Home | History | Annotate | Line # | Download | only in virtio 
      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