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hw/mips: Add Loongson-3 boot parameter helpers

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Preparing to add Loongson-3 machine support, add Loongson-3's LEFI (a
UEFI-like interface for BIOS-Kernel boot parameters) helpers first.

Co-developed-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Huacai Chen <chenhuacai@kernel.org>
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20201221110538.3186646-4-chenhuacai@kernel.org>
[PMD: Fixed typo]
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
This commit is contained in:
Huacai Chen 2020-10-16 14:51:58 +08:00 • committed by Philippe Mathieu-Daudé
parent 313d1e910a
commit d2245e2de0
4 changed files with 395 additions and 0 deletions
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151
hw/mips/loongson3_bootp.c Normal file
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/*
* LEFI (a UEFI-like interface for BIOS-Kernel boot parameters) helpers
*
* Copyright (c) 2018-2020 Huacai Chen (chenhc@lemote.com)
* Copyright (c) 2018-2020 Jiaxun Yang <jiaxun.yang@flygoat.com>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include "qemu/osdep.h"
#include "qemu/units.h"
#include "qemu/cutils.h"
#include "cpu.h"
#include "hw/boards.h"
#include "hw/mips/loongson3_bootp.h"
#define LOONGSON3_CORE_PER_NODE 4
static void init_cpu_info(void *g_cpuinfo, uint64_t cpu_freq)
{
struct efi_cpuinfo_loongson *c = g_cpuinfo;
c->cputype = cpu_to_le32(Loongson_3A);
c->processor_id = cpu_to_le32(MIPS_CPU(first_cpu)->env.CP0_PRid);
if (cpu_freq > UINT_MAX) {
c->cpu_clock_freq = cpu_to_le32(UINT_MAX);
} else {
c->cpu_clock_freq = cpu_to_le32(cpu_freq);
}
c->cpu_startup_core_id = cpu_to_le16(0);
c->nr_cpus = cpu_to_le32(current_machine->smp.cpus);
c->total_node = cpu_to_le32(DIV_ROUND_UP(current_machine->smp.cpus,
LOONGSON3_CORE_PER_NODE));
}
static void init_memory_map(void *g_map, uint64_t ram_size)
{
struct efi_memory_map_loongson *emap = g_map;
emap->nr_map = cpu_to_le32(2);
emap->mem_freq = cpu_to_le32(300000000);
emap->map[0].node_id = cpu_to_le32(0);
emap->map[0].mem_type = cpu_to_le32(1);
emap->map[0].mem_start = cpu_to_le64(0x0);
emap->map[0].mem_size = cpu_to_le32(240);
emap->map[1].node_id = cpu_to_le32(0);
emap->map[1].mem_type = cpu_to_le32(2);
emap->map[1].mem_start = cpu_to_le64(0x90000000);
emap->map[1].mem_size = cpu_to_le32((ram_size / MiB) - 256);
}
static void init_system_loongson(void *g_system)
{
struct system_loongson *s = g_system;
s->ccnuma_smp = cpu_to_le32(0);
s->sing_double_channel = cpu_to_le32(1);
s->nr_uarts = cpu_to_le32(1);
s->uarts[0].iotype = cpu_to_le32(2);
s->uarts[0].int_offset = cpu_to_le32(2);
s->uarts[0].uartclk = cpu_to_le32(25000000); /* Random value */
s->uarts[0].uart_base = cpu_to_le64(virt_memmap[VIRT_UART].base);
}
static void init_irq_source(void *g_irq_source)
{
struct irq_source_routing_table *irq_info = g_irq_source;
irq_info->node_id = cpu_to_le32(0);
irq_info->PIC_type = cpu_to_le32(0);
irq_info->dma_mask_bits = cpu_to_le16(64);
irq_info->pci_mem_start_addr = cpu_to_le64(virt_memmap[VIRT_PCIE_MMIO].base);
irq_info->pci_mem_end_addr = cpu_to_le64(virt_memmap[VIRT_PCIE_MMIO].base +
virt_memmap[VIRT_PCIE_MMIO].size - 1);
irq_info->pci_io_start_addr = cpu_to_le64(virt_memmap[VIRT_PCIE_PIO].base);
}
static void init_interface_info(void *g_interface)
{
struct interface_info *interface = g_interface;
interface->vers = cpu_to_le16(0x01);
strpadcpy(interface->description, 64, "UEFI_Version_v1.0", '\0');
}
static void board_devices_info(void *g_board)
{
struct board_devices *bd = g_board;
strpadcpy(bd->name, 64, "Loongson-3A-VIRT-1w-V1.00-demo", '\0');
}
static void init_special_info(void *g_special)
{
struct loongson_special_attribute *special = g_special;
strpadcpy(special->special_name, 64, "2018-05-01", '\0');
}
void init_loongson_params(struct loongson_params *lp, void *p,
uint64_t cpu_freq, uint64_t ram_size)
{
init_cpu_info(p, cpu_freq);
lp->cpu_offset = cpu_to_le64((uintptr_t)p - (uintptr_t)lp);
p += ROUND_UP(sizeof(struct efi_cpuinfo_loongson), 64);
init_memory_map(p, ram_size);
lp->memory_offset = cpu_to_le64((uintptr_t)p - (uintptr_t)lp);
p += ROUND_UP(sizeof(struct efi_memory_map_loongson), 64);
init_system_loongson(p);
lp->system_offset = cpu_to_le64((uintptr_t)p - (uintptr_t)lp);
p += ROUND_UP(sizeof(struct system_loongson), 64);
init_irq_source(p);
lp->irq_offset = cpu_to_le64((uintptr_t)p - (uintptr_t)lp);
p += ROUND_UP(sizeof(struct irq_source_routing_table), 64);
init_interface_info(p);
lp->interface_offset = cpu_to_le64((uintptr_t)p - (uintptr_t)lp);
p += ROUND_UP(sizeof(struct interface_info), 64);
board_devices_info(p);
lp->boarddev_table_offset = cpu_to_le64((uintptr_t)p - (uintptr_t)lp);
p += ROUND_UP(sizeof(struct board_devices), 64);
init_special_info(p);
lp->special_offset = cpu_to_le64((uintptr_t)p - (uintptr_t)lp);
p += ROUND_UP(sizeof(struct loongson_special_attribute), 64);
}
void init_reset_system(struct efi_reset_system_t *reset)
{
reset->Shutdown = cpu_to_le64(0xffffffffbfc000a8);
reset->ResetCold = cpu_to_le64(0xffffffffbfc00080);
reset->ResetWarm = cpu_to_le64(0xffffffffbfc00080);
}