WaitForIdle
void (*WaitForIdle)();
gInfo.WaitForIdle(); // wait until engine is completely idle
gInfo.WaitForIdle();
gInfo.WaitForIdle();
gInfo.WaitForIdle = Mach64_WaitForIdle;
gInfo.WaitForIdle();
gInfo.WaitForIdle = WaitForIdle;
WaitForIdle();
if (WaitForIdle() != B_OK) {
status_t WaitForIdle();
fDefaultPipe->WaitForIdle();
WaitForIdle();
WaitForIdle();
WaitForIdle();
void WaitForIdle();