diff options
Diffstat (limited to 'arch/sparc64/mm')
| -rw-r--r-- | arch/sparc64/mm/fault.c | 6 | ||||
| -rw-r--r-- | arch/sparc64/mm/hugetlbpage.c | 7 |
2 files changed, 12 insertions, 1 deletions
diff --git a/arch/sparc64/mm/fault.c b/arch/sparc64/mm/fault.c index 0db2f7d9fab5..6e002aacb961 100644 --- a/arch/sparc64/mm/fault.c +++ b/arch/sparc64/mm/fault.c @@ -327,8 +327,12 @@ asmlinkage void __kprobes do_sparc64_fault(struct pt_regs *regs) insn = get_fault_insn(regs, 0); if (!insn) goto continue_fault; + /* All loads, stores and atomics have bits 30 and 31 both set + * in the instruction. Bit 21 is set in all stores, but we + * have to avoid prefetches which also have bit 21 set. + */ if ((insn & 0xc0200000) == 0xc0200000 && - (insn & 0x1780000) != 0x1680000) { + (insn & 0x01780000) != 0x01680000) { /* Don't bother updating thread struct value, * because update_mmu_cache only cares which tlb * the access came from. diff --git a/arch/sparc64/mm/hugetlbpage.c b/arch/sparc64/mm/hugetlbpage.c index 074620d413d4..fbbbebbad8a4 100644 --- a/arch/sparc64/mm/hugetlbpage.c +++ b/arch/sparc64/mm/hugetlbpage.c @@ -198,6 +198,13 @@ pte_t *huge_pte_alloc(struct mm_struct *mm, unsigned long addr) pmd_t *pmd; pte_t *pte = NULL; + /* We must align the address, because our caller will run + * set_huge_pte_at() on whatever we return, which writes out + * all of the sub-ptes for the hugepage range. So we have + * to give it the first such sub-pte. + */ + addr &= HPAGE_MASK; + pgd = pgd_offset(mm, addr); pud = pud_alloc(mm, pgd, addr); if (pud) { |