drm/i915: Pass the plane state explicitly to tracepoints

Using the plane->state pointer in the tracepoints is incorrect
as technically a different state could already have been swapped
in (though in reality that is currently prevented by the stall
hacks in the commit machinery). But let's not leave such footguns
lying around when we can just pass in the correct state by hand.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241218173650.19782-4-ville.syrjala@linux.intel.com
Reviewed-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>

2 files changed, 15 insertions, 14 deletions

diff --git a/drivers/gpu/drm/i915/display/intel_atomic_plane.c b/drivers/gpu/drm/i915/display/intel_atomic_plane.c
index c558143f4f82..651f81ed85ab 100644
--- a/drivers/gpu/drm/i915/display/intel_atomic_plane.c
+++ b/drivers/gpu/drm/i915/display/intel_atomic_plane.c
@@ -772,7 +772,7 @@ void intel_plane_update_noarm(struct intel_dsb *dsb,
 {
 	struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc);
 
-	trace_intel_plane_update_noarm(plane, crtc);
+	trace_intel_plane_update_noarm(plane_state, crtc);
 
 	if (plane->update_noarm)
 		plane->update_noarm(dsb, plane, crtc_state, plane_state);
@@ -802,7 +802,7 @@ void intel_plane_update_arm(struct intel_dsb *dsb,
 		return;
 	}
 
-	trace_intel_plane_update_arm(plane, crtc);
+	trace_intel_plane_update_arm(plane_state, crtc);
 	plane->update_arm(dsb, plane, crtc_state, plane_state);
 }
 
diff --git a/drivers/gpu/drm/i915/display/intel_display_trace.h b/drivers/gpu/drm/i915/display/intel_display_trace.h
index 989d6f0f3c42..4fe65452e555 100644
--- a/drivers/gpu/drm/i915/display/intel_display_trace.h
+++ b/drivers/gpu/drm/i915/display/intel_display_trace.h
@@ -21,6 +21,7 @@
 #include "intel_vblank.h"
 
 #define __dev_name_display(display) dev_name((display)->drm->dev)
+#define __dev_name_drm(obj) dev_name((obj)->dev->dev)
 #define __dev_name_kms(obj) dev_name((obj)->base.dev->dev)
 
 /*
@@ -403,17 +404,17 @@ TRACE_EVENT(intel_plane_async_flip,
 );
 
 TRACE_EVENT(intel_plane_update_noarm,
-	    TP_PROTO(struct intel_plane *plane, struct intel_crtc *crtc),
-	    TP_ARGS(plane, crtc),
+	    TP_PROTO(const struct intel_plane_state *plane_state, struct intel_crtc *crtc),
+	    TP_ARGS(plane_state, crtc),
 
 	    TP_STRUCT__entry(
-			     __string(dev, __dev_name_kms(plane))
+			     __string(dev, __dev_name_drm(plane_state->uapi.plane))
 			     __field(char, pipe_name)
 			     __field(u32, frame)
 			     __field(u32, scanline)
 			     __array(int, src, 4)
 			     __array(int, dst, 4)
-			     __string(name, plane->base.name)
+			     __string(name, plane_state->uapi.plane->name)
 			     ),
 
 	    TP_fast_assign(
@@ -422,8 +423,8 @@ TRACE_EVENT(intel_plane_update_noarm,
 			   __entry->pipe_name = pipe_name(crtc->pipe);
 			   __entry->frame = intel_crtc_get_vblank_counter(crtc);
 			   __entry->scanline = intel_get_crtc_scanline(crtc);
-			   memcpy(__entry->src, &plane->base.state->src, sizeof(__entry->src));
-			   memcpy(__entry->dst, &plane->base.state->dst, sizeof(__entry->dst));
+			   memcpy(__entry->src, &plane_state->uapi.src, sizeof(__entry->src));
+			   memcpy(__entry->dst, &plane_state->uapi.dst, sizeof(__entry->dst));
 			   ),
 
 	    TP_printk("dev %s, pipe %c, %s, frame=%u, scanline=%u, " DRM_RECT_FP_FMT " -> " DRM_RECT_FMT,
@@ -434,17 +435,17 @@ TRACE_EVENT(intel_plane_update_noarm,
 );
 
 TRACE_EVENT(intel_plane_update_arm,
-	    TP_PROTO(struct intel_plane *plane, struct intel_crtc *crtc),
-	    TP_ARGS(plane, crtc),
+	    TP_PROTO(const struct intel_plane_state *plane_state, struct intel_crtc *crtc),
+	    TP_ARGS(plane_state, crtc),
 
 	    TP_STRUCT__entry(
-			     __string(dev, __dev_name_kms(plane))
+			     __string(dev, __dev_name_drm(plane_state->uapi.plane))
 			     __field(char, pipe_name)
 			     __field(u32, frame)
 			     __field(u32, scanline)
 			     __array(int, src, 4)
 			     __array(int, dst, 4)
-			     __string(name, plane->base.name)
+			     __string(name, plane_state->uapi.plane->name)
 			     ),
 
 	    TP_fast_assign(
@@ -453,8 +454,8 @@ TRACE_EVENT(intel_plane_update_arm,
 			   __entry->pipe_name = pipe_name(crtc->pipe);
 			   __entry->frame = intel_crtc_get_vblank_counter(crtc);
 			   __entry->scanline = intel_get_crtc_scanline(crtc);
-			   memcpy(__entry->src, &plane->base.state->src, sizeof(__entry->src));
-			   memcpy(__entry->dst, &plane->base.state->dst, sizeof(__entry->dst));
+			   memcpy(__entry->src, &plane_state->uapi.src, sizeof(__entry->src));
+			   memcpy(__entry->dst, &plane_state->uapi.dst, sizeof(__entry->dst));
 			   ),
 
 	    TP_printk("dev %s, pipe %c, %s, frame=%u, scanline=%u, " DRM_RECT_FP_FMT " -> " DRM_RECT_FMT,