diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-12-28 15:33:21 -0500 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-12-28 15:33:21 -0500 |
| commit | 1db2a5c11e495366bff35cf7445d494703f7febe (patch) | |
| tree | 3347dd1cab0a2a96a4333524298a62132eb22336 /arch/s390/kernel/processor.c | |
| parent | a39b863342b8aba52390092be95db58f6ed56061 (diff) | |
| parent | cef7125def4dd104769f400c941199614da0aca1 (diff) | |
Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6
* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6: (85 commits)
[S390] provide documentation for hvc_iucv kernel parameter.
[S390] convert ctcm printks to dev_xxx and pr_xxx macros.
[S390] convert zfcp printks to pr_xxx macros.
[S390] convert vmlogrdr printks to pr_xxx macros.
[S390] convert zfcp dumper printks to pr_xxx macros.
[S390] convert cpu related printks to pr_xxx macros.
[S390] convert qeth printks to dev_xxx and pr_xxx macros.
[S390] convert sclp printks to pr_xxx macros.
[S390] convert iucv printks to dev_xxx and pr_xxx macros.
[S390] convert ap_bus printks to pr_xxx macros.
[S390] convert dcssblk and extmem printks messages to pr_xxx macros.
[S390] convert monwriter printks to pr_xxx macros.
[S390] convert s390 debug feature printks to pr_xxx macros.
[S390] convert monreader printks to pr_xxx macros.
[S390] convert appldata printks to pr_xxx macros.
[S390] convert setup printks to pr_xxx macros.
[S390] convert hypfs printks to pr_xxx macros.
[S390] convert time printks to pr_xxx macros.
[S390] convert cpacf printks to pr_xxx macros.
[S390] convert cio printks to pr_xxx macros.
...
Diffstat (limited to 'arch/s390/kernel/processor.c')
| -rw-r--r-- | arch/s390/kernel/processor.c | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/arch/s390/kernel/processor.c b/arch/s390/kernel/processor.c new file mode 100644 index 000000000000..82c1872cfe80 --- /dev/null +++ b/arch/s390/kernel/processor.c | |||
| @@ -0,0 +1,98 @@ | |||
| 1 | /* | ||
| 2 | * arch/s390/kernel/processor.c | ||
| 3 | * | ||
| 4 | * Copyright IBM Corp. 2008 | ||
| 5 | * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com) | ||
| 6 | */ | ||
| 7 | |||
| 8 | #define KMSG_COMPONENT "cpu" | ||
| 9 | #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt | ||
| 10 | |||
| 11 | #include <linux/kernel.h> | ||
| 12 | #include <linux/init.h> | ||
| 13 | #include <linux/smp.h> | ||
| 14 | #include <linux/seq_file.h> | ||
| 15 | #include <linux/delay.h> | ||
| 16 | |||
| 17 | #include <asm/elf.h> | ||
| 18 | #include <asm/lowcore.h> | ||
| 19 | #include <asm/param.h> | ||
| 20 | |||
| 21 | void __cpuinit print_cpu_info(struct cpuinfo_S390 *cpuinfo) | ||
| 22 | { | ||
| 23 | pr_info("Processor %d started, address %d, identification %06X\n", | ||
| 24 | cpuinfo->cpu_nr, cpuinfo->cpu_addr, cpuinfo->cpu_id.ident); | ||
| 25 | } | ||
| 26 | |||
| 27 | /* | ||
| 28 | * show_cpuinfo - Get information on one CPU for use by procfs. | ||
| 29 | */ | ||
| 30 | |||
| 31 | static int show_cpuinfo(struct seq_file *m, void *v) | ||
| 32 | { | ||
| 33 | static const char *hwcap_str[8] = { | ||
| 34 | "esan3", "zarch", "stfle", "msa", "ldisp", "eimm", "dfp", | ||
| 35 | "edat" | ||
| 36 | }; | ||
| 37 | struct cpuinfo_S390 *cpuinfo; | ||
| 38 | unsigned long n = (unsigned long) v - 1; | ||
| 39 | int i; | ||
| 40 | |||
| 41 | s390_adjust_jiffies(); | ||
| 42 | preempt_disable(); | ||
| 43 | if (!n) { | ||
| 44 | seq_printf(m, "vendor_id : IBM/S390\n" | ||
| 45 | "# processors : %i\n" | ||
| 46 | "bogomips per cpu: %lu.%02lu\n", | ||
| 47 | num_online_cpus(), loops_per_jiffy/(500000/HZ), | ||
| 48 | (loops_per_jiffy/(5000/HZ))%100); | ||
| 49 | seq_puts(m, "features\t: "); | ||
| 50 | for (i = 0; i < 8; i++) | ||
| 51 | if (hwcap_str[i] && (elf_hwcap & (1UL << i))) | ||
| 52 | seq_printf(m, "%s ", hwcap_str[i]); | ||
| 53 | seq_puts(m, "\n"); | ||
| 54 | } | ||
| 55 | |||
| 56 | if (cpu_online(n)) { | ||
| 57 | #ifdef CONFIG_SMP | ||
| 58 | if (smp_processor_id() == n) | ||
| 59 | cpuinfo = &S390_lowcore.cpu_data; | ||
| 60 | else | ||
| 61 | cpuinfo = &lowcore_ptr[n]->cpu_data; | ||
| 62 | #else | ||
| 63 | cpuinfo = &S390_lowcore.cpu_data; | ||
| 64 | #endif | ||
| 65 | seq_printf(m, "processor %li: " | ||
| 66 | "version = %02X, " | ||
| 67 | "identification = %06X, " | ||
| 68 | "machine = %04X\n", | ||
| 69 | n, cpuinfo->cpu_id.version, | ||
| 70 | cpuinfo->cpu_id.ident, | ||
| 71 | cpuinfo->cpu_id.machine); | ||
| 72 | } | ||
| 73 | preempt_enable(); | ||
| 74 | return 0; | ||
| 75 | } | ||
| 76 | |||
| 77 | static void *c_start(struct seq_file *m, loff_t *pos) | ||
| 78 | { | ||
| 79 | return *pos < NR_CPUS ? (void *)((unsigned long) *pos + 1) : NULL; | ||
| 80 | } | ||
| 81 | |||
| 82 | static void *c_next(struct seq_file *m, void *v, loff_t *pos) | ||
| 83 | { | ||
| 84 | ++*pos; | ||
| 85 | return c_start(m, pos); | ||
| 86 | } | ||
| 87 | |||
| 88 | static void c_stop(struct seq_file *m, void *v) | ||
| 89 | { | ||
| 90 | } | ||
| 91 | |||
| 92 | const struct seq_operations cpuinfo_op = { | ||
| 93 | .start = c_start, | ||
| 94 | .next = c_next, | ||
| 95 | .stop = c_stop, | ||
| 96 | .show = show_cpuinfo, | ||
| 97 | }; | ||
| 98 | |||
