| 1 | /* |
| 2 | * ppc specific proc functions for linux-user |
| 3 | * |
| 4 | * SPDX-License-Identifier: GPL-2.0-or-later |
| 5 | */ |
| 6 | #ifndef PPC_TARGET_PROC_H |
| 7 | #define PPC_TARGET_PROC_H |
| 8 | |
| 9 | #include <time.h> |
| 10 | |
| 11 | #define PVR_VER(pvr) (((pvr) >> 16) & 0xFFFF) /* Version field */ |
| 12 | #define PVR_REV(pvr) (((pvr) >> 0) & 0xFFFF) /* Revison field */ |
| 13 | #define PVR_MAJ(pvr) (((pvr) >> 4) & 0xF) /* Major revision field */ |
| 14 | #define PVR_MIN(pvr) (((pvr) >> 0) & 0xF) /* Minor revision field */ |
| 15 | |
| 16 | static int open_cpuinfo(CPUArchState *cpu_env, int fd) |
| 17 | { |
| 18 | struct timespec res; |
| 19 | double freq_mhz; |
| 20 | int i, num_cpus; |
| 21 | unsigned int maj, min, pvr; |
| 22 | |
| 23 | PowerPCCPUClass *pcc = POWERPC_CPU_GET_CLASS(env_cpu(cpu_env)); |
| 24 | DeviceClass *dc = DEVICE_CLASS(ppc_cpu_get_family_class(pcc)); |
| 25 | |
| 26 | pvr = pcc->pvr; |
| 27 | |
| 28 | /* Taken from Linux kernel: */ |
| 29 | /* If we are a Freescale core do a simple check so |
| 30 | * we don't have to keep adding cases in the future */ |
| 31 | if (PVR_VER(pvr) & 0x8000) { |
| 32 | switch (PVR_VER(pvr)) { |
| 33 | case 0x8000: /* 7441/7450/7451, Voyager */ |
| 34 | case 0x8001: /* 7445/7455, Apollo 6 */ |
| 35 | case 0x8002: /* 7447/7457, Apollo 7 */ |
| 36 | case 0x8003: /* 7447A, Apollo 7 PM */ |
| 37 | case 0x8004: /* 7448, Apollo 8 */ |
| 38 | case 0x800c: /* 7410, Nitro */ |
| 39 | maj = ((pvr >> 8) & 0xF); |
| 40 | min = PVR_MIN(pvr); |
| 41 | break; |
| 42 | default: /* e500/book-e */ |
| 43 | maj = PVR_MAJ(pvr); |
| 44 | min = PVR_MIN(pvr); |
| 45 | break; |
| 46 | } |
| 47 | } else { |
| 48 | switch (PVR_VER(pvr)) { |
| 49 | case 0x1008: /* 740P/750P ?? */ |
| 50 | maj = ((pvr >> 8) & 0xFF) - 1; |
| 51 | min = pvr & 0xFF; |
| 52 | break; |
| 53 | case 0x004e: /* POWER9 bits 12-15 give chip type */ |
| 54 | case 0x0080: /* POWER10 bit 12 gives SMT8/4 */ |
| 55 | maj = (pvr >> 8) & 0x0F; |
| 56 | min = pvr & 0xFF; |
| 57 | break; |
| 58 | default: |
| 59 | maj = (pvr >> 8) & 0xFF; |
| 60 | min = pvr & 0xFF; |
| 61 | break; |
| 62 | } |
| 63 | } |
| 64 | |
| 65 | if (clock_getres(CLOCK_REALTIME, &res) == -1) { |
| 66 | res.tv_nsec = 1; |
| 67 | } |
| 68 | freq_mhz = 1000.0 / res.tv_nsec; |
| 69 | |
| 70 | num_cpus = sysconf(_SC_NPROCESSORS_ONLN); |
| 71 | for (i = 0; i < num_cpus; i++) { |
| 72 | dprintf(fd, "processor\t: %d\n", i); |
| 73 | dprintf(fd, "cpu\t\t: %s%s\n", |
| 74 | dc->desc, |
| 75 | pcc->insns_flags & PPC_ALTIVEC ? ", altivec supported":""); |
| 76 | dprintf(fd, "clock\t\t: %.3fMHz\n", freq_mhz); |
| 77 | dprintf(fd, "revision\t: %d.%d (pvr %04x %04x)\n\n", |
| 78 | maj, min, PVR_VER(pvr), PVR_REV(pvr)); |
| 79 | } |
| 80 | |
| 81 | dprintf(fd, "timebase\t: 1000000000\n"); |
| 82 | dprintf(fd, "platform\t: pSeries\n"); |
| 83 | dprintf(fd, "model\t\t: IBM pSeries (QEMU user v" QEMU_VERSION ")\n"); |
| 84 | dprintf(fd, "machine\t\t: CHRP IBM pSeries\n"); |
| 85 | |
| 86 | return 0; |
| 87 | } |
| 88 | #define HAVE_ARCH_PROC_CPUINFO |
| 89 | |
| 90 | #endif /* PPC_TARGET_PROC_H */ |