[PATCH] drm/amdgpu: fix "move PD/PT bos on LRU again""

* [PATCH] drm/amdgpu: fix "move PD/PT bos on LRU again""
@ 2018-08-30 11:51 Christian König
       [not found] ` <20180830115116.85557-1-christian.koenig-5C7GfCeVMHo@public.gmane.org>
  0 siblings, 1 reply; 3+ messages in thread
From: Christian König @ 2018-08-30 11:51 UTC (permalink / raw
  To: amd-gfx-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW

Fixes the LRU corruption, we accidentially tried to move things on the
LRU after dropping the reservation lock.

Signed-off-by: Christian König <christian.koenig@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 5 ++---
 drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 2 +-
 2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index dd734970e167..349dcc37ee64 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -1237,6 +1237,8 @@ static int amdgpu_cs_submit(struct amdgpu_cs_parser *p,
 	ring = to_amdgpu_ring(entity->rq->sched);
 	amdgpu_ring_priority_get(ring, priority);
 
+	amdgpu_vm_move_to_lru_tail(p->adev, &fpriv->vm);
+
 	ttm_eu_fence_buffer_objects(&p->ticket, &p->validated, p->fence);
 	amdgpu_mn_unlock(p->mn);
 
@@ -1258,7 +1260,6 @@ int amdgpu_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
 	union drm_amdgpu_cs *cs = data;
 	struct amdgpu_cs_parser parser = {};
 	bool reserved_buffers = false;
-	struct amdgpu_fpriv *fpriv;
 	int i, r;
 
 	if (!adev->accel_working)
@@ -1303,8 +1304,6 @@ int amdgpu_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
 
 	r = amdgpu_cs_submit(&parser, cs);
 
-	fpriv = filp->driver_priv;
-	amdgpu_vm_move_to_lru_tail(adev, &fpriv->vm);
 out:
 	amdgpu_cs_parser_fini(&parser, r, reserved_buffers);
 	return r;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index 72f8c750e128..d74c331893f0 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -1120,7 +1120,7 @@ int amdgpu_vm_update_directories(struct amdgpu_device *adev,
 					   struct amdgpu_vm_bo_base,
 					   vm_status);
 		bo_base->moved = false;
-		list_del_init(&bo_base->vm_status);
+		list_move(&bo_base->vm_status, &vm->idle);
 
 		bo = bo_base->bo->parent;
 		if (!bo)
-- 
2.14.1

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