[PATCH 1/2] drm/etnaviv: add missing quirks for GC300

[Christian Gmeiner]

>
> The GC300's features register doesn't specify that a 2D pipe is
> available, and like the GC600, its idle register reports zero bits where
> modules aren't present.
>
> Signed-off-by: Doug Brown <doug at schmorgal.com>

Reviewed-by: Christian Gmeiner <christian.gmeiner at gmail.com>

> ---
>  drivers/gpu/drm/etnaviv/etnaviv_gpu.c | 11 +++++++++--
>  1 file changed, 9 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
> index 37018bc55810..f667e7906d1f 100644
> --- a/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
> +++ b/drivers/gpu/drm/etnaviv/etnaviv_gpu.c
> @@ -416,6 +416,12 @@ static void etnaviv_hw_identify(struct etnaviv_gpu *gpu)
>         if (gpu->identity.model == chipModel_GC700)
>                 gpu->identity.features &= ~chipFeatures_FAST_CLEAR;
>
> +       /* These models/revisions don't have the 2D pipe bit */
> +       if ((gpu->identity.model == chipModel_GC500 &&
> +            gpu->identity.revision <= 2) ||
> +           gpu->identity.model == chipModel_GC300)
> +               gpu->identity.features |= chipFeatures_PIPE_2D;
> +
>         if ((gpu->identity.model == chipModel_GC500 &&
>              gpu->identity.revision < 2) ||
>             (gpu->identity.model == chipModel_GC300 &&
> @@ -449,8 +455,9 @@ static void etnaviv_hw_identify(struct etnaviv_gpu *gpu)
>                                 gpu_read(gpu, VIVS_HI_CHIP_MINOR_FEATURE_5);
>         }
>
> -       /* GC600 idle register reports zero bits where modules aren't present */
> -       if (gpu->identity.model == chipModel_GC600)
> +       /* GC600/300 idle register reports zero bits where modules aren't present */
> +       if (gpu->identity.model == chipModel_GC600 ||
> +           gpu->identity.model == chipModel_GC300)
>                 gpu->idle_mask = VIVS_HI_IDLE_STATE_TX |
>                                  VIVS_HI_IDLE_STATE_RA |
>                                  VIVS_HI_IDLE_STATE_SE |
> --
> 2.25.1
>


-- 
greets
--
Christian Gmeiner, MSc

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