// Copyright © 2022 Apple Inc.
#pragma once
#include <c10/core/Allocator.h>
#include <c10/macros/Macros.h>
#include <c10/util/Exception.h>
#ifdef __OBJC__
#include <Foundation/Foundation.h>
#include <Metal/Metal.h>
#include <MetalPerformanceShaders/MetalPerformanceShaders.h>
typedef id<MTLDevice> MTLDevice_t;
typedef id<MTLLibrary> MTLLibrary_t;
typedef id<MTLComputePipelineState> MTLComputePipelineState_t;
typedef id<MTLLibrary> MTLLibrary_t;
#else
typedef void* MTLDevice;
typedef void* MTLDevice_t;
typedef void* MTLLibrary_t;
typedef void* MTLComputePipelineState_t;
typedef void* MTLLibrary_t;
#endif
namespace at::mps {
// Helper enum to check if a MPSGraph op is supported in a given macOS version
enum class MacOSVersion : uint32_t {
MACOS_VER_13_0_PLUS = 0,
MACOS_VER_13_1_PLUS,
MACOS_VER_13_2_PLUS,
MACOS_VER_13_3_PLUS,
MACOS_VER_14_0_PLUS,
};
//-----------------------------------------------------------------
// MPSDevice
//
// MPSDevice is a singleton class that returns the default device
//-----------------------------------------------------------------
class TORCH_API MPSDevice {
public:
/**
* MPSDevice should not be cloneable.
*/
MPSDevice(MPSDevice& other) = delete;
/**
* MPSDevice should not be assignable.
*/
void operator=(const MPSDevice&) = delete;
/**
* Gets single instance of the Device.
*/
static MPSDevice* getInstance();
/**
* Returns the single device.
*/
MTLDevice_t device() {
return _mtl_device;
}
/**
* Returns whether running on Ventura or newer
*/
bool isMacOS13Plus(MacOSVersion version) const;
MTLComputePipelineState_t metalIndexingPSO(const std::string &kernel);
MTLLibrary_t getMetalIndexingLibrary();
~MPSDevice();
private:
static MPSDevice* _device;
MTLDevice_t _mtl_device;
MTLLibrary_t _mtl_indexing_library;
MPSDevice();
};
TORCH_API bool is_available();
TORCH_API bool is_macos_13_or_newer(MacOSVersion version = MacOSVersion::MACOS_VER_13_0_PLUS);
TORCH_API at::Allocator* GetMPSAllocator(bool useSharedAllocator = false);
} // namespace at::mps