linux-kernel - Re: [PATCH 1/3] media: venus: core: Set up secure memory ranges for SC7280

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Date:   Fri, 29 Sep 2023 09:41:36 +0100
From:   Bryan O'Donoghue <bryan.odonoghue@...aro.org>
To:     Luca Weiss <luca.weiss@...rphone.com>,
        Stanimir Varbanov <stanimir.k.varbanov@...il.com>,
        Vikash Garodia <quic_vgarodia@...cinc.com>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        cros-qcom-dts-watchers@...omium.org,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>
Cc:     ~postmarketos/upstreaming@...ts.sr.ht, phone-devel@...r.kernel.org,
        linux-media@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Subject: Re: [PATCH 1/3] media: venus: core: Set up secure memory ranges for
 SC7280

On 29/09/2023 09:38, Luca Weiss wrote:
> Not all SC7280 devices ship with ChromeOS firmware. Other devices need
> PAS for image authentication. That requires the predefined virtual
> address ranges to be passed via scm calls. Define them to enable Venus
> on non-CrOS SC7280 devices.
> 
> Signed-off-by: Luca Weiss <luca.weiss@...rphone.com>
> ---
>   drivers/media/platform/qcom/venus/core.c | 4 ++++
>   1 file changed, 4 insertions(+)
> 
> diff --git a/drivers/media/platform/qcom/venus/core.c b/drivers/media/platform/qcom/venus/core.c
> index 054b8e74ba4f..5c6baa0f4d45 100644
> --- a/drivers/media/platform/qcom/venus/core.c
> +++ b/drivers/media/platform/qcom/venus/core.c
> @@ -881,6 +881,10 @@ static const struct venus_resources sc7280_res = {
>   	.vmem_size = 0,
>   	.vmem_addr = 0,
>   	.dma_mask = 0xe0000000 - 1,
> +	.cp_start = 0,
> +	.cp_size = 0x25800000,
> +	.cp_nonpixel_start = 0x1000000,
> +	.cp_nonpixel_size = 0x24800000,
>   	.fwname = "qcom/vpu-2.0/venus.mbn",
>   };
>   
> 
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@...aro.org>