[PATCH v2 6/6] drm/msm/a7xx: Add missing register writes from downstream

[Konrad Dybcio]

On 26.04.2024 8:34 PM, Connor Abbott wrote:
> This isn't known to fix anything yet, but it's a good idea to add it.
> 
> Signed-off-by: Connor Abbott <cwabbott0 at gmail.com>
> ---
>  drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 8 ++++++++
>  1 file changed, 8 insertions(+)
> 
> diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
> index 4a3b12b20802..d88ec857f1cb 100644
> --- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
> +++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
> @@ -1953,6 +1953,14 @@ static int hw_init(struct msm_gpu *gpu)
>  				  BIT(6) | BIT(5) | BIT(3) | BIT(2) | BIT(1));
>  	}
>  
> +	if (adreno_is_a750(adreno_gpu)) {
> +		gpu_rmw(gpu, REG_A6XX_RB_CMP_DBG_ECO_CNTL, BIT(19), BIT(19));

"/* Disable ubwc merged UFC request feature */"

> +
> +		gpu_write(gpu, REG_A6XX_TPL1_DBG_ECO_CNTL1, 0xc0700);

"/* Enable TP flaghint and other performance settings */"

> +	} else if (adreno_is_a7xx(adreno_gpu)) {
> +		gpu_rmw(gpu, REG_A6XX_RB_CMP_DBG_ECO_CNTL, BIT(19), BIT(19));

This is supposed to be bit(11) on !A750:

"/* Disable non-ubwc read reqs from passing write reqs */"

Konrad