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We should invalidate the dcache before starting the DMA. In case there are any dirty lines from the DMA buffer in the cache, subsequent cache-line replacements may corrupt the buffer in memory while the DMA is still going on. Cache-line replacement can happen if the CPU tries to bring some other memory locations into the cache while the DMA is going on. Signed-off-by: Eddie Cai <eddie.cai.linux@gmail.com> Reviewed-by: Stefan Brüns <stefan.bruens@rwth-aachen.de> |
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| common | ||
| dwc3 | ||
| emul | ||
| eth | ||
| gadget | ||
| host | ||
| musb | ||
| musb-new | ||
| phy | ||
| ulpi | ||
| Kconfig | ||