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* kern/sparc64/cache.S: Fix grub_arch_sync_caches implementation.

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davem 2009-04-07 23:49:27 +00:00
parent c2cdde70b3
commit ea3f72cf0e
2 changed files with 13 additions and 14 deletions
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ChangeLog
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@ -3,6 +3,7 @@
* kern/sparc64/dl.c (grub_arch_dl_relocate_symbols): Add * kern/sparc64/dl.c (grub_arch_dl_relocate_symbols): Add
support for R_SPARC_OLO10 relocations. Fix compile warning for support for R_SPARC_OLO10 relocations. Fix compile warning for
R_SPARC_WDISP30 case. R_SPARC_WDISP30 case.
* kern/sparc64/cache.S: Fix grub_arch_sync_caches implementation.
2009-04-06 Pavel Roskin <proski@gnu.org> 2009-04-06 Pavel Roskin <proski@gnu.org>

26
kern/sparc64/cache.S
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@ -1,7 +1,7 @@
/* cache.S - Flush the processor cache for a specific region. */ /* cache.S - Flush the processor cache for a specific region. */
/* /*
* GRUB -- GRand Unified Bootloader * 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 * GRUB is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by * 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) * void grub_arch_sync_caches (void *address, grub_size_t len)
*/ */
FUNCTION(grub_arch_sync_caches) FUNCTION(grub_arch_sync_caches)
save %o6, -0xC, %o6 ! Get a new register window, brz,pn %o1, 2f
! reserve space on stack for add %o0, %o1, %o1
! %i0, %i1, %i2 add %o1, 7, %o1
brz,pn %i0, return ! Return if address == 0. andn %o1, 7, %o1
nop andn %o0, 7, %o0
brz,pn %i1, return ! Return if len == 0. sub %o1, %o0, %o1
clr %i2 ! index = 0. 1: subcc %o1, 8, %o1
loop: flush %i0 + %i2 ! Flush address + index. bne,pt %icc, 1b
cmp %i1, %i2 ! Compare len & index . flush %o0 + %o1
bpos,a,pt %xcc, loop ! If len > index, loop. 2: retl
add %i2, 8, %i2 ! Go to next doubleword. nop
return: ret ! Restore caller's register
restore ! window and return.