^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) * CPU-version specific code
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 2006-2009 PetaLogix
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * This file is subject to the terms and conditions of the GNU General Public
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * License. See the file "COPYING" in the main directory of this archive
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * for more details.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/string.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/seq_file.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/cpu.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/initrd.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/bug.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <asm/cpuinfo.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <linux/delay.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <linux/io.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <asm/page.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include <linux/param.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include <asm/pvr.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #include <asm/sections.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #include <asm/setup.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) static int show_cpuinfo(struct seq_file *m, void *v)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) char *fpga_family = "Unknown";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) char *cpu_ver = "Unknown";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) /* Denormalised to get the fpga family string */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) for (i = 0; family_string_lookup[i].s != NULL; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) if (cpuinfo.fpga_family_code == family_string_lookup[i].k) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) fpga_family = (char *)family_string_lookup[i].s;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) /* Denormalised to get the hw version string */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) for (i = 0; cpu_ver_lookup[i].s != NULL; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) if (cpuinfo.ver_code == cpu_ver_lookup[i].k) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) cpu_ver = (char *)cpu_ver_lookup[i].s;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) seq_printf(m,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) "CPU-Family: MicroBlaze\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) "FPGA-Arch: %s\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) "CPU-Ver: %s, %s endian\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) "CPU-MHz: %d.%02d\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) "BogoMips: %lu.%02lu\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) fpga_family,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) cpu_ver,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) cpuinfo.endian ? "little" : "big",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) cpuinfo.cpu_clock_freq / 1000000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) cpuinfo.cpu_clock_freq % 1000000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) loops_per_jiffy / (500000 / HZ),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) (loops_per_jiffy / (5000 / HZ)) % 100);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) seq_printf(m,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) "HW:\n Shift:\t\t%s\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) " MSR:\t\t%s\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) " PCMP:\t\t%s\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) " DIV:\t\t%s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) (cpuinfo.use_instr & PVR0_USE_BARREL_MASK) ? "yes" : "no",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) (cpuinfo.use_instr & PVR2_USE_MSR_INSTR) ? "yes" : "no",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) (cpuinfo.use_instr & PVR2_USE_PCMP_INSTR) ? "yes" : "no",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) (cpuinfo.use_instr & PVR0_USE_DIV_MASK) ? "yes" : "no");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) seq_printf(m, " MMU:\t\t%x\n", cpuinfo.mmu);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) seq_printf(m,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) " MUL:\t\t%s\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) " FPU:\t\t%s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) (cpuinfo.use_mult & PVR2_USE_MUL64_MASK) ? "v2" :
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) (cpuinfo.use_mult & PVR0_USE_HW_MUL_MASK) ? "v1" : "no",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) (cpuinfo.use_fpu & PVR2_USE_FPU2_MASK) ? "v2" :
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) (cpuinfo.use_fpu & PVR0_USE_FPU_MASK) ? "v1" : "no");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) seq_printf(m,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) " Exc:\t\t%s%s%s%s%s%s%s%s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) (cpuinfo.use_exc & PVR2_OPCODE_0x0_ILL_MASK) ? "op0x0 " : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) (cpuinfo.use_exc & PVR2_UNALIGNED_EXC_MASK) ? "unal " : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) (cpuinfo.use_exc & PVR2_ILL_OPCODE_EXC_MASK) ? "ill " : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) (cpuinfo.use_exc & PVR2_IOPB_BUS_EXC_MASK) ? "iopb " : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) (cpuinfo.use_exc & PVR2_DOPB_BUS_EXC_MASK) ? "dopb " : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) (cpuinfo.use_exc & PVR2_DIV_ZERO_EXC_MASK) ? "zero " : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) (cpuinfo.use_exc & PVR2_FPU_EXC_MASK) ? "fpu " : "",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) (cpuinfo.use_exc & PVR2_USE_FSL_EXC) ? "fsl " : "");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) seq_printf(m,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) "Stream-insns:\t%sprivileged\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) cpuinfo.mmu_privins ? "un" : "");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) if (cpuinfo.use_icache)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) seq_printf(m,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) "Icache:\t\t%ukB\tline length:\t%dB\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) cpuinfo.icache_size >> 10,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) cpuinfo.icache_line_length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) seq_puts(m, "Icache:\t\tno\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) if (cpuinfo.use_dcache) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) seq_printf(m,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) "Dcache:\t\t%ukB\tline length:\t%dB\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) cpuinfo.dcache_size >> 10,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) cpuinfo.dcache_line_length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) seq_puts(m, "Dcache-Policy:\t");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) if (cpuinfo.dcache_wb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) seq_puts(m, "write-back\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) seq_puts(m, "write-through\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) seq_puts(m, "Dcache:\t\tno\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) seq_printf(m,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) "HW-Debug:\t%s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) cpuinfo.hw_debug ? "yes" : "no");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) seq_printf(m,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) "PVR-USR1:\t%02x\n"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) "PVR-USR2:\t%08x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) cpuinfo.pvr_user1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) cpuinfo.pvr_user2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) seq_printf(m, "Page size:\t%lu\n", PAGE_SIZE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) static void *c_start(struct seq_file *m, loff_t *pos)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) int i = *pos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) return i < NR_CPUS ? (void *) (i + 1) : NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) static void *c_next(struct seq_file *m, void *v, loff_t *pos)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) ++*pos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) return c_start(m, pos);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) static void c_stop(struct seq_file *m, void *v)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) const struct seq_operations cpuinfo_op = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) .start = c_start,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) .next = c_next,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) .stop = c_stop,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) .show = show_cpuinfo,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) };
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
3 Commits
0 Branches
0 Tags