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// SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note
/*
*
* (C) COPYRIGHT 2018-2023 ARM Limited. All rights reserved.
*
* This program is free software and is provided to you under the terms of the
* GNU General Public License version 2 as published by the Free Software
* Foundation, and any use by you of this program is subject to the terms
* of such GNU license.
*
* This program is distributed in the hope that 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, you can access it online at
* http://www.gnu.org/licenses/gpl-2.0.html.
*
*/
#include <linux/fs.h>
#include <linux/version.h>
#include <linux/module.h>
#if IS_ENABLED(CONFIG_DEBUG_FS)
#include <linux/debugfs.h>
#endif
#include <mali_kbase.h>
#include <csf/mali_kbase_csf_kcpu_fence_debugfs.h>
#include <mali_kbase_hwaccess_time.h>
#define BUF_SIZE 10
#if IS_ENABLED(CONFIG_DEBUG_FS)
static ssize_t kbase_csf_kcpu_queue_fence_signal_enabled_get(struct file *file, char __user *buf,
size_t count, loff_t *ppos)
{
int ret;
struct kbase_device *kbdev = file->private_data;
if (atomic_read(&kbdev->fence_signal_timeout_enabled))
ret = simple_read_from_buffer(buf, count, ppos, "1\n", 2);
else
ret = simple_read_from_buffer(buf, count, ppos, "0\n", 2);
return ret;
};
static ssize_t kbase_csf_kcpu_queue_fence_signal_enabled_set(struct file *file,
const char __user *buf, size_t count,
loff_t *ppos)
{
int ret;
unsigned int enabled;
struct kbase_device *kbdev = file->private_data;
ret = kstrtouint_from_user(buf, count, 10, &enabled);
if (ret < 0)
return ret;
atomic_set(&kbdev->fence_signal_timeout_enabled, enabled);
return count;
}
static const struct file_operations kbase_csf_kcpu_queue_fence_signal_fops = {
.owner = THIS_MODULE,
.read = kbase_csf_kcpu_queue_fence_signal_enabled_get,
.write = kbase_csf_kcpu_queue_fence_signal_enabled_set,
.open = simple_open,
.llseek = default_llseek,
};
static ssize_t kbase_csf_kcpu_queue_fence_signal_timeout_get(struct file *file, char __user *buf,
size_t count, loff_t *ppos)
{
int size;
char buffer[BUF_SIZE];
struct kbase_device *kbdev = file->private_data;
unsigned int timeout_ms = kbase_get_timeout_ms(kbdev, KCPU_FENCE_SIGNAL_TIMEOUT);
size = scnprintf(buffer, sizeof(buffer), "%u\n", timeout_ms);
return simple_read_from_buffer(buf, count, ppos, buffer, size);
}
static ssize_t kbase_csf_kcpu_queue_fence_signal_timeout_set(struct file *file,
const char __user *buf, size_t count,
loff_t *ppos)
{
int ret;
unsigned int timeout_ms;
struct kbase_device *kbdev = file->private_data;
ret = kstrtouint_from_user(buf, count, 10, &timeout_ms);
if (ret < 0)
return ret;
/* The timeout passed by the user is bounded when trying to insert it into
* the precomputed timeout table, so we don't need to do any more validation
* before-hand.
*/
kbase_device_set_timeout_ms(kbdev, KCPU_FENCE_SIGNAL_TIMEOUT, timeout_ms);
return count;
}
static const struct file_operations kbase_csf_kcpu_queue_fence_signal_timeout_fops = {
.owner = THIS_MODULE,
.read = kbase_csf_kcpu_queue_fence_signal_timeout_get,
.write = kbase_csf_kcpu_queue_fence_signal_timeout_set,
.open = simple_open,
.llseek = default_llseek,
};
int kbase_csf_fence_timer_debugfs_init(struct kbase_device *kbdev)
{
struct dentry *file;
const mode_t mode = 0644;
if (WARN_ON(IS_ERR_OR_NULL(kbdev->mali_debugfs_directory)))
return -1;
file = debugfs_create_file("fence_signal_timeout_enable", mode,
kbdev->mali_debugfs_directory, kbdev,
&kbase_csf_kcpu_queue_fence_signal_fops);
if (IS_ERR_OR_NULL(file)) {
dev_warn(kbdev->dev, "Unable to create fence signal timer toggle entry");
return -1;
}
file = debugfs_create_file("fence_signal_timeout_ms", mode, kbdev->mali_debugfs_directory,
kbdev, &kbase_csf_kcpu_queue_fence_signal_timeout_fops);
if (IS_ERR_OR_NULL(file)) {
dev_warn(kbdev->dev, "Unable to create fence signal timeout entry");
return -1;
}
return 0;
}
#else
int kbase_csf_fence_timer_debugfs_init(struct kbase_device *kbdev)
{
return 0;
}
#endif
void kbase_csf_fence_timer_debugfs_term(struct kbase_device *kbdev)
{
}
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