diff options
author | David Howells <dhowells@redhat.com> | 2010-10-27 17:28:49 +0100 |
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committer | David Howells <dhowells@redhat.com> | 2010-10-27 17:28:49 +0100 |
commit | 492e675116003b99dfcf0fa70084027e86bc0161 (patch) | |
tree | c799a3c3f3226700e44dfe323f7c3f1764755049 /arch/mn10300/include/asm/tlbflush.h | |
parent | 8f19e3daf3fffee9e18a8812067a6a4b538ae6c8 (diff) |
MN10300: Rename __flush_tlb*() to local_flush_tlb*()
Rename __flush_tlb*() to local_flush_tlb*() as it's more appropriate, and ready
to differentiate local from global TLB flushes when SMP is introduced.
Whilst we're at it, get rid of __flush_tlb_global() and make
local_flush_tlb_page() take an mm_struct pointer rather than VMA pointer.
Signed-off-by: David Howells <dhowells@redhat.com>
Diffstat (limited to 'arch/mn10300/include/asm/tlbflush.h')
-rw-r--r-- | arch/mn10300/include/asm/tlbflush.h | 56 |
1 files changed, 35 insertions, 21 deletions
diff --git a/arch/mn10300/include/asm/tlbflush.h b/arch/mn10300/include/asm/tlbflush.h index 1a7e29281c5d..5d54bf57e6c3 100644 --- a/arch/mn10300/include/asm/tlbflush.h +++ b/arch/mn10300/include/asm/tlbflush.h @@ -13,21 +13,37 @@ #include <asm/processor.h> -#define __flush_tlb() \ -do { \ - int w; \ - __asm__ __volatile__ \ - (" mov %1,%0 \n" \ - " or %2,%0 \n" \ - " mov %0,%1 \n" \ - : "=d"(w) \ - : "m"(MMUCTR), "i"(MMUCTR_IIV|MMUCTR_DIV) \ - : "cc", "memory" \ - ); \ -} while (0) +/** + * local_flush_tlb - Flush the current MM's entries from the local CPU's TLBs + */ +static inline void local_flush_tlb(void) +{ + int w; + asm volatile( + " mov %1,%0 \n" + " or %2,%0 \n" + " mov %0,%1 \n" + : "=d"(w) + : "m"(MMUCTR), "i"(MMUCTR_IIV|MMUCTR_DIV) + : "cc", "memory"); +} -#define __flush_tlb_all() __flush_tlb() -#define __flush_tlb_one(addr) __flush_tlb() +/** + * local_flush_tlb_all - Flush all entries from the local CPU's TLBs + */ +#define local_flush_tlb_all() local_flush_tlb() + +/** + * local_flush_tlb_one - Flush one entry from the local CPU's TLBs + */ +#define local_flush_tlb_one(addr) local_flush_tlb() + +/** + * local_flush_tlb_page - Flush a page's entry from the local CPU's TLBs + * @mm: The MM to flush for + * @addr: The address of the target page in RAM (not its page struct) + */ +extern void local_flush_tlb_page(struct mm_struct *mm, unsigned long addr); /* @@ -43,14 +59,14 @@ do { \ #define flush_tlb_all() \ do { \ preempt_disable(); \ - __flush_tlb_all(); \ + local_flush_tlb_all(); \ preempt_enable(); \ } while (0) #define flush_tlb_mm(mm) \ do { \ preempt_disable(); \ - __flush_tlb_all(); \ + local_flush_tlb_all(); \ preempt_enable(); \ } while (0) @@ -59,13 +75,13 @@ do { \ unsigned long __s __attribute__((unused)) = (start); \ unsigned long __e __attribute__((unused)) = (end); \ preempt_disable(); \ - __flush_tlb_all(); \ + local_flush_tlb_all(); \ preempt_enable(); \ } while (0) +#define flush_tlb_page(vma, addr) local_flush_tlb_page((vma)->vm_mm, addr) +#define flush_tlb() flush_tlb_all() -#define __flush_tlb_global() flush_tlb_all() -#define flush_tlb() flush_tlb_all() #define flush_tlb_kernel_range(start, end) \ do { \ unsigned long __s __attribute__((unused)) = (start); \ @@ -73,8 +89,6 @@ do { \ flush_tlb_all(); \ } while (0) -extern void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr); - #define flush_tlb_pgtables(mm, start, end) do {} while (0) #endif /* _ASM_TLBFLUSH_H */ |