x86/efi: Enforce CONFIG_RELOCATABLE for EFI boot stub
[linux/fpc-iii.git] / arch / mips / oprofile / common.c
blob4d1736fc19557b793fd707f2543500a043bf6488
1 /*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
6 * Copyright (C) 2004, 2005 Ralf Baechle
7 * Copyright (C) 2005 MIPS Technologies, Inc.
8 */
9 #include <linux/compiler.h>
10 #include <linux/errno.h>
11 #include <linux/init.h>
12 #include <linux/oprofile.h>
13 #include <linux/smp.h>
14 #include <asm/cpu-info.h>
15 #include <asm/cpu-type.h>
17 #include "op_impl.h"
19 extern struct op_mips_model op_model_mipsxx_ops __weak;
20 extern struct op_mips_model op_model_loongson2_ops __weak;
22 static struct op_mips_model *model;
24 static struct op_counter_config ctr[20];
26 static int op_mips_setup(void)
28 /* Pre-compute the values to stuff in the hardware registers. */
29 model->reg_setup(ctr);
31 /* Configure the registers on all cpus. */
32 on_each_cpu(model->cpu_setup, NULL, 1);
34 return 0;
37 static int op_mips_create_files(struct dentry *root)
39 int i;
41 for (i = 0; i < model->num_counters; ++i) {
42 struct dentry *dir;
43 char buf[4];
45 snprintf(buf, sizeof buf, "%d", i);
46 dir = oprofilefs_mkdir(root, buf);
48 oprofilefs_create_ulong(dir, "enabled", &ctr[i].enabled);
49 oprofilefs_create_ulong(dir, "event", &ctr[i].event);
50 oprofilefs_create_ulong(dir, "count", &ctr[i].count);
51 oprofilefs_create_ulong(dir, "kernel", &ctr[i].kernel);
52 oprofilefs_create_ulong(dir, "user", &ctr[i].user);
53 oprofilefs_create_ulong(dir, "exl", &ctr[i].exl);
54 /* Dummy. */
55 oprofilefs_create_ulong(dir, "unit_mask", &ctr[i].unit_mask);
58 return 0;
61 static int op_mips_start(void)
63 on_each_cpu(model->cpu_start, NULL, 1);
65 return 0;
68 static void op_mips_stop(void)
70 /* Disable performance monitoring for all counters. */
71 on_each_cpu(model->cpu_stop, NULL, 1);
74 int __init oprofile_arch_init(struct oprofile_operations *ops)
76 struct op_mips_model *lmodel = NULL;
77 int res;
79 switch (current_cpu_type()) {
80 case CPU_5KC:
81 case CPU_M14KC:
82 case CPU_M14KEC:
83 case CPU_20KC:
84 case CPU_24K:
85 case CPU_25KF:
86 case CPU_34K:
87 case CPU_1004K:
88 case CPU_74K:
89 case CPU_LOONGSON1:
90 case CPU_SB1:
91 case CPU_SB1A:
92 case CPU_R10000:
93 case CPU_R12000:
94 case CPU_R14000:
95 case CPU_XLR:
96 lmodel = &op_model_mipsxx_ops;
97 break;
99 case CPU_LOONGSON2:
100 lmodel = &op_model_loongson2_ops;
101 break;
104 if (!lmodel)
105 return -ENODEV;
107 res = lmodel->init();
108 if (res)
109 return res;
111 model = lmodel;
113 ops->create_files = op_mips_create_files;
114 ops->setup = op_mips_setup;
115 //ops->shutdown = op_mips_shutdown;
116 ops->start = op_mips_start;
117 ops->stop = op_mips_stop;
118 ops->cpu_type = lmodel->cpu_type;
119 ops->backtrace = op_mips_backtrace;
121 printk(KERN_INFO "oprofile: using %s performance monitoring.\n",
122 lmodel->cpu_type);
124 return 0;
127 void oprofile_arch_exit(void)
129 if (model)
130 model->exit();