192 lines
5.3 KiB
C++
192 lines
5.3 KiB
C++
/*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#define ATRACE_TAG ATRACE_TAG_GRAPHICS
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#define LOG_TAG "hwc-drm-atomic-state-manager"
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#include "DrmAtomicStateManager.h"
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#include <drm/drm_mode.h>
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#include <pthread.h>
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#include <sched.h>
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#include <sync/sync.h>
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#include <utils/Trace.h>
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#include <array>
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#include <cstdlib>
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#include <ctime>
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#include <sstream>
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#include <vector>
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#include "drm/DrmCrtc.h"
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#include "drm/DrmDevice.h"
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#include "drm/DrmPlane.h"
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#include "drm/DrmUnique.h"
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#include "utils/log.h"
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namespace android {
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// NOLINTNEXTLINE (readability-function-cognitive-complexity): Fixme
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auto DrmAtomicStateManager::CommitFrame(AtomicCommitArgs &args) -> int {
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ATRACE_CALL();
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if (args.active && *args.active == active_frame_state_.crtc_active_state) {
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/* Don't set the same state twice */
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args.active.reset();
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}
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if (!args.HasInputs()) {
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/* nothing to do */
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return 0;
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}
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if (!active_frame_state_.crtc_active_state) {
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/* Force activate display */
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args.active = true;
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}
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auto new_frame_state = NewFrameState();
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auto *drm = pipe_->device;
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auto *connector = pipe_->connector->Get();
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auto *crtc = pipe_->crtc->Get();
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auto pset = MakeDrmModeAtomicReqUnique();
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if (!pset) {
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ALOGE("Failed to allocate property set");
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return -ENOMEM;
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}
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int64_t out_fence = -1;
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if (crtc->GetOutFencePtrProperty() &&
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!crtc->GetOutFencePtrProperty().AtomicSet(*pset, uint64_t(&out_fence))) {
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return -EINVAL;
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}
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if (args.active) {
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new_frame_state.crtc_active_state = *args.active;
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if (!crtc->GetActiveProperty().AtomicSet(*pset, *args.active ? 1 : 0) ||
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!connector->GetCrtcIdProperty().AtomicSet(*pset, crtc->GetId())) {
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return -EINVAL;
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}
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}
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if (args.display_mode) {
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new_frame_state.mode_blob = args.display_mode.value().CreateModeBlob(*drm);
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if (!new_frame_state.mode_blob) {
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ALOGE("Failed to create mode_blob");
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return -EINVAL;
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}
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if (!crtc->GetModeProperty().AtomicSet(*pset, *new_frame_state.mode_blob)) {
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return -EINVAL;
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}
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}
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auto unused_planes = new_frame_state.used_planes;
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if (args.composition) {
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new_frame_state.used_framebuffers.clear();
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new_frame_state.used_planes.clear();
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for (auto &joining : args.composition->plan) {
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DrmPlane *plane = joining.plane->Get();
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DrmHwcLayer &layer = joining.layer;
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new_frame_state.used_framebuffers.emplace_back(layer.fb_id_handle);
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new_frame_state.used_planes.emplace_back(joining.plane);
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/* Remove from 'unused' list, since plane is re-used */
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auto &v = unused_planes;
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v.erase(std::remove(v.begin(), v.end(), joining.plane), v.end());
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if (plane->AtomicSetState(*pset, layer, joining.z_pos, crtc->GetId()) !=
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0) {
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return -EINVAL;
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}
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}
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}
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if (args.composition) {
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for (auto &plane : unused_planes) {
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if (plane->Get()->AtomicDisablePlane(*pset) != 0) {
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return -EINVAL;
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}
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}
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}
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uint32_t flags = DRM_MODE_ATOMIC_ALLOW_MODESET;
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if (args.test_only)
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flags |= DRM_MODE_ATOMIC_TEST_ONLY;
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int err = drmModeAtomicCommit(drm->GetFd(), pset.get(), flags, drm);
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if (err != 0) {
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if (!args.test_only)
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ALOGE("Failed to commit pset ret=%d\n", err);
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return err;
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}
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if (!args.test_only) {
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if (args.display_mode) {
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/* TODO(nobody): we still need this for synthetic vsync, remove after
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* vsync reworked */
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connector->SetActiveMode(*args.display_mode);
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}
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active_frame_state_ = std::move(new_frame_state);
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if (crtc->GetOutFencePtrProperty()) {
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args.out_fence = UniqueFd((int)out_fence);
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}
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}
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return 0;
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}
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auto DrmAtomicStateManager::ExecuteAtomicCommit(AtomicCommitArgs &args) -> int {
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int err = CommitFrame(args);
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if (!args.test_only) {
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if (err != 0) {
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ALOGE("Composite failed for pipeline %s",
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pipe_->connector->Get()->GetName().c_str());
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// Disable the hw used by the last active composition. This allows us to
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// signal the release fences from that composition to avoid hanging.
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AtomicCommitArgs cl_args{};
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cl_args.composition = std::make_shared<DrmKmsPlan>();
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if (CommitFrame(cl_args) != 0) {
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ALOGE("Failed to clean-up active composition for pipeline %s",
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pipe_->connector->Get()->GetName().c_str());
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}
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return err;
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}
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}
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return err;
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} // namespace android
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auto DrmAtomicStateManager::ActivateDisplayUsingDPMS() -> int {
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return drmModeConnectorSetProperty(pipe_->device->GetFd(),
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pipe_->connector->Get()->GetId(),
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pipe_->connector->Get()
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->GetDpmsProperty()
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.id(),
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DRM_MODE_DPMS_ON);
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}
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} // namespace android
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