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qemu/hw/unin_pci.c

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/*
* QEMU Uninorth PCI host (for all Mac99 and newer machines)
*
* Copyright (c) 2006 Fabrice Bellard
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "hw.h"
#include "ppc_mac.h"
#include "pci.h"
/* debug UniNorth */
//#define DEBUG_UNIN
#ifdef DEBUG_UNIN
#define UNIN_DPRINTF(fmt, args...) \
do { printf("UNIN: " fmt , ##args); } while (0)
#else
#define UNIN_DPRINTF(fmt, args...)
#endif
typedef target_phys_addr_t pci_addr_t;
#include "pci_host.h"
typedef PCIHostState UNINState;
static void pci_unin_main_config_writel (void *opaque, target_phys_addr_t addr,
uint32_t val)
{
UNINState *s = opaque;
UNIN_DPRINTF("config_writel addr " TARGET_FMT_plx " val %x\n", addr, val);
#ifdef TARGET_WORDS_BIGENDIAN
val = bswap32(val);
#endif
s->config_reg = val;
}
static uint32_t pci_unin_main_config_readl (void *opaque,
target_phys_addr_t addr)
{
UNINState *s = opaque;
uint32_t val;
val = s->config_reg;
#ifdef TARGET_WORDS_BIGENDIAN
val = bswap32(val);
#endif
UNIN_DPRINTF("config_readl addr " TARGET_FMT_plx " val %x\n", addr, val);
return val;
}
static CPUWriteMemoryFunc *pci_unin_main_config_write[] = {
&pci_unin_main_config_writel,
&pci_unin_main_config_writel,
&pci_unin_main_config_writel,
};
static CPUReadMemoryFunc *pci_unin_main_config_read[] = {
&pci_unin_main_config_readl,
&pci_unin_main_config_readl,
&pci_unin_main_config_readl,
};
static CPUWriteMemoryFunc *pci_unin_main_write[] = {
&pci_host_data_writeb,
&pci_host_data_writew,
&pci_host_data_writel,
};
static CPUReadMemoryFunc *pci_unin_main_read[] = {
&pci_host_data_readb,
&pci_host_data_readw,
&pci_host_data_readl,
};
static void pci_unin_config_writel (void *opaque, target_phys_addr_t addr,
uint32_t val)
{
UNINState *s = opaque;
s->config_reg = val;
}
static uint32_t pci_unin_config_readl (void *opaque,
target_phys_addr_t addr)
{
UNINState *s = opaque;
return s->config_reg;
}
static CPUWriteMemoryFunc *pci_unin_config_write[] = {
&pci_unin_config_writel,
&pci_unin_config_writel,
&pci_unin_config_writel,
};
static CPUReadMemoryFunc *pci_unin_config_read[] = {
&pci_unin_config_readl,
&pci_unin_config_readl,
&pci_unin_config_readl,
};
#if 0
static CPUWriteMemoryFunc *pci_unin_write[] = {
&pci_host_pci_writeb,
&pci_host_pci_writew,
&pci_host_pci_writel,
};
static CPUReadMemoryFunc *pci_unin_read[] = {
&pci_host_pci_readb,
&pci_host_pci_readw,
&pci_host_pci_readl,
};
#endif
/* Don't know if this matches real hardware, but it agrees with OHW. */
static int pci_unin_map_irq(PCIDevice *pci_dev, int irq_num)
{
return (irq_num + (pci_dev->devfn >> 3)) & 3;
}
static void pci_unin_set_irq(qemu_irq *pic, int irq_num, int level)
{
qemu_set_irq(pic[irq_num + 8], level);
}
static void pci_unin_save(QEMUFile* f, void *opaque)
{
PCIDevice *d = opaque;
pci_device_save(d, f);
}
static int pci_unin_load(QEMUFile* f, void *opaque, int version_id)
{
PCIDevice *d = opaque;
if (version_id != 1)
return -EINVAL;
return pci_device_load(d, f);
}
static void pci_unin_reset(void *opaque)
{
}
PCIBus *pci_pmac_init(qemu_irq *pic)
{
UNINState *s;
PCIDevice *d;
int pci_mem_config, pci_mem_data;
/* Use values found on a real PowerMac */
/* Uninorth main bus */
s = qemu_mallocz(sizeof(UNINState));
s->bus = pci_register_bus(pci_unin_set_irq, pci_unin_map_irq,
pic, 11 << 3, 4);
pci_mem_config = cpu_register_io_memory(0, pci_unin_main_config_read,
pci_unin_main_config_write, s);
pci_mem_data = cpu_register_io_memory(0, pci_unin_main_read,
pci_unin_main_write, s);
cpu_register_physical_memory(0xf2800000, 0x1000, pci_mem_config);
cpu_register_physical_memory(0xf2c00000, 0x1000, pci_mem_data);
d = pci_register_device(s->bus, "Uni-north main", sizeof(PCIDevice),
11 << 3, NULL, NULL);
pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_APPLE);
pci_config_set_device_id(d->config, PCI_DEVICE_ID_APPLE_UNI_N_PCI);
d->config[0x08] = 0x00; // revision
pci_config_set_class(d->config, PCI_CLASS_BRIDGE_HOST);
d->config[0x0C] = 0x08; // cache_line_size
d->config[0x0D] = 0x10; // latency_timer
d->config[0x0E] = 0x00; // header_type
d->config[0x34] = 0x00; // capabilities_pointer
#if 0 // XXX: not activated as PPC BIOS doesn't handle multiple buses properly
/* pci-to-pci bridge */
d = pci_register_device("Uni-north bridge", sizeof(PCIDevice), 0, 13 << 3,
NULL, NULL);
pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_DEC);
pci_config_set_device_id(d->config, PCI_DEVICE_ID_DEC_21154);
d->config[0x08] = 0x05; // revision
pci_config_set_class(d->config, PCI_CLASS_BRIDGE_PCI);
d->config[0x0C] = 0x08; // cache_line_size
d->config[0x0D] = 0x20; // latency_timer
d->config[0x0E] = 0x01; // header_type
d->config[0x18] = 0x01; // primary_bus
d->config[0x19] = 0x02; // secondary_bus
d->config[0x1A] = 0x02; // subordinate_bus
d->config[0x1B] = 0x20; // secondary_latency_timer
d->config[0x1C] = 0x11; // io_base
d->config[0x1D] = 0x01; // io_limit
d->config[0x20] = 0x00; // memory_base
d->config[0x21] = 0x80;
d->config[0x22] = 0x00; // memory_limit
d->config[0x23] = 0x80;
d->config[0x24] = 0x01; // prefetchable_memory_base
d->config[0x25] = 0x80;
d->config[0x26] = 0xF1; // prefectchable_memory_limit
d->config[0x27] = 0x7F;
// d->config[0x34] = 0xdc // capabilities_pointer
#endif
/* Uninorth AGP bus */
pci_mem_config = cpu_register_io_memory(0, pci_unin_config_read,
pci_unin_config_write, s);
pci_mem_data = cpu_register_io_memory(0, pci_unin_main_read,
pci_unin_main_write, s);
cpu_register_physical_memory(0xf0800000, 0x1000, pci_mem_config);
cpu_register_physical_memory(0xf0c00000, 0x1000, pci_mem_data);
d = pci_register_device(s->bus, "Uni-north AGP", sizeof(PCIDevice),
11 << 3, NULL, NULL);
pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_APPLE);
pci_config_set_device_id(d->config, PCI_DEVICE_ID_APPLE_UNI_N_AGP);
d->config[0x08] = 0x00; // revision
pci_config_set_class(d->config, PCI_CLASS_BRIDGE_HOST);
d->config[0x0C] = 0x08; // cache_line_size
d->config[0x0D] = 0x10; // latency_timer
d->config[0x0E] = 0x00; // header_type
// d->config[0x34] = 0x80; // capabilities_pointer
#if 0 // XXX: not needed for now
/* Uninorth internal bus */
s = &pci_bridge[2];
pci_mem_config = cpu_register_io_memory(0, pci_unin_config_read,
pci_unin_config_write, s);
pci_mem_data = cpu_register_io_memory(0, pci_unin_read,
pci_unin_write, s);
cpu_register_physical_memory(0xf4800000, 0x1000, pci_mem_config);
cpu_register_physical_memory(0xf4c00000, 0x1000, pci_mem_data);
d = pci_register_device("Uni-north internal", sizeof(PCIDevice),
3, 11 << 3, NULL, NULL);
pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_APPLE);
pci_config_set_device_id(d->config, PCI_DEVICE_ID_APPLE_UNI_N_I_PCI);
d->config[0x08] = 0x00; // revision
pci_config_set_class(d->config, PCI_CLASS_BRIDGE_HOST);
d->config[0x0C] = 0x08; // cache_line_size
d->config[0x0D] = 0x10; // latency_timer
d->config[0x0E] = 0x00; // header_type
d->config[0x34] = 0x00; // capabilities_pointer
#endif
register_savevm("uninorth", 0, 1, pci_unin_save, pci_unin_load, d);
qemu_register_reset(pci_unin_reset, d);
pci_unin_reset(d);
return s->bus;
}
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