xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

More oprofile bits for MIPS32-style performance counters. The code to

Browse Source 
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)
This commit is contained in:
Ralf Baechle
2005-02-07 02:54:29 +00:00
parent 29c4869946
commit 54176736f7
4 changed files with 238 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

28
arch/mips/oprofile/common.c
View File

@@ -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)