Am 06.07.2018 um 15:50 schrieb Andrey Grodzovsky:
On 07/06/2018 04:02 AM, Christian König wrote:
Am 05.07.2018 um 20:56 schrieb Andrey Grodzovsky:
Problem: When PD/PT update made by CPU root PD was not yet mapped
causing
page fault.
Fix: Verify root PD is mapped into CPU address space.
v2:
Make sure that we add the root PD to the relocated list
since then it's get mapped into CPU address space bt default
in amdgpu_vm_update_directories.
Link: https://bugs.freedesktop.org/show_bug.cgi?id=107065
Signed-off-by: Andrey Grodzovsky <[email protected]>
Signed-off-by: Andrey Grodzovsky <[email protected]>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index 845f73a..1a8caf1 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -156,6 +156,9 @@ static void amdgpu_vm_bo_base_init(struct
amdgpu_vm_bo_base *base,
return;
list_add_tail(&base->bo_list, &bo->va);
+ if (bo->tbo.type == ttm_bo_type_kernel)
+ list_move(&base->vm_status, &vm->relocated);
+
if (bo->tbo.resv != vm->root.base.bo->tbo.resv)
return;
@@ -168,7 +171,8 @@ static void amdgpu_vm_bo_base_init(struct
amdgpu_vm_bo_base *base,
* is currently evicted. add the bo to the evicted list to
make sure it
* is validated on next vm use to avoid fault.
* */
- list_move_tail(&base->vm_status, &vm->evicted);
+ if (bo->tbo.type != ttm_bo_type_kernel)
+ list_move_tail(&base->vm_status, &vm->evicted);
You need to drop that chunk, the evicted state supersedes the
relocated state (e.g. when they are validated they move from evicted
to relocated).
I don't get it, can you explain more in detail why it's OK to remove
it ? They will not be in evicted list any more.
See what happens with the BOs on the evicted list -> they get moved to
the relocated list after validation.
Christian.
Andrey
Additional to that the now superfluous move in
amdgpu_vm_alloc_levels() can be removed.
Christian.
}
/**
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