From 4a3ef2809c88304887b7fa15dc20887b7ce9bf0a Mon Sep 17 00:00:00 2001 From: Jesse Zhang Date: Thu, 3 Sep 2026 17:36:14 +0800 Subject: [PATCH] drm/amdgpu/sdma: add detect_hung_queue callback Add an optional per-IP callback that maps a user queue's doorbell index to its HW slot (instance, queue_id). It is needed to reset a hung SDMA user queue over MMIO, since struct amdgpu_usermode_queue does not store its HW slot. Signed-off-by: Jesse Zhang Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h index 671cfbb67b7a..659836c2c377 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h @@ -59,6 +59,8 @@ struct amdgpu_sdma_funcs { int (*stop_kernel_queue)(struct amdgpu_ring *ring); int (*start_kernel_queue)(struct amdgpu_ring *ring); int (*soft_reset_kernel_queue)(struct amdgpu_device *adev, u32 instance_id); + bool (*detect_hung_queue)(struct amdgpu_device *adev, u32 doorbell_index, + u32 *instance_id, u32 *queue_id); }; struct amdgpu_sdma_instance {