[PATCH v5 3/6] drm/amdgpu: delay the use of amdgpu_vm_set_task_info
Pierre-Eric Pelloux-Prayer
pierre-eric.pelloux-prayer at amd.com
Thu Oct 3 12:43:11 UTC 2024
At the point the VM is locked (through the root PDs dma_resv object), so
it's safer to call amdgpu_vm_set_task_info.
The original place was not protected against concurrent access, but the
risk was limited to mangled process/task name.
Signed-off-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer at amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index 1e475eb01417..891128ecee6d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -309,9 +309,6 @@ static int amdgpu_cs_pass1(struct amdgpu_cs_parser *p,
p->gang_leader->uf_addr = uf_offset;
kvfree(chunk_array);
- /* Use this opportunity to fill in task info for the vm */
- amdgpu_vm_set_task_info(vm);
-
return 0;
free_all_kdata:
@@ -1180,6 +1177,9 @@ static int amdgpu_cs_vm_handling(struct amdgpu_cs_parser *p)
job->vm_pd_addr = amdgpu_gmc_pd_addr(vm->root.bo);
}
+ /* Use this opportunity to fill in task info for the vm */
+ amdgpu_vm_set_task_info(vm);
+
if (adev->debug_vm) {
/* Invalidate all BOs to test for userspace bugs */
amdgpu_bo_list_for_each_entry(e, p->bo_list) {
--
2.40.1
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