diff options
Diffstat (limited to 'include/asm-powerpc/mmu-hash64.h')
| -rw-r--r-- | include/asm-powerpc/mmu-hash64.h | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/include/asm-powerpc/mmu-hash64.h b/include/asm-powerpc/mmu-hash64.h index 6739457d8bc0..b8dca30bd0b5 100644 --- a/include/asm-powerpc/mmu-hash64.h +++ b/include/asm-powerpc/mmu-hash64.h @@ -73,8 +73,9 @@ extern char initial_stab[]; #define HPTES_PER_GROUP 8 +#define HPTE_V_SSIZE_SHIFT 62 #define HPTE_V_AVPN_SHIFT 7 -#define HPTE_V_AVPN ASM_CONST(0xffffffffffffff80) +#define HPTE_V_AVPN ASM_CONST(0x3fffffffffffff80) #define HPTE_V_AVPN_VAL(x) (((x) & HPTE_V_AVPN) >> HPTE_V_AVPN_SHIFT) #define HPTE_V_COMPARE(x,y) (!(((x) ^ (y)) & HPTE_V_AVPN)) #define HPTE_V_BOLTED ASM_CONST(0x0000000000000010) @@ -151,6 +152,15 @@ struct mmu_psize_def #define MMU_PAGE_16G 5 /* 16G */ #define MMU_PAGE_COUNT 6 +/* + * Segment sizes. + * These are the values used by hardware in the B field of + * SLB entries and the first dword of MMU hashtable entries. + * The B field is 2 bits; the values 2 and 3 are unused and reserved. + */ +#define MMU_SEGSIZE_256M 0 +#define MMU_SEGSIZE_1T 1 + #ifndef __ASSEMBLY__ /* @@ -350,10 +360,13 @@ typedef unsigned long mm_context_id_t; typedef struct { mm_context_id_t id; - u16 user_psize; /* page size index */ - u16 sllp; /* SLB entry page size encoding */ -#ifdef CONFIG_HUGETLB_PAGE - u16 low_htlb_areas, high_htlb_areas; + u16 user_psize; /* page size index */ + +#ifdef CONFIG_PPC_MM_SLICES + u64 low_slices_psize; /* SLB page size encodings */ + u64 high_slices_psize; /* 4 bits per slice for now */ +#else + u16 sllp; /* SLB page size encoding */ #endif unsigned long vdso_base; } mm_context_t; |