nkeynes@10: /**
nkeynes@586:  * $Id$
nkeynes@10:  * mem.c is responsible for creating and maintaining the overall system memory
nkeynes@10:  * map, as visible from the SH4 processor. 
nkeynes@10:  *
nkeynes@10:  * Copyright (c) 2005 Nathan Keynes.
nkeynes@10:  *
nkeynes@10:  * This program is free software; you can redistribute it and/or modify
nkeynes@10:  * it under the terms of the GNU General Public License as published by
nkeynes@10:  * the Free Software Foundation; either version 2 of the License, or
nkeynes@10:  * (at your option) any later version.
nkeynes@10:  *
nkeynes@10:  * This program is distributed in the hope that it will be useful,
nkeynes@10:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
nkeynes@10:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
nkeynes@10:  * GNU General Public License for more details.
nkeynes@10:  */
nkeynes@35: #define MODULE mem_module
nkeynes@10: 
nkeynes@488: #include <sys/types.h>
nkeynes@10: #include <sys/mman.h>
nkeynes@19: #include <sys/stat.h>
nkeynes@586: #include <glib/gstrfuncs.h>
nkeynes@10: #include <assert.h>
nkeynes@10: #include <stdint.h>
nkeynes@10: #include <stdlib.h>
nkeynes@10: #include <stdio.h>
nkeynes@10: #include <unistd.h>
nkeynes@10: #include <fcntl.h>
nkeynes@10: #include <errno.h>
nkeynes@10: #include <string.h>
nkeynes@10: #include <zlib.h>
nkeynes@10: #include "dream.h"
nkeynes@10: #include "mem.h"
nkeynes@10: #include "mmio.h"
nkeynes@10: #include "dreamcast.h"
nkeynes@10: 
nkeynes@939: #ifndef PAGE_SIZE
nkeynes@939: #define PAGE_SIZE 4096
nkeynes@939: #endif
nkeynes@939: 
nkeynes@502: sh4ptr_t *page_map = NULL;
nkeynes@930: mem_region_fn_t *ext_address_space = NULL;
nkeynes@930: 
nkeynes@930: extern struct mem_region_fn mem_region_unmapped; 
nkeynes@10: 
nkeynes@968: static int mem_load(FILE *f);
nkeynes@968: static void mem_save(FILE *f);
nkeynes@15: struct dreamcast_module mem_module =
nkeynes@736: { "MEM", mem_init, mem_reset, NULL, NULL, NULL, mem_save, mem_load };
nkeynes@15: 
nkeynes@10: struct mem_region mem_rgn[MAX_MEM_REGIONS];
nkeynes@10: struct mmio_region *io_rgn[MAX_IO_REGIONS];
nkeynes@10: struct mmio_region *P4_io[4096];
nkeynes@10: 
nkeynes@674: uint32_t num_io_rgns = 0, num_mem_rgns = 0;
nkeynes@10: 
nkeynes@931: DEFINE_HOOK( mem_page_remapped_hook, mem_page_remapped_hook_t );
nkeynes@931: static void mem_page_remapped( sh4addr_t addr, mem_region_fn_t fn )
nkeynes@931: {
nkeynes@931:     CALL_HOOKS( mem_page_remapped_hook, addr, fn );
nkeynes@931: }
nkeynes@931: 
nkeynes@931: /********************* The "unmapped" address space ********************/
nkeynes@931: /* Always reads as 0, writes have no effect */
nkeynes@931: int32_t FASTCALL unmapped_read_long( sh4addr_t addr )
nkeynes@931: {
nkeynes@931:     return 0;
nkeynes@931: }
nkeynes@931: void FASTCALL unmapped_write_long( sh4addr_t addr, uint32_t val )
nkeynes@931: {
nkeynes@931: }
nkeynes@931: void FASTCALL unmapped_read_burst( unsigned char *dest, sh4addr_t addr )
nkeynes@931: {
nkeynes@931:     memset( dest, 0, 32 );
nkeynes@931: }
nkeynes@931: void FASTCALL unmapped_write_burst( sh4addr_t addr, unsigned char *src )
nkeynes@931: {
nkeynes@931: }
nkeynes@931: 
nkeynes@946: void FASTCALL unmapped_prefetch( sh4addr_t addr )
nkeynes@946: {
nkeynes@946:     /* No effect */
nkeynes@946: }
nkeynes@946: 
nkeynes@931: struct mem_region_fn mem_region_unmapped = { 
nkeynes@931:         unmapped_read_long, unmapped_write_long, 
nkeynes@931:         unmapped_read_long, unmapped_write_long, 
nkeynes@931:         unmapped_read_long, unmapped_write_long, 
nkeynes@946:         unmapped_read_burst, unmapped_write_burst,
nkeynes@975:         unmapped_prefetch, unmapped_read_long }; 
nkeynes@931: 
nkeynes@10: void *mem_alloc_pages( int n )
nkeynes@10: {
nkeynes@10:     void *mem = mmap( NULL, n * 4096,
nkeynes@736:             PROT_READ|PROT_WRITE, MAP_ANON|MAP_PRIVATE, -1, 0 );
nkeynes@10:     if( mem == MAP_FAILED ) {
nkeynes@10:         ERROR( "Memory allocation failure! (%s)", strerror(errno) );
nkeynes@10:         return NULL;
nkeynes@10:     }
nkeynes@10:     return mem;
nkeynes@10: }
nkeynes@10: 
nkeynes@939: void mem_unprotect( void *region, uint32_t size )
nkeynes@939: {
nkeynes@939:     /* Force page alignment */
nkeynes@939:     uintptr_t i = (uintptr_t)region;
nkeynes@939:     uintptr_t mask = ~(PAGE_SIZE-1);
nkeynes@939:     void *ptr = (void *)(i & mask);
nkeynes@968:     size_t len = (i & (PAGE_SIZE-1)) + size;
nkeynes@939:     len = (len + (PAGE_SIZE-1)) & mask;
nkeynes@939:     
nkeynes@939:     int status = mprotect( ptr, len, PROT_READ|PROT_WRITE|PROT_EXEC );
nkeynes@939:     assert( status == 0 );
nkeynes@939: }
nkeynes@10: 
nkeynes@10: void mem_init( void )
nkeynes@10: {
nkeynes@930:     int i;
nkeynes@930:     mem_region_fn_t *ptr;
nkeynes@986:     page_map = (sh4ptr_t *)mmap( NULL, sizeof(sh4ptr_t) * LXDREAM_PAGE_TABLE_ENTRIES,
nkeynes@736:             PROT_READ|PROT_WRITE, MAP_ANON|MAP_PRIVATE, -1, 0 );
nkeynes@10:     if( page_map == MAP_FAILED ) {
nkeynes@930:         FATAL( "Unable to allocate page map! (%s)", strerror(errno) );
nkeynes@930:     }
nkeynes@930:     memset( page_map, 0, sizeof(sh4ptr_t) * LXDREAM_PAGE_TABLE_ENTRIES );
nkeynes@930:     
nkeynes@986:     ext_address_space = (mem_region_fn_t *) mmap( NULL, sizeof(mem_region_fn_t) * LXDREAM_PAGE_TABLE_ENTRIES,
nkeynes@930:             PROT_READ|PROT_WRITE, MAP_ANON|MAP_PRIVATE, -1, 0 );
nkeynes@930:     if( ext_address_space == MAP_FAILED ) {
nkeynes@930:         FATAL( "Unable to allocate external memory map (%s)", strerror(errno) );
nkeynes@10:     }
nkeynes@10: 
nkeynes@930:     for( ptr = ext_address_space, i = LXDREAM_PAGE_TABLE_ENTRIES; i > 0; ptr++, i-- ) {
nkeynes@930:         *ptr = &mem_region_unmapped;
nkeynes@930:     }
nkeynes@10: }
nkeynes@10: 
nkeynes@10: void mem_reset( void )
nkeynes@10: {
nkeynes@10:     /* Restore all mmio registers to their initial settings */
nkeynes@10:     int i, j;
nkeynes@10:     for( i=1; i<num_io_rgns; i++ ) {
nkeynes@10:         for( j=0; io_rgn[i]->ports[j].id != NULL; j++ ) {
nkeynes@10:             if( io_rgn[i]->ports[j].def_val != UNDEFINED &&
nkeynes@736:                     io_rgn[i]->ports[j].def_val != *io_rgn[i]->ports[j].val ) {
nkeynes@929:                 io_rgn[i]->fn.write_long( io_rgn[i]->ports[j].offset,
nkeynes@736:                         io_rgn[i]->ports[j].def_val );
nkeynes@10:             }
nkeynes@10:         }
nkeynes@10:     }
nkeynes@10: }
nkeynes@10: 
nkeynes@968: static void mem_save( FILE *f ) 
nkeynes@17: {
nkeynes@934:     int i, num_ram_regions = 0;
nkeynes@17:     uint32_t len;
nkeynes@736: 
nkeynes@934:     /* All RAM regions (ROM and non-memory regions don't need to be saved)
nkeynes@934:      * Flash is questionable - for now we save it too */
nkeynes@17:     for( i=0; i<num_mem_rgns; i++ ) {
nkeynes@934:         if( mem_rgn[i].flags == MEM_FLAG_RAM ) {
nkeynes@934:             num_ram_regions++;
nkeynes@934:         }
nkeynes@934:     }
nkeynes@934:     fwrite( &num_ram_regions, sizeof(num_ram_regions), 1, f );
nkeynes@934:     
nkeynes@934:     for( i=0; i<num_mem_rgns; i++ ) {
nkeynes@934:         if( mem_rgn[i].flags == MEM_FLAG_RAM ) {
nkeynes@932:             fwrite_string( mem_rgn[i].name, f );
nkeynes@932:             fwrite( &mem_rgn[i].base, sizeof(uint32_t), 1, f );
nkeynes@932:             fwrite( &mem_rgn[i].flags, sizeof(uint32_t), 1, f );
nkeynes@932:             fwrite( &mem_rgn[i].size, sizeof(uint32_t), 1, f );
nkeynes@934:             fwrite_gzip( mem_rgn[i].mem, mem_rgn[i].size, 1, f );
nkeynes@932:         }
nkeynes@17:     }
nkeynes@17: 
nkeynes@17:     /* All MMIO regions */
nkeynes@17:     fwrite( &num_io_rgns, sizeof(num_io_rgns), 1, f );
nkeynes@17:     for( i=0; i<num_io_rgns; i++ ) {
nkeynes@736:         fwrite_string( io_rgn[i]->id, f );
nkeynes@736:         fwrite( &io_rgn[i]->base, sizeof( uint32_t ), 1, f );
nkeynes@736:         len = 4096;
nkeynes@736:         fwrite( &len, sizeof(len), 1, f );
nkeynes@736:         fwrite_gzip( io_rgn[i]->mem, len, 1, f );
nkeynes@17:     }
nkeynes@17: }
nkeynes@17: 
nkeynes@968: static int mem_load( FILE *f )
nkeynes@17: {
nkeynes@17:     char tmp[64];
nkeynes@17:     uint32_t len;
nkeynes@18:     uint32_t base, size;
nkeynes@510:     uint32_t flags;
nkeynes@934:     int i, j;
nkeynes@934:     int mem_region_loaded[MAX_MEM_REGIONS];
nkeynes@17: 
nkeynes@934:     /* All RAM regions */
nkeynes@934:     memset( mem_region_loaded, 0, sizeof(mem_region_loaded) );
nkeynes@18:     fread( &len, sizeof(len), 1, f );
nkeynes@18:     for( i=0; i<len; i++ ) {
nkeynes@934:         fread_string( tmp, sizeof(tmp), f );
nkeynes@934: 
nkeynes@934:         for( j=0; j<num_mem_rgns; j++ ) {
nkeynes@934:             if( strcasecmp( mem_rgn[j].name, tmp ) == 0 ) {
nkeynes@934:                 fread( &base, sizeof(base), 1, f );
nkeynes@934:                 fread( &flags, sizeof(flags), 1, f );
nkeynes@934:                 fread( &size, sizeof(size), 1, f );
nkeynes@934:                 if( base != mem_rgn[j].base ||
nkeynes@934:                     flags != mem_rgn[j].flags ||
nkeynes@934:                     size != mem_rgn[j].size ) {
nkeynes@934:                     ERROR( "Bad memory block %d %s (not mapped to expected region)", i, tmp );
nkeynes@934:                     return -1;
nkeynes@934:                 }
nkeynes@934:                 if( flags != MEM_FLAG_RAM ) {
nkeynes@934:                     ERROR( "Unexpected memory block %d %s (Not a RAM region)", i, tmp );
nkeynes@934:                     return -1;
nkeynes@934:                 }
nkeynes@934:                 fread_gzip( mem_rgn[j].mem, size, 1, f );
nkeynes@934:                 mem_region_loaded[j] = 1;
nkeynes@959:                 break;
nkeynes@932:             }
nkeynes@934:         }
nkeynes@934:     }
nkeynes@934:     /* Make sure we got all the memory regions we expected */
nkeynes@934:     for( i=0; i<num_mem_rgns; i++ ) {
nkeynes@934:         if( mem_rgn[i].flags == MEM_FLAG_RAM &&
nkeynes@934:             mem_region_loaded[i] == 0 ) {
nkeynes@934:             ERROR( "Missing memory block %s (not found in save state)", mem_rgn[i].name );
nkeynes@934:             return -1;
nkeynes@736:         }
nkeynes@18:     }
nkeynes@18: 
nkeynes@18:     /* All MMIO regions */
nkeynes@18:     fread( &len, sizeof(len), 1, f );
nkeynes@934:     if( len != num_io_rgns ) {
nkeynes@934:         ERROR( "Unexpected IO region count %d (expected %d)", len, num_io_rgns );
nkeynes@736:         return -1;
nkeynes@934:     }
nkeynes@934:     
nkeynes@18:     for( i=0; i<len; i++ ) {
nkeynes@736:         fread_string( tmp, sizeof(tmp), f );
nkeynes@736:         fread( &base, sizeof(base), 1, f );
nkeynes@736:         fread( &size, sizeof(size), 1, f );
nkeynes@736:         if( strcmp( io_rgn[i]->id, tmp ) != 0 ||
nkeynes@736:                 base != io_rgn[i]->base ||
nkeynes@736:                 size != 4096 ) {
nkeynes@736:             ERROR( "Bad MMIO region %d %s", i, tmp );
nkeynes@736:             return -1;
nkeynes@736:         }
nkeynes@736:         fread_gzip( io_rgn[i]->mem, size, 1, f );
nkeynes@18:     }
nkeynes@18:     return 0;
nkeynes@17: }
nkeynes@17: 
nkeynes@50: int mem_save_block( const gchar *file, uint32_t start, uint32_t length )
nkeynes@19: {
nkeynes@502:     sh4ptr_t region;
nkeynes@50:     int len = 4096, total = 0;
nkeynes@50:     uint32_t addr = start;
nkeynes@50:     FILE *f = fopen(file,"w");
nkeynes@19: 
nkeynes@50:     if( f == NULL )
nkeynes@736:         return errno;
nkeynes@736: 
nkeynes@50:     while( total < length ) {
nkeynes@736:         region = mem_get_region(addr);
nkeynes@736:         len = 4096 - (addr & 0x0FFF);
nkeynes@736:         if( len > (length-total) ) 
nkeynes@736:             len = (length-total);
nkeynes@736:         if( fwrite( region, len, 1, f ) != 1 ) {
nkeynes@736:             ERROR( "Unexpected error writing blocks: %d (%s)", len, strerror(errno) );
nkeynes@736:             break;
nkeynes@736:         }
nkeynes@736: 
nkeynes@736:         addr += len;
nkeynes@736:         total += len;
nkeynes@50:     }
nkeynes@50:     fclose( f );
nkeynes@743:     INFO( "Saved %d of %d bytes to %08X", total, length, start );
nkeynes@50:     return 0;
nkeynes@19: }
nkeynes@19: 
nkeynes@19: int mem_load_block( const gchar *file, uint32_t start, uint32_t length )
nkeynes@19: {
nkeynes@502:     sh4ptr_t region;
nkeynes@19:     int len = 4096, total = 0;
nkeynes@19:     uint32_t addr = start;
nkeynes@19:     struct stat st;
nkeynes@19:     FILE *f = fopen(file,"r");
nkeynes@19: 
nkeynes@180:     if( f == NULL ) {
nkeynes@736:         WARN( "Unable to load file '%s': %s", file, strerror(errno) );
nkeynes@736:         return -1;
nkeynes@180:     }
nkeynes@19:     fstat( fileno(f), &st );
nkeynes@72:     if( length == 0 || length == -1 || length > st.st_size )
nkeynes@736:         length = st.st_size;
nkeynes@736: 
nkeynes@19:     while( total < length ) {
nkeynes@736:         region = mem_get_region(addr);
nkeynes@736:         len = 4096 - (addr & 0x0FFF);
nkeynes@736:         if( len > (length-total) ) 
nkeynes@736:             len = (length-total);
nkeynes@736:         if( fread( region, len, 1, f ) != 1 ) {
nkeynes@736:             ERROR( "Unexpected error reading: %d (%s)", len, strerror(errno) );
nkeynes@736:             break;
nkeynes@736:         }
nkeynes@736: 
nkeynes@736:         addr += len;
nkeynes@736:         total += len;
nkeynes@19:     }
nkeynes@19:     fclose( f );
nkeynes@19:     INFO( "Loaded %d of %d bytes to %08X", total, length, start );
nkeynes@19:     return 0;
nkeynes@19: }
nkeynes@19: 
nkeynes@10: struct mem_region *mem_map_region( void *mem, uint32_t base, uint32_t size,
nkeynes@934:                                    const char *name, mem_region_fn_t fn, int flags, 
nkeynes@934:                                    uint32_t repeat_offset, uint32_t repeat_until )
nkeynes@10: {
nkeynes@10:     int i;
nkeynes@10:     mem_rgn[num_mem_rgns].base = base;
nkeynes@10:     mem_rgn[num_mem_rgns].size = size;
nkeynes@10:     mem_rgn[num_mem_rgns].flags = flags;
nkeynes@10:     mem_rgn[num_mem_rgns].name = name;
nkeynes@10:     mem_rgn[num_mem_rgns].mem = mem;
nkeynes@929:     mem_rgn[num_mem_rgns].fn = fn;
nkeynes@946:     fn->prefetch = unmapped_prefetch;
nkeynes@975:     fn->read_byte_for_write = fn->read_byte;
nkeynes@10:     num_mem_rgns++;
nkeynes@10: 
nkeynes@146:     do {
nkeynes@930:         for( i=0; i<size>>LXDREAM_PAGE_BITS; i++ ) {
nkeynes@934:             if( mem != NULL ) {
nkeynes@968:                 page_map[(base>>LXDREAM_PAGE_BITS)+i] = ((unsigned char *)mem) + (i<<LXDREAM_PAGE_BITS);
nkeynes@934:             }
nkeynes@930:             ext_address_space[(base>>LXDREAM_PAGE_BITS)+i] = fn;
nkeynes@931:             mem_page_remapped( base + (i<<LXDREAM_PAGE_BITS), fn );
nkeynes@930:         }
nkeynes@736:         base += repeat_offset;	
nkeynes@146:     } while( base <= repeat_until );
nkeynes@10: 
nkeynes@10:     return &mem_rgn[num_mem_rgns-1];
nkeynes@10: }
nkeynes@10: 
nkeynes@934: gboolean mem_load_rom( void *output, const gchar *file, uint32_t size, uint32_t crc )
nkeynes@931: {
nkeynes@934:     if( file != NULL && file[0] != '\0' ) {
nkeynes@934:         FILE *f = fopen(file,"r");
nkeynes@934:         struct stat st;
nkeynes@934:         uint32_t calc_crc;
nkeynes@931: 
nkeynes@934:         if( f == NULL ) {
nkeynes@934:             ERROR( "Unable to load file '%s': %s", file, strerror(errno) );
nkeynes@736:             return FALSE;
nkeynes@736:         }
nkeynes@461: 
nkeynes@934:         fstat( fileno(f), &st );
nkeynes@934:         if( st.st_size != size ) {
nkeynes@934:             ERROR( "File '%s' is invalid, expected %d bytes but was %d bytes long.", file, size, st.st_size );
nkeynes@934:             fclose(f);
nkeynes@934:             return FALSE;
nkeynes@934:         }
nkeynes@934:         
nkeynes@934:         if( fread( output, 1, size, f ) != size ) { 
nkeynes@934:             ERROR( "Failed to load file '%s': %s", file, strerror(errno) );
nkeynes@934:             fclose(f);
nkeynes@934:             return FALSE;
nkeynes@934:         }
nkeynes@10: 
nkeynes@934:         /* CRC check only if we loaded something */
nkeynes@934:         calc_crc = crc32(0L, output, size);
nkeynes@934:         if( calc_crc != crc ) {
nkeynes@934:             WARN( "Bios CRC Mismatch in %s: %08X (expected %08X)",
nkeynes@934:                    file, calc_crc, crc);
nkeynes@736:         }
nkeynes@934:         /* Even if the CRC fails, continue normally */
nkeynes@934:         return TRUE;
nkeynes@10:     }
nkeynes@543:     return FALSE;
nkeynes@10: }
nkeynes@10: 
nkeynes@502: sh4ptr_t mem_get_region_by_name( const char *name )
nkeynes@10: {
nkeynes@10:     int i;
nkeynes@10:     for( i=0; i<num_mem_rgns; i++ ) {
nkeynes@10:         if( strcmp( mem_rgn[i].name, name ) == 0 )
nkeynes@10:             return mem_rgn[i].mem;
nkeynes@10:     }
nkeynes@10:     return NULL;
nkeynes@10: }
nkeynes@10: 
nkeynes@10: void register_io_region( struct mmio_region *io )
nkeynes@10: {
nkeynes@10:     int i;
nkeynes@736: 
nkeynes@10:     assert(io);
nkeynes@10:     io->mem = mem_alloc_pages(2);
nkeynes@796:     io->save_mem = io->mem + LXDREAM_PAGE_SIZE;
nkeynes@10:     io->index = (struct mmio_port **)malloc(1024*sizeof(struct mmio_port *));
nkeynes@41:     io->trace_flag = 0;
nkeynes@10:     memset( io->index, 0, 1024*sizeof(struct mmio_port *) );
nkeynes@10:     for( i=0; io->ports[i].id != NULL; i++ ) {
nkeynes@10:         io->ports[i].val = (uint32_t *)(io->mem + io->ports[i].offset);
nkeynes@10:         *io->ports[i].val = io->ports[i].def_val;
nkeynes@10:         io->index[io->ports[i].offset>>2] = &io->ports[i];
nkeynes@10:     }
nkeynes@796:     memcpy( io->save_mem, io->mem, LXDREAM_PAGE_SIZE );
nkeynes@10:     if( (io->base & 0xFF000000) == 0xFF000000 ) {
nkeynes@10:         /* P4 area (on-chip I/O channels */
nkeynes@10:         P4_io[(io->base&0x1FFFFFFF)>>19] = io;
nkeynes@10:     } else {
nkeynes@674:         page_map[io->base>>12] = (sh4ptr_t)(uintptr_t)num_io_rgns;
nkeynes@930:         ext_address_space[io->base>>12] = &io->fn;
nkeynes@931:         mem_page_remapped( io->base, &io->fn );
nkeynes@10:     }
nkeynes@10:     io_rgn[num_io_rgns] = io;
nkeynes@10:     num_io_rgns++;
nkeynes@10: }
nkeynes@10: 
nkeynes@10: void register_io_regions( struct mmio_region **io )
nkeynes@10: {
nkeynes@10:     while( *io ) register_io_region( *io++ );
nkeynes@10: }
nkeynes@10: 
nkeynes@934: gboolean mem_has_page( uint32_t addr )
nkeynes@10: {
nkeynes@934:     return ext_address_space[ (addr&0x1FFFFFFF)>>12 ] != &mem_region_unmapped;
nkeynes@10: }
nkeynes@10: 
nkeynes@502: sh4ptr_t mem_get_region( uint32_t addr )
nkeynes@10: {
nkeynes@502:     sh4ptr_t page = page_map[ (addr & 0x1FFFFFFF) >> 12 ];
nkeynes@490:     if( ((uintptr_t)page) < MAX_IO_REGIONS ) { /* IO Region */
nkeynes@10:         return NULL;
nkeynes@10:     } else {
nkeynes@10:         return page+(addr&0xFFF);
nkeynes@10:     }
nkeynes@10: }
nkeynes@11: 
nkeynes@669: void mem_write_long( sh4addr_t addr, uint32_t value )
nkeynes@669: {
nkeynes@934:     ext_address_space[(addr&0x1FFFFFFF)>>12]->write_long(addr, value);
nkeynes@156: }
nkeynes@156: 
nkeynes@968: static struct mmio_region *mem_get_io_region_by_name( const gchar *name )
nkeynes@156: {
nkeynes@586:     int i;
nkeynes@586:     for( i=0; i<num_io_rgns; i++ ) {
nkeynes@736:         if( strcasecmp(io_rgn[i]->id, name) == 0 ) {
nkeynes@736:             return io_rgn[i];
nkeynes@736:         }
nkeynes@586:     }
nkeynes@586:     return NULL;
nkeynes@156: }
nkeynes@156: 
nkeynes@586: void mem_set_trace( const gchar *tracelist, gboolean flag )
nkeynes@586: {
nkeynes@586:     if( tracelist != NULL ) {
nkeynes@736:         gchar ** tracev = g_strsplit_set( tracelist, ",:; \t\r\n", 0 );
nkeynes@736:         int i;
nkeynes@736:         for( i=0; tracev[i] != NULL; i++ ) {
nkeynes@736:             // Special case "all" - trace everything
nkeynes@736:             if( strcasecmp(tracev[i], "all") == 0 ) {
nkeynes@736:                 int j;
nkeynes@736:                 for( j=0; j<num_io_rgns; j++ ) {
nkeynes@736:                     io_rgn[j]->trace_flag = flag ? 1 : 0;
nkeynes@736:                 }
nkeynes@736:                 break;
nkeynes@736:             }
nkeynes@736:             struct mmio_region *region = mem_get_io_region_by_name( tracev[i] );
nkeynes@736:             if( region == NULL ) {
nkeynes@736:                 WARN( "Unknown IO region '%s'", tracev[i] );
nkeynes@736:             } else {
nkeynes@736:                 region->trace_flag = flag ? 1 : 0;
nkeynes@736:             }
nkeynes@736:         }
nkeynes@736:         g_strfreev( tracev );
nkeynes@586:     }
nkeynes@586: }
nkeynes@586: