diff options
Diffstat (limited to 'drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_debugfs.c')
| -rw-r--r-- | drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_debugfs.c | 229 |
1 files changed, 229 insertions, 0 deletions
diff --git a/drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_debugfs.c b/drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_debugfs.c new file mode 100644 index 000000000000..46c3b06efd2d --- /dev/null +++ b/drivers/mxc/gpu-viv/hal/os/linux/kernel/gc_hal_kernel_debugfs.c @@ -0,0 +1,229 @@ +/**************************************************************************** +* +* The MIT License (MIT) +* +* Copyright (c) 2014 - 2020 Vivante Corporation +* +* Permission is hereby granted, free of charge, to any person obtaining a +* copy of this software and associated documentation files (the "Software"), +* to deal in the Software without restriction, including without limitation +* the rights to use, copy, modify, merge, publish, distribute, sublicense, +* and/or sell copies of the Software, and to permit persons to whom the +* Software is furnished to do so, subject to the following conditions: +* +* The above copyright notice and this permission notice shall be included in +* all copies or substantial portions of the Software. +* +* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING +* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER +* DEALINGS IN THE SOFTWARE. +* +***************************************************************************** +* +* The GPL License (GPL) +* +* Copyright (C) 2014 - 2020 Vivante Corporation +* +* This program is free software; you can redistribute it and/or +* modify it under the terms of the GNU General Public License +* as published by the Free Software Foundation; either version 2 +* of the License, or (at your option) any later version. +* +* 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, write to the Free Software Foundation, +* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. +* +***************************************************************************** +* +* Note: This software is released under dual MIT and GPL licenses. A +* recipient may use this file under the terms of either the MIT license or +* GPL License. If you wish to use only one license not the other, you can +* indicate your decision by deleting one of the above license notices in your +* version of this file. +* +*****************************************************************************/ + + +#ifdef MODULE +#include <linux/module.h> +#endif +#include <linux/init.h> +#include <linux/debugfs.h> +#include <linux/slab.h> +#ifdef MODVERSIONS +#include <linux/modversions.h> +#endif +#include <linux/stddef.h> +#include <linux/sched.h> +#include <linux/kernel.h> +#include <linux/timer.h> +#include <linux/delay.h> +#include <linux/errno.h> +#include <linux/mutex.h> +#include <linux/vmalloc.h> +#include <linux/types.h> +#include <linux/fs.h> +#include <linux/poll.h> +#include <asm/uaccess.h> +#include <linux/completion.h> +#include <linux/seq_file.h> +#include "gc_hal_kernel_linux.h" +#include "gc_hal_kernel.h" +#include "gc_hal_kernel_debug.h" + + +#define _GC_OBJ_ZONE gcvZONE_KERNEL + +static int gc_debugfs_open(struct inode *inode, struct file *file) +{ + gcsINFO_NODE *node = inode->i_private; + + return single_open(file, node->info->show, node); +} + +static ssize_t +gc_debugfs_write( + struct file *file, + const char __user *buf, + size_t count, + loff_t *pos + ) +{ + struct seq_file *s = file->private_data; + gcsINFO_NODE *node = s->private; + gcsINFO *info = node->info; + + if (info->write) + { + info->write(buf, count, node); + } + + return count; +} + +static const struct file_operations gc_debugfs_operations = { + .owner = THIS_MODULE, + .open = gc_debugfs_open, + .write = gc_debugfs_write, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +gceSTATUS +gckDEBUGFS_DIR_Init( + IN gckDEBUGFS_DIR Dir, + IN struct dentry *root, + IN gctCONST_STRING Name + ) +{ + Dir->root = debugfs_create_dir(Name, root); + + if (!Dir->root) + { + return gcvSTATUS_NOT_SUPPORTED; + } + + INIT_LIST_HEAD(&Dir->nodeList); + + return gcvSTATUS_OK; +} + +gceSTATUS +gckDEBUGFS_DIR_CreateFiles( + IN gckDEBUGFS_DIR Dir, + IN gcsINFO * List, + IN int count, + IN gctPOINTER Data + ) +{ + int i; + gcsINFO_NODE * node; + gceSTATUS status = gcvSTATUS_OK; + + gcmkHEADER_ARG("Dir=%p List=%p count=%d Data=%p", Dir, List, count, Data); + + for (i = 0; i < count; i++) + { + umode_t mode = 0; + + /* Create a node. */ + node = (gcsINFO_NODE *)kzalloc(sizeof(gcsINFO_NODE), GFP_KERNEL); + + node->info = &List[i]; + node->device = Data; + + mode |= List[i].show ? S_IRUGO : 0; + mode |= List[i].write ? S_IWUSR : 0; + + node->entry = debugfs_create_file( + List[i].name, mode, Dir->root, node, &gc_debugfs_operations); + + if (!node->entry) + { + gcmkONERROR(gcvSTATUS_OUT_OF_MEMORY); + } + + list_add(&(node->head), &(Dir->nodeList)); + } + +OnError: + if (gcmIS_ERROR(status)) + { + gcmkVERIFY_OK(gckDEBUGFS_DIR_RemoveFiles(Dir, List, count)); + } + gcmkFOOTER(); + return status; +} + +gceSTATUS +gckDEBUGFS_DIR_RemoveFiles( + IN gckDEBUGFS_DIR Dir, + IN gcsINFO * List, + IN int count + ) +{ + int i; + gcsINFO_NODE * node; + gcsINFO_NODE * temp; + + gcmkHEADER_ARG("Dir=%p List=%p count=%d", Dir, List, count); + + for (i = 0; i < count; i++) + { + list_for_each_entry_safe(node, temp, &Dir->nodeList, head) + { + if (node->info == &List[i]) + { + debugfs_remove(node->entry); + list_del(&node->head); + kfree(node); + } + } + } + + gcmkFOOTER_NO(); + return gcvSTATUS_OK; +} + +void +gckDEBUGFS_DIR_Deinit( + IN gckDEBUGFS_DIR Dir + ) +{ + if (Dir->root != NULL) + { + debugfs_remove(Dir->root); + Dir->root = NULL; + } +} + |