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 <drm/drm_atomic_uapi.h> 19 20 #include "msm_drv.h" 21 #include "msm_gem.h" 22 #include "msm_kms.h" 23 24 static void msm_atomic_wait_for_commit_done(struct drm_device *dev, 25 struct drm_atomic_state *old_state) 26 { 27 struct drm_crtc *crtc; 28 struct drm_crtc_state *new_crtc_state; 29 struct msm_drm_private *priv = old_state->dev->dev_private; 30 struct msm_kms *kms = priv->kms; 31 int i; 32 33 for_each_new_crtc_in_state(old_state, crtc, new_crtc_state, i) { 34 if (!new_crtc_state->active) 35 continue; 36 37 if (drm_crtc_vblank_get(crtc)) 38 continue; 39 40 kms->funcs->wait_for_crtc_commit_done(kms, crtc); 41 42 drm_crtc_vblank_put(crtc); 43 } 44 } 45 46 int msm_atomic_prepare_fb(struct drm_plane *plane, 47 struct drm_plane_state *new_state) 48 { 49 struct msm_drm_private *priv = plane->dev->dev_private; 50 struct msm_kms *kms = priv->kms; 51 struct drm_gem_object *obj; 52 struct msm_gem_object *msm_obj; 53 struct dma_fence *fence; 54 55 if (!new_state->fb) 56 return 0; 57 58 obj = msm_framebuffer_bo(new_state->fb, 0); 59 msm_obj = to_msm_bo(obj); 60 fence = reservation_object_get_excl_rcu(msm_obj->resv); 61 62 drm_atomic_set_fence_for_plane(new_state, fence); 63 64 return msm_framebuffer_prepare(new_state->fb, kms->aspace); 65 } 66 67 void msm_atomic_commit_tail(struct drm_atomic_state *state) 68 { 69 struct drm_device *dev = state->dev; 70 struct msm_drm_private *priv = dev->dev_private; 71 struct msm_kms *kms = priv->kms; 72 73 kms->funcs->prepare_commit(kms, state); 74 75 drm_atomic_helper_commit_modeset_disables(dev, state); 76 77 drm_atomic_helper_commit_planes(dev, state, 0); 78 79 drm_atomic_helper_commit_modeset_enables(dev, state); 80 81 if (kms->funcs->commit) { 82 DRM_DEBUG_ATOMIC("triggering commit\n"); 83 kms->funcs->commit(kms, state); 84 } 85 86 if (!state->legacy_cursor_update) 87 msm_atomic_wait_for_commit_done(dev, state); 88 89 kms->funcs->complete_commit(kms, state); 90 91 drm_atomic_helper_commit_hw_done(state); 92 93 drm_atomic_helper_cleanup_planes(dev, state); 94 } 95