diff options
Diffstat (limited to 'arch/arm64/mm/mmu.c')
-rw-r--r-- | arch/arm64/mm/mmu.c | 55 |
1 files changed, 15 insertions, 40 deletions
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c index 556154d821bf..27217ba12e57 100644 --- a/arch/arm64/mm/mmu.c +++ b/arch/arm64/mm/mmu.c @@ -1137,53 +1137,28 @@ static void free_empty_tables(unsigned long addr, unsigned long end, } #endif +void __meminit vmemmap_set_pmd(pmd_t *pmdp, void *p, int node, + unsigned long addr, unsigned long next) +{ + pmd_set_huge(pmdp, __pa(p), __pgprot(PROT_SECT_NORMAL)); +} + +int __meminit vmemmap_check_pmd(pmd_t *pmdp, int node, + unsigned long addr, unsigned long next) +{ + vmemmap_verify((pte_t *)pmdp, node, addr, next); + return 1; +} + int __meminit vmemmap_populate(unsigned long start, unsigned long end, int node, struct vmem_altmap *altmap) { - unsigned long addr = start; - unsigned long next; - pgd_t *pgdp; - p4d_t *p4dp; - pud_t *pudp; - pmd_t *pmdp; - WARN_ON((start < VMEMMAP_START) || (end > VMEMMAP_END)); if (!ARM64_KERNEL_USES_PMD_MAPS) return vmemmap_populate_basepages(start, end, node, altmap); - - do { - next = pmd_addr_end(addr, end); - - pgdp = vmemmap_pgd_populate(addr, node); - if (!pgdp) - return -ENOMEM; - - p4dp = vmemmap_p4d_populate(pgdp, addr, node); - if (!p4dp) - return -ENOMEM; - - pudp = vmemmap_pud_populate(p4dp, addr, node); - if (!pudp) - return -ENOMEM; - - pmdp = pmd_offset(pudp, addr); - if (pmd_none(READ_ONCE(*pmdp))) { - void *p = NULL; - - p = vmemmap_alloc_block_buf(PMD_SIZE, node, altmap); - if (!p) { - if (vmemmap_populate_basepages(addr, next, node, altmap)) - return -ENOMEM; - continue; - } - - pmd_set_huge(pmdp, __pa(p), __pgprot(PROT_SECT_NORMAL)); - } else - vmemmap_verify((pte_t *)pmdp, node, addr, next); - } while (addr = next, addr != end); - - return 0; + else + return vmemmap_populate_hugepages(start, end, node, altmap); } #ifdef CONFIG_MEMORY_HOTPLUG |