x86, xsave: Separate fpu and xsave initialization

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As xsave also supports other than fpu features, it should be
initialized independently of the fpu. This patch moves this out of fpu
initialization.

There is also a lot of cross referencing between fpu and xsave
code. This patch reduces this by making xsave_cntxt_init() and
init_thread_xstate() static functions.

The patch moves the cpu_has_xsave check at the beginning of
xsave_init(). All other checks may removed then.

Signed-off-by: Robert Richter <robert.richter@amd.com>
LKML-Reference: <1279731838-1522-2-git-send-email-robert.richter@amd.com>
Acked-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

...

This commit is contained in:

Robert Richter 2010-07-21 19:03:52 +02:00 • committed by H. Peter Anvin

parent 82d4150cec

commit 0e49bf66d2

5 changed files with 26 additions and 15 deletions

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1

arch/x86/include/asm/i387.h

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1

arch/x86/include/asm/xsave.h

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2

arch/x86/kernel/cpu/common.c

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27

arch/x86/kernel/i387.c

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10

arch/x86/kernel/xsave.c

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