linux-kernel - Re: [PATCH v2 2/2] microblaze: Wire CMA allocator

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Date:   Fri, 17 Jan 2020 09:05:03 +0100
From:   Christoph Hellwig <hch@....de>
To:     Michal Simek <michal.simek@...inx.com>
Cc:     linux-kernel@...r.kernel.org, monstr@...str.eu, git@...inx.com,
        Christoph Hellwig <hch@....de>,
        Manish Narani <manish.narani@...inx.com>,
        Mike Rapoport <rppt@...ux.ibm.com>,
        Manjukumar Matha <manjukumar.harthikote-matha@...inx.com>,
        Heiko Carstens <heiko.carstens@...ibm.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Guo Ren <ren_guo@...ky.com>,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH v2 2/2] microblaze: Wire CMA allocator

On Fri, Jan 17, 2020 at 09:03:32AM +0100, Michal Simek wrote:
> Based on commit 04e3543e228f ("microblaze: use the generic dma coherent
> remap allocator")
> CMA can be easily enabled by calling dma_contiguous_reserve() at the end of
> mmu_init(). High limit is end of lowmem space which is completely unused at
> this point of time.
> 
> Signed-off-by: Michal Simek <michal.simek@...inx.com>

Looks good,

Reviewed-by: Christoph Hellwig <hch@....de>