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SPU: Make SPURS limit a dynamic setting

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This commit is contained in:
Elad Ashkenazi 2024-09-25 09:16:42 +03:00 committed by Elad
parent feedc183a4
commit 8b79fd3da1
3 changed files with 25 additions and 5 deletions
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18
rpcs3/Emu/Cell/SPUThread.cpp
View File

@ -5659,6 +5659,24 @@ s64 spu_thread::get_ch_value(u32 ch)
// Don't busy-wait with TSX - memory is sensitive
if (g_use_rtm || !reservation_busy_waiting)
{
if (u32 max_threads = std::min<u32>(g_cfg.core.max_spurs_threads, group->max_num); group->max_run != max_threads)
{
constexpr std::string_view spurs_suffix = "CellSpursKernelGroup"sv;
if (group->name.ends_with(spurs_suffix) && !group->name.substr(0, group->name.size() - spurs_suffix.size()).ends_with("_libsail"))
{
// Hack: don't run more SPURS threads than specified.
if (u32 old = atomic_storage<u32>::exchange(group->max_run, max_threads); old > max_threads)
{
spu_log.success("HACK: '%s' (0x%x) limited to %u threads.", group->name, group->id, max_threads);
}
else if (u32 running = group->spurs_running; old < max_threads && running >= old && running < max_threads)
{
group->spurs_running.notify_all();
}
}
}
if (u32 work_count = g_spu_work_count)
{
const u32 true_free = utils::sub_saturate<u32>(utils::get_thread_count(), 10);

10
rpcs3/Emu/Cell/lv2/sys_spu.cpp
View File

@ -731,14 +731,16 @@ error_code sys_spu_thread_initialize(ppu_thread& ppu, vm::ptr<u32> thread, u32 g
if (++group->init == group->max_num)
{
if (g_cfg.core.max_spurs_threads < 6 && group->max_num > 0u + g_cfg.core.max_spurs_threads)
if (u32 max_threads = std::min<u32>(g_cfg.core.max_spurs_threads, group->max_num); group->max_num > max_threads)
{
if (group->name.ends_with("CellSpursKernelGroup") && !group->name.ends_with("_libsailCellSpursKernelGroup"))
constexpr std::string_view spurs_suffix = "CellSpursKernelGroup"sv;
if (group->name.ends_with(spurs_suffix) && !group->name.substr(0, group->name.size() - spurs_suffix.size()).ends_with("_libsail"))
{
// Hack: don't run more SPURS threads than specified.
group->max_run = g_cfg.core.max_spurs_threads;
group->max_run = max_threads;
spu_log.success("HACK: '%s' (0x%x) limited to %u threads.", group->name, group_id, +g_cfg.core.max_spurs_threads);
spu_log.success("HACK: '%s' (0x%x) limited to %u threads.", group->name, group_id, max_threads);
}
}

2
rpcs3/Emu/system_config.h
View File

@ -39,7 +39,7 @@ struct cfg_root : cfg::node
cfg::_int<0, 6> preferred_spu_threads{ this, "Preferred SPU Threads", 0, true }; // Number of hardware threads dedicated to heavy simultaneous spu tasks
cfg::_int<0, 16> spu_delay_penalty{ this, "SPU delay penalty", 3 }; // Number of milliseconds to block a thread if a virtual 'core' isn't free
cfg::_bool spu_loop_detection{ this, "SPU loop detection", false }; // Try to detect wait loops and trigger thread yield
cfg::_int<0, 6> max_spurs_threads{ this, "Max SPURS Threads", 6 }; // HACK. If less then 6, max number of running SPURS threads in each thread group.
cfg::_int<0, 6> max_spurs_threads{ this, "Max SPURS Threads", 6, true }; // HACK. If less then 6, max number of running SPURS threads in each thread group.
cfg::_enum<spu_block_size_type> spu_block_size{ this, "SPU Block Size", spu_block_size_type::safe };
cfg::_bool spu_accurate_dma{ this, "Accurate SPU DMA", false };
cfg::_bool spu_accurate_reservations{ this, "Accurate SPU Reservations", true };