[PATCH v2 7/7] HAX enable GuC/HuC load

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Also revert ("drm/i915/guc: Assert that we switch between
known ggtt->invalidate functions")

v2: don't enable GuC on GLK

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@xxxxxxxxx>
---
 drivers/gpu/drm/i915/i915_gem_gtt.c | 8 ++------
 drivers/gpu/drm/i915/i915_params.h  | 2 +-
 drivers/gpu/drm/i915/intel_uc.c     | 2 ++
 3 files changed, 5 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 209bb11..a5e75a3 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -3590,17 +3590,13 @@ int i915_ggtt_enable_hw(struct drm_i915_private *dev_priv)
 
 void i915_ggtt_enable_guc(struct drm_i915_private *i915)
 {
-	GEM_BUG_ON(i915->ggtt.invalidate != gen6_ggtt_invalidate);
-
 	i915->ggtt.invalidate = guc_ggtt_invalidate;
 }
 
 void i915_ggtt_disable_guc(struct drm_i915_private *i915)
 {
-	/* We should only be called after i915_ggtt_enable_guc() */
-	GEM_BUG_ON(i915->ggtt.invalidate != guc_ggtt_invalidate);
-
-	i915->ggtt.invalidate = gen6_ggtt_invalidate;
+	if (i915->ggtt.invalidate == guc_ggtt_invalidate)
+		i915->ggtt.invalidate = gen6_ggtt_invalidate;
 }
 
 void i915_gem_restore_gtt_mappings(struct drm_i915_private *dev_priv)
diff --git a/drivers/gpu/drm/i915/i915_params.h b/drivers/gpu/drm/i915/i915_params.h
index 10e2f74..fd5e598 100644
--- a/drivers/gpu/drm/i915/i915_params.h
+++ b/drivers/gpu/drm/i915/i915_params.h
@@ -42,7 +42,7 @@
 	param(int, disable_power_well, -1) \
 	param(int, enable_ips, 1) \
 	param(int, invert_brightness, 0) \
-	param(int, enable_guc, 0) \
+	param(int, enable_guc, -1) \
 	param(int, guc_log_level, -1) \
 	param(char *, guc_firmware_path, NULL) \
 	param(char *, huc_firmware_path, NULL) \
diff --git a/drivers/gpu/drm/i915/intel_uc.c b/drivers/gpu/drm/i915/intel_uc.c
index 6c30a4d..76d4658 100644
--- a/drivers/gpu/drm/i915/intel_uc.c
+++ b/drivers/gpu/drm/i915/intel_uc.c
@@ -56,6 +56,8 @@ static int __get_default_enable_guc(struct drm_i915_private *dev_priv)
 			 (intel_uc_fw_is_selected(huc_fw) ? 2 : 0);
 
 	/* Any platform specific fine-tuning can be done here */
+	if (IS_GEMINILAKE(dev_priv))
+		enable_guc = 0; /* no firmware on CI machines */
 
 	/* Make sure that our "platform default" is well-defined */
 	GEM_BUG_ON(enable_guc < 0);
-- 
2.7.4

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