aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2006-10-20 11:47:16 +1000
committerPaul Mackerras <paulus@samba.org>2006-10-25 11:54:02 +1000
commit7aeb732428fc8e2ecae6d432873770c12f04a979 (patch)
tree00a0fed4a824bc2a5857e9f0b4016cef0bb22e9e
parent42c4aaadb737e0e672b3fb86b2c41ff59f0fb8bc (diff)
[POWERPC] Support nested cpu feature sections
This patch adds some macros that can be used with an explicit label in order to nest cpu features. This should be used very careful but is necessary for the upcoming cell TB fixup. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
-rw-r--r--include/asm-powerpc/cputable.h14
1 files changed, 9 insertions, 5 deletions
diff --git a/include/asm-powerpc/cputable.h b/include/asm-powerpc/cputable.h
index 4d22218739e..65faf322ace 100644
--- a/include/asm-powerpc/cputable.h
+++ b/include/asm-powerpc/cputable.h
@@ -434,30 +434,34 @@ static inline int cpu_has_feature(unsigned long feature)
#ifdef __ASSEMBLY__
-#define BEGIN_FTR_SECTION 98:
+#define BEGIN_FTR_SECTION_NESTED(label) label:
+#define BEGIN_FTR_SECTION BEGIN_FTR_SECTION_NESTED(98)
#ifndef __powerpc64__
-#define END_FTR_SECTION(msk, val) \
+#define END_FTR_SECTION_NESTED(msk, val, label) \
99: \
.section __ftr_fixup,"a"; \
.align 2; \
.long msk; \
.long val; \
- .long 98b; \
+ .long label##b; \
.long 99b; \
.previous
#else /* __powerpc64__ */
-#define END_FTR_SECTION(msk, val) \
+#define END_FTR_SECTION_NESTED(msk, val, label) \
99: \
.section __ftr_fixup,"a"; \
.align 3; \
.llong msk; \
.llong val; \
- .llong 98b; \
+ .llong label##b; \
.llong 99b; \
.previous
#endif /* __powerpc64__ */
+#define END_FTR_SECTION(msk, val) \
+ END_FTR_SECTION_NESTED(msk, val, 98)
+
#define END_FTR_SECTION_IFSET(msk) END_FTR_SECTION((msk), (msk))
#define END_FTR_SECTION_IFCLR(msk) END_FTR_SECTION((msk), 0)
#endif /* __ASSEMBLY__ */