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