drm/amdgpu: reserve/unreserve objects out of map/unmap operations

Change-Id: Id6514f2fb6e002437fdbe99353d5d35f4ac736c7
Signed-off-by: Chunming Zhou <David1.Zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>

1 files changed, 18 insertions, 3 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
index 16dca46314bd..00c5b580f56c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
@@ -515,6 +515,9 @@ int amdgpu_gem_va_ioctl(struct drm_device *dev, void *data,
         struct amdgpu_fpriv *fpriv = filp->driver_priv;
         struct amdgpu_bo *rbo;
         struct amdgpu_bo_va *bo_va;
+        struct ttm_validate_buffer tv, tv_pd;
+        struct ww_acquire_ctx ticket;
+        struct list_head list, duplicates;
         uint32_t invalid_flags, va_flags = 0;
         int r = 0;
 
@@ -552,7 +555,18 @@ int amdgpu_gem_va_ioctl(struct drm_device *dev, void *data,
                 return -ENOENT;
         mutex_lock(&fpriv->vm.mutex);
         rbo = gem_to_amdgpu_bo(gobj);
-        r = amdgpu_bo_reserve(rbo, false);
+        INIT_LIST_HEAD(&list);
+        INIT_LIST_HEAD(&duplicates);
+        tv.bo = &rbo->tbo;
+        tv.shared = true;
+        list_add(&tv.head, &list);
+
+        if (args->operation == AMDGPU_VA_OP_MAP) {
+                tv_pd.bo = &fpriv->vm.page_directory->tbo;
+                tv_pd.shared = true;
+                list_add(&tv_pd.head, &list);
+        }
+        r = ttm_eu_reserve_buffers(&ticket, &list, true, &duplicates);
         if (r) {
                 mutex_unlock(&fpriv->vm.mutex);
                 drm_gem_object_unreference_unlocked(gobj);
@@ -561,7 +575,8 @@ int amdgpu_gem_va_ioctl(struct drm_device *dev, void *data,
 
         bo_va = amdgpu_vm_bo_find(&fpriv->vm, rbo);
         if (!bo_va) {
-                amdgpu_bo_unreserve(rbo);
+                ttm_eu_backoff_reservation(&ticket, &list);
+                drm_gem_object_unreference_unlocked(gobj);
                 mutex_unlock(&fpriv->vm.mutex);
                 return -ENOENT;
         }
@@ -584,7 +599,7 @@ int amdgpu_gem_va_ioctl(struct drm_device *dev, void *data,
         default:
                 break;
         }
-
+        ttm_eu_backoff_reservation(&ticket, &list);
         if (!r && !(args->flags & AMDGPU_VM_DELAY_UPDATE))
                 amdgpu_gem_va_update_vm(adev, bo_va, args->operation);
         mutex_unlock(&fpriv->vm.mutex);