linux-kernel - Re: [RFC PATCH 4/4] drm/msm: switch msm_kms to use msm_iommu_disp

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Date: Sun, 19 May 2024 11:39:41 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Abhinav Kumar <quic_abhinavk@...cinc.com>
Cc: freedreno@...ts.freedesktop.org, Rob Clark <robdclark@...il.com>, 
	Sean Paul <sean@...rly.run>, Marijn Suijten <marijn.suijten@...ainline.org>, 
	David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>, dri-devel@...ts.freedesktop.org, 
	seanpaul@...omium.org, swboyd@...omium.org, dianders@...omium.org, 
	quic_jesszhan@...cinc.com, linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH 4/4] drm/msm: switch msm_kms to use
 msm_iommu_disp_new()

On Fri, May 17, 2024 at 04:37:59PM -0700, Abhinav Kumar wrote:
> Switch msm_kms to use msm_iommu_disp_new() so that the newly
> registered fault handler will kick-in during any mmu faults.
> 
> Signed-off-by: Abhinav Kumar <quic_abhinavk@...cinc.com>
> ---
>  drivers/gpu/drm/msm/msm_kms.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/gpu/drm/msm/msm_kms.c b/drivers/gpu/drm/msm/msm_kms.c
> index 62c8e6163e81..1859efbbff1d 100644
> --- a/drivers/gpu/drm/msm/msm_kms.c
> +++ b/drivers/gpu/drm/msm/msm_kms.c
> @@ -181,7 +181,7 @@ struct msm_gem_address_space *msm_kms_init_aspace(struct drm_device *dev)
>  	else
>  		iommu_dev = mdss_dev;
>  
> -	mmu = msm_iommu_new(iommu_dev, 0);
> +	mmu = msm_iommu_disp_new(iommu_dev, 0);
>  	if (IS_ERR(mmu))
>  		return ERR_CAST(mmu);

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

Note to myself: make mdp4 use msm_kms_init_aspace().

-- 
With best wishes
Dmitry