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authorBlue Swirl <blauwirbel@gmail.com>2012-03-10 20:37:00 +0000
committerBlue Swirl <blauwirbel@gmail.com>2012-03-17 16:30:06 +0000
commit361dea401f529fc136aaeb49c82b2a5bb7faa316 (patch)
tree84fd01e931fbd33f6359e4fe758c087d3f65d551 /hw/apb_pci.c
parent89aaf60dedbe0e6415acfe816e02b538e5c54e68 (diff)
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sparc64: implement PCI and ISA irqs
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>
Diffstat (limited to 'hw/apb_pci.c')
-rw-r--r--hw/apb_pci.c48
1 files changed, 35 insertions, 13 deletions
diff --git a/hw/apb_pci.c b/hw/apb_pci.c
index b10f31e..7e28808 100644
--- a/hw/apb_pci.c
+++ b/hw/apb_pci.c
@@ -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->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->pci_irqs[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",