64 lines
1.7 KiB
C
Executable File
64 lines
1.7 KiB
C
Executable File
/*
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* ion.c
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*
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* Memory Allocator functions for ion
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*
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* Copyright 2011 Google, Inc
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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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#ifndef __SYS_ION_MEM_MANAGER_H__
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#define __SYS_ION_MEM_MANAGER_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <linux/ion_uapi.h>
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typedef enum
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{
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IonHeapType_CARVEOUT = 0, //carveout or cma
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//IonHeapType_CMA,
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IonHeapType_IOMMU = 3,
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IonHeapType_UNKNOWN = -1,
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}IonHeapType;
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typedef struct IonAllocAttr
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{
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unsigned int mLen;
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unsigned int mAlign;
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IonHeapType mIonHeapType;
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int mbSupportCache; //if ion memory attach cache attribute. 1:support; 0:disable
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}IonAllocAttr;
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int ion_memOpen(void);
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int ion_memClose(void);
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unsigned char* ion_allocMem(unsigned int size);
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unsigned char* ion_allocMem_extend(IonAllocAttr *pAttr);
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int ion_freeMem(void *vir_ptr);
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unsigned int ion_getMemPhyAddr(void *vir_ptr);
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int ion_getMemMapFd(void *vir_ptr);
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ion_user_handle_t ion_getMemHandle(void *vir_ptr);
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IonHeapType ion_getMemHeapType(void *vir_ptr);
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int ion_flushCache(void *vir_ptr, unsigned int size);
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int ion_flushCache_check(void *vir_ptr, unsigned int size, int bCheck);
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//int ion_memGetTotalSize();
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#ifdef __cplusplus
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}
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#endif
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#endif /* __SYS_ION_MEM_MANAGER_H__ */
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