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"
+#include "pci_host.h"
+#include "rwhandler.h"
+#include "apb_pci.h"
/* debug APB */
//#define DEBUG_APB
#ifdef DEBUG_APB
-#define APB_DPRINTF(fmt, args...) \
-do { printf("APB: " fmt , ##args); } while (0)
+#define APB_DPRINTF(fmt, ...) \
+do { printf("APB: " fmt , ## __VA_ARGS__); } while (0)
#else
-#define APB_DPRINTF(fmt, args...)
+#define APB_DPRINTF(fmt, ...)
#endif
-typedef target_phys_addr_t pci_addr_t;
-#include "pci_host.h"
-
-typedef PCIHostState APBState;
-
-static void pci_apb_config_writel (void *opaque, target_phys_addr_t addr,
- uint32_t val)
-{
- APBState *s = opaque;
+/*
+ * 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
+ */
-#ifdef TARGET_WORDS_BIGENDIAN
- val = bswap32(val);
-#endif
- APB_DPRINTF("config_writel addr " TARGET_FMT_plx " val %x\n", addr,
- val);
- s->config_reg = val;
-}
+#define PBM_PCI_IMR_MASK 0x7fffffff
+#define PBM_PCI_IMR_ENABLED 0x80000000
+
+#define POR (1 << 31)
+#define SOFT_POR (1 << 30)
+#define SOFT_XIR (1 << 29)
+#define BTN_POR (1 << 28)
+#define BTN_XIR (1 << 27)
+#define RESET_MASK 0xf8000000
+#define RESET_WCMASK 0x98000000
+#define RESET_WMASK 0x60000000
+
+typedef struct APBState {
+ SysBusDevice busdev;
+ PCIBus *bus;
+ ReadWriteHandler pci_config_handler;
+ uint32_t iommu[4];
+ uint32_t pci_control[16];
+ uint32_t pci_irq_map[8];
+ uint32_t obio_irq_map[32];
+ qemu_irq pci_irqs[32];
+ uint32_t reset_control;
+ unsigned int nr_resets;
+} APBState;
-static uint32_t pci_apb_config_readl (void *opaque,
- target_phys_addr_t addr)
+static void apb_config_writel (void *opaque, target_phys_addr_t addr,
+ uint32_t val)
{
APBState *s = opaque;
- uint32_t val;
-
- val = s->config_reg;
-#ifdef TARGET_WORDS_BIGENDIAN
- val = bswap32(val);
-#endif
- APB_DPRINTF("config_readl addr " TARGET_FMT_plx " val %x\n", addr,
- val);
- return val;
-}
-static CPUWriteMemoryFunc *pci_apb_config_write[] = {
- &pci_apb_config_writel,
- &pci_apb_config_writel,
- &pci_apb_config_writel,
-};
-
-static CPUReadMemoryFunc *pci_apb_config_read[] = {
- &pci_apb_config_readl,
- &pci_apb_config_readl,
- &pci_apb_config_readl,
-};
+ APB_DPRINTF("%s: addr " TARGET_FMT_lx " val %x\n", __func__, addr, val);
-static void apb_config_writel (void *opaque, target_phys_addr_t addr,
- uint32_t val)
-{
- //PCIBus *s = opaque;
-
- switch (addr & 0x3f) {
- case 0x00: // Control/Status
- case 0x10: // AFSR
- case 0x18: // AFAR
- case 0x20: // Diagnostic
- case 0x28: // Target address space
- // XXX
+ switch (addr & 0xffff) {
+ case 0x30 ... 0x4f: /* DMA error registers */
+ /* XXX: not implemented yet */
+ break;
+ case 0x200 ... 0x20b: /* IOMMU */
+ s->iommu[(addr & 0xf) >> 2] = val;
+ break;
+ case 0x20c ... 0x3ff: /* IOMMU flush */
+ break;
+ case 0xc00 ... 0xc3f: /* PCI interrupt control */
+ if (addr & 4) {
+ s->pci_irq_map[(addr & 0x3f) >> 3] &= PBM_PCI_IMR_MASK;
+ s->pci_irq_map[(addr & 0x3f) >> 3] |= val & ~PBM_PCI_IMR_MASK;
+ }
+ break;
+ case 0x2000 ... 0x202f: /* PCI control */
+ s->pci_control[(addr & 0x3f) >> 2] = val;
+ break;
+ case 0xf020 ... 0xf027: /* Reset control */
+ if (addr & 4) {
+ val &= RESET_MASK;
+ s->reset_control &= ~(val & RESET_WCMASK);
+ s->reset_control |= val & RESET_WMASK;
+ if (val & SOFT_POR) {
+ s->nr_resets = 0;
+ qemu_system_reset_request();
+ } else if (val & SOFT_XIR) {
+ qemu_system_reset_request();
+ }
+ }
+ break;
+ case 0x5000 ... 0x51cf: /* PIO/DMA diagnostics */
+ case 0xa400 ... 0xa67f: /* IOMMU diagnostics */
+ case 0xa800 ... 0xa80f: /* Interrupt diagnostics */
+ case 0xf000 ... 0xf01f: /* FFB config, memory control */
+ /* we don't care */
default:
break;
}
static uint32_t apb_config_readl (void *opaque,
target_phys_addr_t addr)
{
- //PCIBus *s = opaque;
+ APBState *s = opaque;
uint32_t val;
- switch (addr & 0x3f) {
- case 0x00: // Control/Status
- case 0x10: // AFSR
- case 0x18: // AFAR
- case 0x20: // Diagnostic
- case 0x28: // Target address space
- // XXX
+ switch (addr & 0xffff) {
+ case 0x30 ... 0x4f: /* DMA error registers */
+ val = 0;
+ /* XXX: not implemented yet */
+ break;
+ case 0x200 ... 0x20b: /* IOMMU */
+ val = s->iommu[(addr & 0xf) >> 2];
+ break;
+ case 0x20c ... 0x3ff: /* IOMMU flush */
+ val = 0;
+ break;
+ case 0xc00 ... 0xc3f: /* PCI interrupt control */
+ if (addr & 4) {
+ val = s->pci_irq_map[(addr & 0x3f) >> 3];
+ } else {
+ val = 0;
+ }
+ break;
+ case 0x2000 ... 0x202f: /* PCI control */
+ val = s->pci_control[(addr & 0x3f) >> 2];
+ break;
+ case 0xf020 ... 0xf027: /* Reset control */
+ if (addr & 4) {
+ val = s->reset_control;
+ } else {
+ val = 0;
+ }
+ break;
+ case 0x5000 ... 0x51cf: /* PIO/DMA diagnostics */
+ case 0xa400 ... 0xa67f: /* IOMMU diagnostics */
+ case 0xa800 ... 0xa80f: /* Interrupt diagnostics */
+ case 0xf000 ... 0xf01f: /* FFB config, memory control */
+ /* we don't care */
default:
val = 0;
break;
}
+ APB_DPRINTF("%s: addr " TARGET_FMT_lx " -> %x\n", __func__, addr, 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 void apb_pci_config_write(ReadWriteHandler *h, pcibus_t addr,
+ uint32_t val, int size)
+{
+ APBState *s = container_of(h, APBState, pci_config_handler);
-static CPUReadMemoryFunc *pci_apb_read[] = {
- &pci_host_data_readb,
- &pci_host_data_readw,
- &pci_host_data_readl,
-};
+ val = qemu_bswap_len(val, size);
+ APB_DPRINTF("%s: addr " TARGET_FMT_lx " val %x\n", __func__, addr, val);
+ pci_data_write(s->bus, addr, val, size);
+}
+
+static uint32_t apb_pci_config_read(ReadWriteHandler *h, pcibus_t addr,
+ int size)
+{
+ uint32_t ret;
+ APBState *s = container_of(h, APBState, pci_config_handler);
+
+ ret = pci_data_read(s->bus, addr, size);
+ ret = qemu_bswap_len(ret, size);
+ APB_DPRINTF("%s: addr " TARGET_FMT_lx " -> %x\n", __func__, addr, ret);
+ return ret;
+}
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, bswap16(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, bswap32(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 = bswap16(cpu_inw(addr & IOPORTS_MASK));
return val;
}
{
uint32_t val;
- val = cpu_inl(NULL, addr & 0xffff);
+ val = bswap32(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)
{
+ APBState *s = opaque;
+
/* PCI IRQ map onto the first 32 INO. */
- qemu_set_irq(pic[irq_num], level);
+ if (irq_num < 32) {
+ if (s->pci_irq_map[irq_num >> 2] & PBM_PCI_IMR_ENABLED) {
+ APB_DPRINTF("%s: set irq %d level %d\n", __func__, irq_num, level);
+ qemu_set_irq(s->pci_irqs[irq_num], level);
+ } else {
+ APB_DPRINTF("%s: not enabled: lower irq %d\n", __func__, irq_num);
+ qemu_irq_lower(s->pci_irqs[irq_num]);
+ }
+ }
+}
+
+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_set_word(dev->config + PCI_STATUS,
+ PCI_STATUS_FAST_BACK | PCI_STATUS_66MHZ |
+ PCI_STATUS_DEVSEL_MEDIUM);
+ pci_set_byte(dev->config + PCI_REVISION_ID, 0x11);
+ pci_set_byte(dev->config + PCI_HEADER_TYPE,
+ pci_get_byte(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;
+ unsigned int i;
- 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);
+ /* PCI configuration space */
+ sysbus_mmio_map(s, 1, special_base + 0x1000000ULL);
+ /* pci_ioport */
+ sysbus_mmio_map(s, 2, special_base + 0x2000000ULL);
+ d = FROM_SYSBUS(APBState, s);
+
+ d->bus = pci_register_bus(&d->busdev.qdev, "pci",
+ pci_apb_set_irq, pci_pbm_map_irq, d,
+ 0, 32);
+ pci_bus_set_mem_base(d->bus, mem_base);
+
+ for (i = 0; i < 32; i++) {
+ sysbus_connect_irq(s, i, pic[i]);
+ }
- 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,
- 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,
- pci_apb_iowrite, s);
-
- 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;
- 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
- d->config[0x0D] = 0x10; // latency_timer
- d->config[0x0E] = 0x00; // header_type
+ pci_create_simple(d->bus, 0, "pbm");
/* 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 s->bus;
+ *bus2 = pci_bridge_init(d->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->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->bus;
}
+
+static void pci_pbm_reset(DeviceState *d)
+{
+ unsigned int i;
+ APBState *s = container_of(d, APBState, busdev.qdev);
+
+ for (i = 0; i < 8; i++) {
+ s->pci_irq_map[i] &= PBM_PCI_IMR_MASK;
+ }
+
+ if (s->nr_resets++ == 0) {
+ /* Power on reset */
+ s->reset_control = POR;
+ }
+}
+
+static int pci_pbm_init_device(SysBusDevice *dev)
+{
+ APBState *s;
+ int pci_config, apb_config, pci_ioport;
+ unsigned int i;
+
+ s = FROM_SYSBUS(APBState, dev);
+ for (i = 0; i < 8; i++) {
+ s->pci_irq_map[i] = (0x1f << 6) | (i << 2);
+ }
+ for (i = 0; i < 32; i++) {
+ sysbus_init_irq(dev, &s->pci_irqs[i]);
+ }
+
+ /* apb_config */
+ apb_config = cpu_register_io_memory(apb_config_read,
+ apb_config_write, s);
+ /* at region 0 */
+ sysbus_init_mmio(dev, 0x10000ULL, apb_config);
+
+ /* PCI configuration space */
+ s->pci_config_handler.read = apb_pci_config_read;
+ s->pci_config_handler.write = apb_pci_config_write;
+ pci_config = cpu_register_io_memory_simple(&s->pci_config_handler);
+ assert(pci_config >= 0);
+ /* at region 1 */
+ sysbus_init_mmio(dev, 0x1000000ULL, pci_config);
+
+ /* pci_ioport */
+ pci_ioport = cpu_register_io_memory(pci_apb_ioread,
+ pci_apb_iowrite, s);
+ /* at region 2 */
+ sysbus_init_mmio(dev, 0x10000ULL, pci_ioport);
+
+ return 0;
+}
+
+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);
+ pci_set_word(d->config + PCI_COMMAND,
+ PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER);
+ pci_set_word(d->config + PCI_STATUS,
+ PCI_STATUS_FAST_BACK | PCI_STATUS_66MHZ |
+ PCI_STATUS_DEVSEL_MEDIUM);
+ pci_config_set_class(d->config, PCI_CLASS_BRIDGE_HOST);
+ pci_set_byte(d->config + PCI_HEADER_TYPE,
+ PCI_HEADER_TYPE_NORMAL);
+ return 0;
+}
+
+static PCIDeviceInfo pbm_pci_host_info = {
+ .qdev.name = "pbm",
+ .qdev.size = sizeof(PCIDevice),
+ .init = pbm_pci_host_init,
+ .header_type = PCI_HEADER_TYPE_BRIDGE,
+};
+
+static SysBusDeviceInfo pbm_host_info = {
+ .qdev.name = "pbm",
+ .qdev.size = sizeof(APBState),
+ .qdev.reset = pci_pbm_reset,
+ .init = pci_pbm_init_device,
+};
+static void pbm_register_devices(void)
+{
+ sysbus_register_withprop(&pbm_host_info);
+ pci_qdev_register(&pbm_pci_host_info);
+}
+
+device_init(pbm_register_devices)
projects / mirror_qemu.git / blobdiff