From 01e6fac4d61fdd7fff5433942ec93fc2ea1e4df1 Mon Sep 17 00:00:00 2001 From: Joshua Bakita Date: Wed, 28 Jun 2023 18:24:25 -0400 Subject: Include nvgpu headers These are needed to build on NVIDIA's Jetson boards for the time being. Only a couple structs are required, so it should be fairly easy to remove this dependency at some point in the future. --- include/os/linux/debug_ltc.c | 94 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 94 insertions(+) create mode 100644 include/os/linux/debug_ltc.c (limited to 'include/os/linux/debug_ltc.c') diff --git a/include/os/linux/debug_ltc.c b/include/os/linux/debug_ltc.c new file mode 100644 index 0000000..1b4c221 --- /dev/null +++ b/include/os/linux/debug_ltc.c @@ -0,0 +1,94 @@ +/* + * 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 "debug_ltc.h" +#include "os_linux.h" + +#include + +#include +#include + +static ssize_t ltc_intr_illegal_compstat_read(struct file *file, + char __user *user_buf, size_t count, loff_t *ppos) +{ + char buf[3]; + struct gk20a *g = file->private_data; + + if (g->ltc_intr_en_illegal_compstat) + buf[0] = 'Y'; + else + buf[0] = 'N'; + buf[1] = '\n'; + buf[2] = 0x00; + + return simple_read_from_buffer(user_buf, count, ppos, buf, 2); +} + +static ssize_t ltc_intr_illegal_compstat_write(struct file *file, + const char __user *user_buf, size_t count, loff_t *ppos) +{ + char buf[3]; + int buf_size; + bool intr_illegal_compstat_enabled; + struct gk20a *g = file->private_data; + int err; + + if (!g->ops.ltc.intr_en_illegal_compstat) + return -EINVAL; + + buf_size = min(count, (sizeof(buf)-1)); + if (copy_from_user(buf, user_buf, buf_size)) + return -EFAULT; + + err = gk20a_busy(g); + if (err) + return err; + + if (strtobool(buf, &intr_illegal_compstat_enabled) == 0) { + g->ops.ltc.intr_en_illegal_compstat(g, + intr_illegal_compstat_enabled); + g->ltc_intr_en_illegal_compstat = intr_illegal_compstat_enabled; + } + + gk20a_idle(g); + + return buf_size; +} + +static const struct file_operations ltc_intr_illegal_compstat_fops = { + .open = simple_open, + .read = ltc_intr_illegal_compstat_read, + .write = ltc_intr_illegal_compstat_write, +}; + +int nvgpu_ltc_debugfs_init(struct gk20a *g) +{ + struct dentry *d; + struct nvgpu_os_linux *l = nvgpu_os_linux_from_gk20a(g); + struct dentry *gpu_root = l->debugfs; + + l->debugfs_ltc = debugfs_create_dir("ltc", gpu_root); + if (IS_ERR_OR_NULL(l->debugfs_ltc)) + return -ENODEV; + + /* Debug fs node to enable/disable illegal_compstat */ + d = debugfs_create_file("intr_illegal_compstat_enable", 0600, + l->debugfs_ltc, g, + <c_intr_illegal_compstat_fops); + if (!d) + return -ENOMEM; + + return 0; +} -- cgit v1.2.2