Synchronization APIs

Defines XeTLA APIs for synchronization primitives. More...

Collaboration diagram for Synchronization APIs:

Functions
template<uint8_t NbarCount>
__XETLA_API void	gpu::xetla::xetla_nbarrier_init ()
	Initialize the number of named barrier index for a kernel.
__XETLA_API void	gpu::xetla::named_barrier_signal (uint8_t barrier_id, uint8_t producer_consumer_mode, uint32_t num_producers, uint32_t num_consumers)
	Perform signal operation for the given named barrier id.
__XETLA_API void	gpu::xetla::named_barrier_wait (uint8_t barrier_id)
	Wait on a named barrier.

Detailed Description

Defines XeTLA APIs for synchronization primitives.

Function Documentation

named_barrier_signal()

__XETLA_API void gpu::xetla::named_barrier_signal	(	uint8_t	barrier_id,
		uint8_t	producer_consumer_mode,
		uint32_t	num_producers,
		uint32_t	num_consumers
	)

Perform signal operation for the given named barrier id.

Available only on PVC.

Parameters

barrier_id	[in] is the named barrier id.
producer_consumer_mode	[in] is 2-bit flag to indicate if it's producer-consumer mode(0x0) or producer mode (0x1) or consumer mode (0x2). User must ensure the input value is set correctly and higher order bits are cleared.
num_producers	[in] is the number of producers.
num_consumers	[in] is the number of consumers.

named_barrier_wait()

__XETLA_API void gpu::xetla::named_barrier_wait

(

uint8_t

barrier_id

)

Wait on a named barrier.

Available only on PVC

Parameters

barrier_id

[in] is the named barrier id. It’s value cannot exceed the total count of initialized named barriers.

xetla_nbarrier_init()

template<uint8_t NbarCount>

__XETLA_API void gpu::xetla::xetla_nbarrier_init

(

)

Initialize the number of named barrier index for a kernel.

Available only on PVC. Only need to initialize once at the beginning.

Template Parameters

NbarCount

- number of named barriers.