Differential D17018 Diff 59815 source/blender/gpu/metal/mtl_memory.hh

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source/blender/gpu/metal/mtl_memory.hh

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* * Once command buffers complete, MTLSafeFreeList's associated with the current		* * Once command buffers complete, MTLSafeFreeList's associated with the current
* command buffer submission are added to the `completed_safelist_queue_`.		* command buffer submission are added to the `completed_safelist_queue_`.
*		*
* * At a set point in time, all MTLSafeFreeList's in `completed_safelist_queue_` have their		* * At a set point in time, all MTLSafeFreeList's in `completed_safelist_queue_` have their
* MTLBuffers re-inserted into the Memory Manager's pools. */		* MTLBuffers re-inserted into the Memory Manager's pools. */
class MTLBufferPool {		class MTLBufferPool {

private:		private:
		#if MTL_DEBUG_MEMORY_STATISTICS == 1
/* Memory statistics. */		/* Memory statistics. */
int64_t total_allocation_bytes_ = 0;		std::atomic<int64_t> total_allocation_bytes_;

#if MTL_DEBUG_MEMORY_STATISTICS == 1
/* Debug statistics. */		/* Debug statistics. */
std::atomic<int> per_frame_allocation_count_;		std::atomic<int> per_frame_allocation_count_;
std::atomic<int64_t> allocations_in_pool_;		std::atomic<int64_t> allocations_in_pool_;
std::atomic<int64_t> buffers_in_pool_;		std::atomic<int64_t> buffers_in_pool_;
#endif		#endif

/* Metal resources. */		/* Metal resources. */
bool ensure_initialised_ = false;		bool ensure_initialised_ = false;
Show All 9 Lines	#endif
* The current value of 1.26 is calibrated for optimal performance and memory utilization. */		* The current value of 1.26 is calibrated for optimal performance and memory utilization. */
static constexpr float mtl_buffer_size_threshold_factor_ = 1.26;		static constexpr float mtl_buffer_size_threshold_factor_ = 1.26;

/* Buffer pools using MTLResourceOptions as key for allocation type.		/* Buffer pools using MTLResourceOptions as key for allocation type.
* Aliased as 'uint64_t' for map type compatibility.		* Aliased as 'uint64_t' for map type compatibility.
* - A size-ordered list (MultiSet) of allocated buffers is kept per MTLResourceOptions		* - A size-ordered list (MultiSet) of allocated buffers is kept per MTLResourceOptions
* permutation. This allows efficient lookup for buffers of a given requested size.		* permutation. This allows efficient lookup for buffers of a given requested size.
* - MTLBufferHandle wraps a gpu::MTLBuffer pointer to achieve easy size-based sorting		* - MTLBufferHandle wraps a gpu::MTLBuffer pointer to achieve easy size-based sorting
* via CompareMTLBuffer. */		* via CompareMTLBuffer.
		*
		* NOTE: buffer_pool_lock_ guards against concurrent access to the memory allocator. This
		* can occur during light baking or rendering operations. */
using MTLBufferPoolOrderedList = std::multiset<MTLBufferHandle, CompareMTLBuffer>;		using MTLBufferPoolOrderedList = std::multiset<MTLBufferHandle, CompareMTLBuffer>;
using MTLBufferResourceOptions = uint64_t;		using MTLBufferResourceOptions = uint64_t;

		std::mutex buffer_pool_lock_;
blender::Map<MTLBufferResourceOptions, MTLBufferPoolOrderedList *> buffer_pools_;		blender::Map<MTLBufferResourceOptions, MTLBufferPoolOrderedList *> buffer_pools_;
blender::Vector<gpu::MTLBuffer *> allocations_;		blender::Vector<gpu::MTLBuffer *> allocations_;

/* Maintain a queue of all MTLSafeFreeList's that have been released		/* Maintain a queue of all MTLSafeFreeList's that have been released
* by the GPU and are ready to have their buffers re-inserted into the		* by the GPU and are ready to have their buffers re-inserted into the
* MemoryManager pools.		* MemoryManager pools.
* Access to this queue is made thread-safe through safelist_lock_. */		* Access to this queue is made thread-safe through safelist_lock_. */
std::mutex safelist_lock_;		std::mutex safelist_lock_;
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