linux/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c, branch v6.18

drm/amdkfd: fix suspend/resume all calls in mes based eviction path

2025-10-13T18:14:28Z

Suspend/resume all gangs should be done with the device lock is held. Signed-off-by: Jonathan Kim Acked-by: Alex Deucher Reviewed-by: Harish Kasiviswanathan Signed-off-by: Alex Deucher

drm/amdkfd: Fix checkpoint-restore on multi-xcc

2025-08-04T19:38:49Z

GPUs with multi-xcc have multiple MQDs per queue. This patch saves and restores all the MQDs within the partition. Signed-off-by: David Yat Sin Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher (cherry picked from commit a578f2a58c3ab38f0643b1b6e7534af860233cb1) Cc: stable@vger.kernel.org

drm/amdgpu/sdma: allow caller to handle kernel rings in engine reset

2025-07-07T17:48:25Z

Add a parameter to amdgpu_sdma_reset_engine() to let the caller handle the kernel rings. This allows the kernel rings to back up their unprocessed state if the reset comes in via the drm scheduler rather than KFD. Reviewed-by: Jesse Zhang Signed-off-by: Alex Deucher

drm/amdkfd: Avoid queue reset if disabled

2025-07-07T17:48:12Z

If ring reset is disabled, skip resetting queues. Instead, fall back to device based reset. Signed-off-by: Lijo Lazar Reviewed-by: Hawking Zhang Signed-off-by: Alex Deucher

drm/amdkfd: change error to warning message for SDMA queues creation

2025-05-07T21:41:27Z

SDMA doesn't support oversubsciption, it is the user matter to create queues over HW limit, but not supposed to be a KFD error. Signed-off-by: Eric Huang Reviewed-by: Harish Kasiviswanathan Signed-off-by: Alex Deucher

drm/amdgpu/sdma: fix engine reset handling

2025-03-21T16:16:34Z

Move the kfd suspend/resume code into the caller. That is where the KFD is likely to detect a reset so on the KFD side there is no need to call them. Also add a mutex to lock the actual reset sequence. v2: make the locking per instance Fixes: bac38ca8c475 ("drm/amdkfd: implement per queue sdma reset for gfx 9.4+") Reviewed-by: Jesse Zhang Signed-off-by: Alex Deucher

drm/amd/amdkfd: Evict all queues even HWS remove queue failed

2025-03-11T16:36:52Z

[Why] If reset is detected and kfd need to evict working queues, HWS moving queue will be failed. Then remaining queues are not evicted and in active state. After reset done, kfd uses HWS to termination remaining activated queues but HWS is resetted. So remove queue will be failed again. [How] Keep removing all queues even if HWS returns failed. It will not affect cpsch as it checks reset_domain->sem. v2: If any queue failed, evict queue returns error. v3: Declare err inside the if-block. Reviewed-by: Felix Kuehling Signed-off-by: Yifan Zha 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: Set per-process flags only once cik/vi

2025-03-07T20:33:49Z

Set per-process static sh_mem config only once during process initialization. Move all static changes from update_qpd() which is called each time a queue is created to set_cache_memory_policy() which is called once during process initialization. set_cache_memory_policy() is currently defined only for cik and vi family. So this commit only focuses on these two. A separate commit will address other asics. Signed-off-by: Harish Kasiviswanathan Reviewed-by: Amber Lin Signed-off-by: Alex Deucher