From: Matthew Auld <matthew.auld@intel.com>
Date: Fri, 6 Oct 2023 08:46:15 +0000 (+0100)
Subject: drm/xe/pat: trim the xelp PAT table
X-Git-Tag: v6.8-rc1~111^2~7^2~302
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=406be3cc186eec67367b87a2af91cb598ff8e239;p=thirdparty%2Fkernel%2Flinux.git

drm/xe/pat: trim the xelp PAT table

We don't seem to use the 4-7 pat indexes, even though they are defined
by the HW. In a future patch userspace will be able to directly set the
pat_index as part of vm_bind and we don't want to allow setting 4-7.
Simplest is to just ignore them here.

Suggested-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Pallavi Mishra <pallavi.mishra@intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
---

diff --git a/drivers/gpu/drm/xe/xe_pat.c b/drivers/gpu/drm/xe/xe_pat.c
index 31565ccbb0ec1..7c1078707aa0e 100644
--- a/drivers/gpu/drm/xe/xe_pat.c
+++ b/drivers/gpu/drm/xe/xe_pat.c
@@ -56,10 +56,6 @@ static const u32 xelp_pat_table[] = {
 	[1] = XELP_PAT_WC,
 	[2] = XELP_PAT_WT,
 	[3] = XELP_PAT_UC,
-	[4] = XELP_PAT_WB,
-	[5] = XELP_PAT_WB,
-	[6] = XELP_PAT_WB,
-	[7] = XELP_PAT_WB,
 };
 
 static const u32 xehpc_pat_table[] = {