SdHcMem.c File Reference

#include "SdBlockIoPei.h"

Go to the source code of this file.

Functions
SD_PEIM_MEM_BLOCK *	SdPeimAllocMemBlock (IN UINTN Pages)
VOID	SdPeimFreeMemBlock (IN SD_PEIM_MEM_POOL *Pool, IN SD_PEIM_MEM_BLOCK *Block)
VOID *	SdPeimAllocMemFromBlock (IN SD_PEIM_MEM_BLOCK *Block, IN UINTN Units)
VOID	SdPeimInsertMemBlockToPool (IN SD_PEIM_MEM_BLOCK *Head, IN SD_PEIM_MEM_BLOCK *Block)
BOOLEAN	SdPeimIsMemBlockEmpty (IN SD_PEIM_MEM_BLOCK *Block)
EFI_STATUS	SdPeimInitMemPool (IN SD_PEIM_HC_PRIVATE_DATA *Private)
EFI_STATUS	SdPeimFreeMemPool (IN SD_PEIM_MEM_POOL *Pool)
VOID *	SdPeimAllocateMem (IN SD_PEIM_MEM_POOL *Pool, IN UINTN Size)
VOID	SdPeimFreeMem (IN SD_PEIM_MEM_POOL *Pool, IN VOID *Mem, IN UINTN Size)

Detailed Description

Copyright (c) 2015 - 2017, Intel Corporation. All rights reserved.

SPDX-License-Identifier: BSD-2-Clause-Patent

Definition in file SdHcMem.c.

Function Documentation

SdPeimAllocateMem()

VOID * SdPeimAllocateMem	(	IN SD_PEIM_MEM_POOL *	Pool,
		IN UINTN	Size
	)

Allocate some memory from the host controller's memory pool which can be used to communicate with host controller.

Parameters

Pool	The host controller's memory pool.
Size	Size of the memory to allocate.

Returns

The allocated memory or NULL.

Definition at line 294 of file SdHcMem.c.

SdPeimAllocMemBlock()

SD_PEIM_MEM_BLOCK * SdPeimAllocMemBlock

(

IN UINTN

Pages

)

Allocate a block of memory to be used by the buffer pool.

Parameters

Pages

How many pages to allocate.

Returns

The allocated memory block or NULL if failed.

Definition at line 20 of file SdHcMem.c.

SdPeimAllocMemFromBlock()

VOID * SdPeimAllocMemFromBlock	(	IN SD_PEIM_MEM_BLOCK *	Block,
		IN UINTN	Units
	)

Alloc some memory from the block.

Parameters

Block	The memory block to allocate memory from.
Units	Number of memory units to allocate.

Returns

The pointer to the allocated memory. If couldn't allocate the needed memory, the return value is NULL.

Definition at line 109 of file SdHcMem.c.

SdPeimFreeMem()

VOID SdPeimFreeMem	(	IN SD_PEIM_MEM_POOL *	Pool,
		IN VOID *	Mem,
		IN UINTN	Size
	)

Free the allocated memory back to the memory pool.

Parameters

Pool	The memory pool of the host controller.
Mem	The memory to free.
Size	The size of the memory to free.

Definition at line 366 of file SdHcMem.c.

SdPeimFreeMemBlock()

VOID SdPeimFreeMemBlock	(	IN SD_PEIM_MEM_POOL *	Pool,
		IN SD_PEIM_MEM_BLOCK *	Block
	)

Free the memory block from the memory pool.

Parameters

Pool	The memory pool to free the block from.
Block	The memory block to free.

Definition at line 88 of file SdHcMem.c.

SdPeimFreeMemPool()

EFI_STATUS SdPeimFreeMemPool

(

IN SD_PEIM_MEM_POOL *

Pool

)

Release the memory management pool.

Parameters

Pool	The memory pool to free.

Return values

EFI_DEVICE_ERROR	Fail to free the memory pool.
EFI_SUCCESS	The memory pool is freed.

Definition at line 263 of file SdHcMem.c.

SdPeimInitMemPool()

EFI_STATUS SdPeimInitMemPool

(

IN SD_PEIM_HC_PRIVATE_DATA *

Private

)

Initialize the memory management pool for the host controller.

Parameters

Private

The Sd Peim driver private data.

Return values

EFI_SUCCESS	The memory pool is initialized.
Others	Fail to init the memory pool.

Definition at line 223 of file SdHcMem.c.

SdPeimInsertMemBlockToPool()

VOID SdPeimInsertMemBlockToPool	(	IN SD_PEIM_MEM_BLOCK *	Head,
		IN SD_PEIM_MEM_BLOCK *	Block
	)

Insert the memory block to the pool's list of the blocks.

Parameters

Head	The head of the memory pool's block list.
Block	The memory block to insert.

Definition at line 178 of file SdHcMem.c.

SdPeimIsMemBlockEmpty()

BOOLEAN SdPeimIsMemBlockEmpty

(

IN SD_PEIM_MEM_BLOCK *

Block

)

Is the memory block empty?

Parameters

Block

The memory block to check.

Return values

TRUE	The memory block is empty.
FALSE	The memory block isn't empty.

Definition at line 198 of file SdHcMem.c.