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sparc64: implement PCI and ISA irqs

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Generate correct trap for external interrupts. Map PCI and ISA IRQs to
RIC/UltraSPARC-IIi interrupt vectors.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Blue Swirl 2012-03-10 20:37:00 +00:00
parent 89aaf60ded
commit 361dea401f
5 changed files with 93 additions and 38 deletions
Download patch file Download diff file Expand all files Collapse all files

48
hw/apb_pci.c
View file

@ -66,6 +66,8 @@ do { printf("APB: " fmt , ## __VA_ARGS__); } while (0)
#define RESET_WCMASK 0x98000000
#define RESET_WMASK 0x60000000
#define MAX_IVEC 0x30
typedef struct APBState {
SysBusDevice busdev;
PCIBus *bus;
@ -77,7 +79,8 @@ typedef struct APBState {
uint32_t pci_control[16];
uint32_t pci_irq_map[8];
uint32_t obio_irq_map[32];
qemu_irq pci_irqs[32];
qemu_irq *pbm_irqs;
qemu_irq *ivec_irqs;
uint32_t reset_control;
unsigned int nr_resets;
} APBState;
@ -87,7 +90,7 @@ static void apb_config_writel (void *opaque, target_phys_addr_t addr,
{
APBState *s = opaque;
APB_DPRINTF("%s: addr " TARGET_FMT_lx " val %x\n", __func__, addr, val);
APB_DPRINTF("%s: addr " TARGET_FMT_lx " val %" PRIx64 "\n", __func__, addr, val);
switch (addr & 0xffff) {
case 0x30 ... 0x4f: /* DMA error registers */
@ -104,6 +107,12 @@ static void apb_config_writel (void *opaque, target_phys_addr_t addr,
s->pci_irq_map[(addr & 0x3f) >> 3] |= val & ~PBM_PCI_IMR_MASK;
}
break;
case 0x1000 ... 0x1080: /* OBIO interrupt control */
if (addr & 4) {
s->obio_irq_map[(addr & 0xff) >> 3] &= PBM_PCI_IMR_MASK;
s->obio_irq_map[(addr & 0xff) >> 3] |= val & ~PBM_PCI_IMR_MASK;
}
break;
case 0x2000 ... 0x202f: /* PCI control */
s->pci_control[(addr & 0x3f) >> 2] = val;
break;
@ -154,6 +163,13 @@ static uint64_t apb_config_readl (void *opaque,
val = 0;
}
break;
case 0x1000 ... 0x1080: /* OBIO interrupt control */
if (addr & 4) {
val = s->obio_irq_map[(addr & 0xff) >> 3];
} else {
val = 0;
}
break;
case 0x2000 ... 0x202f: /* PCI control */
val = s->pci_control[(addr & 0x3f) >> 2];
break;
@ -190,7 +206,7 @@ static void apb_pci_config_write(void *opaque, target_phys_addr_t addr,
APBState *s = opaque;
val = qemu_bswap_len(val, size);
APB_DPRINTF("%s: addr " TARGET_FMT_lx " val %x\n", __func__, addr, val);
APB_DPRINTF("%s: addr " TARGET_FMT_lx " val %" PRIx64 "\n", __func__, addr, val);
pci_data_write(s->bus, addr, val, size);
}
@ -280,10 +296,19 @@ static void pci_apb_set_irq(void *opaque, int irq_num, int 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);
qemu_set_irq(s->ivec_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]);
qemu_irq_lower(s->ivec_irqs[irq_num]);
}
} else {
/* OBIO IRQ map onto the next 16 INO. */
if (s->obio_irq_map[irq_num - 32] & PBM_PCI_IMR_ENABLED) {
APB_DPRINTF("%s: set irq %d level %d\n", __func__, irq_num, level);
qemu_set_irq(s->ivec_irqs[irq_num], level);
} else {
APB_DPRINTF("%s: not enabled: lower irq %d\n", __func__, irq_num);
qemu_irq_lower(s->ivec_irqs[irq_num]);
}
}
}
@ -316,12 +341,12 @@ static int apb_pci_bridge_initfn(PCIDevice *dev)
PCIBus *pci_apb_init(target_phys_addr_t special_base,
target_phys_addr_t mem_base,
qemu_irq *pic, PCIBus **bus2, PCIBus **bus3)
qemu_irq *ivec_irqs, PCIBus **bus2, PCIBus **bus3,
qemu_irq **pbm_irqs)
{
DeviceState *dev;
SysBusDevice *s;
APBState *d;
unsigned int i;
PCIDevice *pci_dev;
PCIBridge *br;
@ -346,9 +371,8 @@ PCIBus *pci_apb_init(target_phys_addr_t special_base,
get_system_io(),
0, 32);
for (i = 0; i < 32; i++) {
sysbus_connect_irq(s, i, pic[i]);
}
*pbm_irqs = d->pbm_irqs;
d->ivec_irqs = ivec_irqs;
pci_create_simple(d->bus, 0, "pbm-pci");
@ -402,9 +426,7 @@ static int pci_pbm_init_device(SysBusDevice *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]);
}
s->pbm_irqs = qemu_allocate_irqs(pci_apb_set_irq, s, MAX_IVEC);
/* apb_config */
memory_region_init_io(&s->apb_config, &apb_config_ops, s, "apb-config",