linux/arch/arc
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
..
boot ARC: [plat-hsdk]: Enable AXI DW DMAC support 2019-02-25 08:52:16 -08:00
configs ARC updates for 5.1-rc2 2019-03-20 11:01:52 -07:00
include asm-generic/tlb, arch: Provide generic VIPT cache flush 2019-04-03 10:32:41 +02:00
kernel ARC updates for 5.1-rc2 2019-03-20 11:01:52 -07:00
lib ARCv2: Add explcit unaligned access support (and ability to disable too) 2019-02-25 12:10:58 -08:00
mm treewide: add checks for the return value of memblock_alloc*() 2019-03-12 10:04:02 -07:00
oprofile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
plat-axs10x PCI: consolidate PCI config entry in drivers/pci 2018-11-23 11:45:34 +09:00
plat-eznps arch: arc: Kconfig: pedantic formatting 2019-03-11 22:03:18 -07:00
plat-hsdk ARCv2: support manual regfile save on interrupts 2019-02-21 11:03:18 -08:00
plat-sim ARC: [plat-sim] Include this platform unconditionally 2017-08-04 13:49:47 +05:30
plat-tb10x arc: select GPIOLIB directly 2016-04-26 14:07:59 +02:00
Kbuild
Kconfig ARC updates for 5.1-rc2 2019-03-20 11:01:52 -07:00
Kconfig.debug Kconfig: consolidate the "Kernel hacking" menu 2018-08-02 08:06:48 +09:00
Makefile ARCv2: Add explcit unaligned access support (and ability to disable too) 2019-02-25 12:10:58 -08:00