1 files changed, 23 insertions, 92 deletions

diff --git a/arch/sh/oprofile/common.c b/arch/sh/oprofile/common.c
index ac604937f3e..e10d89376f9 100644
--- a/arch/sh/oprofile/common.c
+++ b/arch/sh/oprofile/common.c
@@ -17,114 +17,45 @@
 #include <linux/init.h>
 #include <linux/errno.h>
 #include <linux/smp.h>
+#include <linux/perf_event.h>
 #include <asm/processor.h>
-#include "op_impl.h"
-
-static struct op_sh_model *model;
-
-static struct op_counter_config ctr[20];
 
+#ifdef CONFIG_HW_PERF_EVENTS
 extern void sh_backtrace(struct pt_regs * const regs, unsigned int depth);
 
-static int op_sh_setup(void)
-{
-        /* Pre-compute the values to stuff in the hardware registers.  */
-        model->reg_setup(ctr);
-
-        /* Configure the registers on all cpus.  */
-        on_each_cpu(model->cpu_setup, NULL, 1);
-
-        return 0;
-}
-
-static int op_sh_create_files(struct super_block *sb, struct dentry *root)
+char *op_name_from_perf_id(void)
 {
-        int i, ret = 0;
+        const char *pmu;
+        char buf[20];
+        int size;
 
-        for (i = 0; i < model->num_counters; i++) {
-                struct dentry *dir;
-                char buf[4];
+        pmu = perf_pmu_name();
+        if (!pmu)
+                return NULL;
 
-                snprintf(buf, sizeof(buf), "%d", i);
-                dir = oprofilefs_mkdir(sb, root, buf);
+        size = snprintf(buf, sizeof(buf), "sh/%s", pmu);
+        if (size > -1 && size < sizeof(buf))
+                return buf;
 
-                ret |= oprofilefs_create_ulong(sb, dir, "enabled", &ctr[i].enabled);
-                ret |= oprofilefs_create_ulong(sb, dir, "event", &ctr[i].event);
-                ret |= oprofilefs_create_ulong(sb, dir, "kernel", &ctr[i].kernel);
-                ret |= oprofilefs_create_ulong(sb, dir, "user", &ctr[i].user);
-
-                if (model->create_files)
-                        ret |= model->create_files(sb, dir);
-                else
-                        ret |= oprofilefs_create_ulong(sb, dir, "count", &ctr[i].count);
-
-                /* Dummy entries */
-                ret |= oprofilefs_create_ulong(sb, dir, "unit_mask", &ctr[i].unit_mask);
-        }
-
-        return ret;
+        return NULL;
 }
 
-static int op_sh_start(void)
+int __init oprofile_arch_init(struct oprofile_operations *ops)
 {
-        /* Enable performance monitoring for all counters.  */
-        on_each_cpu(model->cpu_start, NULL, 1);
+        ops->backtrace = sh_backtrace;
 
-        return 0;
+        return oprofile_perf_init(ops);
 }
 
-static void op_sh_stop(void)
+void __exit oprofile_arch_exit(void)
 {
-        /* Disable performance monitoring for all counters.  */
-        on_each_cpu(model->cpu_stop, NULL, 1);
+        oprofile_perf_exit();
 }
-
+#else
 int __init oprofile_arch_init(struct oprofile_operations *ops)
 {
-        struct op_sh_model *lmodel = NULL;
-        int ret;
-
-        /*
-         * Always assign the backtrace op. If the counter initialization
-         * fails, we fall back to the timer which will still make use of
-         * this.
-         */
-        ops->backtrace = sh_backtrace;
-
-        /*
-         * XXX
-         *
-         * All of the SH7750/SH-4A counters have been converted to perf,
-         * this infrastructure hook is left for other users until they've
-         * had a chance to convert over, at which point all of this
-         * will be deleted.
-         */
-
-        if (!lmodel)
-                return -ENODEV;
-        if (!(current_cpu_data.flags & CPU_HAS_PERF_COUNTER))
-                return -ENODEV;
-
-        ret = lmodel->init();
-        if (unlikely(ret != 0))
-                return ret;
-
-        model = lmodel;
-
-        ops->setup              = op_sh_setup;
-        ops->create_files       = op_sh_create_files;
-        ops->start              = op_sh_start;
-        ops->stop               = op_sh_stop;
-        ops->cpu_type           = lmodel->cpu_type;
-
-        printk(KERN_INFO "oprofile: using %s performance monitoring.\n",
-               lmodel->cpu_type);
-
-        return 0;
-}
-
-void oprofile_arch_exit(void)
-{
-        if (model && model->exit)
-                model->exit();
+        pr_info("oprofile: hardware counters not available\n");
+        return -ENODEV;
 }
+void __exit oprofile_arch_exit(void) {}
+#endif /* CONFIG_HW_PERF_EVENTS */