diff options
Diffstat (limited to 'arch/powerpc/include/asm/book3s/64/radix-64k.h')
| -rw-r--r-- | arch/powerpc/include/asm/book3s/64/radix-64k.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/book3s/64/radix-64k.h b/arch/powerpc/include/asm/book3s/64/radix-64k.h new file mode 100644 index 000000000..ccb78ca9d --- /dev/null +++ b/arch/powerpc/include/asm/book3s/64/radix-64k.h @@ -0,0 +1,23 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_POWERPC_PGTABLE_RADIX_64K_H +#define _ASM_POWERPC_PGTABLE_RADIX_64K_H + +/* + * For 64K page size supported index is 13/9/9/5 + */ +#define RADIX_PTE_INDEX_SIZE 5 /* 2MB huge page */ +#define RADIX_PMD_INDEX_SIZE 9 /* 1G huge page */ +#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) + +#define RADIX_PMD_FRAG_SIZE_SHIFT (RADIX_PMD_INDEX_SIZE + 3) +#define RADIX_PMD_FRAG_NR (PAGE_SIZE >> RADIX_PMD_FRAG_SIZE_SHIFT) + +#endif /* _ASM_POWERPC_PGTABLE_RADIX_64K_H */ |