diff options
| author | delphij <delphij@FreeBSD.org> | 2005-07-02 20:06:44 +0000 |
|---|---|---|
| committer | delphij <delphij@FreeBSD.org> | 2005-07-02 20:06:44 +0000 |
| commit | 019106f6e576eb8e05e7b5b562d7115dd05ba567 (patch) | |
| tree | f712cf3be64a135dbc1f4e04704add0988835f8e /sys/pc98/conf/NOTES | |
| parent | 696ddfbe750f1c4366a789f2a656f2ff955fd9d8 (diff) | |
| download | FreeBSD-src-019106f6e576eb8e05e7b5b562d7115dd05ba567.zip FreeBSD-src-019106f6e576eb8e05e7b5b562d7115dd05ba567.tar.gz | |
Remove the CPU_ENABLE_SSE option from the i386 and pc98 architectures,
as they are already default for I686_CPU for almost 3 years, and
CPU_DISABLE_SSE always disables it. On the other hand, CPU_ENABLE_SSE
does not work for I486_CPU and I586_CPU.
This commit has:
- Removed the option from conf/options.*
- Removed the option and comments from MD NOTES files
- Simplified the CPU_ENABLE_SSE ifdef's so they don't
deal with CPU_ENABLE_SSE from kernel configuration. (*)
For most users, this commit should be largely no-op. If you used to
place CPU_ENABLE_SSE into your kernel configuration for some reason,
it is time to remove it.
(*) The ifdef's of CPU_ENABLE_SSE are not removed at this point, since
we need to change it to !defined(CPU_DISABLE_SSE) && defined(I686_CPU),
not just !defined(CPU_DISABLE_SSE), if we really want to do so.
Discussed on: -arch
Approved by: re (scottl)
Diffstat (limited to 'sys/pc98/conf/NOTES')
| -rw-r--r-- | sys/pc98/conf/NOTES | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/sys/pc98/conf/NOTES b/sys/pc98/conf/NOTES index 86f1426..dcac1e7 100644 --- a/sys/pc98/conf/NOTES +++ b/sys/pc98/conf/NOTES @@ -88,9 +88,6 @@ cpu I686_CPU # aka Pentium Pro(tm) # # CPU_DISABLE_SSE explicitly prevents I686_CPU from turning on SSE. # -# CPU_ENABLE_SSE enables SSE/MMX2 instructions support. This is default -# on I686_CPU and above. -# # CPU_FASTER_5X86_FPU enables faster FPU exception handler. # # CPU_I486_ON_386 enables CPU cache on i486 based CPU upgrade products @@ -156,7 +153,6 @@ options CPU_DIRECT_MAPPED_CACHE options CPU_DISABLE_5X86_LSSER options CPU_DISABLE_CMPXCHG #options CPU_DISABLE_SSE -options CPU_ENABLE_SSE options CPU_FASTER_5X86_FPU options CPU_I486_ON_386 options CPU_IORT |
