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authorH. Peter Anvin <hpa@zytor.com>2007-07-11 12:18:58 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-12 10:55:56 -0700
commitc39736823232bc3ca113c8228fa852c09fba300e (patch)
tree94fe2f8b27879cee904b09d1effb91ccc3ce6e0a /arch/i386/kernel
parent91a6c462b02d8dc02dbe95e5a407d78078a38d01 (diff)
Remove old i386 setup code
This removes the old i386 setup code. This is done as a separate patch to avoid breaking git bisect as some of the i386 code was also used by the old x86-64 code. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/i386/kernel')
-rw-r--r--arch/i386/kernel/verify_cpu.S94
1 files changed, 0 insertions, 94 deletions
diff --git a/arch/i386/kernel/verify_cpu.S b/arch/i386/kernel/verify_cpu.S
deleted file mode 100644
index fff4aa61d7c..00000000000
--- a/arch/i386/kernel/verify_cpu.S
+++ /dev/null
@@ -1,94 +0,0 @@
-/* Check if CPU has some minimum CPUID bits
- This runs in 16bit mode so that the caller can still use the BIOS
- to output errors on the screen */
-#include <asm/cpufeature.h>
-#include <asm/msr.h>
-
-verify_cpu:
- pushfl # Save caller passed flags
- pushl $0 # Kill any dangerous flags
- popfl
-
-#if CONFIG_X86_MINIMUM_CPU_FAMILY >= 4
- pushfl
- pop %eax
- orl $(1<<18),%eax # try setting AC
- push %eax
- popfl
- pushfl
- popl %eax
- testl $(1<<18),%eax
- jz bad
-#endif
-#if REQUIRED_MASK0 != 0
- pushfl # standard way to check for cpuid
- popl %eax
- movl %eax,%ebx
- xorl $0x200000,%eax
- pushl %eax
- popfl
- pushfl
- popl %eax
- cmpl %eax,%ebx
- pushfl # standard way to check for cpuid
- popl %eax
- movl %eax,%ebx
- xorl $0x200000,%eax
- pushl %eax
- popfl
- pushfl
- popl %eax
- cmpl %eax,%ebx
- 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_MASK0 & NEED_CMPXCHG64
- /* Some VIA C3s need magic MSRs to enable CX64. Do this here */
- cmpl $0x746e6543,%ebx # Cent
- jne 1f
- cmpl $0x48727561,%edx # aurH
- jne 1f
- cmpl $0x736c7561,%ecx # auls
- jne 1f
- movl $1,%eax # check model
- cpuid
- movl %eax,%ebx
- shr $8,%ebx
- andl $0xf,%ebx
- cmp $6,%ebx # check family == 6
- jne 1f
- shr $4,%eax
- andl $0xf,%eax
- cmpl $6,%eax # check model >= 6
- jb 1f
- # assume models >= 6 all support this MSR
- movl $MSR_VIA_FCR,%ecx
- rdmsr
- orl $((1<<1)|(1<<7)),%eax # enable CMPXCHG64 and PGE
- wrmsr
-1:
-#endif
- movl $0x1,%eax # Does the cpu have what it takes
- cpuid
-
-#if CONFIG_X86_MINIMUM_CPU_FAMILY > 4
-#error add proper model checking here
-#endif
-
- andl $REQUIRED_MASK0,%edx
- xorl $REQUIRED_MASK0,%edx
- jnz bad
-#endif /* REQUIRED_MASK0 */
-
- popfl
- xor %eax,%eax
- ret
-
-bad:
- popfl
- movl $1,%eax
- ret