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| author | Friedrich Vock <friedrich.vock@gmx.de> | 2023-02-02 17:21:03 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-02-14 19:11:53 +0100 |
| commit | a2e60fee4b7681bb9664f6a638d9630102ac978b (patch) | |
| tree | b0fa9e428d3ca31eb317f015739bca02f6e70242 | |
| parent | 6f097c24815e67909a1fcc2c605586d02babd673 (diff) | |
| download | linux-a2e60fee4b7681bb9664f6a638d9630102ac978b.tar.gz | |
drm/amdgpu: Use the TGID for trace_amdgpu_vm_update_ptes
commit e53448e0a1efa5133c7db78f1df1f4caf177676b upstream. 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 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c index b5f3bba851db..01e42bdd8e4e 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, |