On Mon, Mar 27, 2023, at 14:56, Christophe Leroy wrote:
> Le 27/03/2023 à 14:13, Arnd Bergmann a écrit :
>> From: Arnd Bergmann
>>
>> The powerpc dma_sync_*_for_cpu() variants do more flushes than on other
>> architectures. Reduce it to what everyone else does:
>>
>> - No flush is needed after
Le 27/03/2023 à 14:13, Arnd Bergmann a écrit :
> From: Arnd Bergmann
>
> The powerpc dma_sync_*_for_cpu() variants do more flushes than on other
> architectures. Reduce it to what everyone else does:
>
> - No flush is needed after data has been sent to a device
>
> - When data has been re
From: Arnd Bergmann
The powerpc dma_sync_*_for_cpu() variants do more flushes than on other
architectures. Reduce it to what everyone else does:
- No flush is needed after data has been sent to a device
- When data has been received from a device, the cache only needs to
be invalidated to
