diff options
Diffstat (limited to 'target/linux/coldfire/patches/053-mcfv4e_brcache_inval.patch')
| -rw-r--r-- | target/linux/coldfire/patches/053-mcfv4e_brcache_inval.patch | 42 |
1 files changed, 0 insertions, 42 deletions
diff --git a/target/linux/coldfire/patches/053-mcfv4e_brcache_inval.patch b/target/linux/coldfire/patches/053-mcfv4e_brcache_inval.patch deleted file mode 100644 index dc551babf3..0000000000 --- a/target/linux/coldfire/patches/053-mcfv4e_brcache_inval.patch +++ /dev/null @@ -1,42 +0,0 @@ -From eba69831e8f35174e2e15e373a66f40dc0be8929 Mon Sep 17 00:00:00 2001 -From: Kurt Mahan <kmahan@freescale.com> -Date: Wed, 14 May 2008 12:23:12 -0600 -Subject: [PATCH] Force branch-cache invalidate on task switch. - -When finishing a task switch make sure the branch cache -gets invalidated to ensure no stale entries exist for -the next user space. - -LTIBName: mcfv4e-brcache-inval -Signed-off-by: Kurt Mahan <kmahan@freescale.com> ---- - include/asm-m68k/system.h | 15 +++++++++++++++ - 1 files changed, 15 insertions(+), 0 deletions(-) - ---- a/include/asm-m68k/system.h -+++ b/include/asm-m68k/system.h -@@ -5,9 +5,24 @@ - #include <linux/kernel.h> - #include <asm/segment.h> - #include <asm/entry.h> -+#include <asm/cfcache.h> - - #ifdef __KERNEL__ - -+#ifdef CONFIG_COLDFIRE -+#define FLUSH_BC (0x00040000) -+ -+#define finish_arch_switch(prev) do { \ -+ unsigned long tmpreg; \ -+ asm volatile ( "move.l %2,%0\n" \ -+ "orl %1,%0\n" \ -+ "movec %0,%%cacr" \ -+ : "=&d" (tmpreg) \ -+ : "id" (FLUSH_BC), "m" (shadow_cacr)); \ -+ } while(0) -+ -+#endif -+ - /* - * switch_to(n) should switch tasks to task ptr, first checking that - * ptr isn't the current task, in which case it does nothing. This |