253 lines
8.3 KiB
C++
253 lines
8.3 KiB
C++
/*
|
|
* Copyright (C) 2024 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#define LOG_TAG "drmhwc"
|
|
|
|
#include "DrmHwc.h"
|
|
|
|
#include <cinttypes>
|
|
|
|
#include "backend/Backend.h"
|
|
#include "utils/log.h"
|
|
#include "utils/properties.h"
|
|
|
|
namespace android::drm_hwcomposer {
|
|
|
|
namespace {
|
|
// Helper functions for implementing dumpsys support.
|
|
std::string DumpStats(const CompositionStats &stats) {
|
|
if (stats.total_pixops == 0)
|
|
return "No stats yet";
|
|
|
|
// NOLINTNEXTLINE(readability-magic-numbers)
|
|
auto ratio = 1.0 - (double(stats.gpu_pixops) / double(stats.total_pixops));
|
|
|
|
std::stringstream ss;
|
|
ss << " Total frames count: " << stats.total_frames << "\n"
|
|
<< " Failed cursor test commit frames: "
|
|
<< stats.failed_kms_cursor_validate << "\n"
|
|
<< " Failed to test commit frames: " << stats.failed_kms_validate << "\n"
|
|
<< " Failed to commit frames: " << stats.failed_kms_present << "\n"
|
|
<< ((stats.failed_kms_present > 0)
|
|
? " !!! Internal failure, FIX it please\n"
|
|
: "")
|
|
<< " Flattened frames: " << stats.frames_flattened << "\n"
|
|
<< " Cursor plane frames: " << stats.cursor_plane_frames << "\n"
|
|
<< " Pixel operations (free units) : [TOTAL: " << stats.total_pixops
|
|
<< " / GPU: " << stats.gpu_pixops << "]\n"
|
|
<< " Composition efficiency: " << ratio;
|
|
return ss.str();
|
|
}
|
|
|
|
std::string DumpDisplayStats(HwcDisplay *display, const CompositionStats &stats,
|
|
const CompositionStats &delta) {
|
|
std::stringstream ss;
|
|
ss << "- Display on: " << display->GetDisplayName() << "\n"
|
|
<< "Statistics since system boot:\n"
|
|
<< DumpStats(stats) << "\n\n"
|
|
<< "Statistics since last dumpsys request:\n"
|
|
<< DumpStats(delta) << "\n\n";
|
|
return ss.str();
|
|
}
|
|
} // namespace
|
|
|
|
DrmHwc::DrmHwc() : resource_manager_(this), dump_stats_tracker_(this) {};
|
|
|
|
/* Must be called after every display attach/detach cycle */
|
|
void DrmHwc::FinalizeDisplayBinding() {
|
|
if (displays_.count(kPrimaryDisplay) == 0) {
|
|
/* Primary display MUST always exist */
|
|
ALOGI("No pipelines available. Creating null-display for headless mode");
|
|
displays_[kPrimaryDisplay] = std::make_unique<
|
|
HwcDisplay>(kPrimaryDisplay, /* is_virtual */ false, this);
|
|
/* Initializes null-display */
|
|
displays_[kPrimaryDisplay]->SetPipeline({});
|
|
}
|
|
|
|
if (displays_[kPrimaryDisplay]->IsInHeadlessMode() &&
|
|
!display_handles_.empty()) {
|
|
/* Reattach first secondary display to take place of the primary */
|
|
auto pipe = display_handles_.begin()->first;
|
|
ALOGI("Primary display was disconnected, reattaching '%s' as new primary",
|
|
pipe->connector->Get()->GetName().c_str());
|
|
UnbindDisplay(pipe);
|
|
BindDisplay(pipe);
|
|
}
|
|
|
|
// Finally, send hotplug events to the client
|
|
for (auto &dhe : deferred_hotplug_events_) {
|
|
SendHotplugEventToClient(dhe.first, dhe.second);
|
|
}
|
|
deferred_hotplug_events_.clear();
|
|
|
|
for (auto handle : displays_for_removal_list_) {
|
|
displays_.erase(handle);
|
|
}
|
|
displays_for_removal_list_.clear();
|
|
}
|
|
|
|
bool DrmHwc::BindDisplay(std::shared_ptr<DrmDisplayPipeline> pipeline) {
|
|
if (display_handles_.count(pipeline) != 0) {
|
|
ALOGE("%s, pipeline is already used by another display, FIXME!!!: %p",
|
|
__func__, pipeline.get());
|
|
return false;
|
|
}
|
|
|
|
uint32_t disp_handle = kPrimaryDisplay;
|
|
|
|
if (displays_.count(kPrimaryDisplay) != 0 &&
|
|
!displays_[kPrimaryDisplay]->IsInHeadlessMode()) {
|
|
disp_handle = ++last_display_handle_;
|
|
}
|
|
|
|
if (displays_.count(disp_handle) == 0) {
|
|
auto disp = std::make_unique<HwcDisplay>(disp_handle,
|
|
/* is_virtual */ false, this);
|
|
displays_[disp_handle] = std::move(disp);
|
|
}
|
|
|
|
ALOGI("Attaching pipeline '%s' to the display #%d%s",
|
|
pipeline->connector->Get()->GetName().c_str(), (int)disp_handle,
|
|
disp_handle == kPrimaryDisplay ? " (Primary)" : "");
|
|
|
|
displays_[disp_handle]->SetPipeline(pipeline);
|
|
display_handles_[pipeline] = disp_handle;
|
|
|
|
return true;
|
|
}
|
|
|
|
bool DrmHwc::UnbindDisplay(std::shared_ptr<DrmDisplayPipeline> pipeline) {
|
|
if (display_handles_.count(pipeline) == 0) {
|
|
ALOGE("%s, can't find the display, pipeline: %p", __func__, pipeline.get());
|
|
return false;
|
|
}
|
|
auto handle = display_handles_[pipeline];
|
|
display_handles_.erase(pipeline);
|
|
|
|
ALOGI("Detaching the pipeline '%s' from the display #%i%s",
|
|
pipeline->connector->Get()->GetName().c_str(), (int)handle,
|
|
handle == kPrimaryDisplay ? " (Primary)" : "");
|
|
|
|
if (displays_.count(handle) == 0) {
|
|
ALOGE("%s, can't find the display, handle: %" PRIu64, __func__, handle);
|
|
return false;
|
|
}
|
|
displays_[handle]->SetPipeline({});
|
|
|
|
/* Defer destruction of the display until after the hotplug event is sent. */
|
|
if (handle != kPrimaryDisplay) {
|
|
displays_for_removal_list_.emplace_back(handle);
|
|
}
|
|
return true;
|
|
}
|
|
|
|
void DrmHwc::NotifyDisplayLinkStatus(
|
|
std::shared_ptr<DrmDisplayPipeline> pipeline) {
|
|
if (display_handles_.count(pipeline) == 0) {
|
|
ALOGE("%s, can't find the display, pipeline: %p", __func__, pipeline.get());
|
|
return;
|
|
}
|
|
ScheduleHotplugEvent(display_handles_[pipeline],
|
|
DisplayStatus::kLinkTrainingFailed);
|
|
}
|
|
|
|
std::optional<DisplayHandle> DrmHwc::CreateVirtualDisplay(uint32_t width,
|
|
uint32_t height) {
|
|
ALOGI("Creating virtual display %dx%d", width, height);
|
|
|
|
auto virtual_pipeline = resource_manager_.GetVirtualDisplayPipeline();
|
|
if (!virtual_pipeline)
|
|
return std::nullopt;
|
|
|
|
DisplayHandle new_display_handle = ++last_display_handle_;
|
|
auto disp = std::make_unique<HwcDisplay>(new_display_handle,
|
|
/* is_virtual */ true, this);
|
|
|
|
disp->SetVirtualDisplayResolution(width, height);
|
|
disp->SetPipeline(virtual_pipeline);
|
|
displays_[new_display_handle] = std::move(disp);
|
|
return new_display_handle;
|
|
}
|
|
|
|
bool DrmHwc::DestroyVirtualDisplay(DisplayHandle display) {
|
|
ALOGI("Destroying virtual display %" PRIu64, display);
|
|
|
|
if (displays_.count(display) == 0) {
|
|
ALOGE("Trying to destroy non-existent display %" PRIu64, display);
|
|
return false;
|
|
}
|
|
|
|
if (displays_[display]->GetDisplayType() !=
|
|
HwcDisplay::DisplayType::kVirtual) {
|
|
ALOGE("Trying to destroy non-virtual display %" PRIu64, display);
|
|
return false;
|
|
}
|
|
|
|
displays_[display]->SetPipeline({});
|
|
displays_.erase(display);
|
|
return true;
|
|
}
|
|
|
|
auto DrmHwc::PullCompositionStats()
|
|
-> std::map<DisplayHandle, CompositionStats> {
|
|
std::map<int64_t, CompositionStats> stats;
|
|
for (auto &[display_handle, display] : displays_) {
|
|
stats[static_cast<int64_t>(display_handle)] = display->total_stats();
|
|
}
|
|
return stats;
|
|
}
|
|
|
|
std::string DrmHwc::DumpState() {
|
|
std::stringstream output;
|
|
|
|
output << "-- drm_hwcomposer --\n\n";
|
|
|
|
auto callback = [this, &output](int64_t display_handle,
|
|
const CompositionStats &stats,
|
|
const CompositionStats &delta) {
|
|
auto *display = GetDisplay(display_handle);
|
|
ALOGE_IF(display == nullptr, "Display %" PRIu64 " not found",
|
|
display_handle);
|
|
if (display) {
|
|
output << DumpDisplayStats(display, stats, delta);
|
|
}
|
|
};
|
|
dump_stats_tracker_.ReportStats(callback);
|
|
return output.str();
|
|
}
|
|
|
|
uint32_t DrmHwc::GetMaxVirtualDisplayCount() {
|
|
/* Virtual display is an experimental feature.
|
|
* Unless explicitly set to true, return 0 for no support.
|
|
*/
|
|
if (!Properties::EnableVirtualDisplay()) {
|
|
return 0;
|
|
}
|
|
|
|
auto writeback_count = resource_manager_.GetWritebackConnectorsCount();
|
|
writeback_count = std::min(writeback_count, 1U);
|
|
/* Currently, only 1 virtual display is supported. Other cases need testing */
|
|
ALOGI("Max virtual display count: %d", writeback_count);
|
|
return writeback_count;
|
|
}
|
|
|
|
void DrmHwc::DeinitDisplays() {
|
|
for (auto &pair : Displays()) {
|
|
pair.second->SetPipeline(nullptr);
|
|
}
|
|
}
|
|
|
|
} // namespace android::drm_hwcomposer
|