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Diffstat (limited to 'arch/arm64/mm/mmu.c')
-rw-r--r--arch/arm64/mm/mmu.c36
1 files changed, 2 insertions, 34 deletions
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index 0a472c41a67f..2c0e1dda8163 100644
--- a/arch/arm64/mm/mmu.c
+++ b/arch/arm64/mm/mmu.c
@@ -43,11 +43,6 @@
struct page *empty_zero_page;
EXPORT_SYMBOL(empty_zero_page);
-pgprot_t pgprot_default;
-EXPORT_SYMBOL(pgprot_default);
-
-static pmdval_t prot_sect_kernel;
-
struct cachepolicy {
const char policy[16];
u64 mair;
@@ -122,33 +117,6 @@ static int __init early_cachepolicy(char *p)
}
early_param("cachepolicy", early_cachepolicy);
-/*
- * Adjust the PMD section entries according to the CPU in use.
- */
-void __init init_mem_pgprot(void)
-{
- pteval_t default_pgprot;
- int i;
-
- default_pgprot = PTE_ATTRINDX(MT_NORMAL);
- prot_sect_kernel = PMD_TYPE_SECT | PMD_SECT_AF | PMD_ATTRINDX(MT_NORMAL);
-
-#ifdef CONFIG_SMP
- /*
- * Mark memory with the "shared" attribute for SMP systems
- */
- default_pgprot |= PTE_SHARED;
- prot_sect_kernel |= PMD_SECT_S;
-#endif
-
- for (i = 0; i < 16; i++) {
- unsigned long v = pgprot_val(protection_map[i]);
- protection_map[i] = __pgprot(v | default_pgprot);
- }
-
- pgprot_default = __pgprot(PTE_TYPE_PAGE | PTE_AF | default_pgprot);
-}
-
pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn,
unsigned long size, pgprot_t vma_prot)
{
@@ -205,7 +173,7 @@ static void __init alloc_init_pmd(pud_t *pud, unsigned long addr,
/* try section mapping first */
if (((addr | next | phys) & ~SECTION_MASK) == 0) {
pmd_t old_pmd =*pmd;
- set_pmd(pmd, __pmd(phys | prot_sect_kernel));
+ set_pmd(pmd, __pmd(phys | PROT_SECT_NORMAL_EXEC));
/*
* Check for previous table entries created during
* boot (__create_page_tables) and flush them.
@@ -417,7 +385,7 @@ int __meminit vmemmap_populate(unsigned long start, unsigned long end, int node)
if (!p)
return -ENOMEM;
- set_pmd(pmd, __pmd(__pa(p) | prot_sect_kernel));
+ set_pmd(pmd, __pmd(__pa(p) | PROT_SECT_NORMAL));
} else
vmemmap_verify((pte_t *)pmd, node, addr, next);
} while (addr = next, addr != end);