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authorH. Peter Anvin <hpa@zytor.com>2007-07-11 12:18:29 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-12 10:55:54 -0700
commitec481536b15eb0520d8f0204b0294480050fe1f8 (patch)
tree3f959a26ca58477734ea1e4d5370b2d3a33a1680 /arch/x86_64
parentf8c09377d754f35a135454181b869ab527cc0757 (diff)
downloadlinux-2.6.34-ux500-ec481536b15eb0520d8f0204b0294480050fe1f8.tar.gz
Unify the CPU features vectors between i386 and x86-64
Unify the handling of the CPU features vectors between i386 and x86-64. This also adopts the collapsing of features which are required at compile-time into constant tests from x86-64 to i386. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/x86_64')
-rw-r--r--arch/x86_64/kernel/setup.c13
-rw-r--r--arch/x86_64/kernel/verify_cpu.S22
2 files changed, 11 insertions, 24 deletions
diff --git a/arch/x86_64/kernel/setup.c b/arch/x86_64/kernel/setup.c
index eb6524f3ac2..dc7630d0646 100644
--- a/arch/x86_64/kernel/setup.c
+++ b/arch/x86_64/kernel/setup.c
@@ -931,7 +931,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
"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", NULL,
+ "fxsr", "sse", "sse2", "ss", "ht", "tm", "ia64", "pbe",
/* AMD-defined */
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
@@ -947,10 +947,11 @@ static int show_cpuinfo(struct seq_file *m, void *v)
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
/* Other (Linux-defined) */
- "cxmmx", NULL, "cyrix_arr", "centaur_mcr", NULL,
- "constant_tsc", NULL, NULL,
- "up", NULL, NULL, NULL, NULL, NULL, NULL, NULL,
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ "cxmmx", "k6_mtrr", "cyrix_arr", "centaur_mcr",
+ NULL, NULL, NULL, NULL,
+ "constant_tsc", "up", NULL, "arch_perfmon",
+ "pebs", "bts", NULL, "sync_rdtsc",
+ "rep_good", NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
/* Intel-defined (#2) */
@@ -961,7 +962,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
/* VIA/Cyrix/Centaur-defined */
NULL, NULL, "rng", "rng_en", NULL, NULL, "ace", "ace_en",
- NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
+ "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,
diff --git a/arch/x86_64/kernel/verify_cpu.S b/arch/x86_64/kernel/verify_cpu.S
index e035f594819..45b6f8a975a 100644
--- a/arch/x86_64/kernel/verify_cpu.S
+++ b/arch/x86_64/kernel/verify_cpu.S
@@ -37,20 +37,6 @@ verify_cpu:
pushl $0 # Kill any dangerous flags
popfl
- /* minimum CPUID flags for x86-64 as defined by AMD */
-#define M(x) (1<<(x))
-#define M2(a,b) M(a)|M(b)
-#define M4(a,b,c,d) M(a)|M(b)|M(c)|M(d)
-
-#define SSE_MASK \
- (M2(X86_FEATURE_XMM,X86_FEATURE_XMM2))
-#define REQUIRED_MASK1 \
- (M4(X86_FEATURE_FPU,X86_FEATURE_PSE,X86_FEATURE_TSC,X86_FEATURE_MSR)|\
- M4(X86_FEATURE_PAE,X86_FEATURE_CX8,X86_FEATURE_PGE,X86_FEATURE_CMOV)|\
- M(X86_FEATURE_FXSR))
-#define REQUIRED_MASK2 \
- (M(X86_FEATURE_LM - 32))
-
pushfl # standard way to check for cpuid
popl %eax
movl %eax,%ebx
@@ -79,8 +65,8 @@ verify_cpu:
verify_cpu_noamd:
movl $0x1,%eax # Does the cpu have what it takes
cpuid
- andl $REQUIRED_MASK1,%edx
- xorl $REQUIRED_MASK1,%edx
+ andl $REQUIRED_MASK0,%edx
+ xorl $REQUIRED_MASK0,%edx
jnz verify_cpu_no_longmode
movl $0x80000000,%eax # See if extended cpuid is implemented
@@ -90,8 +76,8 @@ verify_cpu_noamd:
movl $0x80000001,%eax # Does the cpu have what it takes
cpuid
- andl $REQUIRED_MASK2,%edx
- xorl $REQUIRED_MASK2,%edx
+ andl $REQUIRED_MASK1,%edx
+ xorl $REQUIRED_MASK1,%edx
jnz verify_cpu_no_longmode
verify_cpu_sse_test: