commit 54176736f734ca3a1f27416d8e5804981a627076
author Ralf Baechle <ralf@linux-mips.org> Mon Feb 07 02:54:29 2005 +0000
committer Ralf Baechle <ralf@linux-mips.org> Sat Oct 29 19:30:27 2005 +0100
tree c304751efa231b2bb8a81eca4f399c122f3cf9fe
parent 29c4869946f9182f5d5f76502ac5a4a71b3b3e62

More oprofile bits for MIPS32-style performance counters.  The code to
bolt this into the actual hardware interrupt is yet missing from this
commit.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

 FEXPORT(ret_from_fork)

arch/mips/oprofile/common.c

diff --git a/arch/mips/oprofile/common.c b/arch/mips/oprofile/common.c
index ab65ce3..dd2cc42 100644
--- a/arch/mips/oprofile/common.c
+++ b/arch/mips/oprofile/common.c
@@ -3,7 +3,8 @@
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
  *
- * Copyright (C) 2004 by Ralf Baechle
+ * Copyright (C) 2004, 2005 Ralf Baechle
+ * Copyright (C) 2005 MIPS Technologies, Inc.
  */
 #include <linux/errno.h>
 #include <linux/init.h>
@@ -45,10 +46,10 @@
 		oprofilefs_create_ulong(sb, dir, "enabled", &ctr[i].enabled);
 		oprofilefs_create_ulong(sb, dir, "event", &ctr[i].event);
 		oprofilefs_create_ulong(sb, dir, "count", &ctr[i].count);
-		/* Dummies.  */
 		oprofilefs_create_ulong(sb, dir, "kernel", &ctr[i].kernel);
 		oprofilefs_create_ulong(sb, dir, "user", &ctr[i].user);
 		oprofilefs_create_ulong(sb, dir, "exl", &ctr[i].exl);
+		/* Dummy.  */
 		oprofilefs_create_ulong(sb, dir, "unit_mask", &ctr[i].unit_mask);
 	}
 
@@ -68,9 +69,10 @@
 	on_each_cpu(model->cpu_stop, NULL, 0, 1);
 }
 
-void __init oprofile_arch_init(struct oprofile_operations *ops)
+int __init oprofile_arch_init(struct oprofile_operations *ops)
 {
 	struct op_mips_model *lmodel = NULL;
+	int res;
 
 	switch (current_cpu_data.cputype) {
 	case CPU_24K:
@@ -83,21 +85,25 @@
 	};
 
 	if (!lmodel)
-		return;
+		return -ENODEV;
 
-	if (lmodel->init())
-		return;
+	res = lmodel->init();
+	if (res)
+		return res;
 
 	model = lmodel;
 
-	ops->create_files = op_mips_create_files;
-	ops->setup = op_mips_setup;
-	ops->start = op_mips_start;
-	ops->stop = op_mips_stop;
-	ops->cpu_type = lmodel->cpu_type;
+	ops->create_files	= op_mips_create_files;
+	ops->setup		= op_mips_setup;
+	//ops->shutdown         = op_mips_shutdown;
+	ops->start		= op_mips_start;
+	ops->stop		= op_mips_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)