user/sven/linux.git/include/uapi/linux/kfd_ioctl.h, branch v5.19.16

drm/amdkfd: CRIU export dmabuf handles for GTT BOs

2022-03-15T18:25:17Z

Export dmabuf handles for GTT BOs so that their contents can be accessed using SDMA during checkpoint/restore. v2: Squash in fix from David to set dmabuf handle to invalid for BOs that cannot be accessed using SDMA during checkpoint/restore. Signed-off-by: David Yat Sin Reviewed-by : Rajneesh Bhardwaj Signed-off-by: Alex Deucher

drm/amdkfd: Add SMI add event helper

2022-03-02T23:40:05Z

To remove duplicate code, unify event message format and simplify new event add in the following patches. Use KFD_SMI_EVENT_MSG_SIZE to define msg size, the same size will be used in user space to alloc the msg receive buffer. Signed-off-by: Philip Yang Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher

drm/amdkfd: Replace zero-length array with flexible-array member

2022-02-16T22:30:03Z

Reference: https://www.kernel.org/doc/html/latest/process/deprecated.html#zero-length-and-one-element-arrays CC: Changcheng Deng Signed-off-by: Felix Kuehling Reviewed-by: Philip Yang Reviewed-by: Christian König Signed-off-by: Alex Deucher

drm/amdkfd: Remove unused old debugger implementation

2022-02-09T21:57:51Z

Cleanup the kfd code by removing the unused old debugger implementation. The address watch was only ever implemented in the upstream driver for GFXv7 (Kaveri). The user mode tools runtime using this API was never open-sourced. Work on the old debugger prototype that used this API has been discontinued years ago. Only a small piece of resetting wavefronts is kept and is moved to kfd_device_queue_manager.c. Signed-off-by: Mukul Joshi Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher

drm/amdkfd: Bump up KFD API version for CRIU

2022-02-07T22:59:53Z

- Change KFD minor version to 7 for CRIU Proposed userspace changes: https://github.com/RadeonOpenCompute/criu Reviewed-by: Felix Kuehling Signed-off-by: Rajneesh Bhardwaj Signed-off-by: Alex Deucher

drm/amdkfd: CRIU Introduce Checkpoint-Restore APIs

2022-02-07T22:59:03Z

Checkpoint-Restore in userspace (CRIU) is a powerful tool that can snapshot a running process and later restore it on same or a remote machine but expects the processes that have a device file (e.g. GPU) associated with them, provide necessary driver support to assist CRIU and its extensible plugin interface. Thus, In order to support the Checkpoint-Restore of any ROCm process, the AMD Radeon Open Compute Kernel driver, needs to provide a set of new APIs that provide necessary VRAM metadata and its contents to a userspace component (CRIU plugin) that can store it in form of image files. This introduces some new ioctls which will be used to checkpoint-Restore any KFD bound user process. KFD only allows ioctl calls from the same process that opened the KFD file descriptor. Since these ioctls are expected to be called from a KFD criu plugin which has elevated ptrace attached privileges and CAP_CHECKPOINT_RESTORE capabilities attached with the file descriptors so modify KFD to allow such calls. (API redesigned by David Yat Sin) Suggested-by: Felix Kuehling Reviewed-by: Felix Kuehling Signed-off-by: David Yat Sin Signed-off-by: Rajneesh Bhardwaj Signed-off-by: Alex Deucher

drm/amdkfd: Allow querying SVM attributes that are clear

2021-08-06T20:12:32Z

Currently the SVM get_attr call allows querying, which flags are set in the entire address range. Add the opposite query, which flags are clear in the entire address range. Both queries can be combined in a single get_attr call, which allows answering questions such as, "is this address range coherent, non-coherent, or a mix of both"? Proposed userspace for UAPI: https://github.com/RadeonOpenCompute/ROCR-Runtime/tree/memory_model_queries Signed-off-by: Felix Kuehling Reviewed-by: Philip Yand Signed-off-by: Alex Deucher

drm/amdkfd: add ioctl to configure and query xnack retries

2021-04-21T01:47:48Z

Xnack retries are used for page fault recovery. Some AMD chip families support continuously retry while page table entries are invalid. The driver must handle the page fault interrupt and fill in a valid entry for the GPU to continue. This ioctl allows to enable/disable XNACK retries per KFD process. Signed-off-by: Alex Sierra Reviewed-by: Felix Kuehling Signed-off-by: Felix Kuehling Signed-off-by: Alex Deucher

drm/amdkfd: add svm ioctl API

2021-04-21T01:46:14Z

Add svm (shared virtual memory) ioctl data structure and API definition. The svm ioctl API is designed to be extensible in the future. All operations are provided by a single IOCTL to preserve ioctl number space. The arguments structure ends with a variable size array of attributes that can be used to set or get one or multiple attributes. Signed-off-by: Philip Yang Signed-off-by: Alex Sierra Reviewed-by: Felix Kuehling Signed-off-by: Felix Kuehling Signed-off-by: Alex Deucher

drm/amdkfd: Bump KFD API version

2021-03-24T03:40:55Z

Indicate the availability reliable SRAM EDC state in the new bit in the device properties. Proposed userspace changes: https://github.com/RadeonOpenCompute/ROCT-Thunk-Interface/commit/7cdd63475c36bb9f49bb960f90f9a8cdb7e80a21 Signed-off-by: Felix Kuehling Reviewed-by: Kent Russell Signed-off-by: Alex Deucher