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In-Reply-To: <20190613082446.18685-1-hch@lst.de>
To:     Christoph Hellwig <hch@lst.de>, benh@kernel.crashing.org,
        paulus@samba.org
From:   Michael Ellerman <patch-notifications@ellerman.id.au>
Cc:     Larry.Finger@lwfinger.net, linuxppc-dev@lists.ozlabs.org,
        linux-kernel@vger.kernel.org, aaro.koskinen@iki.fi
Subject: Re: [PATCH] powerpc: enable a 30-bit ZONE_DMA for 32-bit pmac
Message-Id: <45Wpgz6Q4Lz9sBb@ozlabs.org>
Date:   Sun, 23 Jun 2019 20:34:23 +1000 (AEST)
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

On Thu, 2019-06-13 at 08:24:46 UTC, Christoph Hellwig wrote:
> With the strict dma mask checking introduced with the switch to
> the generic DMA direct code common wifi chips on 32-bit powerbooks
> stopped working.  Add a 30-bit ZONE_DMA to the 32-bit pmac builds
> to allow them to reliably allocate dma coherent memory.
> 
> Fixes: 65a21b71f948 ("powerpc/dma: remove dma_nommu_dma_supported")
> Reported-by: Aaro Koskinen <aaro.koskinen@iki.fi>
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> Tested-by: Larry Finger <Larry.Finger@lwfinger.net>
> Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
> Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>

Applied to powerpc fixes, thanks.

https://git.kernel.org/powerpc/c/9739ab7eda459f0669ec9807e0d9be5020bab88c

cheers