1b0c62724SMichal Simek /* 2b0c62724SMichal Simek * CPU-version specific code 3b0c62724SMichal Simek * 4b0c62724SMichal Simek * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu> 5b0c62724SMichal Simek * Copyright (C) 2006-2009 PetaLogix 6b0c62724SMichal Simek * 7b0c62724SMichal Simek * This file is subject to the terms and conditions of the GNU General Public 8b0c62724SMichal Simek * License. See the file "COPYING" in the main directory of this archive 9b0c62724SMichal Simek * for more details. 10b0c62724SMichal Simek */ 11b0c62724SMichal Simek 12b0c62724SMichal Simek #include <linux/init.h> 13b0c62724SMichal Simek #include <linux/string.h> 14b0c62724SMichal Simek #include <linux/seq_file.h> 15b0c62724SMichal Simek #include <linux/cpu.h> 16b0c62724SMichal Simek #include <linux/initrd.h> 17b0c62724SMichal Simek 18b0c62724SMichal Simek #include <linux/bug.h> 19b0c62724SMichal Simek #include <asm/cpuinfo.h> 20b0c62724SMichal Simek #include <linux/delay.h> 21b0c62724SMichal Simek #include <linux/io.h> 22b0c62724SMichal Simek #include <asm/page.h> 23b0c62724SMichal Simek #include <linux/param.h> 24b0c62724SMichal Simek #include <asm/pvr.h> 25b0c62724SMichal Simek #include <asm/sections.h> 26b0c62724SMichal Simek #include <asm/setup.h> 27b0c62724SMichal Simek 28b0c62724SMichal Simek static int show_cpuinfo(struct seq_file *m, void *v) 29b0c62724SMichal Simek { 30b0c62724SMichal Simek int count = 0; 31b0c62724SMichal Simek char *fpga_family = "Unknown"; 32b0c62724SMichal Simek char *cpu_ver = "Unknown"; 33b0c62724SMichal Simek int i; 34b0c62724SMichal Simek 35b0c62724SMichal Simek /* Denormalised to get the fpga family string */ 36b0c62724SMichal Simek for (i = 0; family_string_lookup[i].s != NULL; i++) { 37b0c62724SMichal Simek if (cpuinfo.fpga_family_code == family_string_lookup[i].k) { 38b0c62724SMichal Simek fpga_family = (char *)family_string_lookup[i].s; 39b0c62724SMichal Simek break; 40b0c62724SMichal Simek } 41b0c62724SMichal Simek } 42b0c62724SMichal Simek 43b0c62724SMichal Simek /* Denormalised to get the hw version string */ 44b0c62724SMichal Simek for (i = 0; cpu_ver_lookup[i].s != NULL; i++) { 45b0c62724SMichal Simek if (cpuinfo.ver_code == cpu_ver_lookup[i].k) { 46b0c62724SMichal Simek cpu_ver = (char *)cpu_ver_lookup[i].s; 47b0c62724SMichal Simek break; 48b0c62724SMichal Simek } 49b0c62724SMichal Simek } 50b0c62724SMichal Simek 51b0c62724SMichal Simek count = seq_printf(m, 52b0c62724SMichal Simek "CPU-Family: MicroBlaze\n" 53b0c62724SMichal Simek "FPGA-Arch: %s\n" 548e2ad016SMichal Simek "CPU-Ver: %s, %s endian\n" 55b0c62724SMichal Simek "CPU-MHz: %d.%02d\n" 56b0c62724SMichal Simek "BogoMips: %lu.%02lu\n", 57b0c62724SMichal Simek fpga_family, 58b0c62724SMichal Simek cpu_ver, 598e2ad016SMichal Simek cpuinfo.endian ? "little" : "big", 60b0c62724SMichal Simek cpuinfo.cpu_clock_freq / 61b0c62724SMichal Simek 1000000, 62b0c62724SMichal Simek cpuinfo.cpu_clock_freq % 63b0c62724SMichal Simek 1000000, 64b0c62724SMichal Simek loops_per_jiffy / (500000 / HZ), 65b0c62724SMichal Simek (loops_per_jiffy / (5000 / HZ)) % 100); 66b0c62724SMichal Simek 67b0c62724SMichal Simek count += seq_printf(m, 68b0c62724SMichal Simek "HW:\n Shift:\t\t%s\n" 69b0c62724SMichal Simek " MSR:\t\t%s\n" 70b0c62724SMichal Simek " PCMP:\t\t%s\n" 71b0c62724SMichal Simek " DIV:\t\t%s\n", 72b0c62724SMichal Simek (cpuinfo.use_instr & PVR0_USE_BARREL_MASK) ? "yes" : "no", 73b0c62724SMichal Simek (cpuinfo.use_instr & PVR2_USE_MSR_INSTR) ? "yes" : "no", 74b0c62724SMichal Simek (cpuinfo.use_instr & PVR2_USE_PCMP_INSTR) ? "yes" : "no", 75b0c62724SMichal Simek (cpuinfo.use_instr & PVR0_USE_DIV_MASK) ? "yes" : "no"); 76b0c62724SMichal Simek 77b0c62724SMichal Simek count += seq_printf(m, 78b0c62724SMichal Simek " MMU:\t\t%x\n", 79b0c62724SMichal Simek cpuinfo.mmu); 80b0c62724SMichal Simek 81b0c62724SMichal Simek count += seq_printf(m, 82b0c62724SMichal Simek " MUL:\t\t%s\n" 83b0c62724SMichal Simek " FPU:\t\t%s\n", 84b0c62724SMichal Simek (cpuinfo.use_mult & PVR2_USE_MUL64_MASK) ? "v2" : 85b0c62724SMichal Simek (cpuinfo.use_mult & PVR0_USE_HW_MUL_MASK) ? "v1" : "no", 86b0c62724SMichal Simek (cpuinfo.use_fpu & PVR2_USE_FPU2_MASK) ? "v2" : 87b0c62724SMichal Simek (cpuinfo.use_fpu & PVR0_USE_FPU_MASK) ? "v1" : "no"); 88b0c62724SMichal Simek 89b0c62724SMichal Simek count += seq_printf(m, 90b0c62724SMichal Simek " Exc:\t\t%s%s%s%s%s%s%s%s\n", 91b0c62724SMichal Simek (cpuinfo.use_exc & PVR2_OPCODE_0x0_ILL_MASK) ? "op0x0 " : "", 92b0c62724SMichal Simek (cpuinfo.use_exc & PVR2_UNALIGNED_EXC_MASK) ? "unal " : "", 93b0c62724SMichal Simek (cpuinfo.use_exc & PVR2_ILL_OPCODE_EXC_MASK) ? "ill " : "", 94b0c62724SMichal Simek (cpuinfo.use_exc & PVR2_IOPB_BUS_EXC_MASK) ? "iopb " : "", 95b0c62724SMichal Simek (cpuinfo.use_exc & PVR2_DOPB_BUS_EXC_MASK) ? "dopb " : "", 96b0c62724SMichal Simek (cpuinfo.use_exc & PVR2_DIV_ZERO_EXC_MASK) ? "zero " : "", 97b0c62724SMichal Simek (cpuinfo.use_exc & PVR2_FPU_EXC_MASK) ? "fpu " : "", 98b0c62724SMichal Simek (cpuinfo.use_exc & PVR2_USE_FSL_EXC) ? "fsl " : ""); 99b0c62724SMichal Simek 1008904976eSJohn A. Williams count += seq_printf(m, 1018904976eSJohn A. Williams "Stream-insns:\t%sprivileged\n", 1028904976eSJohn A. Williams cpuinfo.mmu_privins ? "un" : ""); 1038904976eSJohn A. Williams 104b0c62724SMichal Simek if (cpuinfo.use_icache) 105b0c62724SMichal Simek count += seq_printf(m, 10677543cebSMichal Simek "Icache:\t\t%ukB\tline length:\t%dB\n", 10777543cebSMichal Simek cpuinfo.icache_size >> 10, 10877543cebSMichal Simek cpuinfo.icache_line_length); 109b0c62724SMichal Simek else 110b0c62724SMichal Simek count += seq_printf(m, "Icache:\t\tno\n"); 111b0c62724SMichal Simek 112e051af57SMichal Simek if (cpuinfo.use_dcache) { 113b0c62724SMichal Simek count += seq_printf(m, 11477543cebSMichal Simek "Dcache:\t\t%ukB\tline length:\t%dB\n", 11577543cebSMichal Simek cpuinfo.dcache_size >> 10, 11677543cebSMichal Simek cpuinfo.dcache_line_length); 117e051af57SMichal Simek if (cpuinfo.dcache_wb) 118e051af57SMichal Simek count += seq_printf(m, "\t\twrite-back\n"); 119b0c62724SMichal Simek else 120e051af57SMichal Simek count += seq_printf(m, "\t\twrite-through\n"); 121e051af57SMichal Simek } else 122b0c62724SMichal Simek count += seq_printf(m, "Dcache:\t\tno\n"); 123b0c62724SMichal Simek 124b0c62724SMichal Simek count += seq_printf(m, 125b0c62724SMichal Simek "HW-Debug:\t%s\n", 126b0c62724SMichal Simek cpuinfo.hw_debug ? "yes" : "no"); 127b0c62724SMichal Simek 128b0c62724SMichal Simek count += seq_printf(m, 12979533fd4SMichal Simek "PVR-USR1:\t%02x\n" 13079533fd4SMichal Simek "PVR-USR2:\t%08x\n", 131b0c62724SMichal Simek cpuinfo.pvr_user1, 132b0c62724SMichal Simek cpuinfo.pvr_user2); 133b0c62724SMichal Simek 134ba9c4f88SSteven J. Magnani count += seq_printf(m, "Page size:\t%lu\n", PAGE_SIZE); 135b0c62724SMichal Simek return 0; 136b0c62724SMichal Simek } 137b0c62724SMichal Simek 138b0c62724SMichal Simek static void *c_start(struct seq_file *m, loff_t *pos) 139b0c62724SMichal Simek { 140b0c62724SMichal Simek int i = *pos; 141b0c62724SMichal Simek 142b0c62724SMichal Simek return i < NR_CPUS ? (void *) (i + 1) : NULL; 143b0c62724SMichal Simek } 144b0c62724SMichal Simek 145b0c62724SMichal Simek static void *c_next(struct seq_file *m, void *v, loff_t *pos) 146b0c62724SMichal Simek { 147b0c62724SMichal Simek ++*pos; 148b0c62724SMichal Simek return c_start(m, pos); 149b0c62724SMichal Simek } 150b0c62724SMichal Simek 151b0c62724SMichal Simek static void c_stop(struct seq_file *m, void *v) 152b0c62724SMichal Simek { 153b0c62724SMichal Simek } 154b0c62724SMichal Simek 155b0c62724SMichal Simek const struct seq_operations cpuinfo_op = { 156b0c62724SMichal Simek .start = c_start, 157b0c62724SMichal Simek .next = c_next, 158b0c62724SMichal Simek .stop = c_stop, 159b0c62724SMichal Simek .show = show_cpuinfo, 160b0c62724SMichal Simek }; 161