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| author | Song Gao <gaosong@loongson.cn> | 2024-04-26 17:15:44 +0800 |
|---|---|---|
| committer | Song Gao <gaosong@loongson.cn> | 2024-04-29 10:25:56 +0800 |
| commit | a0663efd81e6252b12ea716d13db10fdd022435b (patch) | |
| tree | bb2f670704acb4921d74b45f5b8e870c1bf88cb6 | |
| parent | b11f9814526b833b3a052be2559457b1affad7f5 (diff) | |
| download | qemu-a0663efd81e6252b12ea716d13db10fdd022435b.zip qemu-a0663efd81e6252b12ea716d13db10fdd022435b.tar.gz qemu-a0663efd81e6252b12ea716d13db10fdd022435b.tar.bz2 | |
hw/loongarch: fdt adds cpu interrupt controller node
fdt adds cpu interrupt controller node,
we use 'loongson,cpu-interrupt-controller'.
See:
https://github.com/torvalds/linux/blob/v6.7/drivers/irqchip/irq-loongarch-cpu.c
https://lore.kernel.org/r/20221114113824.1880-2-liupeibao@loongson.cn
Signed-off-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Bibo Mao <maobibo@loongson.cn>
Message-Id: <20240426091551.2397867-11-gaosong@loongson.cn>
| -rw-r--r-- | hw/loongarch/virt.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/hw/loongarch/virt.c b/hw/loongarch/virt.c index 032f5f2..88cdcb6 100644 --- a/hw/loongarch/virt.c +++ b/hw/loongarch/virt.c @@ -106,6 +106,23 @@ static void virt_flash_map(LoongArchMachineState *lams, virt_flash_map1(flash1, VIRT_FLASH1_BASE, VIRT_FLASH1_SIZE, sysmem); } +static void fdt_add_cpuic_node(LoongArchMachineState *lams, + uint32_t *cpuintc_phandle) +{ + MachineState *ms = MACHINE(lams); + char *nodename; + + *cpuintc_phandle = qemu_fdt_alloc_phandle(ms->fdt); + nodename = g_strdup_printf("/cpuic"); + qemu_fdt_add_subnode(ms->fdt, nodename); + qemu_fdt_setprop_cell(ms->fdt, nodename, "phandle", *cpuintc_phandle); + qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", + "loongson,cpu-interrupt-controller"); + qemu_fdt_setprop(ms->fdt, nodename, "interrupt-controller", NULL, 0); + qemu_fdt_setprop_cell(ms->fdt, nodename, "#interrupt-cells", 1); + g_free(nodename); +} + static void fdt_add_flash_node(LoongArchMachineState *lams) { MachineState *ms = MACHINE(lams); @@ -528,6 +545,7 @@ static void loongarch_irq_init(LoongArchMachineState *lams) CPULoongArchState *env; CPUState *cpu_state; int cpu, pin, i, start, num; + uint32_t cpuintc_phandle; /* * The connection of interrupts: @@ -562,6 +580,9 @@ static void loongarch_irq_init(LoongArchMachineState *lams) memory_region_add_subregion(&lams->system_iocsr, MAIL_SEND_ADDR, sysbus_mmio_get_region(SYS_BUS_DEVICE(ipi), 1)); + /* Add cpu interrupt-controller */ + fdt_add_cpuic_node(lams, &cpuintc_phandle); + for (cpu = 0; cpu < ms->smp.cpus; cpu++) { cpu_state = qemu_get_cpu(cpu); cpudev = DEVICE(cpu_state); |