Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=c034637967881830979b5415e55578e42f806659
Commit: c034637967881830979b5415e55578e42f806659
Parent: eaf6c766446c0faa326b339900f975e6f1f62b01
Author: Russ Anderson <[EMAIL PROTECTED]>
AuthorDate: Thu Jun 14 16:01:24 2007 -0500
Committer: Tony Luck <[EMAIL PROTECTED]>
CommitDate: Tue Jun 26 13:34:16 2007 -0700
[IA64] Force error to surface in nofault code
Montecito behaves slightly differently than previous processors,
resulting in the MCA due to a failed PIO read to sometimes surfacing
outside the nofault code. Adding an additional or and stop bits
ensures the MCA surfaces in the nofault code.
Signed-off-by: Russ Anderson <[EMAIL PROTECTED]>
Signed-off-by: Tony Luck <[EMAIL PROTECTED]>
---
arch/ia64/sn/kernel/xp_nofault.S | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/arch/ia64/sn/kernel/xp_nofault.S b/arch/ia64/sn/kernel/xp_nofault.S
index b772543..54e8973 100644
--- a/arch/ia64/sn/kernel/xp_nofault.S
+++ b/arch/ia64/sn/kernel/xp_nofault.S
@@ -21,7 +21,8 @@
xp_nofault_PIOR:
mov r8=r0 // Stage a success return value
ld8.acq r9=[r32];; // PIO Read the specified register
- adds r9=1,r9 // Add to force a consume
+ adds r9=1,r9;; // Add to force consumption
+ or r9=r9,r9;; // Or to force consumption
br.ret.sptk.many b0;; // Return success
.global xp_error_PIOR
-
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