[PATCH v2 3/7] drm/xe: Introduce xe_tile_is_root helper

[Michal Wajdeczko]

Instead of looking at the tile->id member provide a small helper
to explicitly express our intentions.

Signed-off-by: Michal Wajdeczko <michal.wajdeczko at intel.com>
---
 drivers/gpu/drm/xe/xe_device.h    | 5 +++++
 drivers/gpu/drm/xe/xe_gsc_proxy.c | 2 +-
 drivers/gpu/drm/xe/xe_irq.c       | 2 +-
 3 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/xe/xe_device.h b/drivers/gpu/drm/xe/xe_device.h
index e4da797a984b..741afb7029f5 100644
--- a/drivers/gpu/drm/xe/xe_device.h
+++ b/drivers/gpu/drm/xe/xe_device.h
@@ -60,6 +60,11 @@ static inline struct xe_tile *xe_device_get_root_tile(struct xe_device *xe)
 	return &xe->tiles[0];
 }
 
+static inline bool xe_tile_is_root(struct xe_tile *tile)
+{
+	return xe_device_get_root_tile(tile->xe) == tile;
+}
+
 #define XE_MAX_GT_PER_TILE 2
 
 static inline struct xe_gt *xe_tile_get_gt(struct xe_tile *tile, u8 gt_id)
diff --git a/drivers/gpu/drm/xe/xe_gsc_proxy.c b/drivers/gpu/drm/xe/xe_gsc_proxy.c
index d0519cd6704a..3ca8af721435 100644
--- a/drivers/gpu/drm/xe/xe_gsc_proxy.c
+++ b/drivers/gpu/drm/xe/xe_gsc_proxy.c
@@ -483,7 +483,7 @@ int xe_gsc_proxy_init(struct xe_gsc *gsc)
 	}
 
 	/* no multi-tile devices with this feature yet */
-	if (tile->id > 0) {
+	if (!xe_tile_is_root(tile)) {
 		xe_gt_err(gt, "unexpected GSC proxy init on tile %u\n", tile->id);
 		return -EINVAL;
 	}
diff --git a/drivers/gpu/drm/xe/xe_irq.c b/drivers/gpu/drm/xe/xe_irq.c
index 5362d3174b06..1e6540ce9914 100644
--- a/drivers/gpu/drm/xe/xe_irq.c
+++ b/drivers/gpu/drm/xe/xe_irq.c
@@ -550,7 +550,7 @@ static void xelp_irq_reset(struct xe_tile *tile)
 
 static void dg1_irq_reset(struct xe_tile *tile)
 {
-	if (tile->id == 0)
+	if (xe_tile_is_root(tile))
 		dg1_intr_disable(tile_to_xe(tile));
 
 	gt_irq_reset(tile);
-- 
2.47.1