/* * Copyright 2015 Advanced Micro Devices, Inc. * All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sub license, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE * USE OR OTHER DEALINGS IN THE SOFTWARE. * * The above copyright notice and this permission notice (including the * next paragraph) shall be included in all copies or substantial portions * of the Software. *
*/ /* * Authors: * Christian König <deathsimple@vodafone.de>
*/
error_free: for (i = 0; i < last_entry; ++i)
amdgpu_bo_unref(&array[i].bo); for (i = first_userptr; i < num_entries; ++i)
amdgpu_bo_unref(&array[i].bo);
kvfree(list); return r;
}
staticvoid amdgpu_bo_list_destroy(struct amdgpu_fpriv *fpriv, int id)
{ struct amdgpu_bo_list *list;
mutex_lock(&fpriv->bo_list_lock);
list = idr_remove(&fpriv->bo_list_handles, id);
mutex_unlock(&fpriv->bo_list_lock); if (list)
kref_put(&list->refcount, amdgpu_bo_list_free);
}
int amdgpu_bo_list_get(struct amdgpu_fpriv *fpriv, int id, struct amdgpu_bo_list **result)
{
rcu_read_lock();
*result = idr_find(&fpriv->bo_list_handles, id);
if (*result && kref_get_unless_zero(&(*result)->refcount)) {
rcu_read_unlock(); return 0;
}
info = kvmalloc_array(in->bo_number, info_size, GFP_KERNEL); if (!info) return -ENOMEM;
/* copy the handle array from userspace to a kernel buffer */
r = -EFAULT; if (likely(info_size == in->bo_info_size)) { unsignedlong bytes = in->bo_number *
in->bo_info_size;
if (copy_from_user(info, uptr, bytes)) goto error_free;
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