diff options
| author | Christophe Leroy <christophe.leroy@csgroup.eu> | 2020-05-19 05:49:11 +0000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-05-26 22:22:21 +1000 |
| commit | 555904d07eef3a2e5fc458419edf6174362c4ddd (patch) | |
| tree | 8c878a95c06048f40f05a9fd6529ed53b1a78c5b /arch/powerpc/include/asm/nohash/32/mmu-8xx.h | |
| parent | d4870b89acd7c362ded08f9295e8d143cf7e0024 (diff) | |
powerpc/8xx: MM_SLICE is not needed anymore
As the 8xx now manages 512k pages in standard page tables,
it doesn't need CONFIG_PPC_MM_SLICES anymore.
Don't select it anymore and remove all related code.
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/98e8ccd424476ea73cced2b89ba38eb2ed8144fb.1589866984.git.christophe.leroy@csgroup.eu
Diffstat (limited to 'arch/powerpc/include/asm/nohash/32/mmu-8xx.h')
| -rw-r--r-- | arch/powerpc/include/asm/nohash/32/mmu-8xx.h | 64 |
1 files changed, 0 insertions, 64 deletions
diff --git a/arch/powerpc/include/asm/nohash/32/mmu-8xx.h b/arch/powerpc/include/asm/nohash/32/mmu-8xx.h index 26b7cee34dfe..a092e6434bda 100644 --- a/arch/powerpc/include/asm/nohash/32/mmu-8xx.h +++ b/arch/powerpc/include/asm/nohash/32/mmu-8xx.h @@ -176,12 +176,6 @@ */ #define SPRN_M_TW 799 -#ifdef CONFIG_PPC_MM_SLICES -#include <asm/nohash/32/slice.h> -#define SLICE_ARRAY_SIZE (1 << (32 - SLICE_LOW_SHIFT - 1)) -#define LOW_SLICE_ARRAY_SZ SLICE_ARRAY_SIZE -#endif - #if defined(CONFIG_PPC_4K_PAGES) #define mmu_virtual_psize MMU_PAGE_4K #elif defined(CONFIG_PPC_16K_PAGES) @@ -199,71 +193,13 @@ #include <linux/mmdebug.h> -struct slice_mask { - u64 low_slices; - DECLARE_BITMAP(high_slices, 0); -}; - typedef struct { unsigned int id; unsigned int active; unsigned long vdso_base; -#ifdef CONFIG_PPC_MM_SLICES - u16 user_psize; /* page size index */ - unsigned char low_slices_psize[SLICE_ARRAY_SIZE]; - unsigned char high_slices_psize[0]; - unsigned long slb_addr_limit; - struct slice_mask mask_base_psize; /* 4k or 16k */ - struct slice_mask mask_512k; - struct slice_mask mask_8m; -#endif void *pte_frag; } mm_context_t; -#ifdef CONFIG_PPC_MM_SLICES -static inline u16 mm_ctx_user_psize(mm_context_t *ctx) -{ - return ctx->user_psize; -} - -static inline void mm_ctx_set_user_psize(mm_context_t *ctx, u16 user_psize) -{ - ctx->user_psize = user_psize; -} - -static inline unsigned char *mm_ctx_low_slices(mm_context_t *ctx) -{ - return ctx->low_slices_psize; -} - -static inline unsigned char *mm_ctx_high_slices(mm_context_t *ctx) -{ - return ctx->high_slices_psize; -} - -static inline unsigned long mm_ctx_slb_addr_limit(mm_context_t *ctx) -{ - return ctx->slb_addr_limit; -} - -static inline void mm_ctx_set_slb_addr_limit(mm_context_t *ctx, unsigned long limit) -{ - ctx->slb_addr_limit = limit; -} - -static inline struct slice_mask *slice_mask_for_size(mm_context_t *ctx, int psize) -{ - if (psize == MMU_PAGE_512K) - return &ctx->mask_512k; - if (psize == MMU_PAGE_8M) - return &ctx->mask_8m; - - BUG_ON(psize != mmu_virtual_psize); - - return &ctx->mask_base_psize; -} -#endif /* CONFIG_PPC_MM_SLICE */ - #define PHYS_IMMR_BASE (mfspr(SPRN_IMMR) & 0xfff80000) #define VIRT_IMMR_BASE (__fix_to_virt(FIX_IMMR_BASE)) |