linux-kernel - Re: [PATCH] drm/msm/adreno: Assign revn to A635

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Date:   Wed, 28 Jun 2023 22:54:19 +0300
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     Konrad Dybcio <konrad.dybcio@...aro.org>,
        Rob Clark <robdclark@...il.com>,
        Abhinav Kumar <quic_abhinavk@...cinc.com>,
        Sean Paul <sean@...rly.run>, David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>
Cc:     Marijn Suijten <marijn.suijten@...ainline.org>,
        linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        freedreno@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drm/msm/adreno: Assign revn to A635

On 28/06/2023 22:05, Konrad Dybcio wrote:
> Recently, a WARN_ON() was introduced to ensure that revn is filled before
> adreno_is_aXYZ is called. This however doesn't work very well when revn is
> 0 by design (such as for A635). Fill it in as a stopgap solution for
> -fixes.
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@...aro.org>

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>

I'd have probably added:

Fixes: cc943f43ece7 ("drm/msm/adreno: warn if chip revn is verified 
before being set")

or

Fixes: 192f4ee3e408 ("drm/msm/a6xx: Add support for Adreno 7c Gen 3 gpu")


> ---
>   drivers/gpu/drm/msm/adreno/adreno_device.c | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/gpu/drm/msm/adreno/adreno_device.c b/drivers/gpu/drm/msm/adreno/adreno_device.c
> index cb94cfd137a8..8ea7eae9fc52 100644
> --- a/drivers/gpu/drm/msm/adreno/adreno_device.c
> +++ b/drivers/gpu/drm/msm/adreno/adreno_device.c
> @@ -345,6 +345,7 @@ static const struct adreno_info gpulist[] = {
>   		.address_space_size = SZ_16G,
>   	}, {
>   		.rev = ADRENO_REV(6, 3, 5, ANY_ID),
> +		.revn = 635,
>   		.fw = {
>   			[ADRENO_FW_SQE] = "a660_sqe.fw",
>   			[ADRENO_FW_GMU] = "a660_gmu.bin",
> 
> ---
> base-commit: 5c875096d59010cee4e00da1f9c7bdb07a025dc2
> change-id: 20230628-topic-a635-1b3c2c987417
> 
> Best regards,

-- 
With best wishes
Dmitry