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|
/* SPDX-License-Identifier: MIT */
#include "drm++/syncobject.hpp"
#include "drm++/helper.hpp"
#include "drm++/ioctl.hpp"
#include <cstddef>
#include <functional>
#include <optional>
#include <stdexcept>
#include <vector>
#include <unistd.h>
#include <drm.h>
using namespace drm;
using namespace drm::syncobj;
/* Binary Sync Objects */
SyncObject::SyncObject(int fd, bool signaled) : m_fd(fd) {
drm_syncobj_create args{
.flags = signaled ? DRM_SYNCOBJ_CREATE_SIGNALED : 0U
};
ioctl::perform(this->m_fd, DRM_IOCTL_SYNCOBJ_CREATE, args);
this->m_handle = args.handle;
}
SyncObject::SyncObject(int fd, int syncobj_fd, bool close) : m_fd(fd) {
try {
drm_syncobj_handle args{
.fd = syncobj_fd
};
ioctl::perform(this->m_fd, DRM_IOCTL_SYNCOBJ_FD_TO_HANDLE, args);
this->m_handle = args.handle;
} catch (...) {
if (close) {
::close(syncobj_fd);
}
throw;
}
if (close) {
::close(syncobj_fd);
}
}
int SyncObject::exportFd() const {
drm_syncobj_handle args{
.handle = this->m_handle,
};
ioctl::perform(this->m_fd, DRM_IOCTL_SYNCOBJ_HANDLE_TO_FD, args);
return args.fd;
}
void SyncObject::importSyncFile(int syncfile_fd, bool close) const {
try {
drm_syncobj_handle args{
.handle = this->m_handle,
.flags = DRM_SYNCOBJ_FD_TO_HANDLE_FLAGS_IMPORT_SYNC_FILE,
.fd = syncfile_fd
};
ioctl::perform(this->m_fd, DRM_IOCTL_SYNCOBJ_FD_TO_HANDLE, args);
} catch (...) {
if (close) {
::close(syncfile_fd);
}
throw;
}
if (close) {
::close(syncfile_fd);
}
}
int SyncObject::exportSyncFile() const {
drm_syncobj_handle args{
.handle = this->m_handle,
.flags = DRM_SYNCOBJ_HANDLE_TO_FD_FLAGS_EXPORT_SYNC_FILE
};
ioctl::perform(this->m_fd, DRM_IOCTL_SYNCOBJ_HANDLE_TO_FD, args);
return args.fd;
}
void SyncObject::transfer(const SyncObject& dest) const {
drm_syncobj_transfer args{
.src_handle = this->m_handle,
.dst_handle = dest.m_handle
};
ioctl::perform(this->m_fd, DRM_IOCTL_SYNCOBJ_TRANSFER, args);
}
void SyncObject::transfer(const TimelineSyncObject& dest, u64 destPoint) const {
drm_syncobj_transfer args{
.src_handle = this->m_handle,
.dst_handle = dest.handle(),
.dst_point = destPoint
};
ioctl::perform(this->m_fd, DRM_IOCTL_SYNCOBJ_TRANSFER, args);
}
void SyncObject::signal() const {
drm_syncobj_array args{
.handles = reinterpret_cast<u64>(&this->m_handle),
.count_handles = 1
};
ioctl::perform(this->m_fd, DRM_IOCTL_SYNCOBJ_SIGNAL, args);
}
void SyncObject::reset() const {
drm_syncobj_array args{
.handles = reinterpret_cast<u64>(&this->m_handle),
.count_handles = 1
};
ioctl::perform(this->m_fd, DRM_IOCTL_SYNCOBJ_RESET, args);
}
void SyncObject::wait(
s64 timeout,
WaitMode waitMode,
std::optional<u64> deadlineHint
) const {
drm_syncobj_wait args{
.handles = reinterpret_cast<u64>(&this->m_handle),
.timeout_nsec = timeout,
.count_handles = 1,
.flags = (waitMode == WaitMode::WaitEmpty ? DRM_SYNCOBJ_WAIT_FLAGS_WAIT_FOR_SUBMIT : 0U) |
(waitMode == WaitMode::WaitAvailable ? DRM_SYNCOBJ_WAIT_FLAGS_WAIT_AVAILABLE : 0U) |
(deadlineHint.has_value() ? DRM_SYNCOBJ_WAIT_FLAGS_WAIT_DEADLINE : 0U),
.deadline_nsec = deadlineHint.value_or(0)
};
ioctl::perform(this->m_fd, DRM_IOCTL_SYNCOBJ_WAIT, args);
}
void SyncObject::registerEventFd(int eventfd_fd, bool waitAvailable) const {
drm_syncobj_eventfd args{
.handle = this->m_handle,
.flags = waitAvailable ? DRM_SYNCOBJ_WAIT_FLAGS_WAIT_AVAILABLE : 0U,
.fd = eventfd_fd
};
ioctl::perform(this->m_fd, DRM_IOCTL_SYNCOBJ_EVENTFD, args);
}
void SyncObject::destruct() noexcept {
if (this->m_fd < 0) {
return;
}
drm_syncobj_destroy args{
.handle = this->m_handle
};
try {
ioctl::perform(this->m_fd, DRM_IOCTL_SYNCOBJ_DESTROY, args);
} catch(...) {
(void) 0; // not much we can do about the leak
}
this->m_fd = -1;
}
/* Timeline Sync Objects */
TimelineSyncObject::TimelineSyncObject(int fd) : m_fd(fd) {
drm_syncobj_create args{
.flags = 0U
};
ioctl::perform(this->m_fd, DRM_IOCTL_SYNCOBJ_CREATE, args);
this->m_handle = args.handle;
}
TimelineSyncObject::TimelineSyncObject(int fd, int syncobj_fd, bool close) : m_fd(fd) {
try {
drm_syncobj_handle args{
.fd = syncobj_fd
};
ioctl::perform(this->m_fd, DRM_IOCTL_SYNCOBJ_FD_TO_HANDLE, args);
this->m_handle = args.handle;
} catch (...) {
if (close) {
::close(syncobj_fd);
}
throw;
}
if (close) {
::close(syncobj_fd);
}
}
int TimelineSyncObject::exportFd() const {
drm_syncobj_handle args{
.handle = this->m_handle,
};
ioctl::perform(this->m_fd, DRM_IOCTL_SYNCOBJ_HANDLE_TO_FD, args);
return args.fd;
}
void TimelineSyncObject::importSyncFile(int syncfile_fd, u64 point, bool close) const {
try {
drm_syncobj_handle args{
.handle = this->m_handle,
.flags = DRM_SYNCOBJ_FD_TO_HANDLE_FLAGS_IMPORT_SYNC_FILE
| DRM_SYNCOBJ_FD_TO_HANDLE_FLAGS_TIMELINE,
.fd = syncfile_fd,
.point = point
};
ioctl::perform(this->m_fd, DRM_IOCTL_SYNCOBJ_FD_TO_HANDLE, args);
} catch (...) {
if (close) {
::close(syncfile_fd);
}
throw;
}
if (close) {
::close(syncfile_fd);
}
}
int TimelineSyncObject::exportSyncFile(u64 point) const {
drm_syncobj_handle args{
.handle = this->m_handle,
.flags = DRM_SYNCOBJ_HANDLE_TO_FD_FLAGS_EXPORT_SYNC_FILE
| DRM_SYNCOBJ_HANDLE_TO_FD_FLAGS_TIMELINE,
.point = point
};
ioctl::perform(this->m_fd, DRM_IOCTL_SYNCOBJ_HANDLE_TO_FD, args);
return args.fd;
}
void TimelineSyncObject::transfer(
const TimelineSyncObject& dest,
u64 srcPoint,
u64 destPoint
) const {
drm_syncobj_transfer args{
.src_handle = this->m_handle,
.dst_handle = dest.m_handle,
.src_point = srcPoint,
.dst_point = destPoint
};
ioctl::perform(this->m_fd, DRM_IOCTL_SYNCOBJ_TRANSFER, args);
}
void TimelineSyncObject::transfer(const SyncObject& dest, u64 srcPoint) const {
drm_syncobj_transfer args{
.src_handle = this->m_handle,
.dst_handle = dest.handle(),
.src_point = srcPoint
};
ioctl::perform(this->m_fd, DRM_IOCTL_SYNCOBJ_TRANSFER, args);
}
void TimelineSyncObject::signal(u64 point) const {
drm_syncobj_timeline_array args{
.handles = reinterpret_cast<u64>(&this->m_handle),
.points = reinterpret_cast<u64>(&point),
.count_handles = 1
};
ioctl::perform(this->m_fd, DRM_IOCTL_SYNCOBJ_TIMELINE_SIGNAL, args);
}
void TimelineSyncObject::wait(
s64 timeout,
u64 point,
bool waitAvailable,
std::optional<u64> deadlineHint
) const {
drm_syncobj_timeline_wait args{
.handles = reinterpret_cast<u64>(&this->m_handle),
.points = reinterpret_cast<u64>(&point),
.timeout_nsec = timeout,
.count_handles = 1,
.flags = (waitAvailable ? DRM_SYNCOBJ_WAIT_FLAGS_WAIT_AVAILABLE : 0U) |
(deadlineHint.has_value() ? DRM_SYNCOBJ_WAIT_FLAGS_WAIT_DEADLINE : 0U),
.deadline_nsec = deadlineHint.value_or(0)
};
ioctl::perform(this->m_fd, DRM_IOCTL_SYNCOBJ_WAIT, args);
}
u64 TimelineSyncObject::query(bool lastSubmitted) const {
u64 point{};
drm_syncobj_timeline_array args{
.handles = reinterpret_cast<u64>(&this->m_handle),
.points = reinterpret_cast<u64>(&point),
.count_handles = 1,
.flags = lastSubmitted ? DRM_SYNCOBJ_QUERY_FLAGS_LAST_SUBMITTED : 0U
};
ioctl::perform(this->m_fd, DRM_IOCTL_SYNCOBJ_QUERY, args);
return point;
}
void TimelineSyncObject::registerEventFd(
int eventfd_fd,
u64 point,
bool waitAvailable
) const {
drm_syncobj_eventfd args{
.handle = this->m_handle,
.flags = waitAvailable ? DRM_SYNCOBJ_WAIT_FLAGS_WAIT_AVAILABLE : 0U,
.point = point,
.fd = eventfd_fd
};
ioctl::perform(this->m_fd, DRM_IOCTL_SYNCOBJ_EVENTFD, args);
}
/* Bulk Operations */
void syncobj::signal(const std::vector<std::reference_wrapper<SyncObject>>& objs) {
if (objs.empty()) {
return;
}
std::vector<u32> handles(objs.size());
for (size_t i = 0; i < objs.size(); ++i) {
handles.at(i) = objs.at(i).get().handle();
}
drm_syncobj_array args{
.handles = reinterpret_cast<u64>(handles.data()),
.count_handles = static_cast<u32>(handles.size())
};
ioctl::perform(objs.front().get().fd(), DRM_IOCTL_SYNCOBJ_SIGNAL, args);
}
void syncobj::reset(const std::vector<std::reference_wrapper<SyncObject>>& objs) {
if (objs.empty()) {
return;
}
std::vector<u32> handles(objs.size());
for (size_t i = 0; i < objs.size(); ++i) {
handles.at(i) = objs.at(i).get().handle();
}
drm_syncobj_array args{
.handles = reinterpret_cast<u64>(handles.data()),
.count_handles = static_cast<u32>(handles.size())
};
ioctl::perform(objs.front().get().fd(), DRM_IOCTL_SYNCOBJ_RESET, args);
}
SyncObject& syncobj::wait(
const std::vector<std::reference_wrapper<SyncObject>>& objs,
s64 timeout,
bool waitAll,
WaitMode waitMode,
std::optional<u64> deadlineHint
) {
if (objs.empty()) {
throw std::invalid_argument("must wait on at least one object");
}
std::vector<u32> handles(objs.size());
for (size_t i = 0; i < objs.size(); ++i) {
handles.at(i) = objs.at(i).get().handle();
}
drm_syncobj_wait args{
.handles = reinterpret_cast<u64>(handles.data()),
.timeout_nsec = timeout,
.count_handles = static_cast<u32>(handles.size()),
.flags = (waitAll ? 0U : DRM_SYNCOBJ_WAIT_FLAGS_WAIT_ALL) |
(waitMode == WaitMode::WaitEmpty ? DRM_SYNCOBJ_WAIT_FLAGS_WAIT_FOR_SUBMIT : 0U) |
(waitMode == WaitMode::WaitAvailable ? DRM_SYNCOBJ_WAIT_FLAGS_WAIT_AVAILABLE : 0U) |
(deadlineHint.has_value() ? DRM_SYNCOBJ_WAIT_FLAGS_WAIT_DEADLINE : 0U),
.deadline_nsec = deadlineHint.value_or(0)
};
ioctl::perform(objs.front().get().fd(), DRM_IOCTL_SYNCOBJ_WAIT, args);
return objs.at(args.first_signaled).get();
}
void syncobj::signal(
const std::vector<std::reference_wrapper<TimelineSyncObject>>& objs,
const std::vector<u64>& points
) {
if (objs.empty()) {
return;
}
std::vector<u32> handles(objs.size());
for (size_t i = 0; i < objs.size(); ++i) {
handles.at(i) = objs.at(i).get().handle();
}
drm_syncobj_timeline_array args{
.handles = reinterpret_cast<u64>(handles.data()),
.points = reinterpret_cast<u64>(points.data()),
.count_handles = static_cast<u32>(handles.size())
};
ioctl::perform(objs.front().get().fd(), DRM_IOCTL_SYNCOBJ_TIMELINE_SIGNAL, args);
}
void syncobj::wait(
const std::vector<std::reference_wrapper<TimelineSyncObject>>& objs,
const std::vector<u64>& points,
s64 timeout,
bool waitAll,
bool waitAvailable,
std::optional<u64> deadlineHint
) {
if (objs.empty()) {
return;
}
std::vector<u32> handles(objs.size());
for (size_t i = 0; i < objs.size(); ++i) {
handles.at(i) = objs.at(i).get().handle();
}
drm_syncobj_timeline_wait args{
.handles = reinterpret_cast<u64>(handles.data()),
.points = reinterpret_cast<u64>(points.data()),
.timeout_nsec = timeout,
.count_handles = static_cast<u32>(handles.size()),
.flags = (waitAll ? 0U : DRM_SYNCOBJ_WAIT_FLAGS_WAIT_ALL) |
(waitAvailable ? DRM_SYNCOBJ_WAIT_FLAGS_WAIT_AVAILABLE : 0U) |
(deadlineHint.has_value() ? DRM_SYNCOBJ_WAIT_FLAGS_WAIT_DEADLINE : 0U),
.deadline_nsec = deadlineHint.value_or(0)
};
ioctl::perform(objs.front().get().fd(), DRM_IOCTL_SYNCOBJ_TIMELINE_WAIT, args);
}
std::vector<u64> syncobj::query(
const std::vector<std::reference_wrapper<TimelineSyncObject>>& objs,
bool lastSubmitted
) {
if (objs.empty()) {
return {};
}
std::vector<u32> handles(objs.size());
for (size_t i = 0; i < objs.size(); ++i) {
handles.at(i) = objs.at(i).get().handle();
}
std::vector<u64> points(objs.size());
drm_syncobj_timeline_array args{
.handles = reinterpret_cast<u64>(handles.data()),
.points = reinterpret_cast<u64>(points.data()),
.count_handles = static_cast<u32>(handles.size()),
.flags = lastSubmitted ? DRM_SYNCOBJ_QUERY_FLAGS_LAST_SUBMITTED : 0U
};
ioctl::perform(objs.front().get().fd(), DRM_IOCTL_SYNCOBJ_QUERY, args);
return points;
}
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