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| author |   Ingo Molnar <mingo@kernel.org> | 2015-05-05 15:56:33 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-05-19 15:48:12 +0200 |
| commit | b1b64dc3558b7bde2917f9fc4f573f6a4787a95c (patch) | |
| tree | a1c74ea7462d27adb8cb744d1a74162b9342d587 /arch/x86/include/asm/fpu/types.h | |
| parent | x86/fpu: Add CONFIG_X86_DEBUG_FPU=y FPU debugging code (diff) | |
| download | linux-dev-b1b64dc3558b7bde2917f9fc4f573f6a4787a95c.tar.xz linux-dev-b1b64dc3558b7bde2917f9fc4f573f6a4787a95c.zip | |
x86/fpu: Reorganize fpu/internal.h
fpu/internal.h has grown organically, with not much high level structure,
which hurts its readability.
Organize the various definitions into 5 sections:
- high level FPU state functions
- FPU/CPU feature flag helpers
- fpstate handling functions
- FPU context switching helpers
- misc helper functions
Other related changes:
- Move MXCSR_DEFAULT to fpu/types.h.
- drop the unused X87_FSW_ES define
No change in functionality.
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/include/asm/fpu/types.h')
| -rw-r--r-- | arch/x86/include/asm/fpu/types.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/include/asm/fpu/types.h b/arch/x86/include/asm/fpu/types.h index 02241c2a10e9..0637826292de 100644 --- a/arch/x86/include/asm/fpu/types.h +++ b/arch/x86/include/asm/fpu/types.h @@ -65,6 +65,9 @@ struct fxregs_state { } __attribute__((aligned(16))); +/* Default value for fxregs_state.mxcsr: */ +#define MXCSR_DEFAULT 0x1f80 + /* * Software based FPU emulation state. This is arbitrary really, * it matches the x87 format to make it easier to understand: |