[PATCH 2/4] drm/i915: Tune down debug output when context is banned

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If we have stopped rings then we know that test is running
so no need for spam. In addition, only spam when default
context gets banned.

v2: - make sure default context ban gets shown (Chris)
    - use helper for checking for default context, everywhere (Chris)

Reference: https://bugs.freedesktop.org/show_bug.cgi?id=73652
Signed-off-by: Mika Kuoppala <mika.kuoppala@xxxxxxxxx>
---
 drivers/gpu/drm/i915/i915_drv.h         |    5 +++++
 drivers/gpu/drm/i915/i915_gem.c         |    5 ++++-
 drivers/gpu/drm/i915/i915_gem_context.c |    9 ++-------
 3 files changed, 11 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 3673ba1..b34fd31 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2271,6 +2271,11 @@ static inline void i915_gem_context_unreference(struct i915_hw_context *ctx)
 		kref_put(&ctx->ref, i915_gem_context_free);
 }
 
+static inline bool i915_gem_context_is_default(const struct i915_hw_context *c)
+{
+	return c->id == DEFAULT_CONTEXT_ID;
+}
+
 int i915_gem_context_create_ioctl(struct drm_device *dev, void *data,
 				  struct drm_file *file);
 int i915_gem_context_destroy_ioctl(struct drm_device *dev, void *data,
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index e41d520..8f9ac0a 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -2319,7 +2319,10 @@ static bool i915_context_is_banned(const struct i915_hw_context *ctx)
 		return true;
 
 	if (elapsed <= DRM_I915_CTX_BAN_PERIOD) {
-		DRM_ERROR("context hanging too fast, declaring banned!\n");
+		if (dev_priv->gpu_error.stop_rings == 0 &&
+		    i915_gem_context_is_default(ctx))
+			DRM_ERROR("context hanging too fast, banning!\n");
+
 		return true;
 	}
 
diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c
index 2b0598e..985c1ed 100644
--- a/drivers/gpu/drm/i915/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/i915_gem_context.c
@@ -228,11 +228,6 @@ err_out:
 	return ERR_PTR(ret);
 }
 
-static inline bool is_default_context(struct i915_hw_context *ctx)
-{
-	return (ctx->id == DEFAULT_CONTEXT_ID);
-}
-
 /**
  * The default context needs to exist per ring that uses contexts. It stores the
  * context state of the GPU for applications that don't utilize HW contexts, as
@@ -478,7 +473,7 @@ static int context_idr_cleanup(int id, void *p, void *data)
 	struct i915_hw_context *ctx = p;
 
 	/* Ignore the default context because close will handle it */
-	if (is_default_context(ctx))
+	if (i915_gem_context_is_default(ctx))
 		return 0;
 
 	i915_gem_context_unreference(ctx);
@@ -656,7 +651,7 @@ static int do_switch(struct intel_ring_buffer *ring,
 		vma->bind_vma(vma, to->obj->cache_level, GLOBAL_BIND);
 	}
 
-	if (!to->is_initialized || is_default_context(to))
+	if (!to->is_initialized || i915_gem_context_is_default(to))
 		hw_flags |= MI_RESTORE_INHIBIT;
 
 	ret = mi_set_context(ring, to, hw_flags);
-- 
1.7.9.5

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