linux-kernel - Re: [PATCH 0/3] Add support to handle prefetchable memory

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Message-ID: <SLXP216MB04777D651A59246A60D036A8AA1B0@SLXP216MB0477.KORP216.PROD.OUTLOOK.COM>
Date:   Sat, 24 Oct 2020 04:03:41 +0000
From:   Jingoo Han <jingoohan1@...il.com>
To:     Vidya Sagar <vidyas@...dia.com>,
        "gustavo.pimentel@...opsys.com" <gustavo.pimentel@...opsys.com>,
        "lorenzo.pieralisi@....com" <lorenzo.pieralisi@....com>,
        "bhelgaas@...gle.com" <bhelgaas@...gle.com>,
        "amurray@...goodpenguin.co.uk" <amurray@...goodpenguin.co.uk>,
        "robh@...nel.org" <robh@...nel.org>,
        "treding@...dia.com" <treding@...dia.com>,
        "jonathanh@...dia.com" <jonathanh@...dia.com>
CC:     "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "kthota@...dia.com" <kthota@...dia.com>,
        "mmaddireddy@...dia.com" <mmaddireddy@...dia.com>,
        "sagar.tv@...il.com" <sagar.tv@...il.com>,
        Han Jingoo <jingoohan1@...il.com>
Subject: Re: [PATCH 0/3] Add support to handle prefetchable memory

On 10/23/20, 3:57 PM, Vidya Sagar wrote:
> 
> This patch series adds support for configuring the DesignWare IP's ATU
> region for prefetchable memory translations.
> It first starts by flagging a warning if the size of non-prefetchable
> aperture goes beyond 32-bit as PCIe spec doesn't allow it.
> And then adds required support for programming the ATU to handle higher
> (i.e. >4GB) sizes and then finally adds support for differentiating
> between prefetchable and non-prefetchable regions and configuring one of
> the ATU regions for prefetchable memory translations purpose.
>
> Vidya Sagar (3):
>   PCI: of: Warn if non-prefetchable memory aperture size is > 32-bit
>   PCI: dwc: Add support to program ATU for >4GB memory aperture sizes
>   PCI: dwc: Add support to handle prefetchable memory mapping

For 2nd & 3rd,
Acked-by: Jingoo <jingoohan1@...il.com>
But, I still want someone to ack 1st patch, not me.

To Vidya,
If possible, can you ask your coworker to give 'Tested-by'? It will be very helpful.
Thank you.

Best regards,
Jingoo Han


>
>  .../pci/controller/dwc/pcie-designware-host.c | 39 ++++++++++++++++---
>  drivers/pci/controller/dwc/pcie-designware.c  | 12 +++---
>  drivers/pci/controller/dwc/pcie-designware.h  |  4 +-
>  drivers/pci/of.c                              |  5 +++
>  4 files changed, 48 insertions(+), 12 deletions(-)
>
> -- 
> 2.17.1