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| author |   Catalin Marinas <catalin.marinas@arm.com> | 2017-12-22 17:40:58 +0000 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2017-12-22 17:40:58 +0000 |
| commit | 1f911c3a1140e1668e68791fb6dd07757e2f3956 (patch) | |
| tree | 5ff4161bd109c2b54e538fae78877c7626e56af5 /arch/arm64/mm/mmu.c | |
| parent | Merge branch 'kpti' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux (diff) | |
| parent | arm64: enable 52-bit physical address support (diff) | |
| download | linux-dev-1f911c3a1140e1668e68791fb6dd07757e2f3956.tar.xz linux-dev-1f911c3a1140e1668e68791fb6dd07757e2f3956.zip | |
Merge branch 'for-next/52-bit-pa' into for-next/core
* for-next/52-bit-pa:
arm64: enable 52-bit physical address support
arm64: allow ID map to be extended to 52 bits
arm64: handle 52-bit physical addresses in page table entries
arm64: don't open code page table entry creation
arm64: head.S: handle 52-bit PAs in PTEs in early page table setup
arm64: handle 52-bit addresses in TTBR
arm64: limit PA size to supported range
arm64: add kconfig symbol to configure physical address size
Diffstat (limited to 'arch/arm64/mm/mmu.c')
| -rw-r--r-- | arch/arm64/mm/mmu.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c index 916d9ced1c3f..4071602031ed 100644 --- a/arch/arm64/mm/mmu.c +++ b/arch/arm64/mm/mmu.c @@ -50,6 +50,7 @@ #define NO_CONT_MAPPINGS BIT(1) u64 idmap_t0sz = TCR_T0SZ(VA_BITS); +u64 idmap_ptrs_per_pgd = PTRS_PER_PGD; u64 kimage_voffset __ro_after_init; EXPORT_SYMBOL(kimage_voffset); @@ -601,8 +602,8 @@ static void __init map_kernel(pgd_t *pgd) * entry instead. */ BUG_ON(!IS_ENABLED(CONFIG_ARM64_16K_PAGES)); - set_pud(pud_set_fixmap_offset(pgd, FIXADDR_START), - __pud(__pa_symbol(bm_pmd) | PUD_TYPE_TABLE)); + pud_populate(&init_mm, pud_set_fixmap_offset(pgd, FIXADDR_START), + lm_alias(bm_pmd)); pud_clear_fixmap(); } else { BUG(); @@ -717,7 +718,7 @@ int __meminit vmemmap_populate(unsigned long start, unsigned long end, int node) if (!p) return -ENOMEM; - set_pmd(pmd, __pmd(__pa(p) | PROT_SECT_NORMAL)); + pmd_set_huge(pmd, __pa(p), __pgprot(PROT_SECT_NORMAL)); } else vmemmap_verify((pte_t *)pmd, node, addr, next); } while (addr = next, addr != end); @@ -910,15 +911,19 @@ int __init arch_ioremap_pmd_supported(void) int pud_set_huge(pud_t *pud, phys_addr_t phys, pgprot_t prot) { + pgprot_t sect_prot = __pgprot(PUD_TYPE_SECT | + pgprot_val(mk_sect_prot(prot))); BUG_ON(phys & ~PUD_MASK); - set_pud(pud, __pud(phys | PUD_TYPE_SECT | pgprot_val(mk_sect_prot(prot)))); + set_pud(pud, pfn_pud(__phys_to_pfn(phys), sect_prot)); return 1; } int pmd_set_huge(pmd_t *pmd, phys_addr_t phys, pgprot_t prot) { + pgprot_t sect_prot = __pgprot(PMD_TYPE_SECT | + pgprot_val(mk_sect_prot(prot))); BUG_ON(phys & ~PMD_MASK); - set_pmd(pmd, __pmd(phys | PMD_TYPE_SECT | pgprot_val(mk_sect_prot(prot)))); + set_pmd(pmd, pfn_pmd(__phys_to_pfn(phys), sect_prot)); return 1; } |