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authorMichael Neuling <mikey@neuling.org>2013-02-13 16:21:32 +0000
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2013-02-15 16:58:50 +1100
commit8b3c34cf0e0ab334a24aad7367cd06a5ba09a898 (patch)
treea0dbebeaee859a25117559f7a4aff9c59224d847 /arch/powerpc/kernel/fpu.S
parentf4c3aff2230bfe696a0683073b77446248d7895c (diff)
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.S12
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)
/*