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drm/virtio: implement blob resources: implement vram object

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A virtio-gpu vram object is based on range-based allocation.
No guest shmemfs backing, so we call drm_gem_private_object_init.

This is for host memory without any guest backing (atleast initially).

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20200924003214.662-12-gurchetansingh@chromium.org
Co-developed-by: Gurchetan Singh <gurchetansingh@chromium.org>
Signed-off-by: Gurchetan Singh <gurchetansingh@chromium.org>
This commit is contained in:
Gerd Hoffmann
2020-09-23 17:32:07 -07:00
parent 5c824604e5
commit 16845c5d54
7 changed files with 293 additions and 3 deletions
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20
drivers/gpu/drm/virtio/virtgpu_debugfs.c
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@@ -42,7 +42,7 @@ static void virtio_add_int(struct seq_file *m, const char *name,
static int virtio_gpu_features(struct seq_file *m, void *data)
{
struct drm_info_node *node = (struct drm_info_node *) m->private;
struct drm_info_node *node = (struct drm_info_node *)m->private;
struct virtio_gpu_device *vgdev = node->minor->dev->dev_private;
virtio_add_bool(m, "virgl", vgdev->has_virgl_3d);
@@ -72,9 +72,27 @@ virtio_gpu_debugfs_irq_info(struct seq_file *m, void *data)
return 0;
}
static int
virtio_gpu_debugfs_host_visible_mm(struct seq_file *m, void *data)
{
struct drm_info_node *node = (struct drm_info_node *)m->private;
struct virtio_gpu_device *vgdev = node->minor->dev->dev_private;
struct drm_printer p;
if (!vgdev->has_host_visible) {
seq_puts(m, "Host allocations not visible to guest\n");
return 0;
}
p = drm_seq_file_printer(m);
drm_mm_print(&vgdev->host_visible_mm, &p);
return 0;
}
static struct drm_info_list virtio_gpu_debugfs_list[] = {
{ "virtio-gpu-features", virtio_gpu_features },
{ "virtio-gpu-irq-fence", virtio_gpu_debugfs_irq_info, 0, NULL },
{ "virtio-gpu-host-visible-mm", virtio_gpu_debugfs_host_visible_mm },
};
#define VIRTIO_GPU_DEBUGFS_ENTRIES ARRAY_SIZE(virtio_gpu_debugfs_list)