RE: [Linaro-mm-sig] [PATCH 12/15] drivers: add Contiguous Memory Allocator

Marek Szyprowski
2012-01-27T15:17:10Z

Hello,

On Friday, January 27, 2012 3:59 PM Ohad Ben-Cohen wrote:

> 2012/1/27 Marek Szyprowski <m.szyprowski@samsung.com>:
> > Ohad, could you tell a bit more about your issue?
>
> Sure, feel free to ask.
>
> > Does this 'large region'
> > is a device private region (declared with dma_declare_contiguous())
>
> Yes, it is.
>
> See omap_rproc_reserve_cma() in:
>
> http://git.kernel.org/?p=linux/kernel/git/ohad/remoteproc.git;a=commitdiff;h=dab6a2584550a6297
> 46fa1dea2be8ffbe1910277

There have been some vmalloc layout changes merged to v3.3-rc1. Please check
if the hardcoded OMAP_RPROC_CMA_BASE+CONFIG_OMAP_DUCATI_CMA_SIZE fits into kernel
low-memory. Some hints you can find after the "Virtual kernel memory layout:"
message during boot and using "cat /proc/iomem".

Best regards
--
Marek Szyprowski
Samsung Poland R&D Center