UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

drm/amdgpu: add lock in kfd_process_dequeue_from_device 

[ 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>
This commit is contained in:
Yunxiang Li 2024-06-03 12:29:30 -04:00 committed by Greg Kroah-Hartman
parent ddfe95f2e1
commit 381113ef01
1 changed files with 7 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c
View File

@ -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;
}