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Diffstat (limited to 'arch/mips/kernel/smtc-proc.c')
-rw-r--r--arch/mips/kernel/smtc-proc.c64
1 files changed, 26 insertions, 38 deletions
diff --git a/arch/mips/kernel/smtc-proc.c b/arch/mips/kernel/smtc-proc.c
index aee7c8177b5d..9fb714450e95 100644
--- a/arch/mips/kernel/smtc-proc.c
+++ b/arch/mips/kernel/smtc-proc.c
@@ -16,6 +16,7 @@
16#include <asm/mipsregs.h> 16#include <asm/mipsregs.h>
17#include <asm/cacheflush.h> 17#include <asm/cacheflush.h>
18#include <linux/proc_fs.h> 18#include <linux/proc_fs.h>
19#include <linux/seq_file.h>
19 20
20#include <asm/smtc_proc.h> 21#include <asm/smtc_proc.h>
21 22
@@ -30,51 +31,39 @@ unsigned long selfipis[NR_CPUS];
30 31
31struct smtc_cpu_proc smtc_cpu_stats[NR_CPUS]; 32struct smtc_cpu_proc smtc_cpu_stats[NR_CPUS];
32 33
33static struct proc_dir_entry *smtc_stats;
34
35atomic_t smtc_fpu_recoveries; 34atomic_t smtc_fpu_recoveries;
36 35
37static int proc_read_smtc(char *page, char **start, off_t off, 36static int smtc_proc_show(struct seq_file *m, void *v)
38 int count, int *eof, void *data)
39{ 37{
40 int totalen = 0;
41 int len;
42 int i; 38 int i;
43 extern unsigned long ebase; 39 extern unsigned long ebase;
44 40
45 len = sprintf(page, "SMTC Status Word: 0x%08x\n", smtc_status); 41 seq_printf(m, "SMTC Status Word: 0x%08x\n", smtc_status);
46 totalen += len; 42 seq_printf(m, "Config7: 0x%08x\n", read_c0_config7());
47 page += len; 43 seq_printf(m, "EBASE: 0x%08lx\n", ebase);
48 len = sprintf(page, "Config7: 0x%08x\n", read_c0_config7()); 44 seq_printf(m, "Counter Interrupts taken per CPU (TC)\n");
49 totalen += len; 45 for (i=0; i < NR_CPUS; i++)
50 page += len; 46 seq_printf(m, "%d: %ld\n", i, smtc_cpu_stats[i].timerints);
51 len = sprintf(page, "EBASE: 0x%08lx\n", ebase); 47 seq_printf(m, "Self-IPIs by CPU:\n");
52 totalen += len; 48 for(i = 0; i < NR_CPUS; i++)
53 page += len; 49 seq_printf(m, "%d: %ld\n", i, smtc_cpu_stats[i].selfipis);
54 len = sprintf(page, "Counter Interrupts taken per CPU (TC)\n"); 50 seq_printf(m, "%d Recoveries of \"stolen\" FPU\n",
55 totalen += len; 51 atomic_read(&smtc_fpu_recoveries));
56 page += len; 52 return 0;
57 for (i=0; i < NR_CPUS; i++) { 53}
58 len = sprintf(page, "%d: %ld\n", i, smtc_cpu_stats[i].timerints);
59 totalen += len;
60 page += len;
61 }
62 len = sprintf(page, "Self-IPIs by CPU:\n");
63 totalen += len;
64 page += len;
65 for(i = 0; i < NR_CPUS; i++) {
66 len = sprintf(page, "%d: %ld\n", i, smtc_cpu_stats[i].selfipis);
67 totalen += len;
68 page += len;
69 }
70 len = sprintf(page, "%d Recoveries of \"stolen\" FPU\n",
71 atomic_read(&smtc_fpu_recoveries));
72 totalen += len;
73 page += len;
74 54
75 return totalen; 55static int smtc_proc_open(struct inode *inode, struct file *file)
56{
57 return single_open(file, smtc_proc_show, NULL);
76} 58}
77 59
60static const struct file_operations smtc_proc_fops = {
61 .open = smtc_proc_open,
62 .read = seq_read,
63 .llseek = seq_lseek,
64 .release = seq_release,
65};
66
78void init_smtc_stats(void) 67void init_smtc_stats(void)
79{ 68{
80 int i; 69 int i;
@@ -86,6 +75,5 @@ void init_smtc_stats(void)
86 75
87 atomic_set(&smtc_fpu_recoveries, 0); 76 atomic_set(&smtc_fpu_recoveries, 0);
88 77
89 smtc_stats = create_proc_read_entry("smtc", 0444, NULL, 78 proc_create("smtc", 0444, NULL, &smtc_proc_fops);
90 proc_read_smtc, NULL);
91} 79}