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Code Issues Projects Releases Wiki Activity

NvHost: Try a different approach to blocking.

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This commit is contained in:
Fernando Sahmkow 2021-10-30 11:35:05 +02:00
parent 7b7f6f1cb7
commit ac104a24d1
2 changed files with 7 additions and 10 deletions
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15
src/core/hle/service/nvdrv/devices/nvhost_ctrl.cpp
View file

@ -91,7 +91,7 @@ NvResult nvhost_ctrl::IocCtrlEventWait(const std::vector<u8>& input, std::vector
if (syncpoint_manager.IsSyncpointExpired(params.syncpt_id, params.threshold)) { if (syncpoint_manager.IsSyncpointExpired(params.syncpt_id, params.threshold)) {
params.value = syncpoint_manager.GetSyncpointMin(params.syncpt_id); params.value = syncpoint_manager.GetSyncpointMin(params.syncpt_id);
std::memcpy(output.data(), &params, sizeof(params)); std::memcpy(output.data(), &params, sizeof(params));
events_interface.failed[event_id] = false; events_interface.fails[event_id] = 0;
return NvResult::Success; return NvResult::Success;
} }
@ -99,29 +99,26 @@ NvResult nvhost_ctrl::IocCtrlEventWait(const std::vector<u8>& input, std::vector
syncpoint_manager.IsSyncpointExpired(params.syncpt_id, params.threshold)) { syncpoint_manager.IsSyncpointExpired(params.syncpt_id, params.threshold)) {
params.value = new_value; params.value = new_value;
std::memcpy(output.data(), &params, sizeof(params)); std::memcpy(output.data(), &params, sizeof(params));
events_interface.failed[event_id] = false; events_interface.fails[event_id] = 0;
return NvResult::Success; return NvResult::Success;
} }
auto& event = events_interface.events[event_id];
auto& gpu = system.GPU(); auto& gpu = system.GPU();
const u32 current_syncpoint_value = event.fence.value; const u32 target_value = syncpoint_manager.GetSyncpointMax(params.syncpt_id);
const s32 diff = current_syncpoint_value - params.threshold;
const u32 target_value = params.value;
if (!is_async) { if (!is_async) {
params.value = 0; params.value = 0;
} }
const auto check_failing = [&]() { const auto check_failing = [&]() {
if (events_interface.failed[event_id]) { if (events_interface.fails[event_id] > 1) {
{ {
auto lk = system.StallProcesses(); auto lk = system.StallProcesses();
gpu.WaitFence(params.syncpt_id, target_value); gpu.WaitFence(params.syncpt_id, target_value);
system.UnstallProcesses(); system.UnstallProcesses();
} }
std::memcpy(output.data(), &params, sizeof(params)); std::memcpy(output.data(), &params, sizeof(params));
events_interface.failed[event_id] = false; events_interface.fails[event_id] = 0;
return true; return true;
} }
return false; return false;
@ -207,7 +204,7 @@ NvResult nvhost_ctrl::IocCtrlClearEventWait(const std::vector<u8>& input, std::v
if (events_interface.status[event_id] == EventState::Waiting) { if (events_interface.status[event_id] == EventState::Waiting) {
events_interface.LiberateEvent(event_id); events_interface.LiberateEvent(event_id);
} }
events_interface.failed[event_id] = true; events_interface.fails[event_id]++;
syncpoint_manager.RefreshSyncpoint(events_interface.events[event_id].fence.id); syncpoint_manager.RefreshSyncpoint(events_interface.events[event_id].fence.id);

2
src/core/hle/service/nvdrv/nvdrv.h
View file

@ -50,7 +50,7 @@ struct EventInterface {
// Tells if an NVEvent is registered or not // Tells if an NVEvent is registered or not
std::array<bool, MaxNvEvents> registered{}; std::array<bool, MaxNvEvents> registered{};
// Tells the NVEvent that it has failed. // Tells the NVEvent that it has failed.
std::array<bool, MaxNvEvents> failed{}; std::array<u32, MaxNvEvents> fails{};
// When an NVEvent is waiting on GPU interrupt, this is the sync_point // When an NVEvent is waiting on GPU interrupt, this is the sync_point
// associated with it. // associated with it.
std::array<u32, MaxNvEvents> assigned_syncpt{}; std::array<u32, MaxNvEvents> assigned_syncpt{};