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| author |   Michael Neuling <mikey@neuling.org> | 2013-02-13 16:21:32 +0000 |
|---|---|---|
| committer |   Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2013-02-15 16:58:50 +1100 |
| commit | 8b3c34cf0e0ab334a24aad7367cd06a5ba09a898 (patch) | |
| tree | a0dbebeaee859a25117559f7a4aff9c59224d847 /arch/powerpc/kernel/fpu.S | |
| parent | powerpc: Add additional state needed for transactional memory to thread struct (diff) | |
| download | linux-dev-8b3c34cf0e0ab334a24aad7367cd06a5ba09a898.tar.xz linux-dev-8b3c34cf0e0ab334a24aad7367cd06a5ba09a898.zip | |
powerpc: New macros for transactional memory support
This adds new macros for saving and restoring checkpointed architected state
from and to the thread_struct.
It also adds some debugging macros for when your brain explodes trying to debug
your transactional memory enabled kernel.
Signed-off-by: Matt Evans <matt@ozlabs.org>
Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel/fpu.S')
| -rw-r--r-- | arch/powerpc/kernel/fpu.S | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/fpu.S b/arch/powerpc/kernel/fpu.S index e0ada05f2df3..adb155195394 100644 --- a/arch/powerpc/kernel/fpu.S +++ b/arch/powerpc/kernel/fpu.S @@ -35,6 +35,15 @@ END_FTR_SECTION_IFSET(CPU_FTR_VSX); \ 2: REST_32VSRS(n,c,base); \ 3: +#define __REST_32FPVSRS_TRANSACT(n,c,base) \ +BEGIN_FTR_SECTION \ + b 2f; \ +END_FTR_SECTION_IFSET(CPU_FTR_VSX); \ + REST_32FPRS_TRANSACT(n,base); \ + b 3f; \ +2: REST_32VSRS_TRANSACT(n,c,base); \ +3: + #define __SAVE_32FPVSRS(n,c,base) \ BEGIN_FTR_SECTION \ b 2f; \ @@ -45,9 +54,12 @@ END_FTR_SECTION_IFSET(CPU_FTR_VSX); \ 3: #else #define __REST_32FPVSRS(n,b,base) REST_32FPRS(n, base) +#define __REST_32FPVSRS_TRANSACT(n,b,base) REST_32FPRS(n, base) #define __SAVE_32FPVSRS(n,b,base) SAVE_32FPRS(n, base) #endif #define REST_32FPVSRS(n,c,base) __REST_32FPVSRS(n,__REG_##c,__REG_##base) +#define REST_32FPVSRS_TRANSACT(n,c,base) \ + __REST_32FPVSRS_TRANSACT(n,__REG_##c,__REG_##base) #define SAVE_32FPVSRS(n,c,base) __SAVE_32FPVSRS(n,__REG_##c,__REG_##base) /* |