aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--hw/pci-host/prep.c85
-rw-r--r--hw/ppc/prep.c94
2 files changed, 88 insertions, 91 deletions
diff --git a/hw/pci-host/prep.c b/hw/pci-host/prep.c
index 84d50ca22a..629735eeda 100644
--- a/hw/pci-host/prep.c
+++ b/hw/pci-host/prep.c
@@ -54,8 +54,12 @@ typedef struct PRePPCIState {
qemu_irq irq[PCI_NUM_PINS];
PCIBus pci_bus;
+ AddressSpace pci_io_as;
+ MemoryRegion pci_io_non_contiguous;
MemoryRegion pci_intack;
RavenPCIState pci_dev;
+
+ int contiguous_map;
} PREPPCIState;
#define BIOS_SIZE (1024 * 1024)
@@ -107,6 +111,71 @@ static const MemoryRegionOps PPC_intack_ops = {
},
};
+static inline hwaddr raven_io_address(PREPPCIState *s,
+ hwaddr addr)
+{
+ if (s->contiguous_map == 0) {
+ /* 64 KB contiguous space for IOs */
+ addr &= 0xFFFF;
+ } else {
+ /* 8 MB non-contiguous space for IOs */
+ addr = (addr & 0x1F) | ((addr & 0x007FFF000) >> 7);
+ }
+
+ /* FIXME: handle endianness switch */
+
+ return addr;
+}
+
+static uint64_t raven_io_read(void *opaque, hwaddr addr,
+ unsigned int size)
+{
+ PREPPCIState *s = opaque;
+ uint8_t buf[4];
+
+ addr = raven_io_address(s, addr);
+ address_space_read(&s->pci_io_as, addr, buf, size);
+
+ if (size == 1) {
+ return buf[0];
+ } else if (size == 2) {
+ return lduw_p(buf);
+ } else if (size == 4) {
+ return ldl_p(buf);
+ } else {
+ g_assert_not_reached();
+ }
+}
+
+static void raven_io_write(void *opaque, hwaddr addr,
+ uint64_t val, unsigned int size)
+{
+ PREPPCIState *s = opaque;
+ uint8_t buf[4];
+
+ addr = raven_io_address(s, addr);
+
+ if (size == 1) {
+ buf[0] = val;
+ } else if (size == 2) {
+ stw_p(buf, val);
+ } else if (size == 4) {
+ stl_p(buf, val);
+ } else {
+ g_assert_not_reached();
+ }
+
+ address_space_write(&s->pci_io_as, addr, buf, size);
+}
+
+static const MemoryRegionOps raven_io_ops = {
+ .read = raven_io_read,
+ .write = raven_io_write,
+ .endianness = DEVICE_LITTLE_ENDIAN,
+ .impl.max_access_size = 4,
+ .valid.unaligned = true,
+};
+
static int prep_map_irq(PCIDevice *pci_dev, int irq_num)
{
return (irq_num + (pci_dev->devfn >> 3)) & 1;
@@ -119,6 +188,13 @@ static void prep_set_irq(void *opaque, int irq_num, int level)
qemu_set_irq(pic[irq_num] , level);
}
+static void raven_change_gpio(void *opaque, int n, int level)
+{
+ PREPPCIState *s = opaque;
+
+ s->contiguous_map = level;
+}
+
static void raven_pcihost_realizefn(DeviceState *d, Error **errp)
{
SysBusDevice *dev = SYS_BUS_DEVICE(d);
@@ -133,6 +209,8 @@ static void raven_pcihost_realizefn(DeviceState *d, Error **errp)
sysbus_init_irq(dev, &s->irq[i]);
}
+ qdev_init_gpio_in(d, raven_change_gpio, 1);
+
pci_bus_irqs(&s->pci_bus, prep_set_irq, prep_map_irq, s->irq, PCI_NUM_PINS);
memory_region_init_io(&h->conf_mem, OBJECT(h), &pci_host_conf_be_ops, s,
@@ -164,6 +242,13 @@ static void raven_pcihost_initfn(Object *obj)
MemoryRegion *address_space_io = get_system_io();
DeviceState *pci_dev;
+ memory_region_init_io(&s->pci_io_non_contiguous, obj, &raven_io_ops, s,
+ "pci-io-non-contiguous", 0x00800000);
+ address_space_init(&s->pci_io_as, get_system_io(), "raven-io");
+
+ /* CPU address space */
+ memory_region_add_subregion_overlap(address_space_mem, 0x80000000,
+ &s->pci_io_non_contiguous, 1);
pci_bus_new_inplace(&s->pci_bus, sizeof(s->pci_bus), DEVICE(obj), NULL,
address_space_mem, address_space_io, 0, TYPE_PCI_BUS);
h->bus = &s->pci_bus;
diff --git a/hw/ppc/prep.c b/hw/ppc/prep.c
index 81e13cb4ac..035b5b2f86 100644
--- a/hw/ppc/prep.c
+++ b/hw/ppc/prep.c
@@ -185,6 +185,7 @@ typedef struct sysctrl_t {
uint8_t state;
uint8_t syscontrol;
int contiguous_map;
+ qemu_irq contiguous_map_irq;
int endian;
} sysctrl_t;
@@ -253,6 +254,7 @@ static void PREP_io_800_writeb (void *opaque, uint32_t addr, uint32_t val)
case 0x0850:
/* I/O map type register */
sysctrl->contiguous_map = val & 0x01;
+ qemu_set_irq(sysctrl->contiguous_map_irq, sysctrl->contiguous_map);
break;
default:
printf("ERROR: unaffected IO port write: %04" PRIx32
@@ -327,91 +329,6 @@ static uint32_t PREP_io_800_readb (void *opaque, uint32_t addr)
return retval;
}
-static inline hwaddr prep_IO_address(sysctrl_t *sysctrl,
- hwaddr addr)
-{
- if (sysctrl->contiguous_map == 0) {
- /* 64 KB contiguous space for IOs */
- addr &= 0xFFFF;
- } else {
- /* 8 MB non-contiguous space for IOs */
- addr = (addr & 0x1F) | ((addr & 0x007FFF000) >> 7);
- }
-
- return addr;
-}
-
-static void PPC_prep_io_writeb (void *opaque, hwaddr addr,
- uint32_t value)
-{
- sysctrl_t *sysctrl = opaque;
-
- addr = prep_IO_address(sysctrl, addr);
- cpu_outb(addr, value);
-}
-
-static uint32_t PPC_prep_io_readb (void *opaque, hwaddr addr)
-{
- sysctrl_t *sysctrl = opaque;
- uint32_t ret;
-
- addr = prep_IO_address(sysctrl, addr);
- ret = cpu_inb(addr);
-
- return ret;
-}
-
-static void PPC_prep_io_writew (void *opaque, hwaddr addr,
- uint32_t value)
-{
- sysctrl_t *sysctrl = opaque;
-
- addr = prep_IO_address(sysctrl, addr);
- PPC_IO_DPRINTF("0x" TARGET_FMT_plx " => 0x%08" PRIx32 "\n", addr, value);
- cpu_outw(addr, value);
-}
-
-static uint32_t PPC_prep_io_readw (void *opaque, hwaddr addr)
-{
- sysctrl_t *sysctrl = opaque;
- uint32_t ret;
-
- addr = prep_IO_address(sysctrl, addr);
- ret = cpu_inw(addr);
- PPC_IO_DPRINTF("0x" TARGET_FMT_plx " <= 0x%08" PRIx32 "\n", addr, ret);
-
- return ret;
-}
-
-static void PPC_prep_io_writel (void *opaque, hwaddr addr,
- uint32_t value)
-{
- sysctrl_t *sysctrl = opaque;
-
- addr = prep_IO_address(sysctrl, addr);
- PPC_IO_DPRINTF("0x" TARGET_FMT_plx " => 0x%08" PRIx32 "\n", addr, value);
- cpu_outl(addr, value);
-}
-
-static uint32_t PPC_prep_io_readl (void *opaque, hwaddr addr)
-{
- sysctrl_t *sysctrl = opaque;
- uint32_t ret;
-
- addr = prep_IO_address(sysctrl, addr);
- ret = cpu_inl(addr);
- PPC_IO_DPRINTF("0x" TARGET_FMT_plx " <= 0x%08" PRIx32 "\n", addr, ret);
-
- return ret;
-}
-
-static const MemoryRegionOps PPC_prep_io_ops = {
- .old_mmio = {
- .read = { PPC_prep_io_readb, PPC_prep_io_readw, PPC_prep_io_readl },
- .write = { PPC_prep_io_writeb, PPC_prep_io_writew, PPC_prep_io_writel },
- },
- .endianness = DEVICE_NATIVE_ENDIAN,
-};
#define NVRAM_SIZE 0x2000
@@ -458,7 +375,6 @@ static void ppc_prep_init(QEMUMachineInitArgs *args)
CPUPPCState *env = NULL;
nvram_t nvram;
M48t59State *m48t59;
- MemoryRegion *PPC_io_memory = g_new(MemoryRegion, 1);
PortioList *port_list = g_new(PortioList, 1);
#if 0
MemoryRegion *xcsr = g_new(MemoryRegion, 1);
@@ -567,6 +483,7 @@ static void ppc_prep_init(QEMUMachineInitArgs *args)
fprintf(stderr, "Couldn't create PCI host controller.\n");
exit(1);
}
+ sysctrl->contiguous_map_irq = qdev_get_gpio_in(dev, 0);
/* PCI -> ISA bridge */
pci = pci_create_simple(pci_bus, PCI_DEVFN(1, 0), "i82378");
@@ -587,11 +504,6 @@ static void ppc_prep_init(QEMUMachineInitArgs *args)
qdev_prop_set_uint8(dev, "config", 13); /* fdc, ser0, ser1, par0 */
qdev_init_nofail(dev);
- /* Register 8 MB of ISA IO space (needed for non-contiguous map) */
- memory_region_init_io(PPC_io_memory, NULL, &PPC_prep_io_ops, sysctrl,
- "ppc-io", 0x00800000);
- memory_region_add_subregion(sysmem, 0x80000000, PPC_io_memory);
-
/* init basic PC hardware */
pci_vga_init(pci_bus);
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-30 03:08:28 +0000