diff options
Diffstat (limited to 'arch/riscv/include/asm/pgtable-64.h')
| -rw-r--r-- | arch/riscv/include/asm/pgtable-64.h | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/arch/riscv/include/asm/pgtable-64.h b/arch/riscv/include/asm/pgtable-64.h index 7e246e9f8d70..15f3ad5aee4f 100644 --- a/arch/riscv/include/asm/pgtable-64.h +++ b/arch/riscv/include/asm/pgtable-64.h @@ -6,6 +6,7 @@ #ifndef _ASM_RISCV_PGTABLE_64_H #define _ASM_RISCV_PGTABLE_64_H +#include <linux/bits.h> #include <linux/const.h> extern bool pgtable_l4_enabled; @@ -65,6 +66,13 @@ typedef struct { #define PTRS_PER_PMD (PAGE_SIZE / sizeof(pmd_t)) +/* + * rv64 PTE format: + * | 63 | 62 61 | 60 54 | 53 10 | 9 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 + * N MT RSV PFN reserved for SW D A G U X W R V + */ +#define _PAGE_PFN_MASK GENMASK(53, 10) + static inline int pud_present(pud_t pud) { return (pud_val(pud) & _PAGE_PRESENT); @@ -108,12 +116,12 @@ static inline unsigned long _pud_pfn(pud_t pud) static inline pmd_t *pud_pgtable(pud_t pud) { - return (pmd_t *)pfn_to_virt(pud_val(pud) >> _PAGE_PFN_SHIFT); + return (pmd_t *)pfn_to_virt(__page_val_to_pfn(pud_val(pud))); } static inline struct page *pud_page(pud_t pud) { - return pfn_to_page(pud_val(pud) >> _PAGE_PFN_SHIFT); + return pfn_to_page(__page_val_to_pfn(pud_val(pud))); } #define mm_p4d_folded mm_p4d_folded @@ -143,7 +151,7 @@ static inline pmd_t pfn_pmd(unsigned long pfn, pgprot_t prot) static inline unsigned long _pmd_pfn(pmd_t pmd) { - return pmd_val(pmd) >> _PAGE_PFN_SHIFT; + return __page_val_to_pfn(pmd_val(pmd)); } #define mk_pmd(page, prot) pfn_pmd(page_to_pfn(page), prot) |