Re: [PATCH] drm/panfrost: add Mali-G68 support

["Adrián Larumbe" <adrian.larumbe@collabora.com>]

Queued to drm-misc-next.

One thing though, I had to adjust the indentation of the GPU_REV() macro before merging.
Not a big deal, but always make sure to run the following in your branch before submission:

./scripts/checkpatch.pl --strict --git first_commit~..HEAD

Also, I suppose you didn't have a chance to test it on a g68_r1p0. That would be of interest
because of HW_ISSUE_TTRX_3485, which seems to mandate the submission of a dummy job before
any real further work. It seems at the moment there's no such a workaround either in the
UM Mesa driver or the Panfrost KMD.

Maybe Steven or Boris could elaborate on this?

On 03.08.2026 12:35, Markuss Broks via B4 Relay wrote:
> From: Markuss Broks <markuss.broks@gmail.com>
> 
> Add the features, issues, and ID for Mali-G68, a first-generation
> (v9) Valhall GPU.
> Tested on Exynos8835: the GPU reports GPU_ID 0x9204 (G68 r1p1).
> 
> Signed-off-by: Markuss Broks <markuss.broks@gmail.com>
> ---
>  drivers/gpu/drm/panfrost/panfrost_features.h | 2 ++
>  drivers/gpu/drm/panfrost/panfrost_gpu.c      | 3 +++
>  drivers/gpu/drm/panfrost/panfrost_issues.h   | 8 ++++++++
>  3 files changed, 13 insertions(+)
> 
> diff --git a/drivers/gpu/drm/panfrost/panfrost_features.h b/drivers/gpu/drm/panfrost/panfrost_features.h
> index 52f9d69f6db9..34c65847192f 100644
> --- a/drivers/gpu/drm/panfrost/panfrost_features.h
> +++ b/drivers/gpu/drm/panfrost/panfrost_features.h
> @@ -121,6 +121,8 @@ enum panfrost_hw_feature {
>  	BIT_ULL(HW_FEATURE_IDVS_GROUP_SIZE) | \
>  	BIT_ULL(HW_FEATURE_CLEAN_ONLY_SAFE))
>  
> +#define hw_features_g68 hw_features_g57
> +
>  static inline bool panfrost_has_hw_feature(struct panfrost_device *pfdev,
>  					   enum panfrost_hw_feature feat)
>  {
> diff --git a/drivers/gpu/drm/panfrost/panfrost_gpu.c b/drivers/gpu/drm/panfrost/panfrost_gpu.c
> index 7d555e63e21a..83223192a544 100644
> --- a/drivers/gpu/drm/panfrost/panfrost_gpu.c
> +++ b/drivers/gpu/drm/panfrost/panfrost_gpu.c
> @@ -242,6 +242,9 @@ static const struct panfrost_model gpu_models[] = {
>  	/* MediaTek MT8188 Mali-G57 MC3 */
>  	GPU_MODEL(g57, 0x9093,
>  		GPU_REV(g57, 0, 0)),
> +
> +	GPU_MODEL(g68, 0x9004,
> +		GPU_REV(g68, 1, 0), GPU_REV(g68, 1, 1)),
>  	{0},
>  };
>  
> diff --git a/drivers/gpu/drm/panfrost/panfrost_issues.h b/drivers/gpu/drm/panfrost/panfrost_issues.h
> index eb60cb83667a..dd39946bb572 100644
> --- a/drivers/gpu/drm/panfrost/panfrost_issues.h
> +++ b/drivers/gpu/drm/panfrost/panfrost_issues.h
> @@ -265,6 +265,14 @@ enum panfrost_hw_issue {
>  #define hw_issues_g57_r0p0 (\
>  	BIT_ULL(HW_ISSUE_TTRX_3485))
>  
> +#define hw_issues_g68 (\
> +	BIT_ULL(HW_ISSUE_TTRX_2968_TTRX_3162))
> +
> +#define hw_issues_g68_r1p0 (\
> +	BIT_ULL(HW_ISSUE_TTRX_3485))
> +
> +#define hw_issues_g68_r1p1 0
> +
>  static inline bool panfrost_has_hw_issue(const struct panfrost_device *pfdev,
>  					 enum panfrost_hw_issue issue)
>  {
> 
> ---
> base-commit: 415606a7be939835db9b0d6b711887586646346d
> change-id: 20260803-staging-mainline-ebe89543b632
> 
> Best regards,
> --  
> Markuss Broks <markuss.broks@gmail.com>



Adrian Larumbe