Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Message-ID: <b257ec4b-fb59-9118-0efb-abf87ea54695@linaro.org>
Date:   Wed, 21 Sep 2022 09:28:13 +0200
MIME-Version: 1.0
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101
 Thunderbird/91.13.0
Subject: Re: [PATCH v3 1/8] memory: tegra: Add API for retrieving carveout
 bounds
Content-Language: en-US
To:     Mikko Perttunen <cyndis@kapsi.fi>,
        Thierry Reding <thierry.reding@gmail.com>,
        David Airlie <airlied@linux.ie>,
        Daniel Vetter <daniel@ffwll.ch>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Jonathan Hunter <jonathanh@nvidia.com>
Cc:     Mikko Perttunen <mperttunen@nvidia.com>,
        Ashish Mhetre <amhetre@nvidia.com>,
        Sameer Pujar <spujar@nvidia.com>,
        dri-devel@lists.freedesktop.org, linux-tegra@vger.kernel.org,
        devicetree@vger.kernel.org, linux-kernel@vger.kernel.org
References: <20220920081203.3237744-1-cyndis@kapsi.fi>
 <20220920081203.3237744-2-cyndis@kapsi.fi>
From:   Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
In-Reply-To: <20220920081203.3237744-2-cyndis@kapsi.fi>
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 7bit
Precedence: bulk

On 20/09/2022 10:11, Mikko Perttunen wrote:
> From: Mikko Perttunen <mperttunen@nvidia.com>
> 
> On Tegra234 NVDEC firmware is loaded from a secure carveout, where it
> has been loaded by a bootloader. When booting NVDEC, we need to tell it
> the address of this firmware, which we can determine by checking the
> starting address of the carveout. As such, add an MC API to query the
> bounds of carveouts, and add related information on Tegra234.
> 
> Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
> ---
> v2:
> - Add check for 64-bit phys_addr_t. In practice phys_addr_t
>   is always 64 bits where this runs, but it avoids warnings in
>   compile test.
> ---
>  drivers/memory/tegra/mc.c       | 25 +++++++++++++++++++++++++
>  drivers/memory/tegra/tegra234.c |  5 +++++
>  include/soc/tegra/mc.h          | 11 +++++++++++

I still need here Thierry's ack.

Best regards,
Krzysztof