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/*
* mips32_cache.h
*
* Carsten Langgaard, carstenl@mips.com
* Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved.
*
* ########################################################################
*
* This program is free software; you can distribute it and/or modify it
* under the terms of the GNU General Public License (Version 2) as
* published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
*
* ########################################################################
*
* Inline assembly cache operations.
*
* This file is the original r4cache.c file with modification that makes the
* cache handling more generic.
*
* FIXME: Handle split L2 caches.
*
*/
#ifndef _MIPS_R4KCACHE_H
#define _MIPS_R4KCACHE_H
#include <asm/asm.h>
#include <asm/cacheops.h>
extern inline void flush_icache_line_indexed(unsigned long addr)
{
__asm__ __volatile__(
".set noreorder\n\t"
".set mips3\n\t"
"cache %1, (%0)\n\t"
".set mips0\n\t"
".set reorder"
:
: "r" (addr),
"i" (Index_Invalidate_I));
}
extern inline void flush_dcache_line_indexed(unsigned long addr)
{
__asm__ __volatile__(
".set noreorder\n\t"
".set mips3\n\t"
"cache %1, (%0)\n\t"
".set mips0\n\t"
".set reorder"
:
: "r" (addr),
"i" (Index_Writeback_Inv_D));
}
extern inline void flush_scache_line_indexed(unsigned long addr)
{
__asm__ __volatile__(
".set noreorder\n\t"
".set mips3\n\t"
"cache %1, (%0)\n\t"
".set mips0\n\t"
".set reorder"
:
: "r" (addr),
"i" (Index_Writeback_Inv_SD));
}
extern inline void flush_icache_line(unsigned long addr)
{
__asm__ __volatile__(
".set noreorder\n\t"
".set mips3\n\t"
"cache %1, (%0)\n\t"
".set mips0\n\t"
".set reorder"
:
: "r" (addr),
"i" (Hit_Invalidate_I));
}
extern inline void flush_dcache_line(unsigned long addr)
{
__asm__ __volatile__(
".set noreorder\n\t"
".set mips3\n\t"
"cache %1, (%0)\n\t"
".set mips0\n\t"
".set reorder"
:
: "r" (addr),
"i" (Hit_Writeback_Inv_D));
}
extern inline void invalidate_dcache_line(unsigned long addr)
{
__asm__ __volatile__(
".set noreorder\n\t"
".set mips3\n\t"
"cache %1, (%0)\n\t"
".set mips0\n\t"
".set reorder"
:
: "r" (addr),
"i" (Hit_Invalidate_D));
}
extern inline void invalidate_scache_line(unsigned long addr)
{
__asm__ __volatile__(
".set noreorder\n\t"
".set mips3\n\t"
"cache %1, (%0)\n\t"
".set mips0\n\t"
".set reorder"
:
: "r" (addr),
"i" (Hit_Invalidate_SD));
}
extern inline void flush_scache_line(unsigned long addr)
{
__asm__ __volatile__(
".set noreorder\n\t"
".set mips3\n\t"
"cache %1, (%0)\n\t"
".set mips0\n\t"
".set reorder"
:
: "r" (addr),
"i" (Hit_Writeback_Inv_SD));
}
/*
* The next two are for badland addresses like signal trampolines.
*/
extern inline void protected_flush_icache_line(unsigned long addr)
{
__asm__ __volatile__(
".set noreorder\n\t"
".set mips3\n"
"1:\tcache %1,(%0)\n"
"2:\t.set mips0\n\t"
".set reorder\n\t"
".section\t__ex_table,\"a\"\n\t"
STR(PTR)"\t1b,2b\n\t"
".previous"
:
: "r" (addr),
"i" (Hit_Invalidate_I));
}
extern inline void protected_writeback_dcache_line(unsigned long addr)
{
__asm__ __volatile__(
".set noreorder\n\t"
".set mips3\n"
"1:\tcache %1,(%0)\n"
"2:\t.set mips0\n\t"
".set reorder\n\t"
".section\t__ex_table,\"a\"\n\t"
STR(PTR)"\t1b,2b\n\t"
".previous"
:
: "r" (addr),
"i" (Hit_Writeback_D));
}
#define cache_unroll(base,op) \
__asm__ __volatile__(" \
.set noreorder; \
.set mips3; \
cache %1, (%0); \
.set mips0; \
.set reorder" \
: \
: "r" (base), \
"i" (op));
extern inline void blast_dcache(void)
{
unsigned long start = KSEG0;
unsigned long end = (start + dcache_size);
while(start < end) {
cache_unroll(start,Index_Writeback_Inv_D);
start += dc_lsize;
}
}
extern inline void blast_dcache_page(unsigned long page)
{
unsigned long start = page;
unsigned long end = (start + PAGE_SIZE);
while(start < end) {
cache_unroll(start,Hit_Writeback_Inv_D);
start += dc_lsize;
}
}
extern inline void blast_dcache_page_indexed(unsigned long page)
{
unsigned long start = page;
unsigned long end = (start + PAGE_SIZE);
while(start < end) {
cache_unroll(start,Index_Writeback_Inv_D);
start += dc_lsize;
}
}
extern inline void blast_icache(void)
{
unsigned long start = KSEG0;
unsigned long end = (start + icache_size);
while(start < end) {
cache_unroll(start,Index_Invalidate_I);
start += ic_lsize;
}
}
extern inline void blast_icache_page(unsigned long page)
{
unsigned long start = page;
unsigned long end = (start + PAGE_SIZE);
while(start < end) {
cache_unroll(start,Hit_Invalidate_I);
start += ic_lsize;
}
}
extern inline void blast_icache_page_indexed(unsigned long page)
{
unsigned long start = page;
unsigned long end = (start + PAGE_SIZE);
while(start < end) {
cache_unroll(start,Index_Invalidate_I);
start += ic_lsize;
}
}
extern inline void blast_scache(void)
{
unsigned long start = KSEG0;
unsigned long end = KSEG0 + scache_size;
while(start < end) {
cache_unroll(start,Index_Writeback_Inv_SD);
start += sc_lsize;
}
}
extern inline void blast_scache_page(unsigned long page)
{
unsigned long start = page;
unsigned long end = page + PAGE_SIZE;
while(start < end) {
cache_unroll(start,Hit_Writeback_Inv_SD);
start += sc_lsize;
}
}
extern inline void blast_scache_page_indexed(unsigned long page)
{
unsigned long start = page;
unsigned long end = page + PAGE_SIZE;
while(start < end) {
cache_unroll(start,Index_Writeback_Inv_SD);
start += sc_lsize;
}
}
#endif /* !(_MIPS_R4KCACHE_H) */
|
