1 files changed, 27 insertions, 115 deletions

diff --git a/arch/sh/oprofile/common.c b/arch/sh/oprofile/common.c
index 44f4e31c6d63..b4c2d2b946dd 100644
--- a/arch/sh/oprofile/common.c
+++ b/arch/sh/oprofile/common.c
@@ -1,7 +1,7 @@
 /*
  * arch/sh/oprofile/init.c
  *
- * Copyright (C) 2003 - 2008  Paul Mundt
+ * Copyright (C) 2003 - 2010  Paul Mundt
  *
  * Based on arch/mips/oprofile/common.c:
  *
@@ -17,136 +17,48 @@
 #include <linux/init.h>
 #include <linux/errno.h>
 #include <linux/smp.h>
+#include <linux/perf_event.h>
+#include <linux/slab.h>
 #include <asm/processor.h>
-#include "op_impl.h"
-
-extern struct op_sh_model op_model_sh7750_ops __weak;
-extern struct op_sh_model op_model_sh4a_ops __weak;
-
-static struct op_sh_model *model;
-
-static struct op_counter_config ctr[20];
 
 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)
-{
-	int i, ret = 0;
-
-	for (i = 0; i < model->num_counters; i++) {
-		struct dentry *dir;
-		char buf[4];
-
-		snprintf(buf, sizeof(buf), "%d", i);
-		dir = oprofilefs_mkdir(sb, root, 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;
-}
-
-static int op_sh_start(void)
-{
-	/* Enable performance monitoring for all counters.  */
-	on_each_cpu(model->cpu_start, NULL, 1);
-
-	return 0;
-}
+#ifdef CONFIG_HW_PERF_EVENTS
+/*
+ * This will need to be reworked when multiple PMUs are supported.
+ */
+static char *sh_pmu_op_name;
 
-static void op_sh_stop(void)
+char *op_name_from_perf_id(void)
 {
-	/* Disable performance monitoring for all counters.  */
-	on_each_cpu(model->cpu_stop, NULL, 1);
+	return sh_pmu_op_name;
 }
 
 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;
 
-	switch (current_cpu_data.type) {
-	/* SH-4 types */
-	case CPU_SH7750:
-	case CPU_SH7750S:
-		lmodel = &op_model_sh7750_ops;
-		break;
-
-        /* SH-4A types */
-	case CPU_SH7763:
-	case CPU_SH7770:
-	case CPU_SH7780:
-	case CPU_SH7781:
-	case CPU_SH7785:
-	case CPU_SH7786:
-	case CPU_SH7723:
-	case CPU_SH7724:
-	case CPU_SHX3:
-		lmodel = &op_model_sh4a_ops;
-		break;
-
-	/* SH4AL-DSP types */
-	case CPU_SH7343:
-	case CPU_SH7722:
-	case CPU_SH7366:
-		lmodel = &op_model_sh4a_ops;
-		break;
-	}
-
-	if (!lmodel)
+	if (perf_num_counters() == 0)
 		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);
+	sh_pmu_op_name = kasprintf(GFP_KERNEL, "%s/%s",
+				   UTS_MACHINE, perf_pmu_name());
+	if (unlikely(!sh_pmu_op_name))
+		return -ENOMEM;
 
-	return 0;
+	return oprofile_perf_init(ops);
 }
 
-void oprofile_arch_exit(void)
+void __exit oprofile_arch_exit(void)
 {
-	if (model && model->exit)
-		model->exit();
+	oprofile_perf_exit();
+	kfree(sh_pmu_op_name);
+}
+#else
+int __init oprofile_arch_init(struct oprofile_operations *ops)
+{
+	ops->backtrace = sh_backtrace;
+	return -ENODEV;
 }
+void __exit oprofile_arch_exit(void) {}
+#endif /* CONFIG_HW_PERF_EVENTS */