diff options
| author | Peter Zijlstra <peterz@infradead.org> | 2022-07-08 09:18:03 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-07-21 10:50:13 -0700 |
| commit | 1e9fdf21a4339b102539f476a9842e7526c01939 (patch) | |
| tree | 16bddb00103c3b96e15dc5d967b7aa59a3b820fc /arch/csky | |
| parent | 23a67619bc7e12e1b3776802f16084530b357a5d (diff) | |
mmu_gather: Remove per arch tlb_{start,end}_vma()
Scattered across the archs are 3 basic forms of tlb_{start,end}_vma().
Provide two new MMU_GATHER_knobs to enumerate them and remove the per
arch tlb_{start,end}_vma() implementations.
- MMU_GATHER_NO_FLUSH_CACHE indicates the arch has flush_cache_range()
but does *NOT* want to call it for each VMA.
- MMU_GATHER_MERGE_VMAS indicates the arch wants to merge the
invalidate across multiple VMAs if possible.
With these it is possible to capture the three forms:
1) empty stubs;
select MMU_GATHER_NO_FLUSH_CACHE and MMU_GATHER_MERGE_VMAS
2) start: flush_cache_range(), end: empty;
select MMU_GATHER_MERGE_VMAS
3) start: flush_cache_range(), end: flush_tlb_range();
default
Obviously, if the architecture does not have flush_cache_range() then
it also doesn't need to select MMU_GATHER_NO_FLUSH_CACHE.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Will Deacon <will@kernel.org>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/csky')
| -rw-r--r-- | arch/csky/include/asm/tlb.h | 13 |
1 files changed, 0 insertions, 13 deletions
diff --git a/arch/csky/include/asm/tlb.h b/arch/csky/include/asm/tlb.h index 3498e65f59f8..750d041938d8 100644 --- a/arch/csky/include/asm/tlb.h +++ b/arch/csky/include/asm/tlb.h @@ -4,19 +4,6 @@ #define __ASM_CSKY_TLB_H #include <asm/cacheflush.h> - -#define tlb_start_vma(tlb, vma) \ - do { \ - if (!(tlb)->fullmm) \ - flush_cache_range(vma, (vma)->vm_start, (vma)->vm_end); \ - } while (0) - -#define tlb_end_vma(tlb, vma) \ - do { \ - if (!(tlb)->fullmm) \ - flush_tlb_range(vma, (vma)->vm_start, (vma)->vm_end); \ - } while (0) - #define tlb_flush(tlb) flush_tlb_mm((tlb)->mm) #include <asm-generic/tlb.h> |