[PATCH 03/12] drm/xe/cri: Setup MOCS table

[Lucas De Marchi <lucas.demarchi@intel.com>]

From: Matt Roper <matthew.d.roper@intel.com>

CRI has a new MOCS table, but uses the same general ops as other Xe2/Xe3
platforms.

Bspec: 71582
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
---
 drivers/gpu/drm/xe/xe_mocs.c | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/drivers/gpu/drm/xe/xe_mocs.c b/drivers/gpu/drm/xe/xe_mocs.c
index e8ec4114302e5..6613d3b48a844 100644
--- a/drivers/gpu/drm/xe/xe_mocs.c
+++ b/drivers/gpu/drm/xe/xe_mocs.c
@@ -568,6 +568,23 @@ static const struct xe_mocs_ops xe2_mocs_ops = {
 	.dump = xe2_mocs_dump,
 };
 
+/*
+ * Note that the "L3" and "L4" register fields actually control the L2 and L3
+ * caches respectively on this platform.
+ */
+static const struct xe_mocs_entry xe3p_xpc_mocs_table[] = {
+	/* Defer to PAT */
+	MOCS_ENTRY(0, XE2_L3_0_WB | L4_3_UC, 0),
+	/* UC */
+	MOCS_ENTRY(1, IG_PAT | XE2_L3_3_UC | L4_3_UC, 0),
+	/* L2 */
+	MOCS_ENTRY(2, IG_PAT | XE2_L3_0_WB | L4_3_UC, 0),
+	/* L3 */
+	MOCS_ENTRY(3, IG_PAT | XE2_L3_3_UC | L4_0_WB, 0),
+	/* L2 + L3 */
+	MOCS_ENTRY(4, IG_PAT | XE2_L3_0_WB | L4_0_WB, 0),
+};
+
 static unsigned int get_mocs_settings(struct xe_device *xe,
 				      struct xe_mocs_info *info)
 {
@@ -576,6 +593,15 @@ static unsigned int get_mocs_settings(struct xe_device *xe,
 	memset(info, 0, sizeof(struct xe_mocs_info));
 
 	switch (xe->info.platform) {
+	case XE_CRESCENTISLAND:
+		info->ops = &xe2_mocs_ops;
+		info->table_size = ARRAY_SIZE(xe3p_xpc_mocs_table);
+		info->table = xe3p_xpc_mocs_table;
+		info->num_mocs_regs = XE2_NUM_MOCS_ENTRIES;
+		info->uc_index = 1;
+		info->wb_index = 4;
+		info->unused_entries_index = 4;
+		break;
 	case XE_NOVALAKE_S:
 	case XE_PANTHERLAKE:
 	case XE_LUNARLAKE:

-- 
2.51.0