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)

1 files changed, 17 insertions, 11 deletions

diff --git a/arch/mips/oprofile/common.c b/arch/mips/oprofile/common.c
index ab65ce3d471a..dd2cc42f1b6d 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 @@ static int op_mips_create_files(struct super_block * sb, struct dentry * root)
                 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 @@ static void op_mips_stop(void)
         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 @@ void __init oprofile_arch_init(struct oprofile_operations *ops)
         };
 
         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)