[Mesa-dev] [PATCH] ac/surface: handle S8 on gfx9

[Marek Olšák]

Reviewed-by: Marek Olšák <marek.olsak at amd.com>

Marek

On Mon, Sep 18, 2017 at 5:21 AM, Dave Airlie <airlied at gmail.com> wrote:
> From: Dave Airlie <airlied at redhat.com>
>
> If we don't have a depth piece, we don't get a correct
> swizzle mode and we hit an assert in addrlib.
>
> In case of no depth get the preferrred swizzle mode for
> stencil alone.
>
> Signed-off-by: Dave Airlie <airlied at redhat.com>
> ---
>  src/amd/common/ac_surface.c | 9 +++++++--
>  1 file changed, 7 insertions(+), 2 deletions(-)
>
> diff --git a/src/amd/common/ac_surface.c b/src/amd/common/ac_surface.c
> index 88cc8a1..850d707 100644
> --- a/src/amd/common/ac_surface.c
> +++ b/src/amd/common/ac_surface.c
> @@ -1138,9 +1138,14 @@ static int gfx9_compute_surface(ADDR_HANDLE addrlib,
>
>         /* Calculate texture layout information for stencil. */
>         if (surf->flags & RADEON_SURF_SBUFFER) {
> -               AddrSurfInfoIn.bpp = 8;
> -               AddrSurfInfoIn.flags.depth = 0;
>                 AddrSurfInfoIn.flags.stencil = 1;
> +               AddrSurfInfoIn.bpp = 8;
> +
> +               if (!AddrSurfInfoIn.flags.depth)
> +                       r = gfx9_get_preferred_swizzle_mode(addrlib, &AddrSurfInfoIn, false,
> +                                                           &AddrSurfInfoIn.swizzleMode);
> +               else
> +                       AddrSurfInfoIn.flags.depth = 0;
>
>                 r = gfx9_compute_miptree(addrlib, surf, compressed, &AddrSurfInfoIn);
>                 if (r)
> --
> 2.9.3
>
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