powerpc/mm: Introduce MMU features

[linux-2.6-omap-h63xx.git] / arch / powerpc / include / asm / feature-fixups.h

diff --git a/arch/powerpc/include/asm/feature-fixups.h b/arch/powerpc/include/asm/feature-fixups.h
index a1029967620be29003550a84fd12d3e78a13c4b7..e4094a5cb05b6f7de223dd6c15eaf888289d5240 100644 (file)
--- a/arch/powerpc/include/asm/feature-fixups.h
+++ b/arch/powerpc/include/asm/feature-fixups.h
@@ -81,6 +81,36 @@ label##5:                                            \
 #define ALT_FTR_SECTION_END_IFCLR(msk) \
        ALT_FTR_SECTION_END_NESTED_IFCLR(msk, 97)
 
+/* MMU feature dependent sections */
+#define BEGIN_MMU_FTR_SECTION_NESTED(label)    START_FTR_SECTION(label)
+#define BEGIN_MMU_FTR_SECTION                  START_FTR_SECTION(97)
+
+#define END_MMU_FTR_SECTION_NESTED(msk, val, label)            \
+       FTR_SECTION_ELSE_NESTED(label)                          \
+       MAKE_FTR_SECTION_ENTRY(msk, val, label, __mmu_ftr_fixup)
+
+#define END_MMU_FTR_SECTION(msk, val)          \
+       END_MMU_FTR_SECTION_NESTED(msk, val, 97)
+
+#define END_MMU_FTR_SECTION_IFSET(msk) END_MMU_FTR_SECTION((msk), (msk))
+#define END_MMU_FTR_SECTION_IFCLR(msk) END_MMU_FTR_SECTION((msk), 0)
+
+/* MMU feature sections with alternatives, use BEGIN_FTR_SECTION to start */
+#define MMU_FTR_SECTION_ELSE_NESTED(label)     FTR_SECTION_ELSE_NESTED(label)
+#define MMU_FTR_SECTION_ELSE   MMU_FTR_SECTION_ELSE_NESTED(97)
+#define ALT_MMU_FTR_SECTION_END_NESTED(msk, val, label)        \
+       MAKE_FTR_SECTION_ENTRY(msk, val, label, __mmu_ftr_fixup)
+#define ALT_MMU_FTR_SECTION_END_NESTED_IFSET(msk, label)       \
+       ALT_MMU_FTR_SECTION_END_NESTED(msk, msk, label)
+#define ALT_MMU_FTR_SECTION_END_NESTED_IFCLR(msk, label)       \
+       ALT_MMU_FTR_SECTION_END_NESTED(msk, 0, label)
+#define ALT_MMU_FTR_SECTION_END(msk, val)      \
+       ALT_MMU_FTR_SECTION_END_NESTED(msk, val, 97)
+#define ALT_MMU_FTR_SECTION_END_IFSET(msk)     \
+       ALT_MMU_FTR_SECTION_END_NESTED_IFSET(msk, 97)
+#define ALT_MMU_FTR_SECTION_END_IFCLR(msk)     \
+       ALT_MMU_FTR_SECTION_END_NESTED_IFCLR(msk, 97)
+
 /* Firmware feature dependent sections */
 #define BEGIN_FW_FTR_SECTION_NESTED(label)     START_FTR_SECTION(label)
 #define BEGIN_FW_FTR_SECTION                   START_FTR_SECTION(97)