From: Xu Yilun <yilun.xu@linux.intel.com>
To: "Manne, Nava kishore" <nava.kishore.manne@amd.com>
Cc: "mdf@kernel.org" <mdf@kernel.org>,
"hao.wu@intel.com" <hao.wu@intel.com>,
"yilun.xu@intel.com" <yilun.xu@intel.com>,
"trix@redhat.com" <trix@redhat.com>,
"linux-fpga@vger.kernel.org" <linux-fpga@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"Pandey, Radhey Shyam" <radhey.shyam.pandey@amd.com>
Subject: Re: [PATCH] fpga: versal: Add support for 44-bit DMA operations
Date: Thu, 12 Oct 2023 13:09:48 +0800 [thread overview]
Message-ID: <ZSd/nI/HWEYxcm5a@yilunxu-OptiPlex-7050> (raw)
In-Reply-To: <DM6PR12MB3993439C9BE6F52664D9C394CDCDA@DM6PR12MB3993.namprd12.prod.outlook.com>
On Tue, Oct 10, 2023 at 05:37:43AM +0000, Manne, Nava kishore wrote:
> Hi Yilun,
>
> Thanks for providing the review comments.
> Please find my response inline.
>
> > -----Original Message-----
> > From: Xu Yilun <yilun.xu@linux.intel.com>
> > Sent: Saturday, October 7, 2023 12:47 PM
> > To: Manne, Nava kishore <nava.kishore.manne@amd.com>
> > Cc: mdf@kernel.org; hao.wu@intel.com; yilun.xu@intel.com;
> > trix@redhat.com; linux-fpga@vger.kernel.org; linux-kernel@vger.kernel.org;
> > Pandey, Radhey Shyam <radhey.shyam.pandey@amd.com>
> > Subject: Re: [PATCH] fpga: versal: Add support for 44-bit DMA operations
> >
> > On Tue, Oct 03, 2023 at 12:44:09PM +0530, Nava kishore Manne wrote:
> > > The existing implementation support only 32-bit DMA operation.
> > > So, it fails to load the bitstream for the high DDR designs(Beyond 4GB).
> > > To fix this issue update the DMA mask handling logic to support 44-bit
> >
> > This is the HW defined DMA addressing capability. Does the device only
> > support up to 44 bits DMA? Any Doc?
> >
> The versal platform supports a maximum physical address size is 44-bit in AArch64.
> For more details, please refer the Versal TRM (Memory space- section):
> https://docs.xilinx.com/r/en-US/am011-versal-acap-trm/Memory-Space
Acked-by: Xu Yilun <yilun.xu@intel.com>
Applied.
>
> Regards,
> Navakishore.
>
prev parent reply other threads:[~2023-10-12 5:12 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-03 7:14 [PATCH] fpga: versal: Add support for 44-bit DMA operations Nava kishore Manne
2023-10-06 2:54 ` Pandey, Radhey Shyam
2023-10-07 7:16 ` Xu Yilun
2023-10-10 5:37 ` Manne, Nava kishore
2023-10-12 5:09 ` Xu Yilun [this message]
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