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/string_helpers.h>
 27
 28#include <drm/drm_debugfs.h>
 29#include <drm/drm_file.h>
 30
 31#include "virtgpu_drv.h"
 32
 33static void virtio_gpu_add_bool(struct seq_file *m, const char *name,
 34				bool value)
 35{
 36	seq_printf(m, "%-16s : %s\n", name, str_yes_no(value));
 37}
 38
 39static void virtio_gpu_add_int(struct seq_file *m, const char *name, int value)
 40{
 41	seq_printf(m, "%-16s : %d\n", name, value);
 42}
 43
 44static int virtio_gpu_features(struct seq_file *m, void *data)
 45{
 46	struct drm_info_node *node = (struct drm_info_node *)m->private;
 47	struct virtio_gpu_device *vgdev = node->minor->dev->dev_private;
 48
 49	virtio_gpu_add_bool(m, "virgl", vgdev->has_virgl_3d);
 50	virtio_gpu_add_bool(m, "edid", vgdev->has_edid);
 51	virtio_gpu_add_bool(m, "indirect", vgdev->has_indirect);
 52
 53	virtio_gpu_add_bool(m, "resource uuid",
 54			    vgdev->has_resource_assign_uuid);
 55
 56	virtio_gpu_add_bool(m, "blob resources", vgdev->has_resource_blob);
 57	virtio_gpu_add_bool(m, "context init", vgdev->has_context_init);
 58	virtio_gpu_add_int(m, "cap sets", vgdev->num_capsets);
 59	virtio_gpu_add_int(m, "scanouts", vgdev->num_scanouts);
 60	if (vgdev->host_visible_region.len) {
 61		seq_printf(m, "%-16s : 0x%lx +0x%lx\n", "host visible region",
 62			   (unsigned long)vgdev->host_visible_region.addr,
 63			   (unsigned long)vgdev->host_visible_region.len);
 64	}
 65	return 0;
 66}
 67
 68static int
 69virtio_gpu_debugfs_irq_info(struct seq_file *m, void *data)
 70{
 71	struct drm_info_node *node = (struct drm_info_node *) m->private;
 72	struct virtio_gpu_device *vgdev = node->minor->dev->dev_private;
 73
 74	seq_printf(m, "fence %llu %lld\n",
 75		   (u64)atomic64_read(&vgdev->fence_drv.last_fence_id),
 76		   vgdev->fence_drv.current_fence_id);
 77	return 0;
 78}
 79
 80static int
 81virtio_gpu_debugfs_host_visible_mm(struct seq_file *m, void *data)
 82{
 83	struct drm_info_node *node = (struct drm_info_node *)m->private;
 84	struct virtio_gpu_device *vgdev = node->minor->dev->dev_private;
 85	struct drm_printer p;
 86
 87	if (!vgdev->has_host_visible) {
 88		seq_puts(m, "Host allocations not visible to guest\n");
 89		return 0;
 90	}
 91
 92	p = drm_seq_file_printer(m);
 93	drm_mm_print(&vgdev->host_visible_mm, &p);
 94	return 0;
 95}
 96
 97static struct drm_info_list virtio_gpu_debugfs_list[] = {
 98	{ "virtio-gpu-features", virtio_gpu_features },
 99	{ "virtio-gpu-irq-fence", virtio_gpu_debugfs_irq_info, 0, NULL },
100	{ "virtio-gpu-host-visible-mm", virtio_gpu_debugfs_host_visible_mm },
101};
102
103#define VIRTIO_GPU_DEBUGFS_ENTRIES ARRAY_SIZE(virtio_gpu_debugfs_list)
104
105void
106virtio_gpu_debugfs_init(struct drm_minor *minor)
107{
108	drm_debugfs_create_files(virtio_gpu_debugfs_list,
109				 VIRTIO_GPU_DEBUGFS_ENTRIES,
110				 minor->debugfs_root, minor);
111}