/x86/kernel') diff --git a/arch/x86/kernel/acpi/sleep.c b/arch/x86/kernel/acpi/sleep.c index 426e5d91b63a..29cf3403abef 100644 --- a/arch/x86/kernel/acpi/sleep.c +++ b/arch/x86/kernel/acpi/sleep.c @@ -97,7 +97,7 @@ int acpi_save_state_mem(void) #else /* CONFIG_64BIT */ header->trampoline_segment = setup_trampoline() >> 4; #ifdef CONFIG_SMP - stack_start.sp = temp_stack + 4096; + stack_start.sp = temp_stack + sizeof(temp_stack); #endif initial_code = (unsigned long)wakeup_long64; saved_magic = 0x123456789abcdef0; -- cgit v1.2.3 From 5000cadcf3188e935dae28c4fc7e24639704ea55 Mon Sep 17 00:00:00 2001 From: Matt Mackall Date: Thu, 9 Oct 2008 11:56:21 -0500 Subject: x86: trim ACPI sleep stack buffer x86_64 SMP suspend to RAM uses a 10k temporary stack for saving the kernel state, but only 4k of it is used. Shrink it to 4k. Signed-off-by: Matt Mackall Signed-off-by: Len Brown --- arch/x86/kernel/acpi/sleep.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/x86/kernel') diff --git a/arch/x86/kernel/acpi/sleep.c b/arch/x86/kernel/acpi/sleep.c index 29cf3403abef..55d10cbe65b1 100644 --- a/arch/x86/kernel/acpi/sleep.c +++ b/arch/x86/kernel/acpi/sleep.c @@ -21,7 +21,7 @@ unsigned long acpi_realmode_flags; static unsigned long acpi_realmode; #if defined(CONFIG_SMP) && defined(CONFIG_64BIT) -static char temp_stack[10240]; +static char temp_stack[4096]; #endif /** -- cgit v1.2.3 From ee297533279a802eac8b1cbea8e65b24b36a1aac Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Wed, 24 Sep 2008 19:04:31 -0700 Subject: ACPI: don't load acpi_cpufreq if acpi=off Signed-off-by: Yinghai Lu Signed-off-by: Len Brown --- arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'arch/x86/kernel') diff --git a/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c b/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c index dd097b835839..9943b4c87746 100644 --- a/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c +++ b/arch/x86/kernel/cpu/cpufreq/acpi-cpufreq.c @@ -779,6 +779,9 @@ static int __init acpi_cpufreq_init(void) { int ret; + if (acpi_disabled) + return 0; + dprintk("acpi_cpufreq_init\n"); ret = acpi_cpufreq_early_init(); -- cgit v1.2.3 From 1339c367a842a9fc34b8fcfa1abadb07b11848ad Mon Sep 17 00:00:00 2001 From: Pavel Vasilyev Date: Wed, 15 Oct 2008 17:33:48 -0400 Subject: fix CONFIG_MMCONFIG=n build warning arch/x86/kernel/acpi/boot.c:100: warning: 'acpi_mcfg_64bit_base_addr' defined but not used http://bugzilla.kernel.org/show_bug.cgi?id=11743 Signed-off-by: Pavel Vasilyev Signed-off-by: Len Brown --- arch/x86/kernel/acpi/boot.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'arch/x86/kernel') diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c index c102af85df9c..0c2742f8c4da 100644 --- a/arch/x86/kernel/acpi/boot.c +++ b/arch/x86/kernel/acpi/boot.c @@ -97,7 +97,6 @@ static u64 acpi_lapic_addr __initdata = APIC_DEFAULT_PHYS_BASE; #warning ACPI uses CMPXCHG, i486 and later hardware #endif -static int acpi_mcfg_64bit_base_addr __initdata = FALSE; /* -------------------------------------------------------------------------- Boot-time Configuration @@ -156,6 +155,9 @@ char *__init __acpi_map_table(unsigned long phys, unsigned long size) } #ifdef CONFIG_PCI_MMCONFIG + +static int acpi_mcfg_64bit_base_addr __initdata = FALSE; + /* The physical address of the MMCONFIG aperture. Set from ACPI tables. */ struct acpi_mcfg_allocation *pci_mmcfg_config; int pci_mmcfg_config_num; -- cgit v1.2.3 From 26adcfbf00e0726b4469070aa2f530dcf963f484 Mon Sep 17 00:00:00 2001 From: Andreas Herrmann Date: Tue, 14 Oct 2008 21:01:15 +0200 Subject: x86: SB600: skip ACPI IRQ0 override if it is not routed to INT2 of IOAPIC On some more HP laptops BIOS reports an IRQ0 override but the SB600 chipset is configured such that timer interrupts go to INT0 of IOAPIC. Check IRQ0 routing and if it is routed to INT0 of IOAPIC skip the timer override. http://bugzilla.kernel.org/show_bug.cgi?id=11715 http://bugzilla.kernel.org/show_bug.cgi?id=11516 Signed-off-by: Andreas Herrmann Signed-off-by: Len Brown --- arch/x86/kernel/early-quirks.c | 55 +++++++++++++++++++++++++++++++++++++++--- 1 file changed, 52 insertions(+), 3 deletions(-) (limited to 'arch/x86/kernel') diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c index 733c4f8d42ea..3ce029ffaa55 100644 --- a/arch/x86/kernel/early-quirks.c +++ b/arch/x86/kernel/early-quirks.c @@ -95,7 +95,8 @@ static void __init nvidia_bugs(int num, int slot, int func) } -static u32 ati_ixp4x0_rev(int num, int slot, int func) +#if defined(CONFIG_ACPI) && defined(CONFIG_X86_IO_APIC) +static u32 __init ati_ixp4x0_rev(int num, int slot, int func) { u32 d; u8 b; @@ -115,7 +116,6 @@ static u32 ati_ixp4x0_rev(int num, int slot, int func) static void __init ati_bugs(int num, int slot, int func) { -#if defined(CONFIG_ACPI) && defined (CONFIG_X86_IO_APIC) u32 d; u8 b; @@ -138,9 +138,56 @@ static void __init ati_bugs(int num, int slot, int func) printk(KERN_INFO "If you got timer trouble " "try acpi_use_timer_override\n"); } -#endif } +static u32 __init ati_sbx00_rev(int num, int slot, int func) +{ + u32 old, d; + + d = read_pci_config(num, slot, func, 0x70); + old = d; + d &= ~(1<<8); + write_pci_config(num, slot, func, 0x70, d); + d = read_pci_config(num, slot, func, 0x8); + d &= 0xff; + write_pci_config(num, slot, func, 0x70, old); + + return d; +} + +static void __init ati_bugs_contd(int num, int slot, int func) +{ + u32 d, rev; + + if (acpi_use_timer_override) + return; + + rev = ati_sbx00_rev(num, slot, func); + if (rev > 0x13) + return; + + /* check for IRQ0 interrupt swap */ + d = read_pci_config(num, slot, func, 0x64); + if (!(d & (1<<14))) + acpi_skip_timer_override = 1; + + if (acpi_skip_timer_override) { + printk(KERN_INFO "SB600 revision 0x%x\n", rev); + printk(KERN_INFO "Ignoring ACPI timer override.\n"); + printk(KERN_INFO "If you got timer trouble " + "try acpi_use_timer_override\n"); + } +} +#else +static void __init ati_bugs(int num, int slot, int func) +{ +} + +static void __init ati_bugs_contd(int num, int slot, int func) +{ +} +#endif + #ifdef CONFIG_DMAR static void __init intel_g33_dmar(int num, int slot, int func) { @@ -176,6 +223,8 @@ static struct chipset early_qrk[] __initdata = { PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, fix_hypertransport_config }, { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP400_SMBUS, PCI_CLASS_SERIAL_SMBUS, PCI_ANY_ID, 0, ati_bugs }, + { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_SBX00_SMBUS, + PCI_CLASS_SERIAL_SMBUS, PCI_ANY_ID, 0, ati_bugs_contd }, #ifdef CONFIG_DMAR { PCI_VENDOR_ID_INTEL, 0x29c0, PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, intel_g33_dmar }, -- cgit v1.2.3 From 5b6985ce8ec7127b4d60ad450b64ca8b82748a3b Mon Sep 17 00:00:00 2001 From: Fenghua Yu Date: Thu, 16 Oct 2008 18:02:32 -0700 Subject: intel-iommu: IA64 support The current Intel IOMMU code assumes that both host page size and Intel IOMMU page size are 4KiB. The first patch supports variable page size. This provides support for IA64 which has multiple page sizes. This patch also adds some other code hooks for IA64 platform including DMAR_OPERATION_TIMEOUT definition. [dwmw2: some cleanup] Signed-off-by: Fenghua Yu Signed-off-by: Tony Luck Signed-off-by: David Woodhouse --- arch/x86/kernel/pci-dma.c | 16 ---------------- 1 file changed, 16 deletions(-) (limited to 'arch/x86/kernel') diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c index 192624820217..1972266e8ba5 100644 --- a/arch/x86/kernel/pci-dma.c +++ b/arch/x86/kernel/pci-dma.c @@ -9,8 +9,6 @@ #include #include -static int forbid_dac __read_mostly; - struct dma_mapping_ops *dma_ops; EXPORT_SYMBOL(dma_ops); @@ -293,17 +291,3 @@ void pci_iommu_shutdown(void) } /* Must execute after PCI subsystem */ fs_initcall(pci_iommu_init); - -#ifdef CONFIG_PCI -/* Many VIA bridges seem to corrupt data for DAC. Disable it here */ - -static __devinit void via_no_dac(struct pci_dev *dev) -{ - if ((dev->class >> 8) == PCI_CLASS_BRIDGE_PCI && forbid_dac == 0) { - printk(KERN_INFO "PCI: VIA PCI bridge detected." - "Disabling DAC.\n"); - forbid_dac = 1; - } -} -DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA, PCI_ANY_ID, via_no_dac); -#endif -- cgit v1.2.3 From f609891f428e1c20e270e7c350daf8c93cc459d7 Mon Sep 17 00:00:00 2001 From: Andreas Herrmann Date: Thu, 16 Oct 2008 16:27:36 +0200 Subject: amd_iommu: fix nasty bug that caused ILLEGAL_DEVICE_TABLE_ENTRY errors We are on 64-bit so better use u64 instead of u32 to deal with addresses: static void __init iommu_set_device_table(struct amd_iommu *iommu) { u64 entry; ... entry = virt_to_phys(amd_iommu_dev_table); ... (I am wondering why gcc 4.2.x did not warn about the assignment between u32 and unsigned long.) Cc: iommu@lists.linux-foundation.org Cc: stable@kernel.org Signed-off-by: Andreas Herrmann Signed-off-by: Joerg Roedel Signed-off-by: David Woodhouse --- arch/x86/kernel/amd_iommu_init.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/x86/kernel') diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c index 4cd8083c58be..0cdcda35a05f 100644 --- a/arch/x86/kernel/amd_iommu_init.c +++ b/arch/x86/kernel/amd_iommu_init.c @@ -212,7 +212,7 @@ static void __init iommu_set_exclusion_range(struct amd_iommu *iommu) /* Programs the physical address of the device table into the IOMMU hardware */ static void __init iommu_set_device_table(struct amd_iommu *iommu) { - u32 entry; + u64 entry; BUG_ON(iommu->mmio_base == NULL); -- cgit v1.2.3 From e9f95e637320efe1936b647308ddf4ec5b8e0311 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Tue, 21 Oct 2008 15:49:59 +0200 Subject: genirq: fix off by one and coding style Fix off-by-one in for_each_irq_desc_reverse(). Impact is near zero in practice, because nothing substantial wants to iterate down to IRQ#0 - but fix it nevertheless. Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner --- arch/x86/kernel/irq.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch/x86/kernel') diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c index ccf6c503fc3b..d1d4dc52f649 100644 --- a/arch/x86/kernel/irq.c +++ b/arch/x86/kernel/irq.c @@ -36,7 +36,7 @@ void ack_bad_irq(unsigned int irq) } #ifdef CONFIG_X86_32 -# define irq_stats(x) (&per_cpu(irq_stat,x)) +# define irq_stats(x) (&per_cpu(irq_stat, x)) #else # define irq_stats(x) cpu_pda(x) #endif @@ -113,7 +113,7 @@ int show_interrupts(struct seq_file *p, void *v) if (i == 0) { seq_printf(p, " "); for_each_online_cpu(j) - seq_printf(p, "CPU%-8d",j); + seq_printf(p, "CPU%-8d", j); seq_putc(p, '\n'); } -- cgit v1.2.3 From c7d87d79d14cecab7a34dedf1b133377cf5a0203 Mon Sep 17 00:00:00 2001 From: Venkatesh Pallipadi Date: Thu, 16 Oct 2008 16:34:43 -0400 Subject: x86 allow modules to register idle notifiers needed if the i7300_idle driver is to be modular. Signed-off-by: Venkatesh Pallipadi Acked-by: Ingo Molnar Signed-off-by: Len Brown --- arch/x86/kernel/process_64.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'arch/x86/kernel') diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c index e12e0e4dd256..3e3d503eadcf 100644 --- a/arch/x86/kernel/process_64.c +++ b/arch/x86/kernel/process_64.c @@ -62,6 +62,13 @@ void idle_notifier_register(struct notifier_block *n) { atomic_notifier_chain_register(&idle_notifier, n); } +EXPORT_SYMBOL_GPL(idle_notifier_register); + +void idle_notifier_unregister(struct notifier_block *n) +{ + atomic_notifier_chain_unregister(&idle_notifier, n); +} +EXPORT_SYMBOL_GPL(idle_notifier_unregister); void enter_idle(void) { -- cgit v1.2.3 From 8bcad30f2e6d4c20f7e71d2e2ac77acc0f0931e5 Mon Sep 17 00:00:00 2001 From: roel kluin Date: Tue, 21 Oct 2008 19:49:09 -0400 Subject: x86: make variables static These variables are only used in their source files, so make them static. Signed-off-by: Roel Kluin Signed-off-by: Ingo Molnar --- arch/x86/kernel/xsave.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/x86/kernel') diff --git a/arch/x86/kernel/xsave.c b/arch/x86/kernel/xsave.c index 9abac8a9d823..b13acb75e822 100644 --- a/arch/x86/kernel/xsave.c +++ b/arch/x86/kernel/xsave.c @@ -248,7 +248,7 @@ clear: * This will be saved when ever the FP and extended state context is * saved on the user stack during the signal handler delivery to the user. */ -void prepare_fx_sw_frame(void) +static void prepare_fx_sw_frame(void) { int size_extended = (xstate_size - sizeof(struct i387_fxsave_struct)) + FP_XSTATE_MAGIC2_SIZE; -- cgit v1.2.3 From 2bfef69d9e8cc056aa4dbc13f2136747340b4515 Mon Sep 17 00:00:00 2001 From: Andreas Herrmann Date: Wed, 15 Oct 2008 11:51:53 +0200 Subject: x86: SB600: skip IRQ0 override if it is not routed to INT2 of IOAPIC Impact: fix hung bootup and other misbehavior on certain laptops On some more HP laptops BIOS reports an IRQ0 override but the SB600 chipset is configured such that timer interrupts go to INT0 of IOAPIC. Check IRQ0 routing and if it is routed to INT0 of IOAPIC skip the timer override. See following bug reports: http://bugzilla.kernel.org/show_bug.cgi?id=11715 http://bugzilla.kernel.org/show_bug.cgi?id=11516 Signed-off-by: Andreas Herrmann Cc: Signed-off-by: Ingo Molnar --- arch/x86/kernel/early-quirks.c | 55 +++++++++++++++++++++++++++++++++++++++--- 1 file changed, 52 insertions(+), 3 deletions(-) (limited to 'arch/x86/kernel') diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c index 733c4f8d42ea..3ce029ffaa55 100644 --- a/arch/x86/kernel/early-quirks.c +++ b/arch/x86/kernel/early-quirks.c @@ -95,7 +95,8 @@ static void __init nvidia_bugs(int num, int slot, int func) } -static u32 ati_ixp4x0_rev(int num, int slot, int func) +#if defined(CONFIG_ACPI) && defined(CONFIG_X86_IO_APIC) +static u32 __init ati_ixp4x0_rev(int num, int slot, int func) { u32 d; u8 b; @@ -115,7 +116,6 @@ static u32 ati_ixp4x0_rev(int num, int slot, int func) static void __init ati_bugs(int num, int slot, int func) { -#if defined(CONFIG_ACPI) && defined (CONFIG_X86_IO_APIC) u32 d; u8 b; @@ -138,9 +138,56 @@ static void __init ati_bugs(int num, int slot, int func) printk(KERN_INFO "If you got timer trouble " "try acpi_use_timer_override\n"); } -#endif } +static u32 __init ati_sbx00_rev(int num, int slot, int func) +{ + u32 old, d; + + d = read_pci_config(num, slot, func, 0x70); + old = d; + d &= ~(1<<8); + write_pci_config(num, slot, func, 0x70, d); + d = read_pci_config(num, slot, func, 0x8); + d &= 0xff; + write_pci_config(num, slot, func, 0x70, old); + + return d; +} + +static void __init ati_bugs_contd(int num, int slot, int func) +{ + u32 d, rev; + + if (acpi_use_timer_override) + return; + + rev = ati_sbx00_rev(num, slot, func); + if (rev > 0x13) + return; + + /* check for IRQ0 interrupt swap */ + d = read_pci_config(num, slot, func, 0x64); + if (!(d & (1<<14))) + acpi_skip_timer_override = 1; + + if (acpi_skip_timer_override) { + printk(KERN_INFO "SB600 revision 0x%x\n", rev); + printk(KERN_INFO "Ignoring ACPI timer override.\n"); + printk(KERN_INFO "If you got timer trouble " + "try acpi_use_timer_override\n"); + } +} +#else +static void __init ati_bugs(int num, int slot, int func) +{ +} + +static void __init ati_bugs_contd(int num, int slot, int func) +{ +} +#endif + #ifdef CONFIG_DMAR static void __init intel_g33_dmar(int num, int slot, int func) { @@ -176,6 +223,8 @@ static struct chipset early_qrk[] __initdata = { PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, fix_hypertransport_config }, { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_IXP400_SMBUS, PCI_CLASS_SERIAL_SMBUS, PCI_ANY_ID, 0, ati_bugs }, + { PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_SBX00_SMBUS, + PCI_CLASS_SERIAL_SMBUS, PCI_ANY_ID, 0, ati_bugs_contd }, #ifdef CONFIG_DMAR { PCI_VENDOR_ID_INTEL, 0x29c0, PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, intel_g33_dmar }, -- cgit v1.2.3 From d2f6f7aeee890df445be29a60e34925ec15f620c Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 21 Oct 2008 22:45:22 +0200 Subject: MCE: Don't run 32bit machine checks with interrupts on Running machine checks with interrupt on is a extremly bad idea. The machine check handler only runs when the system is broken and needs to finish as quickly as possible. Remove the respective bogus post 2.6.27 regression and call the machine check vector directly again. This removes only code. Signed-off-by: Andi Kleen [Cherry-picked from x86/mce] Signed-off-by: Thomas Gleixner --- arch/x86/kernel/entry_32.S | 2 +- arch/x86/kernel/traps.c | 8 -------- 2 files changed, 1 insertion(+), 9 deletions(-) (limited to 'arch/x86/kernel') diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S index c356423a6026..dd65143941a8 100644 --- a/arch/x86/kernel/entry_32.S +++ b/arch/x86/kernel/entry_32.S @@ -1024,7 +1024,7 @@ ENTRY(machine_check) RING0_INT_FRAME pushl $0 CFI_ADJUST_CFA_OFFSET 4 - pushl $do_machine_check + pushl machine_check_vector CFI_ADJUST_CFA_OFFSET 4 jmp error_code CFI_ENDPROC diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c index e062974cce34..04d242ab0161 100644 --- a/arch/x86/kernel/traps.c +++ b/arch/x86/kernel/traps.c @@ -931,14 +931,6 @@ do_device_not_available(struct pt_regs *regs, long error) } #ifdef CONFIG_X86_32 -#ifdef CONFIG_X86_MCE -dotraplinkage void __kprobes do_machine_check(struct pt_regs *regs, long error) -{ - conditional_sti(regs); - machine_check_vector(regs, error); -} -#endif - dotraplinkage void do_iret_error(struct pt_regs *regs, long error_code) { siginfo_t info; -- cgit v1.2.3 From cf52ebedba77ee494b495dedd3a1f55944611275 Mon Sep 17 00:00:00 2001 From: Neil Horman Date: Fri, 17 Oct 2008 17:00:13 -0400 Subject: x86, kexec: fix hang on i386 when panic occurs while console_sem is held There's a corner case in 32 bit x86 kdump at the moment. When the box panics via nmi, we call bust_spinlocks(1) to disable sensitivity to the console_sem (allowing us to print to the console in all cases), but we don't call crash_kexec, until after we call bust_spinlocks(0), which re-enables console_sem sensitivity. The result is that, if we get an nmi while the console_sem is held and kdump is configured, and we try to print something to the console during kdump shutdown (which we often do) we deadlock the box. The fix is to simply do what 64 bit die_nmi does which is to not call bust_spinlocks(0) until after we call crash_kexec. Patch below tested successfully by me. Signed-off-by: Neil Horman Signed-off-by: Ingo Molnar --- arch/x86/kernel/dumpstack_32.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/x86/kernel') diff --git a/arch/x86/kernel/dumpstack_32.c b/arch/x86/kernel/dumpstack_32.c index 1a78180f08d3..b3614752197b 100644 --- a/arch/x86/kernel/dumpstack_32.c +++ b/arch/x86/kernel/dumpstack_32.c @@ -405,7 +405,6 @@ die_nmi(char *str, struct pt_regs *regs, int do_panic) panic("Non maskable interrupt"); console_silent(); spin_unlock(&nmi_print_lock); - bust_spinlocks(0); /* * If we are in kernel we are probably nested up pretty bad @@ -416,6 +415,7 @@ die_nmi(char *str, struct pt_regs *regs, int do_panic) crash_kexec(regs); } + bust_spinlocks(0); do_exit(SIGSEGV); } -- cgit v1.2.3 From 35af28219e684a36cc8b1ff456c370ce22be157d Mon Sep 17 00:00:00 2001 From: Andreas Herrmann Date: Wed, 22 Oct 2008 13:08:31 +0200 Subject: x86: call dmi-quirks for HP Laptops after early-quirks are executed Impact: make warning message disappear - functionality unchanged Problems with bogus IRQ0 override of those laptops should be fixed with commits x86: SB600: skip IRQ0 override if it is not routed to INT2 of IOAPIC x86: SB450: skip IRQ0 override if it is not routed to INT2 of IOAPIC that introduce early-quirks based on chipset configuration. For further information, see http://bugzilla.kernel.org/show_bug.cgi?id=11516 Instead of removing the related dmi-quirks completely we'd like to keep them for (at least) one kernel version -- to double-check whether the early-quirks really took effect. But the dmi-quirks need to be called after early-quirks are executed. With this patch calling sequence for dmi-quriks is changed as follows: acpi_boot_table_init() (dmi-quirks) ... early_quirks() (detect bogus IRQ0 override) ... acpi_boot_init() (late dmi-quirks and setup IO APIC) Note: Plan is to remove the "late dmi-quirks" with next kernel version. Signed-off-by: Andreas Herrmann Signed-off-by: Ingo Molnar --- arch/x86/kernel/acpi/boot.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'arch/x86/kernel') diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c index 0d1c26a583c5..8072edb62478 100644 --- a/arch/x86/kernel/acpi/boot.c +++ b/arch/x86/kernel/acpi/boot.c @@ -1598,6 +1598,11 @@ static struct dmi_system_id __initdata acpi_dmi_table[] = { DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 360"), }, }, + {} +}; + +/* second table for DMI checks that should run after early-quirks */ +static struct dmi_system_id __initdata acpi_dmi_table_late[] = { /* * HP laptops which use a DSDT reporting as HP/SB400/10000, * which includes some code which overrides all temperature @@ -1726,6 +1731,9 @@ int __init early_acpi_boot_init(void) int __init acpi_boot_init(void) { + /* those are executed after early-quirks are executed */ + dmi_check_system(acpi_dmi_table_late); + /* * If acpi_disabled, bail out * One exception: acpi=ht continues far enough to enumerate LAPICs -- cgit v1.2.3 From bc8bcc79ea4203c7d04309f1307ab88c86f0b0cf Mon Sep 17 00:00:00 2001 From: Lai Jiangshan Date: Wed, 22 Oct 2008 12:42:30 +0800 Subject: x86/proc: fix /proc/cpuinfo cpu offline bug Impact: fix missing CPUs in /proc/cpuinfo after CPU hotunplug/hotreplug In my test, I found that if a cpu has been offline, the next cpus may not be shown in the /proc/cpuinfo. if one read() cannot consume the whole /proc/cpuinfo, c_start() will be called again in the next read() calls. And *pos has been increased by 1 by the caller(seq_read()). if this time the cpu#*pos is offline, c_start() will return NULL, and the next cpus can not be shown. this fix use next_cpu_nr(*pos - 1, cpu_online_map) to search the next unshown cpu. the most easy way to reproduce this bug: 1) offline cpu#1 (cpu#0 is online) 2) dd ibs=2 if=/proc/cpuinfo the result is that only cpu#0 is shown. cpu#2 and cpu#3 .... cannot be shown in /proc/cpuinfo it's bug. Signed-off-by: Lai Jiangshan Signed-off-by: Ingo Molnar --- arch/x86/kernel/cpu/proc.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'arch/x86/kernel') diff --git a/arch/x86/kernel/cpu/proc.c b/arch/x86/kernel/cpu/proc.c index a26c480b9491..01b1244ef1c0 100644 --- a/arch/x86/kernel/cpu/proc.c +++ b/arch/x86/kernel/cpu/proc.c @@ -160,14 +160,16 @@ static void *c_start(struct seq_file *m, loff_t *pos) { if (*pos == 0) /* just in case, cpu 0 is not the first */ *pos = first_cpu(cpu_online_map); - if ((*pos) < nr_cpu_ids && cpu_online(*pos)) + else + *pos = next_cpu_nr(*pos - 1, cpu_online_map); + if ((*pos) < nr_cpu_ids) return &cpu_data(*pos); return NULL; } static void *c_next(struct seq_file *m, void *v, loff_t *pos) { - *pos = next_cpu(*pos, cpu_online_map); + (*pos)++; return c_start(m, pos); } -- cgit v1.2.3 From db96b0a0e4158806fcf03945a870f9320e6bac9b Mon Sep 17 00:00:00 2001 From: Cyrill Gorcunov Date: Wed, 22 Oct 2008 18:00:09 +0400 Subject: x86: do_boot_cpu - check if we have ESR register Impact: fix APIC IRQ irregularities on certain older boxes We should touch the APIC ESR register if only we have it. The patch fixes the problem mentioned by Max Kellermann: http://lkml.org/lkml/2008/10/17/147 Bisected-by: Max Kellermann Signed-off-by: Cyrill Gorcunov [ mingo@elte.hu: build fix ] Signed-off-by: Ingo Molnar --- arch/x86/kernel/smpboot.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'arch/x86/kernel') diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c index 7ece815ea637..7b1093397319 100644 --- a/arch/x86/kernel/smpboot.c +++ b/arch/x86/kernel/smpboot.c @@ -893,9 +893,11 @@ do_rest: smpboot_setup_warm_reset_vector(start_ip); /* * Be paranoid about clearing APIC errors. - */ - apic_write(APIC_ESR, 0); - apic_read(APIC_ESR); + */ + if (APIC_INTEGRATED(apic_version[boot_cpu_physical_apicid])) { + apic_write(APIC_ESR, 0); + apic_read(APIC_ESR); + } } /* -- cgit v1.2.3 From 55410791c91f448737c90585d2e280edd3c4d5c7 Mon Sep 17 00:00:00 2001 From: "Gustavo F. Padovan" Date: Wed, 15 Oct 2008 10:37:04 -0300 Subject: x86: remove redundant KERN_DEBUG on pr_debug pr_debug don't need KERN_DEBUG. Signed-off-by: Gustavo F. Padovan Signed-off-by: Ingo Molnar --- arch/x86/kernel/acpi/boot.c | 2 +- arch/x86/kernel/setup_percpu.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'arch/x86/kernel') diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c index 8072edb62478..dc3eac353db2 100644 --- a/arch/x86/kernel/acpi/boot.c +++ b/arch/x86/kernel/acpi/boot.c @@ -1136,7 +1136,7 @@ int mp_register_gsi(u32 gsi, int triggering, int polarity) return gsi; } if (test_bit(ioapic_pin, mp_ioapic_routing[ioapic].pin_programmed)) { - pr_debug(KERN_DEBUG "Pin %d-%d already programmed\n", + pr_debug("Pin %d-%d already programmed\n", mp_ioapic_routing[ioapic].apic_id, ioapic_pin); #ifdef CONFIG_X86_32 return (gsi < IRQ_COMPRESSION_START ? gsi : gsi_to_irq[gsi]); diff --git a/arch/x86/kernel/setup_percpu.c b/arch/x86/kernel/setup_percpu.c index 410c88f0bfeb..ae0c0d3bb770 100644 --- a/arch/x86/kernel/setup_percpu.c +++ b/arch/x86/kernel/setup_percpu.c @@ -218,7 +218,7 @@ static void __init setup_node_to_cpumask_map(void) /* allocate the map */ map = alloc_bootmem_low(nr_node_ids * sizeof(cpumask_t)); - pr_debug(KERN_DEBUG "Node to cpumask map at %p for %d nodes\n", + pr_debug("Node to cpumask map at %p for %d nodes\n", map, nr_node_ids); /* node_to_cpumask() will now work */ -- cgit v1.2.3 From aef8f5b8c2da706cb3efe701e2a35e11221ea5bd Mon Sep 17 00:00:00 2001 From: Jeremy Fitzhardinge Date: Tue, 14 Oct 2008 21:43:43 -0700 Subject: x86/tlb_uv: remove strange mc146818rtc include For some reason tlb_uv was including linux/mc146818rtc.h. It really just needs linux/seq_file.h Signed-off-by: Jeremy Fitzhardinge Cc: Cliff Wickman Signed-off-by: Ingo Molnar --- arch/x86/kernel/tlb_uv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/x86/kernel') diff --git a/arch/x86/kernel/tlb_uv.c b/arch/x86/kernel/tlb_uv.c index 8b8c0d6640fa..04431f34fd16 100644 --- a/arch/x86/kernel/tlb_uv.c +++ b/arch/x86/kernel/tlb_uv.c @@ -6,7 +6,7 @@ * This code is released under the GNU General Public License version 2 or * later. */ -#include +#include #include #include -- cgit v1.2.3 From 983f91ff949d9008eb7fb73ba4e35f9decc182b3 Mon Sep 17 00:00:00 2001 From: Marcin Slusarz Date: Sun, 12 Oct 2008 11:44:08 +0200 Subject: x86: fix section mismatch warning - apic_flat Impact: cleanup only, no functionality changed WARNING: vmlinux.o(.data+0xbe08): Section mismatch in reference from the variable apic_flat to the function .init.text:flat_acpi_madt_oem_check() The variable apic_flat references the function __init flat_acpi_madt_oem_check() This is harmless, because the .acpi_madt_oem_check is only called during init time. But we keep the function pointer around in a .data function pointer template, so it's better we do not keep that stale - so mark this function non-__init. Signed-off-by: Marcin Slusarz Signed-off-by: Ingo Molnar --- arch/x86/kernel/genapic_flat_64.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/x86/kernel') diff --git a/arch/x86/kernel/genapic_flat_64.c b/arch/x86/kernel/genapic_flat_64.c index 2ec2de8d8c46..a10ed42a35e0 100644 --- a/arch/x86/kernel/genapic_flat_64.c +++ b/arch/x86/kernel/genapic_flat_64.c @@ -25,7 +25,7 @@ #include #endif -static int __init flat_acpi_madt_oem_check(char *oem_id, char *oem_table_id) +static int flat_acpi_madt_oem_check(char *oem_id, char *oem_table_id) { return 1; } -- cgit v1.2.3 From fae1721601a008fc83a809fdd76085a56f2275f0 Mon Sep 17 00:00:00 2001 From: Marcin Slusarz Date: Sun, 12 Oct 2008 11:44:09 +0200 Subject: x86: fix section mismatch warning - apic_physflat Impact: cleanup only, no functionality changed WARNING: vmlinux.o(.data+0xbe88): Section mismatch in reference from the variable apic_physflat to the function .init.text:physflat_acpi_madt_oem_check() The variable apic_physflat references the function __init physflat_acpi_madt_oem_check() Signed-off-by: Marcin Slusarz Signed-off-by: Ingo Molnar --- arch/x86/kernel/genapic_flat_64.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/x86/kernel') diff --git a/arch/x86/kernel/genapic_flat_64.c b/arch/x86/kernel/genapic_flat_64.c index a10ed42a35e0..c0262791bda4 100644 --- a/arch/x86/kernel/genapic_flat_64.c +++ b/arch/x86/kernel/genapic_flat_64.c @@ -170,7 +170,7 @@ struct genapic apic_flat = { * We cannot use logical delivery in this case because the mask * overflows, so use physical mode. */ -static int __init physflat_acpi_madt_oem_check(char *oem_id, char *oem_table_id) +static int physflat_acpi_madt_oem_check(char *oem_id, char *oem_table_id) { #ifdef CONFIG_ACPI /* -- cgit v1.2.3 From f8827c017f19e1cd8834821f4303d5f163feab84 Mon Sep 17 00:00:00 2001 From: Marcin Slusarz Date: Sun, 12 Oct 2008 11:44:10 +0200 Subject: x86: fix section mismatch warning - apic_x2apic_uv_x Impact: cleanup only, no functionality changed WARNING: vmlinux.o(.data+0xbf08): Section mismatch in reference from the variable apic_x2apic_uv_x to the function .init.text:uv_acpi_madt_oem_check() The variable apic_x2apic_uv_x references the function __init uv_acpi_madt_oem_check() Signed-off-by: Marcin Slusarz Signed-off-by: Ingo Molnar --- arch/x86/kernel/genx2apic_uv_x.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/x86/kernel') diff --git a/arch/x86/kernel/genx2apic_uv_x.c b/arch/x86/kernel/genx2apic_uv_x.c index bfd532843df6..680a06557c5e 100644 --- a/arch/x86/kernel/genx2apic_uv_x.c +++ b/arch/x86/kernel/genx2apic_uv_x.c @@ -30,7 +30,7 @@ DEFINE_PER_CPU(int, x2apic_extra_bits); static enum uv_system_type uv_system_type; -static int __init uv_acpi_madt_oem_check(char *oem_id, char *oem_table_id) +static int uv_acpi_madt_oem_check(char *oem_id, char *oem_table_id) { if (!strcmp(oem_id, "SGI")) { if (!strcmp(oem_table_id, "UVL")) -- cgit v1.2.3 From 2caa37150d7aa110b6155cb77b07e581c103fef4 Mon Sep 17 00:00:00 2001 From: Marcin Slusarz Date: Sun, 12 Oct 2008 11:44:11 +0200 Subject: x86: fix section mismatch warning - apic_x2apic_cluster Impact: cleanup only, no functionality changed WARNING: vmlinux.o(.data+0xbf88): Section mismatch in reference from the variable apic_x2apic_cluster to the function .init.text:x2apic_acpi_madt_oem_check() The variable apic_x2apic_cluster references the function __init x2apic_acpi_madt_oem_check() Signed-off-by: Marcin Slusarz Signed-off-by: Ingo Molnar --- arch/x86/kernel/genx2apic_cluster.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/x86/kernel') diff --git a/arch/x86/kernel/genx2apic_cluster.c b/arch/x86/kernel/genx2apic_cluster.c index e4bf2cc0d743..f6a2c8eb48a6 100644 --- a/arch/x86/kernel/genx2apic_cluster.c +++ b/arch/x86/kernel/genx2apic_cluster.c @@ -12,7 +12,7 @@ DEFINE_PER_CPU(u32, x86_cpu_to_logical_apicid); -static int __init x2apic_acpi_madt_oem_check(char *oem_id, char *oem_table_id) +static int x2apic_acpi_madt_oem_check(char *oem_id, char *oem_table_id) { if (cpu_has_x2apic) return 1; -- cgit v1.2.3 From 3cfba0892585d4c8e7b4122b5dc0d206a76936de Mon Sep 17 00:00:00 2001 From: Marcin Slusarz Date: Sun, 12 Oct 2008 11:46:23 +0200 Subject: x86: fix section mismatch warning - apic_x2apic_phys Impact: cleanup only, no functionality changed WARNING: vmlinux.o(.data+0xc008): Section mismatch in reference from the variable apic_x2apic_phys to the function .init.text:x2apic_acpi_madt_oem_check() The variable apic_x2apic_phys references the function __init x2apic_acpi_madt_oem_check() Signed-off-by: Marcin Slusarz Signed-off-by: Ingo Molnar --- arch/x86/kernel/genx2apic_phys.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/x86/kernel') diff --git a/arch/x86/kernel/genx2apic_phys.c b/arch/x86/kernel/genx2apic_phys.c index 8f1343df2627..d042211768b7 100644 --- a/arch/x86/kernel/genx2apic_phys.c +++ b/arch/x86/kernel/genx2apic_phys.c @@ -19,7 +19,7 @@ static int set_x2apic_phys_mode(char *arg) } early_param("x2apic_phys", set_x2apic_phys_mode); -static int __init x2apic_acpi_madt_oem_check(char *oem_id, char *oem_table_id) +static int x2apic_acpi_madt_oem_check(char *oem_id, char *oem_table_id) { if (cpu_has_x2apic && x2apic_phys) return 1; -- cgit v1.2.3 From bb8985586b7a906e116db835c64773b7a7d51663 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 17 Aug 2008 21:05:42 -0400 Subject: x86, um: ... and asm-x86 move Signed-off-by: Al Viro Signed-off-by: H. Peter Anvin --- arch/x86/kernel/cpu/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/x86/kernel') diff --git a/arch/x86/kernel/cpu/Makefile b/arch/x86/kernel/cpu/Makefile index 7f0b45a5d788..82ec6075c057 100644 --- a/arch/x86/kernel/cpu/Makefile +++ b/arch/x86/kernel/cpu/Makefile @@ -25,7 +25,7 @@ obj-$(CONFIG_X86_LOCAL_APIC) += perfctr-watchdog.o quiet_cmd_mkcapflags = MKCAP $@ cmd_mkcapflags = $(PERL) $(srctree)/$(src)/mkcapflags.pl $< $@ -cpufeature = $(src)/../../../../include/asm-x86/cpufeature.h +cpufeature = $(src)/../../include/asm/cpufeature.h targets += capflags.c $(obj)/capflags.c: $(cpufeature) $(src)/mkcapflags.pl FORCE -- cgit v1.2.3 From 1965aae3c98397aad957412413c07e97b1bd4e64 Mon Sep 17 00:00:00 2001 From: "H. Peter Anvin" Date: Wed, 22 Oct 2008 22:26:29 -0700 Subject: x86: Fix ASM_X86__ header guards Change header guards named "ASM_X86__*" to "_ASM_X86_*" since: a. the double underscore is ugly and pointless. b. no leading underscore violates namespace constraints. Signed-off-by: H. Peter Anvin --- arch/x86/kernel/asm-offsets_64.c | 2 +- arch/x86/kernel/syscall_64.c | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) (limited to 'arch/x86/kernel') diff --git a/arch/x86/kernel/asm-offsets_64.c b/arch/x86/kernel/asm-offsets_64.c index 505543a75a56..7fcf63d22f8b 100644 --- a/arch/x86/kernel/asm-offsets_64.c +++ b/arch/x86/kernel/asm-offsets_64.c @@ -22,7 +22,7 @@ #define __NO_STUBS 1 #undef __SYSCALL -#undef ASM_X86__UNISTD_64_H +#undef _ASM_X86_UNISTD_64_H #define __SYSCALL(nr, sym) [nr] = 1, static char syscalls[] = { #include diff --git a/arch/x86/kernel/syscall_64.c b/arch/x86/kernel/syscall_64.c index 3d1be4f0fac5..de87d6008295 100644 --- a/arch/x86/kernel/syscall_64.c +++ b/arch/x86/kernel/syscall_64.c @@ -8,12 +8,12 @@ #define __NO_STUBS #define __SYSCALL(nr, sym) extern asmlinkage void sym(void) ; -#undef ASM_X86__UNISTD_64_H +#undef _ASM_X86_UNISTD_64_H #include #undef __SYSCALL #define __SYSCALL(nr, sym) [nr] = sym, -#undef ASM_X86__UNISTD_64_H +#undef _ASM_X86_UNISTD_64_H typedef void (*sys_call_ptr_t)(void); -- cgit v1.2.3