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| author | Paul Walmsley <paul.walmsley@sifive.com> | 2019-11-22 18:58:34 -0800 |
|---|---|---|
| committer | Paul Walmsley <paul.walmsley@sifive.com> | 2019-11-22 18:58:34 -0800 |
| commit | 4a979862dde46b738316014ca4995eae2f428413 (patch) | |
| tree | f9365962647e2fc92a6af614e305e46a0ae1928d /arch/riscv/mm | |
| parent | e8cad25b7e8ac8a1ecd7d7243cbea9cfa7049bee (diff) | |
| parent | c5ab54e9945b5f3dc8e9c31b93bb334fcea126f4 (diff) | |
Merge branch 'next/misc' into for-next
Diffstat (limited to 'arch/riscv/mm')
| -rw-r--r-- | arch/riscv/mm/init.c | 13 |
1 files changed, 4 insertions, 9 deletions
diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c index 573463d1c799..e83df7a24938 100644 --- a/arch/riscv/mm/init.c +++ b/arch/riscv/mm/init.c @@ -273,7 +273,6 @@ static void __init create_pmd_mapping(pmd_t *pmdp, #define get_pgd_next_virt(__pa) get_pmd_virt(__pa) #define create_pgd_next_mapping(__nextp, __va, __pa, __sz, __prot) \ create_pmd_mapping(__nextp, __va, __pa, __sz, __prot) -#define PTE_PARENT_SIZE PMD_SIZE #define fixmap_pgd_next fixmap_pmd #else #define pgd_next_t pte_t @@ -281,7 +280,6 @@ static void __init create_pmd_mapping(pmd_t *pmdp, #define get_pgd_next_virt(__pa) get_pte_virt(__pa) #define create_pgd_next_mapping(__nextp, __va, __pa, __sz, __prot) \ create_pte_mapping(__nextp, __va, __pa, __sz, __prot) -#define PTE_PARENT_SIZE PGDIR_SIZE #define fixmap_pgd_next fixmap_pte #endif @@ -314,14 +312,11 @@ static void __init create_pgd_mapping(pgd_t *pgdp, static uintptr_t __init best_map_size(phys_addr_t base, phys_addr_t size) { - uintptr_t map_size = PAGE_SIZE; + /* Upgrade to PMD_SIZE mappings whenever possible */ + if ((base & (PMD_SIZE - 1)) || (size & (PMD_SIZE - 1))) + return PAGE_SIZE; - /* Upgrade to PMD/PGDIR mappings whenever possible */ - if (!(base & (PTE_PARENT_SIZE - 1)) && - !(size & (PTE_PARENT_SIZE - 1))) - map_size = PTE_PARENT_SIZE; - - return map_size; + return PMD_SIZE; } /* |