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| author | Peter Wemm <peter@FreeBSD.org> | 2001-07-12 06:32:51 +0000 |
|---|---|---|
| committer | Peter Wemm <peter@FreeBSD.org> | 2001-07-12 06:32:51 +0000 |
| commit | 9d146ac5d13596cd53887a83ed50fe87a4e2a551 (patch) | |
| tree | acb374c639798d8213f972fae7e8609dec013b5f /sys/amd64/amd64/support.S | |
| parent | 5e06480c9fa1de2235c535748efe0a9cc17c5554 (diff) | |
| download | src-9d146ac5d13596cd53887a83ed50fe87a4e2a551.tar.gz src-9d146ac5d13596cd53887a83ed50fe87a4e2a551.zip | |
Activate SSE/SIMD. This is the extra context switching support that
we are required to do if we let user processes use the extra 128 bit
registers etc.
This is the base part of the diff I got from:
http://www.issei.org/issei/FreeBSD/sse.html
I believe this is by: Mr. SUZUKI Issei <issei@issei.org>
SMP support apparently by: Takekazu KATO <kato@chino.it.okayama-u.ac.jp>
Test code by: NAKAMURA Kazushi <kaz@kobe1995.net>, see
http://kobe1995.net/~kaz/FreeBSD/SSE.en.html
I have fixed a couple of style(9) deviations. I have some followup
commits to fix a couple of non-style things.
Notes
Notes:
svn path=/head/; revision=79609
Diffstat (limited to 'sys/amd64/amd64/support.S')
| -rw-r--r-- | sys/amd64/amd64/support.S | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/sys/amd64/amd64/support.S b/sys/amd64/amd64/support.S index 321877432488..55bc29ce7311 100644 --- a/sys/amd64/amd64/support.S +++ b/sys/amd64/amd64/support.S @@ -976,7 +976,7 @@ ENTRY(i586_copyin) ENTRY(fastmove) pushl %ebp movl %esp,%ebp - subl $PCB_SAVEFPU_SIZE+3*4,%esp + subl $PCB_SAVE87_SIZE+3*4,%esp movl 8(%ebp),%ecx cmpl $63,%ecx @@ -1018,7 +1018,7 @@ ENTRY(fastmove) movl PCPU(CURPCB),%esi addl $PCB_SAVEFPU,%esi cld - movl $PCB_SAVEFPU_SIZE>>2,%ecx + movl $PCB_SAVE87_SIZE>>2,%ecx rep movsl movl -12(%ebp),%ecx @@ -1102,7 +1102,7 @@ fastmove_loop: addl $PCB_SAVEFPU,%edi movl %esp,%esi cld - movl $PCB_SAVEFPU_SIZE>>2,%ecx + movl $PCB_SAVE87_SIZE>>2,%ecx rep movsl movl -12(%ebp),%ecx @@ -1147,7 +1147,7 @@ fastmove_fault: addl $PCB_SAVEFPU,%edi movl %esp,%esi cld - movl $PCB_SAVEFPU_SIZE>>2,%ecx + movl $PCB_SAVE87_SIZE>>2,%ecx rep movsl |