From a83fe32fa668c0a17b3f99a1480b006f7d649924 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Fri, 18 Jul 2008 13:22:36 -0700 Subject: x86, pci: detect end_bus_number according to acpi/e820 reserved, v2 Jack Howarth reported that 2.6.26-rc9-git9 doesn't boot on MacBookPro2. the reason is a faulty BIOS update that reportes faulty resources. Nevertheless it's possible for Linux to be more resolent about this situation (and similar situations) and work around this bug, by cross-checking the mmconf range against the e820 table and ACPI resources. Change the mconf bus range from [0,0xff] to to [0, 0x3f] to match range [0xf0000000, 0xf4000000) in e820 tables. [ v2, yhlu.kernel@gmail.com: x86, pci: detect end_bus_number according to acpi/e820 reserved - fix ] Reported-by: Jack Howarth Signed-off-by: Yinghai Lu Cc: jbarnes@virtuousgeek.org Cc: Jack Howarth Signed-off-by: Ingo Molnar --- arch/x86/pci/mmconfig-shared.c | 65 +++++++++++++++++++++++++++++++----------- 1 file changed, 48 insertions(+), 17 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/pci/mmconfig-shared.c b/arch/x86/pci/mmconfig-shared.c index 23faaa890ff..429c7014feb 100644 --- a/arch/x86/pci/mmconfig-shared.c +++ b/arch/x86/pci/mmconfig-shared.c @@ -293,7 +293,7 @@ static acpi_status __init find_mboard_resource(acpi_handle handle, u32 lvl, return AE_OK; } -static int __init is_acpi_reserved(unsigned long start, unsigned long end) +static int __init is_acpi_reserved(u64 start, u64 end, unsigned not_used) { struct resource mcfg_res; @@ -310,6 +310,41 @@ static int __init is_acpi_reserved(unsigned long start, unsigned long end) return mcfg_res.flags; } +typedef int (*check_reserved_t)(u64 start, u64 end, unsigned type); + +static int __init is_mmconf_reserved(check_reserved_t is_reserved, + u64 addr, u64 size, int i, + typeof(pci_mmcfg_config[0]) *cfg, int with_e820) +{ + u64 old_size = size; + int valid = 0; + + while (!is_reserved(addr, addr + size - 1, E820_RESERVED)) { + size >>= 1; + if (size < (16UL<<20)) + break; + } + + if (size >= (16UL<<20) || size == old_size) { + printk(KERN_NOTICE + "PCI: MCFG area at %Lx reserved in %s\n", + addr, with_e820?"E820":"ACPI motherboard resources"); + valid = 1; + + if (old_size != size) { + /* update end_bus_number */ + cfg->end_bus_number = cfg->start_bus_number + ((size>>20) - 1); + printk(KERN_NOTICE "PCI: updated MCFG configuration %d: base %lx " + "segment %hu buses %u - %u\n", + i, (unsigned long)cfg->address, cfg->pci_segment, + (unsigned int)cfg->start_bus_number, + (unsigned int)cfg->end_bus_number); + } + } + + return valid; +} + static void __init pci_mmcfg_reject_broken(int early) { typeof(pci_mmcfg_config[0]) *cfg; @@ -324,21 +359,22 @@ static void __init pci_mmcfg_reject_broken(int early) for (i = 0; i < pci_mmcfg_config_num; i++) { int valid = 0; - u32 size = (cfg->end_bus_number + 1) << 20; + u64 addr, size; + cfg = &pci_mmcfg_config[i]; + addr = cfg->start_bus_number; + addr <<= 20; + addr += cfg->address; + size = cfg->end_bus_number + 1 - cfg->start_bus_number; + size <<= 20; printk(KERN_NOTICE "PCI: MCFG configuration %d: base %lx " "segment %hu buses %u - %u\n", i, (unsigned long)cfg->address, cfg->pci_segment, (unsigned int)cfg->start_bus_number, (unsigned int)cfg->end_bus_number); - if (!early && - is_acpi_reserved(cfg->address, cfg->address + size - 1)) { - printk(KERN_NOTICE "PCI: MCFG area at %Lx reserved " - "in ACPI motherboard resources\n", - cfg->address); - valid = 1; - } + if (!early) + valid = is_mmconf_reserved(is_acpi_reserved, addr, size, i, cfg, 0); if (valid) continue; @@ -347,16 +383,11 @@ static void __init pci_mmcfg_reject_broken(int early) printk(KERN_ERR "PCI: BIOS Bug: MCFG area at %Lx is not" " reserved in ACPI motherboard resources\n", cfg->address); + /* Don't try to do this check unless configuration type 1 is available. how about type 2 ?*/ - if (raw_pci_ops && e820_all_mapped(cfg->address, - cfg->address + size - 1, - E820_RESERVED)) { - printk(KERN_NOTICE - "PCI: MCFG area at %Lx reserved in E820\n", - cfg->address); - valid = 1; - } + if (raw_pci_ops) + valid = is_mmconf_reserved(e820_all_mapped, addr, size, i, cfg, 1); if (!valid) goto reject; -- cgit v1.2.3 From 026e2c05ef58ef413e2d52696f125d5ea1aa8bce Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Tue, 22 Jul 2008 11:58:14 +0200 Subject: x86, cyrix: debug Signed-off-by: Ingo Molnar --- arch/x86/kernel/cpu/cyrix.c | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/cpu/cyrix.c b/arch/x86/kernel/cpu/cyrix.c index 3fd7a67bb06..db5868cd244 100644 --- a/arch/x86/kernel/cpu/cyrix.c +++ b/arch/x86/kernel/cpu/cyrix.c @@ -116,7 +116,7 @@ static void __cpuinit set_cx86_reorder(void) setCx86(CX86_CCR3, (ccr3 & 0x0f) | 0x10); /* enable MAPEN */ /* Load/Store Serialize to mem access disable (=reorder it) */ - setCx86(CX86_PCR0, getCx86(CX86_PCR0) & ~0x80); + setCx86_old(CX86_PCR0, getCx86_old(CX86_PCR0) & ~0x80); /* set load/store serialize from 1GB to 4GB */ ccr3 |= 0xe0; setCx86(CX86_CCR3, ccr3); @@ -127,11 +127,11 @@ static void __cpuinit set_cx86_memwb(void) printk(KERN_INFO "Enable Memory-Write-back mode on Cyrix/NSC processor.\n"); /* CCR2 bit 2: unlock NW bit */ - setCx86(CX86_CCR2, getCx86(CX86_CCR2) & ~0x04); + setCx86_old(CX86_CCR2, getCx86_old(CX86_CCR2) & ~0x04); /* set 'Not Write-through' */ write_cr0(read_cr0() | X86_CR0_NW); /* CCR2 bit 2: lock NW bit and set WT1 */ - setCx86(CX86_CCR2, getCx86(CX86_CCR2) | 0x14); + setCx86_old(CX86_CCR2, getCx86_old(CX86_CCR2) | 0x14); } static void __cpuinit set_cx86_inc(void) @@ -144,10 +144,10 @@ static void __cpuinit set_cx86_inc(void) setCx86(CX86_CCR3, (ccr3 & 0x0f) | 0x10); /* enable MAPEN */ /* PCR1 -- Performance Control */ /* Incrementor on, whatever that is */ - setCx86(CX86_PCR1, getCx86(CX86_PCR1) | 0x02); + setCx86_old(CX86_PCR1, getCx86_old(CX86_PCR1) | 0x02); /* PCR0 -- Performance Control */ /* Incrementor Margin 10 */ - setCx86(CX86_PCR0, getCx86(CX86_PCR0) | 0x04); + setCx86_old(CX86_PCR0, getCx86_old(CX86_PCR0) | 0x04); setCx86(CX86_CCR3, ccr3); /* disable MAPEN */ } @@ -162,14 +162,14 @@ static void __cpuinit geode_configure(void) local_irq_save(flags); /* Suspend on halt power saving and enable #SUSP pin */ - setCx86(CX86_CCR2, getCx86(CX86_CCR2) | 0x88); + setCx86_old(CX86_CCR2, getCx86_old(CX86_CCR2) | 0x88); ccr3 = getCx86(CX86_CCR3); setCx86(CX86_CCR3, (ccr3 & 0x0f) | 0x10); /* enable MAPEN */ /* FPU fast, DTE cache, Mem bypass */ - setCx86(CX86_CCR4, getCx86(CX86_CCR4) | 0x38); + setCx86_old(CX86_CCR4, getCx86_old(CX86_CCR4) | 0x38); setCx86(CX86_CCR3, ccr3); /* disable MAPEN */ set_cx86_memwb(); @@ -286,7 +286,7 @@ static void __cpuinit init_cyrix(struct cpuinfo_x86 *c) /* GXm supports extended cpuid levels 'ala' AMD */ if (c->cpuid_level == 2) { /* Enable cxMMX extensions (GX1 Datasheet 54) */ - setCx86(CX86_CCR7, getCx86(CX86_CCR7) | 1); + setCx86_old(CX86_CCR7, getCx86_old(CX86_CCR7) | 1); /* * GXm : 0x30 ... 0x5f GXm datasheet 51 @@ -309,7 +309,7 @@ static void __cpuinit init_cyrix(struct cpuinfo_x86 *c) if (dir1 > 7) { dir0_msn++; /* M II */ /* Enable MMX extensions (App note 108) */ - setCx86(CX86_CCR7, getCx86(CX86_CCR7)|1); + setCx86_old(CX86_CCR7, getCx86_old(CX86_CCR7)|1); } else { c->coma_bug = 1; /* 6x86MX, it has the bug. */ } @@ -424,7 +424,7 @@ static void __cpuinit cyrix_identify(struct cpuinfo_x86 *c) local_irq_save(flags); ccr3 = getCx86(CX86_CCR3); setCx86(CX86_CCR3, (ccr3 & 0x0f) | 0x10); /* enable MAPEN */ - setCx86(CX86_CCR4, getCx86(CX86_CCR4) | 0x80); /* enable cpuid */ + setCx86_old(CX86_CCR4, getCx86_old(CX86_CCR4) | 0x80); /* enable cpuid */ setCx86(CX86_CCR3, ccr3); /* disable MAPEN */ local_irq_restore(flags); } -- cgit v1.2.3 From 8cb22bcb1f3ef70d4d48092e9b057175ad9ec78d Mon Sep 17 00:00:00 2001 From: Mark Langsdorf Date: Fri, 18 Jul 2008 16:03:52 -0500 Subject: x86: L3 cache index disable for 2.6.26 New versions of AMD processors have support to disable parts of their L3 caches if too many MCEs are generated by the L3 cache. This patch provides a /sysfs interface under the cache hierarchy to display which caches indices are disabled (if any) and to monitoring applications to disable a cache index. This patch does not set an automatic policy to disable the L3 cache. Policy decisions would need to be made by a RAS handler. This patch merely makes it easier to see what indices are currently disabled. Signed-off-by: Mark Langsdorf Signed-off-by: Ingo Molnar --- arch/x86/kernel/cpu/intel_cacheinfo.c | 87 ++++++++++++++++++++++++++++++++--- 1 file changed, 81 insertions(+), 6 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/cpu/intel_cacheinfo.c b/arch/x86/kernel/cpu/intel_cacheinfo.c index ff517f0b8cc..d6ea50e270e 100644 --- a/arch/x86/kernel/cpu/intel_cacheinfo.c +++ b/arch/x86/kernel/cpu/intel_cacheinfo.c @@ -16,6 +16,7 @@ #include #include +#include #define LVL_1_INST 1 #define LVL_1_DATA 2 @@ -130,6 +131,7 @@ struct _cpuid4_info { union _cpuid4_leaf_ebx ebx; union _cpuid4_leaf_ecx ecx; unsigned long size; + unsigned long can_disable; cpumask_t shared_cpu_map; /* future?: only cpus/node is needed */ }; @@ -251,6 +253,13 @@ static void __cpuinit amd_cpuid4(int leaf, union _cpuid4_leaf_eax *eax, (ebx->split.ways_of_associativity + 1) - 1; } +static void __cpuinit amd_check_l3_disable(int index, struct _cpuid4_info *this_leaf) +{ + if (index < 3) + return; + this_leaf->can_disable = 1; +} + static int __cpuinit cpuid4_cache_lookup(int index, struct _cpuid4_info *this_leaf) { union _cpuid4_leaf_eax eax; @@ -258,9 +267,12 @@ static int __cpuinit cpuid4_cache_lookup(int index, struct _cpuid4_info *this_le union _cpuid4_leaf_ecx ecx; unsigned edx; - if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD) + if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD) { amd_cpuid4(index, &eax, &ebx, &ecx); - else + if (boot_cpu_data.x86 >= 0x10) + amd_check_l3_disable(index, this_leaf); + + } else cpuid_count(4, index, &eax.full, &ebx.full, &ecx.full, &edx); if (eax.split.type == CACHE_TYPE_NULL) return -EIO; /* better error ? */ @@ -637,6 +649,61 @@ static ssize_t show_type(struct _cpuid4_info *this_leaf, char *buf) { } } +#define to_object(k) container_of(k, struct _index_kobject, kobj) +#define to_attr(a) container_of(a, struct _cache_attr, attr) + +static ssize_t show_cache_disable(struct _cpuid4_info *this_leaf, char *buf) +{ + struct pci_dev *dev; + if (this_leaf->can_disable) { + int i; + ssize_t ret = 0; + int node = cpu_to_node(first_cpu(this_leaf->shared_cpu_map)); + dev = k8_northbridges[node]; + + for (i = 0; i < 2; i++) { + unsigned int reg; + pci_read_config_dword(dev, 0x1BC + i * 4, ®); + ret += sprintf(buf, "%sEntry: %d\n", buf, i); + ret += sprintf(buf, "%sReads: %s\tNew Entries: %s\n", + buf, + reg & 0x80000000 ? "Disabled" : "Allowed", + reg & 0x40000000 ? "Disabled" : "Allowed"); + ret += sprintf(buf, "%sSubCache: %x\tIndex: %x\n", buf, + (reg & 0x30000) >> 16, reg & 0xfff); + + } + return ret; + } + return sprintf(buf, "Feature not enabled\n"); +} + +static ssize_t store_cache_disable(struct _cpuid4_info *this_leaf, const char *buf, size_t count) +{ + struct pci_dev *dev; + if (this_leaf->can_disable) { + /* write the MSR value */ + unsigned int ret; + unsigned int index, val; + int node = cpu_to_node(first_cpu(this_leaf->shared_cpu_map)); + dev = k8_northbridges[node]; + + if (strlen(buf) > 15) + return -EINVAL; + ret = sscanf(buf, "%x %x", &index, &val); + if (ret != 2) + return -EINVAL; + if (index > 1) + return -EINVAL; + val |= 0xc0000000; + pci_write_config_dword(dev, 0x1BC + index * 4, val & ~0x40000000); + wbinvd(); + pci_write_config_dword(dev, 0x1BC + index * 4, val); + return 1; + } + return 0; +} + struct _cache_attr { struct attribute attr; ssize_t (*show)(struct _cpuid4_info *, char *); @@ -657,6 +724,8 @@ define_one_ro(size); define_one_ro(shared_cpu_map); define_one_ro(shared_cpu_list); +static struct _cache_attr cache_disable = __ATTR(cache_disable, 0644, show_cache_disable, store_cache_disable); + static struct attribute * default_attrs[] = { &type.attr, &level.attr, @@ -667,12 +736,10 @@ static struct attribute * default_attrs[] = { &size.attr, &shared_cpu_map.attr, &shared_cpu_list.attr, + &cache_disable.attr, NULL }; -#define to_object(k) container_of(k, struct _index_kobject, kobj) -#define to_attr(a) container_of(a, struct _cache_attr, attr) - static ssize_t show(struct kobject * kobj, struct attribute * attr, char * buf) { struct _cache_attr *fattr = to_attr(attr); @@ -689,7 +756,15 @@ static ssize_t show(struct kobject * kobj, struct attribute * attr, char * buf) static ssize_t store(struct kobject * kobj, struct attribute * attr, const char * buf, size_t count) { - return 0; + struct _cache_attr *fattr = to_attr(attr); + struct _index_kobject *this_leaf = to_object(kobj); + ssize_t ret; + + ret = fattr->store ? + fattr->store(CPUID4_INFO_IDX(this_leaf->cpu, this_leaf->index), + buf, count) : + 0; + return ret; } static struct sysfs_ops sysfs_ops = { -- cgit v1.2.3 From 7a4983bb5f94f6521aa3236fe5c035cf9bef543f Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 21 Jul 2008 13:34:21 +0200 Subject: x86: L3 cache index disable for 2.6.26, cleanups No change in functionality. Signed-off-by: Ingo Molnar --- arch/x86/kernel/cpu/intel_cacheinfo.c | 115 ++++++++++++++++++---------------- 1 file changed, 61 insertions(+), 54 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/cpu/intel_cacheinfo.c b/arch/x86/kernel/cpu/intel_cacheinfo.c index d6ea50e270e..a61c9e399ba 100644 --- a/arch/x86/kernel/cpu/intel_cacheinfo.c +++ b/arch/x86/kernel/cpu/intel_cacheinfo.c @@ -253,14 +253,16 @@ static void __cpuinit amd_cpuid4(int leaf, union _cpuid4_leaf_eax *eax, (ebx->split.ways_of_associativity + 1) - 1; } -static void __cpuinit amd_check_l3_disable(int index, struct _cpuid4_info *this_leaf) +static void __cpuinit +amd_check_l3_disable(int index, struct _cpuid4_info *this_leaf) { if (index < 3) return; this_leaf->can_disable = 1; } -static int __cpuinit cpuid4_cache_lookup(int index, struct _cpuid4_info *this_leaf) +static int +__cpuinit cpuid4_cache_lookup(int index, struct _cpuid4_info *this_leaf) { union _cpuid4_leaf_eax eax; union _cpuid4_leaf_ebx ebx; @@ -271,19 +273,20 @@ static int __cpuinit cpuid4_cache_lookup(int index, struct _cpuid4_info *this_le amd_cpuid4(index, &eax, &ebx, &ecx); if (boot_cpu_data.x86 >= 0x10) amd_check_l3_disable(index, this_leaf); - - } else - cpuid_count(4, index, &eax.full, &ebx.full, &ecx.full, &edx); + } else { + cpuid_count(4, index, &eax.full, &ebx.full, &ecx.full, &edx); + } + if (eax.split.type == CACHE_TYPE_NULL) return -EIO; /* better error ? */ this_leaf->eax = eax; this_leaf->ebx = ebx; this_leaf->ecx = ecx; - this_leaf->size = (ecx.split.number_of_sets + 1) * - (ebx.split.coherency_line_size + 1) * - (ebx.split.physical_line_partition + 1) * - (ebx.split.ways_of_associativity + 1); + this_leaf->size = (ecx.split.number_of_sets + 1) * + (ebx.split.coherency_line_size + 1) * + (ebx.split.physical_line_partition + 1) * + (ebx.split.ways_of_associativity + 1); return 0; } @@ -649,59 +652,63 @@ static ssize_t show_type(struct _cpuid4_info *this_leaf, char *buf) { } } -#define to_object(k) container_of(k, struct _index_kobject, kobj) -#define to_attr(a) container_of(a, struct _cache_attr, attr) +#define to_object(k) container_of(k, struct _index_kobject, kobj) +#define to_attr(a) container_of(a, struct _cache_attr, attr) static ssize_t show_cache_disable(struct _cpuid4_info *this_leaf, char *buf) { - struct pci_dev *dev; - if (this_leaf->can_disable) { - int i; - ssize_t ret = 0; - int node = cpu_to_node(first_cpu(this_leaf->shared_cpu_map)); - dev = k8_northbridges[node]; - - for (i = 0; i < 2; i++) { - unsigned int reg; - pci_read_config_dword(dev, 0x1BC + i * 4, ®); - ret += sprintf(buf, "%sEntry: %d\n", buf, i); - ret += sprintf(buf, "%sReads: %s\tNew Entries: %s\n", - buf, - reg & 0x80000000 ? "Disabled" : "Allowed", - reg & 0x40000000 ? "Disabled" : "Allowed"); - ret += sprintf(buf, "%sSubCache: %x\tIndex: %x\n", buf, - (reg & 0x30000) >> 16, reg & 0xfff); + int node = cpu_to_node(first_cpu(this_leaf->shared_cpu_map)); + struct pci_dev *dev = k8_northbridges[node]; + ssize_t ret = 0; + int i; - } - return ret; + if (!this_leaf->can_disable) + return sprintf(buf, "Feature not enabled\n"); + + for (i = 0; i < 2; i++) { + unsigned int reg; + + pci_read_config_dword(dev, 0x1BC + i * 4, ®); + + ret += sprintf(buf, "%sEntry: %d\n", buf, i); + ret += sprintf(buf, "%sReads: %s\tNew Entries: %s\n", + buf, + reg & 0x80000000 ? "Disabled" : "Allowed", + reg & 0x40000000 ? "Disabled" : "Allowed"); + ret += sprintf(buf, "%sSubCache: %x\tIndex: %x\n", + buf, (reg & 0x30000) >> 16, reg & 0xfff); } - return sprintf(buf, "Feature not enabled\n"); + return ret; } -static ssize_t store_cache_disable(struct _cpuid4_info *this_leaf, const char *buf, size_t count) +static ssize_t +store_cache_disable(struct _cpuid4_info *this_leaf, const char *buf, + size_t count) { - struct pci_dev *dev; - if (this_leaf->can_disable) { - /* write the MSR value */ - unsigned int ret; - unsigned int index, val; - int node = cpu_to_node(first_cpu(this_leaf->shared_cpu_map)); - dev = k8_northbridges[node]; - - if (strlen(buf) > 15) - return -EINVAL; - ret = sscanf(buf, "%x %x", &index, &val); - if (ret != 2) - return -EINVAL; - if (index > 1) - return -EINVAL; - val |= 0xc0000000; - pci_write_config_dword(dev, 0x1BC + index * 4, val & ~0x40000000); - wbinvd(); - pci_write_config_dword(dev, 0x1BC + index * 4, val); - return 1; - } - return 0; + int node = cpu_to_node(first_cpu(this_leaf->shared_cpu_map)); + struct pci_dev *dev = k8_northbridges[node]; + unsigned int ret, index, val; + + if (!this_leaf->can_disable) + return 0; + + /* write the MSR value */ + + if (strlen(buf) > 15) + return -EINVAL; + + ret = sscanf(buf, "%x %x", &index, &val); + if (ret != 2) + return -EINVAL; + if (index > 1) + return -EINVAL; + + val |= 0xc0000000; + pci_write_config_dword(dev, 0x1BC + index * 4, val & ~0x40000000); + wbinvd(); + pci_write_config_dword(dev, 0x1BC + index * 4, val); + + return 1; } struct _cache_attr { -- cgit v1.2.3 From a24e8d36f5fc047dac9af6200322ed393f2e3175 Mon Sep 17 00:00:00 2001 From: Mark Langsdorf Date: Tue, 22 Jul 2008 13:06:02 -0500 Subject: x86: L3 cache index disable for 2.6.26 On Monday 21 July 2008, Ingo Molnar wrote: > > applied to tip/x86/cpu, thanks Mark. > > > > I've done some coding style fixes for the new functions you've > > introduced, see that commit below. > > -tip testing found the following build failure: > > arch/x86/kernel/built-in.o: In function `show_cache_disable': > intel_cacheinfo.c:(.text+0xbbf2): undefined reference to `k8_northbridges' > arch/x86/kernel/built-in.o: In function `store_cache_disable': > intel_cacheinfo.c:(.text+0xbd91): undefined reference to `k8_northbridges' > > please send a delta fix patch against the tip/x86/cpu branch: > > http://people.redhat.com/mingo/tip.git/README > > which has your patch plus the cleanup applied. delta fix patch follows. It removes the dependency on k8_northbridges. -Mark Langsdorf Operating System Research Center AMD Signed-off-by: Mark Langsdorf Signed-off-by: Ingo Molnar --- arch/x86/kernel/cpu/intel_cacheinfo.c | 43 +++++++++++++++++++++++++++++++---- 1 file changed, 38 insertions(+), 5 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/cpu/intel_cacheinfo.c b/arch/x86/kernel/cpu/intel_cacheinfo.c index a61c9e399ba..a0c6c6ffed4 100644 --- a/arch/x86/kernel/cpu/intel_cacheinfo.c +++ b/arch/x86/kernel/cpu/intel_cacheinfo.c @@ -13,10 +13,10 @@ #include #include #include +#include #include #include -#include #define LVL_1_INST 1 #define LVL_1_DATA 2 @@ -135,6 +135,12 @@ struct _cpuid4_info { cpumask_t shared_cpu_map; /* future?: only cpus/node is needed */ }; +static struct pci_device_id k8_nb_id[] = { + { PCI_DEVICE(PCI_VENDOR_ID_AMD, 0x1103) }, + { PCI_DEVICE(PCI_VENDOR_ID_AMD, 0x1203) }, + {} +}; + unsigned short num_cache_leaves; /* AMD doesn't have CPUID4. Emulate it here to report the same @@ -655,16 +661,39 @@ static ssize_t show_type(struct _cpuid4_info *this_leaf, char *buf) { #define to_object(k) container_of(k, struct _index_kobject, kobj) #define to_attr(a) container_of(a, struct _cache_attr, attr) +static struct pci_dev *get_k8_northbridge(int node) +{ + struct pci_dev *dev = NULL; + int i; + + for (i = 0; i <= node; i++) { + do { + dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev); + if (!dev) + break; + } while (!pci_match_id(&k8_nb_id[0], dev)); + if (!dev) + break; + } + return dev; +} + static ssize_t show_cache_disable(struct _cpuid4_info *this_leaf, char *buf) { int node = cpu_to_node(first_cpu(this_leaf->shared_cpu_map)); - struct pci_dev *dev = k8_northbridges[node]; + struct pci_dev *dev = NULL; ssize_t ret = 0; int i; if (!this_leaf->can_disable) return sprintf(buf, "Feature not enabled\n"); + dev = get_k8_northbridge(node); + if (!dev) { + printk(KERN_ERR "Attempting AMD northbridge operation on a system with no northbridge\n"); + return -EINVAL; + } + for (i = 0; i < 2; i++) { unsigned int reg; @@ -686,14 +715,12 @@ store_cache_disable(struct _cpuid4_info *this_leaf, const char *buf, size_t count) { int node = cpu_to_node(first_cpu(this_leaf->shared_cpu_map)); - struct pci_dev *dev = k8_northbridges[node]; + struct pci_dev *dev = NULL; unsigned int ret, index, val; if (!this_leaf->can_disable) return 0; - /* write the MSR value */ - if (strlen(buf) > 15) return -EINVAL; @@ -704,6 +731,12 @@ store_cache_disable(struct _cpuid4_info *this_leaf, const char *buf, return -EINVAL; val |= 0xc0000000; + dev = get_k8_northbridge(node); + if (!dev) { + printk(KERN_ERR "Attempting AMD northbridge operation on a system with no northbridge\n"); + return -EINVAL; + } + pci_write_config_dword(dev, 0x1BC + index * 4, val & ~0x40000000); wbinvd(); pci_write_config_dword(dev, 0x1BC + index * 4, val); -- cgit v1.2.3 From cdcf772ed163651cacac8098b4974aba7f9e1c73 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 28 Jul 2008 16:20:08 +0200 Subject: x86 l3 cache index disable for 2 6 26 fix Signed-off-by: Ingo Molnar --- arch/x86/kernel/cpu/intel_cacheinfo.c | 39 ++++++++++++++++++----------------- 1 file changed, 20 insertions(+), 19 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/cpu/intel_cacheinfo.c b/arch/x86/kernel/cpu/intel_cacheinfo.c index a0c6c6ffed4..535d662716d 100644 --- a/arch/x86/kernel/cpu/intel_cacheinfo.c +++ b/arch/x86/kernel/cpu/intel_cacheinfo.c @@ -1,8 +1,8 @@ /* - * Routines to indentify caches on Intel CPU. + * Routines to indentify caches on Intel CPU. * - * Changes: - * Venkatesh Pallipadi : Adding cache identification through cpuid(4) + * Changes: + * Venkatesh Pallipadi : Adding cache identification through cpuid(4) * Ashok Raj : Work with CPU hotplug infrastructure. * Andi Kleen / Andreas Herrmann : CPUID4 emulation on AMD. */ @@ -136,9 +136,9 @@ struct _cpuid4_info { }; static struct pci_device_id k8_nb_id[] = { - { PCI_DEVICE(PCI_VENDOR_ID_AMD, 0x1103) }, - { PCI_DEVICE(PCI_VENDOR_ID_AMD, 0x1203) }, - {} + { PCI_DEVICE(PCI_VENDOR_ID_AMD, 0x1103) }, + { PCI_DEVICE(PCI_VENDOR_ID_AMD, 0x1203) }, + {} }; unsigned short num_cache_leaves; @@ -190,9 +190,10 @@ static unsigned short assocs[] __cpuinitdata = { static unsigned char levels[] __cpuinitdata = { 1, 1, 2, 3 }; static unsigned char types[] __cpuinitdata = { 1, 2, 3, 3 }; -static void __cpuinit amd_cpuid4(int leaf, union _cpuid4_leaf_eax *eax, - union _cpuid4_leaf_ebx *ebx, - union _cpuid4_leaf_ecx *ecx) +static void __cpuinit +amd_cpuid4(int leaf, union _cpuid4_leaf_eax *eax, + union _cpuid4_leaf_ebx *ebx, + union _cpuid4_leaf_ecx *ecx) { unsigned dummy; unsigned line_size, lines_per_tag, assoc, size_in_kb; @@ -264,7 +265,7 @@ amd_check_l3_disable(int index, struct _cpuid4_info *this_leaf) { if (index < 3) return; - this_leaf->can_disable = 1; + this_leaf->can_disable = 1; } static int @@ -474,7 +475,7 @@ unsigned int __cpuinit init_intel_cacheinfo(struct cpuinfo_x86 *c) /* pointer to _cpuid4_info array (for each cache leaf) */ static DEFINE_PER_CPU(struct _cpuid4_info *, cpuid4_info); -#define CPUID4_INFO_IDX(x, y) (&((per_cpu(cpuid4_info, x))[y])) +#define CPUID4_INFO_IDX(x, y) (&((per_cpu(cpuid4_info, x))[y])) #ifdef CONFIG_SMP static void __cpuinit cache_shared_cpu_map_setup(unsigned int cpu, int index) @@ -511,7 +512,7 @@ static void __cpuinit cache_remove_shared_cpu_map(unsigned int cpu, int index) this_leaf = CPUID4_INFO_IDX(cpu, index); for_each_cpu_mask(sibling, this_leaf->shared_cpu_map) { - sibling_leaf = CPUID4_INFO_IDX(sibling, index); + sibling_leaf = CPUID4_INFO_IDX(sibling, index); cpu_clear(cpu, sibling_leaf->shared_cpu_map); } } @@ -593,7 +594,7 @@ struct _index_kobject { /* pointer to array of kobjects for cpuX/cache/indexY */ static DEFINE_PER_CPU(struct _index_kobject *, index_kobject); -#define INDEX_KOBJECT_PTR(x, y) (&((per_cpu(index_kobject, x))[y])) +#define INDEX_KOBJECT_PTR(x, y) (&((per_cpu(index_kobject, x))[y])) #define show_one_plus(file_name, object, val) \ static ssize_t show_##file_name \ @@ -675,7 +676,7 @@ static struct pci_dev *get_k8_northbridge(int node) if (!dev) break; } - return dev; + return dev; } static ssize_t show_cache_disable(struct _cpuid4_info *this_leaf, char *buf) @@ -736,7 +737,7 @@ store_cache_disable(struct _cpuid4_info *this_leaf, const char *buf, printk(KERN_ERR "Attempting AMD northbridge operation on a system with no northbridge\n"); return -EINVAL; } - + pci_write_config_dword(dev, 0x1BC + index * 4, val & ~0x40000000); wbinvd(); pci_write_config_dword(dev, 0x1BC + index * 4, val); @@ -789,7 +790,7 @@ static ssize_t show(struct kobject * kobj, struct attribute * attr, char * buf) ret = fattr->show ? fattr->show(CPUID4_INFO_IDX(this_leaf->cpu, this_leaf->index), buf) : - 0; + 0; return ret; } @@ -800,9 +801,9 @@ static ssize_t store(struct kobject * kobj, struct attribute * attr, struct _index_kobject *this_leaf = to_object(kobj); ssize_t ret; - ret = fattr->store ? - fattr->store(CPUID4_INFO_IDX(this_leaf->cpu, this_leaf->index), - buf, count) : + ret = fattr->store ? + fattr->store(CPUID4_INFO_IDX(this_leaf->cpu, this_leaf->index), + buf, count) : 0; return ret; } -- cgit v1.2.3 From 239bd83104ec6bcba90221d8b0973d2565142ef8 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 28 Jul 2008 16:45:49 +0200 Subject: x86: L3 cache index disable for 2.6.26, fix #2 fix !PCI build failure: arch/x86/kernel/cpu/intel_cacheinfo.c: In function 'get_k8_northbridge': arch/x86/kernel/cpu/intel_cacheinfo.c:675: error: implicit declaration of function 'pci_match_id' Signed-off-by: Ingo Molnar --- arch/x86/kernel/cpu/intel_cacheinfo.c | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'arch/x86') diff --git a/arch/x86/kernel/cpu/intel_cacheinfo.c b/arch/x86/kernel/cpu/intel_cacheinfo.c index d763d24187c..1677b55371a 100644 --- a/arch/x86/kernel/cpu/intel_cacheinfo.c +++ b/arch/x86/kernel/cpu/intel_cacheinfo.c @@ -135,11 +135,13 @@ struct _cpuid4_info { cpumask_t shared_cpu_map; /* future?: only cpus/node is needed */ }; +#ifdef CONFIG_PCI static struct pci_device_id k8_nb_id[] = { { PCI_DEVICE(PCI_VENDOR_ID_AMD, 0x1103) }, { PCI_DEVICE(PCI_VENDOR_ID_AMD, 0x1203) }, {} }; +#endif unsigned short num_cache_leaves; @@ -663,6 +665,7 @@ static ssize_t show_type(struct _cpuid4_info *this_leaf, char *buf) { #define to_object(k) container_of(k, struct _index_kobject, kobj) #define to_attr(a) container_of(a, struct _cache_attr, attr) +#ifdef CONFIG_PCI static struct pci_dev *get_k8_northbridge(int node) { struct pci_dev *dev = NULL; @@ -679,6 +682,12 @@ static struct pci_dev *get_k8_northbridge(int node) } return dev; } +#else +static struct pci_dev *get_k8_northbridge(int node) +{ + return NULL; +} +#endif static ssize_t show_cache_disable(struct _cpuid4_info *this_leaf, char *buf) { -- cgit v1.2.3 From 9dd1e9eb5cd6f79d4efda57db4e26dfa31ff9ae5 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Mon, 11 Aug 2008 23:11:05 +0200 Subject: x86/PCI: allow scanning of 255 PCI busses Fix an old off by one error in the legacy PCI bus check. 0xff is a valid bus. Signed-off-by: Andi Kleen Signed-off-by: Jesse Barnes --- arch/x86/pci/legacy.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/x86') diff --git a/arch/x86/pci/legacy.c b/arch/x86/pci/legacy.c index ec9ce35e44d..b722dd481b3 100644 --- a/arch/x86/pci/legacy.c +++ b/arch/x86/pci/legacy.c @@ -14,7 +14,7 @@ static void __devinit pcibios_fixup_peer_bridges(void) int n, devfn; long node; - if (pcibios_last_bus <= 0 || pcibios_last_bus >= 0xff) + if (pcibios_last_bus <= 0 || pcibios_last_bus > 0xff) return; DBG("PCI: Peer bridge fixup\n"); -- cgit v1.2.3 From 7b27718bdb1b70166383dec91391df5534d449ee Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Wed, 13 Aug 2008 10:07:05 +0200 Subject: x86: fix setup code crashes on my old 486 box yesterday I tried to reactivate my old 486 box and wanted to install a current Linux with latest kernel on it. But it turned out that the latest kernel does not boot because the machine crashes early in the setup code. After some debugging it turned out that the problem is the query_ist() function. If this interrupt with that function is called the machine simply locks up. It looks like a BIOS bug. Looking for a workaround for this problem I wrote the attached patch. It checks for the CPUID instruction and if it is not implemented it does not call the speedstep BIOS function. As far as I know speedstep should be available since some Pentium earliest. Alan Cox observed that it's available since the Pentium II, so cpuid levels 4 and 5 can be excluded altogether. H. Peter Anvin cleaned up the code some more: > Right in concept, but I dislike the implementation (duplication of the > CPU detect code we already have). Could you try this patch and see if > it works for you? which, with a small modification to fix a build error with it the resulting kernel boots on my machine. Signed-off-by: Joerg Roedel Signed-off-by: "H. Peter Anvin" Cc: Signed-off-by: Ingo Molnar --- arch/x86/boot/boot.h | 8 ++++++++ arch/x86/boot/cpucheck.c | 8 +------- arch/x86/boot/main.c | 4 ++++ 3 files changed, 13 insertions(+), 7 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/boot/boot.h b/arch/x86/boot/boot.h index a34b9982c7c..9d4b4b43d97 100644 --- a/arch/x86/boot/boot.h +++ b/arch/x86/boot/boot.h @@ -25,6 +25,8 @@ #include #include +#define NCAPINTS 8 + /* Useful macros */ #define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)])) @@ -242,6 +244,12 @@ int cmdline_find_option(const char *option, char *buffer, int bufsize); int cmdline_find_option_bool(const char *option); /* cpu.c, cpucheck.c */ +struct cpu_features { + int level; /* Family, or 64 for x86-64 */ + int model; + u32 flags[NCAPINTS]; +}; +extern struct cpu_features cpu; int check_cpu(int *cpu_level_ptr, int *req_level_ptr, u32 **err_flags_ptr); int validate_cpu(void); diff --git a/arch/x86/boot/cpucheck.c b/arch/x86/boot/cpucheck.c index 7804389ee00..c1ce0303d99 100644 --- a/arch/x86/boot/cpucheck.c +++ b/arch/x86/boot/cpucheck.c @@ -30,13 +30,7 @@ #include #include -struct cpu_features { - int level; /* Family, or 64 for x86-64 */ - int model; - u32 flags[NCAPINTS]; -}; - -static struct cpu_features cpu; +struct cpu_features cpu; static u32 cpu_vendor[3]; static u32 err_flags[NCAPINTS]; diff --git a/arch/x86/boot/main.c b/arch/x86/boot/main.c index 2296164b54d..01aa64b5575 100644 --- a/arch/x86/boot/main.c +++ b/arch/x86/boot/main.c @@ -73,6 +73,10 @@ static void keyboard_set_repeat(void) */ static void query_ist(void) { + /* Some 486 BIOSes apparently crash on this call */ + if (cpu.level < 6) + return; + asm("int $0x15" : "=a" (boot_params.ist_info.signature), "=b" (boot_params.ist_info.command), -- cgit v1.2.3 From c9d08f0860d47ed6a3fe91d0f19335086179be7b Mon Sep 17 00:00:00 2001 From: Marcin Slusarz Date: Tue, 12 Aug 2008 23:23:03 +0200 Subject: x86: fix 2 section mismatch warnings - map_high() WARNING: vmlinux.o(.text+0x14cf8): Section mismatch in reference from the function map_high() to the function .init.text:init_extra_mapping_uc() The function map_high() references the function __init init_extra_mapping_uc(). This is often because map_high lacks a __init annotation or the annotation of init_extra_mapping_uc is wrong. WARNING: vmlinux.o(.text+0x14d05): Section mismatch in reference from the function map_high() to the function .init.text:init_extra_mapping_wb() The function map_high() references the function __init init_extra_mapping_wb(). This is often because map_high lacks a __init annotation or the annotation of init_extra_mapping_wb is wrong. map_high is called only from __init functions (map_*_high) and calls 2 __init_functions (init_extra_mapping_*) 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') diff --git a/arch/x86/kernel/genx2apic_uv_x.c b/arch/x86/kernel/genx2apic_uv_x.c index 2cfcbded888..2d7e307c777 100644 --- a/arch/x86/kernel/genx2apic_uv_x.c +++ b/arch/x86/kernel/genx2apic_uv_x.c @@ -222,7 +222,7 @@ static __init void map_low_mmrs(void) enum map_type {map_wb, map_uc}; -static void map_high(char *id, unsigned long base, int shift, enum map_type map_type) +static __init void map_high(char *id, unsigned long base, int shift, enum map_type map_type) { unsigned long bytes, paddr; -- cgit v1.2.3 From 6b3560229d3b6be7443fa9f9c6502e660bcfef5f Mon Sep 17 00:00:00 2001 From: Marcin Slusarz Date: Tue, 12 Aug 2008 23:23:05 +0200 Subject: x86: fix 2 section mismatch warnings - find_and_reserve_crashkernel WARNING: vmlinux.o(.text+0xcd1f): Section mismatch in reference from the function find_and_reserve_crashkernel() to the function .init.text:find_e820_area() The function find_and_reserve_crashkernel() references the function __init find_e820_area(). This is often because find_and_reserve_crashkernel lacks a __init annotation or the annotation of find_e820_area is wrong. WARNING: vmlinux.o(.text+0xcd38): Section mismatch in reference from the function find_and_reserve_crashkernel() to the function .init.text:reserve_bootmem_generic() The function find_and_reserve_crashkernel() references the function __init reserve_bootmem_generic(). This is often because find_and_reserve_crashkernel lacks a __init annotation or the annotation of reserve_bootmem_generic is wrong. find_and_reserve_crashkernel is called from __init function (reserve_crashkernel) and calls 2 __init functions (find_e820_area, reserve_bootmem_generic), so mark it __init Signed-off-by: Marcin Slusarz Signed-off-by: Ingo Molnar --- arch/x86/kernel/setup.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index 68b48e3fbcb..a4656adab53 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -445,7 +445,7 @@ static void __init reserve_early_setup_data(void) * @size: Size of the crashkernel memory to reserve. * Returns the base address on success, and -1ULL on failure. */ -unsigned long long find_and_reserve_crashkernel(unsigned long long size) +unsigned long long __init find_and_reserve_crashkernel(unsigned long long size) { const unsigned long long alignment = 16<<20; /* 16M */ unsigned long long start = 0LL; -- cgit v1.2.3 From a726c6009e6eba4acfccf8b683854866eeabb184 Mon Sep 17 00:00:00 2001 From: John Keller Date: Tue, 29 Jul 2008 14:34:16 -0500 Subject: x86: allow MMCONFIG above 4GB on x86_64 SGI UV will have MMCFG base addresses that are greater than 4GB (32 bits). v2: Use CONFIG_RESOURCES_64BIT instead of CONFIG_X86_64. v3: Create a flag, that is set by platform specific code, to disable the > 4GB check. Signed-off-by: John Keller Cc: jpk@sgi.com Signed-off-by: Ingo Molnar --- arch/x86/kernel/acpi/boot.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c index fa88a1d7129..bfd10fd211c 100644 --- a/arch/x86/kernel/acpi/boot.c +++ b/arch/x86/kernel/acpi/boot.c @@ -97,6 +97,8 @@ 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 -------------------------------------------------------------------------- */ @@ -158,6 +160,14 @@ char *__init __acpi_map_table(unsigned long phys, unsigned long size) struct acpi_mcfg_allocation *pci_mmcfg_config; int pci_mmcfg_config_num; +static int __init acpi_mcfg_oem_check(struct acpi_table_mcfg *mcfg) +{ + if (!strcmp(mcfg->header.oem_id, "SGI")) + acpi_mcfg_64bit_base_addr = TRUE; + + return 0; +} + int __init acpi_parse_mcfg(struct acpi_table_header *header) { struct acpi_table_mcfg *mcfg; @@ -190,8 +200,12 @@ int __init acpi_parse_mcfg(struct acpi_table_header *header) } memcpy(pci_mmcfg_config, &mcfg[1], config_size); + + acpi_mcfg_oem_check(mcfg); + for (i = 0; i < pci_mmcfg_config_num; ++i) { - if (pci_mmcfg_config[i].address > 0xFFFFFFFF) { + if ((pci_mmcfg_config[i].address > 0xFFFFFFFF) && + !acpi_mcfg_64bit_base_addr) { printk(KERN_ERR PREFIX "MMCONFIG not in low 4GB of memory\n"); kfree(pci_mmcfg_config); -- cgit v1.2.3 From 875e40b97571e1f06d1184ad6cbb2acf9cb31a23 Mon Sep 17 00:00:00 2001 From: Arjan van de Ven Date: Wed, 30 Jul 2008 12:26:26 -0700 Subject: x86: use WARN() in arch/x86/mm/pageattr.c Use WARN() instead of a printk+WARN_ON() pair; this way the message becomes part of the warning section for better reporting/collection. Signed-off-by: Arjan van de Ven Acked-by: Ingo Molnar Signed-off-by: Andrew Morton Cc: akpm@linux-foundation.org Cc: arjan@linux.intel.com Signed-off-by: Ingo Molnar --- arch/x86/mm/pageattr-test.c | 3 +-- arch/x86/mm/pageattr.c | 3 +-- 2 files changed, 2 insertions(+), 4 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/mm/pageattr-test.c b/arch/x86/mm/pageattr-test.c index 0dcd42eb94e..d4aa503caaa 100644 --- a/arch/x86/mm/pageattr-test.c +++ b/arch/x86/mm/pageattr-test.c @@ -221,8 +221,7 @@ static int pageattr_test(void) failed += print_split(&sc); if (failed) { - printk(KERN_ERR "NOT PASSED. Please report.\n"); - WARN_ON(1); + WARN(1, KERN_ERR "NOT PASSED. Please report.\n"); return -EINVAL; } else { if (print) diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c index 65c6e46bf05..ba24537d69d 100644 --- a/arch/x86/mm/pageattr.c +++ b/arch/x86/mm/pageattr.c @@ -592,10 +592,9 @@ repeat: if (!pte_val(old_pte)) { if (!primary) return 0; - printk(KERN_WARNING "CPA: called for zero pte. " + WARN(1, KERN_WARNING "CPA: called for zero pte. " "vaddr = %lx cpa->vaddr = %lx\n", address, cpa->vaddr); - WARN_ON(1); return -EINVAL; } -- cgit v1.2.3 From c2dcfde8274883e1f6050784dcbd34b01e824b91 Mon Sep 17 00:00:00 2001 From: "H. Peter Anvin" Date: Wed, 13 Aug 2008 13:14:22 -0700 Subject: x86: cleanup for setup code crashes during IST probe Clean up the code for crashes during SpeedStep probing on older machines. Signed-off-by: H. Peter Anvin Signed-off-by: Ingo Molnar --- arch/x86/boot/boot.h | 4 ++-- arch/x86/boot/cpu.c | 3 --- arch/x86/boot/cpucheck.c | 2 -- arch/x86/boot/main.c | 3 ++- 4 files changed, 4 insertions(+), 8 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/boot/boot.h b/arch/x86/boot/boot.h index 9d4b4b43d97..616b804a229 100644 --- a/arch/x86/boot/boot.h +++ b/arch/x86/boot/boot.h @@ -24,8 +24,8 @@ #include #include #include - -#define NCAPINTS 8 +#include "bitops.h" +#include /* Useful macros */ #define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)])) diff --git a/arch/x86/boot/cpu.c b/arch/x86/boot/cpu.c index 92d6fd73dc7..75298fe2edc 100644 --- a/arch/x86/boot/cpu.c +++ b/arch/x86/boot/cpu.c @@ -16,9 +16,6 @@ */ #include "boot.h" -#include "bitops.h" -#include - #include "cpustr.h" static char *cpu_name(int level) diff --git a/arch/x86/boot/cpucheck.c b/arch/x86/boot/cpucheck.c index c1ce0303d99..4b9ae7c5674 100644 --- a/arch/x86/boot/cpucheck.c +++ b/arch/x86/boot/cpucheck.c @@ -22,10 +22,8 @@ #ifdef _SETUP # include "boot.h" -# include "bitops.h" #endif #include -#include #include #include #include diff --git a/arch/x86/boot/main.c b/arch/x86/boot/main.c index 01aa64b5575..197421db1af 100644 --- a/arch/x86/boot/main.c +++ b/arch/x86/boot/main.c @@ -73,7 +73,8 @@ static void keyboard_set_repeat(void) */ static void query_ist(void) { - /* Some 486 BIOSes apparently crash on this call */ + /* Some older BIOSes apparently crash on this call, so filter + it from machines too old to have SpeedStep at all. */ if (cpu.level < 6) return; -- cgit v1.2.3 From 23b49c19f6946cc33392a1fc75dd788dd4a90fb7 Mon Sep 17 00:00:00 2001 From: Max Krasnyansky Date: Mon, 11 Aug 2008 14:55:31 -0700 Subject: x86: resurrect proper handling of maxcpus= kernel option (v2) For some reason we had two parsers registered for maxcpus=. One in init/main.c and another in arch/x86/smpboot.c. So I nuked the one in arch/x86. Also 64-bit kernels used to handle maxcpus= as documented in Documentation/cpu-hotplug.txt. CPUs with 'id > maxcpus' are initialized but not booted. 32-bit version for some reason ignored them even though all the infrastructure for booting them later is there. In the current mainline both 64 and 32 bit versions are broken. This patch restores the correct behaviour. I've tested x86_64 version on 4- and 8- way Core2 and 2-way Opteron based machines. Various config combinations SMP, !SMP, CPU_HOTPLUG, !CPU_HOTPLUG. Booted with maxcpus=1 and maxcpus=4, etc. Everything is working as expected. So far we've received two reports from different people confirming that 32-bit version also works fine, both on dual core laptops and 16way server machines. [v2: This version fixes visws breakage pointed out by Ingo.] Signed-off-by: Max Krasnyansky Cc: lizf@cn.fujitsu.com Cc: jeff.chua.linux@gmail.com Signed-off-by: Ingo Molnar --- arch/x86/kernel/apic_32.c | 8 -------- arch/x86/kernel/apic_64.c | 7 ------- arch/x86/kernel/smpboot.c | 14 -------------- arch/x86/kernel/visws_quirks.c | 6 ++---- 4 files changed, 2 insertions(+), 33 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/apic_32.c b/arch/x86/kernel/apic_32.c index 039a8d4aaf6..f88bd0d982b 100644 --- a/arch/x86/kernel/apic_32.c +++ b/arch/x86/kernel/apic_32.c @@ -1454,8 +1454,6 @@ void disconnect_bsp_APIC(int virt_wire_setup) } } -unsigned int __cpuinitdata maxcpus = NR_CPUS; - void __cpuinit generic_processor_info(int apicid, int version) { int cpu; @@ -1482,12 +1480,6 @@ void __cpuinit generic_processor_info(int apicid, int version) return; } - if (num_processors >= maxcpus) { - printk(KERN_WARNING "WARNING: maxcpus limit of %i reached." - " Processor ignored.\n", maxcpus); - return; - } - num_processors++; cpus_complement(tmp_map, cpu_present_map); cpu = first_cpu(tmp_map); diff --git a/arch/x86/kernel/apic_64.c b/arch/x86/kernel/apic_64.c index 7f1f030da7e..446c062e831 100644 --- a/arch/x86/kernel/apic_64.c +++ b/arch/x86/kernel/apic_64.c @@ -90,7 +90,6 @@ static unsigned long apic_phys; unsigned long mp_lapic_addr; -unsigned int __cpuinitdata maxcpus = NR_CPUS; /* * Get the LAPIC version */ @@ -1062,12 +1061,6 @@ void __cpuinit generic_processor_info(int apicid, int version) return; } - if (num_processors >= maxcpus) { - printk(KERN_WARNING "WARNING: maxcpus limit of %i reached." - " Processor ignored.\n", maxcpus); - return; - } - num_processors++; cpus_complement(tmp_map, cpu_present_map); cpu = first_cpu(tmp_map); diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c index 91055d7fc1b..e25287e4a85 100644 --- a/arch/x86/kernel/smpboot.c +++ b/arch/x86/kernel/smpboot.c @@ -1386,17 +1386,3 @@ void __cpu_die(unsigned int cpu) BUG(); } #endif - -/* - * If the BIOS enumerates physical processors before logical, - * maxcpus=N at enumeration-time can be used to disable HT. - */ -static int __init parse_maxcpus(char *arg) -{ - extern unsigned int maxcpus; - - if (arg) - maxcpus = simple_strtoul(arg, NULL, 0); - return 0; -} -early_param("maxcpus", parse_maxcpus); diff --git a/arch/x86/kernel/visws_quirks.c b/arch/x86/kernel/visws_quirks.c index 41e01b145c4..594ef47f0a6 100644 --- a/arch/x86/kernel/visws_quirks.c +++ b/arch/x86/kernel/visws_quirks.c @@ -184,8 +184,6 @@ static int __init visws_get_smp_config(unsigned int early) return 1; } -extern unsigned int __cpuinitdata maxcpus; - /* * The Visual Workstation is Intel MP compliant in the hardware * sense, but it doesn't have a BIOS(-configuration table). @@ -244,8 +242,8 @@ static int __init visws_find_smp_config(unsigned int reserve) ncpus = CO_CPU_MAX; } - if (ncpus > maxcpus) - ncpus = maxcpus; + if (ncpus > setup_max_cpus) + ncpus = setup_max_cpus; #ifdef CONFIG_X86_LOCAL_APIC smp_found_config = 1; -- cgit v1.2.3 From 858f774733b72609acb28104475f131abb912c08 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Thu, 14 Aug 2008 02:16:29 -0700 Subject: x86: don't call e820_regiter_active_regions if out of range on node so we don't get warning on 32bit system with 64g RAM or more Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- arch/x86/mm/srat_32.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/mm/srat_32.c b/arch/x86/mm/srat_32.c index 1eb2973a301..16ae70fc57e 100644 --- a/arch/x86/mm/srat_32.c +++ b/arch/x86/mm/srat_32.c @@ -178,7 +178,7 @@ void acpi_numa_arch_fixup(void) * start of the node, and that the current "end" address is after * the previous one. */ -static __init void node_read_chunk(int nid, struct node_memory_chunk_s *memory_chunk) +static __init int node_read_chunk(int nid, struct node_memory_chunk_s *memory_chunk) { /* * Only add present memory as told by the e820. @@ -189,10 +189,10 @@ static __init void node_read_chunk(int nid, struct node_memory_chunk_s *memory_c if (memory_chunk->start_pfn >= max_pfn) { printk(KERN_INFO "Ignoring SRAT pfns: %08lx - %08lx\n", memory_chunk->start_pfn, memory_chunk->end_pfn); - return; + return -1; } if (memory_chunk->nid != nid) - return; + return -1; if (!node_has_online_mem(nid)) node_start_pfn[nid] = memory_chunk->start_pfn; @@ -202,6 +202,8 @@ static __init void node_read_chunk(int nid, struct node_memory_chunk_s *memory_c if (node_end_pfn[nid] < memory_chunk->end_pfn) node_end_pfn[nid] = memory_chunk->end_pfn; + + return 0; } int __init get_memcfg_from_srat(void) @@ -259,7 +261,9 @@ int __init get_memcfg_from_srat(void) printk(KERN_DEBUG "chunk %d nid %d start_pfn %08lx end_pfn %08lx\n", j, chunk->nid, chunk->start_pfn, chunk->end_pfn); - node_read_chunk(chunk->nid, chunk); + if (node_read_chunk(chunk->nid, chunk)) + continue; + e820_register_active_regions(chunk->nid, chunk->start_pfn, min(chunk->end_pfn, max_pfn)); } -- cgit v1.2.3 From a58f03b07539f6575adaa011712fa139c9343742 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Thu, 14 Aug 2008 02:16:30 -0700 Subject: x86: check bigsmp in smp_sanity_check instead of cpu_up clear bits for cpu nr > 8. This allows us to boot the full range of possible CPUs that the supported APIC model will allow. Previously we'd hang or boot up with less than 8 CPUs. Signed-off-by: Yinghai Lu Tested-by: Jeff Chua Signed-off-by: Ingo Molnar --- arch/x86/kernel/smpboot.c | 38 ++++++++++++++++++++++++++++---------- 1 file changed, 28 insertions(+), 10 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c index e25287e4a85..a8fb8a980fa 100644 --- a/arch/x86/kernel/smpboot.c +++ b/arch/x86/kernel/smpboot.c @@ -994,17 +994,7 @@ int __cpuinit native_cpu_up(unsigned int cpu) flush_tlb_all(); low_mappings = 1; -#ifdef CONFIG_X86_PC - if (def_to_bigsmp && apicid > 8) { - printk(KERN_WARNING - "More than 8 CPUs detected - skipping them.\n" - "Use CONFIG_X86_GENERICARCH and CONFIG_X86_BIGSMP.\n"); - err = -1; - } else - err = do_boot_cpu(apicid, cpu); -#else err = do_boot_cpu(apicid, cpu); -#endif zap_low_mappings(); low_mappings = 0; @@ -1058,6 +1048,34 @@ static __init void disable_smp(void) static int __init smp_sanity_check(unsigned max_cpus) { preempt_disable(); + +#if defined(CONFIG_X86_PC) && defined(CONFIG_X86_32) + if (def_to_bigsmp && nr_cpu_ids > 8) { + unsigned int cpu; + unsigned nr; + + printk(KERN_WARNING + "More than 8 CPUs detected - skipping them.\n" + "Use CONFIG_X86_GENERICARCH and CONFIG_X86_BIGSMP.\n"); + + nr = 0; + for_each_present_cpu(cpu) { + if (nr >= 8) + cpu_clear(cpu, cpu_present_map); + nr++; + } + + nr = 0; + for_each_possible_cpu(cpu) { + if (nr >= 8) + cpu_clear(cpu, cpu_possible_map); + nr++; + } + + nr_cpu_ids = 8; + } +#endif + if (!physid_isset(hard_smp_processor_id(), phys_cpu_present_map)) { printk(KERN_WARNING "weird, boot CPU (#%d) not listed" "by the BIOS.\n", hard_smp_processor_id()); -- cgit v1.2.3 From a6825f1c1fa83b1e92b6715ee5771a4d6524d3b9 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Thu, 14 Aug 2008 12:17:06 +0200 Subject: x86: hpet: workaround SB700 BIOS AMD SB700 based systems with spread spectrum enabled use a SMM based HPET emulation to provide proper frequency setting. The SMM code is initialized with the first HPET register access and takes some time to complete. During this time the config register reads 0xffffffff. We check for max. 1000 loops whether the config register reads a non 0xffffffff value to make sure that HPET is up and running before we go further. A counting loop is safe, as the HPET access takes thousands of CPU cycles. On non SB700 based machines this check is only done once and has no side effects. Based on a quirk patch from: crane cai Signed-off-by: Thomas Gleixner --- arch/x86/kernel/hpet.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) (limited to 'arch/x86') diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c index ad2b15a1334..59fd3b6b130 100644 --- a/arch/x86/kernel/hpet.c +++ b/arch/x86/kernel/hpet.c @@ -359,6 +359,7 @@ static int hpet_clocksource_register(void) int __init hpet_enable(void) { unsigned long id; + int i; if (!is_hpet_capable()) return 0; @@ -369,6 +370,29 @@ int __init hpet_enable(void) * Read the period and check for a sane value: */ hpet_period = hpet_readl(HPET_PERIOD); + + /* + * AMD SB700 based systems with spread spectrum enabled use a + * SMM based HPET emulation to provide proper frequency + * setting. The SMM code is initialized with the first HPET + * register access and takes some time to complete. During + * this time the config register reads 0xffffffff. We check + * for max. 1000 loops whether the config register reads a non + * 0xffffffff value to make sure that HPET is up and running + * before we go further. A counting loop is safe, as the HPET + * access takes thousands of CPU cycles. On non SB700 based + * machines this check is only done once and has no side + * effects. + */ + for (i = 0; hpet_readl(HPET_CFG) == 0xFFFFFFFF; i++) { + if (i == 1000) { + printk(KERN_WARNING + "HPET config register value = 0xFFFFFFFF. " + "Disabling HPET\n"); + goto out_nohpet; + } + } + if (hpet_period < HPET_MIN_PERIOD || hpet_period > HPET_MAX_PERIOD) goto out_nohpet; -- cgit v1.2.3 From 967060d00d7ab8e992963a966cd3d18156c02d55 Mon Sep 17 00:00:00 2001 From: "Darrick J. Wong" Date: Thu, 14 Aug 2008 15:43:33 -0700 Subject: x86, msr: fix NULL pointer deref due to msr_open on nonexistent CPUs msr_open tests for someone trying to open a device for a nonexistent CPU. However, the function always returns 0, not ret like it should, hence userspace can BUG the kernel trivially. This bug was introduced by the cdev lock_kernel pushdown patch last May. The BUG can be reproduced with these commands: # mknod fubar c 202 8 <-- pick a number less than NR_CPUS that is not the number of an online CPU # cat fubar Signed-off-by: Darrick J. Wong Signed-off-by: Ingo Molnar --- arch/x86/kernel/msr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/msr.c b/arch/x86/kernel/msr.c index 9fd80955244..e4393808688 100644 --- a/arch/x86/kernel/msr.c +++ b/arch/x86/kernel/msr.c @@ -131,7 +131,7 @@ static int msr_open(struct inode *inode, struct file *file) ret = -EIO; /* MSR not supported */ out: unlock_kernel(); - return 0; + return ret; } /* -- cgit v1.2.3 From ef31023743e66de7184e9aad432291c842a6384b Mon Sep 17 00:00:00 2001 From: Dave Jones Date: Thu, 14 Aug 2008 15:07:03 -0400 Subject: x86: silence mmconfig printk There's so much broken mmconfig hardware/bios'es out there, that classing this as an error seems a little extreme. Lower its priority to KERN_INFO so that it isn't so noisy when booting with 'quiet' Signed-off-by: Dave Jones Signed-off-by: Ingo Molnar --- arch/x86/pci/mmconfig-shared.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/x86') diff --git a/arch/x86/pci/mmconfig-shared.c b/arch/x86/pci/mmconfig-shared.c index 23faaa890ff..2bd5c53f638 100644 --- a/arch/x86/pci/mmconfig-shared.c +++ b/arch/x86/pci/mmconfig-shared.c @@ -365,7 +365,7 @@ static void __init pci_mmcfg_reject_broken(int early) return; reject: - printk(KERN_ERR "PCI: Not using MMCONFIG.\n"); + printk(KERN_INFO "PCI: Not using MMCONFIG.\n"); pci_mmcfg_arch_free(); kfree(pci_mmcfg_config); pci_mmcfg_config = NULL; -- cgit v1.2.3 From 519c31bacf78a969efa8d2e55ed8862848f28590 Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Thu, 14 Aug 2008 19:55:15 +0200 Subject: x86, AMD IOMMU: use status bit instead of memory write-back for completion wait Signed-off-by: Joerg Roedel Signed-off-by: Ingo Molnar --- arch/x86/kernel/amd_iommu.c | 17 ++++++++++------- 1 file changed, 10 insertions(+), 7 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c index 22d7d050905..028e945c68a 100644 --- a/arch/x86/kernel/amd_iommu.c +++ b/arch/x86/kernel/amd_iommu.c @@ -101,16 +101,13 @@ static int iommu_queue_command(struct amd_iommu *iommu, struct iommu_cmd *cmd) */ static int iommu_completion_wait(struct amd_iommu *iommu) { - int ret; + int ret, ready = 0; + unsigned status = 0; struct iommu_cmd cmd; - volatile u64 ready = 0; - unsigned long ready_phys = virt_to_phys(&ready); unsigned long i = 0; memset(&cmd, 0, sizeof(cmd)); - cmd.data[0] = LOW_U32(ready_phys) | CMD_COMPL_WAIT_STORE_MASK; - cmd.data[1] = upper_32_bits(ready_phys); - cmd.data[2] = 1; /* value written to 'ready' */ + cmd.data[0] = CMD_COMPL_WAIT_INT_MASK; CMD_SET_TYPE(&cmd, CMD_COMPL_WAIT); iommu->need_sync = 0; @@ -122,9 +119,15 @@ static int iommu_completion_wait(struct amd_iommu *iommu) while (!ready && (i < EXIT_LOOP_COUNT)) { ++i; - cpu_relax(); + /* wait for the bit to become one */ + status = readl(iommu->mmio_base + MMIO_STATUS_OFFSET); + ready = status & MMIO_STATUS_COM_WAIT_INT_MASK; } + /* set bit back to zero */ + status &= ~MMIO_STATUS_COM_WAIT_INT_MASK; + writel(status, iommu->mmio_base + MMIO_STATUS_OFFSET); + if (unlikely((i == EXIT_LOOP_COUNT) && printk_ratelimit())) printk(KERN_WARNING "AMD IOMMU: Completion wait loop failed\n"); -- cgit v1.2.3 From 9f5f5fb35d2934fe7dc0cb019854a030efd10cd7 Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Thu, 14 Aug 2008 19:55:16 +0200 Subject: x86, AMD IOMMU: initialize device table properly This patch adds device table initializations which forbids memory accesses for devices per default and disables all page faults. Signed-off-by: Joerg Roedel Signed-off-by: Ingo Molnar --- arch/x86/kernel/amd_iommu_init.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) (limited to 'arch/x86') diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c index d9a9da597e7..ceba3381153 100644 --- a/arch/x86/kernel/amd_iommu_init.c +++ b/arch/x86/kernel/amd_iommu_init.c @@ -800,6 +800,21 @@ static int __init init_memory_definitions(struct acpi_table_header *table) return 0; } +/* + * Init the device table to not allow DMA access for devices and + * suppress all page faults + */ +static void init_device_table(void) +{ + u16 devid; + + for (devid = 0; devid <= amd_iommu_last_bdf; ++devid) { + set_dev_entry_bit(devid, DEV_ENTRY_VALID); + set_dev_entry_bit(devid, DEV_ENTRY_TRANSLATION); + set_dev_entry_bit(devid, DEV_ENTRY_NO_PAGE_FAULT); + } +} + /* * This function finally enables all IOMMUs found in the system after * they have been initialized @@ -931,6 +946,9 @@ int __init amd_iommu_init(void) if (amd_iommu_pd_alloc_bitmap == NULL) goto free; + /* init the device table */ + init_device_table(); + /* * let all alias entries point to itself */ -- cgit v1.2.3 From 8a456695c5020d6317f9c7af190999e9414b0d3e Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Thu, 14 Aug 2008 19:55:17 +0200 Subject: x86m AMD IOMMU: cleanup: replace LOW_U32 macro with generic lower_32_bits Signed-off-by: Joerg Roedel Signed-off-by: Ingo Molnar --- arch/x86/kernel/amd_iommu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c index 028e945c68a..de39e1f2ede 100644 --- a/arch/x86/kernel/amd_iommu.c +++ b/arch/x86/kernel/amd_iommu.c @@ -164,7 +164,7 @@ static int iommu_queue_inv_iommu_pages(struct amd_iommu *iommu, address &= PAGE_MASK; CMD_SET_TYPE(&cmd, CMD_INV_IOMMU_PAGES); cmd.data[1] |= domid; - cmd.data[2] = LOW_U32(address); + cmd.data[2] = lower_32_bits(address); cmd.data[3] = upper_32_bits(address); if (s) /* size bit - we flush more than one 4kb page */ cmd.data[2] |= CMD_INV_IOMMU_PAGES_SIZE_MASK; -- cgit v1.2.3 From 129d6aba444d1e99d4cbfb9866a4652912426b65 Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Thu, 14 Aug 2008 19:55:18 +0200 Subject: x86, AMD IOMMU: initialize dma_ops after sysfs registration If sysfs registration fails all memory used by IOMMU is freed. This happens after dma_ops initialization and the functions will access the freed memory then. Fix this by initializing dma_ops after the sysfs registration. Signed-off-by: Joerg Roedel Signed-off-by: Ingo Molnar --- arch/x86/kernel/amd_iommu_init.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c index ceba3381153..a69cc0f5204 100644 --- a/arch/x86/kernel/amd_iommu_init.c +++ b/arch/x86/kernel/amd_iommu_init.c @@ -972,15 +972,15 @@ int __init amd_iommu_init(void) if (acpi_table_parse("IVRS", init_memory_definitions) != 0) goto free; - ret = amd_iommu_init_dma_ops(); + ret = sysdev_class_register(&amd_iommu_sysdev_class); if (ret) goto free; - ret = sysdev_class_register(&amd_iommu_sysdev_class); + ret = sysdev_register(&device_amd_iommu); if (ret) goto free; - ret = sysdev_register(&device_amd_iommu); + ret = amd_iommu_init_dma_ops(); if (ret) goto free; -- cgit v1.2.3 From dcc984166870150709f0c645b521a47becd9a047 Mon Sep 17 00:00:00 2001 From: Aristeu Rozanski Date: Thu, 14 Aug 2008 16:32:15 -0400 Subject: x86, perfctr: don't use CCCR_OVF_PMI1 on Pentium 4Ds Currently, setup_p4_watchdog() use CCCR_OVF_PMI1 to enable the counter overflow interrupts to the second logical core. But this bit doesn't work on Pentium 4 Ds (model 4, stepping 4) and this patch avoids its use on these processors. Tested on 4 different machines that have this specific model with success. Signed-off-by: Aristeu Rozanski Cc: jvillalovos@redhat.com Signed-off-by: Ingo Molnar --- arch/x86/kernel/cpu/perfctr-watchdog.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/cpu/perfctr-watchdog.c b/arch/x86/kernel/cpu/perfctr-watchdog.c index de7439f82b9..05cc22dbd4f 100644 --- a/arch/x86/kernel/cpu/perfctr-watchdog.c +++ b/arch/x86/kernel/cpu/perfctr-watchdog.c @@ -478,7 +478,13 @@ static int setup_p4_watchdog(unsigned nmi_hz) perfctr_msr = MSR_P4_IQ_PERFCTR1; evntsel_msr = MSR_P4_CRU_ESCR0; cccr_msr = MSR_P4_IQ_CCCR1; - cccr_val = P4_CCCR_OVF_PMI1 | P4_CCCR_ESCR_SELECT(4); + + /* Pentium 4 D processors don't support P4_CCCR_OVF_PMI1 */ + if (boot_cpu_data.x86_model == 4 && boot_cpu_data.x86_mask == 4) + cccr_val = P4_CCCR_OVF_PMI0; + else + cccr_val = P4_CCCR_OVF_PMI1; + cccr_val |= P4_CCCR_ESCR_SELECT(4); } evntsel = P4_ESCR_EVENT_SELECT(0x3F) -- cgit v1.2.3 From 394a15051c33f2b18e72f42283b36a9388fa414b Mon Sep 17 00:00:00 2001 From: Mark Langsdorf Date: Thu, 14 Aug 2008 09:11:26 -0500 Subject: x86: invalidate caches before going into suspend MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit When a CPU core is shut down, all of its caches need to be flushed to prevent stale data from causing errors if the core is resumed. Current Linux suspend code performs an assignment after the flush, which can add dirty data back to the cache.  On some AMD platforms, additional speculative reads have caused crashes on resume because of this dirty data. Relocate the cache flush to be the very last thing done before halting.  Tie into an assembly line so the compile will not reorder it.  Add some documentation explaining what is going on and why we're doing this. Signed-off-by: Mark Langsdorf Acked-by: Mark Borden Acked-by: Michael Hohmuth Signed-off-by: Ingo Molnar --- arch/x86/kernel/process_32.c | 5 ++--- arch/x86/kernel/process_64.c | 5 ++--- 2 files changed, 4 insertions(+), 6 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c index 53bc653ed5c..3b7a1ddcc0b 100644 --- a/arch/x86/kernel/process_32.c +++ b/arch/x86/kernel/process_32.c @@ -95,7 +95,6 @@ static inline void play_dead(void) { /* This must be done before dead CPU ack */ cpu_exit_clear(); - wbinvd(); mb(); /* Ack it */ __get_cpu_var(cpu_state) = CPU_DEAD; @@ -104,8 +103,8 @@ static inline void play_dead(void) * With physical CPU hotplug, we should halt the cpu */ local_irq_disable(); - while (1) - halt(); + /* mask all interrupts, flush any and all caches, and halt */ + wbinvd_halt(); } #else static inline void play_dead(void) diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c index 3fb62a7d9a1..71553b664e2 100644 --- a/arch/x86/kernel/process_64.c +++ b/arch/x86/kernel/process_64.c @@ -93,14 +93,13 @@ DECLARE_PER_CPU(int, cpu_state); static inline void play_dead(void) { idle_task_exit(); - wbinvd(); mb(); /* Ack it */ __get_cpu_var(cpu_state) = CPU_DEAD; local_irq_disable(); - while (1) - halt(); + /* mask all interrupts, flush any and all caches, and halt */ + wbinvd_halt(); } #else static inline void play_dead(void) -- cgit v1.2.3 From 04b69447f79eade34e92f3117a39e8fa6ecb519b Mon Sep 17 00:00:00 2001 From: Pavel Machek Date: Thu, 14 Aug 2008 17:16:50 +0200 Subject: arch/x86/Kconfig: clean up, experimental adjustement Adjust experimental tags in Kconfig, update config to notice that i386/x86_64 is now single architecture. Signed-off-by: Pavel Machek Signed-off-by: Ingo Molnar --- arch/x86/Kconfig | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index ac2fb0641a0..68d91c8233f 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -951,9 +951,9 @@ config NUMA local memory controller of the CPU and add some more NUMA awareness to the kernel. - For i386 this is currently highly experimental and should be only + For 32-bit this is currently highly experimental and should be only used for kernel development. It might also cause boot failures. - For x86_64 this is recommended on all multiprocessor Opteron systems. + For 64-bit this is recommended on all multiprocessor Opteron systems. If the system is EM64T, you should say N unless your system is EM64T NUMA. @@ -1263,7 +1263,7 @@ config KEXEC strongly in flux, so no good recommendation can be made. config CRASH_DUMP - bool "kernel crash dumps (EXPERIMENTAL)" + bool "kernel crash dumps" depends on X86_64 || (X86_32 && HIGHMEM) help Generate crash dump after being started by kexec. -- cgit v1.2.3 From a06de63000b95e1ed1c6373a72376876c952608e Mon Sep 17 00:00:00 2001 From: Hugh Dickins Date: Fri, 15 Aug 2008 13:58:32 +0100 Subject: x86: fix /proc/meminfo DirectMap Do we actually want these DirectMap lines in the x86 /proc/meminfo? I can see they're interesting to CPA developers and TLB optimizers, but they don't fit its usual "where has all my memory gone?" usage. If they are to stay, here are some fixes. 1. On x86_32 without PAE, they're not 2M but 4M pages: no need to mess with the internal enum, but show the right name to users. 2. Many machines can never show anything but 0 for DirectMap1G, so suppress that line unless direct_gbpages are really enabled. 3. The unit in /proc/meminfo is kB not number of pages: HugePages messed that up, but they're an example to regret not to follow. 4. Once we use kB, it's easy to see that 1GB has gone missing (which explains why CONFIG_CPA_DEBUG=y soon wraps DirectMap2M negative): because head_64.S's level2_ident_pgt entries were not counted. My fix is not ideal, but works for more and for less than 1G, and avoids interfering with early bootup pagetable contortions. Signed-off-by: Hugh Dickins Cc: Andi Kleen Signed-off-by: Ingo Molnar --- arch/x86/mm/init_64.c | 6 +++++- arch/x86/mm/pageattr.c | 18 ++++++++++++------ 2 files changed, 17 insertions(+), 7 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index 129618ca0ea..b3e6c3075ac 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -60,7 +60,7 @@ static unsigned long dma_reserve __initdata; DEFINE_PER_CPU(struct mmu_gather, mmu_gathers); -int direct_gbpages __meminitdata +int direct_gbpages #ifdef CONFIG_DIRECT_GBPAGES = 1 #endif @@ -314,6 +314,7 @@ phys_pmd_init(pmd_t *pmd_page, unsigned long address, unsigned long end, { unsigned long pages = 0; unsigned long last_map_addr = end; + unsigned long start = address; int i = pmd_index(address); @@ -334,6 +335,9 @@ phys_pmd_init(pmd_t *pmd_page, unsigned long address, unsigned long end, if (!pmd_large(*pmd)) last_map_addr = phys_pte_update(pmd, address, end); + /* Count entries we're using from level2_ident_pgt */ + if (start == 0) + pages++; continue; } diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c index ba24537d69d..f5f5154ea11 100644 --- a/arch/x86/mm/pageattr.c +++ b/arch/x86/mm/pageattr.c @@ -55,13 +55,19 @@ static void split_page_count(int level) int arch_report_meminfo(char *page) { - int n = sprintf(page, "DirectMap4k: %8lu\n" - "DirectMap2M: %8lu\n", - direct_pages_count[PG_LEVEL_4K], - direct_pages_count[PG_LEVEL_2M]); + int n = sprintf(page, "DirectMap4k: %8lu kB\n", + direct_pages_count[PG_LEVEL_4K] << 2); +#if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE) + n += sprintf(page + n, "DirectMap2M: %8lu kB\n", + direct_pages_count[PG_LEVEL_2M] << 11); +#else + n += sprintf(page + n, "DirectMap4M: %8lu kB\n", + direct_pages_count[PG_LEVEL_2M] << 12); +#endif #ifdef CONFIG_X86_64 - n += sprintf(page + n, "DirectMap1G: %8lu\n", - direct_pages_count[PG_LEVEL_1G]); + if (direct_gbpages) + n += sprintf(page + n, "DirectMap1G: %8lu kB\n", + direct_pages_count[PG_LEVEL_1G] << 20); #endif return n; } -- cgit v1.2.3 From 15636668449d4135ac77a79715ba430a81aed16d Mon Sep 17 00:00:00 2001 From: Aristeu Rozanski Date: Fri, 15 Aug 2008 08:36:14 -0400 Subject: x86, NMI: fix watchdog failure message > it just won't work at boot time - the second logic unit will be stuck: > > Booting processor 1/2 APIC 0x1 > Initializing CPU#1 > Calibrating delay using timer specific routine.. 5586.12 BogoMIPS (lpj=2793063) > CPU: Trace cache: 12K uops, L1 D cache: 16K > CPU: L2 cache: 1024K > CPU: Physical Processor ID: 0 > CPU: Processor Core ID: 1 > CPU1: Thermal monitoring enabled (TM1) > Intel(R) Pentium(R) D CPU 2.80GHz stepping 04 > Brought up 2 CPUs > testing NMI watchdog ... <4>WARNING: CPU#1: NMI appears to be stuck (0->0)! while at it... - fix that newline Signed-off-by: Aristeu Rozanski Cc: jvillalo@redhat.com Signed-off-by: Ingo Molnar --- arch/x86/kernel/nmi.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'arch/x86') diff --git a/arch/x86/kernel/nmi.c b/arch/x86/kernel/nmi.c index ac6d51222e7..919473ad4a2 100644 --- a/arch/x86/kernel/nmi.c +++ b/arch/x86/kernel/nmi.c @@ -142,11 +142,15 @@ int __init check_nmi_watchdog(void) if (!per_cpu(wd_enabled, cpu)) continue; if (get_nmi_count(cpu) - prev_nmi_count[cpu] <= 5) { + printk("\n"); printk(KERN_WARNING "WARNING: CPU#%d: NMI " "appears to be stuck (%d->%d)!\n", cpu, prev_nmi_count[cpu], get_nmi_count(cpu)); + printk(KERN_WARNING "Please report this to " + "linux-kernel@vger.kernel.org and attach " + "the output of 'dmesg' command.\n"); per_cpu(wd_enabled, cpu) = 0; atomic_dec(&nmi_active); } -- cgit v1.2.3 From 8bb851900f5d0a79d3fddac808cc670d9894ef67 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Fri, 15 Aug 2008 15:34:32 +0200 Subject: x86, nmi: clean UP NMI watchdog failure message clean up the failure message - and redirect people to bugzilla instead of lkml. Signed-off-by: Ingo Molnar --- arch/x86/kernel/nmi.c | 32 +++++++++++++++++++------------- 1 file changed, 19 insertions(+), 13 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/nmi.c b/arch/x86/kernel/nmi.c index 919473ad4a2..abb78a2cc4a 100644 --- a/arch/x86/kernel/nmi.c +++ b/arch/x86/kernel/nmi.c @@ -114,6 +114,23 @@ static __init void nmi_cpu_busy(void *data) } #endif +static void report_broken_nmi(int cpu, int *prev_nmi_count) +{ + printk(KERN_CONT "\n"); + + printk(KERN_WARNING + "WARNING: CPU#%d: NMI appears to be stuck (%d->%d)!\n", + cpu, prev_nmi_count[cpu], get_nmi_count(cpu)); + + printk(KERN_WARNING + "Please report this to bugzilla.kernel.org,\n"); + printk(KERN_WARNING + "and attach the output of the 'dmesg' command.\n"); + + per_cpu(wd_enabled, cpu) = 0; + atomic_dec(&nmi_active); +} + int __init check_nmi_watchdog(void) { unsigned int *prev_nmi_count; @@ -141,19 +158,8 @@ int __init check_nmi_watchdog(void) for_each_online_cpu(cpu) { if (!per_cpu(wd_enabled, cpu)) continue; - if (get_nmi_count(cpu) - prev_nmi_count[cpu] <= 5) { - printk("\n"); - printk(KERN_WARNING "WARNING: CPU#%d: NMI " - "appears to be stuck (%d->%d)!\n", - cpu, - prev_nmi_count[cpu], - get_nmi_count(cpu)); - printk(KERN_WARNING "Please report this to " - "linux-kernel@vger.kernel.org and attach " - "the output of 'dmesg' command.\n"); - per_cpu(wd_enabled, cpu) = 0; - atomic_dec(&nmi_active); - } + if (get_nmi_count(cpu) - prev_nmi_count[cpu] <= 5) + report_broken_nmi(cpu, prev_nmi_count); } endflag = 1; if (!atomic_read(&nmi_active)) { -- cgit v1.2.3 From 9744f5a32853642f8ed0749a1c9ed8cf9c9c9dc4 Mon Sep 17 00:00:00 2001 From: Marcin Slusarz Date: Sun, 3 Aug 2008 19:25:48 +0200 Subject: x86, acpi: cleanup, temp_stack is used only when CONFIG_SMP is set fix: arch/x86/kernel/acpi/sleep.c:24: warning: 'temp_stack' defined but not used [ Sven Wegener : fix build bug ] Signed-off-by: Marcin Slusarz Acked-by: Pavel Machek Signed-off-by: Ingo Molnar --- arch/x86/kernel/acpi/sleep.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/acpi/sleep.c b/arch/x86/kernel/acpi/sleep.c index fa2161d5003..81e5ab6542d 100644 --- a/arch/x86/kernel/acpi/sleep.c +++ b/arch/x86/kernel/acpi/sleep.c @@ -20,7 +20,7 @@ unsigned long acpi_realmode_flags; /* address in low memory of the wakeup routine. */ static unsigned long acpi_realmode; -#ifdef CONFIG_64BIT +#if defined(CONFIG_SMP) && defined(CONFIG_64BIT) static char temp_stack[10240]; #endif -- cgit v1.2.3 From 0d5cdc97e242a5589e5dca23277675f4b4482490 Mon Sep 17 00:00:00 2001 From: Jens Rottmann Date: Mon, 4 Aug 2008 14:40:16 +0200 Subject: x86, geode-mfgpt: check IRQ before using MFGPT as clocksource Adds a simple IRQ autodetection to the AMD Geode MFGPT driver, and more importantly, adds some checks, if IRQs can actually be received on the chosen line. This fixes cases where MFGPT is selected as clocksource though not producing any ticks, so the kernel simply starves during boot. Signed-off-by: Jens Rottmann Cc: Andres Salomon Cc: linux-geode@bombadil.infradead.org Cc: Jordan Crouse Signed-off-by: Ingo Molnar --- arch/x86/kernel/mfgpt_32.c | 52 +++++++++++++++++++++++++++++++++------------- 1 file changed, 37 insertions(+), 15 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/mfgpt_32.c b/arch/x86/kernel/mfgpt_32.c index 07c0f828f48..3b599518c32 100644 --- a/arch/x86/kernel/mfgpt_32.c +++ b/arch/x86/kernel/mfgpt_32.c @@ -33,6 +33,8 @@ #include #include +#define MFGPT_DEFAULT_IRQ 7 + static struct mfgpt_timer_t { unsigned int avail:1; } mfgpt_timers[MFGPT_MAX_TIMERS]; @@ -157,29 +159,48 @@ int geode_mfgpt_toggle_event(int timer, int cmp, int event, int enable) } EXPORT_SYMBOL_GPL(geode_mfgpt_toggle_event); -int geode_mfgpt_set_irq(int timer, int cmp, int irq, int enable) +int geode_mfgpt_set_irq(int timer, int cmp, int *irq, int enable) { - u32 val, dummy; - int offset; + u32 zsel, lpc, dummy; + int shift; if (timer < 0 || timer >= MFGPT_MAX_TIMERS) return -EIO; - if (geode_mfgpt_toggle_event(timer, cmp, MFGPT_EVENT_IRQ, enable)) + /* + * Unfortunately, MFGPTs come in pairs sharing their IRQ lines. If VSA + * is using the same CMP of the timer's Siamese twin, the IRQ is set to + * 2, and we mustn't use nor change it. + * XXX: Likewise, 2 Linux drivers might clash if the 2nd overwrites the + * IRQ of the 1st. This can only happen if forcing an IRQ, calling this + * with *irq==0 is safe. Currently there _are_ no 2 drivers. + */ + rdmsr(MSR_PIC_ZSEL_LOW, zsel, dummy); + shift = ((cmp == MFGPT_CMP1 ? 0 : 4) + timer % 4) * 4; + if (((zsel >> shift) & 0xF) == 2) return -EIO; - rdmsr(MSR_PIC_ZSEL_LOW, val, dummy); + /* Choose IRQ: if none supplied, keep IRQ already set or use default */ + if (!*irq) + *irq = (zsel >> shift) & 0xF; + if (!*irq) + *irq = MFGPT_DEFAULT_IRQ; - offset = (timer % 4) * 4; - - val &= ~((0xF << offset) | (0xF << (offset + 16))); + /* Can't use IRQ if it's 0 (=disabled), 2, or routed to LPC */ + if (*irq < 1 || *irq == 2 || *irq > 15) + return -EIO; + rdmsr(MSR_PIC_IRQM_LPC, lpc, dummy); + if (lpc & (1 << *irq)) + return -EIO; + /* All chosen and checked - go for it */ + if (geode_mfgpt_toggle_event(timer, cmp, MFGPT_EVENT_IRQ, enable)) + return -EIO; if (enable) { - val |= (irq & 0x0F) << (offset); - val |= (irq & 0x0F) << (offset + 16); + zsel = (zsel & ~(0xF << shift)) | (*irq << shift); + wrmsr(MSR_PIC_ZSEL_LOW, zsel, dummy); } - wrmsr(MSR_PIC_ZSEL_LOW, val, dummy); return 0; } @@ -242,7 +263,7 @@ EXPORT_SYMBOL_GPL(geode_mfgpt_alloc_timer); static unsigned int mfgpt_tick_mode = CLOCK_EVT_MODE_SHUTDOWN; static u16 mfgpt_event_clock; -static int irq = 7; +static int irq; static int __init mfgpt_setup(char *str) { get_option(&str, &irq); @@ -346,7 +367,7 @@ int __init mfgpt_timer_setup(void) mfgpt_event_clock = timer; /* Set up the IRQ on the MFGPT side */ - if (geode_mfgpt_setup_irq(mfgpt_event_clock, MFGPT_CMP2, irq)) { + if (geode_mfgpt_setup_irq(mfgpt_event_clock, MFGPT_CMP2, &irq)) { printk(KERN_ERR "mfgpt-timer: Could not set up IRQ %d\n", irq); return -EIO; } @@ -374,13 +395,14 @@ int __init mfgpt_timer_setup(void) &mfgpt_clockevent); printk(KERN_INFO - "mfgpt-timer: registering the MFGPT timer as a clock event.\n"); + "mfgpt-timer: Registering MFGPT timer %d as a clock event, using IRQ %d\n", + timer, irq); clockevents_register_device(&mfgpt_clockevent); return 0; err: - geode_mfgpt_release_irq(mfgpt_event_clock, MFGPT_CMP2, irq); + geode_mfgpt_release_irq(mfgpt_event_clock, MFGPT_CMP2, &irq); printk(KERN_ERR "mfgpt-timer: Unable to set up the MFGPT clock source\n"); return -EIO; -- cgit v1.2.3 From 66d4bdf22b8652cda215e2653c8bbec7a767ed57 Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Thu, 31 Jul 2008 16:48:31 +0100 Subject: x86-64: fix overlap of modules and fixmap areas Plus add a build time check so this doesn't go unnoticed again. Signed-off-by: Jan Beulich Signed-off-by: Ingo Molnar --- arch/x86/kernel/head64.c | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/x86') diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c index 1b318e903bf..9bfc4d72fb2 100644 --- a/arch/x86/kernel/head64.c +++ b/arch/x86/kernel/head64.c @@ -88,6 +88,7 @@ void __init x86_64_start_kernel(char * real_mode_data) BUILD_BUG_ON(!(MODULES_VADDR > __START_KERNEL)); BUILD_BUG_ON(!(((MODULES_END - 1) & PGDIR_MASK) == (__START_KERNEL & PGDIR_MASK))); + BUILD_BUG_ON(__fix_to_virt(__end_of_fixed_addresses) <= MODULES_END); /* clear bss before set_intr_gate with early_idt_handler */ clear_bss(); -- cgit v1.2.3 From 163f6876f5c3ff8215e900b93779e960a56b3694 Mon Sep 17 00:00:00 2001 From: Huang Ying Date: Fri, 15 Aug 2008 00:40:22 -0700 Subject: kexec jump: rename KEXEC_CONTROL_CODE_SIZE to KEXEC_CONTROL_PAGE_SIZE Rename KEXEC_CONTROL_CODE_SIZE to KEXEC_CONTROL_PAGE_SIZE, because control page is used for not only code on some platform. For example in kexec jump, it is used for data and stack too. [akpm@linux-foundation.org: unbreak powerpc and arm, finish conversion] Signed-off-by: Huang Ying Cc: Pavel Machek Cc: "Rafael J. Wysocki" Cc: "Eric W. Biederman" Cc: Vivek Goyal Cc: Ingo Molnar Cc: Russell King Cc: Benjamin Herrenschmidt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/x86/kernel/machine_kexec_32.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/machine_kexec_32.c b/arch/x86/kernel/machine_kexec_32.c index 9fe478d9840..466450167de 100644 --- a/arch/x86/kernel/machine_kexec_32.c +++ b/arch/x86/kernel/machine_kexec_32.c @@ -78,7 +78,7 @@ static void load_segments(void) /* * A architecture hook called to validate the * proposed image and prepare the control pages - * as needed. The pages for KEXEC_CONTROL_CODE_SIZE + * as needed. The pages for KEXEC_CONTROL_PAGE_SIZE * have been allocated, but the segments have yet * been copied into the kernel. * -- cgit v1.2.3 From fb45daa69d287b394eca1619b3fadff7c0215c71 Mon Sep 17 00:00:00 2001 From: Huang Ying Date: Fri, 15 Aug 2008 00:40:23 -0700 Subject: kexec jump: check code size in control page Kexec/Kexec-jump require code size in control page is less than PAGE_SIZE/2. This patch add link-time checking for this. ASSERT() of ld link script is used as the link-time checking mechanism. [akpm@linux-foundation.org: build fix] Signed-off-by: Huang Ying Cc: Pavel Machek Cc: "Rafael J. Wysocki" Cc: "Eric W. Biederman" Acked-by: Vivek Goyal Cc: Ingo Molnar Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/x86/kernel/machine_kexec_32.c | 2 +- arch/x86/kernel/relocate_kernel_32.S | 10 +++++++--- arch/x86/kernel/vmlinux_32.lds.S | 8 ++++++++ 3 files changed, 16 insertions(+), 4 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/machine_kexec_32.c b/arch/x86/kernel/machine_kexec_32.c index 466450167de..5c8e7735c89 100644 --- a/arch/x86/kernel/machine_kexec_32.c +++ b/arch/x86/kernel/machine_kexec_32.c @@ -138,7 +138,7 @@ void machine_kexec(struct kimage *image) } control_page = page_address(image->control_code_page); - memcpy(control_page, relocate_kernel, PAGE_SIZE/2); + memcpy(control_page, relocate_kernel, KEXEC_CONTROL_CODE_MAX_SIZE); relocate_kernel_ptr = control_page; page_list[PA_CONTROL_PAGE] = __pa(control_page); diff --git a/arch/x86/kernel/relocate_kernel_32.S b/arch/x86/kernel/relocate_kernel_32.S index 703310a9902..6f50664b2ba 100644 --- a/arch/x86/kernel/relocate_kernel_32.S +++ b/arch/x86/kernel/relocate_kernel_32.S @@ -20,10 +20,11 @@ #define PAGE_ATTR (_PAGE_PRESENT | _PAGE_RW | _PAGE_ACCESSED | _PAGE_DIRTY) #define PAE_PGD_ATTR (_PAGE_PRESENT) -/* control_page + PAGE_SIZE/2 ~ control_page + PAGE_SIZE * 3/4 are - * used to save some data for jumping back +/* control_page + KEXEC_CONTROL_CODE_MAX_SIZE + * ~ control_page + PAGE_SIZE are used as data storage and stack for + * jumping back */ -#define DATA(offset) (PAGE_SIZE/2+(offset)) +#define DATA(offset) (KEXEC_CONTROL_CODE_MAX_SIZE+(offset)) /* Minimal CPU state */ #define ESP DATA(0x0) @@ -376,3 +377,6 @@ swap_pages: popl %ebx popl %ebp ret + + .globl kexec_control_code_size +.set kexec_control_code_size, . - relocate_kernel diff --git a/arch/x86/kernel/vmlinux_32.lds.S b/arch/x86/kernel/vmlinux_32.lds.S index cdb2363697d..af5bdad8460 100644 --- a/arch/x86/kernel/vmlinux_32.lds.S +++ b/arch/x86/kernel/vmlinux_32.lds.S @@ -209,3 +209,11 @@ SECTIONS DWARF_DEBUG } + +#ifdef CONFIG_KEXEC +/* Link time checks */ +#include + +ASSERT(kexec_control_code_size <= KEXEC_CONTROL_CODE_MAX_SIZE, + "kexec control code size is too big") +#endif -- cgit v1.2.3 From 3122c331190e9d1622bf1c8cf6ce3b17cca67c9e Mon Sep 17 00:00:00 2001 From: Huang Ying Date: Fri, 15 Aug 2008 00:40:26 -0700 Subject: kexec jump: fix for ftrace Ftrace depends on some processor state that we destroyed during kexec and restored by restore_processor_state(). So save_processor_state() and restore_processor_state() are moved into machine_kexec() and ftrace is restored after restore_processor_state(). Signed-off-by: Huang Ying Cc: Pavel Machek Cc: "Rafael J. Wysocki" Cc: "Eric W. Biederman" Cc: Vivek Goyal Cc: Ingo Molnar Cc: Steven Rostedt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/x86/kernel/machine_kexec_32.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/machine_kexec_32.c b/arch/x86/kernel/machine_kexec_32.c index 5c8e7735c89..0732adba05c 100644 --- a/arch/x86/kernel/machine_kexec_32.c +++ b/arch/x86/kernel/machine_kexec_32.c @@ -12,6 +12,7 @@ #include #include #include +#include #include #include @@ -113,6 +114,7 @@ void machine_kexec(struct kimage *image) { unsigned long page_list[PAGES_NR]; void *control_page; + int save_ftrace_enabled; asmlinkage unsigned long (*relocate_kernel_ptr)(unsigned long indirection_page, unsigned long control_page, @@ -120,7 +122,12 @@ void machine_kexec(struct kimage *image) unsigned int has_pae, unsigned int preserve_context); - tracer_disable(); +#ifdef CONFIG_KEXEC_JUMP + if (kexec_image->preserve_context) + save_processor_state(); +#endif + + save_ftrace_enabled = __ftrace_enabled_save(); /* Interrupts aren't acceptable while we reboot */ local_irq_disable(); @@ -178,6 +185,13 @@ void machine_kexec(struct kimage *image) (unsigned long)page_list, image->start, cpu_has_pae, image->preserve_context); + +#ifdef CONFIG_KEXEC_JUMP + if (kexec_image->preserve_context) + restore_processor_state(); +#endif + + __ftrace_enabled_restore(save_ftrace_enabled); } void arch_crash_save_vmcoreinfo(void) -- cgit v1.2.3 From 89499759dc0dd300528510f465b0bf532fc79a2a Mon Sep 17 00:00:00 2001 From: Seth Heasley Date: Mon, 11 Aug 2008 17:01:50 -0700 Subject: x86/PCI: irq and pci_ids patch for Intel Ibex Peak PCHs This patch adds the Intel Ibex Peak (PCH) LPC and SMBus Controller DeviceIDs. Signed-off-by: Seth Heasley Signed-off-by: Jesse Barnes --- arch/x86/pci/irq.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch/x86') diff --git a/arch/x86/pci/irq.c b/arch/x86/pci/irq.c index fec0123b33a..8e077185e18 100644 --- a/arch/x86/pci/irq.c +++ b/arch/x86/pci/irq.c @@ -590,6 +590,8 @@ static __init int intel_router_probe(struct irq_router *r, struct pci_dev *route case PCI_DEVICE_ID_INTEL_ICH10_1: case PCI_DEVICE_ID_INTEL_ICH10_2: case PCI_DEVICE_ID_INTEL_ICH10_3: + case PCI_DEVICE_ID_INTEL_PCH_0: + case PCI_DEVICE_ID_INTEL_PCH_1: r->name = "PIIX/ICH"; r->get = pirq_piix_get; r->set = pirq_piix_set; -- cgit v1.2.3 From e213e87785559eaf3107897226817aea9291b06f Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Fri, 15 Aug 2008 18:12:47 +0200 Subject: x86: Fix ioremap off by one BUG Jean Delvare's machine triggered this BUG acpi_os_map_memory phys ffff0000 size 65535 ------------[ cut here ]------------ kernel BUG at arch/x86/mm/pat.c:233! with ACPI in the backtrace. Adding some debugging output showed that ACPI calls acpi_os_map_memory phys ffff0000 size 65535 And ioremap/PAT does this check in 32bit, so addr+size wraps and the BUG in reserve_memtype() triggers incorrectly. BUG_ON(start >= end); /* end is exclusive */ But reserve_memtype already uses u64: int reserve_memtype(u64 start, u64 end, so the 32bit truncation must happen in the caller. Presumably in ioremap when it passes this information to reserve_memtype(). This patch does this computation in 64bit. http://bugzilla.kernel.org/show_bug.cgi?id=11346 Signed-off-by: Andi Kleen --- arch/x86/mm/ioremap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/x86') diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c index 016f335bbee..6ba6f889c79 100644 --- a/arch/x86/mm/ioremap.c +++ b/arch/x86/mm/ioremap.c @@ -170,7 +170,7 @@ static void __iomem *__ioremap_caller(resource_size_t phys_addr, phys_addr &= PAGE_MASK; size = PAGE_ALIGN(last_addr+1) - phys_addr; - retval = reserve_memtype(phys_addr, phys_addr + size, + retval = reserve_memtype(phys_addr, (u64)phys_addr + size, prot_val, &new_prot_val); if (retval) { pr_debug("Warning: reserve_memtype returned %d\n", retval); -- cgit v1.2.3 From fc0091b3c86396afc8e6c273aff21671cf882ee1 Mon Sep 17 00:00:00 2001 From: Alex Nixon Date: Fri, 15 Aug 2008 17:21:14 +0100 Subject: x86: change init_gdt to update the gdt via write_gdt, rather than a direct write. By writing directly, a memory access violation can occur whilst hotplugging a CPU if the entry was previously marked read-only. Signed-off-by: Alex Nixon Cc: Jeremy Fitzhardinge Signed-off-by: Ingo Molnar --- arch/x86/kernel/smpcommon.c | 17 ++++++++++------- 1 file changed, 10 insertions(+), 7 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/smpcommon.c b/arch/x86/kernel/smpcommon.c index 99941b37eca..397e309839d 100644 --- a/arch/x86/kernel/smpcommon.c +++ b/arch/x86/kernel/smpcommon.c @@ -8,18 +8,21 @@ DEFINE_PER_CPU(unsigned long, this_cpu_off); EXPORT_PER_CPU_SYMBOL(this_cpu_off); -/* Initialize the CPU's GDT. This is either the boot CPU doing itself - (still using the master per-cpu area), or a CPU doing it for a - secondary which will soon come up. */ +/* + * Initialize the CPU's GDT. This is either the boot CPU doing itself + * (still using the master per-cpu area), or a CPU doing it for a + * secondary which will soon come up. + */ __cpuinit void init_gdt(int cpu) { - struct desc_struct *gdt = get_cpu_gdt_table(cpu); + struct desc_struct gdt; - pack_descriptor(&gdt[GDT_ENTRY_PERCPU], - __per_cpu_offset[cpu], 0xFFFFF, + pack_descriptor(&gdt, __per_cpu_offset[cpu], 0xFFFFF, 0x2 | DESCTYPE_S, 0x8); + gdt.s = 1; - gdt[GDT_ENTRY_PERCPU].s = 1; + write_gdt_entry(get_cpu_gdt_table(cpu), + GDT_ENTRY_PERCPU, &gdt, DESCTYPE_S); per_cpu(this_cpu_off, cpu) = __per_cpu_offset[cpu]; per_cpu(cpu_number, cpu) = cpu; -- cgit v1.2.3 From 8d6ea9674cb12b90c800dc572214bf06f6ce8340 Mon Sep 17 00:00:00 2001 From: Marcin Slusarz Date: Fri, 15 Aug 2008 18:32:24 +0200 Subject: x86: fix section mismatch warning - spp_getpage() WARNING: vmlinux.o(.text+0x17a3e): Section mismatch in reference from the function set_pte_vaddr_pud() to the function .init.text:spp_getpage() The function set_pte_vaddr_pud() references the function __init spp_getpage(). This is often because set_pte_vaddr_pud lacks a __init annotation or the annotation of spp_getpage is wrong. spp_getpage is called from __init (__init_extra_mapping) and non __init (set_pte_vaddr_pud) functions, so it can't be __init. Unfortunately it calls alloc_bootmem_pages which is __init, but does it only when bootmem allocator is available (after_bootmem == 0). So annotate it accordingly. Signed-off-by: Marcin Slusarz Signed-off-by: Ingo Molnar Cc: H. Peter Anvin --- arch/x86/mm/init_64.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'arch/x86') diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index b3e6c3075ac..a87ea0e4b3d 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -88,7 +88,11 @@ early_param("gbpages", parse_direct_gbpages_on); int after_bootmem; -static __init void *spp_getpage(void) +/* + * NOTE: This function is marked __ref because it calls __init function + * (alloc_bootmem_pages). It's safe to do it ONLY when after_bootmem == 0. + */ +static __ref void *spp_getpage(void) { void *ptr; -- cgit v1.2.3 From d554d9a4295dd0595d12eeccbc55d1f495b15176 Mon Sep 17 00:00:00 2001 From: Marcin Slusarz Date: Mon, 11 Aug 2008 00:07:44 +0200 Subject: x86, tsc: fix section mismatch warning WARNING: vmlinux.o(.text+0x7950): Section mismatch in reference from the function native_calibrate_tsc() to the function .init.text:tsc_read_refs() The function native_calibrate_tsc() references the function __init tsc_read_refs(). This is often because native_calibrate_tsc lacks a __init annotation or the annotation of tsc_read_refs is wrong. tsc_read_refs is called from native_calibrate_tsc which is not __init and native_calibrate_tsc cannot be marked __init Signed-off-by: Marcin Slusarz Signed-off-by: H. Peter Anvin Signed-off-by: Ingo Molnar --- arch/x86/kernel/tsc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c index 7603c055390..46af7167673 100644 --- a/arch/x86/kernel/tsc.c +++ b/arch/x86/kernel/tsc.c @@ -104,7 +104,7 @@ __setup("notsc", notsc_setup); /* * Read TSC and the reference counters. Take care of SMI disturbance */ -static u64 __init tsc_read_refs(u64 *pm, u64 *hpet) +static u64 tsc_read_refs(u64 *pm, u64 *hpet) { u64 t1, t2; int i; -- cgit v1.2.3 From 67d0c9ebdc9f5f356657146b4e862b2d745e9e78 Mon Sep 17 00:00:00 2001 From: Marcin Slusarz Date: Mon, 11 Aug 2008 00:12:37 +0200 Subject: x86: fix MP_processor_info section mismatch warning WARNING: arch/x86/kernel/built-in.o(.cpuinit.text+0x1fe7): Section mismatch in reference from the function MP_processor_info() to the variable .init.data:x86_quirks The function __cpuinit MP_processor_info() references a variable __initdata x86_quirks. If x86_quirks is only used by MP_processor_info then annotate x86_quirks with a matching annotation. MP_processor_info uses x86_quirks which is __init and is used only from smp_read_mpc and construct_default_ISA_mptable which are __init Signed-off-by: Marcin Slusarz Signed-off-by: H. Peter Anvin Signed-off-by: Ingo Molnar --- arch/x86/kernel/mpparse.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/mpparse.c b/arch/x86/kernel/mpparse.c index 678090508a6..9942fc72b63 100644 --- a/arch/x86/kernel/mpparse.c +++ b/arch/x86/kernel/mpparse.c @@ -49,7 +49,7 @@ static int __init mpf_checksum(unsigned char *mp, int len) return sum & 0xFF; } -static void __cpuinit MP_processor_info(struct mpc_config_processor *m) +static void __init MP_processor_info(struct mpc_config_processor *m) { int apicid; char *bootup_cpu = ""; -- cgit v1.2.3 From c72a5efec1193faa2ef34c0bd48d7251a70ec934 Mon Sep 17 00:00:00 2001 From: Marcin Slusarz Date: Mon, 11 Aug 2008 00:11:13 +0200 Subject: x86: mmconf: fix section mismatch warning WARNING: arch/x86/kernel/built-in.o(.cpuinit.text+0x1591): Section mismatch in reference from the function init_amd() to the function .init.text:check_enable_amd_mmconf_dmi() The function __cpuinit init_amd() references a function __init check_enable_amd_mmconf_dmi(). If check_enable_amd_mmconf_dmi is only used by init_amd then annotate check_enable_amd_mmconf_dmi with a matching annotation. check_enable_amd_mmconf_dmi is only called from init_amd which is __cpuinit Signed-off-by: Marcin Slusarz Signed-off-by: H. Peter Anvin Signed-off-by: Ingo Molnar --- arch/x86/kernel/mmconf-fam10h_64.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/mmconf-fam10h_64.c b/arch/x86/kernel/mmconf-fam10h_64.c index fdfdc550b36..efc2f361fe8 100644 --- a/arch/x86/kernel/mmconf-fam10h_64.c +++ b/arch/x86/kernel/mmconf-fam10h_64.c @@ -238,7 +238,7 @@ static struct dmi_system_id __devinitdata mmconf_dmi_table[] = { {} }; -void __init check_enable_amd_mmconf_dmi(void) +void __cpuinit check_enable_amd_mmconf_dmi(void) { dmi_check_system(mmconf_dmi_table); } -- cgit v1.2.3 From 39e00fe20aaad4326ed5e0e3221451732bc7f679 Mon Sep 17 00:00:00 2001 From: Marcin Slusarz Date: Mon, 11 Aug 2008 00:09:38 +0200 Subject: x86: mpparse.c: fix section mismatch warning WARNING: vmlinux.o(.text+0x118f7): Section mismatch in reference from the function construct_ioapic_table() to the function .init.text:MP_bus_info() The function construct_ioapic_table() references the function __init MP_bus_info(). This is often because construct_ioapic_table lacks a __init annotation or the annotation of MP_bus_info is wrong. construct_ioapic_table is called only from construct_default_ISA_mptable which is __init Signed-off-by: Marcin Slusarz Signed-off-by: H. Peter Anvin Signed-off-by: Ingo Molnar --- arch/x86/kernel/mpparse.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/mpparse.c b/arch/x86/kernel/mpparse.c index 9942fc72b63..b3fb430725c 100644 --- a/arch/x86/kernel/mpparse.c +++ b/arch/x86/kernel/mpparse.c @@ -484,7 +484,7 @@ static void __init construct_default_ioirq_mptable(int mpc_default_type) } -static void construct_ioapic_table(int mpc_default_type) +static void __init construct_ioapic_table(int mpc_default_type) { struct mpc_config_ioapic ioapic; struct mpc_config_bus bus; @@ -529,7 +529,7 @@ static void construct_ioapic_table(int mpc_default_type) construct_default_ioirq_mptable(mpc_default_type); } #else -static inline void construct_ioapic_table(int mpc_default_type) { } +static inline void __init construct_ioapic_table(int mpc_default_type) { } #endif static inline void __init construct_default_ISA_mptable(int mpc_default_type) -- cgit v1.2.3 From e532c06f2a835b5cc4f4166f467437d9b09c1d0e Mon Sep 17 00:00:00 2001 From: David Fries Date: Sun, 17 Aug 2008 23:03:40 -0500 Subject: x86: fix i486 suspend to disk CR4 oops arch/x86/power/cpu_32.c __save_processor_state calls read_cr4() only a i486 CPU doesn't have the CR4 register. Trying to read it produces an invalid opcode oops during suspend to disk. Use the safe rc4 reading op instead. If the value to be written is zero the write is skipped. arch/x86/power/hibernate_asm_32.S done: swapped the use of %eax and %ecx to use jecxz for the zero test and jump over store to %cr4. restore_image: s/%ecx/%eax/ to be consistent with done: In addition to __save_processor_state, acpi_save_state_mem, efi_call_phys_prelog, and efi_call_phys_epilog had checks added (acpi restore was in assembly and already had a check for non-zero). There were other reads and writes of CR4, but MCE and virtualization shouldn't be executed on a i486 anyway. Signed-off-by: David Fries Acked-by: H. Peter Anvin Signed-off-by: Ingo Molnar --- arch/x86/kernel/acpi/sleep.c | 2 +- arch/x86/kernel/efi_32.c | 4 ++-- arch/x86/power/cpu_32.c | 6 ++++-- arch/x86/power/hibernate_asm_32.S | 26 +++++++++++++++----------- 4 files changed, 22 insertions(+), 16 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/acpi/sleep.c b/arch/x86/kernel/acpi/sleep.c index 81e5ab6542d..426e5d91b63 100644 --- a/arch/x86/kernel/acpi/sleep.c +++ b/arch/x86/kernel/acpi/sleep.c @@ -86,7 +86,7 @@ int acpi_save_state_mem(void) #endif /* !CONFIG_64BIT */ header->pmode_cr0 = read_cr0(); - header->pmode_cr4 = read_cr4(); + header->pmode_cr4 = read_cr4_safe(); header->realmode_flags = acpi_realmode_flags; header->real_magic = 0x12345678; diff --git a/arch/x86/kernel/efi_32.c b/arch/x86/kernel/efi_32.c index 4b63c8e1f13..5cab48ee61a 100644 --- a/arch/x86/kernel/efi_32.c +++ b/arch/x86/kernel/efi_32.c @@ -53,7 +53,7 @@ void efi_call_phys_prelog(void) * directory. If I have PAE, I just need to duplicate one entry in * page directory. */ - cr4 = read_cr4(); + cr4 = read_cr4_safe(); if (cr4 & X86_CR4_PAE) { efi_bak_pg_dir_pointer[0].pgd = @@ -91,7 +91,7 @@ void efi_call_phys_epilog(void) gdt_descr.size = GDT_SIZE - 1; load_gdt(&gdt_descr); - cr4 = read_cr4(); + cr4 = read_cr4_safe(); if (cr4 & X86_CR4_PAE) { swapper_pg_dir[pgd_index(0)].pgd = diff --git a/arch/x86/power/cpu_32.c b/arch/x86/power/cpu_32.c index 7dc5d5cf50a..d3e083dea72 100644 --- a/arch/x86/power/cpu_32.c +++ b/arch/x86/power/cpu_32.c @@ -45,7 +45,7 @@ static void __save_processor_state(struct saved_context *ctxt) ctxt->cr0 = read_cr0(); ctxt->cr2 = read_cr2(); ctxt->cr3 = read_cr3(); - ctxt->cr4 = read_cr4(); + ctxt->cr4 = read_cr4_safe(); } /* Needed by apm.c */ @@ -98,7 +98,9 @@ static void __restore_processor_state(struct saved_context *ctxt) /* * control registers */ - write_cr4(ctxt->cr4); + /* cr4 was introduced in the Pentium CPU */ + if (ctxt->cr4) + write_cr4(ctxt->cr4); write_cr3(ctxt->cr3); write_cr2(ctxt->cr2); write_cr0(ctxt->cr0); diff --git a/arch/x86/power/hibernate_asm_32.S b/arch/x86/power/hibernate_asm_32.S index b95aa6cfe3c..4fc7e872c85 100644 --- a/arch/x86/power/hibernate_asm_32.S +++ b/arch/x86/power/hibernate_asm_32.S @@ -28,9 +28,9 @@ ENTRY(swsusp_arch_suspend) ret ENTRY(restore_image) - movl resume_pg_dir, %ecx - subl $__PAGE_OFFSET, %ecx - movl %ecx, %cr3 + movl resume_pg_dir, %eax + subl $__PAGE_OFFSET, %eax + movl %eax, %cr3 movl restore_pblist, %edx .p2align 4,,7 @@ -52,17 +52,21 @@ copy_loop: done: /* go back to the original page tables */ - movl $swapper_pg_dir, %ecx - subl $__PAGE_OFFSET, %ecx - movl %ecx, %cr3 + movl $swapper_pg_dir, %eax + subl $__PAGE_OFFSET, %eax + movl %eax, %cr3 /* Flush TLB, including "global" things (vmalloc) */ - movl mmu_cr4_features, %eax - movl %eax, %edx + movl mmu_cr4_features, %ecx + jecxz 1f # cr4 Pentium and higher, skip if zero + movl %ecx, %edx andl $~(1<<7), %edx; # PGE movl %edx, %cr4; # turn off PGE - movl %cr3, %ecx; # flush TLB - movl %ecx, %cr3 - movl %eax, %cr4; # turn PGE back on +1: + movl %cr3, %eax; # flush TLB + movl %eax, %cr3 + jecxz 1f # cr4 Pentium and higher, skip if zero + movl %ecx, %cr4; # turn PGE back on +1: movl saved_context_esp, %esp movl saved_context_ebp, %ebp -- cgit v1.2.3 From d19fbfdfe6a7034c8b6a7062365780485ab5aeaa Mon Sep 17 00:00:00 2001 From: Marcin Slusarz Date: Sun, 17 Aug 2008 17:50:51 +0200 Subject: x86: silence section mismatch warning - get_local_pda Take out part of get_local_pda referencing __init function (free_bootmem) to new (static) function marked as __ref. It's safe to do because free_bootmem is called before __init sections are dropped. WARNING: vmlinux.o(.cpuinit.text+0x3cd7): Section mismatch in reference from the function get_local_pda() to the function .init.text:free_bootmem() The function __cpuinit get_local_pda() references a function __init free_bootmem(). If free_bootmem is only used by get_local_pda then annotate free_bootmem with a matching annotation. Signed-off-by: Marcin Slusarz Cc: Mike Travis Signed-off-by: Ingo Molnar --- arch/x86/kernel/smpboot.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c index a8fb8a980fa..e139e617f42 100644 --- a/arch/x86/kernel/smpboot.c +++ b/arch/x86/kernel/smpboot.c @@ -756,6 +756,14 @@ static void __cpuinit do_fork_idle(struct work_struct *work) } #ifdef CONFIG_X86_64 + +/* __ref because it's safe to call free_bootmem when after_bootmem == 0. */ +static void __ref free_bootmem_pda(struct x8664_pda *oldpda) +{ + if (!after_bootmem) + free_bootmem((unsigned long)oldpda, sizeof(*oldpda)); +} + /* * Allocate node local memory for the AP pda. * @@ -784,8 +792,7 @@ int __cpuinit get_local_pda(int cpu) if (oldpda) { memcpy(newpda, oldpda, size); - if (!after_bootmem) - free_bootmem((unsigned long)oldpda, size); + free_bootmem_pda(oldpda); } newpda->in_bootmem = 0; -- cgit v1.2.3 From f71066624d5d91bf179a1ea25da0800b72e20c60 Mon Sep 17 00:00:00 2001 From: Marcin Slusarz Date: Sun, 17 Aug 2008 17:50:52 +0200 Subject: x86, calgary: fix section mismatch warning - get_tce_space_from_tar WARNING: vmlinux.o(.text+0x27032): Section mismatch in reference from the function get_tce_space_from_tar() to the function .init.text:calgary_bus_has_devices() The function get_tce_space_from_tar() references the function __init calgary_bus_has_devices(). This is often because get_tce_space_from_tar lacks a __init annotation or the annotation of calgary_bus_has_devices is wrong. get_tce_space_from_tar is called only from __init function (calgary_init) and calls __init function (calgary_bus_has_devices). So annotate it properly. Signed-off-by: Marcin Slusarz Cc: Chandru Siddalingappa Signed-off-by: Ingo Molnar --- arch/x86/kernel/pci-calgary_64.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c index 02d19328525..218d783ed7a 100644 --- a/arch/x86/kernel/pci-calgary_64.c +++ b/arch/x86/kernel/pci-calgary_64.c @@ -1350,7 +1350,7 @@ static void calgary_init_bitmap_from_tce_table(struct iommu_table *tbl) * Function for kdump case. Get the tce tables from first kernel * by reading the contents of the base adress register of calgary iommu */ -static void get_tce_space_from_tar(void) +static void __init get_tce_space_from_tar(void) { int bus; void __iomem *target; -- cgit v1.2.3 From 1b72691ce35812ff865d778f303779e774d2b098 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Mon, 18 Aug 2008 09:06:01 +0200 Subject: x86: fix build warnings in real mode code This recent patch commit c3965bd15118742d72b4bc1a290d37b3f081eb98 Author: Paul Jackson Date: Wed May 14 08:15:34 2008 -0700 x86 boot: proper use of ARRAY_SIZE instead of repeated E820MAX constant caused these new warnings during a normal build: In file included from linux-2.6/arch/x86/boot/memory.c:17: linux-2.6/include/linux/log2.h: In function '__ilog2_u32': linux-2.6/include/linux/log2.h:34: warning: implicit declaration of function 'fls' linux-2.6/include/linux/log2.h: In function '__ilog2_u64': linux-2.6/include/linux/log2.h:42: warning: implicit declaration of function 'fls64' linux-2.6/include/linux/log2.h: In function '__roundup_pow_of_two ': linux-2.6/include/linux/log2.h:63: warning: implicit declaration of function 'fls_long' I tried to fix them in log2.h, but it's difficult because the real mode environment is completely different from a normal kernel environment. Instead define an own ARRAY_SIZE macro in boot.h, similar to the other private macros there. Signed-off-by: Andi Kleen Signed-off-by: Ingo Molnar --- arch/x86/boot/boot.h | 2 ++ arch/x86/boot/memory.c | 1 - 2 files changed, 2 insertions(+), 1 deletion(-) (limited to 'arch/x86') diff --git a/arch/x86/boot/boot.h b/arch/x86/boot/boot.h index 616b804a229..cc0ef13fba7 100644 --- a/arch/x86/boot/boot.h +++ b/arch/x86/boot/boot.h @@ -30,6 +30,8 @@ /* Useful macros */ #define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)])) +#define ARRAY_SIZE(x) (sizeof(x) / sizeof(*(x))) + extern struct setup_header hdr; extern struct boot_params boot_params; diff --git a/arch/x86/boot/memory.c b/arch/x86/boot/memory.c index 53165c97336..8c3c25f3557 100644 --- a/arch/x86/boot/memory.c +++ b/arch/x86/boot/memory.c @@ -13,7 +13,6 @@ */ #include "boot.h" -#include #define SMAP 0x534d4150 /* ASCII "SMAP" */ -- cgit v1.2.3 From 8bfcb3960fde049b863266dab8c3617bb5a541aa Mon Sep 17 00:00:00 2001 From: Thomas Petazzoni Date: Mon, 18 Aug 2008 12:33:20 +0200 Subject: x86: make movsl_mask definition non-CPU specific movsl_mask is currently defined in arch/x86/kernel/cpu/intel.c, which contains code specific to Intel CPUs. However, movsl_mask is used in the non-CPU specific code in arch/x86/lib/usercopy_32.c, which breaks the compilation when support for Intel CPUs is compiled out. This patch solves this problem by moving movsl_mask's definition close to its users in arch/x86/lib/usercopy_32.c. Signed-off-by: Thomas Petazzoni Cc: michael@free-electrons.com Signed-off-by: Ingo Molnar --- arch/x86/kernel/cpu/intel.c | 7 ------- arch/x86/lib/usercopy_32.c | 7 +++++++ 2 files changed, 7 insertions(+), 7 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c index b75f2569b8f..5c8959b8a42 100644 --- a/arch/x86/kernel/cpu/intel.c +++ b/arch/x86/kernel/cpu/intel.c @@ -23,13 +23,6 @@ #include #endif -#ifdef CONFIG_X86_INTEL_USERCOPY -/* - * Alignment at which movsl is preferred for bulk memory copies. - */ -struct movsl_mask movsl_mask __read_mostly; -#endif - static void __cpuinit early_init_intel(struct cpuinfo_x86 *c) { /* Netburst reports 64 bytes clflush size, but does IO in 128 bytes */ diff --git a/arch/x86/lib/usercopy_32.c b/arch/x86/lib/usercopy_32.c index 24e60944971..9e68075544f 100644 --- a/arch/x86/lib/usercopy_32.c +++ b/arch/x86/lib/usercopy_32.c @@ -14,6 +14,13 @@ #include #include +#ifdef CONFIG_X86_INTEL_USERCOPY +/* + * Alignment at which movsl is preferred for bulk memory copies. + */ +struct movsl_mask movsl_mask __read_mostly; +#endif + static inline int __movsl_is_ok(unsigned long a1, unsigned long a2, unsigned long n) { #ifdef CONFIG_X86_INTEL_USERCOPY -- cgit v1.2.3 From 774400a3ba23b63f4de39e67ce6c4e48935809dc Mon Sep 17 00:00:00 2001 From: Thomas Petazzoni Date: Mon, 18 Aug 2008 12:33:21 +0200 Subject: x86: move cmpxchg fallbacks to a generic place arch/x86/kernel/cpu/intel.c defines a few fallback functions (cmpxchg_*()) that are used when the CPU doesn't support cmpxchg and/or cmpxchg64 natively. However, while defined in an Intel-specific file, these functions are also used for CPUs from other vendors when they don't support cmpxchg and/or cmpxchg64. This breaks the compilation when support for Intel CPUs is disabled. This patch moves these functions to a new arch/x86/kernel/cpu/cmpxchg.c file, unconditionally compiled when X86_32 is enabled. Signed-off-by: Thomas Petazzoni Cc: michael@free-electrons.com Signed-off-by: Ingo Molnar --- arch/x86/kernel/cpu/Makefile | 2 +- arch/x86/kernel/cpu/cmpxchg.c | 72 +++++++++++++++++++++++++++++++++++++++++++ arch/x86/kernel/cpu/intel.c | 64 -------------------------------------- 3 files changed, 73 insertions(+), 65 deletions(-) create mode 100644 arch/x86/kernel/cpu/cmpxchg.c (limited to 'arch/x86') diff --git a/arch/x86/kernel/cpu/Makefile b/arch/x86/kernel/cpu/Makefile index ee76eaad300..25b4c063fbf 100644 --- a/arch/x86/kernel/cpu/Makefile +++ b/arch/x86/kernel/cpu/Makefile @@ -5,7 +5,7 @@ obj-y := intel_cacheinfo.o addon_cpuid_features.o obj-y += proc.o feature_names.o -obj-$(CONFIG_X86_32) += common.o bugs.o +obj-$(CONFIG_X86_32) += common.o bugs.o cmpxchg.o obj-$(CONFIG_X86_64) += common_64.o bugs_64.o obj-$(CONFIG_X86_32) += amd.o obj-$(CONFIG_X86_64) += amd_64.o diff --git a/arch/x86/kernel/cpu/cmpxchg.c b/arch/x86/kernel/cpu/cmpxchg.c new file mode 100644 index 00000000000..2056ccf572c --- /dev/null +++ b/arch/x86/kernel/cpu/cmpxchg.c @@ -0,0 +1,72 @@ +/* + * cmpxchg*() fallbacks for CPU not supporting these instructions + */ + +#include +#include +#include + +#ifndef CONFIG_X86_CMPXCHG +unsigned long cmpxchg_386_u8(volatile void *ptr, u8 old, u8 new) +{ + u8 prev; + unsigned long flags; + + /* Poor man's cmpxchg for 386. Unsuitable for SMP */ + local_irq_save(flags); + prev = *(u8 *)ptr; + if (prev == old) + *(u8 *)ptr = new; + local_irq_restore(flags); + return prev; +} +EXPORT_SYMBOL(cmpxchg_386_u8); + +unsigned long cmpxchg_386_u16(volatile void *ptr, u16 old, u16 new) +{ + u16 prev; + unsigned long flags; + + /* Poor man's cmpxchg for 386. Unsuitable for SMP */ + local_irq_save(flags); + prev = *(u16 *)ptr; + if (prev == old) + *(u16 *)ptr = new; + local_irq_restore(flags); + return prev; +} +EXPORT_SYMBOL(cmpxchg_386_u16); + +unsigned long cmpxchg_386_u32(volatile void *ptr, u32 old, u32 new) +{ + u32 prev; + unsigned long flags; + + /* Poor man's cmpxchg for 386. Unsuitable for SMP */ + local_irq_save(flags); + prev = *(u32 *)ptr; + if (prev == old) + *(u32 *)ptr = new; + local_irq_restore(flags); + return prev; +} +EXPORT_SYMBOL(cmpxchg_386_u32); +#endif + +#ifndef CONFIG_X86_CMPXCHG64 +unsigned long long cmpxchg_486_u64(volatile void *ptr, u64 old, u64 new) +{ + u64 prev; + unsigned long flags; + + /* Poor man's cmpxchg8b for 386 and 486. Unsuitable for SMP */ + local_irq_save(flags); + prev = *(u64 *)ptr; + if (prev == old) + *(u64 *)ptr = new; + local_irq_restore(flags); + return prev; +} +EXPORT_SYMBOL(cmpxchg_486_u64); +#endif + diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c index 5c8959b8a42..77618c717d7 100644 --- a/arch/x86/kernel/cpu/intel.c +++ b/arch/x86/kernel/cpu/intel.c @@ -307,69 +307,5 @@ static struct cpu_dev intel_cpu_dev __cpuinitdata = { cpu_vendor_dev_register(X86_VENDOR_INTEL, &intel_cpu_dev); -#ifndef CONFIG_X86_CMPXCHG -unsigned long cmpxchg_386_u8(volatile void *ptr, u8 old, u8 new) -{ - u8 prev; - unsigned long flags; - - /* Poor man's cmpxchg for 386. Unsuitable for SMP */ - local_irq_save(flags); - prev = *(u8 *)ptr; - if (prev == old) - *(u8 *)ptr = new; - local_irq_restore(flags); - return prev; -} -EXPORT_SYMBOL(cmpxchg_386_u8); - -unsigned long cmpxchg_386_u16(volatile void *ptr, u16 old, u16 new) -{ - u16 prev; - unsigned long flags; - - /* Poor man's cmpxchg for 386. Unsuitable for SMP */ - local_irq_save(flags); - prev = *(u16 *)ptr; - if (prev == old) - *(u16 *)ptr = new; - local_irq_restore(flags); - return prev; -} -EXPORT_SYMBOL(cmpxchg_386_u16); - -unsigned long cmpxchg_386_u32(volatile void *ptr, u32 old, u32 new) -{ - u32 prev; - unsigned long flags; - - /* Poor man's cmpxchg for 386. Unsuitable for SMP */ - local_irq_save(flags); - prev = *(u32 *)ptr; - if (prev == old) - *(u32 *)ptr = new; - local_irq_restore(flags); - return prev; -} -EXPORT_SYMBOL(cmpxchg_386_u32); -#endif - -#ifndef CONFIG_X86_CMPXCHG64 -unsigned long long cmpxchg_486_u64(volatile void *ptr, u64 old, u64 new) -{ - u64 prev; - unsigned long flags; - - /* Poor man's cmpxchg8b for 386 and 486. Unsuitable for SMP */ - local_irq_save(flags); - prev = *(u64 *)ptr; - if (prev == old) - *(u64 *)ptr = new; - local_irq_restore(flags); - return prev; -} -EXPORT_SYMBOL(cmpxchg_486_u64); -#endif - /* arch_initcall(intel_cpu_init); */ -- cgit v1.2.3 From 8d02c2110b3fb8e2700b31596a582a2989fd72ba Mon Sep 17 00:00:00 2001 From: Thomas Petazzoni Date: Tue, 5 Aug 2008 11:45:19 +0200 Subject: x86: configuration options to compile out x86 CPU support code This patch adds some configuration options that allow to compile out CPU vendor-specific code in x86 kernels (in arch/x86/kernel/cpu). The new configuration options are only visible when CONFIG_EMBEDDED is selected, as they are mostly interesting for space savings reasons. An example of size saving, on x86 with only Intel CPU support: text data bss dec hex filename 1125479 118760 212992 1457231 163c4f vmlinux.old 1121355 116536 212992 1450883 162383 vmlinux -4124 -2224 0 -6348 -18CC +/- However, I'm not exactly sure that the Kconfig wording is correct with regard to !64BIT / 64BIT. [ mingo@elte.hu: convert macro to inline ] Signed-off-by: Thomas Petazzoni Signed-off-by: Ingo Molnar --- arch/x86/Kconfig.cpu | 70 ++++++++++++++++++++++++++++++++++++++++++++ arch/x86/kernel/cpu/Makefile | 19 ++++++------ 2 files changed, 80 insertions(+), 9 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu index 2c518fbc52e..6156ac25ff8 100644 --- a/arch/x86/Kconfig.cpu +++ b/arch/x86/Kconfig.cpu @@ -415,3 +415,73 @@ config X86_MINIMUM_CPU_FAMILY config X86_DEBUGCTLMSR def_bool y depends on !(MK6 || MWINCHIPC6 || MWINCHIP2 || MWINCHIP3D || MCYRIXIII || M586MMX || M586TSC || M586 || M486 || M386) + +menuconfig PROCESSOR_SELECT + default y + bool "Supported processor vendors" if EMBEDDED + help + This lets you choose what x86 vendor support code your kernel + will include. + +config CPU_SUP_INTEL_32 + default y + bool "Support Intel processors" if PROCESSOR_SELECT + depends on !64BIT + help + This enables extended support for Intel processors + +config CPU_SUP_INTEL_64 + default y + bool "Support Intel processors" if PROCESSOR_SELECT + depends on 64BIT + help + This enables extended support for Intel processors + +config CPU_SUP_CYRIX_32 + default y + bool "Support Cyrix processors" if PROCESSOR_SELECT + depends on !64BIT + help + This enables extended support for Cyrix processors + +config CPU_SUP_AMD_32 + default y + bool "Support AMD processors" if PROCESSOR_SELECT + depends on !64BIT + help + This enables extended support for AMD processors + +config CPU_SUP_AMD_64 + default y + bool "Support AMD processors" if PROCESSOR_SELECT + depends on 64BIT + help + This enables extended support for AMD processors + +config CPU_SUP_CENTAUR_32 + default y + bool "Support Centaur processors" if PROCESSOR_SELECT + depends on !64BIT + help + This enables extended support for Centaur processors + +config CPU_SUP_CENTAUR_64 + default y + bool "Support Centaur processors" if PROCESSOR_SELECT + depends on 64BIT + help + This enables extended support for Centaur processors + +config CPU_SUP_TRANSMETA_32 + default y + bool "Support Transmeta processors" if PROCESSOR_SELECT + depends on !64BIT + help + This enables extended support for Transmeta processors + +config CPU_SUP_UMC_32 + default y + bool "Support UMC processors" if PROCESSOR_SELECT + depends on !64BIT + help + This enables extended support for UMC processors diff --git a/arch/x86/kernel/cpu/Makefile b/arch/x86/kernel/cpu/Makefile index 25b4c063fbf..a0fc6c14438 100644 --- a/arch/x86/kernel/cpu/Makefile +++ b/arch/x86/kernel/cpu/Makefile @@ -7,15 +7,16 @@ obj-y += proc.o feature_names.o obj-$(CONFIG_X86_32) += common.o bugs.o cmpxchg.o obj-$(CONFIG_X86_64) += common_64.o bugs_64.o -obj-$(CONFIG_X86_32) += amd.o -obj-$(CONFIG_X86_64) += amd_64.o -obj-$(CONFIG_X86_32) += cyrix.o -obj-$(CONFIG_X86_32) += centaur.o -obj-$(CONFIG_X86_64) += centaur_64.o -obj-$(CONFIG_X86_32) += transmeta.o -obj-$(CONFIG_X86_32) += intel.o -obj-$(CONFIG_X86_64) += intel_64.o -obj-$(CONFIG_X86_32) += umc.o + +obj-$(CONFIG_CPU_SUP_AMD_32) += amd.o +obj-$(CONFIG_CPU_SUP_AMD_64) += amd_64.o +obj-$(CONFIG_CPU_SUP_CYRIX_32) += cyrix.o +obj-$(CONFIG_CPU_SUP_CENTAUR_32) += centaur.o +obj-$(CONFIG_CPU_SUP_CENTAUR_64) += centaur_64.o +obj-$(CONFIG_CPU_SUP_TRANSMETA_32) += transmeta.o +obj-$(CONFIG_CPU_SUP_INTEL_32) += intel.o +obj-$(CONFIG_CPU_SUP_INTEL_64) += intel_64.o +obj-$(CONFIG_CPU_SUP_UMC_32) += umc.o obj-$(CONFIG_X86_MCE) += mcheck/ obj-$(CONFIG_MTRR) += mtrr/ -- cgit v1.2.3 From 8a7c5ef3ba8cca8f9c4f91ddef3d081f517914ae Mon Sep 17 00:00:00 2001 From: Jiri Kosina Date: Tue, 19 Aug 2008 02:13:55 +0200 Subject: x86 iommu: remove unneeded parenthesis The parenthesis in __iommu_queue_command() are not needed when assigning into 'target' variable. Signed-off-by: Jiri Kosina Signed-off-by: Ingo Molnar --- arch/x86/kernel/amd_iommu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c index de39e1f2ede..69b4d060b21 100644 --- a/arch/x86/kernel/amd_iommu.c +++ b/arch/x86/kernel/amd_iommu.c @@ -65,7 +65,7 @@ static int __iommu_queue_command(struct amd_iommu *iommu, struct iommu_cmd *cmd) u8 *target; tail = readl(iommu->mmio_base + MMIO_CMD_TAIL_OFFSET); - target = (iommu->cmd_buf + tail); + target = iommu->cmd_buf + tail; memcpy_toio(target, cmd, sizeof(*cmd)); tail = (tail + sizeof(*cmd)) % iommu->cmd_buf_size; head = readl(iommu->mmio_base + MMIO_CMD_HEAD_OFFSET); -- cgit v1.2.3 From e2fe16d91228a005811335fbc4fbad5d4f5b75af Mon Sep 17 00:00:00 2001 From: "H. Peter Anvin" Date: Fri, 15 Aug 2008 15:36:31 -0700 Subject: x86: boot: stub out unimplemented CPU feature words The CPU feature detection code in the boot code is somewhat minimal, and doesn't include all possible CPUID words. In particular, it doesn't contain the code for CPU feature words 2 (Transmeta), 3 (Linux-specific), 5 (VIA), or 7 (scattered). Zero them out, so we can still set those bits as known at compile time; in particular, this allows creating a Linux-specific NOPL flag and have it required (and therefore resolvable at compile time) in 64-bit mode. Signed-off-by: H. Peter Anvin --- arch/x86/boot/cpucheck.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/boot/cpucheck.c b/arch/x86/boot/cpucheck.c index 7804389ee00..19b14f7ef9f 100644 --- a/arch/x86/boot/cpucheck.c +++ b/arch/x86/boot/cpucheck.c @@ -46,12 +46,12 @@ static const u32 req_flags[NCAPINTS] = { REQUIRED_MASK0, REQUIRED_MASK1, - REQUIRED_MASK2, - REQUIRED_MASK3, + 0, /* REQUIRED_MASK2 not implemented in this file */ + 0, /* REQUIRED_MASK3 not implemented in this file */ REQUIRED_MASK4, - REQUIRED_MASK5, + 0, /* REQUIRED_MASK5 not implemented in this file */ REQUIRED_MASK6, - REQUIRED_MASK7, + 0, /* REQUIRED_MASK7 not implemented in this file */ }; #define A32(a, b, c, d) (((d) << 24)+((c) << 16)+((b) << 8)+(a)) -- cgit v1.2.3 From 7e00df5818964298c9821365a6cb7a8304227c5c Mon Sep 17 00:00:00 2001 From: "H. Peter Anvin" Date: Mon, 18 Aug 2008 17:39:32 -0700 Subject: x86: add NOPL as a synthetic CPU feature bit The long noops ("NOPL") are supposed to be detected by family >= 6. Unfortunately, several non-Intel x86 implementations, both hardware and software, don't obey this dictum. Instead, probe for NOPL directly by executing a NOPL instruction and see if we get #UD. Signed-off-by: H. Peter Anvin --- arch/x86/kernel/cpu/common.c | 32 +++++++++++++++++++++++++++++++- arch/x86/kernel/cpu/common_64.c | 36 ++++++++++++++++++++++++++++++++++++ arch/x86/kernel/cpu/feature_names.c | 3 ++- 3 files changed, 69 insertions(+), 2 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index 80ab20d4fa3..0785b3c8d04 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -13,6 +13,7 @@ #include #include #include +#include #ifdef CONFIG_X86_LOCAL_APIC #include #include @@ -341,6 +342,35 @@ static void __init early_cpu_detect(void) early_get_cap(c); } +/* + * The NOPL instruction is supposed to exist on all CPUs with + * family >= 6, unfortunately, that's not true in practice because + * of early VIA chips and (more importantly) broken virtualizers that + * are not easy to detect. Hence, probe for it based on first + * principles. + */ +static void __cpuinit detect_nopl(struct cpuinfo_x86 *c) +{ + const u32 nopl_signature = 0x888c53b1; /* Random number */ + u32 has_nopl = nopl_signature; + + clear_cpu_cap(c, X86_FEATURE_NOPL); + if (c->x86 >= 6) { + asm volatile("\n" + "1: .byte 0x0f,0x1f,0xc0\n" /* nopl %eax */ + "2:\n" + " .section .fixup,\"ax\"\n" + "3: xor %0,%0\n" + " jmp 2b\n" + " .previous\n" + _ASM_EXTABLE(1b,3b) + : "+a" (has_nopl)); + + if (has_nopl == nopl_signature) + set_cpu_cap(c, X86_FEATURE_NOPL); + } +} + static void __cpuinit generic_identify(struct cpuinfo_x86 *c) { u32 tfms, xlvl; @@ -395,8 +425,8 @@ static void __cpuinit generic_identify(struct cpuinfo_x86 *c) } init_scattered_cpuid_features(c); + detect_nopl(c); } - } static void __cpuinit squash_the_stupid_serial_number(struct cpuinfo_x86 *c) diff --git a/arch/x86/kernel/cpu/common_64.c b/arch/x86/kernel/cpu/common_64.c index dd6e3f15017..c3afba5a81a 100644 --- a/arch/x86/kernel/cpu/common_64.c +++ b/arch/x86/kernel/cpu/common_64.c @@ -18,6 +18,7 @@ #include #include #include +#include #include #ifdef CONFIG_X86_LOCAL_APIC #include @@ -215,6 +216,39 @@ static void __init early_cpu_support_print(void) } } +/* + * The NOPL instruction is supposed to exist on all CPUs with + * family >= 6, unfortunately, that's not true in practice because + * of early VIA chips and (more importantly) broken virtualizers that + * are not easy to detect. Hence, probe for it based on first + * principles. + * + * Note: no 64-bit chip is known to lack these, but put the code here + * for consistency with 32 bits, and to make it utterly trivial to + * diagnose the problem should it ever surface. + */ +static void __cpuinit detect_nopl(struct cpuinfo_x86 *c) +{ + const u32 nopl_signature = 0x888c53b1; /* Random number */ + u32 has_nopl = nopl_signature; + + clear_cpu_cap(c, X86_FEATURE_NOPL); + if (c->x86 >= 6) { + asm volatile("\n" + "1: .byte 0x0f,0x1f,0xc0\n" /* nopl %eax */ + "2:\n" + " .section .fixup,\"ax\"\n" + "3: xor %0,%0\n" + " jmp 2b\n" + " .previous\n" + _ASM_EXTABLE(1b,3b) + : "+a" (has_nopl)); + + if (has_nopl == nopl_signature) + set_cpu_cap(c, X86_FEATURE_NOPL); + } +} + static void __cpuinit early_identify_cpu(struct cpuinfo_x86 *c); void __init early_cpu_init(void) @@ -313,6 +347,8 @@ static void __cpuinit early_identify_cpu(struct cpuinfo_x86 *c) c->x86_phys_bits = eax & 0xff; } + detect_nopl(c); + if (c->x86_vendor != X86_VENDOR_UNKNOWN && cpu_devs[c->x86_vendor]->c_early_init) cpu_devs[c->x86_vendor]->c_early_init(c); diff --git a/arch/x86/kernel/cpu/feature_names.c b/arch/x86/kernel/cpu/feature_names.c index e43ad4ad4cb..c9017799497 100644 --- a/arch/x86/kernel/cpu/feature_names.c +++ b/arch/x86/kernel/cpu/feature_names.c @@ -39,7 +39,8 @@ const char * const x86_cap_flags[NCAPINTS*32] = { NULL, NULL, NULL, NULL, "constant_tsc", "up", NULL, "arch_perfmon", "pebs", "bts", NULL, NULL, - "rep_good", NULL, NULL, NULL, NULL, NULL, NULL, NULL, + "rep_good", NULL, NULL, NULL, + "nopl", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* Intel-defined (#2) */ -- cgit v1.2.3 From f1c5d30e1d79bbfb60eaf189db862d3cb2bcac92 Mon Sep 17 00:00:00 2001 From: "H. Peter Anvin" Date: Mon, 18 Aug 2008 17:50:33 -0700 Subject: x86: use X86_FEATURE_NOPL in alternatives Use X86_FEATURE_NOPL to determine if it is safe to use P6 NOPs in alternatives. Also, replace table and loop with simple if statement. Signed-off-by: H. Peter Anvin --- arch/x86/kernel/alternative.c | 36 +++++++++++++----------------------- 1 file changed, 13 insertions(+), 23 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c index 2763cb37b55..65a0c1b4869 100644 --- a/arch/x86/kernel/alternative.c +++ b/arch/x86/kernel/alternative.c @@ -145,35 +145,25 @@ static const unsigned char *const p6_nops[ASM_NOP_MAX+1] = { extern char __vsyscall_0; const unsigned char *const *find_nop_table(void) { - return boot_cpu_data.x86_vendor != X86_VENDOR_INTEL || - boot_cpu_data.x86 < 6 ? k8_nops : p6_nops; + if (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL && + boot_cpu_has(X86_FEATURE_NOPL)) + return p6_nops; + else + return k8_nops; } #else /* CONFIG_X86_64 */ -static const struct nop { - int cpuid; - const unsigned char *const *noptable; -} noptypes[] = { - { X86_FEATURE_K8, k8_nops }, - { X86_FEATURE_K7, k7_nops }, - { X86_FEATURE_P4, p6_nops }, - { X86_FEATURE_P3, p6_nops }, - { -1, NULL } -}; - const unsigned char *const *find_nop_table(void) { - const unsigned char *const *noptable = intel_nops; - int i; - - for (i = 0; noptypes[i].cpuid >= 0; i++) { - if (boot_cpu_has(noptypes[i].cpuid)) { - noptable = noptypes[i].noptable; - break; - } - } - return noptable; + if (boot_cpu_has(X86_FEATURE_K8)) + return k8_nops; + else if (boot_cpu_has(X86_FEATURE_K7)) + return k7_nops; + else if (boot_cpu_has(X86_FEATURE_NOPL)) + return p6_nops; + else + return intel_nops; } #endif /* CONFIG_X86_64 */ -- cgit v1.2.3 From f607e3a03c90e8c050cb0c12ec9967c2925cc812 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 19 Aug 2008 13:34:59 -0700 Subject: Revert "[CPUFREQ][2/2] preregister support for powernow-k8" This reverts commit 34ae7f35a21694aa5cb8829dc5142c39d73d6ba0, which has been reported to cause a number of problems. During suspend and resume, it apparently causes a crash in a CPU hotplug notifier to happen, although the exact details are sketchy because of the inability to get good traces during the suspend sequence. See buzilla entries http://bugzilla.kernel.org/show_bug.cgi?id=11296 http://bugzilla.kernel.org/show_bug.cgi?id=11339 for more examples and details. [ Mark: "Revert the patch for now. I'm still looking into getting a reliable reproduction and I do not have a fix at this time." ] Requested-by: Rafael J. Wysocki Acked-by: Mark Langsdorf Acked-by: Dave Jones Signed-off-by: Linus Torvalds --- arch/x86/kernel/cpu/cpufreq/powernow-k8.c | 109 ++++++++++-------------------- arch/x86/kernel/cpu/cpufreq/powernow-k8.h | 3 +- 2 files changed, 37 insertions(+), 75 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c index 4e7271999a7..84bb395038d 100644 --- a/arch/x86/kernel/cpu/cpufreq/powernow-k8.c +++ b/arch/x86/kernel/cpu/cpufreq/powernow-k8.c @@ -737,63 +737,44 @@ static int find_psb_table(struct powernow_k8_data *data) #ifdef CONFIG_X86_POWERNOW_K8_ACPI static void powernow_k8_acpi_pst_values(struct powernow_k8_data *data, unsigned int index) { - if (!data->acpi_data->state_count || (cpu_family == CPU_HW_PSTATE)) + if (!data->acpi_data.state_count || (cpu_family == CPU_HW_PSTATE)) return; - data->irt = (data->acpi_data->states[index].control >> IRT_SHIFT) & IRT_MASK; - data->rvo = (data->acpi_data->states[index].control >> RVO_SHIFT) & RVO_MASK; - data->exttype = (data->acpi_data->states[index].control >> EXT_TYPE_SHIFT) & EXT_TYPE_MASK; - data->plllock = (data->acpi_data->states[index].control >> PLL_L_SHIFT) & PLL_L_MASK; - data->vidmvs = 1 << ((data->acpi_data->states[index].control >> MVS_SHIFT) & MVS_MASK); - data->vstable = (data->acpi_data->states[index].control >> VST_SHIFT) & VST_MASK; -} - - -static struct acpi_processor_performance *acpi_perf_data; -static int preregister_valid; - -static int powernow_k8_cpu_preinit_acpi(void) -{ - acpi_perf_data = alloc_percpu(struct acpi_processor_performance); - if (!acpi_perf_data) - return -ENODEV; - - if (acpi_processor_preregister_performance(acpi_perf_data)) - return -ENODEV; - else - preregister_valid = 1; - return 0; + data->irt = (data->acpi_data.states[index].control >> IRT_SHIFT) & IRT_MASK; + data->rvo = (data->acpi_data.states[index].control >> RVO_SHIFT) & RVO_MASK; + data->exttype = (data->acpi_data.states[index].control >> EXT_TYPE_SHIFT) & EXT_TYPE_MASK; + data->plllock = (data->acpi_data.states[index].control >> PLL_L_SHIFT) & PLL_L_MASK; + data->vidmvs = 1 << ((data->acpi_data.states[index].control >> MVS_SHIFT) & MVS_MASK); + data->vstable = (data->acpi_data.states[index].control >> VST_SHIFT) & VST_MASK; } static int powernow_k8_cpu_init_acpi(struct powernow_k8_data *data) { struct cpufreq_frequency_table *powernow_table; int ret_val; - int cpu = 0; - data->acpi_data = percpu_ptr(acpi_perf_data, cpu); - if (acpi_processor_register_performance(data->acpi_data, data->cpu)) { + if (acpi_processor_register_performance(&data->acpi_data, data->cpu)) { dprintk("register performance failed: bad ACPI data\n"); return -EIO; } /* verify the data contained in the ACPI structures */ - if (data->acpi_data->state_count <= 1) { + if (data->acpi_data.state_count <= 1) { dprintk("No ACPI P-States\n"); goto err_out; } - if ((data->acpi_data->control_register.space_id != ACPI_ADR_SPACE_FIXED_HARDWARE) || - (data->acpi_data->status_register.space_id != ACPI_ADR_SPACE_FIXED_HARDWARE)) { + if ((data->acpi_data.control_register.space_id != ACPI_ADR_SPACE_FIXED_HARDWARE) || + (data->acpi_data.status_register.space_id != ACPI_ADR_SPACE_FIXED_HARDWARE)) { dprintk("Invalid control/status registers (%x - %x)\n", - data->acpi_data->control_register.space_id, - data->acpi_data->status_register.space_id); + data->acpi_data.control_register.space_id, + data->acpi_data.status_register.space_id); goto err_out; } /* fill in data->powernow_table */ powernow_table = kmalloc((sizeof(struct cpufreq_frequency_table) - * (data->acpi_data->state_count + 1)), GFP_KERNEL); + * (data->acpi_data.state_count + 1)), GFP_KERNEL); if (!powernow_table) { dprintk("powernow_table memory alloc failure\n"); goto err_out; @@ -806,12 +787,12 @@ static int powernow_k8_cpu_init_acpi(struct powernow_k8_data *data) if (ret_val) goto err_out_mem; - powernow_table[data->acpi_data->state_count].frequency = CPUFREQ_TABLE_END; - powernow_table[data->acpi_data->state_count].index = 0; + powernow_table[data->acpi_data.state_count].frequency = CPUFREQ_TABLE_END; + powernow_table[data->acpi_data.state_count].index = 0; data->powernow_table = powernow_table; /* fill in data */ - data->numps = data->acpi_data->state_count; + data->numps = data->acpi_data.state_count; if (first_cpu(per_cpu(cpu_core_map, data->cpu)) == data->cpu) print_basics(data); powernow_k8_acpi_pst_values(data, 0); @@ -819,31 +800,16 @@ static int powernow_k8_cpu_init_acpi(struct powernow_k8_data *data) /* notify BIOS that we exist */ acpi_processor_notify_smm(THIS_MODULE); - /* determine affinity, from ACPI if available */ - if (preregister_valid) { - if ((data->acpi_data->shared_type == CPUFREQ_SHARED_TYPE_ALL) || - (data->acpi_data->shared_type == CPUFREQ_SHARED_TYPE_ANY)) - data->starting_core_affinity = data->acpi_data->shared_cpu_map; - else - data->starting_core_affinity = cpumask_of_cpu(data->cpu); - } else { - /* best guess from family if not */ - if (cpu_family == CPU_HW_PSTATE) - data->starting_core_affinity = cpumask_of_cpu(data->cpu); - else - data->starting_core_affinity = per_cpu(cpu_core_map, data->cpu); - } - return 0; err_out_mem: kfree(powernow_table); err_out: - acpi_processor_unregister_performance(data->acpi_data, data->cpu); + acpi_processor_unregister_performance(&data->acpi_data, data->cpu); /* data->acpi_data.state_count informs us at ->exit() whether ACPI was used */ - data->acpi_data->state_count = 0; + data->acpi_data.state_count = 0; return -ENODEV; } @@ -855,10 +821,10 @@ static int fill_powernow_table_pstate(struct powernow_k8_data *data, struct cpuf rdmsr(MSR_PSTATE_CUR_LIMIT, hi, lo); data->max_hw_pstate = (hi & HW_PSTATE_MAX_MASK) >> HW_PSTATE_MAX_SHIFT; - for (i = 0; i < data->acpi_data->state_count; i++) { + for (i = 0; i < data->acpi_data.state_count; i++) { u32 index; - index = data->acpi_data->states[i].control & HW_PSTATE_MASK; + index = data->acpi_data.states[i].control & HW_PSTATE_MASK; if (index > data->max_hw_pstate) { printk(KERN_ERR PFX "invalid pstate %d - bad value %d.\n", i, index); printk(KERN_ERR PFX "Please report to BIOS manufacturer\n"); @@ -874,7 +840,7 @@ static int fill_powernow_table_pstate(struct powernow_k8_data *data, struct cpuf powernow_table[i].index = index; - powernow_table[i].frequency = data->acpi_data->states[i].core_frequency * 1000; + powernow_table[i].frequency = data->acpi_data.states[i].core_frequency * 1000; } return 0; } @@ -883,16 +849,16 @@ static int fill_powernow_table_fidvid(struct powernow_k8_data *data, struct cpuf { int i; int cntlofreq = 0; - for (i = 0; i < data->acpi_data->state_count; i++) { + for (i = 0; i < data->acpi_data.state_count; i++) { u32 fid; u32 vid; if (data->exttype) { - fid = data->acpi_data->states[i].status & EXT_FID_MASK; - vid = (data->acpi_data->states[i].status >> VID_SHIFT) & EXT_VID_MASK; + fid = data->acpi_data.states[i].status & EXT_FID_MASK; + vid = (data->acpi_data.states[i].status >> VID_SHIFT) & EXT_VID_MASK; } else { - fid = data->acpi_data->states[i].control & FID_MASK; - vid = (data->acpi_data->states[i].control >> VID_SHIFT) & VID_MASK; + fid = data->acpi_data.states[i].control & FID_MASK; + vid = (data->acpi_data.states[i].control >> VID_SHIFT) & VID_MASK; } dprintk(" %d : fid 0x%x, vid 0x%x\n", i, fid, vid); @@ -933,10 +899,10 @@ static int fill_powernow_table_fidvid(struct powernow_k8_data *data, struct cpuf cntlofreq = i; } - if (powernow_table[i].frequency != (data->acpi_data->states[i].core_frequency * 1000)) { + if (powernow_table[i].frequency != (data->acpi_data.states[i].core_frequency * 1000)) { printk(KERN_INFO PFX "invalid freq entries %u kHz vs. %u kHz\n", powernow_table[i].frequency, - (unsigned int) (data->acpi_data->states[i].core_frequency * 1000)); + (unsigned int) (data->acpi_data.states[i].core_frequency * 1000)); powernow_table[i].frequency = CPUFREQ_ENTRY_INVALID; continue; } @@ -946,12 +912,11 @@ static int fill_powernow_table_fidvid(struct powernow_k8_data *data, struct cpuf static void powernow_k8_cpu_exit_acpi(struct powernow_k8_data *data) { - if (data->acpi_data->state_count) - acpi_processor_unregister_performance(data->acpi_data, data->cpu); + if (data->acpi_data.state_count) + acpi_processor_unregister_performance(&data->acpi_data, data->cpu); } #else -static int powernow_k8_cpu_preinit_acpi(void) { return -ENODEV; } static int powernow_k8_cpu_init_acpi(struct powernow_k8_data *data) { return -ENODEV; } static void powernow_k8_cpu_exit_acpi(struct powernow_k8_data *data) { return; } static void powernow_k8_acpi_pst_values(struct powernow_k8_data *data, unsigned int index) { return; } @@ -1136,7 +1101,7 @@ static int powernowk8_verify(struct cpufreq_policy *pol) static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol) { struct powernow_k8_data *data; - cpumask_t oldmask = CPU_MASK_ALL; + cpumask_t oldmask; int rc; if (!cpu_online(pol->cpu)) @@ -1209,7 +1174,10 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol) /* run on any CPU again */ set_cpus_allowed_ptr(current, &oldmask); - pol->cpus = data->starting_core_affinity; + if (cpu_family == CPU_HW_PSTATE) + pol->cpus = cpumask_of_cpu(pol->cpu); + else + pol->cpus = per_cpu(cpu_core_map, pol->cpu); data->available_cores = &(pol->cpus); /* Take a crude guess here. @@ -1332,7 +1300,6 @@ static int __cpuinit powernowk8_init(void) } if (supported_cpus == num_online_cpus()) { - powernow_k8_cpu_preinit_acpi(); printk(KERN_INFO PFX "Found %d %s " "processors (%d cpu cores) (" VERSION ")\n", num_online_nodes(), @@ -1349,10 +1316,6 @@ static void __exit powernowk8_exit(void) dprintk("exit\n"); cpufreq_unregister_driver(&cpufreq_amd64_driver); - -#ifdef CONFIG_X86_POWERNOW_K8_ACPI - free_percpu(acpi_perf_data); -#endif } MODULE_AUTHOR("Paul Devriendt and Mark Langsdorf "); diff --git a/arch/x86/kernel/cpu/cpufreq/powernow-k8.h b/arch/x86/kernel/cpu/cpufreq/powernow-k8.h index a62612cd4be..ab48cfed4d9 100644 --- a/arch/x86/kernel/cpu/cpufreq/powernow-k8.h +++ b/arch/x86/kernel/cpu/cpufreq/powernow-k8.h @@ -33,13 +33,12 @@ struct powernow_k8_data { #ifdef CONFIG_X86_POWERNOW_K8_ACPI /* the acpi table needs to be kept. it's only available if ACPI was * used to determine valid frequency/vid/fid states */ - struct acpi_processor_performance *acpi_data; + struct acpi_processor_performance acpi_data; #endif /* we need to keep track of associated cores, but let cpufreq * handle hotplug events - so just point at cpufreq pol->cpus * structure */ cpumask_t *available_cores; - cpumask_t starting_core_affinity; }; -- cgit v1.2.3 From c6744955d0ec0cb485c28c51eeb7185e260f6172 Mon Sep 17 00:00:00 2001 From: Samuel Sieb Date: Wed, 6 Aug 2008 22:06:29 -0700 Subject: x86: fix "kernel won't boot on a Cyrix MediaGXm (Geode)" Cyrix MediaGXm/Cx5530 Unicorn Revision 1.19.3B has stopped booting starting at v2.6.22. The reason is this commit: > commit f25f64ed5bd3c2932493681bdfdb483ea707da0a > Author: Juergen Beisert > Date: Sun Jul 22 11:12:38 2007 +0200 > > x86: Replace NSC/Cyrix specific chipset access macros by inlined functions. this commit activated a macro which was dormant before due to (buggy) macro side-effects. I've looked through various datasheets and found that the GXm and GXLV Geode processors don't have an incrementor. Remove the incrementor setup entirely. As the incrementor value differs according to clock speed and we would hope that the BIOS configures it correctly, it is probably the right solution. Cc: Signed-off-by: Ingo Molnar --- arch/x86/kernel/cpu/cyrix.c | 18 ------------------ 1 file changed, 18 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/cpu/cyrix.c b/arch/x86/kernel/cpu/cyrix.c index 3fd7a67bb06..e710a21bb6e 100644 --- a/arch/x86/kernel/cpu/cyrix.c +++ b/arch/x86/kernel/cpu/cyrix.c @@ -134,23 +134,6 @@ static void __cpuinit set_cx86_memwb(void) setCx86(CX86_CCR2, getCx86(CX86_CCR2) | 0x14); } -static void __cpuinit set_cx86_inc(void) -{ - unsigned char ccr3; - - printk(KERN_INFO "Enable Incrementor on Cyrix/NSC processor.\n"); - - ccr3 = getCx86(CX86_CCR3); - setCx86(CX86_CCR3, (ccr3 & 0x0f) | 0x10); /* enable MAPEN */ - /* PCR1 -- Performance Control */ - /* Incrementor on, whatever that is */ - setCx86(CX86_PCR1, getCx86(CX86_PCR1) | 0x02); - /* PCR0 -- Performance Control */ - /* Incrementor Margin 10 */ - setCx86(CX86_PCR0, getCx86(CX86_PCR0) | 0x04); - setCx86(CX86_CCR3, ccr3); /* disable MAPEN */ -} - /* * Configure later MediaGX and/or Geode processor. */ @@ -174,7 +157,6 @@ static void __cpuinit geode_configure(void) set_cx86_memwb(); set_cx86_reorder(); - set_cx86_inc(); local_irq_restore(flags); } -- cgit v1.2.3 From 80c5e73d6028e0f03ab0c70e7c4cbf98ac2e0c43 Mon Sep 17 00:00:00 2001 From: Venki Pallipadi Date: Tue, 19 Aug 2008 16:28:01 -0700 Subject: x86: fix Xorg startup/shutdown slowdown with PAT Rene Herman reported significant Xorg startup/shutdown slowdown due to PAT. It turns out that the memtype list has thousands of entries. Add cached_entry to list add routine, in order to speed up the lookup for sequential reserve_memtype calls. Reported-by: Rene Herman Signed-off-by: Venkatesh Pallipadi Signed-off-by: Ingo Molnar --- arch/x86/mm/pat.c | 33 +++++++++++++++++++++++++++++++-- 1 file changed, 31 insertions(+), 2 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c index 2fe30916d4b..bb6e8a267bf 100644 --- a/arch/x86/mm/pat.c +++ b/arch/x86/mm/pat.c @@ -207,6 +207,9 @@ static int chk_conflict(struct memtype *new, struct memtype *entry, return -EBUSY; } +static struct memtype *cached_entry; +static u64 cached_start; + /* * req_type typically has one of the: * - _PAGE_CACHE_WB @@ -280,11 +283,17 @@ int reserve_memtype(u64 start, u64 end, unsigned long req_type, spin_lock(&memtype_lock); + if (cached_entry && start >= cached_start) + entry = cached_entry; + else + entry = list_entry(&memtype_list, struct memtype, nd); + /* Search for existing mapping that overlaps the current range */ where = NULL; - list_for_each_entry(entry, &memtype_list, nd) { + list_for_each_entry_continue(entry, &memtype_list, nd) { if (end <= entry->start) { where = entry->nd.prev; + cached_entry = list_entry(where, struct memtype, nd); break; } else if (start <= entry->start) { /* end > entry->start */ err = chk_conflict(new, entry, new_type); @@ -292,6 +301,8 @@ int reserve_memtype(u64 start, u64 end, unsigned long req_type, dprintk("Overlap at 0x%Lx-0x%Lx\n", entry->start, entry->end); where = entry->nd.prev; + cached_entry = list_entry(where, + struct memtype, nd); } break; } else if (start < entry->end) { /* start > entry->start */ @@ -299,7 +310,20 @@ int reserve_memtype(u64 start, u64 end, unsigned long req_type, if (!err) { dprintk("Overlap at 0x%Lx-0x%Lx\n", entry->start, entry->end); - where = &entry->nd; + cached_entry = list_entry(entry->nd.prev, + struct memtype, nd); + + /* + * Move to right position in the linked + * list to add this new entry + */ + list_for_each_entry_continue(entry, + &memtype_list, nd) { + if (start <= entry->start) { + where = entry->nd.prev; + break; + } + } } break; } @@ -314,6 +338,8 @@ int reserve_memtype(u64 start, u64 end, unsigned long req_type, return err; } + cached_start = start; + if (where) list_add(&new->nd, where); else @@ -343,6 +369,9 @@ int free_memtype(u64 start, u64 end) spin_lock(&memtype_lock); list_for_each_entry(entry, &memtype_list, nd) { if (entry->start == start && entry->end == end) { + if (cached_entry == entry || cached_start == start) + cached_entry = NULL; + list_del(&entry->nd); kfree(entry); err = 0; -- cgit v1.2.3 From 99dd8713306a89f3e106143581244e550e00a644 Mon Sep 17 00:00:00 2001 From: Cliff Wickman Date: Tue, 19 Aug 2008 12:51:59 -0500 Subject: x86, SGI UV: hardcode the TLB flush interrupt system vector The UV TLB shootdown mechanism needs a system interrupt vector. Its vector had been hardcoded as 200, but needs to moved to the reserved system vector range so that it does not collide with some device vector. This is still temporary until dynamic system IRQ allocation is provided. But it will be needed when real UV hardware becomes available and runs 2.6.27. Signed-off-by: Cliff Wickman Signed-off-by: Ingo Molnar --- arch/x86/kernel/tlb_uv.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/tlb_uv.c b/arch/x86/kernel/tlb_uv.c index d0fbb7712ab..8b8c0d6640f 100644 --- a/arch/x86/kernel/tlb_uv.c +++ b/arch/x86/kernel/tlb_uv.c @@ -17,6 +17,7 @@ #include #include #include +#include #include @@ -783,7 +784,7 @@ static int __init uv_bau_init(void) uv_init_blade(blade, node, cur_cpu); cur_cpu += uv_blade_nr_possible_cpus(blade); } - set_intr_gate(UV_BAU_MESSAGE, uv_bau_message_intr1); + alloc_intr_gate(UV_BAU_MESSAGE, uv_bau_message_intr1); uv_enable_timeouts(); return 0; -- cgit v1.2.3 From 80a8c9fffa78f57d7d4351af2f15a56386805ceb Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Tue, 19 Aug 2008 03:13:38 +0200 Subject: x86: fix oprofile + hibernation badness Vegard Nossum reported oprofile + hibernation problems: > Now some warnings: > > ------------[ cut here ]------------ > WARNING: at /uio/arkimedes/s29/vegardno/git-working/linux-2.6/kernel/smp.c:328 s > mp_call_function_mask+0x194/0x1a0() The usual problem: the suspend function when interrupts are already disabled calls smp_call_function which is not allowed with interrupt off. But at this point all the other CPUs should be already down anyways, so it should be enough to just drop that. This patch should fix that problem at least by fixing cpu hotplug& suspend support. [ mingo@elte.hu: fixed 5 coding style errors. ] Signed-off-by: Andi Kleen Tested-by: Vegard Nossum Signed-off-by: Ingo Molnar --- arch/x86/oprofile/nmi_int.c | 39 ++++++++++++++++++++++++++++++++++++--- 1 file changed, 36 insertions(+), 3 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/oprofile/nmi_int.c b/arch/x86/oprofile/nmi_int.c index 3f90289410e..0227694f7da 100644 --- a/arch/x86/oprofile/nmi_int.c +++ b/arch/x86/oprofile/nmi_int.c @@ -15,6 +15,7 @@ #include #include #include +#include #include #include #include @@ -28,23 +29,48 @@ static DEFINE_PER_CPU(unsigned long, saved_lvtpc); static int nmi_start(void); static void nmi_stop(void); +static void nmi_cpu_start(void *dummy); +static void nmi_cpu_stop(void *dummy); /* 0 == registered but off, 1 == registered and on */ static int nmi_enabled = 0; +#ifdef CONFIG_SMP +static int oprofile_cpu_notifier(struct notifier_block *b, unsigned long action, + void *data) +{ + int cpu = (unsigned long)data; + switch (action) { + case CPU_DOWN_FAILED: + case CPU_ONLINE: + smp_call_function_single(cpu, nmi_cpu_start, NULL, 0); + break; + case CPU_DOWN_PREPARE: + smp_call_function_single(cpu, nmi_cpu_stop, NULL, 1); + break; + } + return NOTIFY_DONE; +} + +static struct notifier_block oprofile_cpu_nb = { + .notifier_call = oprofile_cpu_notifier +}; +#endif + #ifdef CONFIG_PM static int nmi_suspend(struct sys_device *dev, pm_message_t state) { + /* Only one CPU left, just stop that one */ if (nmi_enabled == 1) - nmi_stop(); + nmi_cpu_stop(NULL); return 0; } static int nmi_resume(struct sys_device *dev) { if (nmi_enabled == 1) - nmi_start(); + nmi_cpu_start(NULL); return 0; } @@ -463,6 +489,9 @@ int __init op_nmi_init(struct oprofile_operations *ops) } init_sysfs(); +#ifdef CONFIG_SMP + register_cpu_notifier(&oprofile_cpu_nb); +#endif using_nmi = 1; ops->create_files = nmi_create_files; ops->setup = nmi_setup; @@ -476,6 +505,10 @@ int __init op_nmi_init(struct oprofile_operations *ops) void op_nmi_exit(void) { - if (using_nmi) + if (using_nmi) { exit_sysfs(); +#ifdef CONFIG_SMP + unregister_cpu_notifier(&oprofile_cpu_nb); +#endif + } } -- cgit v1.2.3 From 85d577979a8a94a32ca1d828a91c2eb8300bc9f2 Mon Sep 17 00:00:00 2001 From: David Howells Date: Mon, 18 Aug 2008 11:58:17 +0200 Subject: werror: fix pci calgary Fix an integer comparison always false warning in the PCI Calgary 64 driver. A u8 is being compared to something that's 512 by default, resulting in the following warning: arch/x86/kernel/pci-calgary_64.c:1285: warning: comparison is always false due to limited range of data type This was introduced by patch b34e90b8f0f30151349134f87b5dc6ef75a5218c. Signed-off-by: David Howells Signed-off-by: Ingo Molnar --- arch/x86/kernel/pci-calgary_64.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c index 218d783ed7a..363a74ec7a7 100644 --- a/arch/x86/kernel/pci-calgary_64.c +++ b/arch/x86/kernel/pci-calgary_64.c @@ -1269,13 +1269,15 @@ static inline int __init determine_tce_table_size(u64 ram) static int __init build_detail_arrays(void) { unsigned long ptr; - int i, scal_detail_size, rio_detail_size; + unsigned numnodes, i; + int scal_detail_size, rio_detail_size; - if (rio_table_hdr->num_scal_dev > MAX_NUMNODES){ + numnodes = rio_table_hdr->num_scal_dev; + if (numnodes > MAX_NUMNODES){ printk(KERN_WARNING "Calgary: MAX_NUMNODES too low! Defined as %d, " "but system has %d nodes.\n", - MAX_NUMNODES, rio_table_hdr->num_scal_dev); + MAX_NUMNODES, numnodes); return -ENODEV; } @@ -1296,8 +1298,7 @@ static int __init build_detail_arrays(void) } ptr = ((unsigned long)rio_table_hdr) + 3; - for (i = 0; i < rio_table_hdr->num_scal_dev; - i++, ptr += scal_detail_size) + for (i = 0; i < numnodes; i++, ptr += scal_detail_size) scal_devs[i] = (struct scal_detail *)ptr; for (i = 0; i < rio_table_hdr->num_rio_dev; -- cgit v1.2.3 From 0c072bb452f0cfd4959bc01ff3627d6385255b20 Mon Sep 17 00:00:00 2001 From: Arjan van de Ven Date: Tue, 8 Jul 2008 09:50:22 -0700 Subject: x86: use WARN() in arch/x86/mm/ioremap.c Use WARN() instead of a printk+WARN_ON() pair; this way the message becomes part of the warning section for better reporting/collection. Signed-off-by: Arjan van de Ven Cc: akpm@linux-foundation.org Signed-off-by: Ingo Molnar --- arch/x86/mm/ioremap.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c index 6ba6f889c79..d4b6e6a29ae 100644 --- a/arch/x86/mm/ioremap.c +++ b/arch/x86/mm/ioremap.c @@ -553,13 +553,11 @@ static int __init check_early_ioremap_leak(void) { if (!early_ioremap_nested) return 0; - - printk(KERN_WARNING + WARN(1, KERN_WARNING "Debug warning: early ioremap leak of %d areas detected.\n", - early_ioremap_nested); + early_ioremap_nested); printk(KERN_WARNING - "please boot with early_ioremap_debug and report the dmesg.\n"); - WARN_ON(1); + "please boot with early_ioremap_debug and report the dmesg.\n"); return 1; } -- cgit v1.2.3 From bde78a79a6eb015f33aa4660df1b06f5135def20 Mon Sep 17 00:00:00 2001 From: Arjan van de Ven Date: Tue, 8 Jul 2008 09:51:56 -0700 Subject: x86: use WARN() in arch/x86/kernel Use WARN() instead of a printk+WARN_ON() pair; this way the message becomes part of the warning section for better reporting/collection. This also allowed the folding of some if()'s into the WARN() Signed-off-by: Arjan van de Ven Cc: akpm@linux-foundation.org Signed-off-by: Ingo Molnar --- arch/x86/kernel/cpu/mtrr/main.c | 5 +---- arch/x86/kernel/pci-calgary_64.c | 3 +-- arch/x86/kernel/tsc_sync.c | 6 ++---- 3 files changed, 4 insertions(+), 10 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/cpu/mtrr/main.c b/arch/x86/kernel/cpu/mtrr/main.c index 6f23969c8fa..b117d7f8a56 100644 --- a/arch/x86/kernel/cpu/mtrr/main.c +++ b/arch/x86/kernel/cpu/mtrr/main.c @@ -1496,11 +1496,8 @@ int __init mtrr_trim_uncached_memory(unsigned long end_pfn) /* kvm/qemu doesn't have mtrr set right, don't trim them all */ if (!highest_pfn) { - if (!kvm_para_available()) { - printk(KERN_WARNING + WARN(!kvm_para_available(), KERN_WARNING "WARNING: strange, CPU MTRRs all blank?\n"); - WARN_ON(1); - } return 0; } diff --git a/arch/x86/kernel/pci-calgary_64.c b/arch/x86/kernel/pci-calgary_64.c index 363a74ec7a7..dcdac6c826e 100644 --- a/arch/x86/kernel/pci-calgary_64.c +++ b/arch/x86/kernel/pci-calgary_64.c @@ -343,9 +343,8 @@ static void iommu_free(struct iommu_table *tbl, dma_addr_t dma_addr, /* were we called with bad_dma_address? */ badend = bad_dma_address + (EMERGENCY_PAGES * PAGE_SIZE); if (unlikely((dma_addr >= bad_dma_address) && (dma_addr < badend))) { - printk(KERN_ERR "Calgary: driver tried unmapping bad DMA " + WARN(1, KERN_ERR "Calgary: driver tried unmapping bad DMA " "address 0x%Lx\n", dma_addr); - WARN_ON(1); return; } diff --git a/arch/x86/kernel/tsc_sync.c b/arch/x86/kernel/tsc_sync.c index 0577825cf89..9ffb01c31c4 100644 --- a/arch/x86/kernel/tsc_sync.c +++ b/arch/x86/kernel/tsc_sync.c @@ -88,11 +88,9 @@ static __cpuinit void check_tsc_warp(void) __raw_spin_unlock(&sync_lock); } } - if (!(now-start)) { - printk("Warning: zero tsc calibration delta: %Ld [max: %Ld]\n", + WARN(!(now-start), + "Warning: zero tsc calibration delta: %Ld [max: %Ld]\n", now-start, end-start); - WARN_ON(1); - } } /* -- cgit v1.2.3 From 7701e8c59b0e7cbcf21c1bc49d8b8c6db43027a4 Mon Sep 17 00:00:00 2001 From: Marcin Slusarz Date: Wed, 20 Aug 2008 21:07:47 +0200 Subject: x86, mmiotrace: silence section mismatch warning - leave_uniprocessor WARNING: vmlinux.o(.text+0x180af): Section mismatch in reference from the function leave_uniprocessor() to the function .cpuinit.text:cpu_up() The function leave_uniprocessor() references the function __cpuinit cpu_up(). This is often because leave_uniprocessor lacks a __cpuinit annotation or the annotation of cpu_up is wrong. leave_uniprocessor calls cpu_up only when CONFIG_HOTPLUG_CPU is set, so it can be safely annotated as __ref Signed-off-by: Marcin Slusarz Cc: Pekka Paalanen Signed-off-by: Ingo Molnar Cc: Ingo Molnar Cc: Pekka Paalanen --- arch/x86/mm/mmio-mod.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'arch/x86') diff --git a/arch/x86/mm/mmio-mod.c b/arch/x86/mm/mmio-mod.c index e7397e108be..635b50e8558 100644 --- a/arch/x86/mm/mmio-mod.c +++ b/arch/x86/mm/mmio-mod.c @@ -430,7 +430,9 @@ static void enter_uniprocessor(void) "may miss events.\n"); } -static void leave_uniprocessor(void) +/* __ref because leave_uniprocessor calls cpu_up which is __cpuinit, + but this whole function is ifdefed CONFIG_HOTPLUG_CPU */ +static void __ref leave_uniprocessor(void) { int cpu; int err; -- cgit v1.2.3 From 7946612de2087e163308e26034286fc2dc9dacf1 Mon Sep 17 00:00:00 2001 From: Jeremy Fitzhardinge Date: Wed, 20 Aug 2008 11:31:07 -0700 Subject: x86: export pv_lock_ops non-GPL None of the spinlock API is exported GPL, so there's no reason for pv_lock_ops to be. Signed-off-by: Jeremy Fitzhardinge Signed-off-by: Ingo Molnar Cc: drago01 --- arch/x86/kernel/paravirt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c index 94da4d52d79..300da17e61c 100644 --- a/arch/x86/kernel/paravirt.c +++ b/arch/x86/kernel/paravirt.c @@ -471,7 +471,7 @@ struct pv_lock_ops pv_lock_ops = { .spin_unlock = __ticket_spin_unlock, #endif }; -EXPORT_SYMBOL_GPL(pv_lock_ops); +EXPORT_SYMBOL(pv_lock_ops); EXPORT_SYMBOL_GPL(pv_time_ops); EXPORT_SYMBOL (pv_cpu_ops); -- cgit v1.2.3 From b2a6a58ca6a3ddf4e278a53199c5b8fd39adbc0e Mon Sep 17 00:00:00 2001 From: Vegard Nossum Date: Wed, 20 Aug 2008 18:18:26 +0200 Subject: x86: fix BUG: unable to handle kernel paging request (numaq_tsc_disable) This section mismatch: >> Seems to be a section mismatch; init_intel() is __cpuinit while >> numaq_tsc_disable() is __init. Seems to be introduced in: >> >> commit 64898a8bad8c94ad7a4bd5cc86b66edfbb081f4a >> Author: Yinghai Lu >> Date: Sat Jul 19 18:01:16 2008 -0700 >> >> x86: extend and use x86_quirks to clean up NUMAQ code > > Oops, I am wrong about numaq_tsc_disable() being __init. Still, I > believe that Yinghai might be able to say what's really wrong :-) Would lead to this crash: BUG: unable to handle kernel paging request at c08a45f0 IP: [] numaq_tsc_disable+0x0/0x40 Fixed by the patch below. Signed-off-by: Vegard Nossum Signed-off-by: Ingo Molnar --- arch/x86/kernel/numaq_32.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/numaq_32.c b/arch/x86/kernel/numaq_32.c index b8c45610b20..eecc8c18f01 100644 --- a/arch/x86/kernel/numaq_32.c +++ b/arch/x86/kernel/numaq_32.c @@ -73,7 +73,7 @@ static void __init smp_dump_qct(void) } -void __init numaq_tsc_disable(void) +void __cpuinit numaq_tsc_disable(void) { if (!found_numaq) return; -- cgit v1.2.3 From c15238df3b65e34fadb1021b0fb0d5aebc7c42c6 Mon Sep 17 00:00:00 2001 From: "venkatesh.pallipadi@intel.com" Date: Wed, 20 Aug 2008 16:45:51 -0700 Subject: x86: PAT proper tracking of set_memory_uc and friends Big thinko in pat memtype tracking code. reserve_memtype should be called with physical address and not virtual address. Signed-off-by: Venkatesh Pallipadi Signed-off-by: Suresh Siddha Signed-off-by: Ingo Molnar --- arch/x86/mm/pageattr.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c index f5f5154ea11..43e2f8483e4 100644 --- a/arch/x86/mm/pageattr.c +++ b/arch/x86/mm/pageattr.c @@ -849,7 +849,7 @@ int set_memory_uc(unsigned long addr, int numpages) /* * for now UC MINUS. see comments in ioremap_nocache() */ - if (reserve_memtype(addr, addr + numpages * PAGE_SIZE, + if (reserve_memtype(__pa(addr), __pa(addr) + numpages * PAGE_SIZE, _PAGE_CACHE_UC_MINUS, NULL)) return -EINVAL; @@ -868,7 +868,7 @@ int set_memory_wc(unsigned long addr, int numpages) if (!pat_enabled) return set_memory_uc(addr, numpages); - if (reserve_memtype(addr, addr + numpages * PAGE_SIZE, + if (reserve_memtype(__pa(addr), __pa(addr) + numpages * PAGE_SIZE, _PAGE_CACHE_WC, NULL)) return -EINVAL; @@ -884,7 +884,7 @@ int _set_memory_wb(unsigned long addr, int numpages) int set_memory_wb(unsigned long addr, int numpages) { - free_memtype(addr, addr + numpages * PAGE_SIZE); + free_memtype(__pa(addr), __pa(addr) + numpages * PAGE_SIZE); return _set_memory_wb(addr, numpages); } -- cgit v1.2.3 From 28df82ebab79c6a2b4295dd94fd8de88196a49df Mon Sep 17 00:00:00 2001 From: "venkatesh.pallipadi@intel.com" Date: Wed, 20 Aug 2008 16:45:52 -0700 Subject: devmem, x86: PAT Change /dev/mem mmap with O_SYNC to use UC_MINUS All kernel mappings like ioremap(), etc uses UC_MINUS as the type. /dev/mem mappings with /dev/mem being opened with O_SYNC however was using UC, resulting in a conflict with /dev/mem mmap failing. This seems to be affecting some apps (one being flashrom) which are using O_SYNC and which were working before. Switch /dev/mem with O_SYNC also to UC_MINUS. Signed-off-by: Venkatesh Pallipadi Signed-off-by: Ingo Molnar --- arch/x86/mm/pat.c | 17 +++++------------ 1 file changed, 5 insertions(+), 12 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c index bb6e8a267bf..2a50e0fa64a 100644 --- a/arch/x86/mm/pat.c +++ b/arch/x86/mm/pat.c @@ -390,14 +390,6 @@ int free_memtype(u64 start, u64 end) } -/* - * /dev/mem mmap interface. The memtype used for mapping varies: - * - Use UC for mappings with O_SYNC flag - * - Without O_SYNC flag, if there is any conflict in reserve_memtype, - * inherit the memtype from existing mapping. - * - Else use UC_MINUS memtype (for backward compatibility with existing - * X drivers. - */ pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn, unsigned long size, pgprot_t vma_prot) { @@ -435,14 +427,14 @@ int phys_mem_access_prot_allowed(struct file *file, unsigned long pfn, unsigned long size, pgprot_t *vma_prot) { u64 offset = ((u64) pfn) << PAGE_SHIFT; - unsigned long flags = _PAGE_CACHE_UC_MINUS; + unsigned long flags = -1; int retval; if (!range_is_allowed(pfn, size)) return 0; if (file->f_flags & O_SYNC) { - flags = _PAGE_CACHE_UC; + flags = _PAGE_CACHE_UC_MINUS; } #ifdef CONFIG_X86_32 @@ -465,13 +457,14 @@ int phys_mem_access_prot_allowed(struct file *file, unsigned long pfn, #endif /* - * With O_SYNC, we can only take UC mapping. Fail if we cannot. + * With O_SYNC, we can only take UC_MINUS mapping. Fail if we cannot. + * * Without O_SYNC, we want to get * - WB for WB-able memory and no other conflicting mappings * - UC_MINUS for non-WB-able memory with no other conflicting mappings * - Inherit from confliting mappings otherwise */ - if (flags != _PAGE_CACHE_UC_MINUS) { + if (flags != -1) { retval = reserve_memtype(offset, offset + size, flags, NULL); } else { retval = reserve_memtype(offset, offset + size, -1, &flags); -- cgit v1.2.3 From 8323444b5dba3fe55e56a95d20d8f55c1d6745af Mon Sep 17 00:00:00 2001 From: "venkatesh.pallipadi@intel.com" Date: Wed, 20 Aug 2008 16:45:53 -0700 Subject: x86: PAT Update validate_pat_support for intel CPUs Pentium III and Core Solo/Duo CPUs have an erratum " Page with PAT set to WC while associated MTRR is UC may consolidate to UC " which can result in WC setting in PAT to be ineffective. We will disable PAT on such CPUs, so that we can continue to use MTRR WC setting. Signed-off-by: Venkatesh Pallipadi Signed-off-by: Ingo Molnar --- arch/x86/kernel/cpu/addon_cpuid_features.c | 17 +++++++++++++++-- 1 file changed, 15 insertions(+), 2 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/cpu/addon_cpuid_features.c b/arch/x86/kernel/cpu/addon_cpuid_features.c index 84a8220a607..a6ef672adbb 100644 --- a/arch/x86/kernel/cpu/addon_cpuid_features.c +++ b/arch/x86/kernel/cpu/addon_cpuid_features.c @@ -56,9 +56,22 @@ void __cpuinit validate_pat_support(struct cpuinfo_x86 *c) switch (c->x86_vendor) { case X86_VENDOR_INTEL: - if (c->x86 == 0xF || (c->x86 == 6 && c->x86_model >= 15)) + /* + * There is a known erratum on Pentium III and Core Solo + * and Core Duo CPUs. + * " Page with PAT set to WC while associated MTRR is UC + * may consolidate to UC " + * Because of this erratum, it is better to stick with + * setting WC in MTRR rather than using PAT on these CPUs. + * + * Enable PAT WC only on P4, Core 2 or later CPUs. + */ + if (c->x86 > 0x6 || (c->x86 == 6 && c->x86_model >= 15)) return; - break; + + pat_disable("PAT WC disabled due to known CPU erratum."); + return; + case X86_VENDOR_AMD: case X86_VENDOR_CENTAUR: case X86_VENDOR_TRANSMETA: -- cgit v1.2.3 From 38cc1c3df77c1bb739a4766788eb9fa49f16ffdf Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Thu, 21 Aug 2008 20:24:24 -0700 Subject: x86: work around MTRR mask setting Joshua Hoblitt reported that only 3 GB of his 16 GB of RAM is usable. Booting with mtrr_show showed us the BIOS-initialized MTRR settings - which are all wrong. So the root cause is that the BIOS has not set the mask correctly: > [ 0.429971] MSR00000200: 00000000d0000000 > [ 0.433305] MSR00000201: 0000000ff0000800 > should be ==> [ 0.433305] MSR00000201: 0000003ff0000800 > > [ 0.436638] MSR00000202: 00000000e0000000 > [ 0.439971] MSR00000203: 0000000fe0000800 > should be ==> [ 0.439971] MSR00000203: 0000003fe0000800 > > [ 0.443304] MSR00000204: 0000000000000006 > [ 0.446637] MSR00000205: 0000000c00000800 > should be ==> [ 0.446637] MSR00000205: 0000003c00000800 > > [ 0.449970] MSR00000206: 0000000400000006 > [ 0.453303] MSR00000207: 0000000fe0000800 > should be ==> [ 0.453303] MSR00000207: 0000003fe0000800 > > [ 0.456636] MSR00000208: 0000000420000006 > [ 0.459970] MSR00000209: 0000000ff0000800 > should be ==> [ 0.459970] MSR00000209: 0000003ff0000800 So detect this borkage and add the prefix 111. Signed-off-by: Yinghai Lu Cc: Signed-off-by: Ingo Molnar --- arch/x86/kernel/cpu/mtrr/generic.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/cpu/mtrr/generic.c b/arch/x86/kernel/cpu/mtrr/generic.c index 509bd3d9eac..43102e03e2d 100644 --- a/arch/x86/kernel/cpu/mtrr/generic.c +++ b/arch/x86/kernel/cpu/mtrr/generic.c @@ -379,6 +379,7 @@ static void generic_get_mtrr(unsigned int reg, unsigned long *base, unsigned long *size, mtrr_type *type) { unsigned int mask_lo, mask_hi, base_lo, base_hi; + unsigned int tmp, hi; rdmsr(MTRRphysMask_MSR(reg), mask_lo, mask_hi); if ((mask_lo & 0x800) == 0) { @@ -392,8 +393,18 @@ static void generic_get_mtrr(unsigned int reg, unsigned long *base, rdmsr(MTRRphysBase_MSR(reg), base_lo, base_hi); /* Work out the shifted address mask. */ - mask_lo = size_or_mask | mask_hi << (32 - PAGE_SHIFT) - | mask_lo >> PAGE_SHIFT; + tmp = mask_hi << (32 - PAGE_SHIFT) | mask_lo >> PAGE_SHIFT; + mask_lo = size_or_mask | tmp; + /* Expand tmp with high bits to all 1s*/ + hi = fls(tmp); + if (hi > 0) { + tmp |= ~((1<<(hi - 1)) - 1); + + if (tmp != mask_lo) { + WARN_ON("mtrr: your BIOS has set up an incorrect mask, fixing it up.\n"); + mask_lo = tmp; + } + } /* This works correctly if size is a power of two, i.e. a contiguous range. */ -- cgit v1.2.3 From 8ae3a5a8dff2c92bd1087bb97c4a3bb61174303e Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Thu, 21 Aug 2008 14:27:22 +0100 Subject: x86: fix 1:1 mapping init on 64-bit (memory hotplug case) While I don't have a hotplug capable system at hand, I think two issues need fixing: - pud_phys (in kernel_physical_ampping_init()) would remain uninitialized in the after_bootmem case - the locking done just around phys_pmd_{init,update}() would leave out pgd updates, and it was needlessly covering code portions that do allocations (perhaps using a more friendly gfp value in alloc_low_page() would then be possible) Signed-off-by: Jan Beulich Signed-off-by: Ingo Molnar --- arch/x86/mm/init_64.c | 32 ++++++++++++++++++-------------- 1 file changed, 18 insertions(+), 14 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index a87ea0e4b3d..8f487705c3e 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -336,9 +336,12 @@ phys_pmd_init(pmd_t *pmd_page, unsigned long address, unsigned long end, } if (pmd_val(*pmd)) { - if (!pmd_large(*pmd)) + if (!pmd_large(*pmd)) { + spin_lock(&init_mm.page_table_lock); last_map_addr = phys_pte_update(pmd, address, - end); + end); + spin_unlock(&init_mm.page_table_lock); + } /* Count entries we're using from level2_ident_pgt */ if (start == 0) pages++; @@ -347,8 +350,10 @@ phys_pmd_init(pmd_t *pmd_page, unsigned long address, unsigned long end, if (page_size_mask & (1<> PAGE_SHIFT, PAGE_KERNEL_LARGE)); + spin_unlock(&init_mm.page_table_lock); last_map_addr = (address & PMD_MASK) + PMD_SIZE; continue; } @@ -357,7 +362,9 @@ phys_pmd_init(pmd_t *pmd_page, unsigned long address, unsigned long end, last_map_addr = phys_pte_init(pte, address, end); unmap_low_page(pte); + spin_lock(&init_mm.page_table_lock); pmd_populate_kernel(&init_mm, pmd, __va(pte_phys)); + spin_unlock(&init_mm.page_table_lock); } update_page_count(PG_LEVEL_2M, pages); return last_map_addr; @@ -370,9 +377,7 @@ phys_pmd_update(pud_t *pud, unsigned long address, unsigned long end, pmd_t *pmd = pmd_offset(pud, 0); unsigned long last_map_addr; - spin_lock(&init_mm.page_table_lock); last_map_addr = phys_pmd_init(pmd, address, end, page_size_mask); - spin_unlock(&init_mm.page_table_lock); __flush_tlb_all(); return last_map_addr; } @@ -408,20 +413,21 @@ phys_pud_init(pud_t *pud_page, unsigned long addr, unsigned long end, if (page_size_mask & (1<> PAGE_SHIFT, PAGE_KERNEL_LARGE)); + spin_unlock(&init_mm.page_table_lock); last_map_addr = (addr & PUD_MASK) + PUD_SIZE; continue; } pmd = alloc_low_page(&pmd_phys); - - spin_lock(&init_mm.page_table_lock); last_map_addr = phys_pmd_init(pmd, addr, end, page_size_mask); unmap_low_page(pmd); + + spin_lock(&init_mm.page_table_lock); pud_populate(&init_mm, pud, __va(pmd_phys)); spin_unlock(&init_mm.page_table_lock); - } __flush_tlb_all(); update_page_count(PG_LEVEL_1G, pages); @@ -513,16 +519,14 @@ static unsigned long __init kernel_physical_mapping_init(unsigned long start, continue; } - if (after_bootmem) - pud = pud_offset(pgd, start & PGDIR_MASK); - else - pud = alloc_low_page(&pud_phys); - + pud = alloc_low_page(&pud_phys); last_map_addr = phys_pud_init(pud, __pa(start), __pa(next), page_size_mask); unmap_low_page(pud); - pgd_populate(&init_mm, pgd_offset_k(start), - __va(pud_phys)); + + spin_lock(&init_mm.page_table_lock); + pgd_populate(&init_mm, pgd, __va(pud_phys)); + spin_unlock(&init_mm.page_table_lock); } return last_map_addr; -- cgit v1.2.3 From 9482ac6e34dd1890a9a956d460a135bf992cb54a Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Thu, 21 Aug 2008 14:28:42 +0100 Subject: x86: fix two modpost warnings in mm/init_64.c early_io{re,un}map() are __init and hence can't be called from __meminit functions. Signed-off-by: Jan Beulich Signed-off-by: Ingo Molnar --- arch/x86/mm/init_64.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index 8f487705c3e..d3746efb060 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -241,7 +241,7 @@ static unsigned long __initdata table_start; static unsigned long __meminitdata table_end; static unsigned long __meminitdata table_top; -static __meminit void *alloc_low_page(unsigned long *phys) +static __ref void *alloc_low_page(unsigned long *phys) { unsigned long pfn = table_end++; void *adr; @@ -262,7 +262,7 @@ static __meminit void *alloc_low_page(unsigned long *phys) return adr; } -static __meminit void unmap_low_page(void *adr) +static __ref void unmap_low_page(void *adr) { if (after_bootmem) return; -- cgit v1.2.3 From 3a6ddd5f18405ca92e004416af8ed44b9c9783d7 Mon Sep 17 00:00:00 2001 From: Alok Kataria Date: Thu, 21 Aug 2008 11:32:26 -0700 Subject: x86: fix VMI for early params while fixing a different bug i moved the call to vmi_init before early params could be parsed. This broke the vmi specific commandline parameters. Fix that, by moving vmi initialization after kernel has got a chance to parse early parameters. Signed-off-by: Alok N Kataria Signed-off-by: Ingo Molnar --- arch/x86/kernel/setup.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index a4656adab53..362d4e7f2d3 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -604,14 +604,6 @@ void __init setup_arch(char **cmdline_p) early_cpu_init(); early_ioremap_init(); -#if defined(CONFIG_VMI) && defined(CONFIG_X86_32) - /* - * Must be before kernel pagetables are setup - * or fixmap area is touched. - */ - vmi_init(); -#endif - ROOT_DEV = old_decode_dev(boot_params.hdr.root_dev); screen_info = boot_params.screen_info; edid_info = boot_params.edid_info; @@ -678,6 +670,14 @@ void __init setup_arch(char **cmdline_p) parse_early_param(); +#if defined(CONFIG_VMI) && defined(CONFIG_X86_32) + /* + * Must be before kernel pagetables are setup + * or fixmap area is touched. + */ + vmi_init(); +#endif + /* after early param, so could get panic from serial */ reserve_early_setup_data(); -- cgit v1.2.3 From c4bd1fdab0deec0f69aeabab22075cb22ac8ad44 Mon Sep 17 00:00:00 2001 From: Marcin Slusarz Date: Thu, 21 Aug 2008 20:49:05 +0200 Subject: x86: fix section mismatch warning - uv_cpu_init WARNING: vmlinux.o(.cpuinit.text+0x3cc4): Section mismatch in reference from the function uv_cpu_init() to the function .init.text:uv_system_init() The function __cpuinit uv_cpu_init() references a function __init uv_system_init(). If uv_system_init is only used by uv_cpu_init then annotate uv_system_init with a matching annotation. uv_system_init was ment to be called only once, so do it from codepath (native_smp_prepare_cpus) which is called once, right before activation of other cpus (smp_init). Note: old code relied on uv_node_to_blade being initialized to 0, but it'a not initialized from anywhere. Signed-off-by: Marcin Slusarz Acked-by: Jack Steiner Signed-off-by: Ingo Molnar --- arch/x86/kernel/genx2apic_uv_x.c | 8 +++++--- arch/x86/kernel/smpboot.c | 3 +++ 2 files changed, 8 insertions(+), 3 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/genx2apic_uv_x.c b/arch/x86/kernel/genx2apic_uv_x.c index 2d7e307c777..bfa837cb16b 100644 --- a/arch/x86/kernel/genx2apic_uv_x.c +++ b/arch/x86/kernel/genx2apic_uv_x.c @@ -293,7 +293,9 @@ static __init void uv_rtc_init(void) sn_rtc_cycles_per_second = ticks_per_sec; } -static __init void uv_system_init(void) +static bool uv_system_inited; + +void __init uv_system_init(void) { union uvh_si_addr_map_config_u m_n_config; union uvh_node_id_u node_id; @@ -383,6 +385,7 @@ static __init void uv_system_init(void) map_mmr_high(max_pnode); map_config_high(max_pnode); map_mmioh_high(max_pnode); + uv_system_inited = true; } /* @@ -391,8 +394,7 @@ static __init void uv_system_init(void) */ void __cpuinit uv_cpu_init(void) { - if (!uv_node_to_blade) - uv_system_init(); + BUG_ON(!uv_system_inited); uv_blade_info[uv_numa_blade_id()].nr_online_cpus++; diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c index e139e617f42..7985c5b3f91 100644 --- a/arch/x86/kernel/smpboot.c +++ b/arch/x86/kernel/smpboot.c @@ -1221,6 +1221,9 @@ void __init native_smp_prepare_cpus(unsigned int max_cpus) printk(KERN_INFO "CPU%d: ", 0); print_cpu_info(&cpu_data(0)); setup_boot_clock(); + + if (is_uv_system()) + uv_system_init(); out: preempt_enable(); } -- cgit v1.2.3 From 9754a5b840a209bc1f192d59f63e81b698a55ac8 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Fri, 22 Aug 2008 08:22:23 +0200 Subject: x86: work around MTRR mask setting, v2 improve the debug printout: - make it actually display something - print it only once would be nice to have a WARN_ONCE() facility, to feed such things to kerneloops.org. Signed-off-by: Ingo Molnar --- arch/x86/kernel/cpu/mtrr/generic.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/cpu/mtrr/generic.c b/arch/x86/kernel/cpu/mtrr/generic.c index 43102e03e2d..cb7d3b6a80e 100644 --- a/arch/x86/kernel/cpu/mtrr/generic.c +++ b/arch/x86/kernel/cpu/mtrr/generic.c @@ -401,7 +401,12 @@ static void generic_get_mtrr(unsigned int reg, unsigned long *base, tmp |= ~((1<<(hi - 1)) - 1); if (tmp != mask_lo) { - WARN_ON("mtrr: your BIOS has set up an incorrect mask, fixing it up.\n"); + static int once = 1; + + if (once) { + printk(KERN_INFO "mtrr: your BIOS has set up an incorrect mask, fixing it up.\n"); + once = 0; + } mask_lo = tmp; } } -- cgit v1.2.3 From 9b4e27b52853c5da77e61a4e36fbc40688b7a829 Mon Sep 17 00:00:00 2001 From: Robert Richter Date: Fri, 22 Aug 2008 20:23:37 +0200 Subject: x86: fix: do not run code in amd_bus.c on non-AMD CPUs Jan Beulich wrote: > Even worse - this would even try to access the MSR on non-AMD CPUs > (currently probably prevented just by the fact that only AMD ones use > family values of 0x10 or higher). This patch adds cpu vendor check to the postcore_initcalls. Reported-by: Jan Beulich Signed-off-by: Robert Richter Signed-off-by: Ingo Molnar --- arch/x86/pci/amd_bus.c | 19 ++++++++++++++++--- 1 file changed, 16 insertions(+), 3 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/pci/amd_bus.c b/arch/x86/pci/amd_bus.c index dbf53236971..4a6f1a6a3aa 100644 --- a/arch/x86/pci/amd_bus.c +++ b/arch/x86/pci/amd_bus.c @@ -555,9 +555,11 @@ static int __init early_fill_mp_bus_info(void) return 0; } -postcore_initcall(early_fill_mp_bus_info); +#else /* !CONFIG_X86_64 */ -#endif +static int __init early_fill_mp_bus_info(void) { return 0; } + +#endif /* !CONFIG_X86_64 */ /* common 32/64 bit code */ @@ -583,4 +585,15 @@ static int __init enable_pci_io_ecs(void) return 0; } -postcore_initcall(enable_pci_io_ecs); +static int __init amd_postcore_init(void) +{ + if (boot_cpu_data.x86_vendor != X86_VENDOR_AMD) + return 0; + + early_fill_mp_bus_info(); + enable_pci_io_ecs(); + + return 0; +} + +postcore_initcall(amd_postcore_init); -- cgit v1.2.3 From 91ede005d72df60d6b3f252be177a4743a6aa46a Mon Sep 17 00:00:00 2001 From: Robert Richter Date: Fri, 22 Aug 2008 20:23:38 +0200 Subject: x86: fix: make PCI ECS for AMD CPUs hotplug capable Until now, PCI ECS setup was performed at boot time only and for cpus that are enabled then. This patch fixes this and adds cpu hotplug. Tests sequence (check if ECS bit is set when bringing cpu online again): # ( perl -e 'sysseek(STDIN, 0xC001001F, 0)'; hexdump -n 8 -e '2/4 "%08x " "\n"' ) < /dev/cpu/1/msr 00000008 00404010 # ( perl -e 'sysseek(STDOUT, 0xC001001F, 0); print pack "l*", 8, 0x00400010' ) > /dev/cpu/1/msr # ( perl -e 'sysseek(STDIN, 0xC001001F, 0)'; hexdump -n 8 -e '2/4 "%08x " "\n"' ) < /dev/cpu/1/msr 00000008 00400010 # echo 0 > /sys/devices/system/cpu/cpu1/online # echo 1 > /sys/devices/system/cpu/cpu1/online # ( perl -e 'sysseek(STDIN, 0xC001001F, 0)'; hexdump -n 8 -e '2/4 "%08x " "\n"' ) < /dev/cpu/1/msr 00000008 00404010 Reported-by: Yinghai Lu Signed-off-by: Robert Richter Signed-off-by: Ingo Molnar --- arch/x86/pci/amd_bus.c | 35 +++++++++++++++++++++++++++++++---- 1 file changed, 31 insertions(+), 4 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/pci/amd_bus.c b/arch/x86/pci/amd_bus.c index 4a6f1a6a3aa..6a0fca78c36 100644 --- a/arch/x86/pci/amd_bus.c +++ b/arch/x86/pci/amd_bus.c @@ -1,6 +1,7 @@ #include #include #include +#include #include "pci.h" #ifdef CONFIG_X86_64 @@ -565,7 +566,7 @@ static int __init early_fill_mp_bus_info(void) { return 0; } #define ENABLE_CF8_EXT_CFG (1ULL << 46) -static void enable_pci_io_ecs_per_cpu(void *unused) +static void enable_pci_io_ecs(void *unused) { u64 reg; rdmsrl(MSR_AMD64_NB_CFG, reg); @@ -575,13 +576,39 @@ static void enable_pci_io_ecs_per_cpu(void *unused) } } -static int __init enable_pci_io_ecs(void) +static int __cpuinit amd_cpu_notify(struct notifier_block *self, + unsigned long action, void *hcpu) { + int cpu = (long)hcpu; + switch(action) { + case CPU_ONLINE: + case CPU_ONLINE_FROZEN: + smp_call_function_single(cpu, enable_pci_io_ecs, NULL, 0); + break; + default: + break; + } + return NOTIFY_OK; +} + +static struct notifier_block __cpuinitdata amd_cpu_notifier = { + .notifier_call = amd_cpu_notify, +}; + +static int __init pci_io_ecs_init(void) +{ + int cpu; + /* assume all cpus from fam10h have IO ECS */ if (boot_cpu_data.x86 < 0x10) return 0; - on_each_cpu(enable_pci_io_ecs_per_cpu, NULL, 1); + + register_cpu_notifier(&amd_cpu_notifier); + for_each_online_cpu(cpu) + amd_cpu_notify(&amd_cpu_notifier, (unsigned long)CPU_ONLINE, + (void *)(long)cpu); pci_probe |= PCI_HAS_IO_ECS; + return 0; } @@ -591,7 +618,7 @@ static int __init amd_postcore_init(void) return 0; early_fill_mp_bus_info(); - enable_pci_io_ecs(); + pci_io_ecs_init(); return 0; } -- cgit v1.2.3 From 8735728ef8dc935c4fb351f913758fdbb62c308d Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Fri, 22 Aug 2008 22:23:09 +0200 Subject: x86 MCE: Fix CPU hotplug problem with multiple multicore AMD CPUs During CPU hot-remove the sysfs directory created by threshold_create_bank(), defined in arch/x86/kernel/cpu/mcheck/mce_amd_64.c, has to be removed before its parent directory, created by mce_create_device(), defined in arch/x86/kernel/cpu/mcheck/mce_64.c . Moreover, when the CPU in question is hotplugged again, obviously the latter has to be created before the former. At present, the right ordering is not enforced, because all of these operations are carried out by CPU hotplug notifiers which are not appropriately ordered with respect to each other. This leads to serious problems on systems with two or more multicore AMD CPUs, among other things during suspend and hibernation. Fix the problem by placing threshold bank CPU hotplug callbacks in mce_cpu_callback(), so that they are invoked at the right places, if defined. Additionally, use kobject_del() to remove the sysfs directory associated with the kobject created by kobject_create_and_add() in threshold_create_bank(), to prevent the kernel from crashing during CPU hotplug operations on systems with two or more multicore AMD CPUs. This patch fixes bug #11337. Signed-off-by: Rafael J. Wysocki Acked-by: Andi Kleen Tested-by: Mark Langsdorf Signed-off-by: Ingo Molnar --- arch/x86/kernel/cpu/mcheck/mce_64.c | 5 +++++ arch/x86/kernel/cpu/mcheck/mce_amd_64.c | 18 +++++------------- 2 files changed, 10 insertions(+), 13 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/cpu/mcheck/mce_64.c b/arch/x86/kernel/cpu/mcheck/mce_64.c index 65a339678ec..726a5fcdf34 100644 --- a/arch/x86/kernel/cpu/mcheck/mce_64.c +++ b/arch/x86/kernel/cpu/mcheck/mce_64.c @@ -759,6 +759,7 @@ static struct sysdev_class mce_sysclass = { }; DEFINE_PER_CPU(struct sys_device, device_mce); +void (*threshold_cpu_callback)(unsigned long action, unsigned int cpu) __cpuinitdata; /* Why are there no generic functions for this? */ #define ACCESSOR(name, var, start) \ @@ -883,9 +884,13 @@ static int __cpuinit mce_cpu_callback(struct notifier_block *nfb, case CPU_ONLINE: case CPU_ONLINE_FROZEN: mce_create_device(cpu); + if (threshold_cpu_callback) + threshold_cpu_callback(action, cpu); break; case CPU_DEAD: case CPU_DEAD_FROZEN: + if (threshold_cpu_callback) + threshold_cpu_callback(action, cpu); mce_remove_device(cpu); break; } diff --git a/arch/x86/kernel/cpu/mcheck/mce_amd_64.c b/arch/x86/kernel/cpu/mcheck/mce_amd_64.c index 88736cadbaa..5eb390a4b2e 100644 --- a/arch/x86/kernel/cpu/mcheck/mce_amd_64.c +++ b/arch/x86/kernel/cpu/mcheck/mce_amd_64.c @@ -628,6 +628,7 @@ static void threshold_remove_bank(unsigned int cpu, int bank) deallocate_threshold_block(cpu, bank); free_out: + kobject_del(b->kobj); kobject_put(b->kobj); kfree(b); per_cpu(threshold_banks, cpu)[bank] = NULL; @@ -645,14 +646,11 @@ static void threshold_remove_device(unsigned int cpu) } /* get notified when a cpu comes on/off */ -static int __cpuinit threshold_cpu_callback(struct notifier_block *nfb, - unsigned long action, void *hcpu) +static void __cpuinit amd_64_threshold_cpu_callback(unsigned long action, + unsigned int cpu) { - /* cpu was unsigned int to begin with */ - unsigned int cpu = (unsigned long)hcpu; - if (cpu >= NR_CPUS) - goto out; + return; switch (action) { case CPU_ONLINE: @@ -666,14 +664,8 @@ static int __cpuinit threshold_cpu_callback(struct notifier_block *nfb, default: break; } - out: - return NOTIFY_OK; } -static struct notifier_block threshold_cpu_notifier __cpuinitdata = { - .notifier_call = threshold_cpu_callback, -}; - static __init int threshold_init_device(void) { unsigned lcpu = 0; @@ -684,7 +676,7 @@ static __init int threshold_init_device(void) if (err) return err; } - register_hotcpu_notifier(&threshold_cpu_notifier); + threshold_cpu_callback = amd_64_threshold_cpu_callback; return 0; } -- cgit v1.2.3 From 7a8fc9b248e77a4eab0613acf30a6811799786b3 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Sun, 17 Aug 2008 17:36:59 +0300 Subject: removed unused #include 's This patch lets the files using linux/version.h match the files that #include it. Signed-off-by: Adrian Bunk Signed-off-by: Linus Torvalds --- arch/x86/mach-rdc321x/platform.c | 1 - 1 file changed, 1 deletion(-) (limited to 'arch/x86') diff --git a/arch/x86/mach-rdc321x/platform.c b/arch/x86/mach-rdc321x/platform.c index a037041817c..4f4e50c3ad3 100644 --- a/arch/x86/mach-rdc321x/platform.c +++ b/arch/x86/mach-rdc321x/platform.c @@ -25,7 +25,6 @@ #include #include #include -#include #include #include -- cgit v1.2.3 From 060700b571717c997a2ea5e2049b848fa248ee13 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sun, 24 Aug 2008 11:52:06 -0700 Subject: x86: do not enable TSC notifier if we don't need it Impact: crash on non-TSC-equipped CPUs Don't enable the TSC notifier if we *either*: 1. don't have a CPU, or 2. have a CPU with constant TSC. In either of those cases, the notifier is either damaging (1) or useless(2). From: Linus Torvalds Signed-off-by: H. Peter Anvin --- arch/x86/kernel/tsc.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'arch/x86') diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c index 46af7167673..9bed5cae4bd 100644 --- a/arch/x86/kernel/tsc.c +++ b/arch/x86/kernel/tsc.c @@ -325,6 +325,10 @@ static struct notifier_block time_cpufreq_notifier_block = { static int __init cpufreq_tsc(void) { + if (!cpu_has_tsc) + return 0; + if (boot_cpu_has(X86_FEATURE_CONSTANT_TSC)) + return 0; cpufreq_register_notifier(&time_cpufreq_notifier_block, CPUFREQ_TRANSITION_NOTIFIER); return 0; -- cgit v1.2.3 From a2bd7274b47124d2fc4dfdb8c0591f545ba749dd Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Mon, 25 Aug 2008 00:56:08 -0700 Subject: x86: fix HPET regression in 2.6.26 versus 2.6.25, check hpet against BAR, v3 David Witbrodt tracked down (and bisected) a hpet bootup hang on his system to the following problem: a BIOS bug made the hpet device visible as a generic PCI device. If e820 reserved entries happen to be registered first in the resource tree [which v2.6.26 started doing], then the PCI code will reallocate that device's BAR to some other address - breaking timer IRQs and hanging the system. ( Normally hpet devices are hidden by the BIOS from the OS's PCI discovery via chipset magic. Sometimes the hpet is not a PCI device at all. ) Solve this fundamental fragility by making non-PCI platform drivers insert resources into the resource tree even if it overlaps the e820 reserved entry, to keep the resource manager from updating the BAR. Also do these checks for the ioapic and mmconfig addresses, and emit a warning if this happens. Bisected-by: David Witbrodt Signed-off-by: Yinghai Lu Tested-by: David Witbrodt Signed-off-by: Ingo Molnar --- arch/x86/pci/i386.c | 78 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 78 insertions(+) (limited to 'arch/x86') diff --git a/arch/x86/pci/i386.c b/arch/x86/pci/i386.c index 5807d1bc73f..d765da91384 100644 --- a/arch/x86/pci/i386.c +++ b/arch/x86/pci/i386.c @@ -31,8 +31,11 @@ #include #include #include +#include #include +#include +#include #include "pci.h" @@ -77,6 +80,77 @@ pcibios_align_resource(void *data, struct resource *res, } EXPORT_SYMBOL(pcibios_align_resource); +static int check_res_with_valid(struct pci_dev *dev, struct resource *res) +{ + unsigned long base; + unsigned long size; + int i; + + base = res->start; + size = (res->start == 0 && res->end == res->start) ? 0 : + (res->end - res->start + 1); + + if (!base || !size) + return 0; + +#ifdef CONFIG_HPET_TIMER + /* for hpet */ + if (base == hpet_address && (res->flags & IORESOURCE_MEM)) { + dev_info(&dev->dev, "BAR has HPET at %08lx-%08lx\n", + base, base + size - 1); + return 1; + } +#endif + +#ifdef CONFIG_X86_IO_APIC + for (i = 0; i < nr_ioapics; i++) { + unsigned long ioapic_phys = mp_ioapics[i].mp_apicaddr; + + if (base == ioapic_phys && (res->flags & IORESOURCE_MEM)) { + dev_info(&dev->dev, "BAR has ioapic at %08lx-%08lx\n", + base, base + size - 1); + return 1; + } + } +#endif + +#ifdef CONFIG_PCI_MMCONFIG + for (i = 0; i < pci_mmcfg_config_num; i++) { + unsigned long addr; + + addr = pci_mmcfg_config[i].address; + if (base == addr && (res->flags & IORESOURCE_MEM)) { + dev_info(&dev->dev, "BAR has MMCONFIG at %08lx-%08lx\n", + base, base + size - 1); + return 1; + } + } +#endif + + return 0; +} + +static int check_platform(struct pci_dev *dev, struct resource *res) +{ + struct resource *root = NULL; + + /* + * forcibly insert it into the + * resource tree + */ + if (res->flags & IORESOURCE_MEM) + root = &iomem_resource; + else if (res->flags & IORESOURCE_IO) + root = &ioport_resource; + + if (root && check_res_with_valid(dev, res)) { + insert_resource(root, res); + + return 1; + } + + return 0; +} /* * Handle resources of PCI devices. If the world were perfect, we could * just allocate all the resource regions and do nothing more. It isn't. @@ -128,6 +202,8 @@ static void __init pcibios_allocate_bus_resources(struct list_head *bus_list) pr = pci_find_parent_resource(dev, r); if (!r->start || !pr || request_resource(pr, r) < 0) { + if (check_platform(dev, r)) + continue; dev_err(&dev->dev, "BAR %d: can't " "allocate resource\n", idx); /* @@ -171,6 +247,8 @@ static void __init pcibios_allocate_resources(int pass) r->flags, disabled, pass); pr = pci_find_parent_resource(dev, r); if (!pr || request_resource(pr, r) < 0) { + if (check_platform(dev, r)) + continue; dev_err(&dev->dev, "BAR %d: can't " "allocate resource\n", idx); /* We'll assign a new address later */ -- cgit v1.2.3 From 52a8968ce95da8469ba0a9b3e4010fe31caf77a3 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Mon, 25 Aug 2008 13:35:06 +0200 Subject: x86: fix cpufreq + sched_clock() regression I noticed that my sched_clock() was slow on a number of machine, so I started looking at cpufreq. The below seems to fix the problem for me. Signed-off-by: Ingo Molnar --- arch/x86/kernel/tsc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c index 9bed5cae4bd..8e786b0d665 100644 --- a/arch/x86/kernel/tsc.c +++ b/arch/x86/kernel/tsc.c @@ -314,7 +314,7 @@ static int time_cpufreq_notifier(struct notifier_block *nb, unsigned long val, mark_tsc_unstable("cpufreq changes"); } - set_cyc2ns_scale(tsc_khz_ref, freq->cpu); + set_cyc2ns_scale(tsc_khz, freq->cpu); return 0; } -- cgit v1.2.3 From c6f31932d0a1d2b13952f506ebc92675e2d8df80 Mon Sep 17 00:00:00 2001 From: "H. Peter Anvin" Date: Mon, 25 Aug 2008 17:27:21 -0700 Subject: x86: msr: propagate errors from smp_call_function_single() Propagate error (-ENXIO) from smp_call_function_single(). These errors can happen when a CPU is unplugged while the MSR driver is open. Signed-off-by: H. Peter Anvin --- arch/x86/kernel/msr.c | 14 ++++++++++---- arch/x86/lib/msr-on-cpu.c | 22 ++++++++++++---------- 2 files changed, 22 insertions(+), 14 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/msr.c b/arch/x86/kernel/msr.c index e4393808688..9c34a1005db 100644 --- a/arch/x86/kernel/msr.c +++ b/arch/x86/kernel/msr.c @@ -79,8 +79,11 @@ static ssize_t msr_read(struct file *file, char __user *buf, for (; count; count -= 8) { err = rdmsr_safe_on_cpu(cpu, reg, &data[0], &data[1]); - if (err) - return -EIO; + if (err) { + if (err == -EFAULT) /* Fix idiotic error code */ + err = -EIO; + return err; + } if (copy_to_user(tmp, &data, 8)) return -EFAULT; tmp += 2; @@ -105,8 +108,11 @@ static ssize_t msr_write(struct file *file, const char __user *buf, if (copy_from_user(&data, tmp, 8)) return -EFAULT; err = wrmsr_safe_on_cpu(cpu, reg, data[0], data[1]); - if (err) - return -EIO; + if (err) { + if (err == -EFAULT) /* Fix idiotic error code */ + err = -EIO; + return err; + } tmp += 2; } diff --git a/arch/x86/lib/msr-on-cpu.c b/arch/x86/lib/msr-on-cpu.c index d5a2b39f882..01b868ba82f 100644 --- a/arch/x86/lib/msr-on-cpu.c +++ b/arch/x86/lib/msr-on-cpu.c @@ -30,10 +30,11 @@ static int _rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h, int safe) rv.msr_no = msr_no; if (safe) { - smp_call_function_single(cpu, __rdmsr_safe_on_cpu, &rv, 1); - err = rv.err; + err = smp_call_function_single(cpu, __rdmsr_safe_on_cpu, + &rv, 1); + err = err ? err : rv.err; } else { - smp_call_function_single(cpu, __rdmsr_on_cpu, &rv, 1); + err = smp_call_function_single(cpu, __rdmsr_on_cpu, &rv, 1); } *l = rv.l; *h = rv.h; @@ -64,23 +65,24 @@ static int _wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h, int safe) rv.l = l; rv.h = h; if (safe) { - smp_call_function_single(cpu, __wrmsr_safe_on_cpu, &rv, 1); - err = rv.err; + err = smp_call_function_single(cpu, __wrmsr_safe_on_cpu, + &rv, 1); + err = err ? err : rv.err; } else { - smp_call_function_single(cpu, __wrmsr_on_cpu, &rv, 1); + err = smp_call_function_single(cpu, __wrmsr_on_cpu, &rv, 1); } return err; } -void wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h) +int wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h) { - _wrmsr_on_cpu(cpu, msr_no, l, h, 0); + return _wrmsr_on_cpu(cpu, msr_no, l, h, 0); } -void rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h) +int rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h) { - _rdmsr_on_cpu(cpu, msr_no, l, h, 0); + return _rdmsr_on_cpu(cpu, msr_no, l, h, 0); } /* These "safe" variants are slower and should be used when the target MSR -- cgit v1.2.3 From 4b46ca701bdcdc19fcf32823f9fcabf8236e4e78 Mon Sep 17 00:00:00 2001 From: "H. Peter Anvin" Date: Mon, 25 Aug 2008 17:28:20 -0700 Subject: x86: cpuid: propagate error from smp_call_function_single() Propagate error (-ENXIO) from smp_call_function_single() in the CPUID driver. This can happen when a CPU is unplugged while the CPUID driver is open. Signed-off-by: H. Peter Anvin --- arch/x86/kernel/cpuid.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/cpuid.c b/arch/x86/kernel/cpuid.c index 14b11b3be31..23e8316c835 100644 --- a/arch/x86/kernel/cpuid.c +++ b/arch/x86/kernel/cpuid.c @@ -89,6 +89,7 @@ static ssize_t cpuid_read(struct file *file, char __user *buf, struct cpuid_regs cmd; int cpu = iminor(file->f_path.dentry->d_inode); u64 pos = *ppos; + int err; if (count % 16) return -EINVAL; /* Invalid chunk size */ @@ -96,7 +97,9 @@ static ssize_t cpuid_read(struct file *file, char __user *buf, for (; count; count -= 16) { cmd.eax = pos; cmd.ecx = pos >> 32; - smp_call_function_single(cpu, cpuid_smp_cpuid, &cmd, 1); + err = smp_call_function_single(cpu, cpuid_smp_cpuid, &cmd, 1); + if (err) + return err; if (copy_to_user(tmp, &cmd, 16)) return -EFAULT; tmp += 16; -- cgit v1.2.3 From 85f1cb60157e06d9e8996b02fad9ba6964523d75 Mon Sep 17 00:00:00 2001 From: "H. Peter Anvin" Date: Mon, 25 Aug 2008 17:34:27 -0700 Subject: x86: msr: correct return value on partial operations Return the correct return value when the MSR driver partially completes a request (we should return the number of bytes actually read or written, instead of the error code.) Signed-off-by: H. Peter Anvin --- arch/x86/kernel/msr.c | 28 ++++++++++++++++++---------- 1 file changed, 18 insertions(+), 10 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/msr.c b/arch/x86/kernel/msr.c index 9c34a1005db..2e2af5d1819 100644 --- a/arch/x86/kernel/msr.c +++ b/arch/x86/kernel/msr.c @@ -72,7 +72,8 @@ static ssize_t msr_read(struct file *file, char __user *buf, u32 data[2]; u32 reg = *ppos; int cpu = iminor(file->f_path.dentry->d_inode); - int err; + int err = 0; + ssize_t bytes = 0; if (count % 8) return -EINVAL; /* Invalid chunk size */ @@ -82,14 +83,17 @@ static ssize_t msr_read(struct file *file, char __user *buf, if (err) { if (err == -EFAULT) /* Fix idiotic error code */ err = -EIO; - return err; + break; + } + if (copy_to_user(tmp, &data, 8)) { + err = -EFAULT; + break; } - if (copy_to_user(tmp, &data, 8)) - return -EFAULT; tmp += 2; + bytes += 8; } - return ((char __user *)tmp) - buf; + return bytes ? bytes : err; } static ssize_t msr_write(struct file *file, const char __user *buf, @@ -99,24 +103,28 @@ static ssize_t msr_write(struct file *file, const char __user *buf, u32 data[2]; u32 reg = *ppos; int cpu = iminor(file->f_path.dentry->d_inode); - int err; + int err = 0; + ssize_t bytes = 0; if (count % 8) return -EINVAL; /* Invalid chunk size */ for (; count; count -= 8) { - if (copy_from_user(&data, tmp, 8)) - return -EFAULT; + if (copy_from_user(&data, tmp, 8)) { + err = -EFAULT; + break; + } err = wrmsr_safe_on_cpu(cpu, reg, data[0], data[1]); if (err) { if (err == -EFAULT) /* Fix idiotic error code */ err = -EIO; - return err; + break; } tmp += 2; + bytes += 8; } - return ((char __user *)tmp) - buf; + return bytes ? bytes : err; } static int msr_open(struct inode *inode, struct file *file) -- cgit v1.2.3 From 9ea2b82ed6265a31f9a84886d74d8a2ef01b27c8 Mon Sep 17 00:00:00 2001 From: "H. Peter Anvin" Date: Mon, 25 Aug 2008 17:35:25 -0700 Subject: x86: cpuid: correct return value on partial operations Return the correct return value when the CPUID driver partially completes a request (we should return the number of bytes actually read or written, instead of the error code.) Signed-off-by: H. Peter Anvin --- arch/x86/kernel/cpuid.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/kernel/cpuid.c b/arch/x86/kernel/cpuid.c index 23e8316c835..8e9cd6a8ec1 100644 --- a/arch/x86/kernel/cpuid.c +++ b/arch/x86/kernel/cpuid.c @@ -89,7 +89,8 @@ static ssize_t cpuid_read(struct file *file, char __user *buf, struct cpuid_regs cmd; int cpu = iminor(file->f_path.dentry->d_inode); u64 pos = *ppos; - int err; + ssize_t bytes = 0; + int err = 0; if (count % 16) return -EINVAL; /* Invalid chunk size */ @@ -99,14 +100,17 @@ static ssize_t cpuid_read(struct file *file, char __user *buf, cmd.ecx = pos >> 32; err = smp_call_function_single(cpu, cpuid_smp_cpuid, &cmd, 1); if (err) - return err; - if (copy_to_user(tmp, &cmd, 16)) - return -EFAULT; + break; + if (copy_to_user(tmp, &cmd, 16)) { + err = -EFAULT; + break; + } tmp += 16; + bytes += 16; *ppos = ++pos; } - return tmp - buf; + return bytes ? bytes : err; } static int cpuid_open(struct inode *inode, struct file *file) -- cgit v1.2.3 From c1b362e3b4d331a63915b268a33207311a439d60 Mon Sep 17 00:00:00 2001 From: "H. Peter Anvin" Date: Mon, 25 Aug 2008 15:06:35 -0700 Subject: x86: update defconfigs Enable some option commonly used by testers in defconfig, including some very common device drivers and network boot support. defconfig is still not meant to be a kitchen-sink configuration. Signed-off-by: H. Peter Anvin --- arch/x86/configs/i386_defconfig | 303 ++++++++++++++++++++++---------------- arch/x86/configs/x86_64_defconfig | 258 +++++++++++++++++++------------- 2 files changed, 334 insertions(+), 227 deletions(-) (limited to 'arch/x86') diff --git a/arch/x86/configs/i386_defconfig b/arch/x86/configs/i386_defconfig index 4d73f53287b..104275e191a 100644 --- a/arch/x86/configs/i386_defconfig +++ b/arch/x86/configs/i386_defconfig @@ -1,13 +1,13 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.26-rc1 -# Sun May 4 19:59:02 2008 +# Linux kernel version: 2.6.27-rc4 +# Mon Aug 25 15:04:00 2008 # # CONFIG_64BIT is not set CONFIG_X86_32=y # CONFIG_X86_64 is not set CONFIG_X86=y -CONFIG_DEFCONFIG_LIST="arch/x86/configs/i386_defconfig" +CONFIG_ARCH_DEFCONFIG="arch/x86/configs/i386_defconfig" # CONFIG_GENERIC_LOCKBREAK is not set CONFIG_GENERIC_TIME=y CONFIG_GENERIC_CMOS_UPDATE=y @@ -53,6 +53,7 @@ CONFIG_X86_HT=y CONFIG_X86_BIOS_REBOOT=y CONFIG_X86_TRAMPOLINE=y CONFIG_KTIME_SCALAR=y +CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" # # General setup @@ -82,6 +83,7 @@ CONFIG_CGROUPS=y CONFIG_CGROUP_NS=y # CONFIG_CGROUP_DEVICE is not set CONFIG_CPUSETS=y +CONFIG_HAVE_UNSTABLE_SCHED_CLOCK=y CONFIG_GROUP_SCHED=y CONFIG_FAIR_GROUP_SCHED=y # CONFIG_RT_GROUP_SCHED is not set @@ -105,7 +107,6 @@ CONFIG_SYSCTL=y # CONFIG_EMBEDDED is not set CONFIG_UID16=y CONFIG_SYSCTL_SYSCALL=y -CONFIG_SYSCTL_SYSCALL_CHECK=y CONFIG_KALLSYMS=y CONFIG_KALLSYMS_ALL=y CONFIG_KALLSYMS_EXTRA_PASS=y @@ -113,6 +114,7 @@ CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y CONFIG_ELF_CORE=y +CONFIG_PCSPKR_PLATFORM=y # CONFIG_COMPAT_BRK is not set CONFIG_BASE_FULL=y CONFIG_FUTEX=y @@ -132,27 +134,35 @@ CONFIG_MARKERS=y # CONFIG_OPROFILE is not set CONFIG_HAVE_OPROFILE=y CONFIG_KPROBES=y +CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y CONFIG_KRETPROBES=y +CONFIG_HAVE_IOREMAP_PROT=y CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y +# CONFIG_HAVE_ARCH_TRACEHOOK is not set # CONFIG_HAVE_DMA_ATTRS is not set +CONFIG_USE_GENERIC_SMP_HELPERS=y +# CONFIG_HAVE_CLK is not set CONFIG_PROC_PAGE_MONITOR=y +CONFIG_HAVE_GENERIC_DMA_COHERENT=y CONFIG_SLABINFO=y CONFIG_RT_MUTEXES=y # CONFIG_TINY_SHMEM is not set CONFIG_BASE_SMALL=0 CONFIG_MODULES=y +# CONFIG_MODULE_FORCE_LOAD is not set CONFIG_MODULE_UNLOAD=y CONFIG_MODULE_FORCE_UNLOAD=y # CONFIG_MODVERSIONS is not set # CONFIG_MODULE_SRCVERSION_ALL is not set -# CONFIG_KMOD is not set +CONFIG_KMOD=y CONFIG_STOP_MACHINE=y CONFIG_BLOCK=y # CONFIG_LBD is not set CONFIG_BLK_DEV_IO_TRACE=y # CONFIG_LSF is not set CONFIG_BLK_DEV_BSG=y +# CONFIG_BLK_DEV_INTEGRITY is not set # # IO Schedulers @@ -176,19 +186,17 @@ CONFIG_NO_HZ=y CONFIG_HIGH_RES_TIMERS=y CONFIG_GENERIC_CLOCKEVENTS_BUILD=y CONFIG_SMP=y +CONFIG_X86_FIND_SMP_CONFIG=y +CONFIG_X86_MPPARSE=y CONFIG_X86_PC=y # CONFIG_X86_ELAN is not set # CONFIG_X86_VOYAGER is not set -# CONFIG_X86_NUMAQ is not set -# CONFIG_X86_SUMMIT is not set -# CONFIG_X86_BIGSMP is not set -# CONFIG_X86_VISWS is not set # CONFIG_X86_GENERICARCH is not set -# CONFIG_X86_ES7000 is not set -# CONFIG_X86_RDC321X is not set # CONFIG_X86_VSMP is not set +# CONFIG_X86_RDC321X is not set CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y # CONFIG_PARAVIRT_GUEST is not set +# CONFIG_MEMTEST is not set # CONFIG_M386 is not set # CONFIG_M486 is not set # CONFIG_M586 is not set @@ -215,21 +223,19 @@ CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y # CONFIG_MPSC is not set CONFIG_MCORE2=y # CONFIG_GENERIC_CPU is not set -# CONFIG_X86_GENERIC is not set +CONFIG_X86_GENERIC=y CONFIG_X86_CPU=y CONFIG_X86_CMPXCHG=y -CONFIG_X86_L1_CACHE_SHIFT=6 +CONFIG_X86_L1_CACHE_SHIFT=7 CONFIG_X86_XADD=y CONFIG_X86_WP_WORKS_OK=y CONFIG_X86_INVLPG=y CONFIG_X86_BSWAP=y CONFIG_X86_POPAD_OK=y -CONFIG_X86_GOOD_APIC=y CONFIG_X86_INTEL_USERCOPY=y CONFIG_X86_USE_PPRO_CHECKSUM=y -CONFIG_X86_P6_NOP=y CONFIG_X86_TSC=y -CONFIG_X86_MINIMUM_CPU_FAMILY=6 +CONFIG_X86_MINIMUM_CPU_FAMILY=4 CONFIG_X86_DEBUGCTLMSR=y CONFIG_HPET_TIMER=y CONFIG_HPET_EMULATE_RTC=y @@ -247,7 +253,7 @@ CONFIG_X86_IO_APIC=y CONFIG_VM86=y # CONFIG_TOSHIBA is not set # CONFIG_I8K is not set -# CONFIG_X86_REBOOTFIXUPS is not set +CONFIG_X86_REBOOTFIXUPS=y # CONFIG_MICROCODE is not set CONFIG_X86_MSR=y CONFIG_X86_CPUID=y @@ -256,32 +262,28 @@ CONFIG_HIGHMEM4G=y # CONFIG_HIGHMEM64G is not set CONFIG_PAGE_OFFSET=0xC0000000 CONFIG_HIGHMEM=y -CONFIG_NEED_NODE_MEMMAP_SIZE=y CONFIG_ARCH_FLATMEM_ENABLE=y CONFIG_ARCH_SPARSEMEM_ENABLE=y CONFIG_ARCH_SELECT_MEMORY_MODEL=y CONFIG_SELECT_MEMORY_MODEL=y -# CONFIG_FLATMEM_MANUAL is not set +CONFIG_FLATMEM_MANUAL=y # CONFIG_DISCONTIGMEM_MANUAL is not set -CONFIG_SPARSEMEM_MANUAL=y -CONFIG_SPARSEMEM=y -CONFIG_HAVE_MEMORY_PRESENT=y +# CONFIG_SPARSEMEM_MANUAL is not set +CONFIG_FLATMEM=y +CONFIG_FLAT_NODE_MEM_MAP=y CONFIG_SPARSEMEM_STATIC=y # CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set - -# -# Memory hotplug is currently incompatible with Software Suspend -# CONFIG_PAGEFLAGS_EXTENDED=y CONFIG_SPLIT_PTLOCK_CPUS=4 CONFIG_RESOURCES_64BIT=y CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y -# CONFIG_HIGHPTE is not set +CONFIG_HIGHPTE=y # CONFIG_MATH_EMULATION is not set CONFIG_MTRR=y -# CONFIG_X86_PAT is not set +# CONFIG_MTRR_SANITIZER is not set +CONFIG_X86_PAT=y CONFIG_EFI=y # CONFIG_IRQBALANCE is not set CONFIG_SECCOMP=y @@ -293,6 +295,7 @@ CONFIG_HZ=1000 CONFIG_SCHED_HRTICK=y CONFIG_KEXEC=y CONFIG_CRASH_DUMP=y +# CONFIG_KEXEC_JUMP is not set CONFIG_PHYSICAL_START=0x1000000 CONFIG_RELOCATABLE=y CONFIG_PHYSICAL_ALIGN=0x200000 @@ -312,6 +315,7 @@ CONFIG_PM_TRACE_RTC=y CONFIG_PM_SLEEP_SMP=y CONFIG_PM_SLEEP=y CONFIG_SUSPEND=y +# CONFIG_PM_TEST_SUSPEND is not set CONFIG_SUSPEND_FREEZER=y CONFIG_HIBERNATION=y CONFIG_PM_STD_PARTITION="" @@ -337,6 +341,7 @@ CONFIG_ACPI_THERMAL=y CONFIG_ACPI_BLACKLIST_YEAR=0 # CONFIG_ACPI_DEBUG is not set CONFIG_ACPI_EC=y +# CONFIG_ACPI_PCI_SLOT is not set CONFIG_ACPI_POWER=y CONFIG_ACPI_SYSTEM=y CONFIG_X86_PM_TIMER=y @@ -395,8 +400,8 @@ CONFIG_PCI=y # CONFIG_PCI_GOBIOS is not set # CONFIG_PCI_GOMMCONFIG is not set # CONFIG_PCI_GODIRECT is not set -CONFIG_PCI_GOANY=y # CONFIG_PCI_GOOLPC is not set +CONFIG_PCI_GOANY=y CONFIG_PCI_BIOS=y CONFIG_PCI_DIRECT=y CONFIG_PCI_MMCONFIG=y @@ -448,10 +453,6 @@ CONFIG_HOTPLUG_PCI=y CONFIG_BINFMT_ELF=y # CONFIG_BINFMT_AOUT is not set CONFIG_BINFMT_MISC=y - -# -# Networking -# CONFIG_NET=y # @@ -475,7 +476,10 @@ CONFIG_IP_FIB_HASH=y CONFIG_IP_MULTIPLE_TABLES=y CONFIG_IP_ROUTE_MULTIPATH=y CONFIG_IP_ROUTE_VERBOSE=y -# CONFIG_IP_PNP is not set +CONFIG_IP_PNP=y +CONFIG_IP_PNP_DHCP=y +CONFIG_IP_PNP_BOOTP=y +CONFIG_IP_PNP_RARP=y # CONFIG_NET_IPIP is not set # CONFIG_NET_IPGRE is not set CONFIG_IP_MROUTE=y @@ -618,7 +622,6 @@ CONFIG_NET_SCHED=y # CONFIG_NET_SCH_HTB is not set # CONFIG_NET_SCH_HFSC is not set # CONFIG_NET_SCH_PRIO is not set -# CONFIG_NET_SCH_RR is not set # CONFIG_NET_SCH_RED is not set # CONFIG_NET_SCH_SFQ is not set # CONFIG_NET_SCH_TEQL is not set @@ -680,28 +683,19 @@ CONFIG_FIB_RULES=y CONFIG_CFG80211=y CONFIG_NL80211=y CONFIG_WIRELESS_EXT=y +CONFIG_WIRELESS_EXT_SYSFS=y CONFIG_MAC80211=y # # Rate control algorithm selection # +CONFIG_MAC80211_RC_PID=y CONFIG_MAC80211_RC_DEFAULT_PID=y -# CONFIG_MAC80211_RC_DEFAULT_NONE is not set - -# -# Selecting 'y' for an algorithm will -# - -# -# build the algorithm into mac80211. -# CONFIG_MAC80211_RC_DEFAULT="pid" -CONFIG_MAC80211_RC_PID=y # CONFIG_MAC80211_MESH is not set CONFIG_MAC80211_LEDS=y # CONFIG_MAC80211_DEBUGFS is not set -# CONFIG_MAC80211_DEBUG_PACKET_ALIGNMENT is not set -# CONFIG_MAC80211_DEBUG is not set +# CONFIG_MAC80211_DEBUG_MENU is not set # CONFIG_IEEE80211 is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -717,6 +711,8 @@ CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_STANDALONE=y CONFIG_PREVENT_FIRMWARE_BUILD=y CONFIG_FW_LOADER=y +CONFIG_FIRMWARE_IN_KERNEL=y +CONFIG_EXTRA_FIRMWARE="" # CONFIG_DEBUG_DRIVER is not set CONFIG_DEBUG_DEVRES=y # CONFIG_SYS_HYPERVISOR is not set @@ -749,6 +745,7 @@ CONFIG_BLK_DEV_RAM_SIZE=16384 # CONFIG_BLK_DEV_XIP is not set # CONFIG_CDROM_PKTCDVD is not set # CONFIG_ATA_OVER_ETH is not set +# CONFIG_BLK_DEV_HD is not set CONFIG_MISC_DEVICES=y # CONFIG_IBM_ASM is not set # CONFIG_PHANTOM is not set @@ -760,10 +757,12 @@ CONFIG_MISC_DEVICES=y # CONFIG_FUJITSU_LAPTOP is not set # CONFIG_TC1100_WMI is not set # CONFIG_MSI_LAPTOP is not set +# CONFIG_COMPAL_LAPTOP is not set # CONFIG_SONY_LAPTOP is not set # CONFIG_THINKPAD_ACPI is not set # CONFIG_INTEL_MENLOW is not set # CONFIG_ENCLOSURE_SERVICES is not set +# CONFIG_HP_ILO is not set CONFIG_HAVE_IDE=y # CONFIG_IDE is not set @@ -802,12 +801,13 @@ CONFIG_SCSI_WAIT_SCAN=m # CONFIG_SCSI_SPI_ATTRS=y # CONFIG_SCSI_FC_ATTRS is not set -# CONFIG_SCSI_ISCSI_ATTRS is not set +CONFIG_SCSI_ISCSI_ATTRS=y # CONFIG_SCSI_SAS_ATTRS is not set # CONFIG_SCSI_SAS_LIBSAS is not set # CONFIG_SCSI_SRP_ATTRS is not set # CONFIG_SCSI_LOWLEVEL is not set # CONFIG_SCSI_LOWLEVEL_PCMCIA is not set +# CONFIG_SCSI_DH is not set CONFIG_ATA=y # CONFIG_ATA_NONSTANDARD is not set CONFIG_ATA_ACPI=y @@ -842,7 +842,7 @@ CONFIG_PATA_AMD=y # CONFIG_PATA_CS5536 is not set # CONFIG_PATA_CYPRESS is not set # CONFIG_PATA_EFAR is not set -# CONFIG_ATA_GENERIC is not set +CONFIG_ATA_GENERIC=y # CONFIG_PATA_HPT366 is not set # CONFIG_PATA_HPT37X is not set # CONFIG_PATA_HPT3X2N is not set @@ -852,7 +852,7 @@ CONFIG_PATA_AMD=y # CONFIG_PATA_JMICRON is not set # CONFIG_PATA_TRIFLEX is not set # CONFIG_PATA_MARVELL is not set -# CONFIG_PATA_MPIIX is not set +CONFIG_PATA_MPIIX=y CONFIG_PATA_OLDPIIX=y # CONFIG_PATA_NETCELL is not set # CONFIG_PATA_NINJA32 is not set @@ -871,6 +871,7 @@ CONFIG_PATA_OLDPIIX=y # CONFIG_PATA_SIS is not set # CONFIG_PATA_VIA is not set # CONFIG_PATA_WINBOND is not set +CONFIG_PATA_SCH=y CONFIG_MD=y CONFIG_BLK_DEV_MD=y # CONFIG_MD_LINEAR is not set @@ -894,13 +895,16 @@ CONFIG_DM_ZERO=y # # IEEE 1394 (FireWire) support # + +# +# Enable only one of the two stacks, unless you know what you are doing +# # CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set # CONFIG_I2O is not set CONFIG_MACINTOSH_DRIVERS=y CONFIG_MAC_EMUMOUSEBTN=y CONFIG_NETDEVICES=y -# CONFIG_NETDEVICES_MULTIQUEUE is not set # CONFIG_IFB is not set # CONFIG_DUMMY is not set # CONFIG_BONDING is not set @@ -910,7 +914,23 @@ CONFIG_NETDEVICES=y # CONFIG_VETH is not set # CONFIG_NET_SB1000 is not set # CONFIG_ARCNET is not set -# CONFIG_PHYLIB is not set +CONFIG_PHYLIB=y + +# +# MII PHY device drivers +# +# CONFIG_MARVELL_PHY is not set +# CONFIG_DAVICOM_PHY is not set +# CONFIG_QSEMI_PHY is not set +# CONFIG_LXT_PHY is not set +# CONFIG_CICADA_PHY is not set +# CONFIG_VITESSE_PHY is not set +# CONFIG_SMSC_PHY is not set +# CONFIG_BROADCOM_PHY is not set +# CONFIG_ICPLUS_PHY is not set +# CONFIG_REALTEK_PHY is not set +# CONFIG_FIXED_PHY is not set +# CONFIG_MDIO_BITBANG is not set CONFIG_NET_ETHERNET=y CONFIG_MII=y # CONFIG_HAPPYMEAL is not set @@ -943,10 +963,10 @@ CONFIG_FORCEDETH=y CONFIG_E100=y # CONFIG_FEALNX is not set # CONFIG_NATSEMI is not set -# CONFIG_NE2K_PCI is not set +CONFIG_NE2K_PCI=y # CONFIG_8139CP is not set CONFIG_8139TOO=y -CONFIG_8139TOO_PIO=y +# CONFIG_8139TOO_PIO is not set # CONFIG_8139TOO_TUNE_TWISTER is not set # CONFIG_8139TOO_8129 is not set # CONFIG_8139_OLD_RX_RESET is not set @@ -961,25 +981,24 @@ CONFIG_NETDEV_1000=y # CONFIG_ACENIC is not set # CONFIG_DL2K is not set CONFIG_E1000=y -# CONFIG_E1000_NAPI is not set # CONFIG_E1000_DISABLE_PACKET_SPLIT is not set -# CONFIG_E1000E is not set -# CONFIG_E1000E_ENABLED is not set +CONFIG_E1000E=y # CONFIG_IP1000 is not set # CONFIG_IGB is not set # CONFIG_NS83820 is not set # CONFIG_HAMACHI is not set # CONFIG_YELLOWFIN is not set -# CONFIG_R8169 is not set +CONFIG_R8169=y # CONFIG_SIS190 is not set # CONFIG_SKGE is not set CONFIG_SKY2=y # CONFIG_SKY2_DEBUG is not set # CONFIG_VIA_VELOCITY is not set CONFIG_TIGON3=y -# CONFIG_BNX2 is not set +CONFIG_BNX2=y # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set +# CONFIG_ATL1E is not set CONFIG_NETDEV_10000=y # CONFIG_CHELSIO_T1 is not set # CONFIG_CHELSIO_T3 is not set @@ -1019,13 +1038,14 @@ CONFIG_WLAN_80211=y # CONFIG_RTL8180 is not set # CONFIG_RTL8187 is not set # CONFIG_ADM8211 is not set +# CONFIG_MAC80211_HWSIM is not set # CONFIG_P54_COMMON is not set CONFIG_ATH5K=y # CONFIG_ATH5K_DEBUG is not set -# CONFIG_IWLWIFI is not set +# CONFIG_ATH9K is not set # CONFIG_IWLCORE is not set # CONFIG_IWLWIFI_LEDS is not set -# CONFIG_IWL4965 is not set +# CONFIG_IWLAGN is not set # CONFIG_IWL3945 is not set # CONFIG_HOSTAP is not set # CONFIG_B43 is not set @@ -1105,6 +1125,7 @@ CONFIG_MOUSE_PS2_TRACKPOINT=y # CONFIG_MOUSE_PS2_TOUCHKIT is not set # CONFIG_MOUSE_SERIAL is not set # CONFIG_MOUSE_APPLETOUCH is not set +# CONFIG_MOUSE_BCM5974 is not set # CONFIG_MOUSE_VSXXXAA is not set CONFIG_INPUT_JOYSTICK=y # CONFIG_JOYSTICK_ANALOG is not set @@ -1139,12 +1160,14 @@ CONFIG_INPUT_TOUCHSCREEN=y # CONFIG_TOUCHSCREEN_GUNZE is not set # CONFIG_TOUCHSCREEN_ELO is not set # CONFIG_TOUCHSCREEN_MTOUCH is not set +# CONFIG_TOUCHSCREEN_INEXIO is not set # CONFIG_TOUCHSCREEN_MK712 is not set # CONFIG_TOUCHSCREEN_PENMOUNT is not set # CONFIG_TOUCHSCREEN_TOUCHRIGHT is not set # CONFIG_TOUCHSCREEN_TOUCHWIN is not set # CONFIG_TOUCHSCREEN_UCB1400 is not set # CONFIG_TOUCHSCREEN_USB_COMPOSITE is not set +# CONFIG_TOUCHSCREEN_TOUCHIT213 is not set CONFIG_INPUT_MISC=y # CONFIG_INPUT_PCSPKR is not set # CONFIG_INPUT_APANEL is not set @@ -1173,6 +1196,7 @@ CONFIG_SERIO_LIBPS2=y # Character devices # CONFIG_VT=y +CONFIG_CONSOLE_TRANSLATIONS=y CONFIG_VT_CONSOLE=y CONFIG_HW_CONSOLE=y CONFIG_VT_HW_CONSOLE_BINDING=y @@ -1223,8 +1247,8 @@ CONFIG_UNIX98_PTYS=y # CONFIG_LEGACY_PTYS is not set # CONFIG_IPMI_HANDLER is not set CONFIG_HW_RANDOM=y -# CONFIG_HW_RANDOM_INTEL is not set -# CONFIG_HW_RANDOM_AMD is not set +CONFIG_HW_RANDOM_INTEL=y +CONFIG_HW_RANDOM_AMD=y CONFIG_HW_RANDOM_GEODE=y CONFIG_HW_RANDOM_VIA=y CONFIG_NVRAM=y @@ -1245,7 +1269,6 @@ CONFIG_NVRAM=y # CONFIG_CS5535_GPIO is not set # CONFIG_RAW_DRIVER is not set CONFIG_HPET=y -# CONFIG_HPET_RTC_IRQ is not set # CONFIG_HPET_MMAP is not set # CONFIG_HANGCHECK_TIMER is not set # CONFIG_TCG_TPM is not set @@ -1254,43 +1277,64 @@ CONFIG_DEVPORT=y CONFIG_I2C=y CONFIG_I2C_BOARDINFO=y # CONFIG_I2C_CHARDEV is not set +CONFIG_I2C_HELPER_AUTO=y # # I2C Hardware Bus support # + +# +# PC SMBus host controller drivers +# # CONFIG_I2C_ALI1535 is not set # CONFIG_I2C_ALI1563 is not set # CONFIG_I2C_ALI15X3 is not set # CONFIG_I2C_AMD756 is not set # CONFIG_I2C_AMD8111 is not set CONFIG_I2C_I801=y -# CONFIG_I2C_I810 is not set +# CONFIG_I2C_ISCH is not set # CONFIG_I2C_PIIX4 is not set # CONFIG_I2C_NFORCE2 is not set -# CONFIG_I2C_OCORES is not set -# CONFIG_I2C_PARPORT_LIGHT is not set -# CONFIG_I2C_PROSAVAGE is not set -# CONFIG_I2C_SAVAGE4 is not set -# CONFIG_I2C_SIMTEC is not set -# CONFIG_SCx200_ACB is not set # CONFIG_I2C_SIS5595 is not set # CONFIG_I2C_SIS630 is not set # CONFIG_I2C_SIS96X is not set -# CONFIG_I2C_TAOS_EVM is not set -# CONFIG_I2C_STUB is not set -# CONFIG_I2C_TINY_USB is not set # CONFIG_I2C_VIA is not set # CONFIG_I2C_VIAPRO is not set + +# +# I2C system bus drivers (mostly embedded / system-on-chip) +# +# CONFIG_I2C_OCORES is not set +# CONFIG_I2C_SIMTEC is not set + +# +# External I2C/SMBus adapter drivers +# +# CONFIG_I2C_PARPORT_LIGHT is not set +# CONFIG_I2C_TAOS_EVM is not set +# CONFIG_I2C_TINY_USB is not set + +# +# Graphics adapter I2C/DDC channel drivers +# # CONFIG_I2C_VOODOO3 is not set + +# +# Other I2C/SMBus bus drivers +# # CONFIG_I2C_PCA_PLATFORM is not set +# CONFIG_I2C_STUB is not set +# CONFIG_SCx200_ACB is not set # # Miscellaneous I2C Chip support # # CONFIG_DS1682 is not set +# CONFIG_AT24 is not set # CONFIG_SENSORS_EEPROM is not set # CONFIG_SENSORS_PCF8574 is not set # CONFIG_PCF8575 is not set +# CONFIG_SENSORS_PCA9539 is not set # CONFIG_SENSORS_PCF8591 is not set # CONFIG_SENSORS_MAX6875 is not set # CONFIG_SENSORS_TSL2550 is not set @@ -1299,6 +1343,8 @@ CONFIG_I2C_I801=y # CONFIG_I2C_DEBUG_BUS is not set # CONFIG_I2C_DEBUG_CHIP is not set # CONFIG_SPI is not set +CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y +# CONFIG_GPIOLIB is not set # CONFIG_W1 is not set CONFIG_POWER_SUPPLY=y # CONFIG_POWER_SUPPLY_DEBUG is not set @@ -1360,8 +1406,10 @@ CONFIG_SSB_POSSIBLE=y # # Multifunction device drivers # +# CONFIG_MFD_CORE is not set # CONFIG_MFD_SM501 is not set # CONFIG_HTC_PASIC3 is not set +# CONFIG_MFD_TMIO is not set # # Multimedia devices @@ -1372,6 +1420,7 @@ CONFIG_SSB_POSSIBLE=y # # CONFIG_VIDEO_DEV is not set # CONFIG_DVB_CORE is not set +# CONFIG_VIDEO_MEDIA is not set # # Multimedia drivers @@ -1418,7 +1467,6 @@ CONFIG_FB_CFB_IMAGEBLIT=y # CONFIG_FB_SYS_IMAGEBLIT is not set # CONFIG_FB_FOREIGN_ENDIAN is not set # CONFIG_FB_SYS_FOPS is not set -CONFIG_FB_DEFERRED_IO=y # CONFIG_FB_SVGALIB is not set # CONFIG_FB_MACMODES is not set # CONFIG_FB_BACKLIGHT is not set @@ -1463,6 +1511,7 @@ CONFIG_FB_EFI=y # CONFIG_FB_TRIDENT is not set # CONFIG_FB_ARK is not set # CONFIG_FB_PM3 is not set +# CONFIG_FB_CARMINE is not set # CONFIG_FB_GEODE is not set # CONFIG_FB_VIRTUAL is not set CONFIG_BACKLIGHT_LCD_SUPPORT=y @@ -1470,6 +1519,7 @@ CONFIG_BACKLIGHT_LCD_SUPPORT=y CONFIG_BACKLIGHT_CLASS_DEVICE=y # CONFIG_BACKLIGHT_CORGI is not set # CONFIG_BACKLIGHT_PROGEAR is not set +# CONFIG_BACKLIGHT_MBP_NVIDIA is not set # # Display device support @@ -1489,15 +1539,7 @@ CONFIG_LOGO=y # CONFIG_LOGO_LINUX_MONO is not set # CONFIG_LOGO_LINUX_VGA16 is not set CONFIG_LOGO_LINUX_CLUT224=y - -# -# Sound -# CONFIG_SOUND=y - -# -# Advanced Linux Sound Architecture -# CONFIG_SND=y CONFIG_SND_TIMER=y CONFIG_SND_PCM=y @@ -1515,20 +1557,14 @@ CONFIG_SND_VERBOSE_PROCFS=y # CONFIG_SND_VERBOSE_PRINTK is not set # CONFIG_SND_DEBUG is not set CONFIG_SND_VMASTER=y - -# -# Generic devices -# +CONFIG_SND_DRIVERS=y # CONFIG_SND_PCSP is not set # CONFIG_SND_DUMMY is not set # CONFIG_SND_VIRMIDI is not set # CONFIG_SND_MTPAV is not set # CONFIG_SND_SERIAL_U16550 is not set # CONFIG_SND_MPU401 is not set - -# -# PCI devices -# +CONFIG_SND_PCI=y # CONFIG_SND_AD1889 is not set # CONFIG_SND_ALS300 is not set # CONFIG_SND_ALS4000 is not set @@ -1603,36 +1639,14 @@ CONFIG_SND_HDA_GENERIC=y # CONFIG_SND_VIRTUOSO is not set # CONFIG_SND_VX222 is not set # CONFIG_SND_YMFPCI is not set - -# -# USB devices -# +CONFIG_SND_USB=y # CONFIG_SND_USB_AUDIO is not set # CONFIG_SND_USB_USX2Y is not set # CONFIG_SND_USB_CAIAQ is not set - -# -# PCMCIA devices -# +CONFIG_SND_PCMCIA=y # CONFIG_SND_VXPOCKET is not set # CONFIG_SND_PDAUDIOCF is not set - -# -# System on Chip audio support -# # CONFIG_SND_SOC is not set - -# -# ALSA SoC audio for Freescale SOCs -# - -# -# SoC Audio for the Texas Instruments OMAP -# - -# -# Open Sound System -# # CONFIG_SOUND_PRIME is not set CONFIG_HID_SUPPORT=y CONFIG_HID=y @@ -1668,6 +1682,7 @@ CONFIG_USB_DEVICEFS=y # CONFIG_USB_DYNAMIC_MINORS is not set CONFIG_USB_SUSPEND=y # CONFIG_USB_OTG is not set +CONFIG_USB_MON=y # # USB Host Controller Drivers @@ -1691,6 +1706,7 @@ CONFIG_USB_UHCI_HCD=y # # CONFIG_USB_ACM is not set CONFIG_USB_PRINTER=y +# CONFIG_USB_WDM is not set # # NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' @@ -1712,6 +1728,7 @@ CONFIG_USB_STORAGE=y # CONFIG_USB_STORAGE_ALAUDA is not set # CONFIG_USB_STORAGE_ONETOUCH is not set # CONFIG_USB_STORAGE_KARMA is not set +# CONFIG_USB_STORAGE_SIERRA is not set # CONFIG_USB_STORAGE_CYPRESS_ATACB is not set CONFIG_USB_LIBUSUAL=y @@ -1720,7 +1737,6 @@ CONFIG_USB_LIBUSUAL=y # # CONFIG_USB_MDC800 is not set # CONFIG_USB_MICROTEK is not set -CONFIG_USB_MON=y # # USB port drivers @@ -1733,7 +1749,6 @@ CONFIG_USB_MON=y # CONFIG_USB_EMI62 is not set # CONFIG_USB_EMI26 is not set # CONFIG_USB_ADUTUX is not set -# CONFIG_USB_AUERSWALD is not set # CONFIG_USB_RIO500 is not set # CONFIG_USB_LEGOTOWER is not set # CONFIG_USB_LCD is not set @@ -1750,6 +1765,7 @@ CONFIG_USB_MON=y # CONFIG_USB_TRANCEVIBRATOR is not set # CONFIG_USB_IOWARRIOR is not set # CONFIG_USB_TEST is not set +# CONFIG_USB_ISIGHTFW is not set # CONFIG_USB_GADGET is not set # CONFIG_MMC is not set # CONFIG_MEMSTICK is not set @@ -1759,7 +1775,9 @@ CONFIG_LEDS_CLASS=y # # LED drivers # +# CONFIG_LEDS_PCA9532 is not set # CONFIG_LEDS_CLEVO_MAIL is not set +# CONFIG_LEDS_PCA955X is not set # # LED Triggers @@ -1805,6 +1823,7 @@ CONFIG_RTC_INTF_DEV=y # CONFIG_RTC_DRV_PCF8583 is not set # CONFIG_RTC_DRV_M41T80 is not set # CONFIG_RTC_DRV_S35390A is not set +# CONFIG_RTC_DRV_FM3130 is not set # # SPI RTC drivers @@ -1837,11 +1856,13 @@ CONFIG_DMADEVICES=y # Firmware Drivers # # CONFIG_EDD is not set +CONFIG_FIRMWARE_MEMMAP=y CONFIG_EFI_VARS=y # CONFIG_DELL_RBU is not set # CONFIG_DCDBAS is not set CONFIG_DMIID=y -# CONFIG_ISCSI_IBFT_FIND is not set +CONFIG_ISCSI_IBFT_FIND=y +CONFIG_ISCSI_IBFT=y # # File systems @@ -1920,14 +1941,27 @@ CONFIG_HUGETLB_PAGE=y # CONFIG_CRAMFS is not set # CONFIG_VXFS_FS is not set # CONFIG_MINIX_FS is not set +# CONFIG_OMFS_FS is not set # CONFIG_HPFS_FS is not set # CONFIG_QNX4FS_FS is not set # CONFIG_ROMFS_FS is not set # CONFIG_SYSV_FS is not set # CONFIG_UFS_FS is not set CONFIG_NETWORK_FILESYSTEMS=y -# CONFIG_NFS_FS is not set +CONFIG_NFS_FS=y +CONFIG_NFS_V3=y +CONFIG_NFS_V3_ACL=y +CONFIG_NFS_V4=y +CONFIG_ROOT_NFS=y # CONFIG_NFSD is not set +CONFIG_LOCKD=y +CONFIG_LOCKD_V4=y +CONFIG_NFS_ACL_SUPPORT=y +CONFIG_NFS_COMMON=y +CONFIG_SUNRPC=y +CONFIG_SUNRPC_GSS=y +CONFIG_RPCSEC_GSS_KRB5=y +# CONFIG_RPCSEC_GSS_SPKM3 is not set # CONFIG_SMB_FS is not set # CONFIG_CIFS is not set # CONFIG_NCP_FS is not set @@ -2001,9 +2035,9 @@ CONFIG_NLS_UTF8=y # Kernel hacking # CONFIG_TRACE_IRQFLAGS_SUPPORT=y -# CONFIG_PRINTK_TIME is not set -# CONFIG_ENABLE_WARN_DEPRECATED is not set -# CONFIG_ENABLE_MUST_CHECK is not set +CONFIG_PRINTK_TIME=y +CONFIG_ENABLE_WARN_DEPRECATED=y +CONFIG_ENABLE_MUST_CHECK=y CONFIG_FRAME_WARN=2048 CONFIG_MAGIC_SYSRQ=y # CONFIG_UNUSED_SYMBOLS is not set @@ -2033,6 +2067,7 @@ CONFIG_DEBUG_BUGVERBOSE=y # CONFIG_DEBUG_INFO is not set # CONFIG_DEBUG_VM is not set # CONFIG_DEBUG_WRITECOUNT is not set +CONFIG_DEBUG_MEMORY_INIT=y # CONFIG_DEBUG_LIST is not set # CONFIG_DEBUG_SG is not set CONFIG_FRAME_POINTER=y @@ -2043,23 +2078,32 @@ CONFIG_FRAME_POINTER=y # CONFIG_LKDTM is not set # CONFIG_FAULT_INJECTION is not set # CONFIG_LATENCYTOP is not set +CONFIG_SYSCTL_SYSCALL_CHECK=y +CONFIG_HAVE_FTRACE=y +CONFIG_HAVE_DYNAMIC_FTRACE=y +# CONFIG_FTRACE is not set +# CONFIG_IRQSOFF_TRACER is not set +# CONFIG_SYSPROF_TRACER is not set +# CONFIG_SCHED_TRACER is not set +# CONFIG_CONTEXT_SWITCH_TRACER is not set CONFIG_PROVIDE_OHCI1394_DMA_INIT=y # CONFIG_SAMPLES is not set -# CONFIG_KGDB is not set CONFIG_HAVE_ARCH_KGDB=y +# CONFIG_KGDB is not set # CONFIG_STRICT_DEVMEM is not set +CONFIG_X86_VERBOSE_BOOTUP=y CONFIG_EARLY_PRINTK=y CONFIG_DEBUG_STACKOVERFLOW=y CONFIG_DEBUG_STACK_USAGE=y # CONFIG_DEBUG_PAGEALLOC is not set +# CONFIG_DEBUG_PER_CPU_MAPS is not set # CONFIG_X86_PTDUMP is not set CONFIG_DEBUG_RODATA=y # CONFIG_DEBUG_RODATA_TEST is not set CONFIG_DEBUG_NX_TEST=m # CONFIG_4KSTACKS is not set -CONFIG_X86_FIND_SMP_CONFIG=y -CONFIG_X86_MPPARSE=y CONFIG_DOUBLEFAULT=y +# CONFIG_MMIOTRACE is not set CONFIG_IO_DELAY_TYPE_0X80=0 CONFIG_IO_DELAY_TYPE_0XED=1 CONFIG_IO_DELAY_TYPE_UDELAY=2 @@ -2071,6 +2115,7 @@ CONFIG_IO_DELAY_0X80=y CONFIG_DEFAULT_IO_DELAY_TYPE=0 CONFIG_DEBUG_BOOT_PARAMS=y # CONFIG_CPA_DEBUG is not set +# CONFIG_OPTIMIZE_INLINING is not set # # Security options @@ -2080,7 +2125,6 @@ CONFIG_KEYS_DEBUG_PROC_KEYS=y CONFIG_SECURITY=y CONFIG_SECURITY_NETWORK=y # CONFIG_SECURITY_NETWORK_XFRM is not set -CONFIG_SECURITY_CAPABILITIES=y CONFIG_SECURITY_FILE_CAPABILITIES=y # CONFIG_SECURITY_ROOTPLUG is not set CONFIG_SECURITY_DEFAULT_MMAP_MIN_ADDR=65536 @@ -2141,6 +2185,10 @@ CONFIG_CRYPTO_HMAC=y # CONFIG_CRYPTO_MD4 is not set CONFIG_CRYPTO_MD5=y # CONFIG_CRYPTO_MICHAEL_MIC is not set +# CONFIG_CRYPTO_RMD128 is not set +# CONFIG_CRYPTO_RMD160 is not set +# CONFIG_CRYPTO_RMD256 is not set +# CONFIG_CRYPTO_RMD320 is not set CONFIG_CRYPTO_SHA1=y # CONFIG_CRYPTO_SHA256 is not set # CONFIG_CRYPTO_SHA512 is not set @@ -2151,7 +2199,7 @@ CONFIG_CRYPTO_SHA1=y # Ciphers # CONFIG_CRYPTO_AES=y -# CONFIG_CRYPTO_AES_586 is not set +CONFIG_CRYPTO_AES_586=y # CONFIG_CRYPTO_ANUBIS is not set CONFIG_CRYPTO_ARC4=y # CONFIG_CRYPTO_BLOWFISH is not set @@ -2193,6 +2241,7 @@ CONFIG_GENERIC_FIND_FIRST_BIT=y CONFIG_GENERIC_FIND_NEXT_BIT=y # CONFIG_CRC_CCITT is not set # CONFIG_CRC16 is not set +CONFIG_CRC_T10DIF=y # CONFIG_CRC_ITU_T is not set CONFIG_CRC32=y # CONFIG_CRC7 is not set diff --git a/arch/x86/configs/x86_64_defconfig b/arch/x86/configs/x86_64_defconfig index a4045242962..678c8acefe0 100644 --- a/arch/x86/configs/x86_64_defconfig +++ b/arch/x86/configs/x86_64_defconfig @@ -1,13 +1,13 @@ # # Automatically generated make config: don't edit -# Linux kernel version: 2.6.26-rc1 -# Sun May 4 19:59:57 2008 +# Linux kernel version: 2.6.27-rc4 +# Mon Aug 25 14:40:46 2008 # CONFIG_64BIT=y # CONFIG_X86_32 is not set CONFIG_X86_64=y CONFIG_X86=y -CONFIG_DEFCONFIG_LIST="arch/x86/configs/x86_64_defconfig" +CONFIG_ARCH_DEFCONFIG="arch/x86/configs/x86_64_defconfig" # CONFIG_GENERIC_LOCKBREAK is not set CONFIG_GENERIC_TIME=y CONFIG_GENERIC_CMOS_UPDATE=y @@ -53,6 +53,7 @@ CONFIG_X86_HT=y CONFIG_X86_BIOS_REBOOT=y CONFIG_X86_TRAMPOLINE=y # CONFIG_KTIME_SCALAR is not set +CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config" # # General setup @@ -82,6 +83,7 @@ CONFIG_CGROUPS=y CONFIG_CGROUP_NS=y # CONFIG_CGROUP_DEVICE is not set CONFIG_CPUSETS=y +CONFIG_HAVE_UNSTABLE_SCHED_CLOCK=y CONFIG_GROUP_SCHED=y CONFIG_FAIR_GROUP_SCHED=y # CONFIG_RT_GROUP_SCHED is not set @@ -105,7 +107,6 @@ CONFIG_SYSCTL=y # CONFIG_EMBEDDED is not set CONFIG_UID16=y CONFIG_SYSCTL_SYSCALL=y -CONFIG_SYSCTL_SYSCALL_CHECK=y CONFIG_KALLSYMS=y CONFIG_KALLSYMS_ALL=y CONFIG_KALLSYMS_EXTRA_PASS=y @@ -113,6 +114,7 @@ CONFIG_HOTPLUG=y CONFIG_PRINTK=y CONFIG_BUG=y CONFIG_ELF_CORE=y +CONFIG_PCSPKR_PLATFORM=y # CONFIG_COMPAT_BRK is not set CONFIG_BASE_FULL=y CONFIG_FUTEX=y @@ -132,25 +134,33 @@ CONFIG_MARKERS=y # CONFIG_OPROFILE is not set CONFIG_HAVE_OPROFILE=y CONFIG_KPROBES=y +CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y CONFIG_KRETPROBES=y +CONFIG_HAVE_IOREMAP_PROT=y CONFIG_HAVE_KPROBES=y CONFIG_HAVE_KRETPROBES=y +# CONFIG_HAVE_ARCH_TRACEHOOK is not set # CONFIG_HAVE_DMA_ATTRS is not set +CONFIG_USE_GENERIC_SMP_HELPERS=y +# CONFIG_HAVE_CLK is not set CONFIG_PROC_PAGE_MONITOR=y +# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set CONFIG_SLABINFO=y CONFIG_RT_MUTEXES=y # CONFIG_TINY_SHMEM is not set CONFIG_BASE_SMALL=0 CONFIG_MODULES=y +# CONFIG_MODULE_FORCE_LOAD is not set CONFIG_MODULE_UNLOAD=y CONFIG_MODULE_FORCE_UNLOAD=y # CONFIG_MODVERSIONS is not set # CONFIG_MODULE_SRCVERSION_ALL is not set -# CONFIG_KMOD is not set +CONFIG_KMOD=y CONFIG_STOP_MACHINE=y CONFIG_BLOCK=y CONFIG_BLK_DEV_IO_TRACE=y CONFIG_BLK_DEV_BSG=y +# CONFIG_BLK_DEV_INTEGRITY is not set CONFIG_BLOCK_COMPAT=y # @@ -175,20 +185,15 @@ CONFIG_NO_HZ=y CONFIG_HIGH_RES_TIMERS=y CONFIG_GENERIC_CLOCKEVENTS_BUILD=y CONFIG_SMP=y +CONFIG_X86_FIND_SMP_CONFIG=y +CONFIG_X86_MPPARSE=y CONFIG_X86_PC=y # CONFIG_X86_ELAN is not set # CONFIG_X86_VOYAGER is not set -# CONFIG_X86_NUMAQ is not set -# CONFIG_X86_SUMMIT is not set -# CONFIG_X86_BIGSMP is not set -# CONFIG_X86_VISWS is not set # CONFIG_X86_GENERICARCH is not set -# CONFIG_X86_ES7000 is not set -# CONFIG_X86_RDC321X is not set # CONFIG_X86_VSMP is not set # CONFIG_PARAVIRT_GUEST is not set -CONFIG_MEMTEST_BOOTPARAM=y -CONFIG_MEMTEST_BOOTPARAM_VALUE=0 +# CONFIG_MEMTEST is not set # CONFIG_M386 is not set # CONFIG_M486 is not set # CONFIG_M586 is not set @@ -220,11 +225,12 @@ CONFIG_X86_L1_CACHE_BYTES=64 CONFIG_X86_INTERNODE_CACHE_BYTES=64 CONFIG_X86_CMPXCHG=y CONFIG_X86_L1_CACHE_SHIFT=6 -CONFIG_X86_GOOD_APIC=y +CONFIG_X86_WP_WORKS_OK=y CONFIG_X86_INTEL_USERCOPY=y CONFIG_X86_USE_PPRO_CHECKSUM=y CONFIG_X86_P6_NOP=y CONFIG_X86_TSC=y +CONFIG_X86_CMPXCHG64=y CONFIG_X86_CMOV=y CONFIG_X86_MINIMUM_CPU_FAMILY=64 CONFIG_X86_DEBUGCTLMSR=y @@ -234,8 +240,10 @@ CONFIG_DMI=y CONFIG_GART_IOMMU=y CONFIG_CALGARY_IOMMU=y CONFIG_CALGARY_IOMMU_ENABLED_BY_DEFAULT=y +CONFIG_AMD_IOMMU=y CONFIG_SWIOTLB=y CONFIG_IOMMU_HELPER=y +# CONFIG_MAXSMP is not set CONFIG_NR_CPUS=4 # CONFIG_SCHED_SMT is not set CONFIG_SCHED_MC=y @@ -281,6 +289,7 @@ CONFIG_ZONE_DMA_FLAG=1 CONFIG_BOUNCE=y CONFIG_VIRT_TO_BUS=y CONFIG_MTRR=y +# CONFIG_MTRR_SANITIZER is not set # CONFIG_X86_PAT is not set CONFIG_EFI=y CONFIG_SECCOMP=y @@ -313,6 +322,7 @@ CONFIG_PM_TRACE_RTC=y CONFIG_PM_SLEEP_SMP=y CONFIG_PM_SLEEP=y CONFIG_SUSPEND=y +# CONFIG_PM_TEST_SUSPEND is not set CONFIG_SUSPEND_FREEZER=y CONFIG_HIBERNATION=y CONFIG_PM_STD_PARTITION="" @@ -339,6 +349,7 @@ CONFIG_ACPI_NUMA=y CONFIG_ACPI_BLACKLIST_YEAR=0 # CONFIG_ACPI_DEBUG is not set CONFIG_ACPI_EC=y +# CONFIG_ACPI_PCI_SLOT is not set CONFIG_ACPI_POWER=y CONFIG_ACPI_SYSTEM=y CONFIG_X86_PM_TIMER=y @@ -437,10 +448,6 @@ CONFIG_IA32_EMULATION=y CONFIG_COMPAT=y CONFIG_COMPAT_FOR_U64_ALIGNMENT=y CONFIG_SYSVIPC_COMPAT=y - -# -# Networking -# CONFIG_NET=y # @@ -464,7 +471,10 @@ CONFIG_IP_FIB_HASH=y CONFIG_IP_MULTIPLE_TABLES=y CONFIG_IP_ROUTE_MULTIPATH=y CONFIG_IP_ROUTE_VERBOSE=y -# CONFIG_IP_PNP is not set +CONFIG_IP_PNP=y +CONFIG_IP_PNP_DHCP=y +CONFIG_IP_PNP_BOOTP=y +CONFIG_IP_PNP_RARP=y # CONFIG_NET_IPIP is not set # CONFIG_NET_IPGRE is not set CONFIG_IP_MROUTE=y @@ -607,7 +617,6 @@ CONFIG_NET_SCHED=y # CONFIG_NET_SCH_HTB is not set # CONFIG_NET_SCH_HFSC is not set # CONFIG_NET_SCH_PRIO is not set -# CONFIG_NET_SCH_RR is not set # CONFIG_NET_SCH_RED is not set # CONFIG_NET_SCH_SFQ is not set # CONFIG_NET_SCH_TEQL is not set @@ -669,28 +678,19 @@ CONFIG_FIB_RULES=y CONFIG_CFG80211=y CONFIG_NL80211=y CONFIG_WIRELESS_EXT=y +CONFIG_WIRELESS_EXT_SYSFS=y CONFIG_MAC80211=y # # Rate control algorithm selection # +CONFIG_MAC80211_RC_PID=y CONFIG_MAC80211_RC_DEFAULT_PID=y -# CONFIG_MAC80211_RC_DEFAULT_NONE is not set - -# -# Selecting 'y' for an algorithm will -# - -# -# build the algorithm into mac80211. -# CONFIG_MAC80211_RC_DEFAULT="pid" -CONFIG_MAC80211_RC_PID=y # CONFIG_MAC80211_MESH is not set CONFIG_MAC80211_LEDS=y # CONFIG_MAC80211_DEBUGFS is not set -# CONFIG_MAC80211_DEBUG_PACKET_ALIGNMENT is not set -# CONFIG_MAC80211_DEBUG is not set +# CONFIG_MAC80211_DEBUG_MENU is not set # CONFIG_IEEE80211 is not set # CONFIG_RFKILL is not set # CONFIG_NET_9P is not set @@ -706,6 +706,8 @@ CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" CONFIG_STANDALONE=y CONFIG_PREVENT_FIRMWARE_BUILD=y CONFIG_FW_LOADER=y +CONFIG_FIRMWARE_IN_KERNEL=y +CONFIG_EXTRA_FIRMWARE="" # CONFIG_DEBUG_DRIVER is not set CONFIG_DEBUG_DEVRES=y # CONFIG_SYS_HYPERVISOR is not set @@ -738,6 +740,7 @@ CONFIG_BLK_DEV_RAM_SIZE=16384 # CONFIG_BLK_DEV_XIP is not set # CONFIG_CDROM_PKTCDVD is not set # CONFIG_ATA_OVER_ETH is not set +# CONFIG_BLK_DEV_HD is not set CONFIG_MISC_DEVICES=y # CONFIG_IBM_ASM is not set # CONFIG_PHANTOM is not set @@ -748,10 +751,14 @@ CONFIG_MISC_DEVICES=y # CONFIG_ASUS_LAPTOP is not set # CONFIG_FUJITSU_LAPTOP is not set # CONFIG_MSI_LAPTOP is not set +# CONFIG_COMPAL_LAPTOP is not set # CONFIG_SONY_LAPTOP is not set # CONFIG_THINKPAD_ACPI is not set # CONFIG_INTEL_MENLOW is not set # CONFIG_ENCLOSURE_SERVICES is not set +# CONFIG_SGI_XP is not set +# CONFIG_HP_ILO is not set +# CONFIG_SGI_GRU is not set CONFIG_HAVE_IDE=y # CONFIG_IDE is not set @@ -790,12 +797,13 @@ CONFIG_SCSI_WAIT_SCAN=m # CONFIG_SCSI_SPI_ATTRS=y # CONFIG_SCSI_FC_ATTRS is not set -# CONFIG_SCSI_ISCSI_ATTRS is not set +CONFIG_SCSI_ISCSI_ATTRS=y # CONFIG_SCSI_SAS_ATTRS is not set # CONFIG_SCSI_SAS_LIBSAS is not set # CONFIG_SCSI_SRP_ATTRS is not set # CONFIG_SCSI_LOWLEVEL is not set # CONFIG_SCSI_LOWLEVEL_PCMCIA is not set +# CONFIG_SCSI_DH is not set CONFIG_ATA=y # CONFIG_ATA_NONSTANDARD is not set CONFIG_ATA_ACPI=y @@ -857,6 +865,7 @@ CONFIG_PATA_OLDPIIX=y # CONFIG_PATA_SIS is not set # CONFIG_PATA_VIA is not set # CONFIG_PATA_WINBOND is not set +CONFIG_PATA_SCH=y CONFIG_MD=y CONFIG_BLK_DEV_MD=y # CONFIG_MD_LINEAR is not set @@ -880,13 +889,16 @@ CONFIG_DM_ZERO=y # # IEEE 1394 (FireWire) support # + +# +# Enable only one of the two stacks, unless you know what you are doing +# # CONFIG_FIREWIRE is not set # CONFIG_IEEE1394 is not set # CONFIG_I2O is not set CONFIG_MACINTOSH_DRIVERS=y CONFIG_MAC_EMUMOUSEBTN=y CONFIG_NETDEVICES=y -# CONFIG_NETDEVICES_MULTIQUEUE is not set # CONFIG_IFB is not set # CONFIG_DUMMY is not set # CONFIG_BONDING is not set @@ -896,7 +908,23 @@ CONFIG_NETDEVICES=y # CONFIG_VETH is not set # CONFIG_NET_SB1000 is not set # CONFIG_ARCNET is not set -# CONFIG_PHYLIB is not set +CONFIG_PHYLIB=y + +# +# MII PHY device drivers +# +# CONFIG_MARVELL_PHY is not set +# CONFIG_DAVICOM_PHY is not set +# CONFIG_QSEMI_PHY is not set +# CONFIG_LXT_PHY is not set +# CONFIG_CICADA_PHY is not set +# CONFIG_VITESSE_PHY is not set +# CONFIG_SMSC_PHY is not set +# CONFIG_BROADCOM_PHY is not set +# CONFIG_ICPLUS_PHY is not set +# CONFIG_REALTEK_PHY is not set +# CONFIG_FIXED_PHY is not set +# CONFIG_MDIO_BITBANG is not set CONFIG_NET_ETHERNET=y CONFIG_MII=y # CONFIG_HAPPYMEAL is not set @@ -940,16 +968,15 @@ CONFIG_8139TOO_PIO=y # CONFIG_SIS900 is not set # CONFIG_EPIC100 is not set # CONFIG_SUNDANCE is not set +# CONFIG_TLAN is not set # CONFIG_VIA_RHINE is not set # CONFIG_SC92031 is not set CONFIG_NETDEV_1000=y # CONFIG_ACENIC is not set # CONFIG_DL2K is not set CONFIG_E1000=y -# CONFIG_E1000_NAPI is not set # CONFIG_E1000_DISABLE_PACKET_SPLIT is not set # CONFIG_E1000E is not set -# CONFIG_E1000E_ENABLED is not set # CONFIG_IP1000 is not set # CONFIG_IGB is not set # CONFIG_NS83820 is not set @@ -965,6 +992,7 @@ CONFIG_TIGON3=y # CONFIG_BNX2 is not set # CONFIG_QLA3XXX is not set # CONFIG_ATL1 is not set +# CONFIG_ATL1E is not set CONFIG_NETDEV_10000=y # CONFIG_CHELSIO_T1 is not set # CONFIG_CHELSIO_T3 is not set @@ -1003,13 +1031,14 @@ CONFIG_WLAN_80211=y # CONFIG_RTL8180 is not set # CONFIG_RTL8187 is not set # CONFIG_ADM8211 is not set +# CONFIG_MAC80211_HWSIM is not set # CONFIG_P54_COMMON is not set CONFIG_ATH5K=y # CONFIG_ATH5K_DEBUG is not set -# CONFIG_IWLWIFI is not set +# CONFIG_ATH9K is not set # CONFIG_IWLCORE is not set # CONFIG_IWLWIFI_LEDS is not set -# CONFIG_IWL4965 is not set +# CONFIG_IWLAGN is not set # CONFIG_IWL3945 is not set # CONFIG_HOSTAP is not set # CONFIG_B43 is not set @@ -1088,6 +1117,7 @@ CONFIG_MOUSE_PS2_TRACKPOINT=y # CONFIG_MOUSE_PS2_TOUCHKIT is not set # CONFIG_MOUSE_SERIAL is not set # CONFIG_MOUSE_APPLETOUCH is not set +# CONFIG_MOUSE_BCM5974 is not set # CONFIG_MOUSE_VSXXXAA is not set CONFIG_INPUT_JOYSTICK=y # CONFIG_JOYSTICK_ANALOG is not set @@ -1122,12 +1152,14 @@ CONFIG_INPUT_TOUCHSCREEN=y # CONFIG_TOUCHSCREEN_GUNZE is not set # CONFIG_TOUCHSCREEN_ELO is not set # CONFIG_TOUCHSCREEN_MTOUCH is not set +# CONFIG_TOUCHSCREEN_INEXIO is not set # CONFIG_TOUCHSCREEN_MK712 is not set # CONFIG_TOUCHSCREEN_PENMOUNT is not set # CONFIG_TOUCHSCREEN_TOUCHRIGHT is not set # CONFIG_TOUCHSCREEN_TOUCHWIN is not set # CONFIG_TOUCHSCREEN_UCB1400 is not set # CONFIG_TOUCHSCREEN_USB_COMPOSITE is not set +# CONFIG_TOUCHSCREEN_TOUCHIT213 is not set CONFIG_INPUT_MISC=y # CONFIG_INPUT_PCSPKR is not set # CONFIG_INPUT_APANEL is not set @@ -1155,6 +1187,7 @@ CONFIG_SERIO_LIBPS2=y # Character devices # CONFIG_VT=y +CONFIG_CONSOLE_TRANSLATIONS=y CONFIG_VT_CONSOLE=y CONFIG_HW_CONSOLE=y CONFIG_VT_HW_CONSOLE_BINDING=y @@ -1222,7 +1255,6 @@ CONFIG_NVRAM=y # CONFIG_PC8736x_GPIO is not set # CONFIG_RAW_DRIVER is not set CONFIG_HPET=y -# CONFIG_HPET_RTC_IRQ is not set # CONFIG_HPET_MMAP is not set # CONFIG_HANGCHECK_TIMER is not set # CONFIG_TCG_TPM is not set @@ -1231,42 +1263,63 @@ CONFIG_DEVPORT=y CONFIG_I2C=y CONFIG_I2C_BOARDINFO=y # CONFIG_I2C_CHARDEV is not set +CONFIG_I2C_HELPER_AUTO=y # # I2C Hardware Bus support # + +# +# PC SMBus host controller drivers +# # CONFIG_I2C_ALI1535 is not set # CONFIG_I2C_ALI1563 is not set # CONFIG_I2C_ALI15X3 is not set # CONFIG_I2C_AMD756 is not set # CONFIG_I2C_AMD8111 is not set CONFIG_I2C_I801=y -# CONFIG_I2C_I810 is not set +# CONFIG_I2C_ISCH is not set # CONFIG_I2C_PIIX4 is not set # CONFIG_I2C_NFORCE2 is not set -# CONFIG_I2C_OCORES is not set -# CONFIG_I2C_PARPORT_LIGHT is not set -# CONFIG_I2C_PROSAVAGE is not set -# CONFIG_I2C_SAVAGE4 is not set -# CONFIG_I2C_SIMTEC is not set # CONFIG_I2C_SIS5595 is not set # CONFIG_I2C_SIS630 is not set # CONFIG_I2C_SIS96X is not set -# CONFIG_I2C_TAOS_EVM is not set -# CONFIG_I2C_STUB is not set -# CONFIG_I2C_TINY_USB is not set # CONFIG_I2C_VIA is not set # CONFIG_I2C_VIAPRO is not set + +# +# I2C system bus drivers (mostly embedded / system-on-chip) +# +# CONFIG_I2C_OCORES is not set +# CONFIG_I2C_SIMTEC is not set + +# +# External I2C/SMBus adapter drivers +# +# CONFIG_I2C_PARPORT_LIGHT is not set +# CONFIG_I2C_TAOS_EVM is not set +# CONFIG_I2C_TINY_USB is not set + +# +# Graphics adapter I2C/DDC channel drivers +# # CONFIG_I2C_VOODOO3 is not set + +# +# Other I2C/SMBus bus drivers +# # CONFIG_I2C_PCA_PLATFORM is not set +# CONFIG_I2C_STUB is not set # # Miscellaneous I2C Chip support # # CONFIG_DS1682 is not set +# CONFIG_AT24 is not set # CONFIG_SENSORS_EEPROM is not set # CONFIG_SENSORS_PCF8574 is not set # CONFIG_PCF8575 is not set +# CONFIG_SENSORS_PCA9539 is not set # CONFIG_SENSORS_PCF8591 is not set # CONFIG_SENSORS_MAX6875 is not set # CONFIG_SENSORS_TSL2550 is not set @@ -1275,6 +1328,8 @@ CONFIG_I2C_I801=y # CONFIG_I2C_DEBUG_BUS is not set # CONFIG_I2C_DEBUG_CHIP is not set # CONFIG_SPI is not set +CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y +# CONFIG_GPIOLIB is not set # CONFIG_W1 is not set CONFIG_POWER_SUPPLY=y # CONFIG_POWER_SUPPLY_DEBUG is not set @@ -1335,8 +1390,10 @@ CONFIG_SSB_POSSIBLE=y # # Multifunction device drivers # +# CONFIG_MFD_CORE is not set # CONFIG_MFD_SM501 is not set # CONFIG_HTC_PASIC3 is not set +# CONFIG_MFD_TMIO is not set # # Multimedia devices @@ -1347,6 +1404,7 @@ CONFIG_SSB_POSSIBLE=y # # CONFIG_VIDEO_DEV is not set # CONFIG_DVB_CORE is not set +# CONFIG_VIDEO_MEDIA is not set # # Multimedia drivers @@ -1387,7 +1445,6 @@ CONFIG_FB_CFB_IMAGEBLIT=y # CONFIG_FB_SYS_IMAGEBLIT is not set # CONFIG_FB_FOREIGN_ENDIAN is not set # CONFIG_FB_SYS_FOPS is not set -CONFIG_FB_DEFERRED_IO=y # CONFIG_FB_SVGALIB is not set # CONFIG_FB_MACMODES is not set # CONFIG_FB_BACKLIGHT is not set @@ -1430,6 +1487,7 @@ CONFIG_FB_EFI=y # CONFIG_FB_TRIDENT is not set # CONFIG_FB_ARK is not set # CONFIG_FB_PM3 is not set +# CONFIG_FB_CARMINE is not set # CONFIG_FB_GEODE is not set # CONFIG_FB_VIRTUAL is not set CONFIG_BACKLIGHT_LCD_SUPPORT=y @@ -1437,6 +1495,7 @@ CONFIG_BACKLIGHT_LCD_SUPPORT=y CONFIG_BACKLIGHT_CLASS_DEVICE=y # CONFIG_BACKLIGHT_CORGI is not set # CONFIG_BACKLIGHT_PROGEAR is not set +# CONFIG_BACKLIGHT_MBP_NVIDIA is not set # # Display device support @@ -1456,15 +1515,7 @@ CONFIG_LOGO=y # CONFIG_LOGO_LINUX_MONO is not set # CONFIG_LOGO_LINUX_VGA16 is not set CONFIG_LOGO_LINUX_CLUT224=y - -# -# Sound -# CONFIG_SOUND=y - -# -# Advanced Linux Sound Architecture -# CONFIG_SND=y CONFIG_SND_TIMER=y CONFIG_SND_PCM=y @@ -1482,20 +1533,14 @@ CONFIG_SND_VERBOSE_PROCFS=y # CONFIG_SND_VERBOSE_PRINTK is not set # CONFIG_SND_DEBUG is not set CONFIG_SND_VMASTER=y - -# -# Generic devices -# +CONFIG_SND_DRIVERS=y # CONFIG_SND_PCSP is not set # CONFIG_SND_DUMMY is not set # CONFIG_SND_VIRMIDI is not set # CONFIG_SND_MTPAV is not set # CONFIG_SND_SERIAL_U16550 is not set # CONFIG_SND_MPU401 is not set - -# -# PCI devices -# +CONFIG_SND_PCI=y # CONFIG_SND_AD1889 is not set # CONFIG_SND_ALS300 is not set # CONFIG_SND_ALS4000 is not set @@ -1568,36 +1613,14 @@ CONFIG_SND_HDA_GENERIC=y # CONFIG_SND_VIRTUOSO is not set # CONFIG_SND_VX222 is not set # CONFIG_SND_YMFPCI is not set - -# -# USB devices -# +CONFIG_SND_USB=y # CONFIG_SND_USB_AUDIO is not set # CONFIG_SND_USB_USX2Y is not set # CONFIG_SND_USB_CAIAQ is not set - -# -# PCMCIA devices -# +CONFIG_SND_PCMCIA=y # CONFIG_SND_VXPOCKET is not set # CONFIG_SND_PDAUDIOCF is not set - -# -# System on Chip audio support -# # CONFIG_SND_SOC is not set - -# -# ALSA SoC audio for Freescale SOCs -# - -# -# SoC Audio for the Texas Instruments OMAP -# - -# -# Open Sound System -# # CONFIG_SOUND_PRIME is not set CONFIG_HID_SUPPORT=y CONFIG_HID=y @@ -1633,6 +1656,7 @@ CONFIG_USB_DEVICEFS=y # CONFIG_USB_DYNAMIC_MINORS is not set CONFIG_USB_SUSPEND=y # CONFIG_USB_OTG is not set +CONFIG_USB_MON=y # # USB Host Controller Drivers @@ -1656,6 +1680,7 @@ CONFIG_USB_UHCI_HCD=y # # CONFIG_USB_ACM is not set CONFIG_USB_PRINTER=y +# CONFIG_USB_WDM is not set # # NOTE: USB_STORAGE enables SCSI, and 'SCSI disk support' @@ -1677,6 +1702,7 @@ CONFIG_USB_STORAGE=y # CONFIG_USB_STORAGE_ALAUDA is not set # CONFIG_USB_STORAGE_ONETOUCH is not set # CONFIG_USB_STORAGE_KARMA is not set +# CONFIG_USB_STORAGE_SIERRA is not set # CONFIG_USB_STORAGE_CYPRESS_ATACB is not set CONFIG_USB_LIBUSUAL=y @@ -1685,7 +1711,6 @@ CONFIG_USB_LIBUSUAL=y # # CONFIG_USB_MDC800 is not set # CONFIG_USB_MICROTEK is not set -CONFIG_USB_MON=y # # USB port drivers @@ -1698,7 +1723,6 @@ CONFIG_USB_MON=y # CONFIG_USB_EMI62 is not set # CONFIG_USB_EMI26 is not set # CONFIG_USB_ADUTUX is not set -# CONFIG_USB_AUERSWALD is not set # CONFIG_USB_RIO500 is not set # CONFIG_USB_LEGOTOWER is not set # CONFIG_USB_LCD is not set @@ -1715,6 +1739,7 @@ CONFIG_USB_MON=y # CONFIG_USB_TRANCEVIBRATOR is not set # CONFIG_USB_IOWARRIOR is not set # CONFIG_USB_TEST is not set +# CONFIG_USB_ISIGHTFW is not set # CONFIG_USB_GADGET is not set # CONFIG_MMC is not set # CONFIG_MEMSTICK is not set @@ -1724,7 +1749,9 @@ CONFIG_LEDS_CLASS=y # # LED drivers # +# CONFIG_LEDS_PCA9532 is not set # CONFIG_LEDS_CLEVO_MAIL is not set +# CONFIG_LEDS_PCA955X is not set # # LED Triggers @@ -1770,6 +1797,7 @@ CONFIG_RTC_INTF_DEV=y # CONFIG_RTC_DRV_PCF8583 is not set # CONFIG_RTC_DRV_M41T80 is not set # CONFIG_RTC_DRV_S35390A is not set +# CONFIG_RTC_DRV_FM3130 is not set # # SPI RTC drivers @@ -1802,11 +1830,13 @@ CONFIG_DMADEVICES=y # Firmware Drivers # # CONFIG_EDD is not set +CONFIG_FIRMWARE_MEMMAP=y CONFIG_EFI_VARS=y # CONFIG_DELL_RBU is not set # CONFIG_DCDBAS is not set CONFIG_DMIID=y -# CONFIG_ISCSI_IBFT_FIND is not set +CONFIG_ISCSI_IBFT_FIND=y +CONFIG_ISCSI_IBFT=y # # File systems @@ -1886,14 +1916,27 @@ CONFIG_HUGETLB_PAGE=y # CONFIG_CRAMFS is not set # CONFIG_VXFS_FS is not set # CONFIG_MINIX_FS is not set +# CONFIG_OMFS_FS is not set # CONFIG_HPFS_FS is not set # CONFIG_QNX4FS_FS is not set # CONFIG_ROMFS_FS is not set # CONFIG_SYSV_FS is not set # CONFIG_UFS_FS is not set CONFIG_NETWORK_FILESYSTEMS=y -# CONFIG_NFS_FS is not set +CONFIG_NFS_FS=y +CONFIG_NFS_V3=y +CONFIG_NFS_V3_ACL=y +CONFIG_NFS_V4=y +CONFIG_ROOT_NFS=y # CONFIG_NFSD is not set +CONFIG_LOCKD=y +CONFIG_LOCKD_V4=y +CONFIG_NFS_ACL_SUPPORT=y +CONFIG_NFS_COMMON=y +CONFIG_SUNRPC=y +CONFIG_SUNRPC_GSS=y +CONFIG_RPCSEC_GSS_KRB5=y +# CONFIG_RPCSEC_GSS_SPKM3 is not set # CONFIG_SMB_FS is not set # CONFIG_CIFS is not set # CONFIG_NCP_FS is not set @@ -1967,9 +2010,9 @@ CONFIG_NLS_UTF8=y # Kernel hacking # CONFIG_TRACE_IRQFLAGS_SUPPORT=y -# CONFIG_PRINTK_TIME is not set -# CONFIG_ENABLE_WARN_DEPRECATED is not set -# CONFIG_ENABLE_MUST_CHECK is not set +CONFIG_PRINTK_TIME=y +CONFIG_ENABLE_WARN_DEPRECATED=y +CONFIG_ENABLE_MUST_CHECK=y CONFIG_FRAME_WARN=2048 CONFIG_MAGIC_SYSRQ=y # CONFIG_UNUSED_SYMBOLS is not set @@ -1998,6 +2041,7 @@ CONFIG_DEBUG_BUGVERBOSE=y # CONFIG_DEBUG_INFO is not set # CONFIG_DEBUG_VM is not set # CONFIG_DEBUG_WRITECOUNT is not set +CONFIG_DEBUG_MEMORY_INIT=y # CONFIG_DEBUG_LIST is not set # CONFIG_DEBUG_SG is not set CONFIG_FRAME_POINTER=y @@ -2008,11 +2052,20 @@ CONFIG_FRAME_POINTER=y # CONFIG_LKDTM is not set # CONFIG_FAULT_INJECTION is not set # CONFIG_LATENCYTOP is not set +CONFIG_SYSCTL_SYSCALL_CHECK=y +CONFIG_HAVE_FTRACE=y +CONFIG_HAVE_DYNAMIC_FTRACE=y +# CONFIG_FTRACE is not set +# CONFIG_IRQSOFF_TRACER is not set +# CONFIG_SYSPROF_TRACER is not set +# CONFIG_SCHED_TRACER is not set +# CONFIG_CONTEXT_SWITCH_TRACER is not set CONFIG_PROVIDE_OHCI1394_DMA_INIT=y # CONFIG_SAMPLES is not set -# CONFIG_KGDB is not set CONFIG_HAVE_ARCH_KGDB=y +# CONFIG_KGDB is not set # CONFIG_STRICT_DEVMEM is not set +CONFIG_X86_VERBOSE_BOOTUP=y CONFIG_EARLY_PRINTK=y CONFIG_DEBUG_STACKOVERFLOW=y CONFIG_DEBUG_STACK_USAGE=y @@ -2023,8 +2076,8 @@ CONFIG_DEBUG_RODATA=y # CONFIG_DIRECT_GBPAGES is not set # CONFIG_DEBUG_RODATA_TEST is not set CONFIG_DEBUG_NX_TEST=m -CONFIG_X86_MPPARSE=y # CONFIG_IOMMU_DEBUG is not set +# CONFIG_MMIOTRACE is not set CONFIG_IO_DELAY_TYPE_0X80=0 CONFIG_IO_DELAY_TYPE_0XED=1 CONFIG_IO_DELAY_TYPE_UDELAY=2 @@ -2036,6 +2089,7 @@ CONFIG_IO_DELAY_0X80=y CONFIG_DEFAULT_IO_DELAY_TYPE=0 CONFIG_DEBUG_BOOT_PARAMS=y # CONFIG_CPA_DEBUG is not set +# CONFIG_OPTIMIZE_INLINING is not set # # Security options @@ -2045,7 +2099,6 @@ CONFIG_KEYS_DEBUG_PROC_KEYS=y CONFIG_SECURITY=y CONFIG_SECURITY_NETWORK=y # CONFIG_SECURITY_NETWORK_XFRM is not set -CONFIG_SECURITY_CAPABILITIES=y CONFIG_SECURITY_FILE_CAPABILITIES=y # CONFIG_SECURITY_ROOTPLUG is not set CONFIG_SECURITY_DEFAULT_MMAP_MIN_ADDR=65536 @@ -2106,6 +2159,10 @@ CONFIG_CRYPTO_HMAC=y # CONFIG_CRYPTO_MD4 is not set CONFIG_CRYPTO_MD5=y # CONFIG_CRYPTO_MICHAEL_MIC is not set +# CONFIG_CRYPTO_RMD128 is not set +# CONFIG_CRYPTO_RMD160 is not set +# CONFIG_CRYPTO_RMD256 is not set +# CONFIG_CRYPTO_RMD320 is not set CONFIG_CRYPTO_SHA1=y # CONFIG_CRYPTO_SHA256 is not set # CONFIG_CRYPTO_SHA512 is not set @@ -2155,6 +2212,7 @@ CONFIG_GENERIC_FIND_FIRST_BIT=y CONFIG_GENERIC_FIND_NEXT_BIT=y # CONFIG_CRC_CCITT is not set # CONFIG_CRC16 is not set +CONFIG_CRC_T10DIF=y # CONFIG_CRC_ITU_T is not set CONFIG_CRC32=y # CONFIG_CRC7 is not set -- cgit v1.2.3 From 7414aa41a63348c3bc72d8c37b716024c29b6d50 Mon Sep 17 00:00:00 2001 From: "H. Peter Anvin" Date: Wed, 27 Aug 2008 17:56:44 -0700 Subject: x86: generate names for /proc/cpuinfo from We have had a number of cases where (and its predecessors) have diverged substantially from the names list in /proc/cpuinfo. This patch generates the latter from the former. It retains the option for explicitly overriding the strings, but by making that require a separate action it should at least be less likely to happen. It would be good to do a future pass and rename strings that are gratuituously different in the kernel (/proc/cpuinfo is a userspace interface and must remain constant.) Signed-off-by: H. Peter Anvin --- arch/x86/boot/mkcpustr.c | 2 +- arch/x86/kernel/cpu/Makefile | 11 ++++- arch/x86/kernel/cpu/feature_names.c | 84 ------------------------------------- arch/x86/kernel/cpu/mkcapflags.pl | 32 ++++++++++++++ arch/x86/kernel/cpu/powerflags.c | 20 +++++++++ 5 files changed, 63 insertions(+), 86 deletions(-) delete mode 100644 arch/x86/kernel/cpu/feature_names.c create mode 100644 arch/x86/kernel/cpu/mkcapflags.pl create mode 100644 arch/x86/kernel/cpu/powerflags.c (limited to 'arch/x86') diff --git a/arch/x86/boot/mkcpustr.c b/arch/x86/boot/mkcpustr.c index bbe76953bae..4589caa3e9d 100644 --- a/arch/x86/boot/mkcpustr.c +++ b/arch/x86/boot/mkcpustr.c @@ -15,7 +15,7 @@ #include -#include "../kernel/cpu/feature_names.c" +#include "../kernel/cpu/capflags.c" #if NCAPFLAGS > 8 # error "Need to adjust the boot code handling of CPUID strings" diff --git a/arch/x86/kernel/cpu/Makefile b/arch/x86/kernel/cpu/Makefile index a0fc6c14438..3ede19a4e0b 100644 --- a/arch/x86/kernel/cpu/Makefile +++ b/arch/x86/kernel/cpu/Makefile @@ -3,7 +3,7 @@ # obj-y := intel_cacheinfo.o addon_cpuid_features.o -obj-y += proc.o feature_names.o +obj-y += proc.o capflags.o powerflags.o obj-$(CONFIG_X86_32) += common.o bugs.o cmpxchg.o obj-$(CONFIG_X86_64) += common_64.o bugs_64.o @@ -23,3 +23,12 @@ obj-$(CONFIG_MTRR) += mtrr/ obj-$(CONFIG_CPU_FREQ) += cpufreq/ obj-$(CONFIG_X86_LOCAL_APIC) += perfctr-watchdog.o + +quiet_cmd_mkcapflags = MKCAP $@ + cmd_mkcapflags = $(PERL) $(srctree)/$(src)/mkcapflags.pl $< $@ + +cpufeature = $(src)/../../../../include/asm-x86/cpufeature.h + +targets += capflags.c +$(obj)/capflags.c: $(cpufeature) $(src)/mkcapflags.pl FORCE + $(call if_changed,mkcapflags) diff --git a/arch/x86/kernel/cpu/feature_names.c b/arch/x86/kernel/cpu/feature_names.c deleted file mode 100644 index c9017799497..00000000000 --- a/arch/x86/kernel/cpu/feature_names.c +++ /dev/null @@ -1,84 +0,0 @@ -/* - * Strings for the various x86 capability flags. - * - * This file must not contain any executable code. - */ - -#include - -/* - * These flag bits must match the definitions in . - * NULL means this bit is undefined or reserved; either way it doesn't - * have meaning as far as Linux is concerned. Note that it's important - * to realize there is a difference between this table and CPUID -- if - * applications want to get the raw CPUID data, they should access - * /dev/cpu//cpuid instead. - */ -const char * const x86_cap_flags[NCAPINTS*32] = { - /* Intel-defined */ - "fpu", "vme", "de", "pse", "tsc", "msr", "pae", "mce", - "cx8", "apic", NULL, "sep", "mtrr", "pge", "mca", "cmov", - "pat", "pse36", "pn", "clflush", NULL, "dts", "acpi", "mmx", - "fxsr", "sse", "sse2", "ss", "ht", "tm", "ia64", "pbe", - - /* AMD-defined */ - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - NULL, NULL, NULL, "syscall", NULL, NULL, NULL, NULL, - NULL, NULL, NULL, "mp", "nx", NULL, "mmxext", NULL, - NULL, "fxsr_opt", "pdpe1gb", "rdtscp", NULL, "lm", - "3dnowext", "3dnow", - - /* Transmeta-defined */ - "recovery", "longrun", NULL, "lrti", NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - - /* Other (Linux-defined) */ - "cxmmx", "k6_mtrr", "cyrix_arr", "centaur_mcr", - NULL, NULL, NULL, NULL, - "constant_tsc", "up", NULL, "arch_perfmon", - "pebs", "bts", NULL, NULL, - "rep_good", NULL, NULL, NULL, - "nopl", NULL, NULL, NULL, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - - /* Intel-defined (#2) */ - "pni", NULL, NULL, "monitor", "ds_cpl", "vmx", "smx", "est", - "tm2", "ssse3", "cid", NULL, NULL, "cx16", "xtpr", NULL, - NULL, NULL, "dca", "sse4_1", "sse4_2", NULL, NULL, "popcnt", - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - - /* VIA/Cyrix/Centaur-defined */ - NULL, NULL, "rng", "rng_en", NULL, NULL, "ace", "ace_en", - "ace2", "ace2_en", "phe", "phe_en", "pmm", "pmm_en", NULL, NULL, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - - /* AMD-defined (#2) */ - "lahf_lm", "cmp_legacy", "svm", "extapic", - "cr8_legacy", "abm", "sse4a", "misalignsse", - "3dnowprefetch", "osvw", "ibs", "sse5", - "skinit", "wdt", NULL, NULL, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - - /* Auxiliary (Linux-defined) */ - "ida", NULL, NULL, NULL, NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, -}; - -const char *const x86_power_flags[32] = { - "ts", /* temperature sensor */ - "fid", /* frequency id control */ - "vid", /* voltage id control */ - "ttp", /* thermal trip */ - "tm", - "stc", - "100mhzsteps", - "hwpstate", - "", /* tsc invariant mapped to constant_tsc */ - /* nothing */ -}; diff --git a/arch/x86/kernel/cpu/mkcapflags.pl b/arch/x86/kernel/cpu/mkcapflags.pl new file mode 100644 index 00000000000..dfea390e160 --- /dev/null +++ b/arch/x86/kernel/cpu/mkcapflags.pl @@ -0,0 +1,32 @@ +#!/usr/bin/perl +# +# Generate the x86_cap_flags[] array from include/asm-x86/cpufeature.h +# + +($in, $out) = @ARGV; + +open(IN, "< $in\0") or die "$0: cannot open: $in: $!\n"; +open(OUT, "> $out\0") or die "$0: cannot create: $out: $!\n"; + +print OUT "#include \n\n"; +print OUT "const char * const x86_cap_flags[NCAPINTS*32] = {\n"; + +while (defined($line = )) { + if ($line =~ /^\s*\#\s*define\s+(X86_FEATURE_(\S+))\s+(.*)$/) { + $macro = $1; + $feature = $2; + $tail = $3; + if ($tail =~ /\/\*\s*\"([^"]*)\".*\*\//) { + $feature = $1; + } + + if ($feature ne '') { + printf OUT "\t%-32s = \"%s\",\n", + "[$macro]", "\L$feature"; + } + } +} +print OUT "};\n"; + +close(IN); +close(OUT); diff --git a/arch/x86/kernel/cpu/powerflags.c b/arch/x86/kernel/cpu/powerflags.c new file mode 100644 index 00000000000..5abbea297e0 --- /dev/null +++ b/arch/x86/kernel/cpu/powerflags.c @@ -0,0 +1,20 @@ +/* + * Strings for the various x86 power flags + * + * This file must not contain any executable code. + */ + +#include + +const char *const x86_power_flags[32] = { + "ts", /* temperature sensor */ + "fid", /* frequency id control */ + "vid", /* voltage id control */ + "ttp", /* thermal trip */ + "tm", + "stc", + "100mhzsteps", + "hwpstate", + "", /* tsc invariant mapped to constant_tsc */ + /* nothing */ +}; -- cgit v1.2.3