| /* |
| * Loongson specific proc functions for linux-user |
| * |
| * Copyright (c) 2026 Helge Deller |
| * |
| * SPDX-License-Identifier: GPL-2.0-or-later |
| */ |
| #ifndef LOONGARCH_TARGET_PROC_H |
| #define LOONGARCH_TARGET_PROC_H |
| |
| static int open_cpuinfo(CPUArchState *cpu_env, int fd) |
| { |
| uint32_t elf_hwcap = get_elf_hwcap(env_cpu(cpu_env)); |
| uint32_t prid, ser_id, pabits, vabits, i, n, num_cpus; |
| bool is_64bit = is_la64(cpu_env); |
| const char *hwcap_str; |
| struct timespec res; |
| double freq_mhz; |
| |
| #if TARGET_LONG_BITS == 32 |
| pabits = 31; |
| vabits = 31; |
| #else |
| pabits = FIELD_EX32(cpu_env->cpucfg[1], CPUCFG1, PALEN); |
| vabits = FIELD_EX32(cpu_env->cpucfg[1], CPUCFG1, VALEN); |
| #endif |
| |
| if (clock_getres(CLOCK_REALTIME, &res) == -1) { |
| res.tv_nsec = 1; |
| } |
| freq_mhz = 1000.0 / res.tv_nsec; |
| |
| ser_id = FIELD_EX32(cpu_env->cpucfg[0], CPUCFG0, SERID); |
| prid = FIELD_EX32(cpu_env->cpucfg[0], CPUCFG0, PRID); |
| |
| dprintf(fd, "system type\t\t: generic-loongson-machine\n"); |
| |
| num_cpus = sysconf(_SC_NPROCESSORS_ONLN); |
| for (n = 0; n < num_cpus; n++) { |
| dprintf(fd, "\nprocessor\t\t: %d\n", n); |
| dprintf(fd, "package\t\t\t: 0\n"); |
| dprintf(fd, "core\t\t\t: %d\n", n); |
| dprintf(fd, "global_id\t\t: %d\n", n); |
| dprintf(fd, "CPU Family\t\t: Loongson-%dbit\n", is_64bit ? 64 : 32); |
| dprintf(fd, "Model Name\t\t: QEMU_user-v" QEMU_VERSION "\n"); |
| dprintf(fd, "PRID\t\t\t: %s (%08x)\n", |
| ser_id == PRID_SERIES_LA464 ? "LA464" : |
| ser_id == PRID_SERIES_LA132 ? "LA132" : "Unknown", |
| cpu_env->cpucfg[0]); |
| dprintf(fd, "CPU Revision\t\t: 0x%02x\n", prid); |
| dprintf(fd, "FPU Revision\t\t: 0x%02x\n", |
| FIELD_EX32(cpu_env->cpucfg[2], CPUCFG2, FP_VER)); |
| dprintf(fd, "CPU MHz\t\t\t: %.2f\n", freq_mhz); |
| dprintf(fd, "Address Sizes\t\t: %d bits physical, %d bits virtual\n", |
| pabits + 1, vabits + 1); |
| |
| dprintf(fd, "ISA\t\t\t:%s", " loongarch32r loongarch32s"); |
| if (is_64bit) { |
| dprintf(fd, " loongarch64"); |
| } |
| |
| dprintf(fd, "\nFeatures\t\t:"); |
| for (i = 0; i < sizeof(elf_hwcap) * 8; i++) { |
| if (!(elf_hwcap & (1 << i))) { |
| continue; |
| } |
| hwcap_str = elf_hwcap_str(i); |
| if (hwcap_str) { |
| dprintf(fd, " %s", hwcap_str); |
| } |
| } |
| dprintf(fd, "\nHardware Watchpoint\t: no\n"); |
| } |
| return 0; |
| } |
| #define HAVE_ARCH_PROC_CPUINFO |
| |
| #endif /* LOONGARCH_TARGET_PROC_H */ |
