Re: [PATCH 3/4] dma-buf: add support for mapping with dma mapping attributes

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Mon, 21 Jan 2019, Christoph Hellwig wrote:

> On Mon, Jan 21, 2019 at 12:20:42PM -0800, Liam Mark wrote:
> > I have left this to clients, but if they own the buffer they can have the 
> > knowledge as to whether CPU access is needed in that use case (example for 
> > post-processing).
> 
> That is an API design which the user is more likely to get wrong than
> right and thus does not pass the smell test.
> 

With the previous version of ION Android ION clients were successfully 
managing all their cache maintenance.



Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project
_______________________________________________
devel mailing list
devel@xxxxxxxxxxxxxxxxxxxxxx
http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel



[Index of Archives]     [Linux Driver Backports]     [DMA Engine]     [Linux GPIO]     [Linux SPI]     [Video for Linux]     [Linux USB Devel]     [Linux Coverity]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [Yosemite Backpacking]
  Powered by Linux