powerpc: Add VSX assembler code macros

This adds the macros for the VSX load/store instruction as most
binutils are not going to support this for a while.

Also add VSX register save/restore macros and vsr[0-63] register definitions.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 23 insertions, 0 deletions

diff --git a/arch/powerpc/kernel/fpu.S b/arch/powerpc/kernel/fpu.S
index 8a2b3d62b9b8..15247fe171a8 100644
--- a/arch/powerpc/kernel/fpu.S
+++ b/arch/powerpc/kernel/fpu.S
@@ -24,6 +24,29 @@
 #include <asm/ppc_asm.h>
 #include <asm/asm-offsets.h>
 
+#ifdef CONFIG_VSX
+#define REST_32FPVSRS(n,c,base)                                         \
+BEGIN_FTR_SECTION                                                       \
+        b       2f;                                                     \
+END_FTR_SECTION_IFSET(CPU_FTR_VSX);                                     \
+        REST_32FPRS(n,base);                                            \
+        b       3f;                                                     \
+2:      REST_32VSRS(n,c,base);                                          \
+3:
+
+#define SAVE_32FPVSRS(n,c,base)                                         \
+BEGIN_FTR_SECTION                                                       \
+        b       2f;                                                     \
+END_FTR_SECTION_IFSET(CPU_FTR_VSX);                                     \
+        SAVE_32FPRS(n,base);                                            \
+        b       3f;                                                     \
+2:      SAVE_32VSRS(n,c,base);                                          \
+3:
+#else
+#define REST_32FPVSRS(n,b,base) REST_32FPRS(n, base)
+#define SAVE_32FPVSRS(n,b,base) SAVE_32FPRS(n, base)
+#endif
+
 /*
  * This task wants to use the FPU now.
  * On UP, disable FP for the task which had the FPU previously,