[Intel-gfx] [PATCH] drm/i915: Warn about missing context state workarounds only once

[Michel Thierry]

Otherwise, new platforms without workarounds will hit this warning for
every new context created.

Cc: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
Signed-off-by: Michel Thierry <michel.thierry at intel.com>
---
 drivers/gpu/drm/i915/intel_lrc.c        | 2 +-
 drivers/gpu/drm/i915/intel_ringbuffer.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
index 4d41f5a..4111cdd 100644
--- a/drivers/gpu/drm/i915/intel_lrc.c
+++ b/drivers/gpu/drm/i915/intel_lrc.c
@@ -1164,7 +1164,7 @@ static int intel_logical_ring_workarounds_emit(struct intel_engine_cs *ring,
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct i915_workarounds *w = &dev_priv->workarounds;
 
-	if (WARN_ON(w->count == 0))
+	if (WARN_ON_ONCE(w->count == 0))
 		return 0;
 
 	ring->gpu_caches_dirty = true;
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 1d01b51..104edf6 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -669,7 +669,7 @@ static int intel_ring_workarounds_emit(struct intel_engine_cs *ring,
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct i915_workarounds *w = &dev_priv->workarounds;
 
-	if (WARN_ON(w->count == 0))
+	if (WARN_ON_ONCE(w->count == 0))
 		return 0;
 
 	ring->gpu_caches_dirty = true;
-- 
2.1.1