2 * Copyright (C) 2015 Red Hat, Inc.
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6 * a copy of this software and associated documentation files (the
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10 * permit persons to whom the Software is furnished to do so, subject to
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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.
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.
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23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 #include "virtgpu_drv.h"
27 #include <drm/drm_plane_helper.h>
28 #include <drm/drm_atomic_helper.h>
30 static const uint32_t virtio_gpu_formats[] = {
41 static void virtio_gpu_plane_destroy(struct drm_plane *plane)
46 static const struct drm_plane_funcs virtio_gpu_plane_funcs = {
47 .update_plane = drm_atomic_helper_update_plane,
48 .disable_plane = drm_atomic_helper_disable_plane,
49 .destroy = virtio_gpu_plane_destroy,
50 .reset = drm_atomic_helper_plane_reset,
51 .atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
52 .atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
55 static int virtio_gpu_plane_atomic_check(struct drm_plane *plane,
56 struct drm_plane_state *state)
61 static void virtio_gpu_plane_atomic_update(struct drm_plane *plane,
62 struct drm_plane_state *old_state)
64 struct drm_device *dev = plane->dev;
65 struct virtio_gpu_device *vgdev = dev->dev_private;
66 struct virtio_gpu_output *output = drm_crtc_to_virtio_gpu_output(plane->crtc);
67 struct virtio_gpu_framebuffer *vgfb;
68 struct virtio_gpu_object *bo;
71 if (plane->state->fb) {
72 vgfb = to_virtio_gpu_framebuffer(plane->state->fb);
73 bo = gem_to_virtio_gpu_obj(vgfb->obj);
74 handle = bo->hw_res_handle;
76 virtio_gpu_cmd_transfer_to_host_2d
78 cpu_to_le32(plane->state->crtc_w),
79 cpu_to_le32(plane->state->crtc_h),
80 plane->state->crtc_x, plane->state->crtc_y, NULL);
86 DRM_DEBUG("handle 0x%x, crtc %dx%d+%d+%d\n", handle,
87 plane->state->crtc_w, plane->state->crtc_h,
88 plane->state->crtc_x, plane->state->crtc_y);
89 virtio_gpu_cmd_set_scanout(vgdev, output->index, handle,
93 plane->state->crtc_y);
94 virtio_gpu_cmd_resource_flush(vgdev, handle,
98 plane->state->crtc_h);
102 static const struct drm_plane_helper_funcs virtio_gpu_plane_helper_funcs = {
103 .atomic_check = virtio_gpu_plane_atomic_check,
104 .atomic_update = virtio_gpu_plane_atomic_update,
107 struct drm_plane *virtio_gpu_plane_init(struct virtio_gpu_device *vgdev,
110 struct drm_device *dev = vgdev->ddev;
111 struct drm_plane *plane;
114 plane = kzalloc(sizeof(*plane), GFP_KERNEL);
116 return ERR_PTR(-ENOMEM);
118 ret = drm_universal_plane_init(dev, plane, 1 << index,
119 &virtio_gpu_plane_funcs,
121 ARRAY_SIZE(virtio_gpu_formats),
122 DRM_PLANE_TYPE_PRIMARY, NULL);
126 drm_plane_helper_add(plane, &virtio_gpu_plane_helper_funcs);