[Intel-xe] [PATCH v7 1/5] drm/xe/pat: trim the xelp PAT table

Matthew Auld matthew.auld at intel.com
Thu Oct 5 15:46:55 UTC 2023


We don't seem to use the 4-7 pat indexes, even though they are defined
by the HW. In the next 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 at intel.com>
Signed-off-by: Matthew Auld <matthew.auld at intel.com>
Cc: Pallavi Mishra <pallavi.mishra at intel.com>
Cc: Lucas De Marchi <lucas.demarchi at intel.com>
Reviewed-by: Matt Roper <matthew.d.roper at intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi at intel.com>
Reviewed-by: José Roberto de Souza <jose.souza at intel.com>
---
 drivers/gpu/drm/xe/xe_pat.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/gpu/drm/xe/xe_pat.c b/drivers/gpu/drm/xe/xe_pat.c
index 869aee64641f..36b79d675e54 100644
--- a/drivers/gpu/drm/xe/xe_pat.c
+++ b/drivers/gpu/drm/xe/xe_pat.c
@@ -42,10 +42,6 @@ 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[] = {
-- 
2.41.0



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