From b91a110d5ce946abe0ee84625498676ac4bcf7aa Mon Sep 17 00:00:00 2001 From: Ben Widawsky Date: Fri, 22 May 2015 18:13:24 -0700 Subject: [PATCH] i965/gen9: Only allow Y-Tiled MCS buffers For GEN9, much of the logic to use X-Tiled buffers has been stripped out. It is still supported in some places, but it's never desirable. Unfortunately we don't yet have the ability to have Y-Tiled scanout (see: http://patchwork.freedesktop.org/patch/46984/), NOTE: This patch shouldn't actually do anything since SKL doesn't yet use fast clears (they are disabled because they are causing regressions). THerefore, the only case we can get to this function on SKL is by way of intel_update_winsys_renderbuffer_miptree. v2: Update commit message to be more clear that the NOTE is for SKL only. Signed-off-by: Ben Widawsky Reviewed-by: Chad Versace Reviewed-by: Jordan Justen Reviewed-by: Anuj Phogat --- src/mesa/drivers/dri/i965/intel_mipmap_tree.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c index fb4e5b8b775..cbb91dcd565 100644 --- a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c +++ b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c @@ -193,6 +193,8 @@ intel_is_non_msrt_mcs_buffer_supported(struct brw_context *brw, return false; } + if (brw->gen >= 9 && mt->tiling != I915_TILING_Y) + return false; if (mt->tiling != I915_TILING_X && mt->tiling != I915_TILING_Y) return false;