From e6e2ac07118b15f25683fcbd59ea1be73ec9465d Mon Sep 17 00:00:00 2001
From: Lucas De Marchi <lucas.demarchi@intel.com>
Date: Thu, 24 Oct 2019 12:51:21 -0700
Subject: drm/i915: do not set MOCS control values on dgfx
Git-commit: e6e2ac07118b15f25683fcbd59ea1be73ec9465d
Patch-mainline: v5.5-rc1
References: bsc#1152489
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@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191024195122.22877-3-lucas.demarchi@intel.com
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
---
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..6e881c735b20 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 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))
--
2.28.0