From: Michal Wajdeczko <michal.wajdeczko@intel.com>
Date: Fri, 23 Mar 2018 12:34:50 +0000
Subject: drm/i915/uc: Fetch uC firmware in init_early
Git-commit: 8c650aefb82d559aa0e1b7c0c36346b906481106
Patch-mainline: v4.18-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

We were fetching uC firmwares in separate uc_init_fw step, while
there is no reason why we can't fetch them during init_early.
This will also simplify upcoming patches, as size of the firmware
may be used for register initialization.

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Michal Winiarski <michal.winiarski@intel.com>
Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
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/20180323123451.59244-2-michal.wajdeczko@intel.com

Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/i915/i915_drv.c     |    8 +------
 drivers/gpu/drm/i915/intel_guc_fw.c |    5 +---
 drivers/gpu/drm/i915/intel_huc_fw.c |    5 +---
 drivers/gpu/drm/i915/intel_uc.c     |   37 +++++++++++++++++-------------------
 drivers/gpu/drm/i915/intel_uc.h     |    3 --
 5 files changed, 25 insertions(+), 33 deletions(-)

--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -695,11 +695,9 @@ static int i915_load_modeset_init(struct
 	if (ret)
 		goto cleanup_irq;
 
-	intel_uc_init_fw(dev_priv);
-
 	ret = i915_gem_init(dev_priv);
 	if (ret)
-		goto cleanup_uc;
+		goto cleanup_irq;
 
 	intel_setup_overlay(dev_priv);
 
@@ -719,8 +717,6 @@ cleanup_gem:
 	if (i915_gem_suspend(dev_priv))
 		DRM_ERROR("failed to idle hardware; continuing to unload!\n");
 	i915_gem_fini(dev_priv);
-cleanup_uc:
-	intel_uc_fini_fw(dev_priv);
 cleanup_irq:
 	drm_irq_uninstall(dev);
 	intel_teardown_gmbus(dev_priv);
@@ -965,6 +961,7 @@ err_engines:
 static void i915_driver_cleanup_early(struct drm_i915_private *dev_priv)
 {
 	intel_irq_fini(dev_priv);
+	intel_uc_cleanup_early(dev_priv);
 	i915_gem_cleanup_early(dev_priv);
 	i915_workqueues_cleanup(dev_priv);
 	i915_engines_cleanup(dev_priv);
@@ -1463,7 +1460,6 @@ void i915_driver_unload(struct drm_devic
 	i915_reset_error_state(dev_priv);
 
 	i915_gem_fini(dev_priv);
-	intel_uc_fini_fw(dev_priv);
 	intel_fbc_cleanup_cfb(dev_priv);
 
 	intel_power_domains_fini(dev_priv);
--- a/drivers/gpu/drm/i915/intel_guc_fw.c
+++ b/drivers/gpu/drm/i915/intel_guc_fw.c
@@ -275,9 +275,8 @@ static int guc_fw_xfer(struct intel_uc_f
  * Called from intel_uc_init_hw() during driver load, resume from sleep and
  * after a GPU reset.
  *
- * The firmware image should have already been fetched into memory by the
- * earlier call to intel_uc_init_fw(), so here we need to only check that
- * fetch succeeded, and then transfer the image to the h/w.
+ * The firmware image should have already been fetched into memory, so only
+ * check that fetch succeeded, and then transfer the image to the h/w.
  *
  * Return:	non-zero code on error
  */
--- a/drivers/gpu/drm/i915/intel_huc_fw.c
+++ b/drivers/gpu/drm/i915/intel_huc_fw.c
@@ -155,9 +155,8 @@ static int huc_fw_xfer(struct intel_uc_f
  * Called from intel_uc_init_hw() during driver load, resume from sleep and
  * after a GPU reset. Note that HuC must be loaded before GuC.
  *
- * The firmware image should have already been fetched into memory by the
- * earlier call to intel_uc_init_fw(), so here we need to only check that
- * fetch succeeded, and then transfer the image to the h/w.
+ * The firmware image should have already been fetched into memory, so only
+ * check that fetch succeeded, and then transfer the image to the h/w.
  *
  * Return:	non-zero code on error
  */
--- a/drivers/gpu/drm/i915/intel_uc.c
+++ b/drivers/gpu/drm/i915/intel_uc.c
@@ -162,36 +162,35 @@ static void sanitize_options_early(struc
 	GEM_BUG_ON(i915_modparams.guc_log_level < 0);
 }
 
-void intel_uc_init_early(struct drm_i915_private *dev_priv)
+void intel_uc_init_early(struct drm_i915_private *i915)
 {
-	intel_guc_init_early(&dev_priv->guc);
-	intel_huc_init_early(&dev_priv->huc);
+	struct intel_guc *guc = &i915->guc;
+	struct intel_huc *huc = &i915->huc;
 
-	sanitize_options_early(dev_priv);
-}
+	intel_guc_init_early(guc);
+	intel_huc_init_early(huc);
 
-void intel_uc_init_fw(struct drm_i915_private *dev_priv)
-{
-	if (!USES_GUC(dev_priv))
-		return;
+	sanitize_options_early(i915);
 
-	if (USES_HUC(dev_priv))
-		intel_uc_fw_fetch(dev_priv, &dev_priv->huc.fw);
+	if (USES_GUC(i915))
+		intel_uc_fw_fetch(i915, &guc->fw);
 
-	intel_uc_fw_fetch(dev_priv, &dev_priv->guc.fw);
+	if (USES_HUC(i915))
+		intel_uc_fw_fetch(i915, &huc->fw);
 }
 
-void intel_uc_fini_fw(struct drm_i915_private *dev_priv)
+void intel_uc_cleanup_early(struct drm_i915_private *i915)
 {
-	if (!USES_GUC(dev_priv))
-		return;
+	struct intel_guc *guc = &i915->guc;
+	struct intel_huc *huc = &i915->huc;
 
-	intel_uc_fw_fini(&dev_priv->guc.fw);
+	if (USES_HUC(i915))
+		intel_uc_fw_fini(&huc->fw);
 
-	if (USES_HUC(dev_priv))
-		intel_uc_fw_fini(&dev_priv->huc.fw);
+	if (USES_GUC(i915))
+		intel_uc_fw_fini(&guc->fw);
 
-	guc_free_load_err_log(&dev_priv->guc);
+	guc_free_load_err_log(guc);
 }
 
 /**
--- a/drivers/gpu/drm/i915/intel_uc.h
+++ b/drivers/gpu/drm/i915/intel_uc.h
@@ -29,9 +29,8 @@
 #include "i915_params.h"
 
 void intel_uc_init_early(struct drm_i915_private *dev_priv);
+void intel_uc_cleanup_early(struct drm_i915_private *dev_priv);
 void intel_uc_init_mmio(struct drm_i915_private *dev_priv);
-void intel_uc_init_fw(struct drm_i915_private *dev_priv);
-void intel_uc_fini_fw(struct drm_i915_private *dev_priv);
 int intel_uc_init_misc(struct drm_i915_private *dev_priv);
 void intel_uc_fini_misc(struct drm_i915_private *dev_priv);
 void intel_uc_sanitize(struct drm_i915_private *dev_priv);