/* $NetBSD: cacheops_60.h,v 1.15 2023/12/27 17:35:35 thorpej Exp $ */

/* $NetBSD: cacheops_60.h,v 1.15 2023/12/27 17:35:35 thorpej Exp $ */

/*-
* Copyright (c) 1997 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Leo Weppelman
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/

#include <machine/fcode.h>

/*
* Invalidate entire TLB.
*/
static __inline void __attribute__((__unused__))
TBIA_60(void)
{
__asm volatile (" .word 0xf518" ); /* pflusha */
}

/*
* Invalidate any TLB entry for given VA (TB Invalidate Single)
*/
static __inline void __attribute__((__unused__))
TBIS_60(vaddr_t va)
{
register uint8_t *r_va __asm("%a0") = (void *)va;
int tmp;

__asm volatile (" movc %1, %%dfc;" /* select supervisor */
" .word 0xf508;" /* pflush %a0@ */
" moveq %3, %1;" /* select user */
" movc %1, %%dfc;"
" .word 0xf508;" /* pflush %a0@ */
" movc %%cacr,%1;"
" orl %4,%1;"
" movc %1,%%cacr" : "=d" (tmp) :
"0" (FC_SUPERD), "a" (r_va), "i" (FC_USERD),
"i" (IC60_CABC));
}

/*
* Invalidate supervisor side of TLB
*/
static __inline void __attribute__((__unused__))
TBIAS_60(void)
{
int tmp;

/*
* Cannot specify supervisor/user on pflusha, so we flush all
*/
__asm volatile (" .word 0xf518;"
" movc %%cacr,%0;"
" orl %1,%0;"
" movc %0,%%cacr" /* clear all branch cache
entries */
: "=d" (tmp) : "i" (IC60_CABC) );
}

/*
* Invalidate user side of TLB
*/
static __inline void __attribute__((__unused__))
TBIAU_60(void)
{
int tmp;

/*
* Cannot specify supervisor/user on pflusha, so we flush all
*/
__asm volatile (" .word 0xf518;"
" movc %%cacr,%0;"
" orl %1,%0;"
" movc %0,%%cacr" /* clear all branch cache
entries */
: "=d" (tmp) : "i" (IC60_CUBC) );
}

/*
* Invalidate instruction cache
*/
static __inline void __attribute__((__unused__))
ICIA_60(void)
{
/* inva ic (also clears branch cache) */
__asm volatile (" .word 0xf498;");
}

static __inline void __attribute__((__unused__))
ICPA_60(void)
{
/* inva ic (also clears branch cache) */
__asm volatile (" .word 0xf498;");
}

/*
* Invalidate data cache.
*/
static __inline void __attribute__((__unused__))
DCIA_60(void)
{
__asm volatile (" .word 0xf478;"); /* cpusha dc */
}

static __inline void __attribute__((__unused__))
DCIS_60(void)
{
__asm volatile (" .word 0xf478;"); /* cpusha dc */
}

static __inline void __attribute__((__unused__))
DCIU_60(void)
{
__asm volatile (" .word 0xf478;"); /* cpusha dc */
}

static __inline void __attribute__((__unused__))
DCIAS_60(paddr_t pa)
{
register uint8_t *r_pa __asm("%a0") = (void *)pa;

__asm volatile (" .word 0xf468;" : : "a" (r_pa)); /* cpushl dc,%a0@ */
}

static __inline void __attribute__((__unused__))
PCIA_60(void)
{
__asm volatile (" .word 0xf478;"); /* cpusha dc */
}

#define DCFA_60() DCFA_40()
#define DCPA_60() DCPA_40()
#define ICPL_60(pa) ICPL_40(pa)
#define ICPP_60(pa) ICPP_40(pa)
#define DCPL_60(pa) DCPL_40(pa)
#define DCPP_60(pa) DCPP_40(pa)
#define DCFL_60(pa) DCFL_40(pa)
#define DCFP_60(pa) DCFP_40(pa)