diff options
| author | Hirokazu Takata <takata@linux-m32r.org> | 2009-08-11 23:12:41 +0900 |
|---|---|---|
| committer | Hirokazu Takata <takata@linux-m32r.org> | 2009-10-04 12:02:35 +0900 |
| commit | 2cff5e1a83c61613febf814640dc877b98d585e6 (patch) | |
| tree | 052efa0267b2636f2cca36cf1accc8a5b8062ff5 /arch/m32r | |
| parent | 17d857be649a21ca90008c6dc425d849fa83db5c (diff) | |
m32r: fix tme_handler
Fix pmd_bad check code of tme_handler (TLB Miss Exception handler).
The correct _KERNPG_TABLE value is not 0x263(=611) but 0x163.
Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
Diffstat (limited to 'arch/m32r')
| -rw-r--r-- | arch/m32r/mm/mmu.S | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/arch/m32r/mm/mmu.S b/arch/m32r/mm/mmu.S index 49a6d16a3d58..e9491a5ae827 100644 --- a/arch/m32r/mm/mmu.S +++ b/arch/m32r/mm/mmu.S @@ -150,9 +150,13 @@ ENTRY(tme_handler) ; pmd = pmd_offset(pgd, address); ld r3, @r3 ; r3: pmd data - ldi r2, #-4096 beqz r3, 3f ; pmd_none(*pmd) ? + and3 r2, r3, #0xfff + add3 r2, r2, #-355 ; _KERNPG_TABLE(=0x163) + bnez r2, 3f ; pmd_bad(*pmd) ? + ldi r2, #-4096 + ; pte = pte_offset(pmd, address); and r2, r3 ; r2: pte base addr srl3 r3, r0, #10 @@ -263,9 +267,9 @@ ENTRY(tme_handler) ld r1, @r3 ; r1: pmd beqz r1, 3f ; pmd_none(*pmd) ? ; - and3 r1, r1, #0xeff - ldi r4, #611 ; _KERNPG_TABLE(=611) - bne r1, r4, 3f ; !pmd_bad(*pmd) ? + and3 r1, r1, #0x3ff + ldi r4, #0x163 ; _KERNPG_TABLE(=0x163) + bne r1, r4, 3f ; pmd_bad(*pmd) ? .fillinsn 4: |