[PATCH 2/2] drm/amd/display: Enable fp16 also on DCE-11.0 - DCE-12.

[Harry Wentland]

On 2020-05-15 1:19 a.m., Mario Kleiner wrote:
> Testing on a Polaris11 gpu with DCE-11.2 suggests that it
> seems to work fine there, so optimistically enable it for
> DCE-11 and later.
> 
> Signed-off-by: Mario Kleiner <mario.kleiner.de at gmail.com>
> ---
>  drivers/gpu/drm/amd/display/dc/dce110/dce110_resource.c | 2 +-
>  drivers/gpu/drm/amd/display/dc/dce112/dce112_resource.c | 2 +-
>  drivers/gpu/drm/amd/display/dc/dce120/dce120_resource.c | 2 +-
>  3 files changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_resource.c b/drivers/gpu/drm/amd/display/dc/dce110/dce110_resource.c
> index 9597fc79d7fa..a043ddae5149 100644
> --- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_resource.c
> +++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_resource.c
> @@ -410,7 +410,7 @@ static const struct dc_plane_cap plane_cap = {
>  		.pixel_format_support = {
>  				.argb8888 = true,
>  				.nv12 = false,
> -				.fp16 = false
> +				.fp16 = true

Carrizo (DCE 11.0) has a HW bug where FP16 scaling doesn't work. I
recommend we leave it off here.

Harry

>  		},
>  
>  		.max_upscale_factor = {
> diff --git a/drivers/gpu/drm/amd/display/dc/dce112/dce112_resource.c b/drivers/gpu/drm/amd/display/dc/dce112/dce112_resource.c
> index 4a7796de2ff5..51b3fe502670 100644
> --- a/drivers/gpu/drm/amd/display/dc/dce112/dce112_resource.c
> +++ b/drivers/gpu/drm/amd/display/dc/dce112/dce112_resource.c
> @@ -411,7 +411,7 @@ static const struct dc_plane_cap plane_cap = {
>  	.pixel_format_support = {
>  			.argb8888 = true,
>  			.nv12 = false,
> -			.fp16 = false
> +			.fp16 = true
>  	},
>  
>  	.max_upscale_factor = {
> diff --git a/drivers/gpu/drm/amd/display/dc/dce120/dce120_resource.c b/drivers/gpu/drm/amd/display/dc/dce120/dce120_resource.c
> index 9a9764cbd78d..8f362e8c1787 100644
> --- a/drivers/gpu/drm/amd/display/dc/dce120/dce120_resource.c
> +++ b/drivers/gpu/drm/amd/display/dc/dce120/dce120_resource.c
> @@ -516,7 +516,7 @@ static const struct dc_plane_cap plane_cap = {
>  	.pixel_format_support = {
>  			.argb8888 = true,
>  			.nv12 = false,
> -			.fp16 = false
> +			.fp16 = true
>  	},
>  
>  	.max_upscale_factor = {
>