107 lines
2.9 KiB
C
107 lines
2.9 KiB
C
|
/*
|
||
|
|
* drivers/video/tegra/nvmap/nvmap_stats.c
|
||
|
|
*
|
||
|
|
* Nvmap Stats keeping
|
||
|
|
*
|
||
|
|
* Copyright (c) 2011-2018, NVIDIA CORPORATION. All rights reserved.
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or modify it
|
||
|
|
* under the terms and conditions of the GNU General Public License,
|
||
|
|
* version 2, as published by the Free Software Foundation.
|
||
|
|
*
|
||
|
|
* This program is distributed in the hope it will be useful, but WITHOUT
|
||
|
|
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
||
|
|
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
|
||
|
|
* more details.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <linux/debugfs.h>
|
||
|
|
|
||
|
|
#include "nvmap_priv.h"
|
||
|
|
|
||
|
|
struct nvmap_stats nvmap_stats;
|
||
|
|
|
||
|
|
static int nvmap_stats_reset(void *data, u64 val)
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
|
||
|
|
if (val) {
|
||
|
|
atomic64_set(&nvmap_stats.collect, 0);
|
||
|
|
for (i = 0; i < NS_NUM; i++) {
|
||
|
|
if (i == NS_TOTAL)
|
||
|
|
continue;
|
||
|
|
atomic64_set(&nvmap_stats.stats[i], 0);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int nvmap_stats_get(void *data, u64 *val)
|
||
|
|
{
|
||
|
|
atomic64_t *ptr = data;
|
||
|
|
|
||
|
|
*val = atomic64_read(ptr);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int nvmap_stats_set(void *data, u64 val)
|
||
|
|
{
|
||
|
|
atomic64_t *ptr = data;
|
||
|
|
|
||
|
|
atomic64_set(ptr, val);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
DEFINE_SIMPLE_ATTRIBUTE(reset_stats_fops, NULL, nvmap_stats_reset, "%llu\n");
|
||
|
|
DEFINE_SIMPLE_ATTRIBUTE(stats_fops, nvmap_stats_get, nvmap_stats_set, "%llu\n");
|
||
|
|
|
||
|
|
void nvmap_stats_init(struct dentry *nvmap_debug_root)
|
||
|
|
{
|
||
|
|
struct dentry *stats_root;
|
||
|
|
|
||
|
|
#define CREATE_DF(x, y) \
|
||
|
|
debugfs_create_file(#x, S_IRUGO, stats_root, &y, &stats_fops);
|
||
|
|
|
||
|
|
stats_root = debugfs_create_dir("stats", nvmap_debug_root);
|
||
|
|
if (!IS_ERR_OR_NULL(stats_root)) {
|
||
|
|
CREATE_DF(alloc, nvmap_stats.stats[NS_ALLOC]);
|
||
|
|
CREATE_DF(release, nvmap_stats.stats[NS_RELEASE]);
|
||
|
|
CREATE_DF(ualloc, nvmap_stats.stats[NS_UALLOC]);
|
||
|
|
CREATE_DF(urelease, nvmap_stats.stats[NS_URELEASE]);
|
||
|
|
CREATE_DF(kalloc, nvmap_stats.stats[NS_KALLOC]);
|
||
|
|
CREATE_DF(krelease, nvmap_stats.stats[NS_KRELEASE]);
|
||
|
|
CREATE_DF(cflush_rq, nvmap_stats.stats[NS_CFLUSH_RQ]);
|
||
|
|
CREATE_DF(cflush_done, nvmap_stats.stats[NS_CFLUSH_DONE]);
|
||
|
|
CREATE_DF(ucflush_rq, nvmap_stats.stats[NS_UCFLUSH_RQ]);
|
||
|
|
CREATE_DF(ucflush_done, nvmap_stats.stats[NS_UCFLUSH_DONE]);
|
||
|
|
CREATE_DF(kcflush_rq, nvmap_stats.stats[NS_KCFLUSH_RQ]);
|
||
|
|
CREATE_DF(kcflush_done, nvmap_stats.stats[NS_KCFLUSH_DONE]);
|
||
|
|
CREATE_DF(total_memory, nvmap_stats.stats[NS_TOTAL]);
|
||
|
|
|
||
|
|
debugfs_create_file("collect", S_IRUGO | S_IWUSR,
|
||
|
|
stats_root, &nvmap_stats.collect, &stats_fops);
|
||
|
|
debugfs_create_file("reset", S_IWUSR,
|
||
|
|
stats_root, NULL, &reset_stats_fops);
|
||
|
|
}
|
||
|
|
|
||
|
|
#undef CREATE_DF
|
||
|
|
}
|
||
|
|
|
||
|
|
void nvmap_stats_inc(enum nvmap_stats_t stat, size_t size)
|
||
|
|
{
|
||
|
|
if (atomic64_read(&nvmap_stats.collect) || stat == NS_TOTAL)
|
||
|
|
atomic64_add(size, &nvmap_stats.stats[stat]);
|
||
|
|
}
|
||
|
|
|
||
|
|
void nvmap_stats_dec(enum nvmap_stats_t stat, size_t size)
|
||
|
|
{
|
||
|
|
if (atomic64_read(&nvmap_stats.collect) || stat == NS_TOTAL)
|
||
|
|
atomic64_sub(size, &nvmap_stats.stats[stat]);
|
||
|
|
}
|
||
|
|
|
||
|
|
u64 nvmap_stats_read(enum nvmap_stats_t stat)
|
||
|
|
{
|
||
|
|
return atomic64_read(&nvmap_stats.stats[stat]);
|
||
|
|
}
|
||
|
|
|