118 lines
2.7 KiB
C
118 lines
2.7 KiB
C
/*
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* Display CPU info in /proc/cpuinfo.
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*
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* Copyright (C) 2003, Axis Communications AB.
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*/
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#include <linux/seq_file.h>
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#include <linux/proc_fs.h>
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#include <linux/delay.h>
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#include <linux/param.h>
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#ifdef CONFIG_PROC_FS
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#define HAS_FPU 0x0001
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#define HAS_MMU 0x0002
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#define HAS_ETHERNET100 0x0004
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#define HAS_TOKENRING 0x0008
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#define HAS_SCSI 0x0010
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#define HAS_ATA 0x0020
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#define HAS_USB 0x0040
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#define HAS_IRQ_BUG 0x0080
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#define HAS_MMU_BUG 0x0100
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struct cpu_info {
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char *cpu_model;
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unsigned short rev;
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unsigned short cache_size;
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unsigned short flags;
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};
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/* Some of these model are here for historical reasons only. */
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static struct cpu_info cpinfo[] = {
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{"ETRAX 1", 0, 0, 0},
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{"ETRAX 2", 1, 0, 0},
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{"ETRAX 3", 2, 0, 0},
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{"ETRAX 4", 3, 0, 0},
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{"Simulator", 7, 8, HAS_ETHERNET100 | HAS_SCSI | HAS_ATA},
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{"ETRAX 100", 8, 8, HAS_ETHERNET100 | HAS_SCSI | HAS_ATA | HAS_IRQ_BUG},
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{"ETRAX 100", 9, 8, HAS_ETHERNET100 | HAS_SCSI | HAS_ATA},
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{"ETRAX 100LX", 10, 8, HAS_ETHERNET100 | HAS_SCSI | HAS_ATA | HAS_USB
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| HAS_MMU | HAS_MMU_BUG},
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{"ETRAX 100LX v2", 11, 8, HAS_ETHERNET100 | HAS_SCSI | HAS_ATA | HAS_USB
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| HAS_MMU},
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{"ETRAX FS", 32, 32, HAS_ETHERNET100 | HAS_ATA | HAS_MMU},
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{"Unknown", 0, 0, 0}
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};
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int
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show_cpuinfo(struct seq_file *m, void *v)
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{
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int i;
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int cpu = (int)v - 1;
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int entries;
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unsigned long revision;
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struct cpu_info *info;
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entries = sizeof cpinfo / sizeof(struct cpu_info);
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info = &cpinfo[entries - 1];
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#ifdef CONFIG_SMP
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if (!cpu_online(cpu))
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return 0;
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#endif
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revision = rdvr();
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for (i = 0; i < entries; i++) {
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if (cpinfo[i].rev == revision) {
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info = &cpinfo[i];
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break;
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}
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}
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return seq_printf(m,
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"processor\t: %d\n"
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"cpu\t\t: CRIS\n"
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"cpu revision\t: %lu\n"
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"cpu model\t: %s\n"
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"cache size\t: %d KB\n"
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"fpu\t\t: %s\n"
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"mmu\t\t: %s\n"
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"mmu DMA bug\t: %s\n"
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"ethernet\t: %s Mbps\n"
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"token ring\t: %s\n"
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"scsi\t\t: %s\n"
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"ata\t\t: %s\n"
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"usb\t\t: %s\n"
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"bogomips\t: %lu.%02lu\n\n",
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cpu,
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revision,
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info->cpu_model,
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info->cache_size,
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info->flags & HAS_FPU ? "yes" : "no",
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info->flags & HAS_MMU ? "yes" : "no",
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info->flags & HAS_MMU_BUG ? "yes" : "no",
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info->flags & HAS_ETHERNET100 ? "10/100" : "10",
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info->flags & HAS_TOKENRING ? "4/16 Mbps" : "no",
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info->flags & HAS_SCSI ? "yes" : "no",
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info->flags & HAS_ATA ? "yes" : "no",
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info->flags & HAS_USB ? "yes" : "no",
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(loops_per_jiffy * HZ + 500) / 500000,
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((loops_per_jiffy * HZ + 500) / 5000) % 100);
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}
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#endif /* CONFIG_PROC_FS */
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void
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show_etrax_copyright(void)
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{
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printk(KERN_INFO
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"Linux/CRISv32 port on ETRAX FS (C) 2003, 2004 Axis Communications AB\n");
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}
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