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lxdream.org :: lxdream/src/sh4/sh4mem.c
lxdream 0.9.1
released Jun 29
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filename src/sh4/sh4mem.c
changeset 569:a1c49e1e8776
prev562:e598411b640b
next570:d2893980fbf5
author nkeynes
date Fri Jan 04 11:54:17 2008 +0000 (12 years ago)
branchlxdream-mmu
permissions -rw-r--r--
last change Bring icache partially into line with the mmu, a little less slow with AT off
now.
file annotate diff log raw
nkeynes@10
     1
/**
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 * $Id$
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 * sh4mem.c is responsible for the SH4's access to memory (including memory
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 * mapped I/O), using the page maps created in mem.c
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 *
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 * Copyright (c) 2005 Nathan Keynes.
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 *
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 * This program is free software; you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation; either version 2 of the License, or
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 * (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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    17
 */
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#define MODULE sh4_module
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#include <string.h>
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#include <zlib.h>
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#include "dream.h"
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#include "mem.h"
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#include "mmio.h"
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#include "dreamcast.h"
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#include "sh4/sh4core.h"
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#include "sh4/sh4mmio.h"
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#include "sh4/xltcache.h"
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#include "pvr2/pvr2.h"
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#include "asic.h"
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    32
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#define OC_BASE 0x1C000000
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#define OC_TOP  0x20000000
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#define TRANSLATE_VIDEO_64BIT_ADDRESS(a)  ( (((a)&0x00FFFFF8)>>1)|(((a)&0x00000004)<<20)|((a)&0x03)|0x05000000 )
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    37
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#ifdef ENABLE_WATCH
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#define CHECK_READ_WATCH( addr, size ) \
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    if( mem_is_watched(addr,size,WATCH_READ) != NULL ) { \
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        WARN( "Watch triggered at %08X by %d byte read", addr, size ); \
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        dreamcast_stop(); \
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    43
    }
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#define CHECK_WRITE_WATCH( addr, size, val )                  \
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    if( mem_is_watched(addr,size,WATCH_WRITE) != NULL ) { \
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        WARN( "Watch triggered at %08X by %d byte write <= %0*X", addr, size, size*2, val ); \
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        dreamcast_stop(); \
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    48
    }
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#else
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#define CHECK_READ_WATCH( addr, size )
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#define CHECK_WRITE_WATCH( addr, size, val )
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#endif
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#ifdef ENABLE_TRACE_IO
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#define TRACE_IO( str, p, r, ... ) if(io_rgn[(uint32_t)p]->trace_flag && !MMIO_NOTRACE_BYNUM((uint32_t)p,r)) \
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    TRACE( str " [%s.%s: %s]", __VA_ARGS__,			       \
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    MMIO_NAME_BYNUM((uint32_t)p), MMIO_REGID_BYNUM((uint32_t)p, r), \
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    MMIO_REGDESC_BYNUM((uint32_t)p, r) )
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#define TRACE_P4IO( str, io, r, ... ) if(io->trace_flag && !MMIO_NOTRACE_IOBYNUM(io,r)) \
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TRACE( str " [%s.%s: %s]", __VA_ARGS__, \
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    io->id, MMIO_REGID_IOBYNUM(io, r), \
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    MMIO_REGDESC_IOBYNUM(io, r) )
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#else
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#define TRACE_IO( str, p, r, ... )
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#define TRACE_P4IO( str, io, r, ... )
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#endif
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extern struct mem_region mem_rgn[];
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extern struct mmio_region *P4_io[];
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int32_t sh4_read_p4( sh4addr_t addr )
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{
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    struct mmio_region *io = P4_io[(addr&0x1FFFFFFF)>>19];
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    if( !io ) {
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	switch( addr & 0x1F000000 ) {
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	case 0x00000000: case 0x01000000: case 0x02000000: case 0x03000000: 
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	    /* Store queue - readable? */
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	    return 0;
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	    break;
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	case 0x10000000: return mmu_icache_addr_read( addr );
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	case 0x11000000: return mmu_icache_data_read( addr );
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	case 0x12000000: return mmu_itlb_addr_read( addr );
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	case 0x13000000: return mmu_itlb_data_read( addr );
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	case 0x14000000: return mmu_ocache_addr_read( addr );
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	case 0x15000000: return mmu_ocache_data_read( addr );
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	case 0x16000000: return mmu_utlb_addr_read( addr );
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	case 0x17000000: return mmu_utlb_data_read( addr );
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	default:
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            WARN( "Attempted read from unknown or invalid P4 region: %08X", addr );
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	    return 0;
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        }
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    } else {
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	int32_t val = io->io_read( addr&0xFFF );
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	TRACE_P4IO( "Long read %08X <= %08X", io, (addr&0xFFF), val, addr );
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        return val;
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    }    
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}
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void sh4_write_p4( sh4addr_t addr, int32_t val )
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{
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    struct mmio_region *io = P4_io[(addr&0x1FFFFFFF)>>19];
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    if( !io ) {
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	switch( addr & 0x1F000000 ) {
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	case 0x00000000: case 0x01000000: case 0x02000000: case 0x03000000: 
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            /* Store queue */
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            SH4_WRITE_STORE_QUEUE( addr, val );
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	    break;
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	case 0x10000000: mmu_icache_addr_write( addr, val ); break;
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	case 0x11000000: mmu_icache_data_write( addr, val ); break;
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	case 0x12000000: mmu_itlb_addr_write( addr, val ); break;
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	case 0x13000000: mmu_itlb_data_write( addr, val ); break;
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	case 0x14000000: mmu_ocache_addr_write( addr, val ); break;
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	case 0x15000000: mmu_ocache_data_write( addr, val ); break;
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	case 0x16000000: mmu_utlb_addr_write( addr, val ); break;
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	case 0x17000000: mmu_utlb_data_write( addr, val ); break;
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	default:
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            WARN( "Attempted write to unknown P4 region: %08X", addr );
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        }
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    } else {
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	TRACE_P4IO( "Long write %08X => %08X", io, (addr&0xFFF), val, addr );
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        io->io_write( addr&0xFFF, val );
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    }
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}
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int32_t sh4_read_phys_word( sh4addr_t addr )
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{
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    sh4ptr_t page;
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    if( addr >= 0xE0000000 ) /* P4 Area, handled specially */
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        return SIGNEXT16(sh4_read_p4( addr ));
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    if( (addr&0x1F800000) == 0x04000000 ) {
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        addr = TRANSLATE_VIDEO_64BIT_ADDRESS(addr);
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    }
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    page = page_map[ (addr & 0x1FFFFFFF) >> 12 ];
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    if( ((uintptr_t)page) < MAX_IO_REGIONS ) { /* IO Region */
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        if( page == NULL ) {
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            WARN( "Attempted word read to missing page: %08X",
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                   addr );
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            return 0;
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        }
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        return SIGNEXT16(io_rgn[(uintptr_t)page]->io_read(addr&0xFFF));
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    } else {
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        return SIGNEXT16(*(int16_t *)(page+(addr&0xFFF)));
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    }
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}
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/**
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 * Convenience function to read a quad-word (implemented as two long reads).
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 */
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int64_t sh4_read_quad( sh4addr_t addr )
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{
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    return ((int64_t)((uint32_t)sh4_read_long(addr))) |
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	(((int64_t)((uint32_t)sh4_read_long(addr+4))) << 32);
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}
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int64_t sh4_read_long( sh4addr_t vma )
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{
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    sh4ptr_t page;
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    CHECK_READ_WATCH(addr,4);
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    uint64_t ppa = mmu_vma_to_phys_read(vma);
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    if( ppa>>32 ) {
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	return ppa;
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    }
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    sh4addr_t addr = (sh4addr_t)ppa;
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    if( addr >= 0xE0000000 ) { /* P4 Area, handled specially */
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        return ZEROEXT32(sh4_read_p4( addr ));
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    } else if( (addr&0x1C000000) == 0x0C000000 ) {
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	return ZEROEXT32(*(int32_t *)(sh4_main_ram + (addr&0x00FFFFFF)));
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    } else if( (addr&0x1F800000) == 0x04000000 ) {
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        addr = TRANSLATE_VIDEO_64BIT_ADDRESS(addr);
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	pvr2_render_buffer_invalidate(addr, FALSE);
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    } else if( (addr&0x1F800000) == 0x05000000 ) {
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	pvr2_render_buffer_invalidate(addr, FALSE);
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    }
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    page = page_map[ (addr & 0x1FFFFFFF) >> 12 ];
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    if( ((uintptr_t)page) < MAX_IO_REGIONS ) { /* IO Region */
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        int32_t val;
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        if( page == NULL ) {
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            WARN( "Attempted long read to missing page: %08X", addr );
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            return 0;
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        }
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        val = io_rgn[(uintptr_t)page]->io_read(addr&0xFFF);
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        TRACE_IO( "Long read %08X <= %08X", page, (addr&0xFFF), val, addr );
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        return ZEROEXT32(val);
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    } else {
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        return ZEROEXT32(*(int32_t *)(page+(addr&0xFFF)));
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    }
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}
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int64_t sh4_read_word( sh4addr_t vma )
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{
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    sh4ptr_t page;
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    CHECK_READ_WATCH(addr,2);
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    uint64_t ppa = mmu_vma_to_phys_read(vma);
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    if( ppa>>32 ) {
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	return ppa;
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    }
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    sh4addr_t addr = (sh4addr_t)ppa;
nkeynes@559
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nkeynes@418
   207
    if( addr >= 0xE0000000 ) { /* P4 Area, handled specially */
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        return ZEROEXT32(SIGNEXT16(sh4_read_p4( addr )));
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    } else if( (addr&0x1C000000) == 0x0C000000 ) {
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	return ZEROEXT32(SIGNEXT16(*(int16_t *)(sh4_main_ram + (addr&0x00FFFFFF))));
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    } else if( (addr&0x1F800000) == 0x04000000 ) {
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        addr = TRANSLATE_VIDEO_64BIT_ADDRESS(addr);
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	pvr2_render_buffer_invalidate(addr, FALSE);
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    } else if( (addr&0x1F800000) == 0x05000000 ) {
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	pvr2_render_buffer_invalidate(addr, FALSE);
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   216
    }
nkeynes@217
   217
    
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    page = page_map[ (addr & 0x1FFFFFFF) >> 12 ];
nkeynes@504
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    if( ((uintptr_t)page) < MAX_IO_REGIONS ) { /* IO Region */
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   220
        int32_t val;
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   221
        if( page == NULL ) {
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   222
	    WARN( "Attempted word read to missing page: %08X", addr );
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   223
            return 0;
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   224
        }
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        val = SIGNEXT16(io_rgn[(uintptr_t)page]->io_read(addr&0xFFF));
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        TRACE_IO( "Word read %04X <= %08X", page, (addr&0xFFF), val&0xFFFF, addr );
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        return ZEROEXT32(val);
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   228
    } else {
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   229
        return ZEROEXT32(SIGNEXT16(*(int16_t *)(page+(addr&0xFFF))));
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   230
    }
nkeynes@10
   231
}
nkeynes@10
   232
nkeynes@559
   233
int64_t sh4_read_byte( sh4addr_t vma )
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   234
{
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   235
    sh4ptr_t page;
nkeynes@10
   236
nkeynes@10
   237
    CHECK_READ_WATCH(addr,1);
nkeynes@10
   238
nkeynes@559
   239
    uint64_t ppa = mmu_vma_to_phys_read(vma);
nkeynes@559
   240
    if( ppa>>32 ) {
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   241
	return ppa;
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   242
    }
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   243
    sh4addr_t addr = (sh4addr_t)ppa;
nkeynes@559
   244
nkeynes@418
   245
    if( addr >= 0xE0000000 ) { /* P4 Area, handled specially */
nkeynes@559
   246
        return ZEROEXT32(SIGNEXT8(sh4_read_p4( addr )));
nkeynes@418
   247
    } else if( (addr&0x1C000000) == 0x0C000000 ) {
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   248
	return ZEROEXT32(SIGNEXT8(*(int8_t *)(sh4_main_ram + (addr&0x00FFFFFF))));
nkeynes@418
   249
    } else if( (addr&0x1F800000) == 0x04000000 ) {
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   250
        addr = TRANSLATE_VIDEO_64BIT_ADDRESS(addr);
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   251
    	pvr2_render_buffer_invalidate(addr, FALSE);
nkeynes@217
   252
    } else if( (addr&0x1F800000) == 0x05000000 ) {
nkeynes@355
   253
	pvr2_render_buffer_invalidate(addr, FALSE);
nkeynes@10
   254
    }
nkeynes@217
   255
nkeynes@10
   256
    
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   257
    page = page_map[ (addr & 0x1FFFFFFF) >> 12 ];
nkeynes@504
   258
    if( ((uintptr_t)page) < MAX_IO_REGIONS ) { /* IO Region */
nkeynes@10
   259
        int32_t val;
nkeynes@10
   260
        if( page == NULL ) {
nkeynes@448
   261
            WARN( "Attempted byte read to missing page: %08X", addr );
nkeynes@10
   262
            return 0;
nkeynes@10
   263
        }
nkeynes@504
   264
        val = SIGNEXT8(io_rgn[(uintptr_t)page]->io_read(addr&0xFFF));
nkeynes@10
   265
        TRACE_IO( "Byte read %02X <= %08X", page, (addr&0xFFF), val&0xFF, addr );
nkeynes@559
   266
        return ZEROEXT32(val);
nkeynes@10
   267
    } else {
nkeynes@559
   268
        return ZEROEXT32(SIGNEXT8(*(int8_t *)(page+(addr&0xFFF))));
nkeynes@10
   269
    }
nkeynes@10
   270
}
nkeynes@10
   271
nkeynes@527
   272
/**
nkeynes@527
   273
 * Convenience function to write a quad-word (implemented as two long writes).
nkeynes@527
   274
 */
nkeynes@527
   275
void sh4_write_quad( sh4addr_t addr, uint64_t val )
nkeynes@527
   276
{
nkeynes@527
   277
    sh4_write_long( addr, (uint32_t)val );
nkeynes@527
   278
    sh4_write_long( addr+4, (uint32_t)(val>>32) );
nkeynes@527
   279
}
nkeynes@527
   280
nkeynes@559
   281
int32_t sh4_write_long( sh4addr_t vma, uint32_t val )
nkeynes@10
   282
{
nkeynes@502
   283
    sh4ptr_t page;
nkeynes@400
   284
nkeynes@559
   285
    uint64_t ppa = mmu_vma_to_phys_write(vma);
nkeynes@559
   286
    if( ppa>>32 ) {
nkeynes@559
   287
	return ppa>>32;
nkeynes@559
   288
    }
nkeynes@559
   289
    sh4addr_t addr = (sh4addr_t)ppa;
nkeynes@559
   290
nkeynes@10
   291
    CHECK_WRITE_WATCH(addr,4,val);
nkeynes@10
   292
nkeynes@83
   293
    if( addr >= 0xE0000000 ) {
nkeynes@10
   294
        sh4_write_p4( addr, val );
nkeynes@559
   295
        return 0;
nkeynes@418
   296
    } else if( (addr&0x1C000000) == 0x0C000000 ) {
nkeynes@418
   297
	*(uint32_t *)(sh4_main_ram + (addr&0x00FFFFFF)) = val;
nkeynes@419
   298
	xlat_invalidate_long(addr);
nkeynes@559
   299
	return 0;
nkeynes@418
   300
    } else if( (addr&0x1F800000) == 0x04000000 || 
nkeynes@418
   301
	       (addr&0x1F800000) == 0x11000000 ) {
nkeynes@150
   302
	texcache_invalidate_page(addr& 0x7FFFFF);
nkeynes@10
   303
        addr = TRANSLATE_VIDEO_64BIT_ADDRESS(addr);
nkeynes@355
   304
	pvr2_render_buffer_invalidate(addr, TRUE);
nkeynes@165
   305
    } else if( (addr&0x1F800000) == 0x05000000 ) {
nkeynes@355
   306
	pvr2_render_buffer_invalidate(addr, TRUE);
nkeynes@10
   307
    }
nkeynes@10
   308
nkeynes@10
   309
    if( (addr&0x1FFFFFFF) < 0x200000 ) {
nkeynes@448
   310
        WARN( "Attempted write to read-only memory: %08X => %08X", val, addr);
nkeynes@10
   311
        sh4_stop();
nkeynes@559
   312
        return 0;
nkeynes@10
   313
    }
nkeynes@137
   314
    if( (addr&0x1F800000) == 0x00800000 )
nkeynes@137
   315
	asic_g2_write_word();
nkeynes@137
   316
nkeynes@10
   317
    page = page_map[ (addr & 0x1FFFFFFF) >> 12 ];
nkeynes@504
   318
    if( ((uintptr_t)page) < MAX_IO_REGIONS ) { /* IO Region */
nkeynes@10
   319
        if( page == NULL ) {
nkeynes@137
   320
	    if( (addr & 0x1F000000) >= 0x04000000 &&
nkeynes@137
   321
		(addr & 0x1F000000) < 0x07000000 )
nkeynes@559
   322
		return 0;
nkeynes@448
   323
            WARN( "Long write to missing page: %08X => %08X", val, addr );
nkeynes@559
   324
            return 0;
nkeynes@10
   325
        }
nkeynes@10
   326
        TRACE_IO( "Long write %08X => %08X", page, (addr&0xFFF), val, addr );
nkeynes@504
   327
        io_rgn[(uintptr_t)page]->io_write(addr&0xFFF, val);
nkeynes@10
   328
    } else {
nkeynes@10
   329
        *(uint32_t *)(page+(addr&0xFFF)) = val;
nkeynes@10
   330
    }
nkeynes@559
   331
    return 0;
nkeynes@10
   332
}
nkeynes@10
   333
nkeynes@559
   334
int32_t sh4_write_word( sh4addr_t vma, uint32_t val )
nkeynes@10
   335
{
nkeynes@502
   336
    sh4ptr_t page;
nkeynes@10
   337
nkeynes@559
   338
    uint64_t ppa = mmu_vma_to_phys_write(vma);
nkeynes@559
   339
    if( ppa>>32 ) {
nkeynes@559
   340
	return ppa>>32;
nkeynes@559
   341
    }
nkeynes@559
   342
    sh4addr_t addr = (sh4addr_t)ppa;
nkeynes@559
   343
nkeynes@10
   344
    CHECK_WRITE_WATCH(addr,2,val);
nkeynes@10
   345
nkeynes@83
   346
    if( addr >= 0xE0000000 ) {
nkeynes@10
   347
        sh4_write_p4( addr, (int16_t)val );
nkeynes@559
   348
        return 0;
nkeynes@418
   349
    } else if( (addr&0x1C000000) == 0x0C000000 ) {
nkeynes@418
   350
	*(uint16_t *)(sh4_main_ram + (addr&0x00FFFFFF)) = val;
nkeynes@419
   351
	xlat_invalidate_word(addr);
nkeynes@559
   352
	return 0;
nkeynes@418
   353
    } else if( (addr&0x1F800000) == 0x04000000 ||
nkeynes@130
   354
	(addr&0x1F800000) == 0x11000000 ) {
nkeynes@150
   355
	texcache_invalidate_page(addr& 0x7FFFFF);
nkeynes@10
   356
        addr = TRANSLATE_VIDEO_64BIT_ADDRESS(addr);
nkeynes@355
   357
	pvr2_render_buffer_invalidate(addr, TRUE);
nkeynes@165
   358
    } else if( (addr&0x1F800000) == 0x05000000 ) {
nkeynes@355
   359
	pvr2_render_buffer_invalidate(addr, TRUE);
nkeynes@10
   360
    }
nkeynes@406
   361
nkeynes@400
   362
    if( (addr&0x1FFFFFFF) < 0x200000 ) {
nkeynes@448
   363
        WARN( "Attempted write to read-only memory: %08X => %08X", val, addr);
nkeynes@400
   364
        sh4_stop();
nkeynes@559
   365
        return 0;
nkeynes@400
   366
    }
nkeynes@10
   367
    page = page_map[ (addr & 0x1FFFFFFF) >> 12 ];
nkeynes@504
   368
    if( ((uintptr_t)page) < MAX_IO_REGIONS ) { /* IO Region */
nkeynes@10
   369
        if( page == NULL ) {
nkeynes@448
   370
            WARN( "Attempted word write to missing page: %08X", addr );
nkeynes@559
   371
            return 0;
nkeynes@10
   372
        }
nkeynes@10
   373
        TRACE_IO( "Word write %04X => %08X", page, (addr&0xFFF), val&0xFFFF, addr );
nkeynes@504
   374
        io_rgn[(uintptr_t)page]->io_write(addr&0xFFF, val);
nkeynes@10
   375
    } else {
nkeynes@10
   376
        *(uint16_t *)(page+(addr&0xFFF)) = val;
nkeynes@10
   377
    }
nkeynes@559
   378
    return 0;
nkeynes@10
   379
}
nkeynes@10
   380
nkeynes@559
   381
int32_t sh4_write_byte( sh4addr_t vma, uint32_t val )
nkeynes@10
   382
{
nkeynes@502
   383
    sh4ptr_t page;
nkeynes@559
   384
nkeynes@559
   385
    uint64_t ppa = mmu_vma_to_phys_write(vma);
nkeynes@559
   386
    if( ppa>>32 ) {
nkeynes@559
   387
	return ppa>>32;
nkeynes@559
   388
    }
nkeynes@559
   389
    sh4addr_t addr = (sh4addr_t)ppa;
nkeynes@10
   390
    
nkeynes@10
   391
    CHECK_WRITE_WATCH(addr,1,val);
nkeynes@10
   392
nkeynes@83
   393
    if( addr >= 0xE0000000 ) {
nkeynes@10
   394
        sh4_write_p4( addr, (int8_t)val );
nkeynes@559
   395
        return 0;
nkeynes@418
   396
    } else if( (addr&0x1C000000) == 0x0C000000 ) {
nkeynes@418
   397
	*(uint8_t *)(sh4_main_ram + (addr&0x00FFFFFF)) = val;
nkeynes@419
   398
	xlat_invalidate_word(addr);
nkeynes@559
   399
	return 0;
nkeynes@418
   400
    } else if( (addr&0x1F800000) == 0x04000000 ||
nkeynes@418
   401
	       (addr&0x1F800000) == 0x11000000 ) {
nkeynes@150
   402
	texcache_invalidate_page(addr& 0x7FFFFF);
nkeynes@10
   403
        addr = TRANSLATE_VIDEO_64BIT_ADDRESS(addr);
nkeynes@355
   404
	pvr2_render_buffer_invalidate(addr, TRUE);
nkeynes@165
   405
    } else if( (addr&0x1F800000) == 0x05000000 ) {
nkeynes@355
   406
	pvr2_render_buffer_invalidate(addr, TRUE);
nkeynes@10
   407
    }
nkeynes@10
   408
    
nkeynes@400
   409
    if( (addr&0x1FFFFFFF) < 0x200000 ) {
nkeynes@448
   410
        WARN( "Attempted write to read-only memory: %08X => %08X", val, addr);
nkeynes@400
   411
        sh4_stop();
nkeynes@559
   412
        return 0;
nkeynes@400
   413
    }
nkeynes@10
   414
    page = page_map[ (addr & 0x1FFFFFFF) >> 12 ];
nkeynes@504
   415
    if( ((uintptr_t)page) < MAX_IO_REGIONS ) { /* IO Region */
nkeynes@10
   416
        if( page == NULL ) {
nkeynes@448
   417
            WARN( "Attempted byte write to missing page: %08X", addr );
nkeynes@559
   418
            return 0;
nkeynes@10
   419
        }
nkeynes@10
   420
        TRACE_IO( "Byte write %02X => %08X", page, (addr&0xFFF), val&0xFF, addr );
nkeynes@504
   421
        io_rgn[(uintptr_t)page]->io_write( (addr&0xFFF), val);
nkeynes@10
   422
    } else {
nkeynes@10
   423
        *(uint8_t *)(page+(addr&0xFFF)) = val;
nkeynes@10
   424
    }
nkeynes@559
   425
    return 0;
nkeynes@10
   426
}
nkeynes@10
   427
nkeynes@10
   428
nkeynes@10
   429
nkeynes@10
   430
/* FIXME: Handle all the many special cases when the range doesn't fall cleanly
nkeynes@400
   431
 * into the same memory block
nkeynes@10
   432
 */
nkeynes@527
   433
void mem_copy_from_sh4( sh4ptr_t dest, sh4addr_t srcaddr, size_t count ) {
nkeynes@103
   434
    if( srcaddr >= 0x04000000 && srcaddr < 0x05000000 ) {
nkeynes@103
   435
	pvr2_vram64_read( dest, srcaddr, count );
nkeynes@103
   436
    } else {
nkeynes@502
   437
	sh4ptr_t src = mem_get_region(srcaddr);
nkeynes@103
   438
	if( src == NULL ) {
nkeynes@448
   439
	    WARN( "Attempted block read from unknown address %08X", srcaddr );
nkeynes@103
   440
	} else {
nkeynes@103
   441
	    memcpy( dest, src, count );
nkeynes@103
   442
	}
nkeynes@103
   443
    }
nkeynes@10
   444
}
nkeynes@10
   445
nkeynes@527
   446
void mem_copy_to_sh4( sh4addr_t destaddr, sh4ptr_t src, size_t count ) {
nkeynes@325
   447
    if( destaddr >= 0x10000000 && destaddr < 0x14000000 ) {
nkeynes@325
   448
	pvr2_dma_write( destaddr, src, count );
nkeynes@325
   449
	return;
nkeynes@325
   450
    } else if( (destaddr & 0x1F800000) == 0x05000000 ) {
nkeynes@355
   451
	pvr2_render_buffer_invalidate( destaddr, TRUE );
nkeynes@325
   452
    } else if( (destaddr & 0x1F800000) == 0x04000000 ) {
nkeynes@103
   453
	pvr2_vram64_write( destaddr, src, count );
nkeynes@325
   454
	return;
nkeynes@325
   455
    }
nkeynes@502
   456
    sh4ptr_t dest = mem_get_region(destaddr);
nkeynes@325
   457
    if( dest == NULL )
nkeynes@448
   458
	WARN( "Attempted block write to unknown address %08X", destaddr );
nkeynes@325
   459
    else {
nkeynes@400
   460
	xlat_invalidate_block( destaddr, count );
nkeynes@325
   461
	memcpy( dest, src, count );
nkeynes@90
   462
    }
nkeynes@10
   463
}
nkeynes@369
   464
nkeynes@527
   465
void sh4_flush_store_queue( sh4addr_t addr )
nkeynes@369
   466
{
nkeynes@369
   467
    /* Store queue operation */
nkeynes@369
   468
    int queue = (addr&0x20)>>2;
nkeynes@502
   469
    sh4ptr_t src = (sh4ptr_t)&sh4r.store_queue[queue];
nkeynes@369
   470
    uint32_t hi = (MMIO_READ( MMU, (queue == 0 ? QACR0 : QACR1) ) & 0x1C) << 24;
nkeynes@422
   471
    uint32_t target = (addr&0x03FFFFE0) | hi;
nkeynes@369
   472
    mem_copy_to_sh4( target, src, 32 );
nkeynes@369
   473
}
nkeynes@559
   474
nkeynes@559
   475
sh4ptr_t sh4_get_region_by_vma( sh4addr_t vma )
nkeynes@559
   476
{
nkeynes@559
   477
    uint64_t ppa = mmu_vma_to_phys_read(vma);
nkeynes@559
   478
    if( ppa>>32 ) {
nkeynes@559
   479
	return 0;
nkeynes@559
   480
    }
nkeynes@559
   481
nkeynes@559
   482
    sh4addr_t addr = (sh4addr_t)ppa;
nkeynes@559
   483
    sh4ptr_t page = page_map[ (addr & 0x1FFFFFFF) >> 12 ];
nkeynes@559
   484
    if( ((uintptr_t)page) < MAX_IO_REGIONS ) { /* IO Region */
nkeynes@559
   485
        return NULL;
nkeynes@559
   486
    } else {
nkeynes@559
   487
        return page+(addr&0xFFF);
nkeynes@559
   488
    }
nkeynes@559
   489
}
nkeynes@559
   490
.