/*
* Copyright (C) 2018 NVIDIA Corporation. All rights reserved.
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* 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.
*
*/
#include <nvgpu/types.h>
#include "debug_bios.h"
#include "os_linux.h"
#include <linux/debugfs.h>
#include <linux/uaccess.h>
static int bios_version_show(struct seq_file *s, void *unused)
{
struct gk20a *g = s->private;
seq_printf(s, "Version %02x.%02x.%02x.%02x.%02x\n",
(g->bios.vbios_version >> 24) & 0xFF,
(g->bios.vbios_version >> 16) & 0xFF,
(g->bios.vbios_version >> 8) & 0xFF,
(g->bios.vbios_version >> 0) & 0xFF,
(g->bios.vbios_oem_version) & 0xFF);
return 0;
}
static int bios_version_open(struct inode *inode, struct file *file)
{
return single_open(file, bios_version_show, inode->i_private);
}
static const struct file_operations bios_version_fops = {
.open = bios_version_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
int nvgpu_bios_debugfs_init(struct gk20a *g)
{
struct nvgpu_os_linux *l = nvgpu_os_linux_from_gk20a(g);
struct dentry *gpu_root = l->debugfs;
debugfs_create_file("bios", S_IRUGO,
gpu_root, g,
&bios_version_fops);
return 0;
}
