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| author | Song Gao <gaosong@loongson.cn> | 2024-04-26 17:15:46 +0800 |
|---|---|---|
| committer | Song Gao <gaosong@loongson.cn> | 2024-04-29 10:25:56 +0800 |
| commit | 2904f50a8119a7a3adee68df7baa18c073892061 (patch) | |
| tree | d8ed9dc83dd9fbd3623f19b8c5881bb19a7892ba | |
| parent | 975a5afe376c192b1e5d5e3eff435ac8188fe41c (diff) | |
| download | qemu-2904f50a8119a7a3adee68df7baa18c073892061.zip qemu-2904f50a8119a7a3adee68df7baa18c073892061.tar.gz qemu-2904f50a8119a7a3adee68df7baa18c073892061.tar.bz2 | |
hw/loongarch: fdt adds pch_pic Controller
fdt adds pch pic controller, we use 'loongson,pch-pic-1.0'
See:
https://github.com/torvalds/linux/blob/v6.7/drivers/irqchip/irq-loongson-pch-pic.c
https://lore.kernel.org/r/20200528152757.1028711-4-jiaxun.yang@flygoat.com
Signed-off-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Bibo Mao <maobibo@loongson.cn>
Message-Id: <20240426091551.2397867-13-gaosong@loongson.cn>
| -rw-r--r-- | hw/loongarch/virt.c | 30 | ||||
| -rw-r--r-- | include/hw/pci-host/ls7a.h | 1 |
2 files changed, 30 insertions, 1 deletions
diff --git a/hw/loongarch/virt.c b/hw/loongarch/virt.c index 094b9d2..5bef161 100644 --- a/hw/loongarch/virt.c +++ b/hw/loongarch/virt.c @@ -148,6 +148,31 @@ static void fdt_add_eiointc_node(LoongArchMachineState *lams, g_free(nodename); } +static void fdt_add_pch_pic_node(LoongArchMachineState *lams, + uint32_t *eiointc_phandle, + uint32_t *pch_pic_phandle) +{ + MachineState *ms = MACHINE(lams); + char *nodename; + hwaddr pch_pic_base = VIRT_PCH_REG_BASE; + hwaddr pch_pic_size = VIRT_PCH_REG_SIZE; + + *pch_pic_phandle = qemu_fdt_alloc_phandle(ms->fdt); + nodename = g_strdup_printf("/platic@%" PRIx64, pch_pic_base); + qemu_fdt_add_subnode(ms->fdt, nodename); + qemu_fdt_setprop_cell(ms->fdt, nodename, "phandle", *pch_pic_phandle); + qemu_fdt_setprop_string(ms->fdt, nodename, "compatible", + "loongson,pch-pic-1.0"); + qemu_fdt_setprop_cells(ms->fdt, nodename, "reg", 0, + pch_pic_base, 0, pch_pic_size); + qemu_fdt_setprop(ms->fdt, nodename, "interrupt-controller", NULL, 0); + qemu_fdt_setprop_cell(ms->fdt, nodename, "#interrupt-cells", 2); + qemu_fdt_setprop_cell(ms->fdt, nodename, "interrupt-parent", + *eiointc_phandle); + qemu_fdt_setprop_cell(ms->fdt, nodename, "loongson,pic-base-vec", 0); + g_free(nodename); +} + static void fdt_add_flash_node(LoongArchMachineState *lams) { MachineState *ms = MACHINE(lams); @@ -570,7 +595,7 @@ static void loongarch_irq_init(LoongArchMachineState *lams) CPULoongArchState *env; CPUState *cpu_state; int cpu, pin, i, start, num; - uint32_t cpuintc_phandle, eiointc_phandle; + uint32_t cpuintc_phandle, eiointc_phandle, pch_pic_phandle; /* * The connection of interrupts: @@ -661,6 +686,9 @@ static void loongarch_irq_init(LoongArchMachineState *lams) qdev_connect_gpio_out(DEVICE(d), i, qdev_get_gpio_in(extioi, i)); } + /* Add PCH PIC node */ + fdt_add_pch_pic_node(lams, &eiointc_phandle, &pch_pic_phandle); + pch_msi = qdev_new(TYPE_LOONGARCH_PCH_MSI); start = num; num = EXTIOI_IRQS - start; diff --git a/include/hw/pci-host/ls7a.h b/include/hw/pci-host/ls7a.h index e753449..fe260f0 100644 --- a/include/hw/pci-host/ls7a.h +++ b/include/hw/pci-host/ls7a.h @@ -24,6 +24,7 @@ #define VIRT_PCH_REG_BASE 0x10000000UL #define VIRT_IOAPIC_REG_BASE (VIRT_PCH_REG_BASE) #define VIRT_PCH_MSI_ADDR_LOW 0x2FF00000UL +#define VIRT_PCH_REG_SIZE 0x400 /* * GSI_BASE is hard-coded with 64 in linux kernel, else kernel fails to boot |