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 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 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 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 msm_atomic_wait_for_commit_done(dev, state); 75 76 kms->funcs->complete_commit(kms, state); 77 78 drm_atomic_helper_wait_for_vblanks(dev, state); 79 80 drm_atomic_helper_commit_hw_done(state); 81 82 drm_atomic_helper_cleanup_planes(dev, state); 83 } 84