Re: [Freedreno] [PATCH v8 11/18] drm/msm/adreno: Disable has_cached_coherent in GMU wrapper configurations

[Akhil P Oommen]

On Mon, May 29, 2023 at 03:52:30PM +0200, Konrad Dybcio wrote:
> 
> A610 and A619_holi don't support the feature. Disable it to make the GPU stop
> crashing after almost each and every submission - the received data on
> the GPU end was simply incomplete in garbled, resulting in almost nothing
> being executed properly. Extend the disablement to adreno_has_gmu_wrapper,
> as none of the GMU wrapper Adrenos that don't support yet seem to feature it.
> 
> Signed-off-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>
> ---
Reviewed-by: Akhil P Oommen <quic_akhilpo@xxxxxxxxxxx>

-Akhil
>  drivers/gpu/drm/msm/adreno/adreno_device.c | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/msm/adreno/adreno_device.c b/drivers/gpu/drm/msm/adreno/adreno_device.c
> index 8cff86e9d35c..b133755a56c4 100644
> --- a/drivers/gpu/drm/msm/adreno/adreno_device.c
> +++ b/drivers/gpu/drm/msm/adreno/adreno_device.c
> @@ -551,7 +551,6 @@ static int adreno_bind(struct device *dev, struct device *master, void *data)
>  		config.rev.minor, config.rev.patchid);
>  
>  	priv->is_a2xx = config.rev.core == 2;
> -	priv->has_cached_coherent = config.rev.core >= 6;
>  
>  	gpu = info->init(drm);
>  	if (IS_ERR(gpu)) {
> @@ -563,6 +562,10 @@ static int adreno_bind(struct device *dev, struct device *master, void *data)
>  	if (ret)
>  		return ret;
>  
> +	if (config.rev.core >= 6)
> +		if (!adreno_has_gmu_wrapper(to_adreno_gpu(gpu)))
> +			priv->has_cached_coherent = true;
> +
>  	return 0;
>  }
>  
> 
> -- 
> 2.40.1
>