hw/loongarch: Refine system dram memory region
For system dram memory region, it is not necessary to use numa node information. There is only low memory region and high memory region. Remove numa node information for ddr memory region here, it can reduce memory region number on LoongArch virt machine. Signed-off-by: Bibo Mao <maobibo@loongson.cn> Reviewed-by: Song Gao <gaosong@loongson.cn> Message-Id: <20240515093927.3453674-5-maobibo@loongson.cn> Signed-off-by: Song Gao <gaosong@loongson.cn>
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@ -978,14 +978,10 @@ static void virt_init(MachineState *machine)
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{
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{
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LoongArchCPU *lacpu;
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LoongArchCPU *lacpu;
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const char *cpu_model = machine->cpu_type;
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const char *cpu_model = machine->cpu_type;
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ram_addr_t offset = 0;
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ram_addr_t ram_size = machine->ram_size;
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uint64_t highram_size = 0, phyAddr = 0;
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MemoryRegion *address_space_mem = get_system_memory();
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MemoryRegion *address_space_mem = get_system_memory();
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LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(machine);
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LoongArchVirtMachineState *lvms = LOONGARCH_VIRT_MACHINE(machine);
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int nb_numa_nodes = machine->numa_state->num_nodes;
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NodeInfo *numa_info = machine->numa_state->nodes;
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int i;
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int i;
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hwaddr base, size, ram_size = machine->ram_size;
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const CPUArchIdList *possible_cpus;
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const CPUArchIdList *possible_cpus;
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MachineClass *mc = MACHINE_GET_CLASS(machine);
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MachineClass *mc = MACHINE_GET_CLASS(machine);
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CPUState *cpu;
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CPUState *cpu;
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@ -1023,40 +1019,27 @@ static void virt_init(MachineState *machine)
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fw_cfg_add_memory(machine);
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fw_cfg_add_memory(machine);
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/* Node0 memory */
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/* Node0 memory */
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memory_region_init_alias(&lvms->lowmem, NULL, "loongarch.node0.lowram",
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size = ram_size;
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machine->ram, offset, VIRT_LOWMEM_SIZE);
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base = VIRT_LOWMEM_BASE;
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memory_region_add_subregion(address_space_mem, phyAddr, &lvms->lowmem);
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if (size > VIRT_LOWMEM_SIZE) {
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size = VIRT_LOWMEM_SIZE;
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offset += VIRT_LOWMEM_SIZE;
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if (nb_numa_nodes > 0) {
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assert(numa_info[0].node_mem > VIRT_LOWMEM_SIZE);
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highram_size = numa_info[0].node_mem - VIRT_LOWMEM_SIZE;
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} else {
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highram_size = ram_size - VIRT_LOWMEM_SIZE;
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}
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}
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phyAddr = VIRT_HIGHMEM_BASE;
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memory_region_init_alias(&lvms->highmem, NULL, "loongarch.node0.highram",
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machine->ram, offset, highram_size);
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memory_region_add_subregion(address_space_mem, phyAddr, &lvms->highmem);
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/* Node1 - Nodemax memory */
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memory_region_init_alias(&lvms->lowmem, NULL, "loongarch.lowram",
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offset += highram_size;
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machine->ram, base, size);
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phyAddr += highram_size;
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memory_region_add_subregion(address_space_mem, base, &lvms->lowmem);
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base += size;
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for (i = 1; i < nb_numa_nodes; i++) {
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if (ram_size - size) {
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MemoryRegion *nodemem = g_new(MemoryRegion, 1);
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base = VIRT_HIGHMEM_BASE;
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g_autofree char *ramName = g_strdup_printf("loongarch.node%d.ram", i);
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memory_region_init_alias(&lvms->highmem, NULL, "loongarch.highram",
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memory_region_init_alias(nodemem, NULL, ramName, machine->ram,
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machine->ram, VIRT_LOWMEM_BASE + size, ram_size - size);
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offset, numa_info[i].node_mem);
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memory_region_add_subregion(address_space_mem, base, &lvms->highmem);
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memory_region_add_subregion(address_space_mem, phyAddr, nodemem);
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base += ram_size - size;
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offset += numa_info[i].node_mem;
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phyAddr += numa_info[i].node_mem;
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}
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}
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/* initialize device memory address space */
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/* initialize device memory address space */
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if (machine->ram_size < machine->maxram_size) {
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if (machine->ram_size < machine->maxram_size) {
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ram_addr_t device_mem_size = machine->maxram_size - machine->ram_size;
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ram_addr_t device_mem_size = machine->maxram_size - machine->ram_size;
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hwaddr device_mem_base;
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if (machine->ram_slots > ACPI_MAX_RAM_SLOTS) {
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if (machine->ram_slots > ACPI_MAX_RAM_SLOTS) {
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error_report("unsupported amount of memory slots: %"PRIu64,
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error_report("unsupported amount of memory slots: %"PRIu64,
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@ -1070,9 +1053,7 @@ static void virt_init(MachineState *machine)
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"%d bytes", TARGET_PAGE_SIZE);
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"%d bytes", TARGET_PAGE_SIZE);
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exit(EXIT_FAILURE);
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exit(EXIT_FAILURE);
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}
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}
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/* device memory base is the top of high memory address. */
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machine_memory_devices_init(machine, base, device_mem_size);
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device_mem_base = ROUND_UP(VIRT_HIGHMEM_BASE + highram_size, 1 * GiB);
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machine_memory_devices_init(machine, device_mem_base, device_mem_size);
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}
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}
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/* load the BIOS image. */
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/* load the BIOS image. */
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