On Fri, Oct 12, 2018 at 01:46:42PM -0500, Jason Ekstrand wrote:
> ---
> src/intel/isl/isl_gen7.c | 9 +++++++++
> 1 file changed, 9 insertions(+)
>
> diff --git a/src/intel/isl/isl_gen7.c b/src/intel/isl/isl_gen7.c
> index f6f7e1ba7dc..fe420e4fbd8 100644
> --- a/src/intel/isl/isl_gen7.c
> +++ b/src/intel/isl/isl_gen7.c
> @@ -217,6 +217,15 @@ isl_gen6_filter_tiling(const struct isl_device *dev,
> if (isl_surf_usage_is_depth(info->usage)) {
> /* Depth requires Y. */
> *flags &= ISL_TILING_ANY_Y_MASK;
> +
> + /* The Yf and Ys tilings for 1D can't be easily faked as a 2D surface
> + * because there's no calculable qpitch.
Why is this problem for depth only?
> + *
> + * TODO: In theory, on could fake it with surface offset tricks but
> + * that's currently being left as an exercise to the reader.
> + */
> + if (info->dim == ISL_SURF_DIM_1D)
> + *flags &= ~ISL_TILING_STD_Y_MASK;
> }
>
> /* Separate stencil requires W tiling, and W tiling requires separate
> --
> 2.19.1
>
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