From ac74b71d7530452126792c5fa0bf01fe7378ba00 Mon Sep 17 00:00:00 2001 From: bunnei Date: Tue, 27 Nov 2018 19:17:33 -0500 Subject: dma_pushbuffer: Optimize to avoid loop and copy on Push. --- src/video_core/dma_pusher.cpp | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) (limited to 'src/video_core/dma_pusher.cpp') diff --git a/src/video_core/dma_pusher.cpp b/src/video_core/dma_pusher.cpp index 23ec97944..63a958f11 100644 --- a/src/video_core/dma_pusher.cpp +++ b/src/video_core/dma_pusher.cpp @@ -23,6 +23,8 @@ void DmaPusher::DispatchCalls() { // On entering GPU code, assume all memory may be touched by the ARM core. gpu.Maxwell3D().dirty_flags.OnMemoryWrite(); + dma_pushbuffer_subindex = 0; + while (Core::System::GetInstance().IsPoweredOn()) { if (!Step()) { break; @@ -89,11 +91,17 @@ bool DmaPusher::Step() { } } else if (ib_enable && !dma_pushbuffer.empty()) { // Current pushbuffer empty, but we have more IB entries to read - const CommandListHeader& command_list_header{dma_pushbuffer.front()}; + const CommandList& command_list{dma_pushbuffer.front()}; + const CommandListHeader& command_list_header{command_list[dma_pushbuffer_subindex++]}; dma_get = command_list_header.addr; dma_put = dma_get + command_list_header.size * sizeof(u32); non_main = command_list_header.is_non_main; - dma_pushbuffer.pop(); + + if (dma_pushbuffer_subindex >= command_list.size()) { + // We've gone through the current list, remove it from the queue + dma_pushbuffer.pop(); + dma_pushbuffer_subindex = 0; + } } else { // Otherwise, pushbuffer empty and IB empty or nonexistent - nothing to do return {}; -- cgit v1.2.3