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 <drm/drm_debugfs.h>
 27#include <drm/drm_file.h>
 28
 29#include "virtgpu_drv.h"
 30
 31static void virtio_gpu_add_bool(struct seq_file *m, const char *name,
 32				bool value)
 33{
 34	seq_printf(m, "%-16s : %s\n", name, value ? "yes" : "no");
 35}
 36
 37static void virtio_gpu_add_int(struct seq_file *m, const char *name, int value)
 38{
 39	seq_printf(m, "%-16s : %d\n", name, value);
 40}
 41
 42static int virtio_gpu_features(struct seq_file *m, void *data)
 43{
 44	struct drm_info_node *node = (struct drm_info_node *)m->private;
 45	struct virtio_gpu_device *vgdev = node->minor->dev->dev_private;
 46
 47	virtio_gpu_add_bool(m, "virgl", vgdev->has_virgl_3d);
 48	virtio_gpu_add_bool(m, "edid", vgdev->has_edid);
 49	virtio_gpu_add_bool(m, "indirect", vgdev->has_indirect);
 50
 51	virtio_gpu_add_bool(m, "resource uuid",
 52			    vgdev->has_resource_assign_uuid);
 53
 54	virtio_gpu_add_bool(m, "blob resources", vgdev->has_resource_blob);
 55	virtio_gpu_add_int(m, "cap sets", vgdev->num_capsets);
 56	virtio_gpu_add_int(m, "scanouts", vgdev->num_scanouts);
 57	if (vgdev->host_visible_region.len) {
 58		seq_printf(m, "%-16s : 0x%lx +0x%lx\n", "host visible region",
 59			   (unsigned long)vgdev->host_visible_region.addr,
 60			   (unsigned long)vgdev->host_visible_region.len);
 61	}
 62	return 0;
 63}
 64
 65static int
 66virtio_gpu_debugfs_irq_info(struct seq_file *m, void *data)
 67{
 68	struct drm_info_node *node = (struct drm_info_node *) m->private;
 69	struct virtio_gpu_device *vgdev = node->minor->dev->dev_private;
 70
 71	seq_printf(m, "fence %llu %lld\n",
 72		   (u64)atomic64_read(&vgdev->fence_drv.last_fence_id),
 73		   vgdev->fence_drv.current_fence_id);
 74	return 0;
 75}
 76
 77static int
 78virtio_gpu_debugfs_host_visible_mm(struct seq_file *m, void *data)
 79{
 80	struct drm_info_node *node = (struct drm_info_node *)m->private;
 81	struct virtio_gpu_device *vgdev = node->minor->dev->dev_private;
 82	struct drm_printer p;
 83
 84	if (!vgdev->has_host_visible) {
 85		seq_puts(m, "Host allocations not visible to guest\n");
 86		return 0;
 87	}
 88
 89	p = drm_seq_file_printer(m);
 90	drm_mm_print(&vgdev->host_visible_mm, &p);
 91	return 0;
 92}
 93
 94static struct drm_info_list virtio_gpu_debugfs_list[] = {
 95	{ "virtio-gpu-features", virtio_gpu_features },
 96	{ "virtio-gpu-irq-fence", virtio_gpu_debugfs_irq_info, 0, NULL },
 97	{ "virtio-gpu-host-visible-mm", virtio_gpu_debugfs_host_visible_mm },
 98};
 99
100#define VIRTIO_GPU_DEBUGFS_ENTRIES ARRAY_SIZE(virtio_gpu_debugfs_list)
101
102void
103virtio_gpu_debugfs_init(struct drm_minor *minor)
104{
105	drm_debugfs_create_files(virtio_gpu_debugfs_list,
106				 VIRTIO_GPU_DEBUGFS_ENTRIES,
107				 minor->debugfs_root, minor);
108}