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63 lines
2.0 KiB
63 lines
2.0 KiB
10 years ago
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/*
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* Copyright (C) 2010-2011, 2013 ARM Limited. All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/**
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* @file ump_internal.c
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*
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* Internal definitions and debugging macros for the UMP implementation.
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*/
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#ifndef _UNIFIED_MEMORY_PROVIDER_INTERNAL_H_
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#define _UNIFIED_MEMORY_PROVIDER_INTERNAL_H_
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#include "ump.h"
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#include <ump/ump_osu.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef enum ump_cache_enabled
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{
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UMP_CACHE_DISABLE = 0,
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UMP_CACHE_ENABLE = 1
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} ump_cache_enabled;
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/**
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* The actual (hidden) definition of ump_handles.
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*/
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typedef struct ump_mem
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{
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ump_secure_id secure_id; /**< UMP device driver cookie */
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void * mapped_mem; /**< Mapped memory; all read and write use this */
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unsigned long size; /**< Size of allocated memory */
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_ump_osu_lock_t* ref_lock; /**< Lock protection ref_count */
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int ref_count; /**< The reference count of the ump_handle in userspace. It is used for finding out
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when to free the memory used by this userspace handle. It is NOT the same as the
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real ump_mem reference count in the devicedriver which do reference counting
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for the memory that this handle reveals. */
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unsigned long cookie; /**< cookie for use in arch_unmap calls */
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ump_cache_enabled is_cached;
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} ump_mem;
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#ifdef __cplusplus
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}
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#endif
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#endif /* _UNIFIED_MEMORY_PROVIDER_INTERNAL_H_ */
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