kernel/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.h, branch master

drm/amdkfd: Add MQD manager for GFX 12.1.0

2025-12-08T19:13:08Z

This patch adds the following functionality for GFX 12.1.0: 1. Add a new MQD manager for GFX v12.1.0. 2. Add a new 12.1.0 specific device queue manager file. Signed-off-by: Mukul Joshi Reviewed-by: Alex Sierra Signed-off-by: Alex Deucher

drm/amdkfd: Add pm_config_dequeue_wait_counts API

2025-03-10T17:23:12Z

Update pm_update_grace_period() to more cleaner pm_config_dequeue_wait_counts(). Previously, grace_period variable was overloaded as a variable and a macro, making it inflexible to configure additional dequeue wait times. pm_config_dequeue_wait_counts() now takes in a cmd / variable. This allows flexibility to update different dequeue wait times. Signed-off-by: Harish Kasiviswanathan Reviewed-by: Jonathan Kim Signed-off-by: Alex Deucher

drm/amdkfd: Add support for more per-process flag

2025-03-07T20:33:49Z

Add support for more per-process flags starting with option to configure MFMA precision for gfx 9.5 v2: Change flag name to KFD_PROC_FLAG_MFMA_HIGH_PRECISION Remove unused else condition v3: Bump the KFD API version v4: Missed SH_MEM_CONFIG__PRECISION_MODE__SHIFT define. Added it. Signed-off-by: Harish Kasiviswanathan Reviewed-by: Felix Kuehling Reviewed-by: Amber Lin Signed-off-by: Alex Deucher

drm/amdkfd: Remove kfd_process_hw_exception worker

2025-02-27T21:50:04Z

With GPU reset-domain worker implemented, KFD hw_exception worker is not needed any more, just call amdgpu_amdkfd_gpu_reset directly from kfd_hws_hang. Suggested-by: Felix Kuehling Signed-off-by: Philip Yang Reviewed-by: Lijo Lazar Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher

drm/amdkfd: Fix CU occupancy for GFX 9.4.3

2024-09-25T16:56:07Z

Make CU occupancy calculations work on GFX 9.4.3 by updating the logic to handle multiple XCCs correctly. Signed-off-by: Mukul Joshi Reviewed-by: Harish Kasiviswanathan Signed-off-by: Alex Deucher

drm/amdkfd: Update logic for CU occupancy calculations

2024-09-25T16:56:00Z

Currently, the code uses the IH_VMID_X_LUT register to map a queue's vmid to the corresponding PASID. This logic is racy since CP can update the VMID-PASID mapping anytime especially when there are more processes than number of vmids. Update the logic to calculate CU occupancy by matching doorbell offset of the queue with valid wave counts against the process's queues. Signed-off-by: Mukul Joshi Reviewed-by: Harish Kasiviswanathan Signed-off-by: Alex Deucher

drm/amdkfd: APIs to stop/start KFD scheduling

2024-08-21T02:07:28Z

Provide amdgpu_amdkfd_stop_sched() for amdgpu to stop KFD scheduling compute work on HIQ. amdgpu_amdkfd_start_sched() resumes the scheduling. When amdgpu_amdkfd_stop_sched is called, KFD will unmap queues from runlist. If users send ioctls to KFD to create queues, they'll be added but those queues won't be mapped to runlist (so not scheduled) until amdgpu_amdkfd_start_sched is called. v2: fix build (Alex) Signed-off-by: Amber Lin Signed-off-by: Alex Deucher

drm/amdkfd: support per-queue reset on gfx9

2024-08-06T14:43:18Z

Support per-queue reset for GFX9. The recommendation is for the driver to target reset the HW queue via a SPI MMIO register write. Since this requires pipe and HW queue info and MEC FW is limited to doorbell reports of hung queues after an unmap failure, scan the HW queue slots defined by SET_RESOURCES first to identify the user queue candidates to reset. Only signal reset events to processes that have had a queue reset. If queue reset fails, fall back to GPU reset. Signed-off-by: Jonathan Kim Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher

drm/amdgpu/kfd: remove is_hws_hang and is_resetting

2024-06-14T20:15:58Z

is_hws_hang and is_resetting serves pretty much the same purpose and they all duplicates the work of the reset_domain lock, just check that directly instead. This also eliminate a few bugs listed below and get rid of dqm->ops.pre_reset. kfd_hws_hang did not need to avoid scheduling another reset. If the on-going reset decided to skip GPU reset we have a bad time, otherwise the extra reset will get cancelled anyway. remove_queue_mes forgot to check is_resetting flag compared to the pre-MES path unmap_queue_cpsch, so it did not block hw access during reset correctly. Signed-off-by: Yunxiang Li Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher

drm/amdkfd: Added device queue manager files for GFX12.

2024-05-02T20:18:12Z

Initial implementation, based on GFX11. v2: squash in include fix from David (Alex) Signed-off-by: David Belanger Reviewed-by: Harish Kasiviswanathan Signed-off-by: Alex Deucher