etnaviv: trigger TS derivation after slow clear

Now that we switch dynamically between fast (TS) and slow (regular)
clears on TS enabled surfaces, we must trigger reevaluation of the
current TS state also after a slow clear, as otherwise the PE might
continue to use the invalidated TS state.

Fixes: df63f188e8 ("etnaviv: fix separate depth/stencil clears")
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Christian Gmeiner <cgmeiner@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/28696>

src/gallium/drivers/etnaviv/etnaviv_rs.c

@@ -409,7 +409,7 @@ etna_blit_clear_zs_rs(struct pipe_context *pctx, struct pipe_surface *dst,
       }
 
       etna_resource_level_ts_mark_valid(surf->level);
-      ctx->dirty |= ETNA_DIRTY_TS | ETNA_DIRTY_DERIVE_TS;
+      ctx->dirty |= ETNA_DIRTY_TS;
    } else {
       /* If the level has valid TS state we need to flush it, as the regular
        * clear will not update the state and we must therefore invalidate it. */
@@ -431,6 +431,7 @@ etna_blit_clear_zs_rs(struct pipe_context *pctx, struct pipe_surface *dst,
    surf->level->clear_value = new_clear_value;
    resource_written(ctx, surf->base.texture);
    etna_resource_level_mark_changed(surf->level);
+   ctx->dirty |= ETNA_DIRTY_DERIVE_TS;
 }
 
 static void