[Intel-xe] [PATCH 04/26] drm/xe: Add for_each_tile iterator

[Matt Roper]

As we start splitting tile handling out from GT handling, we'll need to
be able to iterate over tiles separately from GTs.  This iterator will
be used in upcoming patches.

Signed-off-by: Matt Roper <matthew.d.roper at intel.com>
---
 drivers/gpu/drm/xe/xe_device.h | 4 ++++
 drivers/gpu/drm/xe/xe_pci.c    | 3 +--
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/xe/xe_device.h b/drivers/gpu/drm/xe/xe_device.h
index f7acaf51a1fc..745dbb16d417 100644
--- a/drivers/gpu/drm/xe/xe_device.h
+++ b/drivers/gpu/drm/xe/xe_device.h
@@ -83,6 +83,10 @@ static inline void xe_device_guc_submission_disable(struct xe_device *xe)
 	xe->info.enable_guc = false;
 }
 
+#define for_each_tile(tile__, xe__, id__) \
+	for ((id__) = 0; (id__) < (xe__)->info.tile_count; (id__++)) \
+		for_each_if ((tile__) = &(xe__)->tiles[(id__)])
+
 #define for_each_gt(gt__, xe__, id__) \
 	for ((id__) = 0; (id__) < (xe__)->info.tile_count; (id__++)) \
 		for_each_if ((gt__) = xe_device_get_gt((xe__), (id__)))
diff --git a/drivers/gpu/drm/xe/xe_pci.c b/drivers/gpu/drm/xe/xe_pci.c
index 87c328106aca..bef65d3a440e 100644
--- a/drivers/gpu/drm/xe/xe_pci.c
+++ b/drivers/gpu/drm/xe/xe_pci.c
@@ -525,8 +525,7 @@ static int xe_info_init(struct xe_device *xe,
 		subplatform_desc->subplatform : XE_SUBPLATFORM_NONE;
 	xe->info.step = xe_step_get(xe);
 
-	for (id = 0; id < xe->info.tile_count; ++id) {
-		tile = &xe->tiles[id];
+	for_each_tile(tile, xe, id) {
 		tile->xe = xe;
 		tile->id = id;
 
-- 
2.40.0