[PATCH 5/6] drm/amdgpu: save the PD addr before scheduling the job

[Christian König]

From: Christian König <christian.koenig at amd.com>

When we pipeline evictions the page directory could already be
moving somewhere else when grab_id is called.

Signed-off-by: Christian König <christian.koenig at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 2 ++
 drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 6 ++----
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index a3d7d13..850c4dd 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -661,6 +661,8 @@ static int amdgpu_cs_ib_vm_chunk(struct amdgpu_device *adev,
 		}
 	}
 
+	p->job->vm_pd_addr = amdgpu_bo_gpu_offset(vm->page_directory);
+
 	r = amdgpu_bo_vm_update_pte(p, vm);
 	if (!r)
 		amdgpu_cs_sync_rings(p);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index d3e0576..82efb40 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -177,7 +177,6 @@ int amdgpu_vm_grab_id(struct amdgpu_vm *vm, struct amdgpu_ring *ring,
 		      struct amdgpu_sync *sync, struct fence *fence,
 		      unsigned *vm_id, uint64_t *vm_pd_addr)
 {
-	uint64_t pd_addr = amdgpu_bo_gpu_offset(vm->page_directory);
 	struct amdgpu_device *adev = ring->adev;
 	struct fence *updates = sync->last_vm_update;
 	struct amdgpu_vm_id *id, *idle;
@@ -250,7 +249,7 @@ int amdgpu_vm_grab_id(struct amdgpu_vm *vm, struct amdgpu_ring *ring,
 		if (atomic64_read(&id->owner) != vm->client_id)
 			continue;
 
-		if (pd_addr != id->pd_gpu_addr)
+		if (*vm_pd_addr != id->pd_gpu_addr)
 			continue;
 
 		if (!same_ring &&
@@ -298,14 +297,13 @@ int amdgpu_vm_grab_id(struct amdgpu_vm *vm, struct amdgpu_ring *ring,
 	fence_put(id->flushed_updates);
 	id->flushed_updates = fence_get(updates);
 
-	id->pd_gpu_addr = pd_addr;
+	id->pd_gpu_addr = *vm_pd_addr;
 
 	list_move_tail(&id->list, &adev->vm_manager.ids_lru);
 	atomic64_set(&id->owner, vm->client_id);
 	vm->ids[ring->idx] = id;
 
 	*vm_id = id - adev->vm_manager.ids;
-	*vm_pd_addr = pd_addr;
 	trace_amdgpu_vm_grab_id(vm, ring->idx, *vm_id, *vm_pd_addr);
 
 error:
-- 
2.5.0