From: Rob Herring <robh@kernel.org>
To: Shradha Todi <shradha.t@samsung.com>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
PCI <linux-pci@vger.kernel.org>,
Jingoo Han <jingoohan1@gmail.com>,
Gustavo Pimentel <gustavo.pimentel@synopsys.com>,
Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
Bjorn Helgaas <bhelgaas@google.com>,
Pankaj Dubey <pankaj.dubey@samsung.com>,
sriram.dash@samsung.com, niyas.ahmed@samsung.com,
p.rajanbabu@samsung.com, l.mehra@samsung.com,
hari.tv@samsung.com
Subject: Re: [PATCH v2] PCI: dwc: Add upper limit address for outbound iATU
Date: Wed, 27 Jan 2021 11:39:19 -0600 [thread overview]
Message-ID: <CAL_JsqKuvD1s0u5uphmc3o4d7vsNui6hC2b9Q3woE-nshfJi0g@mail.gmail.com> (raw)
In-Reply-To: <1609930210-19227-1-git-send-email-shradha.t@samsung.com>
On Wed, Jan 6, 2021 at 4:52 AM Shradha Todi <shradha.t@samsung.com> wrote:
>
> The size parameter is unsigned long type which can accept size > 4GB. In
> that case, the upper limit address must be programmed. Add support to
> program the upper limit address and set INCREASE_REGION_SIZE in case size >
> 4GB.
>
> Signed-off-by: Shradha Todi <shradha.t@samsung.com>
> ---
> v1: https://lkml.org/lkml/2020/12/20/187
> v2:
> Addressed Rob's review comment and added PCI version check condition to
> avoid writing to reserved registers.
>
> drivers/pci/controller/dwc/pcie-designware.c | 9 +++++++--
> drivers/pci/controller/dwc/pcie-designware.h | 1 +
> 2 files changed, 8 insertions(+), 2 deletions(-)
Reviewed-by: Rob Herring <robh@kernel.org>
next prev parent reply other threads:[~2021-01-27 17:40 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20210106105019epcas5p377bdbff5cd9e14e5107ccbf2b87b5754@epcas5p3.samsung.com>
2021-01-06 10:50 ` [PATCH v2] PCI: dwc: Add upper limit address for outbound iATU Shradha Todi
2021-01-06 11:31 ` Pankaj Dubey
2021-01-27 9:16 ` Shradha Todi
2021-01-27 17:39 ` Rob Herring [this message]
2021-02-01 18:57 ` Lorenzo Pieralisi
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