linux-kernel - Re: drm/radeon spamming alloc_contig

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Message-ID: <xa1twpfjmkhc.fsf@mina86.com>
Date:   Thu, 01 Dec 2016 22:02:07 +0100
From:   Michal Nazarewicz <mina86@...a86.com>
To:     Michal Hocko <mhocko@...nel.org>
Cc:     Vlastimil Babka <vbabka@...e.cz>,
        "Robin H. Johnson" <robbat2@...too.org>,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        dri-devel@...ts.freedesktop.org, Joonsoo Kim <js1304@...il.com>,
        Marek Szyprowski <m.szyprowski@...sung.com>
Subject: Re: drm/radeon spamming alloc_contig_range: [xxx, yyy) PFNs busy busy

On Thu, Dec 01 2016, Michal Hocko wrote:
> I am not familiar with this code so I cannot really argue but a quick
> look at rmem_cma_setup doesn't suggest any speicific placing or
> anything...

early_cma parses ‘cma’ command line argument which can specify where
exactly the default CMA area is to be located.  Furthermore, CMA areas
can be assigned per-device (via the Device Tree IIRC).

-- 
Best regards
ミハウ “𝓶𝓲𝓷𝓪86” ナザレヴイツ
«If at first you don’t succeed, give up skydiving»