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/*
*
* (C) COPYRIGHT 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 licence.
*
* A copy of the licence is included with the program, and can also be obtained
* from Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#include <mali_kbase_gpu_memory_debugfs.h>
/** Show callback for the @c gpu_memory debugfs file.
*
* This function is called to get the contents of the @c gpu_memory debugfs
* file. This is a report of current gpu memory usage.
*
* @param sfile The debugfs entry
* @param data Data associated with the entry
*
* @return 0 if successfully prints data in debugfs entry file
* -1 if it encountered an error
*/
static int kbasep_gpu_memory_seq_show(struct seq_file *sfile, void *data)
{
ssize_t ret = 0;
struct list_head *entry;
const struct list_head *kbdev_list;
kbdev_list = kbase_dev_list_get();
list_for_each(entry, kbdev_list) {
struct kbase_device *kbdev = NULL;
kbasep_kctx_list_element *element;
kbdev = list_entry(entry, struct kbase_device, entry);
/* output the total memory usage and cap for this device */
ret = seq_printf(sfile, "%-16s %10u\n", \
kbdev->devname, \
atomic_read(&(kbdev->memdev.used_pages)));
mutex_lock(&kbdev->kctx_list_lock);
list_for_each_entry(element, &kbdev->kctx_list, link) {
/* output the memory usage and cap for each kctx
* opened on this device */
ret = seq_printf(sfile, " %s-0x%p %10u\n", \
"kctx",
element->kctx, \
atomic_read(&(element->kctx->used_pages)));
}
mutex_unlock(&kbdev->kctx_list_lock);
}
kbase_dev_list_put(kbdev_list);
return ret;
}
/*
* File operations related to debugfs entry for gpu_memory
*/
STATIC int kbasep_gpu_memory_debugfs_open(struct inode *in, struct file *file)
{
return single_open(file, kbasep_gpu_memory_seq_show , NULL);
}
static const struct file_operations kbasep_gpu_memory_debugfs_fops = {
.open = kbasep_gpu_memory_debugfs_open,
.read = seq_read,
.llseek = seq_lseek,
.release = seq_release_private,
};
/*
* Initialize debugfs entry for gpu_memory
*/
mali_error kbasep_gpu_memory_debugfs_init(kbase_device *kbdev)
{
kbdev->gpu_memory_dentry = debugfs_create_file("gpu_memory", \
S_IRUGO, \
kbdev->mali_debugfs_directory, \
NULL, \
&kbasep_gpu_memory_debugfs_fops);
if (IS_ERR(kbdev->gpu_memory_dentry))
return MALI_ERROR_FUNCTION_FAILED;
return MALI_ERROR_NONE;
}
/*
* Terminate debugfs entry for gpu_memory
*/
void kbasep_gpu_memory_debugfs_term(kbase_device *kbdev)
{
debugfs_remove(kbdev->gpu_memory_dentry);
}
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