diff options
| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2016-04-29 23:25:42 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2016-05-01 18:32:39 +1000 |
| commit | e99833448c5fa198a120db6d7087dd17149dc273 (patch) | |
| tree | f8bc547c1e6947cee2d20c1069e8694079f11e93 /arch/powerpc/include/asm/book3s/64/mmu.h | |
| parent | 11a6f6abd74ab80865023200ca33515f6db43d63 (diff) | |
powerpc/mm/radix: Add partition table format & callback
Add structs and #defines related to the radix MMU partition table
format. We also add a ppc_md callback for updating a partition table
entry.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include/asm/book3s/64/mmu.h')
| -rw-r--r-- | arch/powerpc/include/asm/book3s/64/mmu.h | 31 |
1 files changed, 29 insertions, 2 deletions
diff --git a/arch/powerpc/include/asm/book3s/64/mmu.h b/arch/powerpc/include/asm/book3s/64/mmu.h index aadb0bbc5c71..b86786f2521c 100644 --- a/arch/powerpc/include/asm/book3s/64/mmu.h +++ b/arch/powerpc/include/asm/book3s/64/mmu.h @@ -21,12 +21,39 @@ struct mmu_psize_def { extern struct mmu_psize_def mmu_psize_defs[MMU_PAGE_COUNT]; #endif /* __ASSEMBLY__ */ -#ifdef CONFIG_PPC_STD_MMU_64 /* 64-bit classic hash table MMU */ #include <asm/book3s/64/mmu-hash.h> -#endif #ifndef __ASSEMBLY__ +/* + * ISA 3.0 partiton and process table entry format + */ +struct prtb_entry { + __be64 prtb0; + __be64 prtb1; +}; +extern struct prtb_entry *process_tb; + +struct patb_entry { + __be64 patb0; + __be64 patb1; +}; +extern struct patb_entry *partition_tb; + +#define PATB_HR (1UL << 63) +#define PATB_GR (1UL << 63) +#define RPDB_MASK 0x0ffffffffffff00fUL +#define RPDB_SHIFT (1UL << 8) +/* + * Limit process table to PAGE_SIZE table. This + * also limit the max pid we can support. + * MAX_USER_CONTEXT * 16 bytes of space. + */ +#define PRTB_SIZE_SHIFT (CONTEXT_BITS + 4) +/* + * Power9 currently only support 64K partition table size. + */ +#define PATB_SIZE_SHIFT 16 typedef unsigned long mm_context_id_t; struct spinlock; |