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[2072] * kern/sparc64/cache.S: Fix grub_arch_sync_caches implementation.
From: |
David S. Miller |
Subject: |
[2072] * kern/sparc64/cache.S: Fix grub_arch_sync_caches implementation. |
Date: |
Tue, 07 Apr 2009 23:49:27 +0000 |
Revision: 2072
http://svn.sv.gnu.org/viewvc/?view=rev&root=grub&revision=2072
Author: davem
Date: 2009-04-07 23:49:27 +0000 (Tue, 07 Apr 2009)
Log Message:
-----------
* kern/sparc64/cache.S: Fix grub_arch_sync_caches implementation.
Modified Paths:
--------------
trunk/grub2/ChangeLog
trunk/grub2/kern/sparc64/cache.S
Modified: trunk/grub2/ChangeLog
===================================================================
--- trunk/grub2/ChangeLog 2009-04-07 23:48:28 UTC (rev 2071)
+++ trunk/grub2/ChangeLog 2009-04-07 23:49:27 UTC (rev 2072)
@@ -3,6 +3,7 @@
* kern/sparc64/dl.c (grub_arch_dl_relocate_symbols): Add
support for R_SPARC_OLO10 relocations. Fix compile warning for
R_SPARC_WDISP30 case.
+ * kern/sparc64/cache.S: Fix grub_arch_sync_caches implementation.
2009-04-06 Pavel Roskin <address@hidden>
Modified: trunk/grub2/kern/sparc64/cache.S
===================================================================
--- trunk/grub2/kern/sparc64/cache.S 2009-04-07 23:48:28 UTC (rev 2071)
+++ trunk/grub2/kern/sparc64/cache.S 2009-04-07 23:49:27 UTC (rev 2072)
@@ -1,7 +1,7 @@
/* cache.S - Flush the processor cache for a specific region. */
/*
* GRUB -- GRand Unified Bootloader
- * Copyright (C) 2005,2007 Free Software Foundation, Inc.
+ * Copyright (C) 2005,2007,2009 Free Software Foundation, Inc.
*
* GRUB is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@@ -27,17 +27,15 @@
* void grub_arch_sync_caches (void *address, grub_size_t len)
*/
FUNCTION(grub_arch_sync_caches)
- save %o6, -0xC, %o6 ! Get a new register window,
- ! reserve space on stack for
- ! %i0, %i1, %i2
- brz,pn %i0, return ! Return if address == 0.
- nop
- brz,pn %i1, return ! Return if len == 0.
- clr %i2 ! index = 0.
-loop: flush %i0 + %i2 ! Flush address + index.
- cmp %i1, %i2 ! Compare len & index .
- bpos,a,pt %xcc, loop ! If len > index, loop.
- add %i2, 8, %i2 ! Go to next doubleword.
-return: ret ! Restore caller's register
- restore ! window and return.
+ brz,pn %o1, 2f
+ add %o0, %o1, %o1
+ add %o1, 7, %o1
+ andn %o1, 7, %o1
+ andn %o0, 7, %o0
+ sub %o1, %o0, %o1
+1: subcc %o1, 8, %o1
+ bne,pt %icc, 1b
+ flush %o0 + %o1
+2: retl
+ nop
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