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| author | Kristina Martsenko <kristina.martsenko@arm.com> | 2017-12-13 18:07:21 +0100 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2017-12-22 18:37:18 +0100 |
| commit | 75387b92635e7dca410c1ef92cfe510019248f76 (patch) | |
| tree | d3e2a0a1caee5599f1c53527a5671fd978da42a1 /arch/arm64/include/asm/pgalloc.h | |
| parent | arm64: don't open code page table entry creation (diff) | |
| download | linux-75387b92635e7dca410c1ef92cfe510019248f76.tar.xz linux-75387b92635e7dca410c1ef92cfe510019248f76.zip | |
arm64: handle 52-bit physical addresses in page table entries
The top 4 bits of a 52-bit physical address are positioned at bits
12..15 of a page table entry. Introduce macros to convert between a
physical address and its placement in a table entry, and change all
macros/functions that access PTEs to use them.
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Tested-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Tested-by: Bob Picco <bob.picco@oracle.com>
Reviewed-by: Bob Picco <bob.picco@oracle.com>
Signed-off-by: Kristina Martsenko <kristina.martsenko@arm.com>
[catalin.marinas@arm.com: some long lines wrapped]
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/include/asm/pgalloc.h')
| -rw-r--r-- | arch/arm64/include/asm/pgalloc.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/arm64/include/asm/pgalloc.h b/arch/arm64/include/asm/pgalloc.h index 5ca6a573a701..e9d9f1b006ef 100644 --- a/arch/arm64/include/asm/pgalloc.h +++ b/arch/arm64/include/asm/pgalloc.h @@ -44,7 +44,7 @@ static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd) static inline void __pud_populate(pud_t *pud, phys_addr_t pmd, pudval_t prot) { - set_pud(pud, __pud(pmd | prot)); + set_pud(pud, __pud(__phys_to_pud_val(pmd) | prot)); } static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd) @@ -73,7 +73,7 @@ static inline void pud_free(struct mm_struct *mm, pud_t *pud) static inline void __pgd_populate(pgd_t *pgdp, phys_addr_t pud, pgdval_t prot) { - set_pgd(pgdp, __pgd(pud | prot)); + set_pgd(pgdp, __pgd(__phys_to_pgd_val(pud) | prot)); } static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, pud_t *pud) @@ -129,7 +129,7 @@ static inline void pte_free(struct mm_struct *mm, pgtable_t pte) static inline void __pmd_populate(pmd_t *pmdp, phys_addr_t pte, pmdval_t prot) { - set_pmd(pmdp, __pmd(pte | prot)); + set_pmd(pmdp, __pmd(__phys_to_pmd_val(pte) | prot)); } /* |