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| author | Po-Yu Chuang <ratbert.chuang@gmail.com> | 2013-06-07 13:15:45 +0200 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2013-06-17 11:30:50 +0200 |
| commit | 37468b30a3948bbbdf9d664678f611510d987e65 (patch) | |
| tree | d46579a471170b90f709125c35bec5c3dbe1bbc3 /arch/arm/mm/mmu.c | |
| parent | ARM: 7752/1: errata: LoUIS bit field in CLIDR register is incorrect (diff) | |
| download | linux-37468b30a3948bbbdf9d664678f611510d987e65.tar.xz linux-37468b30a3948bbbdf9d664678f611510d987e65.zip | |
ARM: 7753/1: map_init_section flushes incorrect pmd
This bug was introduced in commit e651eab0.
Some v4/v5 platforms failed to boot due to this.
Signed-off-by: Po-Yu Chuang <ratbert.chuang@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mm/mmu.c')
| -rw-r--r-- | arch/arm/mm/mmu.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c index e0d8565671a6..4d409e6a552d 100644 --- a/arch/arm/mm/mmu.c +++ b/arch/arm/mm/mmu.c @@ -616,10 +616,12 @@ static void __init alloc_init_pte(pmd_t *pmd, unsigned long addr, } while (pte++, addr += PAGE_SIZE, addr != end); } -static void __init map_init_section(pmd_t *pmd, unsigned long addr, +static void __init __map_init_section(pmd_t *pmd, unsigned long addr, unsigned long end, phys_addr_t phys, const struct mem_type *type) { + pmd_t *p = pmd; + #ifndef CONFIG_ARM_LPAE /* * In classic MMU format, puds and pmds are folded in to @@ -638,7 +640,7 @@ static void __init map_init_section(pmd_t *pmd, unsigned long addr, phys += SECTION_SIZE; } while (pmd++, addr += SECTION_SIZE, addr != end); - flush_pmd_entry(pmd); + flush_pmd_entry(p); } static void __init alloc_init_pmd(pud_t *pud, unsigned long addr, @@ -661,7 +663,7 @@ static void __init alloc_init_pmd(pud_t *pud, unsigned long addr, */ if (type->prot_sect && ((addr | next | phys) & ~SECTION_MASK) == 0) { - map_init_section(pmd, addr, next, phys, type); + __map_init_section(pmd, addr, next, phys, type); } else { alloc_init_pte(pmd, addr, next, __phys_to_pfn(phys), type); |