drm/amdgpu: remove VM fault_credit handling

printk_ratelimit() is much better suited to limit the number of reported
VM faults.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 0 insertions, 37 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index b095bbbbc302..fc91f3e54a87 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -3052,7 +3052,6 @@ int amdgpu_vm_init(struct amdgpu_device *adev, struct amdgpu_vm *vm,
         }
 
         INIT_KFIFO(vm->faults);
-        vm->fault_credit = 16;
 
         return 0;
 
@@ -3265,42 +3264,6 @@ void amdgpu_vm_fini(struct amdgpu_device *adev, struct amdgpu_vm *vm)
 }
 
 /**
- * amdgpu_vm_pasid_fault_credit - Check fault credit for given PASID
- *
- * @adev: amdgpu_device pointer
- * @pasid: PASID do identify the VM
- *
- * This function is expected to be called in interrupt context.
- *
- * Returns:
- * True if there was fault credit, false otherwise
- */
-bool amdgpu_vm_pasid_fault_credit(struct amdgpu_device *adev,
-                                  unsigned int pasid)
-{
-        struct amdgpu_vm *vm;
-
-        spin_lock(&adev->vm_manager.pasid_lock);
-        vm = idr_find(&adev->vm_manager.pasid_idr, pasid);
-        if (!vm) {
-                /* VM not found, can't track fault credit */
-                spin_unlock(&adev->vm_manager.pasid_lock);
-                return true;
-        }
-
-        /* No lock needed. only accessed by IRQ handler */
-        if (!vm->fault_credit) {
-                /* Too many faults in this VM */
-                spin_unlock(&adev->vm_manager.pasid_lock);
-                return false;
-        }
-
-        vm->fault_credit--;
-        spin_unlock(&adev->vm_manager.pasid_lock);
-        return true;
-}
-
-/**
  * amdgpu_vm_manager_init - init the VM manager
  *
  * @adev: amdgpu_device pointer