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Fix crashes in dual core mode on a PI_FIFO_RESET

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CasualPokePlayer 2022-08-18 13:38:37 -07:00
commit ab8a8e6f84
3 changed files with 23 additions and 1 deletions
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15
Source/Core/Core/HW/ProcessorInterface.cpp
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@ -18,6 +18,7 @@
#include "Core/IOS/IOS.h"
#include "Core/IOS/STM/STM.h"
#include "Core/PowerPC/PowerPC.h"
#include "VideoCommon/AsyncRequests.h"
#include "VideoCommon/Fifo.h"
namespace ProcessorInterface
@ -108,7 +109,19 @@ void RegisterMMIO(MMIO::Mapping* mmio, u32 base)
if ((val & 1) != 0)
{
GPFifo::ResetGatherPipe();
Fifo::ResetVideoBuffer();
// Call Fifo::ResetVideoBuffer() from the video thread. Since that function
// resets various pointers used by the video thread, we can't call it directly
// from the CPU thread, so queue a task to do it instead. In single-core mode,
// AsyncRequests is in passthrough mode, so this will be safely and immediately
// called on the CPU thread.
// NOTE: GPFifo::ResetGatherPipe() only affects
// CPU state, so we can call it directly
AsyncRequests::Event ev = {};
ev.type = AsyncRequests::Event::FIFO_RESET;
AsyncRequests::GetInstance()->PushEvent(ev);
}
}));