[2/3] drm/i915/uc: Fetch uC firmware in init_early

Commit Message

Michal Wajdeczko March 22, 2018, 8:36 p.m. UTC

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 <[e-mail]>
Cc: Michal Winiarski <[e-mail]>
Cc: Sagar Arun Kamble <[e-mail]>
Cc: Chris Wilson <[e-mail]>
Cc: Joonas Lahtinen <[e-mail]>
---
 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(-)

Comments

Chris Wilson March 22, 2018, 8:50 p.m. UTC | #1

Quoting Michal Wajdeczko (2018-03-22 20:36:58)
> 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 <[e-mail]>
> Cc: Michal Winiarski <[e-mail]>
> Cc: Sagar Arun Kamble <[e-mail]>
> Cc: Chris Wilson <[e-mail]>
> Cc: Joonas Lahtinen <[e-mail]>

Looked ok, didn't spot you sneaking in any major changes (who would do
that???)

Reviewed-by: Chris Wilson <[e-mail]>
-Chris

Patch

diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index f60bc04..3d02a0a 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -692,11 +692,9 @@  static int i915_load_modeset_init(struct drm_device *dev)
 	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);
 
@@ -716,8 +714,6 @@  static int i915_load_modeset_init(struct drm_device *dev)
 	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);
@@ -962,6 +958,7 @@  static int i915_driver_init_early(struct drm_i915_private *dev_priv,
 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_load_cleanup(dev_priv);
 	i915_workqueues_cleanup(dev_priv);
 	i915_engines_cleanup(dev_priv);
@@ -1457,7 +1454,6 @@  void i915_driver_unload(struct drm_device *dev)
 	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);
diff --git a/drivers/gpu/drm/i915/intel_guc_fw.c b/drivers/gpu/drm/i915/intel_guc_fw.c
index 978668c..a9e6fcc 100644
--- 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_fw *guc_fw, struct i915_vma *vma)
  * 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
  */
diff --git a/drivers/gpu/drm/i915/intel_huc_fw.c b/drivers/gpu/drm/i915/intel_huc_fw.c
index bb0f8b7..f93d238 100644
--- 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_fw *huc_fw, struct i915_vma *vma)
  * 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
  */
diff --git a/drivers/gpu/drm/i915/intel_uc.c b/drivers/gpu/drm/i915/intel_uc.c
index 34f8a2c..4aad844 100644
--- 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(struct drm_i915_private *dev_priv)
 	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);
 }
 
 /**
diff --git a/drivers/gpu/drm/i915/intel_uc.h b/drivers/gpu/drm/i915/intel_uc.h
index 937e611..25d73ad 100644
--- 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);