[PATCH] drm/xe: Move LRC_ENGINE_ID_PPHWSP_OFFSET outside of parallel offset

Matthew Brost matthew.brost at intel.com
Thu Jun 12 17:28:50 UTC 2025


The parallel scratch layout spans 2k and LRC_ENGINE_ID_PPHWSP_OFFSET
lands within than space. This happens to be ok as the offset lands in
reserved part of guc_sched_wq_desc, but for future safety move
LRC_ENGINE_ID_PPHWSP_OFFSET to the unused offset of 1024 below parallel
scratch layout.

Signed-off-by: Matthew Brost <matthew.brost at intel.com>
---
 drivers/gpu/drm/xe/xe_lrc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/xe/xe_lrc.c b/drivers/gpu/drm/xe/xe_lrc.c
index 529c6a972a55..6fb2a2ca4e78 100644
--- a/drivers/gpu/drm/xe/xe_lrc.c
+++ b/drivers/gpu/drm/xe/xe_lrc.c
@@ -654,8 +654,8 @@ u32 xe_lrc_pphwsp_offset(struct xe_lrc *lrc)
 #define LRC_SEQNO_PPHWSP_OFFSET 512
 #define LRC_START_SEQNO_PPHWSP_OFFSET (LRC_SEQNO_PPHWSP_OFFSET + 8)
 #define LRC_CTX_JOB_TIMESTAMP_OFFSET (LRC_START_SEQNO_PPHWSP_OFFSET + 8)
+#define LRC_ENGINE_ID_PPHWSP_OFFSET 1024
 #define LRC_PARALLEL_PPHWSP_OFFSET 2048
-#define LRC_ENGINE_ID_PPHWSP_OFFSET 2096
 
 u32 xe_lrc_regs_offset(struct xe_lrc *lrc)
 {
-- 
2.34.1



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