Am 18.01.21 um 22:01 schrieb Andrey Grodzovsky:
We can't allocate and submit IBs post device unplug.
Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index ad91c0c..5096351 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -31,6 +31,7 @@
#include <linux/dma-buf.h>
#include <drm/amdgpu_drm.h>
+#include <drm/drm_drv.h>
#include "amdgpu.h"
#include "amdgpu_trace.h"
#include "amdgpu_amdkfd.h"
@@ -1604,7 +1605,10 @@ static int amdgpu_vm_bo_update_mapping(struct amdgpu_device *adev,
struct amdgpu_vm_update_params params;
enum amdgpu_sync_mode sync_mode;
uint64_t pfn;
- int r;
+ int r, idx;
+
+ if (!drm_dev_enter(&adev->ddev, &idx))
+ return -ENOENT;
Why not -ENODEV?
memset(¶ms, 0, sizeof(params));
params.adev = adev;
@@ -1647,6 +1651,8 @@ static int amdgpu_vm_bo_update_mapping(struct amdgpu_device *adev,
if (r)
goto error_unlock;
+
+ drm_dev_exit(idx);
That's to early. You probably need to do this much further below after
the commit.
Christian.
do {
uint64_t tmp, num_entries, addr;
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