[PATCH v11 06/15] drm/i915/guc: Make GuC related disable/destroy functions not depend on i915.enable_guc_submission

[Sagar Arun Kamble]

During GuC load/enable, state is setup by driver that can be looked at
while disabling. So remove the check for i915.enable_guc_submission
parameter in those functions.

Suggested-by: Chris Wilson <chris at chris-wilson.co.uk>
Signed-off-by: Sagar Arun Kamble <sagar.a.kamble at intel.com>
Cc: Michal Wajdeczko <michal.wajdeczko at intel.com>
Cc: Michał Winiarski <michal.winiarski at intel.com>
---
 drivers/gpu/drm/i915/i915_guc_submission.c | 13 ++++++++++---
 drivers/gpu/drm/i915/i915_irq.c            |  6 ++++++
 drivers/gpu/drm/i915/intel_guc_log.c       |  6 ++----
 drivers/gpu/drm/i915/intel_uc.c            | 12 ++++--------
 4 files changed, 22 insertions(+), 15 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_guc_submission.c b/drivers/gpu/drm/i915/i915_guc_submission.c
index 04f1281..a2f67ca 100644
--- a/drivers/gpu/drm/i915/i915_guc_submission.c
+++ b/drivers/gpu/drm/i915/i915_guc_submission.c
@@ -1002,7 +1002,8 @@ static int guc_ads_create(struct intel_guc *guc)
 
 static void guc_ads_destroy(struct intel_guc *guc)
 {
-	i915_vma_unpin_and_release(&guc->ads_vma);
+	if (guc->ads_vma)
+		i915_vma_unpin_and_release(&guc->ads_vma);
 }
 
 /*
@@ -1060,11 +1061,14 @@ void i915_guc_submission_fini(struct drm_i915_private *dev_priv)
 {
 	struct intel_guc *guc = &dev_priv->guc;
 
+	WARN_ON_ONCE(!ida_is_empty(&guc->stage_ids));
 	ida_destroy(&guc->stage_ids);
 	guc_ads_destroy(guc);
 	intel_guc_log_destroy(guc);
-	i915_gem_object_unpin_map(guc->stage_desc_pool->obj);
-	i915_vma_unpin_and_release(&guc->stage_desc_pool);
+	if (guc->stage_desc_pool) {
+		i915_gem_object_unpin_map(guc->stage_desc_pool->obj);
+		i915_vma_unpin_and_release(&guc->stage_desc_pool);
+	}
 }
 
 static void guc_interrupts_capture(struct drm_i915_private *dev_priv)
@@ -1204,6 +1208,9 @@ void i915_guc_submission_disable(struct drm_i915_private *dev_priv)
 {
 	struct intel_guc *guc = &dev_priv->guc;
 
+	if (!guc->execbuf_client)
+		return;
+
 	guc_interrupts_release(dev_priv);
 
 	/* Revert back to manual ELSP submission */
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 0b756213..75406ee 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -455,6 +455,9 @@ void gen9_reset_guc_interrupts(struct drm_i915_private *dev_priv)
 
 void gen9_enable_guc_interrupts(struct drm_i915_private *dev_priv)
 {
+	if (READ_ONCE(dev_priv->guc.interrupts_enabled))
+		return;
+
 	spin_lock_irq(&dev_priv->irq_lock);
 	if (!dev_priv->guc.interrupts_enabled) {
 		WARN_ON_ONCE(I915_READ(gen6_pm_iir(dev_priv)) &
@@ -467,6 +470,9 @@ void gen9_enable_guc_interrupts(struct drm_i915_private *dev_priv)
 
 void gen9_disable_guc_interrupts(struct drm_i915_private *dev_priv)
 {
+	if (!READ_ONCE(dev_priv->guc.interrupts_enabled))
+		return;
+
 	spin_lock_irq(&dev_priv->irq_lock);
 	dev_priv->guc.interrupts_enabled = false;
 
diff --git a/drivers/gpu/drm/i915/intel_guc_log.c b/drivers/gpu/drm/i915/intel_guc_log.c
index 6571d96..73333b6 100644
--- a/drivers/gpu/drm/i915/intel_guc_log.c
+++ b/drivers/gpu/drm/i915/intel_guc_log.c
@@ -584,7 +584,8 @@ int intel_guc_log_create(struct intel_guc *guc)
 void intel_guc_log_destroy(struct intel_guc *guc)
 {
 	guc_log_runtime_destroy(guc);
-	i915_vma_unpin_and_release(&guc->log.vma);
+	if (guc->log.vma)
+		i915_vma_unpin_and_release(&guc->log.vma);
 }
 
 int i915_guc_log_control(struct drm_i915_private *dev_priv, u64 control_val)
@@ -653,9 +654,6 @@ void i915_guc_log_register(struct drm_i915_private *dev_priv)
 
 void i915_guc_log_unregister(struct drm_i915_private *dev_priv)
 {
-	if (!i915_modparams.enable_guc_submission)
-		return;
-
 	mutex_lock(&dev_priv->drm.struct_mutex);
 	/* GuC logging is currently the only user of Guc2Host interrupts */
 	gen9_disable_guc_interrupts(dev_priv);
diff --git a/drivers/gpu/drm/i915/intel_uc.c b/drivers/gpu/drm/i915/intel_uc.c
index ab26232..ea7c39c 100644
--- a/drivers/gpu/drm/i915/intel_uc.c
+++ b/drivers/gpu/drm/i915/intel_uc.c
@@ -445,8 +445,7 @@ int intel_uc_init_hw(struct drm_i915_private *dev_priv)
 err_log_capture:
 	guc_capture_load_err_log(guc);
 err_submission:
-	if (i915_modparams.enable_guc_submission)
-		i915_guc_submission_fini(dev_priv);
+	i915_guc_submission_fini(dev_priv);
 err_guc:
 	i915_ggtt_disable_guc(dev_priv);
 
@@ -475,15 +474,12 @@ void intel_uc_fini_hw(struct drm_i915_private *dev_priv)
 	if (!i915_modparams.enable_guc_loading)
 		return;
 
-	if (i915_modparams.enable_guc_submission)
-		i915_guc_submission_disable(dev_priv);
+	i915_guc_submission_disable(dev_priv);
 
 	guc_disable_communication(&dev_priv->guc);
 
-	if (i915_modparams.enable_guc_submission) {
-		gen9_disable_guc_interrupts(dev_priv);
-		i915_guc_submission_fini(dev_priv);
-	}
+	gen9_disable_guc_interrupts(dev_priv);
+	i915_guc_submission_fini(dev_priv);
 
 	i915_ggtt_disable_guc(dev_priv);
 }
-- 
1.9.1