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ARM: 6667/1: Fix early_pte_alloc() assumption about the Linux PTE

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With LPAE we no longer have software bits in a separate Linux PTE and
the early_pte_alloc() function should pass PTE_HWTABLE_OFF +
PTE_HWTABLE_SIZE to early_alloc() to avoid allocating extra memory.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Catalin Marinas 2011-02-14 12:58:04 +01:00 • committed by Russell King
parent 36bb94ba36
commit 410f14837a
1 changed files with 1 additions and 1 deletions
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2
arch/arm/mm/mmu.c
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@ -532,7 +532,7 @@ static void __init *early_alloc(unsigned long sz)
static pte_t * __init early_pte_alloc(pmd_t *pmd, unsigned long addr, unsigned long prot) static pte_t * __init early_pte_alloc(pmd_t *pmd, unsigned long addr, unsigned long prot)
{ {
if (pmd_none(*pmd)) { if (pmd_none(*pmd)) {
pte_t *pte = early_alloc(2 * PTRS_PER_PTE * sizeof(pte_t)); pte_t *pte = early_alloc(PTE_HWTABLE_OFF + PTE_HWTABLE_SIZE);
__pmd_populate(pmd, __pa(pte), prot); __pmd_populate(pmd, __pa(pte), prot);
} }
BUG_ON(pmd_bad(*pmd)); BUG_ON(pmd_bad(*pmd));