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/** @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
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