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Code Issues Releases Activity

syncpoint_manager: Reduce number of bounds checks

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The only time we need to check bounds is on the first access.
This commit is contained in:
Lioncash 2022-11-28 16:05:59 -05:00
parent 6291eec700
commit d0883027d6
1 changed files with 28 additions and 14 deletions
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42
src/core/hle/service/nvdrv/core/syncpoint_manager.cpp
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@ -28,13 +28,15 @@ SyncpointManager::SyncpointManager(Tegra::Host1x::Host1x& host1x_) : host1x{host
SyncpointManager::~SyncpointManager() = default;
u32 SyncpointManager::ReserveSyncpoint(u32 id, bool client_managed) {
if (syncpoints.at(id).reserved) {
auto& syncpoint = syncpoints.at(id);
if (syncpoint.reserved) {
ASSERT_MSG(false, "Requested syncpoint is in use");
return 0;
}
syncpoints.at(id).reserved = true;
syncpoints.at(id).interface_managed = client_managed;
syncpoint.reserved = true;
syncpoint.interface_managed = client_managed;
return id;
}
@ -56,8 +58,9 @@ u32 SyncpointManager::AllocateSyncpoint(bool client_managed) {
void SyncpointManager::FreeSyncpoint(u32 id) {
std::lock_guard lock(reservation_lock);
ASSERT(syncpoints.at(id).reserved);
syncpoints.at(id).reserved = false;
auto& syncpoint = syncpoints.at(id);
ASSERT(syncpoint.reserved);
syncpoint.reserved = false;
}
bool SyncpointManager::IsSyncpointAllocated(u32 id) {
@ -82,40 +85,51 @@ bool SyncpointManager::HasSyncpointExpired(u32 id, u32 threshold) const {
}
u32 SyncpointManager::IncrementSyncpointMaxExt(u32 id, u32 amount) {
if (!syncpoints.at(id).reserved) {
auto& syncpoint = syncpoints.at(id);
if (!syncpoint.reserved) {
ASSERT(false);
return 0;
}
return syncpoints.at(id).counter_max += amount;
return syncpoint.counter_max += amount;
}
u32 SyncpointManager::ReadSyncpointMinValue(u32 id) {
if (!syncpoints.at(id).reserved) {
auto& syncpoint = syncpoints.at(id);
if (!syncpoint.reserved) {
ASSERT(false);
return 0;
}
return syncpoints.at(id).counter_min;
return syncpoint.counter_min;
}
u32 SyncpointManager::UpdateMin(u32 id) {
if (!syncpoints.at(id).reserved) {
auto& syncpoint = syncpoints.at(id);
if (!syncpoint.reserved) {
ASSERT(false);
return 0;
}
syncpoints.at(id).counter_min = host1x.GetSyncpointManager().GetHostSyncpointValue(id);
return syncpoints.at(id).counter_min;
syncpoint.counter_min = host1x.GetSyncpointManager().GetHostSyncpointValue(id);
return syncpoint.counter_min;
}
NvFence SyncpointManager::GetSyncpointFence(u32 id) {
if (!syncpoints.at(id).reserved) {
auto& syncpoint = syncpoints.at(id);
if (!syncpoint.reserved) {
ASSERT(false);
return NvFence{};
}
return {.id = static_cast<s32>(id), .value = syncpoints.at(id).counter_max};
return {
.id = static_cast<s32>(id),
.value = syncpoint.counter_max,
};
}
} // namespace Service::Nvidia::NvCore