We need to grab the lock of the BO or otherwise can run into a crash
when we try to inspect the current location.
Signed-off-by: Christian König <christian.koenig@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 69 +++++++++++++++-----------
1 file changed, 39 insertions(+), 30 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index 3c0310576b3b..2c8cafec48a4 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -920,42 +920,51 @@ int amdgpu_vm_update_range(struct amdgpu_device *adev, struct amdgpu_vm *vm,
return r;
}
+static void amdgpu_vm_bo_get_memory(struct amdgpu_bo_va *bo_va,
+ struct amdgpu_mem_stats *stats)
+{
+ struct amdgpu_vm *vm = bo_va->base.vm;
+ struct amdgpu_bo *bo = bo_va->base.bo;
+
+ if (!bo)
+ return;
+
+ /*
+ * For now ignore BOs which are currently locked and potentially
+ * changing their location.
+ */
+ if (bo->tbo.base.resv != vm->root.bo->tbo.base.resv &&
+ !dma_resv_trylock(bo->tbo.base.resv))
+ return;
+
+ amdgpu_bo_get_memory(bo, stats);
+ if (bo->tbo.base.resv != vm->root.bo->tbo.base.resv)
+ dma_resv_unlock(bo->tbo.base.resv);
+}
+
void amdgpu_vm_get_memory(struct amdgpu_vm *vm,
struct amdgpu_mem_stats *stats)
{
struct amdgpu_bo_va *bo_va, *tmp;
spin_lock(&vm->status_lock);
- list_for_each_entry_safe(bo_va, tmp, &vm->idle, base.vm_status) {
- if (!bo_va->base.bo)
- continue;
- amdgpu_bo_get_memory(bo_va->base.bo, stats);
- }
- list_for_each_entry_safe(bo_va, tmp, &vm->evicted, base.vm_status) {
- if (!bo_va->base.bo)
- continue;
- amdgpu_bo_get_memory(bo_va->base.bo, stats);
- }
- list_for_each_entry_safe(bo_va, tmp, &vm->relocated, base.vm_status) {
- if (!bo_va->base.bo)
- continue;
- amdgpu_bo_get_memory(bo_va->base.bo, stats);
- }
- list_for_each_entry_safe(bo_va, tmp, &vm->moved, base.vm_status) {
- if (!bo_va->base.bo)
- continue;
- amdgpu_bo_get_memory(bo_va->base.bo, stats);
- }
- list_for_each_entry_safe(bo_va, tmp, &vm->invalidated, base.vm_status) {
- if (!bo_va->base.bo)
- continue;
- amdgpu_bo_get_memory(bo_va->base.bo, stats);
- }
- list_for_each_entry_safe(bo_va, tmp, &vm->done, base.vm_status) {
- if (!bo_va->base.bo)
- continue;
- amdgpu_bo_get_memory(bo_va->base.bo, stats);
- }
+ list_for_each_entry_safe(bo_va, tmp, &vm->idle, base.vm_status)
+ amdgpu_vm_bo_get_memory(bo_va, stats);
+
+ list_for_each_entry_safe(bo_va, tmp, &vm->evicted, base.vm_status)
+ amdgpu_vm_bo_get_memory(bo_va, stats);
+
+ list_for_each_entry_safe(bo_va, tmp, &vm->relocated, base.vm_status)
+ amdgpu_vm_bo_get_memory(bo_va, stats);
+
+ list_for_each_entry_safe(bo_va, tmp, &vm->moved, base.vm_status)
+ amdgpu_vm_bo_get_memory(bo_va, stats);
+
+ list_for_each_entry_safe(bo_va, tmp, &vm->invalidated, base.vm_status)
+ amdgpu_vm_bo_get_memory(bo_va, stats);
+
+ list_for_each_entry_safe(bo_va, tmp, &vm->done, base.vm_status)
+ amdgpu_vm_bo_get_memory(bo_va, stats);
spin_unlock(&vm->status_lock);
}
--
2.34.1
