linux-kernel - Re: [PATCH] ARM: omapfb: Add early framebuffer memory allocator

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Message-ID: <567D4657.1070505@gmail.com>
Date:	Fri, 25 Dec 2015 15:36:23 +0200
From:	Ivaylo Dimitrov <ivo.g.dimitrov.75@...il.com>
To:	tomi.valkeinen@...com
Cc:	tony@...mide.com, linux@....linux.org.uk, pali.rohar@...il.com,
	pavel@....cz, linux-omap@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Ivaylo Dimitrov <freemangordon@....bg>
Subject: Re: [PATCH] ARM: omapfb: Add early framebuffer memory allocator

On 26.12.2013 01:12, Ivaylo Dimitrov wrote:
> From: Ivaylo Dimitrov <freemangordon@....bg>
>
> On memory limited devices, CMA fails easily when asked to allocate big
> chunks of memory like framebuffer memory needed for video playback.
>
> Add boot parameter "omapfb_memsize" which allocates memory to be used
> as dma coherent memory, so dma_alloc_attrs won't hit CMA allocator when
> trying to allocate memory for the framebuffers
>
> Signed-off-by: Ivaylo Dimitrov <freemangordon@....bg>
> ---
>   arch/arm/mach-omap2/common.c |    1 +
>   arch/arm/mach-omap2/common.h |    2 +
>   arch/arm/mach-omap2/fb.c     |   46 +++++++++++++++++++++++++++++++++++++++++-
>   3 files changed, 48 insertions(+), 1 deletions(-)
>

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