[Intel-gfx] [PATCH 09/10] drm/i915/uc: Separate firmware selection and preparation

[Arkadiusz Hiler]

intel_{h,g}uc_init_fw selects correct firmware and then triggers it's
preparation (fetch + initial parsing).

This change separates out select steps, so those can be called by
the sanitize_options().

Then, during the init_fw() we prepare the firmware if the firmware was
selected.

Cc: Michal Winiarski <michal.winiarski at intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen at linux.intel.com>
Signed-off-by: Arkadiusz Hiler <arkadiusz.hiler at intel.com>
---
 drivers/gpu/drm/i915/intel_guc_loader.c | 12 ++----------
 drivers/gpu/drm/i915/intel_huc.c        | 14 ++------------
 drivers/gpu/drm/i915/intel_uc.c         | 20 ++++++++++++++------
 drivers/gpu/drm/i915/intel_uc.h         |  4 ++--
 4 files changed, 20 insertions(+), 30 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_guc_loader.c b/drivers/gpu/drm/i915/intel_guc_loader.c
index 64f50bd..8ccd832 100644
--- a/drivers/gpu/drm/i915/intel_guc_loader.c
+++ b/drivers/gpu/drm/i915/intel_guc_loader.c
@@ -467,15 +467,10 @@ int intel_guc_init_hw(struct drm_i915_private *dev_priv)
 }
 
 /**
- * intel_guc_init_fw() - select and prepare firmware for loading
+ * intel_guc_select_fw() - selects GuC firmware for loading
  * @guc:	intel_guc struct
- *
- * Called early during driver load, but after GEM is initialised.
- *
- * The firmware will be transferred to the GuC's memory later,
- * when intel_guc_init_hw() is called.
  */
-void intel_guc_init_fw(struct intel_guc *guc)
+void intel_guc_select_fw(struct intel_guc *guc)
 {
 	struct drm_i915_private *dev_priv = guc_to_i915(guc);
 
@@ -498,11 +493,8 @@ void intel_guc_init_fw(struct intel_guc *guc)
 		guc->fw.minor_ver_wanted = KBL_FW_MINOR;
 	} else {
 		DRM_ERROR("No GuC firmware known for platform with GuC!\n");
-		i915.enable_guc_loading = 0;
 		return;
 	}
-
-	intel_uc_prepare_fw(dev_priv, &guc->fw);
 }
 
 /**
diff --git a/drivers/gpu/drm/i915/intel_huc.c b/drivers/gpu/drm/i915/intel_huc.c
index 757f618..d073a68 100644
--- a/drivers/gpu/drm/i915/intel_huc.c
+++ b/drivers/gpu/drm/i915/intel_huc.c
@@ -141,18 +141,10 @@ static int huc_ucode_xfer(struct drm_i915_private *dev_priv)
 }
 
 /**
- * intel_huc_init_fw() - select and prepare firmware for loading
+ * intel_huc_select_fw() - selects HuC firmware for loading
  * @huc:	intel_huc struct
- *
- * Called early during driver load, but after GEM is initialised. The loading
- * will continue only when driver explicitly specify firmware name and version.
- * All other cases are considered as INTEL_UC_FIRMWARE_NONE either because HW
- * is not capable or driver yet support it. And there will be no error message
- * for INTEL_UC_FIRMWARE_NONE cases.
- *
- * The DMA-copying to HW is done later when intel_huc_init_hw() is called.
  */
-void intel_huc_init_fw(struct intel_huc *huc)
+void intel_huc_select_fw(struct intel_huc *huc)
 {
 	struct drm_i915_private *dev_priv = huc_to_i915(huc);
 
@@ -177,8 +169,6 @@ void intel_huc_init_fw(struct intel_huc *huc)
 		DRM_ERROR("No HuC firmware known for platform with HuC!\n");
 		return;
 	}
-
-	intel_uc_prepare_fw(dev_priv, &huc->fw);
 }
 
 /**
diff --git a/drivers/gpu/drm/i915/intel_uc.c b/drivers/gpu/drm/i915/intel_uc.c
index ac9ad59..89681b37 100644
--- a/drivers/gpu/drm/i915/intel_uc.c
+++ b/drivers/gpu/drm/i915/intel_uc.c
@@ -66,6 +66,16 @@ void intel_uc_sanitize_options(struct drm_i915_private *dev_priv)
 		if (!i915.enable_guc_loading)
 			i915.enable_guc_submission = 0;
 	}
+
+	if (i915.enable_guc_loading) {
+		if (HAS_HUC_UCODE(dev_priv))
+			intel_huc_select_fw(&dev_priv->huc);
+
+		intel_guc_select_fw(&dev_priv->guc);
+
+		if (!dev_priv->guc.fw.path)
+			i915.enable_guc_loading = 0;
+	}
 }
 
 void intel_uc_init_early(struct drm_i915_private *dev_priv)
@@ -75,13 +85,11 @@ void intel_uc_init_early(struct drm_i915_private *dev_priv)
 
 void intel_uc_init_fw(struct drm_i915_private *dev_priv)
 {
-	if (!i915.enable_guc_loading)
-		return;
+	if (dev_priv->huc.fw.path)
+		intel_uc_prepare_fw(dev_priv, &dev_priv->huc.fw);
 
-	if (HAS_HUC_UCODE(dev_priv))
-		intel_huc_init_fw(&dev_priv->huc);
-
-	intel_guc_init_fw(&dev_priv->guc);
+	if (dev_priv->guc.fw.path)
+		intel_uc_prepare_fw(dev_priv, &dev_priv->guc.fw);
 }
 
 int intel_uc_init_hw(struct drm_i915_private *dev_priv)
diff --git a/drivers/gpu/drm/i915/intel_uc.h b/drivers/gpu/drm/i915/intel_uc.h
index d19c95e..5f04ea1 100644
--- a/drivers/gpu/drm/i915/intel_uc.h
+++ b/drivers/gpu/drm/i915/intel_uc.h
@@ -194,7 +194,7 @@ void intel_uc_prepare_fw(struct drm_i915_private *dev_priv,
 			 struct intel_uc_fw *uc_fw);
 
 /* intel_guc_loader.c */
-void intel_guc_init_fw(struct intel_guc *guc);
+void intel_guc_select_fw(struct intel_guc *guc);
 int intel_guc_init_hw(struct drm_i915_private *dev_priv);
 void intel_guc_fini(struct drm_i915_private *dev_priv);
 const char *intel_uc_fw_status_repr(enum intel_uc_fw_status status);
@@ -230,7 +230,7 @@ static inline u32 guc_ggtt_offset(struct i915_vma *vma)
 }
 
 /* intel_huc.c */
-void intel_huc_init_fw(struct intel_huc *huc);
+void intel_huc_select_fw(struct intel_huc *huc);
 void intel_huc_fini(struct drm_i915_private  *dev_priv);
 int intel_huc_init_hw(struct drm_i915_private *dev_priv);
 void intel_guc_auth_huc(struct drm_i915_private *dev_priv);
-- 
2.9.3