diff options
| -rw-r--r-- | hw/mips/cps.c | 32 | ||||
| -rw-r--r-- | include/hw/mips/cps.h | 2 |
2 files changed, 34 insertions, 0 deletions
diff --git a/hw/mips/cps.c b/hw/mips/cps.c index d46547cd78..1bafbbb278 100644 --- a/hw/mips/cps.c +++ b/hw/mips/cps.c @@ -22,6 +22,7 @@ #include "hw/mips/cps.h" #include "hw/mips/mips.h" #include "hw/mips/cpudevs.h" +#include "sysemu/kvm.h" qemu_irq get_cps_irq(MIPSCPSState *s, int pin_number) { @@ -56,6 +57,14 @@ static void main_cpu_reset(void *opaque) cs->halted = 1; } +static bool cpu_mips_itu_supported(CPUMIPSState *env) +{ + bool is_mt = (env->CP0_Config5 & (1 << CP0C5_VP)) || + (env->CP0_Config3 & (1 << CP0C3_MT)); + + return is_mt && !kvm_enabled(); +} + static void mips_cps_realize(DeviceState *dev, Error **errp) { MIPSCPSState *s = MIPS_CPS(dev); @@ -64,6 +73,7 @@ static void mips_cps_realize(DeviceState *dev, Error **errp) int i; Error *err = NULL; target_ulong gcr_base; + bool itu_present = false; for (i = 0; i < s->num_vp; i++) { cpu = cpu_mips_init(s->cpu_model); @@ -76,12 +86,34 @@ static void mips_cps_realize(DeviceState *dev, Error **errp) /* Init internal devices */ cpu_mips_irq_init_cpu(env); cpu_mips_clock_init(env); + if (cpu_mips_itu_supported(env)) { + itu_present = true; + /* Attach ITC Tag to the VP */ + env->itc_tag = mips_itu_get_tag_region(&s->itu); + } qemu_register_reset(main_cpu_reset, cpu); } cpu = MIPS_CPU(first_cpu); env = &cpu->env; + /* Inter-Thread Communication Unit */ + if (itu_present) { + object_initialize(&s->itu, sizeof(s->itu), TYPE_MIPS_ITU); + qdev_set_parent_bus(DEVICE(&s->itu), sysbus_get_default()); + + object_property_set_int(OBJECT(&s->itu), 16, "num-fifo", &err); + object_property_set_int(OBJECT(&s->itu), 16, "num-semaphores", &err); + object_property_set_bool(OBJECT(&s->itu), true, "realized", &err); + if (err != NULL) { + error_propagate(errp, err); + return; + } + + memory_region_add_subregion(&s->container, 0, + sysbus_mmio_get_region(SYS_BUS_DEVICE(&s->itu), 0)); + } + /* Cluster Power Controller */ object_initialize(&s->cpc, sizeof(s->cpc), TYPE_MIPS_CPC); qdev_set_parent_bus(DEVICE(&s->cpc), sysbus_get_default()); diff --git a/include/hw/mips/cps.h b/include/hw/mips/cps.h index 88be7653d7..4dbae9c8c9 100644 --- a/include/hw/mips/cps.h +++ b/include/hw/mips/cps.h @@ -23,6 +23,7 @@ #include "hw/sysbus.h" #include "hw/misc/mips_cmgcr.h" #include "hw/misc/mips_cpc.h" +#include "hw/misc/mips_itu.h" #define TYPE_MIPS_CPS "mips-cps" #define MIPS_CPS(obj) OBJECT_CHECK(MIPSCPSState, (obj), TYPE_MIPS_CPS) @@ -37,6 +38,7 @@ typedef struct MIPSCPSState { MemoryRegion container; MIPSGCRState gcr; MIPSCPCState cpc; + MIPSITUState itu; } MIPSCPSState; qemu_irq get_cps_irq(MIPSCPSState *cps, int pin_number); |