[SRU][P:linux][PATCH 3/3] drm/xe: Save the gt pointer in lrc and drop the tile

[Thibault Ferrante]

From: Umesh Nerlige Ramappa <umesh.nerlige.ramappa at intel.com>

BugLink: https://bugs.launchpad.net/bugs/2119526

Save the gt pointer in the lrc so that it can used for gt based helpers.

Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa at intel.com>
Reviewed-by: Matthew Brost <matthew.brost at intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi at intel.com>
Link: https://lore.kernel.org/r/20250509161159.2173069-7-umesh.nerlige.ramappa@intel.com
(cherry picked from commit 741d3ef8b8b88fab2729ca89de1180e49bc9cef0)
Signed-off-by: Lucas De Marchi <lucas.demarchi at intel.com>
Signed-off-by: Thibault Ferrante <thibault.ferrante at canonical.com>
---
 drivers/gpu/drm/xe/xe_lrc.c       | 4 ++--
 drivers/gpu/drm/xe/xe_lrc_types.h | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/xe/xe_lrc.c b/drivers/gpu/drm/xe/xe_lrc.c
index 50903098898b..b6968cbda276 100644
--- a/drivers/gpu/drm/xe/xe_lrc.c
+++ b/drivers/gpu/drm/xe/xe_lrc.c
@@ -897,7 +897,7 @@ static void *empty_lrc_data(struct xe_hw_engine *hwe)
 
 static void xe_lrc_set_ppgtt(struct xe_lrc *lrc, struct xe_vm *vm)
 {
-	u64 desc = xe_vm_pdp4_descriptor(vm, lrc->tile);
+	u64 desc = xe_vm_pdp4_descriptor(vm, gt_to_tile(lrc->gt));
 
 	xe_lrc_write_ctx_reg(lrc, CTX_PDP0_UDW, upper_32_bits(desc));
 	xe_lrc_write_ctx_reg(lrc, CTX_PDP0_LDW, lower_32_bits(desc));
@@ -1002,6 +1002,7 @@ static int xe_lrc_init(struct xe_lrc *lrc, struct xe_hw_engine *hwe,
 	int err;
 
 	kref_init(&lrc->refcount);
+	lrc->gt = gt;
 	lrc->flags = 0;
 	lrc_size = ring_size + xe_gt_lrc_size(gt, hwe->class);
 	if (xe_gt_has_indirect_ring_state(gt))
@@ -1029,7 +1030,6 @@ static int xe_lrc_init(struct xe_lrc *lrc, struct xe_hw_engine *hwe,
 	}
 
 	lrc->size = lrc_size;
-	lrc->tile = gt_to_tile(hwe->gt);
 	lrc->ring.size = ring_size;
 	lrc->ring.tail = 0;
 
diff --git a/drivers/gpu/drm/xe/xe_lrc_types.h b/drivers/gpu/drm/xe/xe_lrc_types.h
index e9a9af4b6d14..ae24cf6f8dd9 100644
--- a/drivers/gpu/drm/xe/xe_lrc_types.h
+++ b/drivers/gpu/drm/xe/xe_lrc_types.h
@@ -25,8 +25,8 @@ struct xe_lrc {
 	/** @size: size of lrc including any indirect ring state page */
 	u32 size;
 
-	/** @tile: tile which this LRC belongs to */
-	struct xe_tile *tile;
+	/** @gt: gt which this LRC belongs to */
+	struct xe_gt *gt;
 
 	/** @flags: LRC flags */
 #define XE_LRC_FLAG_INDIRECT_RING_STATE		0x1
-- 
2.48.1