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Peter Zijlstra e7fd28a706 asm-generic/tlb, arch: Provide generic VIPT cache flush 
The one obvious thing SH and ARM want is a sensible default for
tlb_start_vma(). (also: https://lkml.org/lkml/2004/1/15/6 )

Avoid all VIPT architectures providing their own tlb_start_vma()
implementation and rely on architectures to provide a no-op
flush_cache_range() when it is not relevant.

This patch makes tlb_start_vma() default to flush_cache_range(), which
should be right and sufficient. The only exceptions that I found where
(oddly):

  - m68k-mmu
  - sparc64
  - unicore

Those architectures appear to have flush_cache_range(), but their
current tlb_start_vma() does not call it.

No change in behavior intended.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: David Miller <davem@davemloft.net>
Cc: Guan Xuetao <gxt@pku.edu.cn>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Nick Piggin <npiggin@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@surriel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2019-04-03 10:32:41 +02:00
..
alpha
KVM: export <linux/kvm_para.h> and <asm/kvm_para.h> iif KVM is supported
2019-03-28 17:27:42 +01:00
arc
asm-generic/tlb, arch: Provide generic VIPT cache flush
2019-04-03 10:32:41 +02:00
arm
asm-generic/tlb, arch: Provide CONFIG_HAVE_MMU_GATHER_PAGE_SIZE
2019-04-03 10:32:40 +02:00
arm64
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
2019-03-31 08:55:59 -07:00
c6x
KVM: export <linux/kvm_para.h> and <asm/kvm_para.h> iif KVM is supported
2019-03-28 17:27:42 +01:00
csky
kbuild: force all architectures except um to include mandatory-y
2019-03-17 12:56:32 +09:00
h8300
KVM: export <linux/kvm_para.h> and <asm/kvm_para.h> iif KVM is supported
2019-03-28 17:27:42 +01:00
hexagon
KVM: export <linux/kvm_para.h> and <asm/kvm_para.h> iif KVM is supported
2019-03-28 17:27:42 +01:00
ia64
asm-generic/tlb, arch: Provide CONFIG_HAVE_MMU_GATHER_PAGE_SIZE
2019-04-03 10:32:40 +02:00
m68k
KVM: export <linux/kvm_para.h> and <asm/kvm_para.h> iif KVM is supported
2019-03-28 17:27:42 +01:00
microblaze
KVM: export <linux/kvm_para.h> and <asm/kvm_para.h> iif KVM is supported
2019-03-28 17:27:42 +01:00
mips
asm-generic/tlb, arch: Provide generic VIPT cache flush
2019-04-03 10:32:41 +02:00
nds32
asm-generic/tlb, arch: Provide generic VIPT cache flush
2019-04-03 10:32:41 +02:00
nios2
asm-generic/tlb, arch: Provide generic VIPT cache flush
2019-04-03 10:32:41 +02:00
openrisc
KVM: export <linux/kvm_para.h> and <asm/kvm_para.h> iif KVM is supported
2019-03-28 17:27:42 +01:00
parisc
asm-generic/tlb, arch: Provide generic VIPT cache flush
2019-04-03 10:32:41 +02:00
powerpc
asm-generic/tlb, arch: Provide CONFIG_HAVE_MMU_GATHER_PAGE_SIZE
2019-04-03 10:32:40 +02:00
riscv
kbuild: force all architectures except um to include mandatory-y
2019-03-17 12:56:32 +09:00
s390
asm-generic/tlb, arch: Provide CONFIG_HAVE_MMU_GATHER_PAGE_SIZE
2019-04-03 10:32:40 +02:00
sh
asm-generic/tlb, arch: Provide CONFIG_HAVE_MMU_GATHER_PAGE_SIZE
2019-04-03 10:32:40 +02:00
sparc
asm-generic/tlb, arch: Provide generic VIPT cache flush
2019-04-03 10:32:41 +02:00
um
asm-generic/tlb, arch: Provide CONFIG_HAVE_MMU_GATHER_PAGE_SIZE
2019-04-03 10:32:40 +02:00
unicore32
KVM: export <linux/kvm_para.h> and <asm/kvm_para.h> iif KVM is supported
2019-03-28 17:27:42 +01:00
x86
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
2019-03-31 08:55:59 -07:00
xtensa
asm-generic/tlb, arch: Provide generic VIPT cache flush
2019-04-03 10:32:41 +02:00
.gitignore
…
Kconfig
asm-generic/tlb, arch: Provide CONFIG_HAVE_MMU_GATHER_PAGE_SIZE
2019-04-03 10:32:40 +02:00