Commit f2f6b667 authored May 17, 2024 by Lucas De Marchi

drm/xe: Add helper to capture engine timestamp

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@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240517204310.88854-5-lucas.demarchi@intel.com

Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>

parent 9b090d57

drivers/gpu/drm/xe/xe_hw_engine.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -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));
		}

drivers/gpu/drm/xe/xe_hw_engine.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -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