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Message-ID: <20131227094801.GB17143@amd.pavel.ucw.cz> Date: Fri, 27 Dec 2013 10:48:01 +0100 From: Pavel Machek <pavel@....cz> To: Ivaylo Dimitrov <ivo.g.dimitrov.75@...il.com> Cc: tomi.valkeinen@...com, tony@...mide.com, linux@....linux.org.uk, pali.rohar@...il.com, 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 Thu 2013-12-26 01:12:39, 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> Hmm, would it make sense to add a parameter to reserve certain ammount of memory for CMA? omapfb is probably not the only user hitting this...? Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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