From 7ffd0f409e5cfe99da92f0281a6fb2e7fbcbfb2e Mon Sep 17 00:00:00 2001
From: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Date: Tue, 23 May 2023 09:57:20 +0300
Subject: [PATCH] iris: add a comment about aux-tt alignment requirements
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Tested-by: José Roberto de Souza <jose.souza@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23198>
---
 src/gallium/drivers/iris/iris_resource.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/gallium/drivers/iris/iris_resource.c b/src/gallium/drivers/iris/iris_resource.c
index 8be3695e404..182944d316d 100644
--- a/src/gallium/drivers/iris/iris_resource.c
+++ b/src/gallium/drivers/iris/iris_resource.c
@@ -1253,6 +1253,9 @@ iris_resource_create_for_image(struct pipe_screen *pscreen,
                 iris_get_aux_clear_color_state_size(screen, res);
    }
 
+   /* The ISL alignment already includes AUX-TT requirements, so no additional
+    * attention required here :)
+    */
    uint32_t alignment = MAX2(4096, res->surf.alignment_B);
    res->bo =
       iris_bo_alloc(screen->bufmgr, name, bo_size, alignment, memzone, flags);