diff options
| -rw-r--r-- | hw/arm/xlnx-zynqmp.c | 59 | ||||
| -rw-r--r-- | include/hw/arm/xlnx-zynqmp.h | 14 |
2 files changed, 73 insertions, 0 deletions
diff --git a/hw/arm/xlnx-zynqmp.c b/hw/arm/xlnx-zynqmp.c index ec0ebaa..d4c5309 100644 --- a/hw/arm/xlnx-zynqmp.c +++ b/hw/arm/xlnx-zynqmp.c @@ -16,6 +16,23 @@ */ #include "hw/arm/xlnx-zynqmp.h" +#include "exec/address-spaces.h" + +#define GIC_NUM_SPI_INTR 160 + +#define GIC_BASE_ADDR 0xf9000000 +#define GIC_DIST_ADDR 0xf9010000 +#define GIC_CPU_ADDR 0xf9020000 + +typedef struct XlnxZynqMPGICRegion { + int region_index; + uint32_t address; +} XlnxZynqMPGICRegion; + +static const XlnxZynqMPGICRegion xlnx_zynqmp_gic_regions[] = { + { .region_index = 0, .address = GIC_DIST_ADDR, }, + { .region_index = 1, .address = GIC_CPU_ADDR, }, +}; static void xlnx_zynqmp_init(Object *obj) { @@ -28,14 +45,46 @@ static void xlnx_zynqmp_init(Object *obj) object_property_add_child(obj, "cpu[*]", OBJECT(&s->cpu[i]), &error_abort); } + + object_initialize(&s->gic, sizeof(s->gic), TYPE_ARM_GIC); + qdev_set_parent_bus(DEVICE(&s->gic), sysbus_get_default()); } static void xlnx_zynqmp_realize(DeviceState *dev, Error **errp) { XlnxZynqMPState *s = XLNX_ZYNQMP(dev); + MemoryRegion *system_memory = get_system_memory(); uint8_t i; Error *err = NULL; + qdev_prop_set_uint32(DEVICE(&s->gic), "num-irq", GIC_NUM_SPI_INTR + 32); + qdev_prop_set_uint32(DEVICE(&s->gic), "revision", 2); + qdev_prop_set_uint32(DEVICE(&s->gic), "num-cpu", XLNX_ZYNQMP_NUM_CPUS); + object_property_set_bool(OBJECT(&s->gic), true, "realized", &err); + if (err) { + error_propagate((errp), (err)); + return; + } + assert(ARRAY_SIZE(xlnx_zynqmp_gic_regions) == XLNX_ZYNQMP_GIC_REGIONS); + for (i = 0; i < XLNX_ZYNQMP_GIC_REGIONS; i++) { + SysBusDevice *gic = SYS_BUS_DEVICE(&s->gic); + const XlnxZynqMPGICRegion *r = &xlnx_zynqmp_gic_regions[i]; + MemoryRegion *mr = sysbus_mmio_get_region(gic, r->region_index); + uint32_t addr = r->address; + int j; + + sysbus_mmio_map(gic, r->region_index, addr); + + for (j = 0; j < XLNX_ZYNQMP_GIC_ALIASES; j++) { + MemoryRegion *alias = &s->gic_mr[i][j]; + + addr += XLNX_ZYNQMP_GIC_REGION_SIZE; + memory_region_init_alias(alias, OBJECT(s), "zynqmp-gic-alias", mr, + 0, XLNX_ZYNQMP_GIC_REGION_SIZE); + memory_region_add_subregion(system_memory, addr, alias); + } + } + for (i = 0; i < XLNX_ZYNQMP_NUM_CPUS; i++) { object_property_set_int(OBJECT(&s->cpu[i]), QEMU_PSCI_CONDUIT_SMC, "psci-conduit", &error_abort); @@ -45,11 +94,21 @@ static void xlnx_zynqmp_realize(DeviceState *dev, Error **errp) "start-powered-off", &error_abort); } + object_property_set_int(OBJECT(&s->cpu[i]), GIC_BASE_ADDR, + "reset-cbar", &err); + if (err) { + error_propagate((errp), (err)); + return; + } + object_property_set_bool(OBJECT(&s->cpu[i]), true, "realized", &err); if (err) { error_propagate((errp), (err)); return; } + + sysbus_connect_irq(SYS_BUS_DEVICE(&s->gic), i, + qdev_get_gpio_in(DEVICE(&s->cpu[i]), ARM_CPU_IRQ)); } } diff --git a/include/hw/arm/xlnx-zynqmp.h b/include/hw/arm/xlnx-zynqmp.h index 62f6b6f..719bc8b 100644 --- a/include/hw/arm/xlnx-zynqmp.h +++ b/include/hw/arm/xlnx-zynqmp.h @@ -19,6 +19,7 @@ #include "qemu-common.h" #include "hw/arm/arm.h" +#include "hw/intc/arm_gic.h" #define TYPE_XLNX_ZYNQMP "xlnx,zynqmp" #define XLNX_ZYNQMP(obj) OBJECT_CHECK(XlnxZynqMPState, (obj), \ @@ -26,12 +27,25 @@ #define XLNX_ZYNQMP_NUM_CPUS 4 +#define XLNX_ZYNQMP_GIC_REGIONS 2 + +/* ZynqMP maps the ARM GIC regions (GICC, GICD ...) at consecutive 64k offsets + * and under-decodes the 64k region. This mirrors the 4k regions to every 4k + * aligned address in the 64k region. To implement each GIC region needs a + * number of memory region aliases. + */ + +#define XLNX_ZYNQMP_GIC_REGION_SIZE 0x4000 +#define XLNX_ZYNQMP_GIC_ALIASES (0x10000 / XLNX_ZYNQMP_GIC_REGION_SIZE - 1) + typedef struct XlnxZynqMPState { /*< private >*/ DeviceState parent_obj; /*< public >*/ ARMCPU cpu[XLNX_ZYNQMP_NUM_CPUS]; + GICState gic; + MemoryRegion gic_mr[XLNX_ZYNQMP_GIC_REGIONS][XLNX_ZYNQMP_GIC_ALIASES]; } XlnxZynqMPState; #define XLNX_ZYNQMP_H |
