* THE SOFTWARE.
*/
-/* XXX This file and most of its contests are somewhat misnamed. The
+/* XXX This file and most of its contents are somewhat misnamed. The
Ultrasparc PCI host is called the PCI Bus Module (PBM). The APB is
the secondary PCI bridge. */
-#include "hw.h"
+#include "sysbus.h"
#include "pci.h"
-typedef target_phys_addr_t pci_addr_t;
#include "pci_host.h"
+#include "apb_pci.h"
-typedef PCIHostState APBState;
+/* debug APB */
+//#define DEBUG_APB
-static void pci_apb_config_writel (void *opaque, target_phys_addr_t addr,
- uint32_t val)
-{
- APBState *s = opaque;
- int i;
-
- for (i = 11; i < 32; i++) {
- if ((val & (1 << i)) != 0)
- break;
- }
- s->config_reg = (1 << 16) | (val & 0x7FC) | (i << 11);
-}
-
-static uint32_t pci_apb_config_readl (void *opaque,
- target_phys_addr_t addr)
-{
- APBState *s = opaque;
- uint32_t val;
- int devfn;
-
- devfn = (s->config_reg >> 8) & 0xFF;
- val = (1 << (devfn >> 3)) | ((devfn & 0x07) << 8) | (s->config_reg & 0xFC);
- return val;
-}
+#ifdef DEBUG_APB
+#define APB_DPRINTF(fmt, ...) \
+do { printf("APB: " fmt , ## __VA_ARGS__); } while (0)
+#else
+#define APB_DPRINTF(fmt, ...)
+#endif
-static CPUWriteMemoryFunc *pci_apb_config_write[] = {
- &pci_apb_config_writel,
- &pci_apb_config_writel,
- &pci_apb_config_writel,
-};
+/*
+ * Chipset docs:
+ * PBM: "UltraSPARC IIi User's Manual",
+ * http://www.sun.com/processors/manuals/805-0087.pdf
+ *
+ * APB: "Advanced PCI Bridge (APB) User's Manual",
+ * http://www.sun.com/processors/manuals/805-1251.pdf
+ */
-static CPUReadMemoryFunc *pci_apb_config_read[] = {
- &pci_apb_config_readl,
- &pci_apb_config_readl,
- &pci_apb_config_readl,
-};
+typedef struct APBState {
+ SysBusDevice busdev;
+ PCIHostState host_state;
+} APBState;
static void apb_config_writel (void *opaque, target_phys_addr_t addr,
uint32_t val)
return val;
}
-static CPUWriteMemoryFunc *apb_config_write[] = {
+static CPUWriteMemoryFunc * const apb_config_write[] = {
&apb_config_writel,
&apb_config_writel,
&apb_config_writel,
};
-static CPUReadMemoryFunc *apb_config_read[] = {
+static CPUReadMemoryFunc * const apb_config_read[] = {
&apb_config_readl,
&apb_config_readl,
&apb_config_readl,
};
-static CPUWriteMemoryFunc *pci_apb_write[] = {
- &pci_host_data_writeb,
- &pci_host_data_writew,
- &pci_host_data_writel,
-};
-
-static CPUReadMemoryFunc *pci_apb_read[] = {
- &pci_host_data_readb,
- &pci_host_data_readw,
- &pci_host_data_readl,
-};
-
static void pci_apb_iowriteb (void *opaque, target_phys_addr_t addr,
uint32_t val)
{
- cpu_outb(NULL, addr & 0xffff, val);
+ cpu_outb(addr & IOPORTS_MASK, val);
}
static void pci_apb_iowritew (void *opaque, target_phys_addr_t addr,
uint32_t val)
{
- cpu_outw(NULL, addr & 0xffff, val);
+ cpu_outw(addr & IOPORTS_MASK, val);
}
static void pci_apb_iowritel (void *opaque, target_phys_addr_t addr,
uint32_t val)
{
- cpu_outl(NULL, addr & 0xffff, val);
+ cpu_outl(addr & IOPORTS_MASK, val);
}
static uint32_t pci_apb_ioreadb (void *opaque, target_phys_addr_t addr)
{
uint32_t val;
- val = cpu_inb(NULL, addr & 0xffff);
+ val = cpu_inb(addr & IOPORTS_MASK);
return val;
}
{
uint32_t val;
- val = cpu_inw(NULL, addr & 0xffff);
+ val = cpu_inw(addr & IOPORTS_MASK);
return val;
}
{
uint32_t val;
- val = cpu_inl(NULL, addr & 0xffff);
+ val = cpu_inl(addr & IOPORTS_MASK);
return val;
}
-static CPUWriteMemoryFunc *pci_apb_iowrite[] = {
+static CPUWriteMemoryFunc * const pci_apb_iowrite[] = {
&pci_apb_iowriteb,
&pci_apb_iowritew,
&pci_apb_iowritel,
};
-static CPUReadMemoryFunc *pci_apb_ioread[] = {
+static CPUReadMemoryFunc * const pci_apb_ioread[] = {
&pci_apb_ioreadb,
&pci_apb_ioreadw,
&pci_apb_ioreadl,
return bus_offset + irq_num;
}
-static void pci_apb_set_irq(qemu_irq *pic, int irq_num, int level)
+static void pci_apb_set_irq(void *opaque, int irq_num, int level)
{
+ qemu_irq *pic = opaque;
+
/* PCI IRQ map onto the first 32 INO. */
qemu_set_irq(pic[irq_num], level);
}
+static void apb_pci_bridge_init(PCIBus *b)
+{
+ PCIDevice *dev = pci_bridge_get_device(b);
+
+ /*
+ * command register:
+ * According to PCI bridge spec, after reset
+ * bus master bit is off
+ * memory space enable bit is off
+ * According to manual (805-1251.pdf).
+ * the reset value should be zero unless the boot pin is tied high
+ * (which is true) and thus it should be PCI_COMMAND_MEMORY.
+ */
+ pci_set_word(dev->config + PCI_COMMAND,
+ PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER);
+ dev->config[PCI_LATENCY_TIMER] = 0x10;
+ dev->config[PCI_HEADER_TYPE] |= PCI_HEADER_TYPE_MULTI_FUNCTION;
+}
+
PCIBus *pci_apb_init(target_phys_addr_t special_base,
target_phys_addr_t mem_base,
- qemu_irq *pic)
+ qemu_irq *pic, PCIBus **bus2, PCIBus **bus3)
{
- APBState *s;
- PCIDevice *d;
- int pci_mem_config, pci_mem_data, apb_config, pci_ioport;
- PCIBus *secondary;
+ DeviceState *dev;
+ SysBusDevice *s;
+ APBState *d;
- s = qemu_mallocz(sizeof(APBState));
/* Ultrasparc PBM main bus */
- s->bus = pci_register_bus(pci_apb_set_irq, pci_pbm_map_irq, pic, 0, 32);
+ dev = qdev_create(NULL, "pbm");
+ qdev_init_nofail(dev);
+ s = sysbus_from_qdev(dev);
+ /* apb_config */
+ sysbus_mmio_map(s, 0, special_base + 0x2000ULL);
+ /* pci_ioport */
+ sysbus_mmio_map(s, 1, special_base + 0x2000000ULL);
+ /* mem_config: XXX size should be 4G-prom */
+ sysbus_mmio_map(s, 2, special_base + 0x1000000ULL);
+ /* mem_data */
+ sysbus_mmio_map(s, 3, mem_base);
+ d = FROM_SYSBUS(APBState, s);
+ d->host_state.bus = pci_register_bus(&d->busdev.qdev, "pci",
+ pci_apb_set_irq, pci_pbm_map_irq, pic,
+ 0, 32);
+ pci_create_simple(d->host_state.bus, 0, "pbm");
+ /* APB secondary busses */
+ *bus2 = pci_bridge_init(d->host_state.bus, PCI_DEVFN(1, 0),
+ PCI_VENDOR_ID_SUN, PCI_DEVICE_ID_SUN_SIMBA,
+ pci_apb_map_irq,
+ "Advanced PCI Bus secondary bridge 1");
+ apb_pci_bridge_init(*bus2);
+
+ *bus3 = pci_bridge_init(d->host_state.bus, PCI_DEVFN(1, 1),
+ PCI_VENDOR_ID_SUN, PCI_DEVICE_ID_SUN_SIMBA,
+ pci_apb_map_irq,
+ "Advanced PCI Bus secondary bridge 2");
+ apb_pci_bridge_init(*bus3);
+
+ return d->host_state.bus;
+}
+
+static int pci_pbm_init_device(SysBusDevice *dev)
+{
+
+ APBState *s;
+ int pci_mem_config, pci_mem_data, apb_config, pci_ioport;
- pci_mem_config = cpu_register_io_memory(0, pci_apb_config_read,
- pci_apb_config_write, s);
- apb_config = cpu_register_io_memory(0, apb_config_read,
+ s = FROM_SYSBUS(APBState, dev);
+ /* apb_config */
+ apb_config = cpu_register_io_memory(apb_config_read,
apb_config_write, s);
- pci_mem_data = cpu_register_io_memory(0, pci_apb_read,
- pci_apb_write, s);
- pci_ioport = cpu_register_io_memory(0, pci_apb_ioread,
+ sysbus_init_mmio(dev, 0x40ULL, apb_config);
+ /* pci_ioport */
+ pci_ioport = cpu_register_io_memory(pci_apb_ioread,
pci_apb_iowrite, s);
+ sysbus_init_mmio(dev, 0x10000ULL, pci_ioport);
+ /* mem_config */
+ pci_mem_config = pci_host_conf_register_mmio(&s->host_state);
+ sysbus_init_mmio(dev, 0x10ULL, pci_mem_config);
+ /* mem_data */
+ pci_mem_data = pci_host_data_register_mmio(&s->host_state);
+ sysbus_init_mmio(dev, 0x10000000ULL, pci_mem_data);
+ return 0;
+}
- cpu_register_physical_memory(special_base + 0x2000ULL, 0x40, apb_config);
- cpu_register_physical_memory(special_base + 0x1000000ULL, 0x10,
- pci_mem_config);
- cpu_register_physical_memory(special_base + 0x2000000ULL, 0x10000,
- pci_ioport);
- cpu_register_physical_memory(mem_base, 0x10000000,
- pci_mem_data); // XXX size should be 4G-prom
-
- d = pci_register_device(s->bus, "Advanced PCI Bus", sizeof(PCIDevice),
- 0, NULL, NULL);
- d->config[0x00] = 0x8e; // vendor_id : Sun
- d->config[0x01] = 0x10;
- d->config[0x02] = 0x00; // device_id
- d->config[0x03] = 0xa0;
+static int pbm_pci_host_init(PCIDevice *d)
+{
+ pci_config_set_vendor_id(d->config, PCI_VENDOR_ID_SUN);
+ pci_config_set_device_id(d->config, PCI_DEVICE_ID_SUN_SABRE);
d->config[0x04] = 0x06; // command = bus master, pci mem
d->config[0x05] = 0x00;
d->config[0x06] = 0xa0; // status = fast back-to-back, 66MHz, no error
d->config[0x07] = 0x03; // status = medium devsel
d->config[0x08] = 0x00; // revision
d->config[0x09] = 0x00; // programming i/f
- d->config[0x0A] = 0x00; // class_sub = pci host
- d->config[0x0B] = 0x06; // class_base = PCI_bridge
+ pci_config_set_class(d->config, PCI_CLASS_BRIDGE_HOST);
d->config[0x0D] = 0x10; // latency_timer
- d->config[0x0E] = 0x00; // header_type
+ d->config[PCI_HEADER_TYPE] = PCI_HEADER_TYPE_NORMAL; // header_type
+ return 0;
+}
- /* APB secondary busses */
- secondary = pci_bridge_init(s->bus, 8, 0x108e5000, pci_apb_map_irq,
- "Advanced PCI Bus secondary bridge 1");
- pci_bridge_init(s->bus, 9, 0x108e5000, pci_apb_map_irq,
- "Advanced PCI Bus secondary bridge 2");
- return secondary;
+static PCIDeviceInfo pbm_pci_host_info = {
+ .qdev.name = "pbm",
+ .qdev.size = sizeof(PCIDevice),
+ .init = pbm_pci_host_init,
+};
+
+static void pbm_register_devices(void)
+{
+ sysbus_register_dev("pbm", sizeof(APBState), pci_pbm_init_device);
+ pci_qdev_register(&pbm_pci_host_info);
}
+
+device_init(pbm_register_devices)
projects / qemu.git / blobdiff