1 /*
2 * Copyright (C) 2014 Red Hat
3 * Author: Rob Clark <robdclark@gmail.com>
4 *
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 as published by
7 * the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12 * more details.
13 *
14 * You should have received a copy of the GNU General Public License along with
15 * this program. If not, see <http://www.gnu.org/licenses/>.
16 */
17
18 #include "msm_drv.h"
19 #include "msm_gem.h"
20 #include "msm_kms.h"
21
msm_atomic_wait_for_commit_done(struct drm_device * dev,struct drm_atomic_state * old_state)22 static void msm_atomic_wait_for_commit_done(struct drm_device *dev,
23 struct drm_atomic_state *old_state)
24 {
25 struct drm_crtc *crtc;
26 struct drm_crtc_state *new_crtc_state;
27 struct msm_drm_private *priv = old_state->dev->dev_private;
28 struct msm_kms *kms = priv->kms;
29 int i;
30
31 for_each_new_crtc_in_state(old_state, crtc, new_crtc_state, i) {
32 if (!new_crtc_state->active)
33 continue;
34
35 kms->funcs->wait_for_crtc_commit_done(kms, crtc);
36 }
37 }
38
msm_atomic_prepare_fb(struct drm_plane * plane,struct drm_plane_state * new_state)39 int msm_atomic_prepare_fb(struct drm_plane *plane,
40 struct drm_plane_state *new_state)
41 {
42 struct msm_drm_private *priv = plane->dev->dev_private;
43 struct msm_kms *kms = priv->kms;
44 struct drm_gem_object *obj;
45 struct msm_gem_object *msm_obj;
46 struct dma_fence *fence;
47
48 if (!new_state->fb)
49 return 0;
50
51 obj = msm_framebuffer_bo(new_state->fb, 0);
52 msm_obj = to_msm_bo(obj);
53 fence = reservation_object_get_excl_rcu(msm_obj->resv);
54
55 drm_atomic_set_fence_for_plane(new_state, fence);
56
57 return msm_framebuffer_prepare(new_state->fb, kms->aspace);
58 }
59
msm_atomic_commit_tail(struct drm_atomic_state * state)60 void msm_atomic_commit_tail(struct drm_atomic_state *state)
61 {
62 struct drm_device *dev = state->dev;
63 struct msm_drm_private *priv = dev->dev_private;
64 struct msm_kms *kms = priv->kms;
65
66 kms->funcs->prepare_commit(kms, state);
67
68 drm_atomic_helper_commit_modeset_disables(dev, state);
69
70 drm_atomic_helper_commit_planes(dev, state, 0);
71
72 drm_atomic_helper_commit_modeset_enables(dev, state);
73
74 if (kms->funcs->commit) {
75 DRM_DEBUG_ATOMIC("triggering commit\n");
76 kms->funcs->commit(kms, state);
77 }
78
79 msm_atomic_wait_for_commit_done(dev, state);
80
81 kms->funcs->complete_commit(kms, state);
82
83 drm_atomic_helper_commit_hw_done(state);
84
85 drm_atomic_helper_cleanup_planes(dev, state);
86 }
87
