/** @file | |
Copyright (c) 2014, Intel Corporation. All rights reserved.<BR> | |
This program and the accompanying materials | |
are licensed and made available under the terms and conditions | |
of the BSD License which accompanies this distribution. The | |
full text of the license may be found at | |
http://opensource.org/licenses/bsd-license.php | |
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, | |
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. | |
**/ | |
#ifndef _UFS_PEIM_MEM_H_ | |
#define _UFS_PEIM_MEM_H_ | |
#define UFS_PEIM_MEM_BIT(a) ((UINTN)(1 << (a))) | |
#define UFS_PEIM_MEM_BIT_IS_SET(Data, Bit) \ | |
((BOOLEAN)(((Data) & UFS_PEIM_MEM_BIT(Bit)) == UFS_PEIM_MEM_BIT(Bit))) | |
typedef struct _UFS_PEIM_MEM_BLOCK UFS_PEIM_MEM_BLOCK; | |
struct _UFS_PEIM_MEM_BLOCK { | |
UINT8 *Bits; // Bit array to record which unit is allocated | |
UINTN BitsLen; | |
UINT8 *Buf; | |
UINTN BufLen; // Memory size in bytes | |
UFS_PEIM_MEM_BLOCK *Next; | |
}; | |
typedef struct _UFS_PEIM_MEM_POOL { | |
UFS_PEIM_MEM_BLOCK *Head; | |
} UFS_PEIM_MEM_POOL; | |
// | |
// Memory allocation unit, note that the value must meet UFS spec alignment requirement. | |
// | |
#define UFS_PEIM_MEM_UNIT 128 | |
#define UFS_PEIM_MEM_UNIT_MASK (UFS_PEIM_MEM_UNIT - 1) | |
#define UFS_PEIM_MEM_DEFAULT_PAGES 16 | |
#define UFS_PEIM_MEM_ROUND(Len) (((Len) + UFS_PEIM_MEM_UNIT_MASK) & (~UFS_PEIM_MEM_UNIT_MASK)) | |
// | |
// Advance the byte and bit to the next bit, adjust byte accordingly. | |
// | |
#define UFS_PEIM_NEXT_BIT(Byte, Bit) \ | |
do { \ | |
(Bit)++; \ | |
if ((Bit) > 7) { \ | |
(Byte)++; \ | |
(Bit) = 0; \ | |
} \ | |
} while (0) | |
#endif | |