git: kernel: Don't store FPU status into the reserved area of fx
commit 5524f0b4e61d20dc53f24613a3ad8af532824573
Author: Sepherosa Ziehau <sephe@dragonflybsd.org>
Date: Tue Mar 1 22:44:16 2011 +0800
kernel: Don't store FPU status into the reserved area of fxsave
Since each time before the old sv_ex_sw is accessed, fnstsw() is
always called, it no longer makes any sense to save the temporary
in the reserved area for fxsave. And more important: saving the
FPU status into fxsave area overwrites saved xmm register value.
Summary of changes:
sys/cpu/i386/include/npx.h | 4 ++--
sys/cpu/x86_64/include/npx.h | 4 ++--
sys/platform/pc32/i386/machdep.c | 4 ----
sys/platform/pc32/isa/npx.c | 20 +++-----------------
sys/platform/pc64/x86_64/machdep.c | 4 ----
sys/platform/pc64/x86_64/npx.c | 13 -------------
sys/platform/vkernel/i386/cpu_regs.c | 4 ----
sys/platform/vkernel/i386/npx.c | 20 +++-----------------
sys/platform/vkernel64/x86_64/cpu_regs.c | 4 ----
sys/platform/vkernel64/x86_64/npx.c | 13 -------------
10 files changed, 10 insertions(+), 80 deletions(-)
http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/5524f0b4e61d20dc53f24613a3ad8af532824573
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