From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- drivers/gpu/drm/amd/amdkfd/kfd_debugfs.c | 111 +++++++++++++++++++++++++++++++ 1 file changed, 111 insertions(+) create mode 100644 drivers/gpu/drm/amd/amdkfd/kfd_debugfs.c (limited to 'drivers/gpu/drm/amd/amdkfd/kfd_debugfs.c') diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_debugfs.c b/drivers/gpu/drm/amd/amdkfd/kfd_debugfs.c new file mode 100644 index 000000000..ad5a40a68 --- /dev/null +++ b/drivers/gpu/drm/amd/amdkfd/kfd_debugfs.c @@ -0,0 +1,111 @@ +// SPDX-License-Identifier: GPL-2.0 OR MIT +/* + * Copyright 2016-2022 Advanced Micro Devices, Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + +#include +#include + +#include "kfd_priv.h" + +static struct dentry *debugfs_root; + +static int kfd_debugfs_open(struct inode *inode, struct file *file) +{ + int (*show)(struct seq_file *, void *) = inode->i_private; + + return single_open(file, show, NULL); +} +static int kfd_debugfs_hang_hws_read(struct seq_file *m, void *data) +{ + seq_puts(m, "echo gpu_id > hang_hws\n"); + return 0; +} + +static ssize_t kfd_debugfs_hang_hws_write(struct file *file, + const char __user *user_buf, size_t size, loff_t *ppos) +{ + struct kfd_dev *dev; + char tmp[16]; + uint32_t gpu_id; + int ret = -EINVAL; + + memset(tmp, 0, 16); + if (size >= 16) { + pr_err("Invalid input for gpu id.\n"); + goto out; + } + if (copy_from_user(tmp, user_buf, size)) { + ret = -EFAULT; + goto out; + } + if (kstrtoint(tmp, 10, &gpu_id)) { + pr_err("Invalid input for gpu id.\n"); + goto out; + } + dev = kfd_device_by_id(gpu_id); + if (dev) { + kfd_debugfs_hang_hws(dev); + ret = size; + } else + pr_err("Cannot find device %d.\n", gpu_id); + +out: + return ret; +} + +static const struct file_operations kfd_debugfs_fops = { + .owner = THIS_MODULE, + .open = kfd_debugfs_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static const struct file_operations kfd_debugfs_hang_hws_fops = { + .owner = THIS_MODULE, + .open = kfd_debugfs_open, + .read = seq_read, + .write = kfd_debugfs_hang_hws_write, + .llseek = seq_lseek, + .release = single_release, +}; + +void kfd_debugfs_init(void) +{ + debugfs_root = debugfs_create_dir("kfd", NULL); + + debugfs_create_file("mqds", S_IFREG | 0444, debugfs_root, + kfd_debugfs_mqds_by_process, &kfd_debugfs_fops); + debugfs_create_file("hqds", S_IFREG | 0444, debugfs_root, + kfd_debugfs_hqds_by_device, &kfd_debugfs_fops); + debugfs_create_file("rls", S_IFREG | 0444, debugfs_root, + kfd_debugfs_rls_by_device, &kfd_debugfs_fops); + debugfs_create_file("hang_hws", S_IFREG | 0200, debugfs_root, + kfd_debugfs_hang_hws_read, &kfd_debugfs_hang_hws_fops); + debugfs_create_file("mem_limit", S_IFREG | 0200, debugfs_root, + kfd_debugfs_kfd_mem_limits, &kfd_debugfs_fops); +} + +void kfd_debugfs_fini(void) +{ + debugfs_remove_recursive(debugfs_root); +} -- cgit v1.2.3