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dma: don't wait on unbinds in SH3

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This can freeze for reasons I didn't completely root cause. The MWE
leading to this was made by @Calamari, is very dependent on factors I
haven't completely characterized, but includes having the DMA driver,
doing a world switch; and seems to require some timers (via gray engine)
and stack usage, but I'm not clear on the role of that.
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Lephe 2025-06-01 21:30:52 +02:00
parent df9ecba326
commit 36f37b9200
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1 changed files with 4 additions and 0 deletions
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4
src/dma/dma.c
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@ -298,6 +298,8 @@ static void configure(void)
static void funbind(void) static void funbind(void)
{ {
if(isSH3()) return;
/* Wait for all OS transfers to finish before taking over */ /* Wait for all OS transfers to finish before taking over */
for(int channel = 0; channel < 6; channel++) for(int channel = 0; channel < 6; channel++)
dma_channel_wait(channel, true); dma_channel_wait(channel, true);
@ -305,6 +307,8 @@ static void funbind(void)
static void unbind(void) static void unbind(void)
{ {
if(isSH3()) return;
/* Make sure all DMA transfers are finished before leaving gint */ /* Make sure all DMA transfers are finished before leaving gint */
for(int channel = 0; channel < 6; channel++) for(int channel = 0; channel < 6; channel++)
dma_channel_wait(channel, false); dma_channel_wait(channel, false);