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Re: CVS commit: src/sys/dev/i2o
> > (POLL() macro with bus_dmamap_sync() seems also wrong..)
>
> Hum, it looks correct to me. We are after the device wrote something
> to RAM, so it's a POSTREAD operation, isn't it ?
Strictly, if DMA is still on-going even after DMA'ed memory is polled,
we also have to call PREREAD sync every time.
for (xi = xxx; xi; xi--) {
uint32_t temp;
bus_dmamap_sync(..., POSTREAD|POSTWRITE);
temp = le32toh(*sw);
if (temp == I2O_EXEC_foo);
break;
bus_dmamap_sync(..., PREREAD);
}
---
Izumi Tsutsui
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