diff options
| -rw-r--r-- | arch/powerpc/include/asm/book3s/64/hash-64k.h | 10 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/book3s/64/radix-4k.h | 5 | ||||
| -rw-r--r-- | arch/powerpc/include/asm/book3s/64/radix-64k.h | 6 | ||||
| -rw-r--r-- | arch/powerpc/mm/pgtable-radix.c | 8 |
4 files changed, 17 insertions, 12 deletions
diff --git a/arch/powerpc/include/asm/book3s/64/hash-64k.h b/arch/powerpc/include/asm/book3s/64/hash-64k.h index eb393135d054..cc82745355b3 100644 --- a/arch/powerpc/include/asm/book3s/64/hash-64k.h +++ b/arch/powerpc/include/asm/book3s/64/hash-64k.h @@ -38,15 +38,13 @@ /* PTE flags to conserve for HPTE identification */ #define _PAGE_HPTEFLAGS (H_PAGE_BUSY | H_PAGE_HASHPTE | H_PAGE_COMBO) /* - * we support 16 fragments per PTE page of 64K size. - */ -#define H_PTE_FRAG_NR 16 -/* * We use a 2K PTE page fragment and another 2K for storing * real_pte_t hash index + * 8 bytes per each pte entry and another 8 bytes for storing + * slot details. */ -#define H_PTE_FRAG_SIZE_SHIFT 12 -#define PTE_FRAG_SIZE (1UL << PTE_FRAG_SIZE_SHIFT) +#define H_PTE_FRAG_SIZE_SHIFT (H_PTE_INDEX_SIZE + 3 + 1) +#define H_PTE_FRAG_NR (PAGE_SIZE >> H_PTE_FRAG_SIZE_SHIFT) #ifndef __ASSEMBLY__ #include <asm/errno.h> diff --git a/arch/powerpc/include/asm/book3s/64/radix-4k.h b/arch/powerpc/include/asm/book3s/64/radix-4k.h index a61aa9cd63ec..ca366ec86310 100644 --- a/arch/powerpc/include/asm/book3s/64/radix-4k.h +++ b/arch/powerpc/include/asm/book3s/64/radix-4k.h @@ -9,5 +9,10 @@ #define RADIX_PMD_INDEX_SIZE 9 /* 1G huge page */ #define RADIX_PUD_INDEX_SIZE 9 #define RADIX_PGD_INDEX_SIZE 13 +/* + * One fragment per per page + */ +#define RADIX_PTE_FRAG_SIZE_SHIFT (RADIX_PTE_INDEX_SIZE + 3) +#define RADIX_PTE_FRAG_NR (PAGE_SIZE >> RADIX_PTE_FRAG_SIZE_SHIFT) #endif /* _ASM_POWERPC_PGTABLE_RADIX_4K_H */ diff --git a/arch/powerpc/include/asm/book3s/64/radix-64k.h b/arch/powerpc/include/asm/book3s/64/radix-64k.h index c7e71ba29555..830082496876 100644 --- a/arch/powerpc/include/asm/book3s/64/radix-64k.h +++ b/arch/powerpc/include/asm/book3s/64/radix-64k.h @@ -10,4 +10,10 @@ #define RADIX_PUD_INDEX_SIZE 9 #define RADIX_PGD_INDEX_SIZE 13 +/* + * We use a 256 byte PTE page fragment in radix + * 8 bytes per each PTE entry. + */ +#define RADIX_PTE_FRAG_SIZE_SHIFT (RADIX_PTE_INDEX_SIZE + 3) +#define RADIX_PTE_FRAG_NR (PAGE_SIZE >> RADIX_PTE_FRAG_SIZE_SHIFT) #endif /* _ASM_POWERPC_PGTABLE_RADIX_64K_H */ diff --git a/arch/powerpc/mm/pgtable-radix.c b/arch/powerpc/mm/pgtable-radix.c index 7095384344b4..f1891e215e39 100644 --- a/arch/powerpc/mm/pgtable-radix.c +++ b/arch/powerpc/mm/pgtable-radix.c @@ -638,12 +638,8 @@ void __init radix__early_init_mmu(void) #ifdef CONFIG_PCI pci_io_base = ISA_IO_BASE; #endif - - /* - * For now radix also use the same frag size - */ - __pte_frag_nr = H_PTE_FRAG_NR; - __pte_frag_size_shift = H_PTE_FRAG_SIZE_SHIFT; + __pte_frag_nr = RADIX_PTE_FRAG_NR; + __pte_frag_size_shift = RADIX_PTE_FRAG_SIZE_SHIFT; if (!firmware_has_feature(FW_FEATURE_LPAR)) { radix_init_native(); |