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authorSuresh Siddha <suresh.b.siddha@intel.com>2012-09-10 10:32:32 -0700
committerH. Peter Anvin <hpa@linux.intel.com>2012-09-18 15:52:24 -0700
commite00229819f306b1f86134095347e9187dc346bd1 (patch)
tree58184b30fb2dca0f14c0b2cdc60b958529154893 /Documentation
parent212b02125f3725127148475059a70031bd031bdb (diff)
x86, fpu: make eagerfpu= boot param tri-state
Add the "eagerfpu=auto" (that selects the default scheme in enabling eagerfpu) which can override compiled-in boot parameters like "eagerfpu=on/off" (that force enable/disable eagerfpu). Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Link: http://lkml.kernel.org/r/1347300665-6209-5-git-send-email-suresh.b.siddha@intel.com Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/kernel-parameters.txt4
1 files changed, 3 insertions, 1 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index e8f7faaa457..46a6a8288de 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1834,8 +1834,10 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
enabling legacy floating-point and sse state.
eagerfpu= [X86]
- on enable eager fpu restore (default for xsaveopt)
+ on enable eager fpu restore
off disable eager fpu restore
+ auto selects the default scheme, which automatically
+ enables eagerfpu restore for xsaveopt.
nohlt [BUGS=ARM,SH] Tells the kernel that the sleep(SH) or
wfi(ARM) instruction doesn't work correctly and not to