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| author | Andrey Grodzovsky <andrey.grodzovsky@amd.com> | 2018-06-28 22:51:32 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-07-10 14:17:29 -0500 |
| commit | 2aa37bf58838fd0251e0e6819767ffc8a83eac38 (patch) | |
| tree | a8bac37a94651f3e331b7bcb555a80fd8613f329 | |
| parent | bd4e725084189a198ca47d369d85100216d29b7e (diff) | |
| download | linux-2aa37bf58838fd0251e0e6819767ffc8a83eac38.tar.bz2 | |
drm/amdgpu: Add support for logging process info in amdgpu_vm.
Add process and thread names and pids and a function to extract
this info from relevant amdgpu_vm.
v2: Add documentation and fix identation.
v3: Add getter and setter functions for amdgpu_task_info.
Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Acked-by: Jim Qu <Jim.Qu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 39 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h | 16 |
2 files changed, 55 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c index 712af5c1a5d6..d18f24748b34 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c @@ -2942,3 +2942,42 @@ int amdgpu_vm_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) return 0; } + +/** + * amdgpu_vm_get_task_info - Extracts task info for a PASID. + * + * @dev: drm device pointer + * @pasid: PASID identifier for VM + * @task_info: task_info to fill. + */ +void amdgpu_vm_get_task_info(struct amdgpu_device *adev, unsigned int pasid, + struct amdgpu_task_info *task_info) +{ + struct amdgpu_vm *vm; + + spin_lock(&adev->vm_manager.pasid_lock); + + vm = idr_find(&adev->vm_manager.pasid_idr, pasid); + if (vm) + *task_info = vm->task_info; + + spin_unlock(&adev->vm_manager.pasid_lock); +} + +/** + * amdgpu_vm_set_task_info - Sets VMs task info. + * + * @vm: vm for which to set the info + */ +void amdgpu_vm_set_task_info(struct amdgpu_vm *vm) +{ + if (!vm->task_info.pid) { + vm->task_info.pid = current->pid; + get_task_comm(vm->task_info.task_name, current); + + if (current->group_leader->mm == current->mm) { + vm->task_info.tgid = current->group_leader->pid; + get_task_comm(vm->task_info.process_name, current->group_leader); + } + } +} diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h index 061b99a18cb8..d416f895233d 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h @@ -164,6 +164,14 @@ struct amdgpu_vm_pt { #define AMDGPU_VM_FAULT_PASID(fault) ((u64)(fault) >> 48) #define AMDGPU_VM_FAULT_ADDR(fault) ((u64)(fault) & 0xfffffffff000ULL) + +struct amdgpu_task_info { + char process_name[TASK_COMM_LEN]; + char task_name[TASK_COMM_LEN]; + pid_t pid; + pid_t tgid; +}; + struct amdgpu_vm { /* tree of virtual addresses mapped */ struct rb_root_cached va; @@ -215,6 +223,9 @@ struct amdgpu_vm { /* Valid while the PD is reserved or fenced */ uint64_t pd_phys_addr; + + /* Some basic info about the task */ + struct amdgpu_task_info task_info; }; struct amdgpu_vm_manager { @@ -317,4 +328,9 @@ bool amdgpu_vm_need_pipeline_sync(struct amdgpu_ring *ring, struct amdgpu_job *job); void amdgpu_vm_check_compute_bug(struct amdgpu_device *adev); +void amdgpu_vm_get_task_info(struct amdgpu_device *adev, unsigned int pasid, + struct amdgpu_task_info *task_info); + +void amdgpu_vm_set_task_info(struct amdgpu_vm *vm); + #endif |