kernel/linux.git/drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue.c, branch v6.19.11

drm/amdkfd: Allow device error to be logged

2025-08-27T17:57:48+00:00

The addition of a WARN_ON() check in order to return early in the kq_initialize function retroactively causes the default case in the following switch statement to never be executed, preventing dev_err from logging device errors in the kernel. Both logs are now checked in the default case. Signed-off-by: Sunday Clement Reviewed-by: Harish Kasiviswanathan Signed-off-by: Alex Deucher

drm/amdkfd: Use the correct wptr size

2024-11-21T20:55:20+00:00

Write pointer could be 32-bit or 64-bit. Use the correct size during initialization. Signed-off-by: Lijo Lazar Acked-by: Alex Deucher Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org

drm/amdkfd: make sure ring buffer is flushed before update wptr

2024-11-20T15:03:05+00:00

In a consecutive packet submission, for example unmap and query status, when CP is reading wptr caused by unmap packet doorbell ring, if in some case CP operates slower (e.g. doorbell_mode=1) and wptr has been updated to next packet (query status), but the query status packet content has not been flushed to memory yet, it will cause CP fetched stalled data. Adding mb to ensure ring buffer has been updated before updating wptr. Also adding a mb to ensure wptr updated before doorbell ring. Signed-off-by: Victor Zhao Reviewed-by: Christian König Signed-off-by: Alex Deucher

drm/amdkfd: Use device based logging for errors

2024-07-01T20:10:47+00:00

Convert some pr_* to some dev_* APIs to identify the device. Signed-off-by: Lijo Lazar Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher

drm/amdgpu/kfd: remove is_hws_hang and is_resetting

2024-06-14T20:15:58+00:00

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: Skip packet submission on fatal error

2024-02-26T16:14:31+00:00

If fatal error is detected, packet submission won't go through. Return error in such cases. Also, avoid waiting for fence when fatal error is detected. Signed-off-by: Lijo Lazar Reviewed-by: Asad Kamal Signed-off-by: Alex Deucher

drm/amdkfd: Introduce kfd_node struct (v5)

2023-06-09T13:42:27+00:00

Introduce a new structure, kfd_node, which will now represent a compute node. kfd_node is carved out of kfd_dev structure. kfd_dev struct now will become the parent of kfd_node, and will store common resources such as doorbells, GTT sub-alloctor etc. kfd_node struct will store all resources specific to a compute node, such as device queue manager, interrupt handling etc. This is the first step in adding compute partition support in KFD. v2: introduce kfd_node struct to gc v11 (Hawking) v3: make reference to kfd_dev struct through kfd_node (Morris) v4: use kfd_node instead for kfd isr/mqd functions (Morris) v5: rebase (Alex) Signed-off-by: Mukul Joshi Tested-by: Amber Lin Reviewed-by: Felix Kuehling Signed-off-by: Hawking Zhang Signed-off-by: Morris Zhang Signed-off-by: Alex Deucher

drm/amdkfd: update SPDX license header

2022-02-14T20:08:40+00:00

Update the SPDX License header for all the KFD files. Reviewed-by: Felix Kuehling Signed-off-by: Rajneesh Bhardwaj Signed-off-by: Alex Deucher

drm/amdkfd: add kfd_device_info_init function

2021-12-01T21:15:37+00:00

Initializes kfd->device_info given either asic_type (enum) if GFX version is less than GFX9, or GC IP version if greater. Also takes in vf and the target compiler gfx version. Uses SDMA version to determine num_sdma_queues_per_engine. Convert device_info to a non-pointer member of kfd, change references accordingly. Change unsupported asic condition to only probe f2g, move device_info initialization post-switch. Signed-off-by: Graham Sider Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher

drm/amdkfd: replace asic_family with asic_type

2021-11-17T22:10:01+00:00

asic_family was a duplicate of asic_type, both of type amd_asic_type. Replace all instances of device_info->asic_family with adev->asic_type and remove asic_family from device_info. Signed-off-by: Graham Sider Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher