[PATCH i-g-t v5 03/11] lib/intel_blt: Add i915 -> blt tile helper converter
Zbigniew Kempczyński
zbigniew.kempczynski at intel.com
Tue May 14 11:37:18 UTC 2024
On Thu, May 09, 2024 at 07:33:51AM +0200, Zbigniew Kempczyński wrote:
> We have two kind of buffers in IGT - intel-buf for render and
> blt-object for blitter. intel-buf uses I915_TILING* whereas
> blt-object blt_tiling_type (T_*). To construct blt-object from
> intel-buf we need to convert I915_TILING* to T_*. Add function
> which does this conversion.
>
> Signed-off-by: Zbigniew Kempczyński <zbigniew.kempczynski at intel.com>
> Reviewed-by: Karolina Stolarek <karolina.stolarek at intel.com>
> ---
> lib/intel_blt.c | 21 +++++++++++++++++++++
> lib/intel_blt.h | 1 +
> 2 files changed, 22 insertions(+)
>
> diff --git a/lib/intel_blt.c b/lib/intel_blt.c
> index 5a281036c4..946adc538b 100644
> --- a/lib/intel_blt.c
> +++ b/lib/intel_blt.c
> @@ -560,6 +560,27 @@ int blt_tile_to_i915_tile(enum blt_tiling_type tiling)
> return 0;
> }
>
> +/**
> + * i915_tile_to_blt_tile:
> + * @tiling: tiling id
> + *
> + * Returns:
> + * id of blt tiling like T_LINEAR, T_XMAJOR, etc
> + */
> +enum blt_tiling_type i915_tile_to_blt_tile(uint32_t tiling)
> +{
> + switch (tiling) {
> + case I915_TILING_NONE: return T_LINEAR;
> + case I915_TILING_X: return T_XMAJOR;
> + case I915_TILING_Y: return T_YMAJOR;
> + case I915_TILING_4: return T_TILE4;
> + case I915_TILING_64: return T_TILE64;
> + case I915_TILING_Yf: return T_YFMAJOR;
> + default:
> + igt_assert_f(0, "Unknown tiling!\n");
> + }
> +}
> +
> /**
> * blt_get_min_stride
> * @width: width in pixels
> diff --git a/lib/intel_blt.h b/lib/intel_blt.h
> index fcfce69bee..6daf46aea4 100644
> --- a/lib/intel_blt.h
> +++ b/lib/intel_blt.h
> @@ -214,6 +214,7 @@ bool blt_uses_extended_block_copy(int fd);
>
> const char *blt_tiling_name(enum blt_tiling_type tiling);
> int blt_tile_to_i915_tile(enum blt_tiling_type tiling);
> +enum blt_tiling_type i915_tile_to_blt_tile(uint32_t tiling);
>
> uint32_t blt_get_min_stride(uint32_t width, uint32_t bpp,
> enum blt_tiling_type tiling);
> --
> 2.34.1
>
I need those two patches to my current work and as they are r-b'd
and safe I'm going to merge them individually.
--
Zbigniew
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