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Message-ID: <20091218185631.GA15747@elte.hu>
Date: Fri, 18 Dec 2009 19:56:31 +0100
From: Ingo Molnar <mingo@...e.hu>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: linux-kernel@...r.kernel.org, "H. Peter Anvin" <hpa@...or.com>,
Thomas Gleixner <tglx@...utronix.de>,
Andrew Morton <akpm@...ux-foundation.org>
Subject: [GIT PULL] x86 fixes
Linus,
Please pull the latest x86-fixes-for-linus git tree from:
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip.git x86-fixes-for-linus
out-of-topic modifications in x86-fixes-for-linus:
--------------------------------------------------
Makefile # 06b5dc6: Makefile: Unexport LC_ALL instead
# c051346: Makefile: set LC_CTYPE, LC_COLLAT
include/linux/decompress/mm.h # c1e7c3a: bzip2/lzma/gzip: pre-boot malloc
include/linux/mm.h # 3299625: x86: Fix checking of SRAT when no
init/initramfs.c # 5429136: initramfs: add missing decompress
lib/decompress_bunzip2.c # d452986: bzip2: Add missing checks for mal
mm/page_alloc.c # 3299625: x86: Fix checking of SRAT when no
Thanks,
Ingo
------------------>
Andreas Herrmann (1):
x86, amd: Get multi-node CPU info from NodeId MSR instead of PCI config space
Borislav Petkov (1):
x86, msr: msrs_alloc/free for CONFIG_SMP=n
H. Peter Anvin (3):
x86, msr/cpuid: Register enough minors for the MSR and CPUID drivers
Makefile: set LC_CTYPE, LC_COLLATE, LC_NUMERIC to C
Makefile: Unexport LC_ALL instead of clearing it
Pallipadi, Venkatesh (1):
x86: Reenable TSC sync check at boot, even with NONSTOP_TSC
Phillip Lougher (3):
bzip2/lzma/gzip: pre-boot malloc doesn't return NULL on failure
bzip2: Add missing checks for malloc returning NULL
initramfs: add missing decompressor error check
Roland Dreier (1):
x86: Don't use POSIX character classes in gen-insn-attr-x86.awk
Sheng Yang (1):
x86: Add IA32_TSC_AUX MSR and use it
Suresh Siddha (2):
x86, cpuid: Add "volatile" to asm in native_cpuid()
x86, irq: Allow 0xff for /proc/irq/[n]/smp_affinity on an 8-cpu system
Yinghai Lu (2):
x86: Fix checking of SRAT when node 0 ram is not from 0
x86: Increase MAX_EARLY_RES; insufficient on 32-bit NUMA
akpm@...ux-foundation.org (1):
x86: Fix objdump version check in arch/x86/tools/chkobjdump.awk
Makefile | 7 +
arch/x86/include/asm/cpufeature.h | 1 +
arch/x86/include/asm/hw_irq.h | 3 +-
arch/x86/include/asm/msr-index.h | 2 +
arch/x86/include/asm/msr.h | 16 ++-
arch/x86/include/asm/processor.h | 2 +-
arch/x86/kernel/apic/apic_flat_64.c | 5 +-
arch/x86/kernel/apic/bigsmp_32.c | 5 +-
arch/x86/kernel/apic/io_apic.c | 32 ++---
arch/x86/kernel/apic/x2apic_cluster.c | 5 +-
arch/x86/kernel/apic/x2apic_phys.c | 5 +-
arch/x86/kernel/apic/x2apic_uv_x.c | 5 +-
arch/x86/kernel/cpu/amd.c | 53 +++------
arch/x86/kernel/cpu/intel.c | 1 -
arch/x86/kernel/cpuid.c | 5 +-
arch/x86/kernel/e820.c | 2 +-
arch/x86/kernel/msr.c | 4 +-
arch/x86/kernel/tsc.c | 1 +
arch/x86/kernel/uv_irq.c | 3 +-
arch/x86/lib/Makefile | 4 +-
arch/x86/lib/msr-smp.c | 204 +++++++++++++++++++++++++++++++
arch/x86/lib/msr.c | 213 ---------------------------------
arch/x86/mm/srat_32.c | 2 +
arch/x86/mm/srat_64.c | 4 +-
arch/x86/tools/chkobjdump.awk | 2 +-
arch/x86/tools/gen-insn-attr-x86.awk | 10 +-
include/linux/decompress/mm.h | 4 +-
include/linux/mm.h | 3 +
init/initramfs.c | 10 +-
lib/decompress_bunzip2.c | 10 ++-
mm/page_alloc.c | 4 +-
31 files changed, 307 insertions(+), 320 deletions(-)
create mode 100644 arch/x86/lib/msr-smp.c
diff --git a/Makefile b/Makefile
index 33d4732..5e92ca5 100644
--- a/Makefile
+++ b/Makefile
@@ -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.
#
diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h
index 613700f..637e1ec 100644
--- a/arch/x86/include/asm/cpufeature.h
+++ b/arch/x86/include/asm/cpufeature.h
@@ -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
diff --git a/arch/x86/include/asm/hw_irq.h b/arch/x86/include/asm/hw_irq.h
index 08c48a8..eeac829 100644
--- a/arch/x86/include/asm/hw_irq.h
+++ b/arch/x86/include/asm/hw_irq.h
@@ -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);
diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h
index 4ffe09b..1cd58cd 100644
--- a/arch/x86/include/asm/msr-index.h
+++ b/arch/x86/include/asm/msr-index.h
@@ -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
diff --git a/arch/x86/include/asm/msr.h b/arch/x86/include/asm/msr.h
index 2d228fc..c5bc4c2 100644
--- a/arch/x86/include/asm/msr.h
+++ b/arch/x86/include/asm/msr.h
@@ -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);
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index 6f8ec1c..fc801ba 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -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),
diff --git a/arch/x86/kernel/apic/apic_flat_64.c b/arch/x86/kernel/apic/apic_flat_64.c
index d0c99ab..eacbd2b 100644
--- a/arch/x86/kernel/apic/apic_flat_64.c
+++ b/arch/x86/kernel/apic/apic_flat_64.c
@@ -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 = {
diff --git a/arch/x86/kernel/apic/bigsmp_32.c b/arch/x86/kernel/apic/bigsmp_32.c
index 38dcecf..cb804c5 100644
--- a/arch/x86/kernel/apic/bigsmp_32.c
+++ b/arch/x86/kernel/apic/bigsmp_32.c
@@ -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)
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index d5d498f..98ced70 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -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;
diff --git a/arch/x86/kernel/apic/x2apic_cluster.c b/arch/x86/kernel/apic/x2apic_cluster.c
index a5371ec..cf69c59 100644
--- a/arch/x86/kernel/apic/x2apic_cluster.c
+++ b/arch/x86/kernel/apic/x2apic_cluster.c
@@ -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)
diff --git a/arch/x86/kernel/apic/x2apic_phys.c b/arch/x86/kernel/apic/x2apic_phys.c
index a8989aa..8972f38 100644
--- a/arch/x86/kernel/apic/x2apic_phys.c
+++ b/arch/x86/kernel/apic/x2apic_phys.c
@@ -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)
diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index b684bb3..d56b0ef 100644
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -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)
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index 8dc3ea1..e485825 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -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
diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
index 9c31e8b..879666f 100644
--- a/arch/x86/kernel/cpu/intel.c
+++ b/arch/x86/kernel/cpu/intel.c
@@ -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;
}
diff --git a/arch/x86/kernel/cpuid.c b/arch/x86/kernel/cpuid.c
index 7ef24a7..cb27fd6 100644
--- a/arch/x86/kernel/cpuid.c
+++ b/arch/x86/kernel/cpuid.c
@@ -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;
}
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index f50447d..05ed7ab 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -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;
diff --git a/arch/x86/kernel/msr.c b/arch/x86/kernel/msr.c
index 572b07e..4bd93c9 100644
--- a/arch/x86/kernel/msr.c
+++ b/arch/x86/kernel/msr.c
@@ -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;
}
diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c
index cd982f4..597683a 100644
--- a/arch/x86/kernel/tsc.c
+++ b/arch/x86/kernel/tsc.c
@@ -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)
diff --git a/arch/x86/kernel/uv_irq.c b/arch/x86/kernel/uv_irq.c
index 61d805d..ece73d8 100644
--- a/arch/x86/kernel/uv_irq.c
+++ b/arch/x86/kernel/uv_irq.c
@@ -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;
diff --git a/arch/x86/lib/Makefile b/arch/x86/lib/Makefile
index a2d6472..706be8b 100644
--- a/arch/x86/lib/Makefile
+++ b/arch/x86/lib/Makefile
@@ -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-y += 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
diff --git a/arch/x86/lib/msr-smp.c b/arch/x86/lib/msr-smp.c
new file mode 100644
index 0000000..a6b1b86
--- /dev/null
+++ b/arch/x86/lib/msr-smp.c
@@ -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);
diff --git a/arch/x86/lib/msr.c b/arch/x86/lib/msr.c
index 8728341..8f8eebd 100644
--- a/arch/x86/lib/msr.c
+++ b/arch/x86/lib/msr.c
@@ -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);
diff --git a/arch/x86/mm/srat_32.c b/arch/x86/mm/srat_32.c
index 6f8aa33..9324f13 100644
--- a/arch/x86/mm/srat_32.c
+++ b/arch/x86/mm/srat_32.c
@@ -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];
diff --git a/arch/x86/mm/srat_64.c b/arch/x86/mm/srat_64.c
index d890754..a271241 100644
--- a/arch/x86/mm/srat_64.c
+++ b/arch/x86/mm/srat_64.c
@@ -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;
diff --git a/arch/x86/tools/chkobjdump.awk b/arch/x86/tools/chkobjdump.awk
index 0d13cd9..5bbb5a3 100644
--- a/arch/x86/tools/chkobjdump.awk
+++ b/arch/x86/tools/chkobjdump.awk
@@ -9,7 +9,7 @@ BEGIN {
}
/^GNU/ {
- split($4, ver, ".");
+ split($3, ver, ".");
if (ver[1] > od_ver ||
(ver[1] == od_ver && ver[2] >= od_sver)) {
exit 1;
diff --git a/arch/x86/tools/gen-insn-attr-x86.awk b/arch/x86/tools/gen-insn-attr-x86.awk
index 7a68506..eaf11f5 100644
--- a/arch/x86/tools/gen-insn-attr-x86.awk
+++ b/arch/x86/tools/gen-insn-attr-x86.awk
@@ -6,8 +6,6 @@
# Awk implementation sanity check
function check_awk_implement() {
- if (!match("abc", "[[:lower:]]+"))
- return "Your awk doesn't support charactor-class."
if (sprintf("%x", 0) != "0")
return "Your awk has a printf-format problem."
return ""
@@ -44,12 +42,12 @@ BEGIN {
delete gtable
delete atable
- opnd_expr = "^[[:alpha:]/]"
+ opnd_expr = "^[A-Za-z/]"
ext_expr = "^\\("
sep_expr = "^\\|$"
- 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
diff --git a/include/linux/decompress/mm.h b/include/linux/decompress/mm.h
index 12ff8c3..5032b9a 100644
--- a/include/linux/decompress/mm.h
+++ b/include/linux/decompress/mm.h
@@ -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;
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 24c3956..20a2036 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1022,6 +1022,9 @@ 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,
diff --git a/init/initramfs.c b/init/initramfs.c
index 4c00edc..b37d34b 100644
--- a/init/initramfs.c
+++ b/init/initramfs.c
@@ -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",
diff --git a/lib/decompress_bunzip2.c b/lib/decompress_bunzip2.c
index 7607420..a4e971d 100644
--- a/lib/decompress_bunzip2.c
+++ b/lib/decompress_bunzip2.c
@@ -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:
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 2bc2ac6..873c863 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -3573,7 +3573,7 @@ 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)
{
@@ -4102,7 +4102,7 @@ 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),
--
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