/*
* Copyright (C) 2017-2020 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 "debug_sched.h"
#include "os_linux.h"
#include <linux/debugfs.h>
#include <linux/seq_file.h>
static int gk20a_sched_debugfs_show(struct seq_file *s, void *unused)
{
struct gk20a *g = s->private;
struct nvgpu_sched_ctrl *sched = &g->sched_ctrl;
bool sched_busy = true;
int n = sched->bitmap_size / sizeof(u64);
int i;
int err;
err = gk20a_busy(g);
if (err)
return err;
if (nvgpu_mutex_tryacquire(&sched->busy_lock)) {
sched_busy = false;
nvgpu_mutex_release(&sched->busy_lock);
}
seq_printf(s, "control_locked=%d\n", sched->control_locked);
seq_printf(s, "busy=%d\n", sched_busy);
seq_printf(s, "bitmap_size=%zu\n", sched->bitmap_size);
nvgpu_mutex_acquire(&sched->status_lock);
seq_puts(s, "active_tsg_bitmap\n");
for (i = 0; i < n; i++)
seq_printf(s, "\t0x%016llx\n", sched->active_tsg_bitmap[i]);
seq_puts(s, "recent_tsg_bitmap\n");
for (i = 0; i < n; i++)
seq_printf(s, "\t0x%016llx\n", sched->recent_tsg_bitmap[i]);
nvgpu_mutex_release(&sched->status_lock);
gk20a_idle(g);
return 0;
}
static int gk20a_sched_debugfs_open(struct inode *inode, struct file *file)
{
return single_open(file, gk20a_sched_debugfs_show, inode->i_private);
}
static const struct file_operations gk20a_sched_debugfs_fops = {
.open = gk20a_sched_debugfs_open,
.read = seq_read,
.llseek = seq_lseek,
.release = single_release,
};
void gk20a_sched_debugfs_init(struct gk20a *g)
{
struct nvgpu_os_linux *l = nvgpu_os_linux_from_gk20a(g);
debugfs_create_file("sched_ctrl", S_IRUGO, l->debugfs,
g, &gk20a_sched_debugfs_fops);
}
