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| author | Peter Stuge <peter@stuge.se> | 2009-10-17 15:01:00 +0000 |
|---|---|---|
| committer | Peter Stuge <peter@stuge.se> | 2009-10-17 15:01:00 +0000 |
| commit | d08be7eecdfd3ee5adff11341a4b7510e7d004dd (patch) | |
| tree | b7a71af2b846b8ef85cd5a2d0edd407eb9aeb0d1 /src/cpu/x86/sse_disable.inc | |
| parent | 0bc615482e34af308712be970479aeb613f5fa41 (diff) | |
| download | coreboot-d08be7eecdfd3ee5adff11341a4b7510e7d004dd.tar.xz | |
Move files from src/cpu/x86/{fpu,mmx,sse}/ to x86/
Signed-off-by: Peter Stuge <peter@stuge.se>
Acked-by: Myles Watson <mylesgw@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4803 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/cpu/x86/sse_disable.inc')
| -rw-r--r-- | src/cpu/x86/sse_disable.inc | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/src/cpu/x86/sse_disable.inc b/src/cpu/x86/sse_disable.inc new file mode 100644 index 0000000000..a18ea18643 --- /dev/null +++ b/src/cpu/x86/sse_disable.inc @@ -0,0 +1,18 @@ + /* + * Put the processor back into a reset state + * with respect to the xmm registers. + */ + + xorps %xmm0, %xmm0 + xorps %xmm1, %xmm1 + xorps %xmm2, %xmm2 + xorps %xmm3, %xmm3 + xorps %xmm4, %xmm4 + xorps %xmm5, %xmm5 + xorps %xmm6, %xmm6 + xorps %xmm7, %xmm7 + + /* Disable sse instructions */ + movl %cr4, %eax + andl $~(3<<9), %eax + movl %eax, %cr4 |