Just like CTX_TIMESTAMP is used to calculate runtime, add a helper to
get the timestamp for the engine so it can be used to calculate the
"engine time" with the same unit as the runtime is recorded.
Reviewed-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@xxxxxxxxx>
Signed-off-by: Lucas De Marchi <lucas.demarchi@xxxxxxxxx>
---
drivers/gpu/drm/xe/xe_hw_engine.c | 5 +++++
drivers/gpu/drm/xe/xe_hw_engine.h | 1 +
2 files changed, 6 insertions(+)
diff --git a/drivers/gpu/drm/xe/xe_hw_engine.c b/drivers/gpu/drm/xe/xe_hw_engine.c
index 942fca8f1eb9..de1aefaa2335 100644
--- a/drivers/gpu/drm/xe/xe_hw_engine.c
+++ b/drivers/gpu/drm/xe/xe_hw_engine.c
@@ -1121,3 +1121,8 @@ const char *xe_hw_engine_class_to_str(enum xe_engine_class class)
return NULL;
}
+
+u64 xe_hw_engine_read_timestamp(struct xe_hw_engine *hwe)
+{
+ return xe_mmio_read64_2x32(hwe->gt, RING_TIMESTAMP(hwe->mmio_base));
+}
diff --git a/drivers/gpu/drm/xe/xe_hw_engine.h b/drivers/gpu/drm/xe/xe_hw_engine.h
index 843de159e47c..7f2d27c0ba1a 100644
--- a/drivers/gpu/drm/xe/xe_hw_engine.h
+++ b/drivers/gpu/drm/xe/xe_hw_engine.h
@@ -68,5 +68,6 @@ static inline bool xe_hw_engine_is_valid(struct xe_hw_engine *hwe)
}
const char *xe_hw_engine_class_to_str(enum xe_engine_class class);
+u64 xe_hw_engine_read_timestamp(struct xe_hw_engine *hwe);
#endif
--
2.43.0
