| Mikael Starvik | 51533b6 | 2005-07-27 11:44:44 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Display CPU info in /proc/cpuinfo. |
| 3 | * |
| 4 | * Copyright (C) 2003, Axis Communications AB. |
| 5 | */ |
| 6 | |
| Mikael Starvik | 51533b6 | 2005-07-27 11:44:44 -0700 | [diff] [blame] | 7 | #include <linux/seq_file.h> |
| 8 | #include <linux/proc_fs.h> |
| 9 | #include <linux/delay.h> |
| 10 | #include <linux/param.h> |
| 11 | |
| 12 | #ifdef CONFIG_PROC_FS |
| 13 | |
| 14 | #define HAS_FPU 0x0001 |
| 15 | #define HAS_MMU 0x0002 |
| 16 | #define HAS_ETHERNET100 0x0004 |
| 17 | #define HAS_TOKENRING 0x0008 |
| 18 | #define HAS_SCSI 0x0010 |
| 19 | #define HAS_ATA 0x0020 |
| 20 | #define HAS_USB 0x0040 |
| 21 | #define HAS_IRQ_BUG 0x0080 |
| 22 | #define HAS_MMU_BUG 0x0100 |
| 23 | |
| 24 | struct cpu_info { |
| 25 | char *cpu_model; |
| 26 | unsigned short rev; |
| 27 | unsigned short cache_size; |
| 28 | unsigned short flags; |
| 29 | }; |
| 30 | |
| 31 | /* Some of these model are here for historical reasons only. */ |
| 32 | static struct cpu_info cpinfo[] = { |
| 33 | {"ETRAX 1", 0, 0, 0}, |
| 34 | {"ETRAX 2", 1, 0, 0}, |
| 35 | {"ETRAX 3", 2, 0, 0}, |
| 36 | {"ETRAX 4", 3, 0, 0}, |
| 37 | {"Simulator", 7, 8, HAS_ETHERNET100 | HAS_SCSI | HAS_ATA}, |
| 38 | {"ETRAX 100", 8, 8, HAS_ETHERNET100 | HAS_SCSI | HAS_ATA | HAS_IRQ_BUG}, |
| 39 | {"ETRAX 100", 9, 8, HAS_ETHERNET100 | HAS_SCSI | HAS_ATA}, |
| 40 | |
| 41 | {"ETRAX 100LX", 10, 8, HAS_ETHERNET100 | HAS_SCSI | HAS_ATA | HAS_USB |
| 42 | | HAS_MMU | HAS_MMU_BUG}, |
| 43 | |
| 44 | {"ETRAX 100LX v2", 11, 8, HAS_ETHERNET100 | HAS_SCSI | HAS_ATA | HAS_USB |
| 45 | | HAS_MMU}, |
| 46 | |
| 47 | {"ETRAX FS", 32, 32, HAS_ETHERNET100 | HAS_ATA | HAS_MMU}, |
| 48 | |
| 49 | {"Unknown", 0, 0, 0} |
| 50 | }; |
| 51 | |
| 52 | int |
| 53 | show_cpuinfo(struct seq_file *m, void *v) |
| 54 | { |
| 55 | int i; |
| 56 | int cpu = (int)v - 1; |
| 57 | int entries; |
| 58 | unsigned long revision; |
| 59 | struct cpu_info *info; |
| 60 | |
| 61 | entries = sizeof cpinfo / sizeof(struct cpu_info); |
| 62 | info = &cpinfo[entries - 1]; |
| 63 | |
| 64 | #ifdef CONFIG_SMP |
| 65 | if (!cpu_online(cpu)) |
| 66 | return 0; |
| 67 | #endif |
| 68 | |
| 69 | revision = rdvr(); |
| 70 | |
| 71 | for (i = 0; i < entries; i++) { |
| 72 | if (cpinfo[i].rev == revision) { |
| 73 | info = &cpinfo[i]; |
| 74 | break; |
| 75 | } |
| 76 | } |
| 77 | |
| 78 | return seq_printf(m, |
| 79 | "processor\t: %d\n" |
| 80 | "cpu\t\t: CRIS\n" |
| 81 | "cpu revision\t: %lu\n" |
| 82 | "cpu model\t: %s\n" |
| 83 | "cache size\t: %d KB\n" |
| 84 | "fpu\t\t: %s\n" |
| 85 | "mmu\t\t: %s\n" |
| 86 | "mmu DMA bug\t: %s\n" |
| 87 | "ethernet\t: %s Mbps\n" |
| 88 | "token ring\t: %s\n" |
| 89 | "scsi\t\t: %s\n" |
| 90 | "ata\t\t: %s\n" |
| 91 | "usb\t\t: %s\n" |
| 92 | "bogomips\t: %lu.%02lu\n\n", |
| 93 | |
| 94 | cpu, |
| 95 | revision, |
| 96 | info->cpu_model, |
| 97 | info->cache_size, |
| 98 | info->flags & HAS_FPU ? "yes" : "no", |
| 99 | info->flags & HAS_MMU ? "yes" : "no", |
| 100 | info->flags & HAS_MMU_BUG ? "yes" : "no", |
| 101 | info->flags & HAS_ETHERNET100 ? "10/100" : "10", |
| 102 | info->flags & HAS_TOKENRING ? "4/16 Mbps" : "no", |
| 103 | info->flags & HAS_SCSI ? "yes" : "no", |
| 104 | info->flags & HAS_ATA ? "yes" : "no", |
| 105 | info->flags & HAS_USB ? "yes" : "no", |
| 106 | (loops_per_jiffy * HZ + 500) / 500000, |
| 107 | ((loops_per_jiffy * HZ + 500) / 5000) % 100); |
| 108 | } |
| 109 | |
| 110 | #endif /* CONFIG_PROC_FS */ |
| 111 | |
| 112 | void |
| 113 | show_etrax_copyright(void) |
| 114 | { |
| 115 | printk(KERN_INFO |
| 116 | "Linux/CRISv32 port on ETRAX FS (C) 2003, 2004 Axis Communications AB\n"); |
| 117 | } |