/*
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*
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* (C) COPYRIGHT 2012-2016 ARM Limited. All rights reserved.
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*
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* This program is free software and is provided to you under the terms of the
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* GNU General Public License version 2 as published by the Free Software
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* Foundation, and any use by you of this program is subject to the terms
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* of such GNU licence.
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*
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* A copy of the licence is included with the program, and can also be obtained
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* from Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*
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*/
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#include <mali_kbase.h>
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#ifdef CONFIG_DEBUG_FS
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/** Show callback for the @c gpu_memory debugfs file.
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*
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* This function is called to get the contents of the @c gpu_memory debugfs
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* file. This is a report of current gpu memory usage.
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*
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* @param sfile The debugfs entry
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* @param data Data associated with the entry
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*
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* @return 0 if successfully prints data in debugfs entry file
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* -1 if it encountered an error
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*/
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static int kbasep_gpu_memory_seq_show(struct seq_file *sfile, void *data)
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{
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struct list_head *entry;
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const struct list_head *kbdev_list;
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kbdev_list = kbase_dev_list_get();
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list_for_each(entry, kbdev_list) {
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struct kbase_device *kbdev = NULL;
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struct kbasep_kctx_list_element *element;
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kbdev = list_entry(entry, struct kbase_device, entry);
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/* output the total memory usage and cap for this device */
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seq_printf(sfile, "%-16s %10u\n",
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kbdev->devname,
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atomic_read(&(kbdev->memdev.used_pages)));
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mutex_lock(&kbdev->kctx_list_lock);
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list_for_each_entry(element, &kbdev->kctx_list, link) {
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/* output the memory usage and cap for each kctx
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* opened on this device */
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seq_printf(sfile, " %s-0x%p %10u\n",
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"kctx",
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element->kctx,
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atomic_read(&(element->kctx->used_pages)));
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}
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mutex_unlock(&kbdev->kctx_list_lock);
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}
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kbase_dev_list_put(kbdev_list);
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return 0;
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}
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/*
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* File operations related to debugfs entry for gpu_memory
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*/
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static int kbasep_gpu_memory_debugfs_open(struct inode *in, struct file *file)
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{
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return single_open(file, kbasep_gpu_memory_seq_show , NULL);
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}
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static const struct file_operations kbasep_gpu_memory_debugfs_fops = {
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.open = kbasep_gpu_memory_debugfs_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = single_release,
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};
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/*
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* Initialize debugfs entry for gpu_memory
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*/
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void kbasep_gpu_memory_debugfs_init(struct kbase_device *kbdev)
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{
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debugfs_create_file("gpu_memory", S_IRUGO,
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kbdev->mali_debugfs_directory, NULL,
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&kbasep_gpu_memory_debugfs_fops);
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return;
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}
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#else
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/*
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* Stub functions for when debugfs is disabled
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*/
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void kbasep_gpu_memory_debugfs_init(struct kbase_device *kbdev)
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{
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return;
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}
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#endif
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