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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
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