drm/i915/gem: Manually dump the debug trace on GEM_BUG_ON

Since igt now defaults to not enabling ftrace-on-oops, we need to
manually invoke GEM_TRACE_DUMP() to see the debug log prior to a
GEM_BUG_ON panicking.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191119100929.2628356-1-chris@chris-wilson.co.uk

diff --git a/drivers/gpu/drm/i915/i915_gem.h b/drivers/gpu/drm/i915/i915_gem.h
index 36a8c76..78a99d7 100644 (file)
--- a/drivers/gpu/drm/i915/i915_gem.h
+++ b/drivers/gpu/drm/i915/i915_gem.h
@@ -30,6 +30,8 @@
 
 #include <drm/drm_drv.h>
 
+#include "i915_utils.h"
+
 struct drm_i915_private;
 
 #ifdef CONFIG_DRM_I915_DEBUG_GEM
@@ -39,6 +41,7 @@ struct drm_i915_private;
 #define GEM_BUG_ON(condition) do { if (unlikely((condition))) {        \
                GEM_TRACE_ERR("%s:%d GEM_BUG_ON(%s)\n", \
                              __func__, __LINE__, __stringify(condition)); \
+               GEM_TRACE_DUMP(); \
                BUG(); \
                } \
        } while(0)