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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/conf/NOTES | |
| 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/conf/NOTES')
| -rw-r--r-- | sys/conf/NOTES | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/sys/conf/NOTES b/sys/conf/NOTES index 6933609879cc..e92da0214dd3 100644 --- a/sys/conf/NOTES +++ b/sys/conf/NOTES @@ -187,6 +187,8 @@ cpu I686_CPU # aka Pentium Pro(tm) # reorder). This option should not be used if you use memory mapped # I/O device(s). # +# CPU_ENABLE_SSE enables SSE/MMX2 instructions support. +# # CPU_FASTER_5X86_FPU enables faster FPU exception handler. # # CPU_I486_ON_386 enables CPU cache on i486 based CPU upgrade products @@ -248,6 +250,7 @@ options CPU_BLUELIGHTNING_3X options CPU_BTB_EN options CPU_DIRECT_MAPPED_CACHE options CPU_DISABLE_5X86_LSSER +options CPU_ENABLE_SSE options CPU_FASTER_5X86_FPU options CPU_I486_ON_386 options CPU_IORT |