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authorArnd Bergmann <arnd@arndb.de>2012-02-28 12:33:41 +0000
committerArnd Bergmann <arnd@arndb.de>2012-02-28 12:33:46 +0000
commitabf45ce84c4e36bd64aef20d7df9a79bd5e4b799 (patch)
treef118e135bdd60b680703d1b38c7fdc7b9d7c503d /arch/m68k/mm/mcfmmu.c
parent082f53c2f573c75a8f1610c587a43b6817e20f90 (diff)
parentb1f91a9ce335eb4e0fef17c10f39a438ac3fce9b (diff)
Merge branch 'imx/defconfig' of git://git.linaro.org/people/shawnguo/linux-2.6 into next/soc
* 'imx/defconfig' of git://git.linaro.org/people/shawnguo/linux-2.6: (2 commits) ARM: defconfig: imx_v6_v7: build in REGULATOR_FIXED_VOLTAGE ARM: imx: update imx_v6_v7_defconfig (upadte to v3.3-rc5)
Diffstat (limited to 'arch/m68k/mm/mcfmmu.c')
-rw-r--r--arch/m68k/mm/mcfmmu.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/arch/m68k/mm/mcfmmu.c b/arch/m68k/mm/mcfmmu.c
index babd5a97cdc..875b800ef0d 100644
--- a/arch/m68k/mm/mcfmmu.c
+++ b/arch/m68k/mm/mcfmmu.c
@@ -87,7 +87,7 @@ void __init paging_init(void)
int cf_tlb_miss(struct pt_regs *regs, int write, int dtlb, int extension_word)
{
- unsigned long flags, mmuar;
+ unsigned long flags, mmuar, mmutr;
struct mm_struct *mm;
pgd_t *pgd;
pmd_t *pmd;
@@ -137,9 +137,10 @@ int cf_tlb_miss(struct pt_regs *regs, int write, int dtlb, int extension_word)
if (!pte_dirty(*pte) && !KMAPAREA(mmuar))
set_pte(pte, pte_wrprotect(*pte));
- mmu_write(MMUTR, (mmuar & PAGE_MASK) | (asid << MMUTR_IDN) |
- (((int)(pte->pte) & (int)CF_PAGE_MMUTR_MASK)
- >> CF_PAGE_MMUTR_SHIFT) | MMUTR_V);
+ mmutr = (mmuar & PAGE_MASK) | (asid << MMUTR_IDN) | MMUTR_V;
+ if ((mmuar < TASK_UNMAPPED_BASE) || (mmuar >= TASK_SIZE))
+ mmutr |= (pte->pte & CF_PAGE_MMUTR_MASK) >> CF_PAGE_MMUTR_SHIFT;
+ mmu_write(MMUTR, mmutr);
mmu_write(MMUDR, (pte_val(*pte) & PAGE_MASK) |
((pte->pte) & CF_PAGE_MMUDR_MASK) | MMUDR_SZ_8KB | MMUDR_X);