6.10-stable review patch. If anyone has any objections, please let me know.
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From: Yunxiang Li Yunxiang.Li@amd.com
[ Upstream commit d225960c2330e102370815367b877baaf8bb8b5d ]
We need to take the reset domain lock before talking to MES. While in this case we can take the lock inside the mes helper. We can't do so for most other mes helpers since they are used during reset. So for consistency sake we add the lock here.
Signed-off-by: Yunxiang Li Yunxiang.Li@amd.com Reviewed-by: Felix Kuehling felix.kuehling@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c index 4858112f9a53..a5bdc3258ae5 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c @@ -28,6 +28,7 @@ #include "kfd_priv.h" #include "kfd_kernel_queue.h" #include "amdgpu_amdkfd.h" +#include "amdgpu_reset.h"
static inline struct process_queue_node *get_queue_by_qid( struct process_queue_manager *pqm, unsigned int qid) @@ -87,8 +88,12 @@ void kfd_process_dequeue_from_device(struct kfd_process_device *pdd) return;
dev->dqm->ops.process_termination(dev->dqm, &pdd->qpd); - if (dev->kfd->shared_resources.enable_mes) - amdgpu_mes_flush_shader_debugger(dev->adev, pdd->proc_ctx_gpu_addr); + if (dev->kfd->shared_resources.enable_mes && + down_read_trylock(&dev->adev->reset_domain->sem)) { + amdgpu_mes_flush_shader_debugger(dev->adev, + pdd->proc_ctx_gpu_addr); + up_read(&dev->adev->reset_domain->sem); + } pdd->already_dequeued = true; }