/** @file | |
Copyright (c) 2015 - 2017, Intel Corporation. All rights reserved.<BR> | |
SPDX-License-Identifier: BSD-2-Clause-Patent | |
**/ | |
#ifndef _EMMC_PEIM_MEM_H_ | |
#define _EMMC_PEIM_MEM_H_ | |
#define EMMC_PEIM_MEM_BIT(a) ((UINTN)(1 << (a))) | |
#define EMMC_PEIM_MEM_BIT_IS_SET(Data, Bit) \ | |
((BOOLEAN)(((Data) & EMMC_PEIM_MEM_BIT(Bit)) == EMMC_PEIM_MEM_BIT(Bit))) | |
typedef struct _EMMC_PEIM_MEM_BLOCK EMMC_PEIM_MEM_BLOCK; | |
struct _EMMC_PEIM_MEM_BLOCK { | |
UINT8 *Bits; // Bit array to record which unit is allocated | |
UINTN BitsLen; | |
UINT8 *Buf; | |
UINT8 *BufHost; | |
UINTN BufLen; // Memory size in bytes | |
VOID *Mapping; | |
EMMC_PEIM_MEM_BLOCK *Next; | |
}; | |
typedef struct _EMMC_PEIM_MEM_POOL { | |
EMMC_PEIM_MEM_BLOCK *Head; | |
} EMMC_PEIM_MEM_POOL; | |
// | |
// Memory allocation unit, note that the value must meet EMMC spec alignment requirement. | |
// | |
#define EMMC_PEIM_MEM_UNIT 128 | |
#define EMMC_PEIM_MEM_UNIT_MASK (EMMC_PEIM_MEM_UNIT - 1) | |
#define EMMC_PEIM_MEM_DEFAULT_PAGES 16 | |
#define EMMC_PEIM_MEM_ROUND(Len) (((Len) + EMMC_PEIM_MEM_UNIT_MASK) & (~EMMC_PEIM_MEM_UNIT_MASK)) | |
// | |
// Advance the byte and bit to the next bit, adjust byte accordingly. | |
// | |
#define EMMC_PEIM_NEXT_BIT(Byte, Bit) \ | |
do { \ | |
(Bit)++; \ | |
if ((Bit) > 7) { \ | |
(Byte)++; \ | |
(Bit) = 0; \ | |
} \ | |
} while (0) | |
#endif |