cache.S
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/* cache.S: cache management routines
*
* Copyright (C) 2004 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#include <asm/spr-regs.h>
#include <asm/cache.h>
.text
.p2align 4
###############################################################################
#
# Write back a range of dcache
# - void frv_dcache_writeback(unsigned long start [GR8], unsigned long size [GR9])
#
###############################################################################
.globl frv_dcache_writeback
.type frv_dcache_writeback,@function
frv_dcache_writeback:
andi gr8,~(L1_CACHE_BYTES-1),gr8
2: dcf @(gr8,gr0)
addi gr8,#L1_CACHE_BYTES,gr8
cmp gr9,gr8,icc0
bhi icc0,#2,2b
membar
bralr
.size frv_dcache_writeback, .-frv_dcache_writeback
##############################################################################
#
# Invalidate a range of dcache and icache
# - void frv_cache_invalidate(unsigned long start [GR8], unsigned long end [GR9]);
#
###############################################################################
.globl frv_cache_invalidate
.type frv_cache_invalidate,@function
frv_cache_invalidate:
andi gr8,~(L1_CACHE_BYTES-1),gr8
2: dci @(gr8,gr0)
ici @(gr8,gr0)
addi gr8,#L1_CACHE_BYTES,gr8
cmp gr9,gr8,icc0
bhi icc0,#2,2b
membar
bralr
.size frv_cache_invalidate, .-frv_cache_invalidate
##############################################################################
#
# Invalidate a range of icache
# - void frv_icache_invalidate(unsigned long start [GR8], unsigned long end [GR9]);
#
###############################################################################
.globl frv_icache_invalidate
.type frv_icache_invalidate,@function
frv_icache_invalidate:
andi gr8,~(L1_CACHE_BYTES-1),gr8
2: ici @(gr8,gr0)
addi gr8,#L1_CACHE_BYTES,gr8
cmp gr9,gr8,icc0
bhi icc0,#2,2b
membar
bralr
.size frv_icache_invalidate, .-frv_icache_invalidate
###############################################################################
#
# Write back and invalidate a range of dcache and icache
# - void frv_cache_wback_inv(unsigned long start [GR8], unsigned long end [GR9])
#
###############################################################################
.globl frv_cache_wback_inv
.type frv_cache_wback_inv,@function
frv_cache_wback_inv:
andi gr8,~(L1_CACHE_BYTES-1),gr8
2: dcf @(gr8,gr0)
ici @(gr8,gr0)
addi gr8,#L1_CACHE_BYTES,gr8
cmp gr9,gr8,icc0
bhi icc0,#2,2b
membar
bralr
.size frv_cache_wback_inv, .-frv_cache_wback_inv