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 31565ccbb0ec10bcc93514ab50eb6c80f6f42efa..7c1078707aa0ec2507191d4af3afa5a4d866aaee 100644 (file)
--- 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[] = {