mirrors/qemu
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

hw/loongarch: Add interrupt information to FDT table

Browse Source 
Add interrupt information to FDT table, such as interrupt
controller info, compatiable info, etc.

Signed-off-by: Xiaojuan Yang <yangxiaojuan@loongson.cn>
Acked-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20220908094623.73051-4-yangxiaojuan@loongson.cn>
Signed-off-by: Song Gao <gaosong@loongson.cn>
This commit is contained in:
Xiaojuan Yang 2022-08-10 15:33:57 +08:00 committed by Song Gao
parent feae45dc42
commit ee413a52c1
No known key found for this signature in database
GPG Key ID: 40A2FFF239263EDF
1 changed files with 28 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

28
hw/loongarch/virt.c
View File

@ -158,6 +158,33 @@ static void fdt_add_pcie_node(const LoongArchMachineState *lams)
qemu_fdt_dumpdtb(ms->fdt, lams->fdt_size);
}
static void fdt_add_irqchip_node(LoongArchMachineState *lams)
{
MachineState *ms = MACHINE(lams);
char *nodename;
uint32_t irqchip_phandle;
irqchip_phandle = qemu_fdt_alloc_phandle(ms->fdt);
qemu_fdt_setprop_cell(ms->fdt, "/", "interrupt-parent", irqchip_phandle);
nodename = g_strdup_printf("/intc@%lx", VIRT_IOAPIC_REG_BASE);
qemu_fdt_add_subnode(ms->fdt, nodename);
qemu_fdt_setprop_cell(ms->fdt, nodename, "#interrupt-cells", 3);
qemu_fdt_setprop(ms->fdt, nodename, "interrupt-controller", NULL, 0);
qemu_fdt_setprop_cell(ms->fdt, nodename, "#address-cells", 0x2);
qemu_fdt_setprop_cell(ms->fdt, nodename, "#size-cells", 0x2);
qemu_fdt_setprop(ms->fdt, nodename, "ranges", NULL, 0);
qemu_fdt_setprop_string(ms->fdt, nodename, "compatible",
"loongarch,ls7a");
qemu_fdt_setprop_sized_cells(ms->fdt, nodename, "reg",
2, VIRT_IOAPIC_REG_BASE,
2, PCH_PIC_ROUTE_ENTRY_OFFSET);
qemu_fdt_setprop_cell(ms->fdt, nodename, "phandle", irqchip_phandle);
g_free(nodename);
}
#define PM_BASE 0x10080000
#define PM_SIZE 0x100
@ -697,6 +724,7 @@ static void loongarch_init(MachineState *machine)
}
/* Initialize the IO interrupt subsystem */
loongarch_irq_init(lams);
fdt_add_irqchip_node(lams);
lams->machine_done.notify = virt_machine_done;
qemu_add_machine_init_done_notifier(&lams->machine_done);
fdt_add_pcie_node(lams);