@@ -50,35 +50,40 @@ static uint64_t loongarch_ipi_readl(void *opaque, hwaddr addr, unsigned size)
return ret;
}
-static int get_ipi_data(target_ulong val)
+static void send_ipi_data(CPULoongArchState *env, target_ulong val, target_ulong addr)
{
int i, mask, data;
- data = val >> 32;
- mask = (val >> 27) & 0xf;
-
+ data = address_space_ldl(&env->address_space_iocsr, addr,
+ MEMTXATTRS_UNSPECIFIED, NULL);
+ mask = 0;
for (i = 0; i < 4; i++) {
- if ((mask >> i) & 1) {
- data &= ~(0xff << (i * 8));
+ /* bit 27 - 30 is mask for byte write */
+ if (val & (0x1UL << (27 + i))) {
+ mask |= 0xff << (i * 8);
}
}
- return data;
+
+ data &= mask;
+ data |= (val >> 32) & ~mask;
+ address_space_stl(&env->address_space_iocsr, addr,
+ data, MEMTXATTRS_UNSPECIFIED, NULL);
}
static void ipi_send(uint64_t val)
{
int cpuid, data;
CPULoongArchState *env;
+ CPUState *cs;
+ LoongArchCPU *cpu;
cpuid = (val >> 16) & 0x3ff;
/* IPI status vector */
data = 1 << (val & 0x1f);
- qemu_mutex_lock_iothread();
- CPUState *cs = qemu_get_cpu(cpuid);
- LoongArchCPU *cpu = LOONGARCH_CPU(cs);
+ cs = qemu_get_cpu(cpuid);
+ cpu = LOONGARCH_CPU(cs);
env = &cpu->env;
loongarch_cpu_set_irq(cpu, IRQ_IPI, 1);
- qemu_mutex_unlock_iothread();
address_space_stl(&env->address_space_iocsr, 0x1008,
data, MEMTXATTRS_UNSPECIFIED, NULL);
@@ -86,23 +91,23 @@ static void ipi_send(uint64_t val)
static void mail_send(uint64_t val)
{
- int cpuid, data;
+ int cpuid;
hwaddr addr;
CPULoongArchState *env;
+ CPUState *cs;
+ LoongArchCPU *cpu;
cpuid = (val >> 16) & 0x3ff;
addr = 0x1020 + (val & 0x1c);
- CPUState *cs = qemu_get_cpu(cpuid);
- LoongArchCPU *cpu = LOONGARCH_CPU(cs);
+ cs = qemu_get_cpu(cpuid);
+ cpu = LOONGARCH_CPU(cs);
env = &cpu->env;
- data = get_ipi_data(val);
- address_space_stl(&env->address_space_iocsr, addr,
- data, MEMTXATTRS_UNSPECIFIED, NULL);
+ send_ipi_data(env, val, addr);
}
static void any_send(uint64_t val)
{
- int cpuid, data;
+ int cpuid;
hwaddr addr;
CPULoongArchState *env;
@@ -111,9 +116,7 @@ static void any_send(uint64_t val)
CPUState *cs = qemu_get_cpu(cpuid);
LoongArchCPU *cpu = LOONGARCH_CPU(cs);
env = &cpu->env;
- data = get_ipi_data(val);
- address_space_stl(&env->address_space_iocsr, addr,
- data, MEMTXATTRS_UNSPECIFIED, NULL);
+ send_ipi_data(env, val, addr);
}
static void loongarch_ipi_writel(void *opaque, hwaddr addr, uint64_t val,
@@ -150,12 +153,6 @@ static void loongarch_ipi_writel(void *opaque, hwaddr addr, uint64_t val,
case IOCSR_IPI_SEND:
ipi_send(val);
break;
- case IOCSR_MAIL_SEND:
- mail_send(val);
- break;
- case IOCSR_ANY_SEND:
- any_send(val);
- break;
default:
qemu_log_mask(LOG_UNIMP, "invalid write: %x", (uint32_t)addr);
break;
@@ -172,6 +169,32 @@ static const MemoryRegionOps loongarch_ipi_ops = {
.endianness = DEVICE_LITTLE_ENDIAN,
};
+/* mail send and any send only support writeq */
+static void loongarch_ipi_writeq(void *opaque, hwaddr addr, uint64_t val,
+ unsigned size)
+{
+ addr &= 0xfff;
+ switch (addr) {
+ case MAIL_SEND_OFFSET:
+ mail_send(val);
+ break;
+ case ANY_SEND_OFFSET:
+ any_send(val);
+ break;
+ default:
+ break;
+ }
+}
+
+static const MemoryRegionOps loongarch_ipi64_ops = {
+ .write = loongarch_ipi_writeq,
+ .impl.min_access_size = 8,
+ .impl.max_access_size = 8,
+ .valid.min_access_size = 4,
+ .valid.max_access_size = 8,
+ .endianness = DEVICE_LITTLE_ENDIAN,
+};
+
static void loongarch_ipi_init(Object *obj)
{
int cpu;
@@ -185,10 +208,16 @@ static void loongarch_ipi_init(Object *obj)
return;
}
lams = LOONGARCH_MACHINE(machine);
+
for (cpu = 0; cpu < MAX_IPI_CORE_NUM; cpu++) {
memory_region_init_io(&s->ipi_iocsr_mem[cpu], obj, &loongarch_ipi_ops,
- &lams->ipi_core[cpu], "loongarch_ipi_iocsr", 0x100);
+ &lams->ipi_core[cpu], "loongarch_ipi_iocsr", 0x48);
sysbus_init_mmio(sbd, &s->ipi_iocsr_mem[cpu]);
+
+ memory_region_init_io(&s->ipi64_iocsr_mem[cpu], obj, &loongarch_ipi64_ops,
+ &lams->ipi_core[cpu], "loongarch_ipi64_iocsr", 0x118);
+ sysbus_init_mmio(sbd, &s->ipi64_iocsr_mem[cpu]);
+
qdev_init_gpio_out(DEVICE(obj), &lams->ipi_core[cpu].irq, 1);
}
}
@@ -455,7 +455,10 @@ static void loongarch_irq_init(LoongArchMachineState *lams)
/* IPI iocsr memory region */
memory_region_add_subregion(&env->system_iocsr, SMP_IPI_MAILBOX,
sysbus_mmio_get_region(SYS_BUS_DEVICE(ipi),
- cpu));
+ cpu * 2));
+ memory_region_add_subregion(&env->system_iocsr, MAIL_SEND_ADDR,
+ sysbus_mmio_get_region(SYS_BUS_DEVICE(ipi),
+ cpu * 2 + 1));
/* extioi iocsr memory region */
memory_region_add_subregion(&env->system_iocsr, APIC_BASE,
sysbus_mmio_get_region(SYS_BUS_DEVICE(extioi),
@@ -23,9 +23,9 @@
#define IOCSR_IPI_SEND 0x40
#define IOCSR_MAIL_SEND 0x48
#define IOCSR_ANY_SEND 0x158
-
-/* IPI system memory address */
-#define IPI_SYSTEM_MEM 0x1fe01000
+#define MAIL_SEND_ADDR (SMP_IPI_MAILBOX + IOCSR_MAIL_SEND)
+#define MAIL_SEND_OFFSET 0
+#define ANY_SEND_OFFSET (IOCSR_ANY_SEND - IOCSR_MAIL_SEND)
#define MAX_IPI_CORE_NUM 4
#define MAX_IPI_MBX_NUM 4
@@ -46,7 +46,7 @@ typedef struct IPICore {
struct LoongArchIPI {
SysBusDevice parent_obj;
MemoryRegion ipi_iocsr_mem[MAX_IPI_CORE_NUM];
- MemoryRegion ipi_system_mem[MAX_IPI_CORE_NUM];
+ MemoryRegion ipi64_iocsr_mem[MAX_IPI_CORE_NUM];
};
#endif
Signed-off-by: Xiaojuan Yang <yangxiaojuan@loongson.cn> --- hw/intc/loongarch_ipi.c | 85 ++++++++++++++++++++++----------- hw/loongarch/loongson3.c | 5 +- include/hw/intc/loongarch_ipi.h | 8 ++-- 3 files changed, 65 insertions(+), 33 deletions(-)