1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
99 lines
2.8 KiB
ArmAsm
99 lines
2.8 KiB
ArmAsm
/* cache.S: cache managment 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
|