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drm/virtio: implement blob resources: probe for host visible region

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The availability of the host visible region means host 3D
allocations can be directly mapped in the guest.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20200924003214.662-9-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 17:32:04 -07:00
parent 6815cfe602
commit 6076a9711d
3 changed files with 25 additions and 2 deletions
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5
drivers/gpu/drm/virtio/virtgpu_debugfs.c
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@@ -52,6 +52,11 @@ static int virtio_gpu_features(struct seq_file *m, void *data)
virtio_add_bool(m, "blob resources", vgdev->has_resource_blob);
virtio_add_int(m, "cap sets", vgdev->num_capsets);
virtio_add_int(m, "scanouts", vgdev->num_scanouts);
if (vgdev->host_visible_region.len) {
seq_printf(m, "%-16s : 0x%lx +0x%lx\n", "host visible region",
(unsigned long)vgdev->host_visible_region.addr,
(unsigned long)vgdev->host_visible_region.len);
}
return 0;
}