diff options
Diffstat (limited to 'drivers/gpu/drm/rockchip/rockchip_drm_vop.c')
| -rw-r--r-- | drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 61 |
1 files changed, 27 insertions, 34 deletions
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c index 20a9c296d027..12ed5265a90b 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c @@ -1,15 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd * Author:Mark Yao <mark.yao@rock-chips.com> - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <drm/drm.h> @@ -924,29 +916,17 @@ static void vop_plane_atomic_async_update(struct drm_plane *plane, struct drm_plane_state *new_state) { struct vop *vop = to_vop(plane->state->crtc); - struct drm_plane_state *plane_state; - - plane_state = plane->funcs->atomic_duplicate_state(plane); - plane_state->crtc_x = new_state->crtc_x; - plane_state->crtc_y = new_state->crtc_y; - plane_state->crtc_h = new_state->crtc_h; - plane_state->crtc_w = new_state->crtc_w; - plane_state->src_x = new_state->src_x; - plane_state->src_y = new_state->src_y; - plane_state->src_h = new_state->src_h; - plane_state->src_w = new_state->src_w; - - if (plane_state->fb != new_state->fb) - drm_atomic_set_fb_for_plane(plane_state, new_state->fb); - - swap(plane_state, plane->state); - - if (plane->state->fb && plane->state->fb != new_state->fb) { - drm_framebuffer_get(plane->state->fb); - WARN_ON(drm_crtc_vblank_get(plane->state->crtc) != 0); - drm_flip_work_queue(&vop->fb_unref_work, plane->state->fb); - set_bit(VOP_PENDING_FB_UNREF, &vop->pending); - } + struct drm_framebuffer *old_fb = plane->state->fb; + + plane->state->crtc_x = new_state->crtc_x; + plane->state->crtc_y = new_state->crtc_y; + plane->state->crtc_h = new_state->crtc_h; + plane->state->crtc_w = new_state->crtc_w; + plane->state->src_x = new_state->src_x; + plane->state->src_y = new_state->src_y; + plane->state->src_h = new_state->src_h; + plane->state->src_w = new_state->src_w; + swap(plane->state->fb, new_state->fb); if (vop->is_enabled) { rockchip_drm_psr_inhibit_get_state(new_state->state); @@ -955,9 +935,22 @@ static void vop_plane_atomic_async_update(struct drm_plane *plane, vop_cfg_done(vop); spin_unlock(&vop->reg_lock); rockchip_drm_psr_inhibit_put_state(new_state->state); - } - plane->funcs->atomic_destroy_state(plane, plane_state); + /* + * A scanout can still be occurring, so we can't drop the + * reference to the old framebuffer. To solve this we get a + * reference to old_fb and set a worker to release it later. + * FIXME: if we perform 500 async_update calls before the + * vblank, then we can have 500 different framebuffers waiting + * to be released. + */ + if (old_fb && plane->state->fb != old_fb) { + drm_framebuffer_get(old_fb); + WARN_ON(drm_crtc_vblank_get(plane->state->crtc) != 0); + drm_flip_work_queue(&vop->fb_unref_work, old_fb); + set_bit(VOP_PENDING_FB_UNREF, &vop->pending); + } + } } static const struct drm_plane_helper_funcs plane_helper_funcs = { |