kernel/include/uapi/linux/kfd_ioctl.h, branch linux-6.11.y

drm/amdkfd: enable single alu ops for gfx12

2024-05-02T20:18:13Z

GFX12 debugging requires setting up precise ALU operation for catching ALU exceptions. Signed-off-by: Jonathan Kim Tested-by: Lancelot Six Reviewed-by: Eric Huang Signed-off-by: Alex Deucher

drm/amdkfd: Bump kfd version for contiguous VRAM allocation

2024-04-30T14:00:43Z

Bump the kfd ioctl minor version to delcare the contiguous VRAM allocation flag support. Signed-off-by: Philip Yang Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher

drm/amdgpu: Support contiguous VRAM allocation

2024-04-30T13:44:46Z

RDMA device with limited scatter-gather ability requires contiguous VRAM buffer allocation for RDMA peer direct support. Add a new KFD alloc memory flag and store as bo alloc flag AMDGPU_GEM_CREATE_VRAM_CONTIGUOUS. When pin this bo to export for RDMA peerdirect access, this will set TTM_PL_FLAG_CONTIFUOUS flag, and ask VRAM buddy allocator to get contiguous VRAM. Signed-off-by: Philip Yang Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher

drm/amdkfd: range check cp bad op exception interrupts

2024-03-27T12:53:02Z

Due to a CP interrupt bug, bad packet garbage exception codes are raised. Do a range check so that the debugger and runtime do not receive garbage codes. Update the user api to guard exception code type checking as well. Signed-off-by: Jonathan Kim Tested-by: Jesse Zhang Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher

drm/amdkfd: Bump KFD ioctl version

2024-01-15T23:35:35Z

This is not strictly a change in the IOCTL API. This version bump is meant to indicate to user mode the presence of a number of changes and fixes that enable the management of VA mappings in compute VMs using the GEM_VA ioctl for DMABufs exported from KFD. Signed-off-by: Felix Kuehling Reviewed-by: Xiaogang Chen Signed-off-by: Alex Deucher

drm/amdgpu: Add EXT_COHERENT memory allocation flags

2023-09-20T20:24:06Z

These flags (for GEM and SVM allocations) allocate memory that allows for system-scope atomic semantics. On GFX943 these flags cause caches to be avoided on non-local memory. On all other ASICs they are identical in functionality to the equivalent COHERENT flags. Corresponding Thunk patch is at https://github.com/RadeonOpenCompute/ROCT-Thunk-Interface/pull/88 Reviewed-by: David Yat Sin Signed-off-by: David Francis Signed-off-by: Alex Deucher

drm/amdkfd: bump kfd ioctl minor version for event age availability

2023-06-15T15:37:55Z

Bump the minor version to declare event age tracking feature is now available. In kernel amdgpu driver, kfd_wait_on_events is used to support user space signal event wait function. For multiple threads waiting on same event scenery, race condition could occur since some threads after checking signal condition, before calling kfd_wait_on_events, the event interrupt could be fired and wake up other thread which are sleeping on this event. Then those threads could fall into sleep without waking up again. Adding event age tracking in both kernel and user mode, will help avoiding this race condition. Proposed ROCT-Thunk-Interface: https://github.com/RadeonOpenCompute/ROCT-Thunk-Interface/commit/efdbf6cfbc026bd68ac3c35d00dacf84370eb81e https://github.com/RadeonOpenCompute/ROCT-Thunk-Interface/commit/1820ae0a2db85b6f584611dc0cde1a00e7c22915 Proposed ROCR-Runtime: https://github.com/RadeonOpenCompute/ROCR-Runtime/compare/master...zhums:ROCR-Runtime:new_event_wait_review https://github.com/RadeonOpenCompute/ROCR-Runtime/commit/e1f5bdb88eb882ac798aeca2c00ea3fbb2dba459 https://github.com/RadeonOpenCompute/ROCR-Runtime/commit/7d26afd14107b5c2a754c1a3f415d89f3aabb503 Signed-off-by: James Zhu Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher

drm/amdkfd: add event age tracking

2023-06-15T15:37:55Z

Add event age tracking Signed-off-by: James Zhu Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher

drm/amdkfd: bump kfd ioctl minor version for debug api availability

2023-06-09T16:37:03Z

Bump the minor version to declare debugging capability is now available. Signed-off-by: Jonathan Kim Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher

drm/amdkfd: add debug and runtime enable interface

2023-06-09T16:34:41Z

Introduce the GPU debug operations interface. For ROCm-GDB to extend the GNU Debugger's ability to inspect the AMD GPU instruction set, provide the necessary interface to allow the debugger to HW debug-mode set and query exceptions per HSA queue, process or device. The runtime_enable interface coordinates exception handling with the HSA runtime. Usage is available in the kern docs at uapi/linux/kfd_ioctl.h. Signed-off-by: Jonathan Kim Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher