releases/3.4.83/arm-7957-1-add-dsb-after-icache-flush-in-__flush_icache_all.patch

   1 From 39544ac9df20f73e49fc6b9ac19ff533388c82c0 Mon Sep 17 00:00:00 2001
   2 From: Vinayak Kale <vkale@apm.com>
   3 Date: Wed, 12 Feb 2014 07:30:01 +0100
   4 Subject: ARM: 7957/1: add DSB after icache flush in __flush_icache_all()
   5
   6 From: Vinayak Kale <vkale@apm.com>
   7
   8 commit 39544ac9df20f73e49fc6b9ac19ff533388c82c0 upstream.
   9
  10 Add DSB after icache flush to complete the cache maintenance operation.
  11
  12 Signed-off-by: Vinayak Kale <vkale@apm.com>
  13 Acked-by: Catalin Marinas <catalin.marinas@arm.com>
  14 Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
  15 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
  16
  17 ---
  18  arch/arm/include/asm/cacheflush.h |    1 +
  19  1 file changed, 1 insertion(+)
  20
  21 --- a/arch/arm/include/asm/cacheflush.h
  22 +++ b/arch/arm/include/asm/cacheflush.h
  23 @@ -202,6 +202,7 @@ extern void copy_to_user_page(struct vm_
  24  static inline void __flush_icache_all(void)
  25  {
  26         __flush_icache_preferred();
  27 +       dsb();
  28  }
  29
  30  #define flush_cache_all()              __cpuc_flush_kern_all()