Seems reasonable  Are you sure this isn't somehow required on old hardware?

Reviewed-by: Jason Ekstrand <[email protected]>

On Wed, Feb 22, 2017 at 3:39 AM, Samuel Iglesias Gonsálvez <
[email protected]> wrote:

> From IVB PRM, SURFACE_STATE::Height:
>
> "For typed buffer and structured buffer surfaces, the number of
>  entries in the buffer ranges from 1 to 2^27 . For raw buffer
>  surfaces, the number of entries in the buffer is the number of bytes
>  which can range from 1 to 2^30."
>
> The minimum value is 1, according to the spec. The spec quote
> was already added into the code by 028f6d8317f00.
>
> Fixes crashing tests under:
>
> dEQP-VK.robustness.buffer_access.*
>
> Signed-off-by: Samuel Iglesias Gonsálvez <[email protected]>
> Cc: [email protected]
> ---
>  src/intel/isl/isl_surface_state.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/src/intel/isl/isl_surface_state.c
> b/src/intel/isl/isl_surface_state.c
> index 29ec289a5d..853bb11846 100644
> --- a/src/intel/isl/isl_surface_state.c
> +++ b/src/intel/isl/isl_surface_state.c
> @@ -671,7 +671,7 @@ isl_genX(buffer_fill_state_s)(void *state,
>         */
>        if (info->format == ISL_FORMAT_RAW) {
>           assert(num_elements <= (1ull << 30));
> -         assert((num_elements & 3) == 0);
> +         assert(num_elements > 0);
>        } else {
>           assert(num_elements <= (1ull << 27));
>        }
> --
> 2.11.0
>
>
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