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852717ccc1
Bug 3384871 Change-Id: Ibc7be6d0a8985a87f70b352f2d9e5c233015c2a2 Signed-off-by: srajum <srajum@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2632438 Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com> Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com> Reviewed-by: Vaibhav Kachore <vkachore@nvidia.com> Reviewed-by: Ankur Kishore <ankkishore@nvidia.com> GVS: Gerrit_Virtual_Submit
72 lines
1.8 KiB
C
72 lines
1.8 KiB
C
/*
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* Copyright (c) 2018-2022, NVIDIA CORPORATION. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <nvgpu/types.h>
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#include <nvgpu/nvgpu_init.h>
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#include "debug_bios.h"
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#include "os_linux.h"
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#include <linux/debugfs.h>
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#include <linux/uaccess.h>
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static int bios_version_show(struct seq_file *s, void *unused)
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{
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struct gk20a *g = s->private;
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int err;
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err = gk20a_busy(g);
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if (err != 0) {
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return err;
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}
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seq_printf(s, "Version %02X.%02X.%02X.%02X.%02X\n",
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(g->bios->vbios_version >> 24) & 0xFF,
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(g->bios->vbios_version >> 16) & 0xFF,
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(g->bios->vbios_version >> 8) & 0xFF,
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(g->bios->vbios_version >> 0) & 0xFF,
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(g->bios->vbios_oem_version) & 0xFF);
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gk20a_idle(g);
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return 0;
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}
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static int bios_version_open(struct inode *inode, struct file *file)
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{
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return single_open(file, bios_version_show, inode->i_private);
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}
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static const struct file_operations bios_version_fops = {
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.open = bios_version_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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int nvgpu_bios_debugfs_init(struct gk20a *g)
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{
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struct nvgpu_os_linux *l = nvgpu_os_linux_from_gk20a(g);
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struct dentry *gpu_root = l->debugfs;
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debugfs_create_file("bios", S_IRUGO,
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gpu_root, g,
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&bios_version_fops);
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return 0;
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}
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