iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm/amdgpu: Use the TGID for trace_amdgpu_vm_update_ptes

Browse Source 
The pid field corresponds to the result of gettid() in userspace.
However, userspace cannot reliably attribute PTE events to processes
with just the thread id. This patch allows userspace to easily
attribute PTE update events to specific processes by comparing this
field with the result of getpid().

For attributing events to specific threads, the thread id is also
contained in the common fields of each trace event.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Friedrich Vock <friedrich.vock@gmx.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
This commit is contained in:
Friedrich Vock 2023-02-02 17:21:03 +01:00 committed by Alex Deucher
parent c108a18462
commit e53448e0a1
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c
View File

@ -974,7 +974,7 @@ int amdgpu_vm_ptes_update(struct amdgpu_vm_update_params *params,
trace_amdgpu_vm_update_ptes(params, frag_start, upd_end,
min(nptes, 32u), dst, incr,
upd_flags,
vm->task_info.pid,
vm->task_info.tgid,
vm->immediate.fence_context);
amdgpu_vm_pte_update_flags(params, to_amdgpu_bo_vm(pt),
cursor.level, pe_start, dst,