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authorPeter Zijlstra <peterz@infradead.org>2022-07-08 09:18:03 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2022-07-21 19:50:13 +0200
commit1e9fdf21a4339b102539f476a9842e7526c01939 (patch)
tree16bddb00103c3b96e15dc5d967b7aa59a3b820fc /arch/csky/include/asm/tlb.h
parentscripts/gdb: Fix gdb 'lx-symbols' command (diff)
downloadlinux-1e9fdf21a4339b102539f476a9842e7526c01939.tar.xz
linux-1e9fdf21a4339b102539f476a9842e7526c01939.zip
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/include/asm/tlb.h')
-rw-r--r--arch/csky/include/asm/tlb.h13
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>