| /* |
| * |
| * (C) COPYRIGHT 2012-2017 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. |
| * |
| * 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. |
| * |
| * SPDX-License-Identifier: GPL-2.0 |
| * |
| */ |
| |
| #include <mali_kbase.h> |
| |
| #ifdef CONFIG_DEBUG_FS |
| /** 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) |
| { |
| 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; |
| struct kbasep_kctx_list_element *element; |
| |
| kbdev = list_entry(entry, struct kbase_device, entry); |
| /* output the total memory usage and cap for this device */ |
| 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 */ |
| 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 0; |
| } |
| |
| /* |
| * 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 = single_release, |
| }; |
| |
| /* |
| * Initialize debugfs entry for gpu_memory |
| */ |
| void kbasep_gpu_memory_debugfs_init(struct kbase_device *kbdev) |
| { |
| debugfs_create_file("gpu_memory", S_IRUGO, |
| kbdev->mali_debugfs_directory, NULL, |
| &kbasep_gpu_memory_debugfs_fops); |
| return; |
| } |
| |
| #else |
| /* |
| * Stub functions for when debugfs is disabled |
| */ |
| void kbasep_gpu_memory_debugfs_init(struct kbase_device *kbdev) |
| { |
| return; |
| } |
| #endif |