Use drm_gpuvm_bo_obtain() instead of drm_gpuvm_bo_create(). The latter
should only be used in conjunction with drm_gpuvm_bo_obtain_prealloc().
drm_gpuvm_bo_obtain() re-uses existing instances of a given VM and BO
combination, whereas drm_gpuvm_bo_create() would always create a new
instance of struct drm_gpuvm_bo and hence leave us with duplicates.
Fixes: ff5f643de0bf ("drm/imagination: Add GEM and VM related code")
Signed-off-by: Danilo Krummrich <dakr@xxxxxxxxxx>
---
drivers/gpu/drm/imagination/pvr_vm.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/imagination/pvr_vm.c b/drivers/gpu/drm/imagination/pvr_vm.c
index 3ad1366294b9..09d481c575b0 100644
--- a/drivers/gpu/drm/imagination/pvr_vm.c
+++ b/drivers/gpu/drm/imagination/pvr_vm.c
@@ -224,6 +224,7 @@ pvr_vm_bind_op_map_init(struct pvr_vm_bind_op *bind_op,
struct pvr_gem_object *pvr_obj, u64 offset,
u64 device_addr, u64 size)
{
+ struct drm_gem_object *obj = gem_from_pvr_gem(pvr_obj);
const bool is_user = vm_ctx == vm_ctx->pvr_dev->kernel_vm_ctx;
const u64 pvr_obj_size = pvr_gem_object_size(pvr_obj);
struct sg_table *sgt;
@@ -245,10 +246,11 @@ pvr_vm_bind_op_map_init(struct pvr_vm_bind_op *bind_op,
bind_op->type = PVR_VM_BIND_TYPE_MAP;
- bind_op->gpuvm_bo = drm_gpuvm_bo_create(&vm_ctx->gpuvm_mgr,
- gem_from_pvr_gem(pvr_obj));
- if (!bind_op->gpuvm_bo)
- return -ENOMEM;
+ dma_resv_lock(obj->resv, NULL);
+ bind_op->gpuvm_bo = drm_gpuvm_bo_obtain(&vm_ctx->gpuvm_mgr, obj);
+ dma_resv_unlock(obj->resv);
+ if (IS_ERR(bind_op->gpuvm_bo))
+ return PTR_ERR(bind_op->gpuvm_bo);
bind_op->new_va = kzalloc(sizeof(*bind_op->new_va), GFP_KERNEL);
bind_op->prev_va = kzalloc(sizeof(*bind_op->prev_va), GFP_KERNEL);
--
2.42.0
