linux-kernel - RE: [PATCH] dmaengine: zynqmp_dma: Sync DMA and coherent masks

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Date:   Tue, 21 Mar 2023 15:04:54 +0000
From:   "Katakam, Harini" <harini.katakam@....com>
To:     "Simek, Michal" <michal.simek@....com>,
        "vkoul@...nel.org" <vkoul@...nel.org>,
        "romain.perier@...il.com" <romain.perier@...il.com>,
        "allen.lkml@...il.com" <allen.lkml@...il.com>,
        "yukuai3@...wei.com" <yukuai3@...wei.com>
CC:     "dmaengine@...r.kernel.org" <dmaengine@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "harinikatakamlinux@...il.com" <harinikatakamlinux@...il.com>,
        "Pandey, Radhey Shyam" <radhey.shyam.pandey@....com>
Subject: RE: [PATCH] dmaengine: zynqmp_dma: Sync DMA and coherent masks

Hi Michal,

> -----Original Message-----
> From: Simek, Michal <michal.simek@....com>
> Sent: Tuesday, March 21, 2023 8:15 PM
> To: Katakam, Harini <harini.katakam@....com>; vkoul@...nel.org;
> romain.perier@...il.com; allen.lkml@...il.com; yukuai3@...wei.com
> Cc: dmaengine@...r.kernel.org; linux-arm-kernel@...ts.infradead.org; linux-
> kernel@...r.kernel.org; harinikatakamlinux@...il.com; Pandey, Radhey
> Shyam <radhey.shyam.pandey@....com>
> Subject: Re: [PATCH] dmaengine: zynqmp_dma: Sync DMA and coherent
> masks
> 
> 
> 
> On 3/16/23 10:33, Harini Katakam wrote:
> > Align ZDMA DMA as well as coherent memory masks to 44 bit. This is
> > required when using >32 bit memory regions.
> 
> It doesn't look like description aligned with the change below.
> You are using 44 bit already and the patch itself just checking return value
> from that function.

Current code sets dma_set_mask; I changed it to dma_set_mask_and_coherent

Regards,
Harini

> 
> M