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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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e2f597a204
The msm_gem_object structure contains resv and _resv fields that are
no longer needed since the reservation object is now stored on
drm_gem_object. msm_atomic_prepare_fb() and msm_atomic_prepare_fb()
both referenced the wrong reservation object, and would lead to an
attempt to dereference a NULL pointer. Correct those two cases to
point to the correct reservation object.
Fixes: dd55cf6929 ("drm: msm: Switch to use drm_gem_object reservation_object")
Cc: David Airlie <airlied@linux.ie>
Cc: linux-arm-msm@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: freedreno@lists.freedesktop.org
Cc: Rob Herring <robh@kernel.org>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Maxime Ripard <maxime.ripard@bootlin.com>
Cc: Sean Paul <sean@poorly.run>
Acked-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Tested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Brian Masney <masneyb@onstation.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20190513234105.7531-1-masneyb@onstation.org
93 lines
2.4 KiB
C
93 lines
2.4 KiB
C
/*
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* Copyright (C) 2014 Red Hat
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* Author: Rob Clark <robdclark@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published by
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* the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <drm/drm_atomic_uapi.h>
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#include "msm_drv.h"
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#include "msm_gem.h"
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#include "msm_kms.h"
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static void msm_atomic_wait_for_commit_done(struct drm_device *dev,
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struct drm_atomic_state *old_state)
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{
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struct drm_crtc *crtc;
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struct drm_crtc_state *new_crtc_state;
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struct msm_drm_private *priv = old_state->dev->dev_private;
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struct msm_kms *kms = priv->kms;
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int i;
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for_each_new_crtc_in_state(old_state, crtc, new_crtc_state, i) {
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if (!new_crtc_state->active)
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continue;
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if (drm_crtc_vblank_get(crtc))
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continue;
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kms->funcs->wait_for_crtc_commit_done(kms, crtc);
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drm_crtc_vblank_put(crtc);
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}
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}
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int msm_atomic_prepare_fb(struct drm_plane *plane,
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struct drm_plane_state *new_state)
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{
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struct msm_drm_private *priv = plane->dev->dev_private;
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struct msm_kms *kms = priv->kms;
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struct drm_gem_object *obj;
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struct dma_fence *fence;
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if (!new_state->fb)
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return 0;
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obj = msm_framebuffer_bo(new_state->fb, 0);
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fence = reservation_object_get_excl_rcu(obj->resv);
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drm_atomic_set_fence_for_plane(new_state, fence);
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return msm_framebuffer_prepare(new_state->fb, kms->aspace);
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}
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void msm_atomic_commit_tail(struct drm_atomic_state *state)
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{
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struct drm_device *dev = state->dev;
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struct msm_drm_private *priv = dev->dev_private;
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struct msm_kms *kms = priv->kms;
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kms->funcs->prepare_commit(kms, state);
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drm_atomic_helper_commit_modeset_disables(dev, state);
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drm_atomic_helper_commit_planes(dev, state, 0);
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drm_atomic_helper_commit_modeset_enables(dev, state);
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if (kms->funcs->commit) {
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DRM_DEBUG_ATOMIC("triggering commit\n");
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kms->funcs->commit(kms, state);
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}
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if (!state->legacy_cursor_update)
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msm_atomic_wait_for_commit_done(dev, state);
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kms->funcs->complete_commit(kms, state);
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drm_atomic_helper_commit_hw_done(state);
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drm_atomic_helper_cleanup_planes(dev, state);
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}
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