diff options
| author | H. Peter Anvin <hpa@zytor.com> | 2007-07-11 12:18:29 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-12 10:55:54 -0700 |
| commit | ec481536b15eb0520d8f0204b0294480050fe1f8 (patch) | |
| tree | 3f959a26ca58477734ea1e4d5370b2d3a33a1680 /arch/i386/kernel/verify_cpu.S | |
| parent | f8c09377d754f35a135454181b869ab527cc0757 (diff) | |
| download | talos-op-linux-ec481536b15eb0520d8f0204b0294480050fe1f8.tar.gz talos-op-linux-ec481536b15eb0520d8f0204b0294480050fe1f8.zip | |
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/i386/kernel/verify_cpu.S')
| -rw-r--r-- | arch/i386/kernel/verify_cpu.S | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/arch/i386/kernel/verify_cpu.S b/arch/i386/kernel/verify_cpu.S index f1d1eacf4ab0..3efc5c137d14 100644 --- a/arch/i386/kernel/verify_cpu.S +++ b/arch/i386/kernel/verify_cpu.S @@ -20,7 +20,7 @@ verify_cpu: testl $(1<<18),%eax jz bad #endif -#if REQUIRED_MASK1 != 0 +#if REQUIRED_MASK0 != 0 pushfl # standard way to check for cpuid popl %eax movl %eax,%ebx @@ -39,14 +39,14 @@ verify_cpu: pushfl popl %eax cmpl %eax,%ebx - jz bad # REQUIRED_MASK1 != 0 requires CPUID + jz bad # REQUIRED_MASK0 != 0 requires CPUID movl $0x0,%eax # See if cpuid 1 is implemented cpuid cmpl $0x1,%eax jb bad # no cpuid 1 -#if REQUIRED_MASK1 & NEED_CMPXCHG64 +#if REQUIRED_MASK0 & NEED_CMPXCHG64 /* Some VIA C3s need magic MSRs to enable CX64. Do this here */ cmpl $0x746e6543,%ebx # Cent jne 1f @@ -79,10 +79,10 @@ verify_cpu: #error add proper model checking here #endif - andl $REQUIRED_MASK1,%edx - xorl $REQUIRED_MASK1,%edx + andl $REQUIRED_MASK0,%edx + xorl $REQUIRED_MASK0,%edx jnz bad -#endif /* REQUIRED_MASK1 */ +#endif /* REQUIRED_MASK0 */ popfl xor %eax,%eax |
