Files
linux-nvgpu/drivers/gpu/nvgpu/os/linux/debug_bios.c
Divya Singhatwaria 20fcf813dd gpu: nvgpu: Use sw ops for BIOS
Some functions are not accessing hardware directly
but are being called using HAL ops: For example

.init = gv100_bios_init,
.preos_wait_for_halt = gv100_bios_preos_wait_for_halt,
.preos_reload_check = gv100_bios_preos_reload_check,
.devinit = gp106_bios_devinit,
.preos = gp106_bios_preos,
.verify_devinit = NULL,

This was being called as:
g->ops.bios.init(g)
g->ops.bios.preos_wait_for_halt(g)
g->ops.bios.preos_reload_check(g)
g->ops.bios.preos(g)
g->ops.bios.devinit(g)
g->ops.bios.verify_devinit(g)

Change the function access by using sw ops, like:
Create new function: nvgpu_bios_sw_init()
and based on hardware chip call the chip specific
bios sw init function: nvgpu_gv100_bios_sw_init()
and nvgpu_tu104_bios_sw_init()to assign the sw
ops

JIRA NVGPU-2071

Change-Id: Ibfcd9b225a7bc184737abdd94c2e54190fcd90a0
Signed-off-by: Divya Singhatwaria <dsinghatwari@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2108526
GVS: Gerrit_Virtual_Submit
Reviewed-by: Mahantesh Kumbar <mkumbar@nvidia.com>
Reviewed-by: Vaibhav Kachore <vkachore@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
2019-05-28 02:05:43 -07:00

61 lines
1.5 KiB
C

/*
* Copyright (C) 2018-2019 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;
}