1 /* $NetBSD: virtgpu_debugfs.c,v 1.3 2021/12/18 23:45:45 riastradh Exp $ */ 2 3 /* 4 * Copyright (C) 2015 Red Hat, Inc. 5 * All Rights Reserved. 6 * 7 * Permission is hereby granted, free of charge, to any person obtaining 8 * a copy of this software and associated documentation files (the 9 * "Software"), to deal in the Software without restriction, including 10 * without limitation the rights to use, copy, modify, merge, publish, 11 * distribute, sublicense, and/or sell copies of the Software, and to 12 * permit persons to whom the Software is furnished to do so, subject to 13 * the following conditions: 14 * 15 * The above copyright notice and this permission notice (including the 16 * next paragraph) shall be included in all copies or substantial 17 * portions of the Software. 18 * 19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 20 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 22 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE 23 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 24 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 25 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 26 */ 27 28 #include <sys/cdefs.h> 29 __KERNEL_RCSID(0, "$NetBSD: virtgpu_debugfs.c,v 1.3 2021/12/18 23:45:45 riastradh Exp $"); 30 31 #include <drm/drm_debugfs.h> 32 #include <drm/drm_file.h> 33 34 #include "virtgpu_drv.h" 35 36 static void virtio_add_bool(struct seq_file *m, const char *name, 37 bool value) 38 { 39 seq_printf(m, "%-16s : %s\n", name, value ? "yes" : "no"); 40 } 41 42 static void virtio_add_int(struct seq_file *m, const char *name, 43 int value) 44 { 45 seq_printf(m, "%-16s : %d\n", name, value); 46 } 47 48 static int virtio_gpu_features(struct seq_file *m, void *data) 49 { 50 struct drm_info_node *node = (struct drm_info_node *) m->private; 51 struct virtio_gpu_device *vgdev = node->minor->dev->dev_private; 52 53 virtio_add_bool(m, "virgl", vgdev->has_virgl_3d); 54 virtio_add_bool(m, "edid", vgdev->has_edid); 55 virtio_add_int(m, "cap sets", vgdev->num_capsets); 56 virtio_add_int(m, "scanouts", vgdev->num_scanouts); 57 return 0; 58 } 59 60 static int 61 virtio_gpu_debugfs_irq_info(struct seq_file *m, void *data) 62 { 63 struct drm_info_node *node = (struct drm_info_node *) m->private; 64 struct virtio_gpu_device *vgdev = node->minor->dev->dev_private; 65 66 seq_printf(m, "fence %llu %lld\n", 67 (u64)atomic64_read(&vgdev->fence_drv.last_seq), 68 vgdev->fence_drv.sync_seq); 69 return 0; 70 } 71 72 static struct drm_info_list virtio_gpu_debugfs_list[] = { 73 { "virtio-gpu-features", virtio_gpu_features }, 74 { "virtio-gpu-irq-fence", virtio_gpu_debugfs_irq_info, 0, NULL }, 75 }; 76 77 #define VIRTIO_GPU_DEBUGFS_ENTRIES ARRAY_SIZE(virtio_gpu_debugfs_list) 78 79 int 80 virtio_gpu_debugfs_init(struct drm_minor *minor) 81 { 82 drm_debugfs_create_files(virtio_gpu_debugfs_list, 83 VIRTIO_GPU_DEBUGFS_ENTRIES, 84 minor->debugfs_root, minor); 85 return 0; 86 } 87