motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-06 09:13:55 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

pflash_cfi01/pflash_cfi02: convert to memory API

Browse source 
cfi02 is annoying in that is ignores some address bits; we probably
want explicit support in the memory API for that.

In order to get the correct opaque into the MemoryRegion object, the
allocation scheme is changed so that the flash emulation code allocates
memory, instead of the caller.  This clears a FIXME in the flash code.

Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Avi Kivity 2011-08-04 15:55:30 +03:00
parent ccbecf6237
commit cfe5f01104
18 changed files with 187 additions and 181 deletions
Download patch file Download diff file Expand all files Collapse all files

49
hw/ppc405_boards.c
View file

@ -32,6 +32,7 @@
#include "qemu-log.h"
#include "loader.h"
#include "blockdev.h"
#include "exec-memory.h"
#define BIOS_FILENAME "ppc405_rom.bin"
#define BIOS_SIZE (2048 * 1024)
@ -181,7 +182,8 @@ static void ref405ep_init (ram_addr_t ram_size,
ppc4xx_bd_info_t bd;
CPUPPCState *env;
qemu_irq *pic;
ram_addr_t sram_offset, bios_offset, bdloc;
MemoryRegion *bios;
ram_addr_t sram_offset, bdloc;
MemoryRegion *ram_memories = g_malloc(2 * sizeof(*ram_memories));
target_phys_addr_t ram_bases[2], ram_sizes[2];
target_ulong sram_size;
@ -224,15 +226,15 @@ static void ref405ep_init (ram_addr_t ram_size,
dinfo = drive_get(IF_PFLASH, 0, fl_idx);
if (dinfo) {
bios_size = bdrv_getlength(dinfo->bdrv);
bios_offset = qemu_ram_alloc(NULL, "ef405ep.bios", bios_size);
fl_sectors = (bios_size + 65535) >> 16;
#ifdef DEBUG_BOARD_INIT
printf("Register parallel flash %d size %lx"
" at offset %08lx addr %lx '%s' %d\n",
fl_idx, bios_size, bios_offset, -bios_size,
" at addr %lx '%s' %d\n",
fl_idx, bios_size, -bios_size,
bdrv_get_device_name(dinfo->bdrv), fl_sectors);
#endif
pflash_cfi02_register((uint32_t)(-bios_size), bios_offset,
pflash_cfi02_register((uint32_t)(-bios_size),
NULL, "ef405ep.bios", bios_size,
dinfo->bdrv, 65536, fl_sectors, 1,
2, 0x0001, 0x22DA, 0x0000, 0x0000, 0x555, 0x2AA,
1);
@ -243,12 +245,13 @@ static void ref405ep_init (ram_addr_t ram_size,
#ifdef DEBUG_BOARD_INIT
printf("Load BIOS from file\n");
#endif
bios_offset = qemu_ram_alloc(NULL, "ef405ep.bios", BIOS_SIZE);
bios = g_new(MemoryRegion, 1);
memory_region_init_ram(bios, NULL, "ef405ep.bios", BIOS_SIZE);
if (bios_name == NULL)
bios_name = BIOS_FILENAME;
filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
if (filename) {
bios_size = load_image(filename, qemu_get_ram_ptr(bios_offset));
bios_size = load_image(filename, memory_region_get_ram_ptr(bios));
g_free(filename);
} else {
bios_size = -1;
@ -259,8 +262,9 @@ static void ref405ep_init (ram_addr_t ram_size,
exit(1);
}
bios_size = (bios_size + 0xfff) & ~0xfff;
cpu_register_physical_memory((uint32_t)(-bios_size),
bios_size, bios_offset | IO_MEM_ROM);
memory_region_set_readonly(bios, true);
memory_region_add_subregion(get_system_memory(),
(uint32_t)(-bios_size), bios);
}
/* Register FPGA */
#ifdef DEBUG_BOARD_INIT
@ -507,7 +511,7 @@ static void taihu_405ep_init(ram_addr_t ram_size,
{
char *filename;
qemu_irq *pic;
ram_addr_t bios_offset;
MemoryRegion *bios;
MemoryRegion *ram_memories = g_malloc(2 * sizeof(*ram_memories));
target_phys_addr_t ram_bases[2], ram_sizes[2];
long bios_size;
@ -544,14 +548,14 @@ static void taihu_405ep_init(ram_addr_t ram_size,
/* XXX: should check that size is 2MB */
// bios_size = 2 * 1024 * 1024;
fl_sectors = (bios_size + 65535) >> 16;
bios_offset = qemu_ram_alloc(NULL, "taihu_405ep.bios", bios_size);
#ifdef DEBUG_BOARD_INIT
printf("Register parallel flash %d size %lx"
" at offset %08lx addr %lx '%s' %d\n",
fl_idx, bios_size, bios_offset, -bios_size,
" at addr %lx '%s' %d\n",
fl_idx, bios_size, -bios_size,
bdrv_get_device_name(dinfo->bdrv), fl_sectors);
#endif
pflash_cfi02_register((uint32_t)(-bios_size), bios_offset,
pflash_cfi02_register((uint32_t)(-bios_size),
NULL, "taihu_405ep.bios", bios_size,
dinfo->bdrv, 65536, fl_sectors, 1,
4, 0x0001, 0x22DA, 0x0000, 0x0000, 0x555, 0x2AA,
1);
@ -564,10 +568,11 @@ static void taihu_405ep_init(ram_addr_t ram_size,
#endif
if (bios_name == NULL)
bios_name = BIOS_FILENAME;
bios_offset = qemu_ram_alloc(NULL, "taihu_405ep.bios", BIOS_SIZE);
bios = g_new(MemoryRegion, 1);
memory_region_init_ram(bios, NULL, "taihu_405ep.bios", BIOS_SIZE);
filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
if (filename) {
bios_size = load_image(filename, qemu_get_ram_ptr(bios_offset));
bios_size = load_image(filename, memory_region_get_ram_ptr(bios));
g_free(filename);
} else {
bios_size = -1;
@ -578,8 +583,9 @@ static void taihu_405ep_init(ram_addr_t ram_size,
exit(1);
}
bios_size = (bios_size + 0xfff) & ~0xfff;
cpu_register_physical_memory((uint32_t)(-bios_size),
bios_size, bios_offset | IO_MEM_ROM);
memory_region_set_readonly(bios, true);
memory_region_add_subregion(get_system_memory(), (uint32_t)(-bios_size),
bios);
}
/* Register Linux flash */
dinfo = drive_get(IF_PFLASH, 0, fl_idx);
@ -590,12 +596,11 @@ static void taihu_405ep_init(ram_addr_t ram_size,
fl_sectors = (bios_size + 65535) >> 16;
#ifdef DEBUG_BOARD_INIT
printf("Register parallel flash %d size %lx"
" at offset %08lx addr " TARGET_FMT_lx " '%s'\n",
fl_idx, bios_size, bios_offset, (target_ulong)0xfc000000,
" at addr " TARGET_FMT_lx " '%s'\n",
fl_idx, bios_size, (target_ulong)0xfc000000,
bdrv_get_device_name(dinfo->bdrv));
#endif
bios_offset = qemu_ram_alloc(NULL, "taihu_405ep.flash", bios_size);
pflash_cfi02_register(0xfc000000, bios_offset,
pflash_cfi02_register(0xfc000000, NULL, "taihu_405ep.flash", bios_size,
dinfo->bdrv, 65536, fl_sectors, 1,
4, 0x0001, 0x22DA, 0x0000, 0x0000, 0x555, 0x2AA,
1);