[Intel-gfx] [PATCH] drm/i915/trace: Hide backend specific fields behind Kconfig

[Matthew Brost]

Hide the guc_id and tail fields, for request trace points, behind
CONFIG_DRM_I915_LOW_LEVEL_TRACEPOINTS Kconfig option. Trace points
are ABI (maybe?) so don't change them without kernel developers Kconfig
options.

Signed-off-by: Matthew Brost <matthew.br...@intel.com>
---
 drivers/gpu/drm/i915/i915_trace.h | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_trace.h 
b/drivers/gpu/drm/i915/i915_trace.h
index 9795f456cccf..4f5238d02b51 100644
--- a/drivers/gpu/drm/i915/i915_trace.h
+++ b/drivers/gpu/drm/i915/i915_trace.h
@@ -787,6 +787,7 @@ TRACE_EVENT(i915_request_queue,
                      __entry->ctx, __entry->seqno, __entry->flags)
 );
 
+#if defined(CONFIG_DRM_I915_LOW_LEVEL_TRACEPOINTS)
 DECLARE_EVENT_CLASS(i915_request,
            TP_PROTO(struct i915_request *rq),
            TP_ARGS(rq),
@@ -816,6 +817,32 @@ DECLARE_EVENT_CLASS(i915_request,
                      __entry->guc_id, __entry->ctx, __entry->seqno,
                      __entry->tail)
 );
+#else
+DECLARE_EVENT_CLASS(i915_request,
+           TP_PROTO(struct i915_request *rq),
+           TP_ARGS(rq),
+
+           TP_STRUCT__entry(
+                            __field(u32, dev)
+                            __field(u64, ctx)
+                            __field(u16, class)
+                            __field(u16, instance)
+                            __field(u32, seqno)
+                            ),
+
+           TP_fast_assign(
+                          __entry->dev = rq->engine->i915->drm.primary->index;
+                          __entry->class = rq->engine->uabi_class;
+                          __entry->instance = rq->engine->uabi_instance;
+                          __entry->ctx = rq->fence.context;
+                          __entry->seqno = rq->fence.seqno;
+                          ),
+
+           TP_printk("dev=%u, engine=%u:%u, ctx=%llu, seqno=%u",
+                     __entry->dev, __entry->class, __entry->instance,
+                     __entry->ctx, __entry->seqno)
+);
+#endif
 
 DEFINE_EVENT(i915_request, i915_request_add,
             TP_PROTO(struct i915_request *rq),
-- 
2.32.0