drm/i915/uc: Sanitize uC options early

We are sanitizing uC related modparams together with other driver
modparams in intel_sanitize_options called from i915_driver_init_hw,
but this is too late for us as we will want to use USES_GUC/USES_HUC
macros at earlier stage. Since our sanitizing does not require any
MMIO access, we can do it in intel_uc_init_early right after we resolve
firmware names.

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20180312130308.22952-2-michal.wajdeczko@intel.com

drivers/gpu/drm/i915/i915_drv.c

@@ -1074,8 +1074,6 @@ static void intel_sanitize_options(struct drm_i915_private *dev_priv)
 					    i915_modparams.enable_ppgtt);
 	DRM_DEBUG_DRIVER("ppgtt mode: %i\n", i915_modparams.enable_ppgtt);
 
-	intel_uc_sanitize_options(dev_priv);
-
 	intel_gvt_sanitize_options(dev_priv);
 }
 

drivers/gpu/drm/i915/intel_uc.c

@@ -83,7 +83,7 @@ static int __get_default_guc_log_level(struct drm_i915_private *dev_priv)
 }
 
 /**
- * intel_uc_sanitize_options - sanitize uC related modparam options
+ * sanitize_options_early - sanitize uC related modparam options
  * @dev_priv: device private
  *
  * In case of "enable_guc" option this function will attempt to modify
@@ -99,7 +99,7 @@ static int __get_default_guc_log_level(struct drm_i915_private *dev_priv)
  * unless GuC is enabled on given platform and the driver is compiled with
  * debug config when this modparam will default to "enable(1..4)".
  */
-void intel_uc_sanitize_options(struct drm_i915_private *dev_priv)
+static void sanitize_options_early(struct drm_i915_private *dev_priv)
 {
 	struct intel_uc_fw *guc_fw = &dev_priv->guc.fw;
 	struct intel_uc_fw *huc_fw = &dev_priv->huc.fw;
@@ -163,6 +163,8 @@ void intel_uc_init_early(struct drm_i915_private *dev_priv)
 {
 	intel_guc_init_early(&dev_priv->guc);
 	intel_huc_init_early(&dev_priv->huc);
+
+	sanitize_options_early(dev_priv);
 }
 
 void intel_uc_init_fw(struct drm_i915_private *dev_priv)

drivers/gpu/drm/i915/intel_uc.h

@@ -28,7 +28,6 @@
 #include "intel_huc.h"
 #include "i915_params.h"
 
-void intel_uc_sanitize_options(struct drm_i915_private *dev_priv);
 void intel_uc_init_early(struct drm_i915_private *dev_priv);
 void intel_uc_init_mmio(struct drm_i915_private *dev_priv);
 int intel_uc_register(struct drm_i915_private *dev_priv);