1 /* 2 * Copyright (C) 2015 Red Hat, Inc. 3 * All Rights Reserved. 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining 6 * a copy of this software and associated documentation files (the 7 * "Software"), to deal in the Software without restriction, including 8 * without limitation the rights to use, copy, modify, merge, publish, 9 * distribute, sublicense, and/or sell copies of the Software, and to 10 * permit persons to whom the Software is furnished to do so, subject to 11 * the following conditions: 12 * 13 * The above copyright notice and this permission notice (including the 14 * next paragraph) shall be included in all copies or substantial 15 * portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 20 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE 21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 24 */ 25 26 #include <linux/debugfs.h> 27 #include <drm/drmP.h> 28 29 #include "virtgpu_drv.h" 30 31 static int 32 virtio_gpu_debugfs_irq_info(struct seq_file *m, void *data) 33 { 34 struct drm_info_node *node = (struct drm_info_node *) m->private; 35 struct virtio_gpu_device *vgdev = node->minor->dev->dev_private; 36 37 seq_printf(m, "fence %llu %lld\n", 38 (u64)atomic64_read(&vgdev->fence_drv.last_seq), 39 vgdev->fence_drv.sync_seq); 40 return 0; 41 } 42 43 static struct drm_info_list virtio_gpu_debugfs_list[] = { 44 { "irq_fence", virtio_gpu_debugfs_irq_info, 0, NULL }, 45 }; 46 47 #define VIRTIO_GPU_DEBUGFS_ENTRIES ARRAY_SIZE(virtio_gpu_debugfs_list) 48 49 int 50 virtio_gpu_debugfs_init(struct drm_minor *minor) 51 { 52 drm_debugfs_create_files(virtio_gpu_debugfs_list, 53 VIRTIO_GPU_DEBUGFS_ENTRIES, 54 minor->debugfs_root, minor); 55 return 0; 56 } 57