From 7c03d653cd257793dc40520c94e229b5fd0578e7 Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Thu, 18 Dec 2008 19:13:32 +0000 Subject: powerpc/mm: Introduce MMU features We're soon running out of CPU features and I need to add some new ones for various MMU related bits, so this patch separates the MMU features from the CPU features. I moved over the 32-bit MMU related ones, added base features for MMU type families, but didn't move over any 64-bit only feature yet. Signed-off-by: Benjamin Herrenschmidt Acked-by: Kumar Gala Signed-off-by: Paul Mackerras --- arch/powerpc/include/asm/feature-fixups.h | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) (limited to '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 a1029967620b..e4094a5cb05b 100644 --- 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) -- cgit v1.2.1