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drm/xe: Add helper to capture engine timestamp

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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>
This commit is contained in:
Lucas De Marchi 2024-05-17 13:43:06 -07:00
parent 9b090d5774
commit f2f6b667c6
2 changed files with 6 additions and 0 deletions
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5
drivers/gpu/drm/xe/xe_hw_engine.c
View File

@ -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));
}

1
drivers/gpu/drm/xe/xe_hw_engine.h
View File

@ -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