lkml.org 
[lkml]   [2012]   [May]   [26]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[ 05/94] PARISC: fix PA1.1 oops on boot
3.3-stable review patch.  If anyone has any objections, please let me know.

------------------
From: James Bottomley <JBottomley@Parallels.com>

commit 5e185581d7c46ddd33cd9c01106d1fc86efb9376 upstream.

All PA1.1 systems have been oopsing on boot since

commit f311847c2fcebd81912e2f0caf8a461dec28db41
Author: James Bottomley <James.Bottomley@HansenPartnership.com>
Date: Wed Dec 22 10:22:11 2010 -0600

parisc: flush pages through tmpalias space

because a PA2.0 instruction was accidentally introduced into the PA1.1 TLB
insertion interruption path when it was consolidated with the do_alias macro.
Fix the do_alias macro only to use PA2.0 instructions if compiled for 64 bit.

Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
arch/parisc/kernel/entry.S | 4 ++++
1 file changed, 4 insertions(+)
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -581,7 +581,11 @@
*/
cmpiclr,= 0x01,\tmp,%r0
ldi (_PAGE_DIRTY|_PAGE_READ|_PAGE_WRITE),\prot
+#ifdef CONFIG_64BIT
depd,z \prot,8,7,\prot
+#else
+ depw,z \prot,8,7,\prot
+#endif
/*
* OK, it is in the temp alias region, check whether "from" or "to".
* Check "subtle" note in pacache.S re: r23/r26.



\
 
 \ /
  Last update: 2012-05-27 04:01    [from the cache]
©2003-2014 Jasper Spaans. Advertise on this site