[Intel-xe] [PATCH v2 9/9] Add new fence_id and fence count functions

[Jouni Högander]

Add new fence id and fence count functions and use them instead of directly
accessing struct members

Signed-off-by: Jouni Högander <jouni.hogander at intel.com>
---
 drivers/gpu/drm/i915/display/intel_fbc.c         | 16 +++++-----------
 drivers/gpu/drm/i915/i915_vma.h                  |  5 +++++
 .../gpu/drm/xe/compat-i915-headers/i915_vma.h    |  2 ++
 3 files changed, 12 insertions(+), 11 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_fbc.c b/drivers/gpu/drm/i915/display/intel_fbc.c
index 2cb537504c2f..7e4dcd747c02 100644
--- a/drivers/gpu/drm/i915/display/intel_fbc.c
+++ b/drivers/gpu/drm/i915/display/intel_fbc.c
@@ -47,6 +47,7 @@
 #include "i915_reg.h"
 #include "i915_utils.h"
 #include "i915_vgpu.h"
+#include "i915_vma.h"
 #include "intel_cdclk.h"
 #include "intel_de.h"
 #include "intel_display_trace.h"
@@ -988,17 +989,14 @@ static void intel_fbc_update_state(struct intel_atomic_state *state,
 
 	/* FBC1 compression interval: arbitrary choice of 1 second */
 	fbc_state->interval = drm_mode_vrefresh(&crtc_state->hw.adjusted_mode);
-#ifdef I915
 	fbc_state->fence_y_offset = intel_plane_fence_y_offset(plane_state);
 
 	drm_WARN_ON(&i915->drm, plane_state->flags & PLANE_HAS_FENCE &&
-		    !plane_state->ggtt_vma->fence);
+		    !intel_gt_fence_count(to_gt(i915)));
 
-	if (plane_state->flags & PLANE_HAS_FENCE &&
-	    plane_state->ggtt_vma->fence)
-		fbc_state->fence_id = plane_state->ggtt_vma->fence->id;
+	if (plane_state->flags & PLANE_HAS_FENCE)
+		fbc_state->fence_id =  i915_vma_fence_id(plane_state->ggtt_vma);
 	else
-#endif
 		fbc_state->fence_id = -1;
 
 	fbc_state->cfb_stride = intel_fbc_cfb_stride(plane_state);
@@ -1008,7 +1006,6 @@ static void intel_fbc_update_state(struct intel_atomic_state *state,
 
 static bool intel_fbc_is_fence_ok(const struct intel_plane_state *plane_state)
 {
-#ifdef I915
 	struct drm_i915_private *i915 = to_i915(plane_state->uapi.plane->dev);
 
 	/*
@@ -1025,10 +1022,7 @@ static bool intel_fbc_is_fence_ok(const struct intel_plane_state *plane_state)
 	 */
 	return DISPLAY_VER(i915) >= 9 ||
 		(plane_state->flags & PLANE_HAS_FENCE &&
-		 plane_state->ggtt_vma->fence);
-#else
-	return true;
-#endif
+		 i915_vma_fence_id(plane_state->ggtt_vma) != -1);
 }
 
 static bool intel_fbc_is_cfb_ok(const struct intel_plane_state *plane_state)
diff --git a/drivers/gpu/drm/i915/i915_vma.h b/drivers/gpu/drm/i915/i915_vma.h
index ed5c9d682a1b..06e613752c55 100644
--- a/drivers/gpu/drm/i915/i915_vma.h
+++ b/drivers/gpu/drm/i915/i915_vma.h
@@ -418,6 +418,11 @@ i915_vma_unpin_fence(struct i915_vma *vma)
 		__i915_vma_unpin_fence(vma);
 }
 
+static inline int i915_vma_fence_id(const struct i915_vma *vma)
+{
+	return vma->fence ? vma->fence->id : -1;
+}
+
 void i915_vma_parked(struct intel_gt *gt);
 
 static inline bool i915_vma_is_scanout(const struct i915_vma *vma)
diff --git a/drivers/gpu/drm/xe/compat-i915-headers/i915_vma.h b/drivers/gpu/drm/xe/compat-i915-headers/i915_vma.h
index c40bb27ac72a..45ea0e44073d 100644
--- a/drivers/gpu/drm/xe/compat-i915-headers/i915_vma.h
+++ b/drivers/gpu/drm/xe/compat-i915-headers/i915_vma.h
@@ -11,4 +11,6 @@ struct i915_vma {
 	struct drm_mm_node node;
 };
 
+#define i915_vma_fence_id(vma) -1
+
 #endif
-- 
2.34.1