[igt-dev] [PATCH RFC i-g-t 02/10] lib/igt_fb.c: Update tile sizes for GEN12 CCS

[Radhakrishna Sripada]

On Wed, Sep 25, 2019 at 04:09:23PM +0300, Mika Kahola wrote:
> Update tile sizes for GEN12 CCS.
> 
> BSpec: 2422
BSpec:47709 - Gen12
Reviewed-by: Radhakrishna Sripada <radhakrishna.sripada at intel.com>
> 
> Signed-off-by: Mika Kahola <mika.kahola at intel.com>
> ---
>  lib/igt_fb.c | 34 ++++++++++++++++++++++++++++++++--
>  1 file changed, 32 insertions(+), 2 deletions(-)
> 
> diff --git a/lib/igt_fb.c b/lib/igt_fb.c
> index bad3eeca..826d9f70 100644
> --- a/lib/igt_fb.c
> +++ b/lib/igt_fb.c
> @@ -381,6 +381,33 @@ void igt_get_fb_tile_size(int fd, uint64_t modifier, int fb_bpp,
>  			*height_ret = 32;
>  		}
>  		break;
> +	case LOCAL_I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS:
> +		igt_require_intel(fd);
> +		switch (fb_bpp) {
> +		case 8:
> +			*width_ret = 512;
> +			*height_ret = 32;
> +			break;
> +		case 16:
> +			*width_ret = 256;
> +			*height_ret = 32;
> +			break;
> +		case 32:
> +			*width_ret = 128;
> +			*height_ret = 32;
> +			break;
> +		case 64:
> +			*width_ret = 64;
> +			*height_ret = 32;
> +			break;
> +		case 128:
> +			*width_ret = 32;
> +			*height_ret = 32;
> +			break;
> +		default:
> +			igt_assert(false);
> +		}
> +		break;
>  	case LOCAL_I915_FORMAT_MOD_Yf_TILED:
>  	case LOCAL_I915_FORMAT_MOD_Yf_TILED_CCS:
>  		igt_require_intel(fd);
> @@ -435,8 +462,10 @@ void igt_get_fb_tile_size(int fd, uint64_t modifier, int fb_bpp,
>  
>  static bool is_ccs_modifier(uint64_t modifier)
>  {
> -	return modifier == LOCAL_I915_FORMAT_MOD_Y_TILED_CCS ||
> -		modifier == LOCAL_I915_FORMAT_MOD_Yf_TILED_CCS;
> +
> +	return modifier == I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS ||
> +		modifier == I915_FORMAT_MOD_Y_TILED_CCS ||
> +		modifier == I915_FORMAT_MOD_Yf_TILED_CCS;
>  }
>  
>  static unsigned fb_plane_width(const struct igt_fb *fb, int plane)
> @@ -655,6 +684,7 @@ uint64_t igt_fb_mod_to_tiling(uint64_t modifier)
>  		return I915_TILING_X;
>  	case LOCAL_I915_FORMAT_MOD_Y_TILED:
>  	case LOCAL_I915_FORMAT_MOD_Y_TILED_CCS:
> +	case LOCAL_I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS:
>  		return I915_TILING_Y;
>  	case LOCAL_I915_FORMAT_MOD_Yf_TILED:
>  	case LOCAL_I915_FORMAT_MOD_Yf_TILED_CCS:
> -- 
> 2.17.1
> 
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