[PATCHv8 00/12] Contiguous Memory Allocator
davidb at codeaurora.org
Thu Dec 23 13:04:51 EST 2010
Felipe Contreras <felipe.contreras at gmail.com> writes:
> On Thu, Dec 23, 2010 at 4:16 PM, Russell King - ARM Linux
> A generic solution (that I think I already proposed) would be to
> reserve a chunk of memory for the CMA that can be removed from the
> normally mapped kernel memory through memblock at boot time. The size
> of this memory region would be configurable through kconfig. Then, the
> CMA would have a "dma" flag or something, and take chunks out of it
> until there's no more, and then return errors. That would work for
That sounds an awful lot like the Android kernel's pmem implementation.
Solving this problem is important for us as well, but, I'm not sure I
see a better solution that something like Felipe suggests.
The disadvantage, of course, being that the memory isn't available for
the system when the user isn't doing the multi-media.
Sent by an employee of the Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.
More information about the linux-arm-kernel