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Merge tag 'please-pull-ia64-erratum' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux

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Pull itanium erratum fix from Tony Luck:
 "Small workaround for a rare, but annoying, erratum #237"

* tag 'please-pull-ia64-erratum' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux:
  [IA64] Change default PSR.ac from '1' to '0' (Fix erratum #237)
This commit is contained in:
Linus Torvalds
2014-04-16 11:22:45 -07:00
parent 10ec34fcb1 c0b5a64d93
commit 7d38cc0290
3 changed files with 3 additions and 3 deletions
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arch/ia64/kernel/head.S
+1 -1
View File
@@ -259,7 +259,7 @@ start_ap:
* Switch into virtual mode:
*/
movl r16=(IA64_PSR_IT|IA64_PSR_IC|IA64_PSR_DT|IA64_PSR_RT|IA64_PSR_DFH|IA64_PSR_BN \
|IA64_PSR_DI|IA64_PSR_AC)
|IA64_PSR_DI)
;;
mov cr.ipsr=r16
movl r17=1f
arch/ia64/kernel/ivt.S
+1 -1
View File
@@ -58,7 +58,7 @@
#include <asm/unistd.h>
#include <asm/errno.h>
#if 1
#if 0
# define PSR_DEFAULT_BITS psr.ac
#else
# define PSR_DEFAULT_BITS 0
arch/ia64/kvm/vmm_ivt.S
+1 -1
View File
@@ -64,7 +64,7 @@
#include "kvm_minstate.h"
#include "vti.h"
#if 1
#if 0
# define PSR_DEFAULT_BITS psr.ac
#else
# define PSR_DEFAULT_BITS 0