drivers/gpu/drm/virtio/virtgpu_debugfs.c

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