mirror of
git://nv-tegra.nvidia.com/linux-nvgpu.git
synced 2025-12-22 17:36:20 +03:00
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
98 lines
2.6 KiB
C
98 lines
2.6 KiB
C
/*
|
|
* Copyright (c) 2017-2022, NVIDIA CORPORATION. All rights reserved.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms and conditions of the GNU General Public License,
|
|
* version 2, as published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope 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, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include "debug_hal.h"
|
|
#include "os_linux.h"
|
|
|
|
#include <linux/debugfs.h>
|
|
#include <linux/seq_file.h>
|
|
|
|
/* Format and print a single function pointer to the specified seq_file. */
|
|
static void __hal_print_op(struct seq_file *s, void *op_ptr)
|
|
{
|
|
seq_printf(s, "%pF\n", op_ptr);
|
|
}
|
|
|
|
/*
|
|
* Prints an array of function pointer addresses in op_ptrs to the
|
|
* specified seq_file
|
|
*/
|
|
static void __hal_print_ops(struct seq_file *s, void **op_ptrs, int num_ops)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < num_ops; i++)
|
|
__hal_print_op(s, op_ptrs[i]);
|
|
}
|
|
|
|
/*
|
|
* Show file operation, which generates content of the file once. Prints a list
|
|
* of gpu operations as defined by gops and the corresponding function pointer
|
|
* destination addresses. Relies on no compiler reordering of struct fields and
|
|
* assumption that all members are function pointers.
|
|
*/
|
|
static int __hal_show(struct seq_file *s, void *unused)
|
|
{
|
|
struct gpu_ops *gops = s->private;
|
|
|
|
__hal_print_ops(s, (void **)gops, sizeof(*gops) / sizeof(void *));
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int __hal_open(struct inode *inode, struct file *file)
|
|
{
|
|
return single_open(file, __hal_show, inode->i_private);
|
|
}
|
|
|
|
static const struct file_operations __hal_fops = {
|
|
.open = __hal_open,
|
|
.read = seq_read,
|
|
.llseek = seq_lseek,
|
|
.release = single_release,
|
|
};
|
|
|
|
void nvgpu_hal_debugfs_fini(struct gk20a *g)
|
|
{
|
|
struct nvgpu_os_linux *l = nvgpu_os_linux_from_gk20a(g);
|
|
|
|
if (!(l->debugfs_hal == NULL))
|
|
debugfs_remove_recursive(l->debugfs_hal);
|
|
}
|
|
|
|
void nvgpu_hal_debugfs_init(struct gk20a *g)
|
|
{
|
|
struct dentry *d;
|
|
struct nvgpu_os_linux *l = nvgpu_os_linux_from_gk20a(g);
|
|
|
|
if (!l->debugfs)
|
|
return;
|
|
l->debugfs_hal = debugfs_create_dir("hal", l->debugfs);
|
|
if (IS_ERR_OR_NULL(l->debugfs_hal)) {
|
|
l->debugfs_hal = NULL;
|
|
return;
|
|
}
|
|
|
|
/* Pass along reference to the gpu_ops struct as private data */
|
|
d = debugfs_create_file("gops", S_IRUGO, l->debugfs_hal,
|
|
&g->ops, &__hal_fops);
|
|
if (!d) {
|
|
nvgpu_err(g, "%s: Failed to make debugfs node\n", __func__);
|
|
debugfs_remove_recursive(l->debugfs_hal);
|
|
return;
|
|
}
|
|
}
|