summaryrefslogtreecommitdiff
path: root/arch/sparc/Kconfig
diff options
context:
space:
mode:
authorPeter Zijlstra <peterz@infradead.org>2022-07-08 10:18:03 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2022-07-21 20:50:13 +0300
commit1e9fdf21a4339b102539f476a9842e7526c01939 (patch)
tree16bddb00103c3b96e15dc5d967b7aa59a3b820fc /arch/sparc/Kconfig
parent23a67619bc7e12e1b3776802f16084530b357a5d (diff)
downloadlinux-1e9fdf21a4339b102539f476a9842e7526c01939.tar.xz
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/sparc/Kconfig')
-rw-r--r--arch/sparc/Kconfig2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index ba449c47effd..4f7d1dfbc608 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -67,6 +67,8 @@ config SPARC64
select HAVE_KRETPROBES
select HAVE_KPROBES
select MMU_GATHER_RCU_TABLE_FREE if SMP
+ select MMU_GATHER_MERGE_VMAS
+ select MMU_GATHER_NO_FLUSH_CACHE
select HAVE_ARCH_TRANSPARENT_HUGEPAGE
select HAVE_DYNAMIC_FTRACE
select HAVE_FTRACE_MCOUNT_RECORD