* that values will be negative, that is, the fixup table has to be
* located after the code it fixes up.
*/
-#ifdef CONFIG_PPC64
-
-#ifdef __powerpc64__
-
-/* 64 bits kernel, 64 bits code */
-#define MAKE_FTR_SECTION_ENTRY(msk, val, label, sect) \
-99: \
- .section sect,"a"; \
- .align 3; \
-98: \
- .llong msk; \
- .llong val; \
- .llong label##b-98b; \
- .llong 99b-98b; \
- .previous
-
-#else /* __powerpc64__ */
-
+#if defined(CONFIG_PPC64) && !defined(__powerpc64__)
/* 64 bits kernel, 32 bits code (ie. vdso32) */
-#define MAKE_FTR_SECTION_ENTRY(msk, val, label, sect) \
-99: \
- .section sect,"a"; \
- .align 3; \
-98: \
- .llong msk; \
- .llong val; \
- .long 0xffffffff; \
- .long label##b-98b; \
- .long 0xffffffff; \
- .long 99b-98b; \
- .previous
+#define FTR_ENTRY_LONG .llong
+#define FTR_ENTRY_OFFSET .long 0xffffffff; .long
+#else
+/* 64 bit kernel 64 bit code, or 32 bit kernel 32 bit code */
+#define FTR_ENTRY_LONG PPC_LONG
+#define FTR_ENTRY_OFFSET PPC_LONG
+#endif
+
+#define START_FTR_SECTION(label) label##1:
+
+#define FTR_SECTION_ELSE_NESTED(label) \
+label##2: \
+ .pushsection __ftr_alt_##label,"a"; \
+ .align 2; \
+label##3:
-#endif /* !__powerpc64__ */
-
-#else /* CONFIG_PPC64 */
-
-/* 32 bits kernel, 32 bits code */
#define MAKE_FTR_SECTION_ENTRY(msk, val, label, sect) \
-99: \
- .section sect,"a"; \
- .align 2; \
-98: \
- .long msk; \
- .long val; \
- .long label##b-98b; \
- .long 99b-98b; \
- .previous
-
-#endif /* !CONFIG_PPC64 */
+label##4: \
+ .popsection; \
+ .pushsection sect,"a"; \
+ .align 3; \
+label##5: \
+ FTR_ENTRY_LONG msk; \
+ FTR_ENTRY_LONG val; \
+ FTR_ENTRY_OFFSET label##1b-label##5b; \
+ FTR_ENTRY_OFFSET label##2b-label##5b; \
+ FTR_ENTRY_OFFSET label##3b-label##5b; \
+ FTR_ENTRY_OFFSET label##4b-label##5b; \
+ .popsection;
/* CPU feature dependent sections */
-#define BEGIN_FTR_SECTION_NESTED(label) label:
-#define BEGIN_FTR_SECTION BEGIN_FTR_SECTION_NESTED(97)
+#define BEGIN_FTR_SECTION_NESTED(label) START_FTR_SECTION(label)
+#define BEGIN_FTR_SECTION START_FTR_SECTION(97)
-#define END_FTR_SECTION_NESTED(msk, val, label) \
+#define END_FTR_SECTION_NESTED(msk, val, label) \
+ FTR_SECTION_ELSE_NESTED(label) \
MAKE_FTR_SECTION_ENTRY(msk, val, label, __ftr_fixup)
#define END_FTR_SECTION(msk, val) \
#define END_FTR_SECTION_IFSET(msk) END_FTR_SECTION((msk), (msk))
#define END_FTR_SECTION_IFCLR(msk) END_FTR_SECTION((msk), 0)
+/* CPU feature sections with alternatives, use BEGIN_FTR_SECTION to start */
+#define FTR_SECTION_ELSE FTR_SECTION_ELSE_NESTED(97)
+#define ALT_FTR_SECTION_END_NESTED(msk, val, label) \
+ MAKE_FTR_SECTION_ENTRY(msk, val, label, __ftr_fixup)
+#define ALT_FTR_SECTION_END_NESTED_IFSET(msk, label) \
+ ALT_FTR_SECTION_END_NESTED(msk, msk, label)
+#define ALT_FTR_SECTION_END_NESTED_IFCLR(msk, label) \
+ ALT_FTR_SECTION_END_NESTED(msk, 0, label)
+#define ALT_FTR_SECTION_END(msk, val) \
+ ALT_FTR_SECTION_END_NESTED(msk, val, 97)
+#define ALT_FTR_SECTION_END_IFSET(msk) \
+ ALT_FTR_SECTION_END_NESTED_IFSET(msk, 97)
+#define ALT_FTR_SECTION_END_IFCLR(msk) \
+ ALT_FTR_SECTION_END_NESTED_IFCLR(msk, 97)
/* Firmware feature dependent sections */
-#define BEGIN_FW_FTR_SECTION_NESTED(label) label:
-#define BEGIN_FW_FTR_SECTION BEGIN_FW_FTR_SECTION_NESTED(97)
+#define BEGIN_FW_FTR_SECTION_NESTED(label) START_FTR_SECTION(label)
+#define BEGIN_FW_FTR_SECTION START_FTR_SECTION(97)
-#define END_FW_FTR_SECTION_NESTED(msk, val, label) \
+#define END_FW_FTR_SECTION_NESTED(msk, val, label) \
+ FTR_SECTION_ELSE_NESTED(label) \
MAKE_FTR_SECTION_ENTRY(msk, val, label, __fw_ftr_fixup)
#define END_FW_FTR_SECTION(msk, val) \
#define END_FW_FTR_SECTION_IFSET(msk) END_FW_FTR_SECTION((msk), (msk))
#define END_FW_FTR_SECTION_IFCLR(msk) END_FW_FTR_SECTION((msk), 0)
+/* Firmware feature sections with alternatives */
+#define FW_FTR_SECTION_ELSE_NESTED(label) FTR_SECTION_ELSE_NESTED(label)
+#define FW_FTR_SECTION_ELSE FTR_SECTION_ELSE_NESTED(97)
+#define ALT_FW_FTR_SECTION_END_NESTED(msk, val, label) \
+ MAKE_FTR_SECTION_ENTRY(msk, val, label, __fw_ftr_fixup)
+#define ALT_FW_FTR_SECTION_END_NESTED_IFSET(msk, label) \
+ ALT_FW_FTR_SECTION_END_NESTED(msk, msk, label)
+#define ALT_FW_FTR_SECTION_END_NESTED_IFCLR(msk, label) \
+ ALT_FW_FTR_SECTION_END_NESTED(msk, 0, label)
+#define ALT_FW_FTR_SECTION_END(msk, val) \
+ ALT_FW_FTR_SECTION_END_NESTED(msk, val, 97)
+#define ALT_FW_FTR_SECTION_END_IFSET(msk) \
+ ALT_FW_FTR_SECTION_END_NESTED_IFSET(msk, 97)
+#define ALT_FW_FTR_SECTION_END_IFCLR(msk) \
+ ALT_FW_FTR_SECTION_END_NESTED_IFCLR(msk, 97)
+
#endif /* __ASSEMBLY__ */
+/* LWSYNC feature sections */
+#define START_LWSYNC_SECTION(label) label##1:
+#define MAKE_LWSYNC_SECTION_ENTRY(label, sect) \
+label##2: \
+ .pushsection sect,"a"; \
+ .align 2; \
+label##3: \
+ .long label##1b-label##3b; \
+ .popsection;
+
#endif /* __ASM_POWERPC_FEATURE_FIXUPS_H */
projects / linux-2.6-omap-h63xx.git / blobdiff