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hw/riscv: Move the dtb load bits outside of create_fdt()

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Move the dtb load bits outside of create_fdt(), and put it explicitly
in sifive_u_machine_init() and virt_machine_init(). With such change
create_fdt() does exactly what its function name tells us.

Suggested-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Signed-off-by: Bin Meng <bmeng@tinylab.org>
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Message-ID: <20230228074522.1845007-2-bmeng@tinylab.org>
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
This commit is contained in:
Bin Meng 2023-02-28 15:45:22 +08:00 committed by Palmer Dabbelt
parent d43d54ca2b
commit fc9ec3625f
No known key found for this signature in database
GPG Key ID: 2E1319F35FBB1889
3 changed files with 30 additions and 31 deletions
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23
hw/riscv/sifive_u.c
View File

@ -99,7 +99,7 @@ static void create_fdt(SiFiveUState *s, const MemMapEntry *memmap,
MachineState *ms = MACHINE(s);
uint64_t mem_size = ms->ram_size;
void *fdt;
int cpu, fdt_size;
int cpu;
uint32_t *cells;
char *nodename;
uint32_t plic_phandle, prci_phandle, gpio_phandle, phandle = 1;
@ -112,20 +112,11 @@ static void create_fdt(SiFiveUState *s, const MemMapEntry *memmap,
"sifive,plic-1.0.0", "riscv,plic0"
};
if (ms->dtb) {
fdt = ms->fdt = load_device_tree(ms->dtb, &fdt_size);
if (!fdt) {
error_report("load_device_tree() failed");
exit(1);
}
return;
} else {
fdt = ms->fdt = create_device_tree(&fdt_size);
fdt = ms->fdt = create_device_tree(&s->fdt_size);
if (!fdt) {
error_report("create_device_tree() failed");
exit(1);
}
}
qemu_fdt_setprop_string(fdt, "/", "model", "SiFive HiFive Unleashed A00");
qemu_fdt_setprop_string(fdt, "/", "compatible",
@ -561,8 +552,16 @@ static void sifive_u_machine_init(MachineState *machine)
qdev_connect_gpio_out(DEVICE(&(s->soc.gpio)), 10,
qemu_allocate_irq(sifive_u_machine_reset, NULL, 0));
/* create device tree */
/* load/create device tree */
if (machine->dtb) {
machine->fdt = load_device_tree(machine->dtb, &s->fdt_size);
if (!machine->fdt) {
error_report("load_device_tree() failed");
exit(1);
}
} else {
create_fdt(s, memmap, riscv_is_32bit(&s->soc.u_cpus));
}
if (s->start_in_flash) {
/*

19
hw/riscv/virt.c
View File

@ -1009,20 +1009,11 @@ static void create_fdt(RISCVVirtState *s, const MemMapEntry *memmap)
uint32_t irq_pcie_phandle = 1, irq_virtio_phandle = 1;
uint8_t rng_seed[32];
if (ms->dtb) {
ms->fdt = load_device_tree(ms->dtb, &s->fdt_size);
if (!ms->fdt) {
error_report("load_device_tree() failed");
exit(1);
}
return;
} else {
ms->fdt = create_device_tree(&s->fdt_size);
if (!ms->fdt) {
error_report("create_device_tree() failed");
exit(1);
}
}
qemu_fdt_setprop_string(ms->fdt, "/", "model", "riscv-virtio,qemu");
qemu_fdt_setprop_string(ms->fdt, "/", "compatible", "riscv-virtio");
@ -1506,8 +1497,16 @@ static void virt_machine_init(MachineState *machine)
}
virt_flash_map(s, system_memory);
/* create device tree */
/* load/create device tree */
if (machine->dtb) {
machine->fdt = load_device_tree(machine->dtb, &s->fdt_size);
if (!machine->fdt) {
error_report("load_device_tree() failed");
exit(1);
}
} else {
create_fdt(s, memmap);
}
s->machine_done.notify = virt_machine_done;
qemu_add_machine_init_done_notifier(&s->machine_done);

1
include/hw/riscv/sifive_u.h
View File

@ -68,6 +68,7 @@ typedef struct SiFiveUState {
/*< public >*/
SiFiveUSoCState soc;
int fdt_size;
bool start_in_flash;
uint32_t msel;