/* * Copyright © 2025 Advanced Micro Devices, Inc. * * Permission is hereby granted, free of charge, to any person * obtaining a copy of this software and associated documentation * files (the "Software"), to deal in the Software without * restriction, including without limitation the rights to use, copy, * modify, merge, publish, distribute, sublicense, and/or sell copies * of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice (including * the next paragraph) shall be included in all copies or substantial * portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. */ #ifndef _HSAKMTCTX_H_ #define _HSAKMTCTX_H_ #include "hsakmt/hsakmttypes.h" #ifdef __cplusplus extern "C" { #endif /** The context-aware version for openning the kfd device. "Opens" the HSA kernel driver for user-kernel mode communication. On Windows, this function gets a handle to the KFD's AMDKFDIO device object that is responsible for user-kernel communication, this handle is used internally by the thunk library to send device I/O control to the HSA kernel driver. No other thunk library function may be called unless the user-kernel communication channel is opened first. On Linux this call opens the "/dev/kfd" device file to establish a communication path to the kernel. */ HSAKMT_STATUS HSAKMTAPI hsaKmtOpenKFDCtx( HsaKFDContext **pCtx //IN/OUT ); /** The context-aware version for closing the kfd device. "Closes" the user-kernel communication path. On Windows, the handle obtained by the hsaKmtOpenKFDCtx() function is closed; no other communication with the kernel driver is possible after the successful execution of the hsaKmtCloseKFDCtx() function. Depending on the failure reason, the user-kernel communication path may or may not be still active. On Linux the function closes the "dev/kfd" device file. No further communication to the kernel driver is allowed until hsaKmtOpenKFDCtx() function is called again. */ HSAKMT_STATUS HSAKMTAPI hsaKmtCloseKFDCtx( void ); /** Open secondary KFD context Creates a new secondary KFD context with an independent communication channel to the kernel driver using a separate file descriptor. The secondary context operates independently from the primary context, allowing isolated management of GPU resources and operations specific to this context without interfering with the primary context's state. */ HSAKMT_STATUS HSAKMTAPI hsaKmtOpenSecondaryKFDCtx( HsaKFDContext **pCtx //IN/OUT ); /** Close secondary KFD context */ HSAKMT_STATUS HSAKMTAPI hsaKmtCloseSecondaryKFDCtx( HsaKFDContext *ctx //IN ); /** The function takes a "snapshot" of the topology information within the KFD to avoid any changes during the enumeration process. */ HSAKMT_STATUS HSAKMTAPI hsaKmtAcquireSystemPropertiesCtx( HsaKFDContext *ctx, //IN HsaSystemProperties* SystemProperties //OUT ); /** Releases the topology "snapshot" taken by hsaKmtAcquireSystemProperties() */ HSAKMT_STATUS HSAKMTAPI hsaKmtReleaseSystemPropertiesCtx( HsaKFDContext *ctx //IN ); /** Retrieves the discoverable sub-properties for a given HSA node. The parameters returned allow the application or runtime to size the management structures necessary to store the information. */ HSAKMT_STATUS HSAKMTAPI hsaKmtGetNodePropertiesCtx( HsaKFDContext *ctx, //IN HSAuint32 NodeId, //IN HsaNodeProperties* NodeProperties //OUT ); /** Retrieves the memory properties of a specific HSA node. the memory pointer passed as MemoryProperties is sized as NumBanks * sizeof(HsaMemoryProperties). NumBanks is retrieved with the hsaKmtGetNodePropertiesCtx() call. Some of the data returned is optional. Not all implementations may return all parameters in the hsaMemoryProperties. */ HSAKMT_STATUS HSAKMTAPI hsaKmtGetNodeMemoryPropertiesCtx( HsaKFDContext *ctx, //IN HSAuint32 NodeId, //IN HSAuint32 NumBanks, //IN HsaMemoryProperties* MemoryProperties //OUT ); /** Retrieves the cache properties of a specific HSA node and processor ID. ProcessorID refers to either a CPU core or a SIMD unit as enumerated earlier via the hsaKmtGetNodePropertiesCtx() call. The memory pointer passed as CacheProperties is sized as NumCaches * sizeof(HsaCacheProperties). NumCaches is retrieved with the hsaKmtGetNodePropertiesCtx() call. The data returned is optional. Not all implementations may return all parameters in the CacheProperties. */ HSAKMT_STATUS HSAKMTAPI hsaKmtGetNodeCachePropertiesCtx( HsaKFDContext *ctx, //IN HSAuint32 NodeId, //IN HSAuint32 ProcessorId, //IN HSAuint32 NumCaches, //IN HsaCacheProperties* CacheProperties //OUT ); /** Retrieves the HSA IO affinity properties of a specific HSA node. the memory pointer passed as Properties is sized as NumIoLinks * sizeof(HsaIoLinkProperties). NumIoLinks is retrieved with the hsaKmtGetNodePropertiesCtx() call. The data returned is optional. Not all implementations may return all parameters in the IoLinkProperties. */ HSAKMT_STATUS HSAKMTAPI hsaKmtGetNodeIoLinkPropertiesCtx( HsaKFDContext *ctx, //IN HSAuint32 NodeId, //IN HSAuint32 NumIoLinks, //IN HsaIoLinkProperties* IoLinkProperties //OUT ); /** Creates an operating system event associated with a HSA event ID */ HSAKMT_STATUS HSAKMTAPI hsaKmtCreateEventCtx( HsaKFDContext *ctx, //IN HsaEventDescriptor* EventDesc, //IN bool ManualReset, //IN bool IsSignaled, //IN HsaEvent** Event //OUT ); /** Destroys an operating system event associated with a HSA event ID */ HSAKMT_STATUS HSAKMTAPI hsaKmtDestroyEventCtx( HsaKFDContext *ctx, //IN HsaEvent* Event //IN ); /** Sets the specified event object to the signaled state */ HSAKMT_STATUS HSAKMTAPI hsaKmtSetEventCtx( HsaKFDContext *ctx, //IN HsaEvent* Event //IN ); /** Sets the specified event object to the non-signaled state */ HSAKMT_STATUS HSAKMTAPI hsaKmtResetEventCtx( HsaKFDContext *ctx, //IN HsaEvent* Event //IN ); /** Queries the state of the specified event object */ HSAKMT_STATUS HSAKMTAPI hsaKmtQueryEventStateCtx( HsaKFDContext *ctx, //IN HsaEvent* Event //IN ); /** Checks the current state of the event object. If the object's state is nonsignaled, the calling thread enters the wait state. The function returns when one of the following occurs: - The specified event object is in the signaled state. - The time-out interval elapses. */ HSAKMT_STATUS HSAKMTAPI hsaKmtWaitOnEventCtx( HsaKFDContext *ctx, //IN HsaEvent* Event, //IN HSAuint32 Milliseconds //IN ); /** Checks the current state of the event object. If the object's state is nonsignaled, the calling thread enters the wait state. event_age can help avoiding race conditions. The function returns when one of the following occurs: - The specified event object is in the signaled state. - The time-out interval elapses. - Tracking event age */ HSAKMT_STATUS HSAKMTAPI hsaKmtWaitOnEvent_ExtCtx( HsaKFDContext *ctx, //IN HsaEvent* Event, //IN HSAuint32 Milliseconds, //IN uint64_t *event_age //IN/OUT ); /** Checks the current state of multiple event objects. The function returns when one of the following occurs: - Either any one or all of the specified objects are in the signaled state - if "WaitOnAll" is "true" the function returns when the state of all objects in array is signaled - if "WaitOnAll" is "false" the function returns when the state of any one of the objects is set to signaled - The time-out interval elapses. */ HSAKMT_STATUS HSAKMTAPI hsaKmtWaitOnMultipleEventsCtx( HsaKFDContext *ctx, //IN HsaEvent* Events[], //IN HSAuint32 NumEvents, //IN bool WaitOnAll, //IN HSAuint32 Milliseconds //IN ); /** Checks the current state of multiple event objects. event_age can help avoiding race conditions. The function returns when one of the following occurs: - Either any one or all of the specified objects are in the signaled state - if "WaitOnAll" is "true" the function returns when the state of all objects in array is signaled - if "WaitOnAll" is "false" the function returns when the state of any one of the objects is set to signaled - The time-out interval elapses. - Tracking event age */ HSAKMT_STATUS HSAKMTAPI hsaKmtWaitOnMultipleEvents_ExtCtx( HsaKFDContext *ctx, //IN HsaEvent* Events[], //IN HSAuint32 NumEvents, //IN bool WaitOnAll, //IN HSAuint32 Milliseconds, //IN uint64_t *event_age //IN/OUT ); /** Creates a GPU queue with user-mode access rights */ HSAKMT_STATUS HSAKMTAPI hsaKmtCreateQueueCtx( HsaKFDContext *ctx, //IN HSAuint32 NodeId, //IN HSA_QUEUE_TYPE Type, //IN HSAuint32 QueuePercentage, //IN HSA_QUEUE_PRIORITY Priority, //IN void* QueueAddress, //IN HSAuint64 QueueSizeInBytes, //IN HsaEvent* Event, //IN HsaQueueResource* QueueResource //OUT ); /** Creates a GPU queue with user-mode access rights */ HSAKMT_STATUS HSAKMTAPI hsaKmtCreateQueueExtCtx( HsaKFDContext *ctx, //IN HSAuint32 NodeId, //IN HSA_QUEUE_TYPE Type, //IN HSAuint32 QueuePercentage, //IN HSA_QUEUE_PRIORITY Priority, //IN HSAuint32 SdmaEngineId, //IN void* QueueAddress, //IN HSAuint64 QueueSizeInBytes, //IN HsaEvent* Event, //IN HsaQueueResource* QueueResource //OUT ); /** Creates a GPU queue with user-mode access rights */ HSAKMT_STATUS HSAKMTAPI hsaKmtCreateQueueV2Ctx( HsaKFDContext *ctx, //IN HSAuint32 NodeId, //IN HSA_QUEUE_TYPE Type, //IN HSAuint32 QueuePercentage, //IN HSA_QUEUE_PRIORITY Priority, //IN HSAuint32 SdmaEngineId, //IN void* QueueAddress, //IN HSAuint64 QueueSizeInBytes, //IN HSAuint64 MetaDataQueueSizeInBytes, //IN HsaEvent* Event, //IN HsaQueueResource* QueueResource //OUT ); /** Updates a queue */ HSAKMT_STATUS HSAKMTAPI hsaKmtUpdateQueueCtx( HsaKFDContext *ctx, //IN HSA_QUEUEID QueueId, //IN HSAuint32 QueuePercentage, //IN HSA_QUEUE_PRIORITY Priority, //IN void* QueueAddress, //IN HSAuint64 QueueSize, //IN HsaEvent* Event //IN ); /** Destroys a queue */ HSAKMT_STATUS HSAKMTAPI hsaKmtDestroyQueueCtx( HsaKFDContext *ctx, //IN HSA_QUEUEID QueueId //IN ); /** Set cu mask for a queue */ HSAKMT_STATUS HSAKMTAPI hsaKmtSetQueueCUMaskCtx( HsaKFDContext *ctx, //IN HSA_QUEUEID QueueId, //IN HSAuint32 CUMaskCount, //IN HSAuint32* QueueCUMask //IN ); HSAKMT_STATUS HSAKMTAPI hsaKmtGetQueueInfoCtx( HsaKFDContext *ctx, //IN HSA_QUEUEID QueueId, //IN HsaQueueInfo *QueueInfo //IN ); /** Allows an HSA process to set/change the default and alternate memory coherency, before starting to dispatch. */ HSAKMT_STATUS HSAKMTAPI hsaKmtSetMemoryPolicyCtx( HsaKFDContext *ctx, //IN HSAuint32 Node, //IN HSAuint32 DefaultPolicy, //IN HSAuint32 AlternatePolicy, //IN void* MemoryAddressAlternate, //IN (page-aligned) HSAuint64 MemorySizeInBytes //IN (page-aligned) ); /** Allocates a memory buffer that may be accessed by the GPU */ HSAKMT_STATUS HSAKMTAPI hsaKmtAllocMemoryCtx( HsaKFDContext *ctx, //IN HSAuint32 PreferredNode, //IN HSAuint64 SizeInBytes, //IN (multiple of page size) HsaMemFlags MemFlags, //IN void** MemoryAddress //IN/OUT (page-aligned) ); /** Allocates a memory buffer with specific alignment that may be accessed by the GPU If Alignment is 0, the smallest possible alignment will be used */ HSAKMT_STATUS HSAKMTAPI hsaKmtAllocMemoryAlignCtx( HsaKFDContext *ctx, //IN HSAuint32 PreferredNode, //IN HSAuint64 SizeInBytes, //IN (multiple of page size) HSAuint64 Alignment, //IN (power of 2 and >= page size) HsaMemFlags MemFlags, //IN void** MemoryAddress //IN/OUT (page-aligned) ); /** Frees a memory buffer */ HSAKMT_STATUS HSAKMTAPI hsaKmtFreeMemoryCtx( HsaKFDContext *ctx, //IN void* MemoryAddress, //IN (page-aligned) HSAuint64 SizeInBytes //IN ); /** Inquires memory available for allocation as a memory buffer */ HSAKMT_STATUS HSAKMTAPI hsaKmtAvailableMemoryCtx( HsaKFDContext *ctx, //IN HSAuint32 Node, //IN HSAuint64 *AvailableBytes //OUT ); /** Registers with KFD a memory buffer that may be accessed by the GPU */ HSAKMT_STATUS HSAKMTAPI hsaKmtRegisterMemoryCtx( HsaKFDContext *ctx, //IN void* MemoryAddress, //IN (cache-aligned) HSAuint64 MemorySizeInBytes //IN (cache-aligned) ); /** Registers with KFD a memory buffer that may be accessed by specific GPUs */ HSAKMT_STATUS HSAKMTAPI hsaKmtRegisterMemoryToNodesCtx( HsaKFDContext *ctx, //IN void *MemoryAddress, //IN (cache-aligned) HSAuint64 MemorySizeInBytes, //IN (cache-aligned) HSAuint64 NumberOfNodes, //IN HSAuint32* NodeArray //IN ); /** Registers with KFD a memory buffer with memory attributes */ HSAKMT_STATUS HSAKMTAPI hsaKmtRegisterMemoryWithFlagsCtx( HsaKFDContext *ctx, //IN void *MemoryAddress, //IN (cache-aligned) HSAuint64 MemorySizeInBytes, //IN (cache-aligned) HsaMemFlags MemFlags //IN ); /** Registers with KFD a graphics buffer and returns graphics metadata */ HSAKMT_STATUS HSAKMTAPI hsaKmtRegisterGraphicsHandleToNodesCtx( HsaKFDContext *ctx, //IN HSAuint64 GraphicsResourceHandle, //IN HsaGraphicsResourceInfo *GraphicsResourceInfo, //OUT HSAuint64 NumberOfNodes, //IN HSAuint32* NodeArray //IN ); /** Similar to hsaKmtRegisterGraphicsHandleToNodes but provides registration options via RegisterFlags. */ HSAKMT_STATUS HSAKMTAPI hsaKmtRegisterGraphicsHandleToNodesExtCtx( HsaKFDContext *ctx, //IN HSAuint64 GraphicsResourceHandle, //IN HsaGraphicsResourceInfo *GraphicsResourceInfo, //OUT HSAuint64 NumberOfNodes, //IN HSAuint32* NodeArray, //IN HSA_REGISTER_MEM_FLAGS RegisterFlags //IN ); /** * Export a dmabuf handle and offset for a given memory address * * Validates that @MemoryAddress belongs to a valid allocation and that the * @MemorySizeInBytes doesn't exceed the end of that allocation. Returns a * dmabuf fd of the allocation and the offset of MemoryAddress within that * allocation. The memory will remain allocated even after the allocation is * freed by hsaKmtFreeMemory for as long as a dmabuf fd remains open or any * importer of that fd maintains an active reference to the memory. */ HSAKMT_STATUS HSAKMTAPI hsaKmtExportDMABufHandleCtx( HsaKFDContext *ctx, //IN void *MemoryAddress, //IN HSAuint64 MemorySizeInBytes, //IN int *DMABufFd, //OUT HSAuint64 *Offset //OUT ); /** Export a memory buffer for sharing with other processes NOTE: for the current revision of the thunk spec, SizeInBytes must match whole allocation. */ HSAKMT_STATUS HSAKMTAPI hsaKmtShareMemoryCtx( HsaKFDContext *ctx, //IN void *MemoryAddress, //IN HSAuint64 SizeInBytes, //IN HsaSharedMemoryHandle *SharedMemoryHandle //OUT ); /** Register shared memory handle */ HSAKMT_STATUS HSAKMTAPI hsaKmtRegisterSharedHandleCtx( HsaKFDContext *ctx, //IN const HsaSharedMemoryHandle *SharedMemoryHandle, //IN void **MemoryAddress, //OUT HSAuint64 *SizeInBytes //OUT ); /** Register shared memory handle to specific nodes only */ HSAKMT_STATUS HSAKMTAPI hsaKmtRegisterSharedHandleToNodesCtx( HsaKFDContext *ctx, //IN const HsaSharedMemoryHandle *SharedMemoryHandle, //IN void **MemoryAddress, //OUT HSAuint64 *SizeInBytes, //OUT HSAuint64 NumberOfNodes, //OUT HSAuint32* NodeArray //OUT ); /** Unregisters with KFD a memory buffer */ HSAKMT_STATUS HSAKMTAPI hsaKmtDeregisterMemoryCtx( HsaKFDContext *ctx, //IN void* MemoryAddress //IN ); /** Ensures that the memory is resident and can be accessed by GPU */ HSAKMT_STATUS HSAKMTAPI hsaKmtMapMemoryToGPUCtx( HsaKFDContext *ctx, //IN void* MemoryAddress, //IN (page-aligned) HSAuint64 MemorySizeInBytes, //IN (page-aligned) HSAuint64* AlternateVAGPU //OUT (page-aligned) ); /** Ensures that the memory is resident and can be accessed by GPUs */ HSAKMT_STATUS HSAKMTAPI hsaKmtMapMemoryToGPUNodesCtx( HsaKFDContext *ctx, //IN void* MemoryAddress, //IN (page-aligned) HSAuint64 MemorySizeInBytes, //IN (page-aligned) HSAuint64* AlternateVAGPU, //OUT (page-aligned) HsaMemMapFlags MemMapFlags, //IN HSAuint64 NumberOfNodes, //IN HSAuint32* NodeArray //IN ); /** Releases the residency of the memory */ HSAKMT_STATUS HSAKMTAPI hsaKmtUnmapMemoryToGPUCtx( HsaKFDContext *ctx, //IN void* MemoryAddress //IN (page-aligned) ); /** Stub for Unmap Graphic Handle */ HSAKMT_STATUS HSAKMTAPI hsaKmtUnmapGraphicHandleCtx( HsaKFDContext *ctx, //IN HSAuint32 NodeId, //IN HSAuint64 FlatMemoryAddress, //IN HSAuint64 SizeInBytes //IN ); /** * Get an AMDGPU device handle for a GPU node */ HSAKMT_STATUS HSAKMTAPI hsaKmtGetAMDGPUDeviceHandleCtx( HsaKFDContext *ctx, //IN HSAuint32 NodeId, //IN HsaAMDGPUDeviceHandle *DeviceHandle //OUT ); /** Sets trap handler and trap buffer to be used for all queues associated with the specified NodeId within this process context */ HSAKMT_STATUS HSAKMTAPI hsaKmtSetTrapHandlerCtx( HsaKFDContext *ctx, //IN HSAuint32 NodeId, //IN void* TrapHandlerBaseAddress, //IN HSAuint64 TrapHandlerSizeInBytes, //IN void* TrapBufferBaseAddress, //IN HSAuint64 TrapBufferSizeInBytes //IN ); /** Gets image tile configuration. */ HSAKMT_STATUS HSAKMTAPI hsaKmtGetTileConfigCtx( HsaKFDContext *ctx, //IN HSAuint32 NodeId, //IN HsaGpuTileConfig *config //IN/OUT ); /** Returns information about pointers */ HSAKMT_STATUS HSAKMTAPI hsaKmtQueryPointerInfoCtx( HsaKFDContext *ctx, //IN const void *Pointer, //IN HsaPointerInfo *PointerInfo //OUT ); /** Associates user data with a memory allocation */ HSAKMT_STATUS HSAKMTAPI hsaKmtSetMemoryUserDataCtx( HsaKFDContext *ctx, //IN const void * Pointer, //IN void * UserData //IN ); /** Allocate GWS resource for a queue */ HSAKMT_STATUS HSAKMTAPI hsaKmtAllocQueueGWSCtx( HsaKFDContext *ctx, //IN HSA_QUEUEID QueueId, //IN HSAuint32 nGWS, //IN HSAuint32 *firstGWS //OUT ); HSAKMT_STATUS HSAKMTAPI hsaKmtRuntimeEnableCtx( HsaKFDContext *ctx, //IN void* rDebug, //IN bool setupTtmp //IN ); HSAKMT_STATUS HSAKMTAPI hsaKmtRuntimeDisableCtx( HsaKFDContext *ctx //IN ); HSAKMT_STATUS HSAKMTAPI hsaKmtGetRuntimeCapabilitiesCtx( HsaKFDContext *ctx, //IN HSAuint32 *caps_mask //OUT ); /** Enable debug trap. */ HSAKMT_STATUS HSAKMTAPI hsaKmtDbgEnableCtx( HsaKFDContext *ctx, //IN void **runtime_info, //Out HSAuint32 *data_size //Out ); /** Disable debug trap. */ HSAKMT_STATUS HSAKMTAPI hsaKmtDbgDisableCtx( HsaKFDContext *ctx //IN ); /** Get device snapshot. */ HSAKMT_STATUS HSAKMTAPI hsaKmtDbgGetDeviceDataCtx( HsaKFDContext *ctx, //IN void **data, //Out HSAuint32 *n_entries, //Out HSAuint32 *entry_size //Out ); /** Get queues snapshot. */ HSAKMT_STATUS HSAKMTAPI hsaKmtDbgGetQueueDataCtx( HsaKFDContext *ctx, //IN void **data, //Out HSAuint32 *n_entries, //Out HSAuint32 *entry_size, //Out bool suspend_queues //In ); /** Check whether gpu firmware and kernel support debugging */ HSAKMT_STATUS HSAKMTAPI hsaKmtCheckRuntimeDebugSupportCtx( HsaKFDContext *ctx //IN ); /** Debug ops call primarily used for KFD testing */ HSAKMT_STATUS HSAKMTAPI hsaKmtDebugTrapIoctlCtx( HsaKFDContext *ctx, //IN struct kfd_ioctl_dbg_trap_args *args, //IN/OUT HSA_QUEUEID *Queues, //IN HSAuint64 *DebugReturn //OUT ); /** Gets GPU and CPU clock counters for particular Node */ HSAKMT_STATUS HSAKMTAPI hsaKmtGetClockCountersCtx( HsaKFDContext *ctx, //IN HSAuint32 NodeId, //IN HsaClockCounters *Counters); //OUT /** Retrieves information on the available HSA counters */ HSAKMT_STATUS HSAKMTAPI hsaKmtPmcGetCounterPropertiesCtx( HsaKFDContext *ctx, //IN HSAuint32 NodeId, //IN HsaCounterProperties** CounterProperties //OUT ); /** Registers a set of (HW) counters to be used for tracing/profiling */ HSAKMT_STATUS HSAKMTAPI hsaKmtPmcRegisterTraceCtx( HsaKFDContext *ctx, //IN HSAuint32 NodeId, //IN HSAuint32 NumberOfCounters, //IN HsaCounter* Counters, //IN HsaPmcTraceRoot* TraceRoot //OUT ); /** Unregisters a set of (HW) counters used for tracing/profiling */ HSAKMT_STATUS HSAKMTAPI hsaKmtPmcUnregisterTraceCtx( HsaKFDContext *ctx, //IN HSAuint32 NodeId, //IN HSATraceId TraceId //IN ); /** Allows a user mode process to get exclusive access to the defined set of (HW) counters used for tracing/profiling */ HSAKMT_STATUS HSAKMTAPI hsaKmtPmcAcquireTraceAccessCtx( HsaKFDContext *ctx, //IN HSAuint32 NodeId, //IN HSATraceId TraceId //IN ); /** Allows a user mode process to release exclusive access to the defined set of (HW) counters used for tracing/profiling */ HSAKMT_STATUS HSAKMTAPI hsaKmtPmcReleaseTraceAccessCtx( HsaKFDContext *ctx, //IN HSAuint32 NodeId, //IN HSATraceId TraceId //IN ); /* Helper functions for calling KFD SVM ioctl */ HSAKMT_STATUS HSAKMTAPI hsaKmtSVMSetAttrCtx( HsaKFDContext *ctx, //IN void *start_addr, //IN: Start of the virtual address range (page-aligned) HSAuint64 size, //IN: size (page-aligned) unsigned int nattr, //IN: number of attributes HSA_SVM_ATTRIBUTE *attrs //IN: array of attributes ); HSAKMT_STATUS HSAKMTAPI hsaKmtSVMGetAttrCtx( HsaKFDContext *ctx, //IN void *start_addr, //IN: Start of the virtual address range (page-aligned) HSAuint64 size, //IN: size (page aligned) unsigned int nattr, //IN: number of attributes HSA_SVM_ATTRIBUTE *attrs //IN/OUT: array of attributes ); HSAKMT_STATUS HSAKMTAPI hsaKmtSetXNACKModeCtx( HsaKFDContext *ctx, //IN HSAint32 enable //IN: enable/disable XNACK node. ); HSAKMT_STATUS HSAKMTAPI hsaKmtGetXNACKModeCtx( HsaKFDContext *ctx, //IN HSAint32 *enable //OUT: returns XNACK value. ); /** Open anonymous file handle to enable events and read SMI events. To enable events, write 64bit events mask to fd, event enums as bit index. for example, event mask ctx(HSA_SMI_EVENT_MASK_FROM_INDEXCtx(HSA_SMI_EVENT_INDEX_MAX) - 1) to enable all events Read event from fd is not blocking, use poll with timeout value to check if event is available. Event is dropped if kernel event fifo is full. */ HSAKMT_STATUS HSAKMTAPI hsaKmtOpenSMICtx( HsaKFDContext *ctx, //IN HSAuint32 NodeId, //IN: GPU node_id to receive the SMI event from int *fd //OUT: anonymous file handle ); /** If this is GPU Mapped memory, remap the first page at this address to be normal system memory This is used in ASAN mode to remap the first page of device memory to share host ASAN logic. This function is only supported when libhsakmt is compiled in ASAN mode. */ HSAKMT_STATUS HSAKMTAPI hsaKmtReplaceAsanHeaderPageCtx( HsaKFDContext *ctx, //IN void *addr //IN: Start of the virtual address page ); /** If this is GPU Mapped memory, remap the first page back to the original GPU memory This is used in ASAN mode to remap the first page back to its original mapping. This function is only supported when libhsakmt is compiled in ASAN mode. */ HSAKMT_STATUS HSAKMTAPI hsaKmtReturnAsanHeaderPageCtx( HsaKFDContext *ctx, //IN void *addr //IN: Start of the virtual address page ); #ifdef __cplusplus } //extern "C" #endif #endif //_HSAKMTCTX_H_