[Mesa-dev] [PATCH 09/17] intel: Extend the force_y_tiling flag to allow forcing no tiling.

Chad Versace chad.versace at linux.intel.com
Tue May 28 14:11:34 PDT 2013


For patches 1 2 3 5 6: Reviewed-by.
For patches 4 and 7, with the comments fixed: Reviewed-by.
Patch 8, I don't agree with it.
Patch 9, I gave an r-b for v2.
Patch 10-17: I have to walk away now. I plan to finish review this evening.


On 05/24/2013 01:56 PM, Eric Anholt wrote:
> For a blit-uploaded temporary, it's faster on current hardware to memcpy
> the data into a linear CPU mapping than to go through the GTT.
> ---
>   src/mesa/drivers/dri/intel/intel_fbo.c          |  2 +-
>   src/mesa/drivers/dri/intel/intel_mipmap_tree.c  | 22 +++++++++++++---------
>   src/mesa/drivers/dri/intel/intel_mipmap_tree.h  |  2 +-
>   src/mesa/drivers/dri/intel/intel_tex_image.c    |  2 +-
>   src/mesa/drivers/dri/intel/intel_tex_validate.c |  2 +-
>   5 files changed, 17 insertions(+), 13 deletions(-)
>
> diff --git a/src/mesa/drivers/dri/intel/intel_fbo.c b/src/mesa/drivers/dri/intel/intel_fbo.c
> index 05ff784..73ed91d 100644
> --- a/src/mesa/drivers/dri/intel/intel_fbo.c
> +++ b/src/mesa/drivers/dri/intel/intel_fbo.c
> @@ -924,7 +924,7 @@ intel_renderbuffer_move_to_temp(struct intel_context *intel,
>                                    width, height, depth,
>                                    true,
>                                    irb->mt->num_samples,
> -                                 false /* force_y_tiling */);
> +                                 0 /* force_tiling_mask */);
>
>      if (intel->vtbl.is_hiz_depth_format(intel, new_mt->format)) {
>         intel_miptree_alloc_hiz(intel, new_mt);
> diff --git a/src/mesa/drivers/dri/intel/intel_mipmap_tree.c b/src/mesa/drivers/dri/intel/intel_mipmap_tree.c
> index c3e55f4..d41fbdf 100644
> --- a/src/mesa/drivers/dri/intel/intel_mipmap_tree.c
> +++ b/src/mesa/drivers/dri/intel/intel_mipmap_tree.c
> @@ -265,7 +265,7 @@ intel_miptree_create_layout(struct intel_context *intel,
>                                               mt->logical_depth0,
>                                               true,
>                                               num_samples,
> -                                            false /* force_y_tiling */);
> +                                            0 /* force_tiling_mask */);
>         if (!mt->stencil_mt) {
>   	 intel_miptree_release(&mt);
>   	 return NULL;
> @@ -309,7 +309,7 @@ intel_miptree_choose_tiling(struct intel_context *intel,
>                               gl_format format,
>                               uint32_t width0,
>                               uint32_t num_samples,
> -                            bool force_y_tiling,
> +                            int force_tiling_mask,
>                               struct intel_mipmap_tree *mt)
>   {
>
> @@ -320,8 +320,12 @@ intel_miptree_choose_tiling(struct intel_context *intel,
>         return I915_TILING_NONE;
>      }
>
> -   if (force_y_tiling)
> -      return I915_TILING_Y;
> +   /* Some usages may want only one type of tiling, like depth miptrees (Y
> +    * tiled), or temporary BOs for uploading data once (linear).  So far the
> +    * mask only ever has one bit set.
> +    */
> +   if (force_tiling_mask)
> +      return ffs(force_tiling_mask) - 1;
>
>      if (num_samples > 1) {
>         /* From p82 of the Sandy Bridge PRM, dw3[1] of SURFACE_STATE ("Tiled
> @@ -375,7 +379,7 @@ intel_miptree_create(struct intel_context *intel,
>   		     GLuint depth0,
>   		     bool expect_accelerated_upload,
>                        GLuint num_samples,
> -                     bool force_y_tiling)
> +                     int force_tiling_mask)
>   {
>      struct intel_mipmap_tree *mt;
>      gl_format tex_format = format;
> @@ -441,7 +445,7 @@ intel_miptree_create(struct intel_context *intel,
>      }
>
>      uint32_t tiling = intel_miptree_choose_tiling(intel, format, width0,
> -                                                 num_samples, force_y_tiling,
> +                                                 num_samples, force_tiling_mask,
>                                                    mt);
>      bool y_or_x = tiling == (I915_TILING_Y | I915_TILING_X);
>
> @@ -570,7 +574,7 @@ intel_miptree_create_for_renderbuffer(struct intel_context *intel,
>
>      mt = intel_miptree_create(intel, GL_TEXTURE_2D, format, 0, 0,
>   			     width, height, depth, true, num_samples,
> -                             false /* force_y_tiling */);
> +                             0 /* force_tiling_mask */);
>      if (!mt)
>         goto fail;
>
> @@ -1008,7 +1012,7 @@ intel_miptree_alloc_mcs(struct intel_context *intel,
>                                        mt->logical_depth0,
>                                        true,
>                                        0 /* num_samples */,
> -                                     true /* force_y_tiling */);
> +                                     (1 << I915_TILING_Y));
>
>      /* From the Ivy Bridge PRM, Vol 2 Part 1 p326:
>       *
> @@ -1089,7 +1093,7 @@ intel_miptree_alloc_hiz(struct intel_context *intel,
>                                        mt->logical_depth0,
>                                        true,
>                                        mt->num_samples,
> -                                     false /* force_y_tiling */);
> +                                     0 /* force_tiling_mask */);
>
>      if (!mt->hiz_mt)
>         return false;
> diff --git a/src/mesa/drivers/dri/intel/intel_mipmap_tree.h b/src/mesa/drivers/dri/intel/intel_mipmap_tree.h
> index 543182a..4ccbd0d 100644
> --- a/src/mesa/drivers/dri/intel/intel_mipmap_tree.h
> +++ b/src/mesa/drivers/dri/intel/intel_mipmap_tree.h
> @@ -399,7 +399,7 @@ struct intel_mipmap_tree *intel_miptree_create(struct intel_context *intel,
>                                                  GLuint depth0,
>   					       bool expect_accelerated_upload,
>                                                  GLuint num_samples,
> -                                               bool force_y_tiling);
> +                                               int force_tiling_mask);
>
>   struct intel_mipmap_tree *
>   intel_miptree_create_layout(struct intel_context *intel,
> diff --git a/src/mesa/drivers/dri/intel/intel_tex_image.c b/src/mesa/drivers/dri/intel/intel_tex_image.c
> index 4e307f8..a3928bb 100644
> --- a/src/mesa/drivers/dri/intel/intel_tex_image.c
> +++ b/src/mesa/drivers/dri/intel/intel_tex_image.c
> @@ -103,7 +103,7 @@ intel_miptree_create_for_teximage(struct intel_context *intel,
>   			       depth,
>   			       expect_accelerated_upload,
>                                  intelImage->base.Base.NumSamples,
> -                               false /* force_y_tiling */);
> +                               0 /* force_tiling_mask */);
>   }
>
>   /* XXX: Do this for TexSubImage also:
> diff --git a/src/mesa/drivers/dri/intel/intel_tex_validate.c b/src/mesa/drivers/dri/intel/intel_tex_validate.c
> index eaa2561..8f43db5 100644
> --- a/src/mesa/drivers/dri/intel/intel_tex_validate.c
> +++ b/src/mesa/drivers/dri/intel/intel_tex_validate.c
> @@ -106,7 +106,7 @@ intel_finalize_mipmap_tree(struct intel_context *intel, GLuint unit)
>                                             depth,
>   					  true,
>                                             0 /* num_samples */,
> -                                          false /* force_y_tiling */);
> +                                          0 /* force_tiling_mask */);
>         if (!intelObj->mt)
>            return false;
>      }
>



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