From: Friedrich Vock Date: Thu, 2 Feb 2023 16:21:03 +0000 (+0100) Subject: drm/amdgpu: Use the TGID for trace_amdgpu_vm_update_ptes X-Git-Tag: v6.6.7~3604^2~3^2~3 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=e53448e0a1efa5133c7db78f1df1f4caf177676b;p=platform%2Fkernel%2Flinux-starfive.git drm/amdgpu: Use the TGID for trace_amdgpu_vm_update_ptes 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 Signed-off-by: Friedrich Vock Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org --- diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c index b5f3bba..01e42bd 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c @@ -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,