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Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 

* 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  x86, irq: Allow 0xff for /proc/irq/[n]/smp_affinity on an 8-cpu system
  Makefile: Unexport LC_ALL instead of clearing it
  x86: Fix objdump version check in arch/x86/tools/chkobjdump.awk
  x86: Reenable TSC sync check at boot, even with NONSTOP_TSC
  x86: Don't use POSIX character classes in gen-insn-attr-x86.awk
  Makefile: set LC_CTYPE, LC_COLLATE, LC_NUMERIC to C
  x86: Increase MAX_EARLY_RES; insufficient on 32-bit NUMA
  x86: Fix checking of SRAT when node 0 ram is not from 0
  x86, cpuid: Add "volatile" to asm in native_cpuid()
  x86, msr: msrs_alloc/free for CONFIG_SMP=n
  x86, amd: Get multi-node CPU info from NodeId MSR instead of PCI config space
  x86: Add IA32_TSC_AUX MSR and use it
  x86, msr/cpuid: Register enough minors for the MSR and CPUID drivers
  initramfs: add missing decompressor error check
  bzip2: Add missing checks for malloc returning NULL
  bzip2/lzma/gzip: pre-boot malloc doesn't return NULL on failure
This commit is contained in:
Linus Torvalds 2009-12-19 09:48:14 -08:00
parent aac3d39693 18374d89e5
commit 3981e15286
31 changed files with 307 additions and 320 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
Makefile
View File

@ -16,6 +16,13 @@ NAME = Man-Eating Seals of Antiquity
# o print "Entering directory ...";
MAKEFLAGS += -rR --no-print-directory
# Avoid funny character set dependencies
unexport LC_ALL
LC_CTYPE=C
LC_COLLATE=C
LC_NUMERIC=C
export LC_CTYPE LC_COLLATE LC_NUMERIC
# We are using a recursive build, so we need to do a little thinking
# to get the ordering right.
#

1
arch/x86/include/asm/cpufeature.h
View File

@ -153,6 +153,7 @@
#define X86_FEATURE_SSE5 (6*32+11) /* SSE-5 */
#define X86_FEATURE_SKINIT (6*32+12) /* SKINIT/STGI instructions */
#define X86_FEATURE_WDT (6*32+13) /* Watchdog timer */
#define X86_FEATURE_NODEID_MSR (6*32+19) /* NodeId MSR */
/*
* Auxiliary flags: Linux defined - For features scattered in various

3
arch/x86/include/asm/hw_irq.h
View File

@ -103,7 +103,8 @@ extern int assign_irq_vector(int, struct irq_cfg *, const struct cpumask *);
extern void send_cleanup_vector(struct irq_cfg *);
struct irq_desc;
extern unsigned int set_desc_affinity(struct irq_desc *, const struct cpumask *);
extern unsigned int set_desc_affinity(struct irq_desc *, const struct cpumask *,
unsigned int *dest_id);
extern int IO_APIC_get_PCI_irq_vector(int bus, int devfn, int pin, struct io_apic_irq_attr *irq_attr);
extern void setup_ioapic_dest(void);

2
arch/x86/include/asm/msr-index.h
View File

@ -12,6 +12,7 @@
#define MSR_FS_BASE 0xc0000100 /* 64bit FS base */
#define MSR_GS_BASE 0xc0000101 /* 64bit GS base */
#define MSR_KERNEL_GS_BASE 0xc0000102 /* SwapGS GS shadow */
#define MSR_TSC_AUX 0xc0000103 /* Auxiliary TSC */
/* EFER bits: */
#define _EFER_SCE 0 /* SYSCALL/SYSRET */
@ -123,6 +124,7 @@
#define FAM10H_MMIO_CONF_BUSRANGE_SHIFT 2
#define FAM10H_MMIO_CONF_BASE_MASK 0xfffffff
#define FAM10H_MMIO_CONF_BASE_SHIFT 20
#define MSR_FAM10H_NODE_ID 0xc001100c
/* K8 MSRs */
#define MSR_K8_TOP_MEM1 0xc001001a

16
arch/x86/include/asm/msr.h
View File

@ -27,6 +27,18 @@ struct msr {
};
};
struct msr_info {
u32 msr_no;
struct msr reg;
struct msr *msrs;
int err;
};
struct msr_regs_info {
u32 *regs;
int err;
};
static inline unsigned long long native_read_tscp(unsigned int *aux)
{
unsigned long low, high;
@ -240,9 +252,9 @@ do { \
#define checking_wrmsrl(msr, val) wrmsr_safe((msr), (u32)(val), \
(u32)((val) >> 32))
#define write_tsc(val1, val2) wrmsr(0x10, (val1), (val2))
#define write_tsc(val1, val2) wrmsr(MSR_IA32_TSC, (val1), (val2))
#define write_rdtscp_aux(val) wrmsr(0xc0000103, (val), 0)
#define write_rdtscp_aux(val) wrmsr(MSR_TSC_AUX, (val), 0)
struct msr *msrs_alloc(void);
void msrs_free(struct msr *msrs);

2
arch/x86/include/asm/processor.h
View File

@ -181,7 +181,7 @@ static inline void native_cpuid(unsigned int *eax, unsigned int *ebx,
unsigned int *ecx, unsigned int *edx)
{
/* ecx is often an input as well as an output. */
asm("cpuid"
asm volatile("cpuid"
: "=a" (*eax),
"=b" (*ebx),
"=c" (*ecx),

5
arch/x86/kernel/apic/apic_flat_64.c
View File

@ -306,10 +306,7 @@ physflat_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
if (cpumask_test_cpu(cpu, cpu_online_mask))
break;
}
if (cpu < nr_cpu_ids)
return per_cpu(x86_cpu_to_apicid, cpu);
return BAD_APICID;
return per_cpu(x86_cpu_to_apicid, cpu);
}
struct apic apic_physflat = {

5
arch/x86/kernel/apic/bigsmp_32.c
View File

@ -131,10 +131,7 @@ static unsigned int bigsmp_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
if (cpumask_test_cpu(cpu, cpu_online_mask))
break;
}
if (cpu < nr_cpu_ids)
return bigsmp_cpu_to_logical_apicid(cpu);
return BAD_APICID;
return bigsmp_cpu_to_logical_apicid(cpu);
}
static int bigsmp_phys_pkg_id(int cpuid_apic, int index_msb)

32
arch/x86/kernel/apic/io_apic.c
View File

@ -2276,26 +2276,28 @@ static void __target_IO_APIC_irq(unsigned int irq, unsigned int dest, struct irq
/*
* Either sets desc->affinity to a valid value, and returns
* ->cpu_mask_to_apicid of that, or returns BAD_APICID and
* ->cpu_mask_to_apicid of that in dest_id, or returns -1 and
* leaves desc->affinity untouched.
*/
unsigned int
set_desc_affinity(struct irq_desc *desc, const struct cpumask *mask)
set_desc_affinity(struct irq_desc *desc, const struct cpumask *mask,
unsigned int *dest_id)
{
struct irq_cfg *cfg;
unsigned int irq;
if (!cpumask_intersects(mask, cpu_online_mask))
return BAD_APICID;
return -1;
irq = desc->irq;
cfg = desc->chip_data;
if (assign_irq_vector(irq, cfg, mask))
return BAD_APICID;
return -1;
cpumask_copy(desc->affinity, mask);
return apic->cpu_mask_to_apicid_and(desc->affinity, cfg->domain);
*dest_id = apic->cpu_mask_to_apicid_and(desc->affinity, cfg->domain);
return 0;
}
static int
@ -2311,12 +2313,11 @@ set_ioapic_affinity_irq_desc(struct irq_desc *desc, const struct cpumask *mask)
cfg = desc->chip_data;
spin_lock_irqsave(&ioapic_lock, flags);
dest = set_desc_affinity(desc, mask);
if (dest != BAD_APICID) {
ret = set_desc_affinity(desc, mask, &dest);
if (!ret) {
/* Only the high 8 bits are valid. */
dest = SET_APIC_LOGICAL_ID(dest);
__target_IO_APIC_irq(irq, dest, cfg);
ret = 0;
}
spin_unlock_irqrestore(&ioapic_lock, flags);
@ -3351,8 +3352,7 @@ static int set_msi_irq_affinity(unsigned int irq, const struct cpumask *mask)
struct msi_msg msg;
unsigned int dest;
dest = set_desc_affinity(desc, mask);
if (dest == BAD_APICID)
if (set_desc_affinity(desc, mask, &dest))
return -1;
cfg = desc->chip_data;
@ -3384,8 +3384,7 @@ ir_set_msi_irq_affinity(unsigned int irq, const struct cpumask *mask)
if (get_irte(irq, &irte))
return -1;
dest = set_desc_affinity(desc, mask);
if (dest == BAD_APICID)
if (set_desc_affinity(desc, mask, &dest))
return -1;
irte.vector = cfg->vector;
@ -3567,8 +3566,7 @@ static int dmar_msi_set_affinity(unsigned int irq, const struct cpumask *mask)
struct msi_msg msg;
unsigned int dest;
dest = set_desc_affinity(desc, mask);
if (dest == BAD_APICID)
if (set_desc_affinity(desc, mask, &dest))
return -1;
cfg = desc->chip_data;
@ -3623,8 +3621,7 @@ static int hpet_msi_set_affinity(unsigned int irq, const struct cpumask *mask)
struct msi_msg msg;
unsigned int dest;
dest = set_desc_affinity(desc, mask);
if (dest == BAD_APICID)
if (set_desc_affinity(desc, mask, &dest))
return -1;
cfg = desc->chip_data;
@ -3730,8 +3727,7 @@ static int set_ht_irq_affinity(unsigned int irq, const struct cpumask *mask)
struct irq_cfg *cfg;
unsigned int dest;
dest = set_desc_affinity(desc, mask);
if (dest == BAD_APICID)
if (set_desc_affinity(desc, mask, &dest))
return -1;
cfg = desc->chip_data;

5
arch/x86/kernel/apic/x2apic_cluster.c
View File

@ -148,10 +148,7 @@ x2apic_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
break;
}
if (cpu < nr_cpu_ids)
return per_cpu(x86_cpu_to_logical_apicid, cpu);
return BAD_APICID;
return per_cpu(x86_cpu_to_logical_apicid, cpu);
}
static unsigned int x2apic_cluster_phys_get_apic_id(unsigned long x)

5
arch/x86/kernel/apic/x2apic_phys.c
View File

@ -146,10 +146,7 @@ x2apic_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
break;
}
if (cpu < nr_cpu_ids)
return per_cpu(x86_cpu_to_apicid, cpu);
return BAD_APICID;
return per_cpu(x86_cpu_to_apicid, cpu);
}
static unsigned int x2apic_phys_get_apic_id(unsigned long x)

5
arch/x86/kernel/apic/x2apic_uv_x.c
View File

@ -225,10 +225,7 @@ uv_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
if (cpumask_test_cpu(cpu, cpu_online_mask))
break;
}
if (cpu < nr_cpu_ids)
return per_cpu(x86_cpu_to_apicid, cpu);
return BAD_APICID;
return per_cpu(x86_cpu_to_apicid, cpu);
}
static unsigned int x2apic_get_apic_id(unsigned long x)

53
arch/x86/kernel/cpu/amd.c
View File

@ -254,59 +254,36 @@ static int __cpuinit nearby_node(int apicid)
/*
* Fixup core topology information for AMD multi-node processors.
* Assumption 1: Number of cores in each internal node is the same.
* Assumption 2: Mixed systems with both single-node and dual-node
* processors are not supported.
* Assumption: Number of cores in each internal node is the same.
*/
#ifdef CONFIG_X86_HT
static void __cpuinit amd_fixup_dcm(struct cpuinfo_x86 *c)
{
#ifdef CONFIG_PCI
u32 t, cpn;
u8 n, n_id;
unsigned long long value;
u32 nodes, cores_per_node;
int cpu = smp_processor_id();
if (!cpu_has(c, X86_FEATURE_NODEID_MSR))
return;
/* fixup topology information only once for a core */
if (cpu_has(c, X86_FEATURE_AMD_DCM))
return;
/* check for multi-node processor on boot cpu */
t = read_pci_config(0, 24, 3, 0xe8);
if (!(t & (1 << 29)))
rdmsrl(MSR_FAM10H_NODE_ID, value);
nodes = ((value >> 3) & 7) + 1;
if (nodes == 1)
return;
set_cpu_cap(c, X86_FEATURE_AMD_DCM);
cores_per_node = c->x86_max_cores / nodes;
/* cores per node: each internal node has half the number of cores */
cpn = c->x86_max_cores >> 1;
/* store NodeID, use llc_shared_map to store sibling info */
per_cpu(cpu_llc_id, cpu) = value & 7;
/* even-numbered NB_id of this dual-node processor */
n = c->phys_proc_id << 1;
/*
* determine internal node id and assign cores fifty-fifty to
* each node of the dual-node processor
*/
t = read_pci_config(0, 24 + n, 3, 0xe8);
n = (t>>30) & 0x3;
if (n == 0) {
if (c->cpu_core_id < cpn)
n_id = 0;
else
n_id = 1;
} else {
if (c->cpu_core_id < cpn)
n_id = 1;
else
n_id = 0;
}
/* compute entire NodeID, use llc_shared_map to store sibling info */
per_cpu(cpu_llc_id, cpu) = (c->phys_proc_id << 1) + n_id;
/* fixup core id to be in range from 0 to cpn */
c->cpu_core_id = c->cpu_core_id % cpn;
#endif
/* fixup core id to be in range from 0 to (cores_per_node - 1) */
c->cpu_core_id = c->cpu_core_id % cores_per_node;
}
#endif

1
arch/x86/kernel/cpu/intel.c
View File

@ -70,7 +70,6 @@ static void __cpuinit early_init_intel(struct cpuinfo_x86 *c)
if (c->x86_power & (1 << 8)) {
set_cpu_cap(c, X86_FEATURE_CONSTANT_TSC);
set_cpu_cap(c, X86_FEATURE_NONSTOP_TSC);
set_cpu_cap(c, X86_FEATURE_TSC_RELIABLE);
sched_clock_stable = 1;
}

5
arch/x86/kernel/cpuid.c
View File

@ -187,7 +187,8 @@ static int __init cpuid_init(void)
int i, err = 0;
i = 0;
if (register_chrdev(CPUID_MAJOR, "cpu/cpuid", &cpuid_fops)) {
if (__register_chrdev(CPUID_MAJOR, 0, NR_CPUS,
"cpu/cpuid", &cpuid_fops)) {
printk(KERN_ERR "cpuid: unable to get major %d for cpuid\n",
CPUID_MAJOR);
err = -EBUSY;
@ -216,7 +217,7 @@ out_class:
}
class_destroy(cpuid_class);
out_chrdev:
unregister_chrdev(CPUID_MAJOR, "cpu/cpuid");
__unregister_chrdev(CPUID_MAJOR, 0, NR_CPUS, "cpu/cpuid");
out:
return err;
}

2
arch/x86/kernel/e820.c
View File

@ -724,7 +724,7 @@ core_initcall(e820_mark_nvs_memory);
/*
* Early reserved memory areas.
*/
#define MAX_EARLY_RES 20
#define MAX_EARLY_RES 32
struct early_res {
u64 start, end;

4
arch/x86/kernel/msr.c
View File

@ -246,7 +246,7 @@ static int __init msr_init(void)
int i, err = 0;
i = 0;
if (register_chrdev(MSR_MAJOR, "cpu/msr", &msr_fops)) {
if (__register_chrdev(MSR_MAJOR, 0, NR_CPUS, "cpu/msr", &msr_fops)) {
printk(KERN_ERR "msr: unable to get major %d for msr\n",
MSR_MAJOR);
err = -EBUSY;
@ -274,7 +274,7 @@ out_class:
msr_device_destroy(i);
class_destroy(msr_class);
out_chrdev:
unregister_chrdev(MSR_MAJOR, "cpu/msr");
__unregister_chrdev(MSR_MAJOR, 0, NR_CPUS, "cpu/msr");
out:
return err;
}

1
arch/x86/kernel/tsc.c
View File

@ -763,6 +763,7 @@ void mark_tsc_unstable(char *reason)
{
if (!tsc_unstable) {
tsc_unstable = 1;
sched_clock_stable = 0;
printk(KERN_INFO "Marking TSC unstable due to %s\n", reason);
/* Change only the rating, when not registered */
if (clocksource_tsc.mult)

3
arch/x86/kernel/uv_irq.c
View File

@ -215,8 +215,7 @@ static int uv_set_irq_affinity(unsigned int irq, const struct cpumask *mask)
unsigned long mmr_offset;
unsigned mmr_pnode;
dest = set_desc_affinity(desc, mask);
if (dest == BAD_APICID)
if (set_desc_affinity(desc, mask, &dest))
return -1;
mmr_value = 0;

4
arch/x86/lib/Makefile
View File

@ -14,7 +14,7 @@ $(obj)/inat.o: $(obj)/inat-tables.c
clean-files := inat-tables.c
obj-$(CONFIG_SMP) := msr.o
obj-$(CONFIG_SMP) += msr-smp.o
lib-y := delay.o
lib-y += thunk_$(BITS).o
@ -22,7 +22,7 @@ lib-y += usercopy_$(BITS).o getuser.o putuser.o
lib-y += memcpy_$(BITS).o
lib-$(CONFIG_KPROBES) += insn.o inat.o
obj-y += msr-reg.o msr-reg-export.o
obj-y += msr.o msr-reg.o msr-reg-export.o
ifeq ($(CONFIG_X86_32),y)
obj-y += atomic64_32.o

204
arch/x86/lib/msr-smp.c Normal file
View File

@ -0,0 +1,204 @@
#include <linux/module.h>
#include <linux/preempt.h>
#include <linux/smp.h>
#include <asm/msr.h>
static void __rdmsr_on_cpu(void *info)
{
struct msr_info *rv = info;
struct msr *reg;
int this_cpu = raw_smp_processor_id();
if (rv->msrs)
reg = per_cpu_ptr(rv->msrs, this_cpu);
else
reg = &rv->reg;
rdmsr(rv->msr_no, reg->l, reg->h);
}
static void __wrmsr_on_cpu(void *info)
{
struct msr_info *rv = info;
struct msr *reg;
int this_cpu = raw_smp_processor_id();
if (rv->msrs)
reg = per_cpu_ptr(rv->msrs, this_cpu);
else
reg = &rv->reg;
wrmsr(rv->msr_no, reg->l, reg->h);
}
int rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h)
{
int err;
struct msr_info rv;
memset(&rv, 0, sizeof(rv));
rv.msr_no = msr_no;
err = smp_call_function_single(cpu, __rdmsr_on_cpu, &rv, 1);
*l = rv.reg.l;
*h = rv.reg.h;
return err;
}
EXPORT_SYMBOL(rdmsr_on_cpu);
int wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h)
{
int err;
struct msr_info rv;
memset(&rv, 0, sizeof(rv));
rv.msr_no = msr_no;
rv.reg.l = l;
rv.reg.h = h;
err = smp_call_function_single(cpu, __wrmsr_on_cpu, &rv, 1);
return err;
}
EXPORT_SYMBOL(wrmsr_on_cpu);
static void __rwmsr_on_cpus(const struct cpumask *mask, u32 msr_no,
struct msr *msrs,
void (*msr_func) (void *info))
{
struct msr_info rv;
int this_cpu;
memset(&rv, 0, sizeof(rv));
rv.msrs = msrs;
rv.msr_no = msr_no;
this_cpu = get_cpu();
if (cpumask_test_cpu(this_cpu, mask))
msr_func(&rv);
smp_call_function_many(mask, msr_func, &rv, 1);
put_cpu();
}
/* rdmsr on a bunch of CPUs
*
* @mask: which CPUs
* @msr_no: which MSR
* @msrs: array of MSR values
*
*/
void rdmsr_on_cpus(const struct cpumask *mask, u32 msr_no, struct msr *msrs)
{
__rwmsr_on_cpus(mask, msr_no, msrs, __rdmsr_on_cpu);
}
EXPORT_SYMBOL(rdmsr_on_cpus);
/*
* wrmsr on a bunch of CPUs
*
* @mask: which CPUs
* @msr_no: which MSR
* @msrs: array of MSR values
*
*/
void wrmsr_on_cpus(const struct cpumask *mask, u32 msr_no, struct msr *msrs)
{
__rwmsr_on_cpus(mask, msr_no, msrs, __wrmsr_on_cpu);
}
EXPORT_SYMBOL(wrmsr_on_cpus);
/* These "safe" variants are slower and should be used when the target MSR
may not actually exist. */
static void __rdmsr_safe_on_cpu(void *info)
{
struct msr_info *rv = info;
rv->err = rdmsr_safe(rv->msr_no, &rv->reg.l, &rv->reg.h);
}
static void __wrmsr_safe_on_cpu(void *info)
{
struct msr_info *rv = info;
rv->err = wrmsr_safe(rv->msr_no, rv->reg.l, rv->reg.h);
}
int rdmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h)
{
int err;
struct msr_info rv;
memset(&rv, 0, sizeof(rv));
rv.msr_no = msr_no;
err = smp_call_function_single(cpu, __rdmsr_safe_on_cpu, &rv, 1);
*l = rv.reg.l;
*h = rv.reg.h;
return err ? err : rv.err;
}
EXPORT_SYMBOL(rdmsr_safe_on_cpu);
int wrmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h)
{
int err;
struct msr_info rv;
memset(&rv, 0, sizeof(rv));
rv.msr_no = msr_no;
rv.reg.l = l;
rv.reg.h = h;
err = smp_call_function_single(cpu, __wrmsr_safe_on_cpu, &rv, 1);
return err ? err : rv.err;
}
EXPORT_SYMBOL(wrmsr_safe_on_cpu);
/*
* These variants are significantly slower, but allows control over
* the entire 32-bit GPR set.
*/
static void __rdmsr_safe_regs_on_cpu(void *info)
{
struct msr_regs_info *rv = info;
rv->err = rdmsr_safe_regs(rv->regs);
}
static void __wrmsr_safe_regs_on_cpu(void *info)
{
struct msr_regs_info *rv = info;
rv->err = wrmsr_safe_regs(rv->regs);
}
int rdmsr_safe_regs_on_cpu(unsigned int cpu, u32 *regs)
{
int err;
struct msr_regs_info rv;
rv.regs = regs;
rv.err = -EIO;
err = smp_call_function_single(cpu, __rdmsr_safe_regs_on_cpu, &rv, 1);
return err ? err : rv.err;
}
EXPORT_SYMBOL(rdmsr_safe_regs_on_cpu);
int wrmsr_safe_regs_on_cpu(unsigned int cpu, u32 *regs)
{
int err;
struct msr_regs_info rv;
rv.regs = regs;
rv.err = -EIO;
err = smp_call_function_single(cpu, __wrmsr_safe_regs_on_cpu, &rv, 1);
return err ? err : rv.err;
}
EXPORT_SYMBOL(wrmsr_safe_regs_on_cpu);

213
arch/x86/lib/msr.c
View File

@ -1,123 +1,7 @@
#include <linux/module.h>
#include <linux/preempt.h>
#include <linux/smp.h>
#include <asm/msr.h>
struct msr_info {
u32 msr_no;
struct msr reg;
struct msr *msrs;
int err;
};
static void __rdmsr_on_cpu(void *info)
{
struct msr_info *rv = info;
struct msr *reg;
int this_cpu = raw_smp_processor_id();
if (rv->msrs)
reg = per_cpu_ptr(rv->msrs, this_cpu);
else
reg = &rv->reg;
rdmsr(rv->msr_no, reg->l, reg->h);
}
static void __wrmsr_on_cpu(void *info)
{
struct msr_info *rv = info;
struct msr *reg;
int this_cpu = raw_smp_processor_id();
if (rv->msrs)
reg = per_cpu_ptr(rv->msrs, this_cpu);
else
reg = &rv->reg;
wrmsr(rv->msr_no, reg->l, reg->h);
}
int rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h)
{
int err;
struct msr_info rv;
memset(&rv, 0, sizeof(rv));
rv.msr_no = msr_no;
err = smp_call_function_single(cpu, __rdmsr_on_cpu, &rv, 1);
*l = rv.reg.l;
*h = rv.reg.h;
return err;
}
EXPORT_SYMBOL(rdmsr_on_cpu);
int wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h)
{
int err;
struct msr_info rv;
memset(&rv, 0, sizeof(rv));
rv.msr_no = msr_no;
rv.reg.l = l;
rv.reg.h = h;
err = smp_call_function_single(cpu, __wrmsr_on_cpu, &rv, 1);
return err;
}
EXPORT_SYMBOL(wrmsr_on_cpu);
static void __rwmsr_on_cpus(const struct cpumask *mask, u32 msr_no,
struct msr *msrs,
void (*msr_func) (void *info))
{
struct msr_info rv;
int this_cpu;
memset(&rv, 0, sizeof(rv));
rv.msrs = msrs;
rv.msr_no = msr_no;
this_cpu = get_cpu();
if (cpumask_test_cpu(this_cpu, mask))
msr_func(&rv);
smp_call_function_many(mask, msr_func, &rv, 1);
put_cpu();
}
/* rdmsr on a bunch of CPUs
*
* @mask: which CPUs
* @msr_no: which MSR
* @msrs: array of MSR values
*
*/
void rdmsr_on_cpus(const struct cpumask *mask, u32 msr_no, struct msr *msrs)
{
__rwmsr_on_cpus(mask, msr_no, msrs, __rdmsr_on_cpu);
}
EXPORT_SYMBOL(rdmsr_on_cpus);
/*
* wrmsr on a bunch of CPUs
*
* @mask: which CPUs
* @msr_no: which MSR
* @msrs: array of MSR values
*
*/
void wrmsr_on_cpus(const struct cpumask *mask, u32 msr_no, struct msr *msrs)
{
__rwmsr_on_cpus(mask, msr_no, msrs, __wrmsr_on_cpu);
}
EXPORT_SYMBOL(wrmsr_on_cpus);
struct msr *msrs_alloc(void)
{
struct msr *msrs = NULL;
@ -137,100 +21,3 @@ void msrs_free(struct msr *msrs)
free_percpu(msrs);
}
EXPORT_SYMBOL(msrs_free);
/* These "safe" variants are slower and should be used when the target MSR
may not actually exist. */
static void __rdmsr_safe_on_cpu(void *info)
{
struct msr_info *rv = info;
rv->err = rdmsr_safe(rv->msr_no, &rv->reg.l, &rv->reg.h);
}
static void __wrmsr_safe_on_cpu(void *info)
{
struct msr_info *rv = info;
rv->err = wrmsr_safe(rv->msr_no, rv->reg.l, rv->reg.h);
}
int rdmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h)
{
int err;
struct msr_info rv;
memset(&rv, 0, sizeof(rv));
rv.msr_no = msr_no;
err = smp_call_function_single(cpu, __rdmsr_safe_on_cpu, &rv, 1);
*l = rv.reg.l;
*h = rv.reg.h;
return err ? err : rv.err;
}
EXPORT_SYMBOL(rdmsr_safe_on_cpu);
int wrmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h)
{
int err;
struct msr_info rv;
memset(&rv, 0, sizeof(rv));
rv.msr_no = msr_no;
rv.reg.l = l;
rv.reg.h = h;
err = smp_call_function_single(cpu, __wrmsr_safe_on_cpu, &rv, 1);
return err ? err : rv.err;
}
EXPORT_SYMBOL(wrmsr_safe_on_cpu);
/*
* These variants are significantly slower, but allows control over
* the entire 32-bit GPR set.
*/
struct msr_regs_info {
u32 *regs;
int err;
};
static void __rdmsr_safe_regs_on_cpu(void *info)
{
struct msr_regs_info *rv = info;
rv->err = rdmsr_safe_regs(rv->regs);
}
static void __wrmsr_safe_regs_on_cpu(void *info)
{
struct msr_regs_info *rv = info;
rv->err = wrmsr_safe_regs(rv->regs);
}
int rdmsr_safe_regs_on_cpu(unsigned int cpu, u32 *regs)
{
int err;
struct msr_regs_info rv;
rv.regs = regs;
rv.err = -EIO;
err = smp_call_function_single(cpu, __rdmsr_safe_regs_on_cpu, &rv, 1);
return err ? err : rv.err;
}
EXPORT_SYMBOL(rdmsr_safe_regs_on_cpu);
int wrmsr_safe_regs_on_cpu(unsigned int cpu, u32 *regs)
{
int err;
struct msr_regs_info rv;
rv.regs = regs;
rv.err = -EIO;
err = smp_call_function_single(cpu, __wrmsr_safe_regs_on_cpu, &rv, 1);
return err ? err : rv.err;
}
EXPORT_SYMBOL(wrmsr_safe_regs_on_cpu);

2
arch/x86/mm/srat_32.c
View File

@ -267,6 +267,8 @@ int __init get_memcfg_from_srat(void)
e820_register_active_regions(chunk->nid, chunk->start_pfn,
min(chunk->end_pfn, max_pfn));
}
/* for out of order entries in SRAT */
sort_node_map();
for_each_online_node(nid) {
unsigned long start = node_start_pfn[nid];

4
arch/x86/mm/srat_64.c
View File

@ -317,7 +317,7 @@ static int __init nodes_cover_memory(const struct bootnode *nodes)
unsigned long s = nodes[i].start >> PAGE_SHIFT;
unsigned long e = nodes[i].end >> PAGE_SHIFT;
pxmram += e - s;
pxmram -= absent_pages_in_range(s, e);
pxmram -= __absent_pages_in_range(i, s, e);
if ((long)pxmram < 0)
pxmram = 0;
}
@ -373,6 +373,8 @@ int __init acpi_scan_nodes(unsigned long start, unsigned long end)
for_each_node_mask(i, nodes_parsed)
e820_register_active_regions(i, nodes[i].start >> PAGE_SHIFT,
nodes[i].end >> PAGE_SHIFT);
/* for out of order entries in SRAT */
sort_node_map();
if (!nodes_cover_memory(nodes)) {
bad_srat();
return -1;

2
arch/x86/tools/chkobjdump.awk
View File

@ -9,7 +9,7 @@ BEGIN {
}
/^GNU/ {
split($4, ver, ".");
split($3, ver, ".");
if (ver[1] > od_ver ||
(ver[1] == od_ver && ver[2] >= od_sver)) {
exit 1;

10
arch/x86/tools/gen-insn-attr-x86.awk
View File

@ -6,8 +6,6 @@
# Awk implementation sanity check
function check_awk_implement() {
if (!match("abc", "[[:lower:]]+"))
return "Your awk doesn't support charactor-class."
if (sprintf("%x", 0) != "0")
return "Your awk has a printf-format problem."
return ""
@ -44,12 +42,12 @@ BEGIN {
delete gtable
delete atable
opnd_expr = "^[[:alpha:]/]"
opnd_expr = "^[A-Za-z/]"
ext_expr = "^\\("
sep_expr = "^\\|$"
group_expr = "^Grp[[:alnum:]]+"
group_expr = "^Grp[0-9A-Za-z]+"
imm_expr = "^[IJAO][[:lower:]]"
imm_expr = "^[IJAO][a-z]"
imm_flag["Ib"] = "INAT_MAKE_IMM(INAT_IMM_BYTE)"
imm_flag["Jb"] = "INAT_MAKE_IMM(INAT_IMM_BYTE)"
imm_flag["Iw"] = "INAT_MAKE_IMM(INAT_IMM_WORD)"
@ -62,7 +60,7 @@ BEGIN {
imm_flag["Ob"] = "INAT_MOFFSET"
imm_flag["Ov"] = "INAT_MOFFSET"
modrm_expr = "^([CDEGMNPQRSUVW/][[:lower:]]+|NTA|T[012])"
modrm_expr = "^([CDEGMNPQRSUVW/][a-z]+|NTA|T[012])"
force64_expr = "\\([df]64\\)"
rex_expr = "^REX(\\.[XRWB]+)*"
fpu_expr = "^ESC" # TODO

4
include/linux/decompress/mm.h
View File

@ -25,7 +25,7 @@ static void *malloc(int size)
void *p;
if (size < 0)
error("Malloc error");
return NULL;
if (!malloc_ptr)
malloc_ptr = free_mem_ptr;
@ -35,7 +35,7 @@ static void *malloc(int size)
malloc_ptr += size;
if (free_mem_end_ptr && malloc_ptr >= free_mem_end_ptr)
error("Out of memory");
return NULL;
malloc_count++;
return p;

3
include/linux/mm.h
View File

@ -1037,6 +1037,9 @@ extern void add_active_range(unsigned int nid, unsigned long start_pfn,
extern void remove_active_range(unsigned int nid, unsigned long start_pfn,
unsigned long end_pfn);
extern void remove_all_active_ranges(void);
void sort_node_map(void);
unsigned long __absent_pages_in_range(int nid, unsigned long start_pfn,
unsigned long end_pfn);
extern unsigned long absent_pages_in_range(unsigned long start_pfn,
unsigned long end_pfn);
extern void get_pfn_range_for_nid(unsigned int nid,

10
init/initramfs.c
View File

@ -413,7 +413,7 @@ static unsigned my_inptr; /* index of next byte to be processed in inbuf */
static char * __init unpack_to_rootfs(char *buf, unsigned len)
{
int written;
int written, res;
decompress_fn decompress;
const char *compress_name;
static __initdata char msg_buf[64];
@ -445,10 +445,12 @@ static char * __init unpack_to_rootfs(char *buf, unsigned len)
}
this_header = 0;
decompress = decompress_method(buf, len, &compress_name);
if (decompress)
decompress(buf, len, NULL, flush_buffer, NULL,
if (decompress) {
res = decompress(buf, len, NULL, flush_buffer, NULL,
&my_inptr, error);
else if (compress_name) {
if (res)
error("decompressor failed");
} else if (compress_name) {
if (!message) {
snprintf(msg_buf, sizeof msg_buf,
"compression method %s not configured",

10
lib/decompress_bunzip2.c
View File

@ -637,6 +637,8 @@ static int INIT start_bunzip(struct bunzip_data **bdp, void *inbuf, int len,
/* Allocate bunzip_data. Most fields initialize to zero. */
bd = *bdp = malloc(i);
if (!bd)
return RETVAL_OUT_OF_MEMORY;
memset(bd, 0, sizeof(struct bunzip_data));
/* Setup input buffer */
bd->inbuf = inbuf;
@ -664,6 +666,8 @@ static int INIT start_bunzip(struct bunzip_data **bdp, void *inbuf, int len,
bd->dbufSize = 100000*(i-BZh0);
bd->dbuf = large_malloc(bd->dbufSize * sizeof(int));
if (!bd->dbuf)
return RETVAL_OUT_OF_MEMORY;
return RETVAL_OK;
}
@ -686,7 +690,7 @@ STATIC int INIT bunzip2(unsigned char *buf, int len,
if (!outbuf) {
error("Could not allocate output bufer");
return -1;
return RETVAL_OUT_OF_MEMORY;
}
if (buf)
inbuf = buf;
@ -694,6 +698,7 @@ STATIC int INIT bunzip2(unsigned char *buf, int len,
inbuf = malloc(BZIP2_IOBUF_SIZE);
if (!inbuf) {
error("Could not allocate input bufer");
i = RETVAL_OUT_OF_MEMORY;
goto exit_0;
}
i = start_bunzip(&bd, inbuf, len, fill);
@ -720,11 +725,14 @@ STATIC int INIT bunzip2(unsigned char *buf, int len,
} else if (i == RETVAL_UNEXPECTED_OUTPUT_EOF) {
error("Compressed file ends unexpectedly");
}
if (!bd)
goto exit_1;
if (bd->dbuf)
large_free(bd->dbuf);
if (pos)
*pos = bd->inbufPos;
free(bd);
exit_1:
if (!buf)
free(inbuf);
exit_0:

4
mm/page_alloc.c
View File

@ -3579,7 +3579,7 @@ static unsigned long __meminit zone_spanned_pages_in_node(int nid,
* Return the number of holes in a range on a node. If nid is MAX_NUMNODES,
* then all holes in the requested range will be accounted for.
*/
static unsigned long __meminit __absent_pages_in_range(int nid,
unsigned long __meminit __absent_pages_in_range(int nid,
unsigned long range_start_pfn,
unsigned long range_end_pfn)
{
@ -4108,7 +4108,7 @@ static int __init cmp_node_active_region(const void *a, const void *b)
}
/* sort the node_map by start_pfn */
static void __init sort_node_map(void)
void __init sort_node_map(void)
{
sort(early_node_map, (size_t)nr_nodemap_entries,
sizeof(struct node_active_region),