Am 19.10.2017 um 19:40 schrieb Harish Kasiviswanathan:
A single KFD eviction fence is attached to all the BOs of a process
including BOs imported. This fence ensures that all BOs belonging to
that process stays resident when the process queues are active.
Don't add this eviction fence to any sync object unless it is a move or
evict job. These jobs are identified by the fence owner
AMDGPU_FENCE_OWNER_UNDEFINED
Change-Id: I8752d1cf6b2a1c4f2a57292b7c2cd308d5b6f9b7
Signed-off-by: Harish Kasiviswanathan <[email protected]>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c
index a4f0ecf..9b5e41e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_sync.c
@@ -200,8 +200,10 @@ int amdgpu_sync_resv(struct amdgpu_device *adev,
f = reservation_object_get_excl(resv);
fence_owner = amdgpu_sync_get_owner(f);
- if (fence_owner != AMDGPU_FENCE_OWNER_KFD ||
- owner != AMDGPU_FENCE_OWNER_VM)
+ if (fence_owner == AMDGPU_FENCE_OWNER_KFD) {
+ if (owner == AMDGPU_FENCE_OWNER_UNDEFINED)
+ r = amdgpu_sync_fence(adev, sync, f);
+ } else
r = amdgpu_sync_fence(adev, sync, f);
NAK, we always need to sync to the exclusive fence no matter what.
if (explicit_sync)
@@ -216,7 +218,7 @@ int amdgpu_sync_resv(struct amdgpu_device *adev,
reservation_object_held(resv));
fence_owner = amdgpu_sync_get_owner(f);
if (fence_owner == AMDGPU_FENCE_OWNER_KFD &&
- owner == AMDGPU_FENCE_OWNER_VM)
+ owner != AMDGPU_FENCE_OWNER_UNDEFINED)
That hunk looks good to me, but I think we don't have that upstream yet
don't we?
Thanks,
Christian.
continue;
if (amdgpu_sync_same_dev(adev, f)) {
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