From 5262475242b8156d015e3d7db7ce860e202530be Mon Sep 17 00:00:00 2001
From: Kenneth Graunke <kenneth@whitecape.org>
Date: Sun, 28 Nov 2021 01:06:16 -0800
Subject: [PATCH] intel/dev: Add a has_flat_ccs flag

This should only be set on XeHP.  It implies that CCS works via based on
the virtual addresses involved and a flat memory carve-out, rather than
treating CCS like a surface, or using auxiliary maps.

Reviewed-by: Caio Oliveira <caio.oliveira@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14687>
---
 src/intel/dev/intel_device_info.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/src/intel/dev/intel_device_info.h b/src/intel/dev/intel_device_info.h
index c3473cf4125..da897981a12 100644
--- a/src/intel/dev/intel_device_info.h
+++ b/src/intel/dev/intel_device_info.h
@@ -126,6 +126,12 @@ struct intel_device_info
    bool has_surface_tile_offset;
    bool supports_simd16_3src;
    bool disable_ccs_repack;
+
+   /**
+    * True if CCS uses a flat virtual address translation to a memory
+    * carve-out, rather than aux map translations, or additional surfaces.
+    */
+   bool has_flat_ccs;
    bool has_aux_map;
    bool has_tiling_uapi;
    bool has_ray_tracing;