[Intel-gfx] [PATCH v3 8/8] HAX enable GuC/HuC load

[Michal Wajdeczko]

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.wajdec...@intel.com>
---
 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 792ce26..9725c5a 100644
--- a/drivers/gpu/drm/i915/i915_params.h
+++ b/drivers/gpu/drm/i915/i915_params.h
@@ -45,7 +45,7 @@
        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 49bccc9..22b0afe 100644
--- a/drivers/gpu/drm/i915/intel_uc.c
+++ b/drivers/gpu/drm/i915/intel_uc.c
@@ -60,6 +60,8 @@ static int __get_platform_enable_guc(struct drm_i915_private 
*dev_priv)
                enable_guc |= ENABLE_GUC_LOAD_HUC;
 
        /* Any platform specific fine-tuning can be done here */
+       if (IS_GEMINILAKE(dev_priv))
+               enable_guc = 0; /* no firmware on CI machines */
 
        return enable_guc;
 }
-- 
2.7.4

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