diff options
Diffstat (limited to 'arch/mips')
| -rw-r--r-- | arch/mips/include/asm/page.h | 8 | ||||
| -rw-r--r-- | arch/mips/mm/tlb-r4k.c | 20 |
2 files changed, 22 insertions, 6 deletions
diff --git a/arch/mips/include/asm/page.h b/arch/mips/include/asm/page.h index e59cd1ac09c2..d41790928c64 100644 --- a/arch/mips/include/asm/page.h +++ b/arch/mips/include/asm/page.h @@ -38,6 +38,14 @@ #define HPAGE_SIZE (_AC(1,UL) << HPAGE_SHIFT) #define HPAGE_MASK (~(HPAGE_SIZE - 1)) #define HUGETLB_PAGE_ORDER (HPAGE_SHIFT - PAGE_SHIFT) +#else /* !CONFIG_HUGETLB_PAGE */ +# ifndef BUILD_BUG +# define BUILD_BUG() do { extern void __build_bug(void); __build_bug(); } while (0) +# endif +#define HPAGE_SHIFT ({BUILD_BUG(); 0; }) +#define HPAGE_SIZE ({BUILD_BUG(); 0; }) +#define HPAGE_MASK ({BUILD_BUG(); 0; }) +#define HUGETLB_PAGE_ORDER ({BUILD_BUG(); 0; }) #endif /* CONFIG_HUGETLB_PAGE */ #ifndef __ASSEMBLY__ diff --git a/arch/mips/mm/tlb-r4k.c b/arch/mips/mm/tlb-r4k.c index 0d394e0e8837..88dc49cfa163 100644 --- a/arch/mips/mm/tlb-r4k.c +++ b/arch/mips/mm/tlb-r4k.c @@ -120,22 +120,30 @@ void local_flush_tlb_range(struct vm_area_struct *vma, unsigned long start, if (cpu_context(cpu, mm) != 0) { unsigned long size, flags; + int huge = is_vm_hugetlb_page(vma); ENTER_CRITICAL(flags); - size = (end - start + (PAGE_SIZE - 1)) >> PAGE_SHIFT; - size = (size + 1) >> 1; + if (huge) { + start = round_down(start, HPAGE_SIZE); + end = round_up(end, HPAGE_SIZE); + size = (end - start) >> HPAGE_SHIFT; + } else { + start = round_down(start, PAGE_SIZE << 1); + end = round_up(end, PAGE_SIZE << 1); + size = (end - start) >> (PAGE_SHIFT + 1); + } if (size <= current_cpu_data.tlbsize/2) { int oldpid = read_c0_entryhi(); int newpid = cpu_asid(cpu, mm); - start &= (PAGE_MASK << 1); - end += ((PAGE_SIZE << 1) - 1); - end &= (PAGE_MASK << 1); while (start < end) { int idx; write_c0_entryhi(start | newpid); - start += (PAGE_SIZE << 1); + if (huge) + start += HPAGE_SIZE; + else + start += (PAGE_SIZE << 1); mtc0_tlbw_hazard(); tlb_probe(); tlb_probe_hazard(); |