[Intel-gfx] [PATCH 3/4] drm/i915: do not set MOCS control values on dgfx

[Lucas De Marchi]

On dgfx there's no LLC and eDRAM control table. Since now this
also means the device has global MOCS, just return early on the
initialization function.

L3 settings still apply and still need to be tweaked.

Bspec: 45101

Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio at intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi at intel.com>
---
 drivers/gpu/drm/i915/gt/intel_mocs.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/i915/gt/intel_mocs.c b/drivers/gpu/drm/i915/gt/intel_mocs.c
index 932833e5b712..9e19637e0225 100644
--- a/drivers/gpu/drm/i915/gt/intel_mocs.c
+++ b/drivers/gpu/drm/i915/gt/intel_mocs.c
@@ -462,6 +462,12 @@ static void intel_mocs_init_global(struct intel_gt *gt)
 	struct drm_i915_mocs_table table;
 	unsigned int index;
 
+	/*
+	 * LLC and eDRAM control values are not only applicable to dgfx
+	 */
+	if (IS_DGFX(gt->i915))
+		return;
+
 	GEM_BUG_ON(!HAS_GLOBAL_MOCS_REGISTERS(gt->i915));
 
 	if (!get_mocs_settings(gt->i915, &table))
-- 
2.23.0