mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-12-28 17:08:18 +01:00
58 lines
1.5 KiB
C
58 lines
1.5 KiB
C
/** @file
|
|
Flush the cache is required for most architectures while do capsule
|
|
update. It is not support at Runtime.
|
|
|
|
Copyright (c) 2018, Linaro, Ltd. All rights reserved.<BR>
|
|
Copyright (c) 2019, Intel Corporation. All rights reserved.<BR>
|
|
|
|
SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
|
|
**/
|
|
|
|
#include "CapsuleService.h"
|
|
|
|
#include <Library/CacheMaintenanceLib.h>
|
|
|
|
/**
|
|
Writes Back a range of data cache lines covering a set of capsules in memory.
|
|
|
|
Writes Back the data cache lines specified by ScatterGatherList.
|
|
|
|
@param ScatterGatherList Physical address of the data structure that
|
|
describes a set of capsules in memory
|
|
|
|
**/
|
|
VOID
|
|
CapsuleCacheWriteBack (
|
|
IN EFI_PHYSICAL_ADDRESS ScatterGatherList
|
|
)
|
|
{
|
|
EFI_CAPSULE_BLOCK_DESCRIPTOR *Desc;
|
|
|
|
if (!EfiAtRuntime ()) {
|
|
Desc = (EFI_CAPSULE_BLOCK_DESCRIPTOR *)(UINTN)ScatterGatherList;
|
|
do {
|
|
WriteBackDataCacheRange (
|
|
(VOID *)(UINTN)Desc,
|
|
(UINTN)sizeof (*Desc)
|
|
);
|
|
|
|
if (Desc->Length > 0) {
|
|
WriteBackDataCacheRange (
|
|
(VOID *)(UINTN)Desc->Union.DataBlock,
|
|
(UINTN)Desc->Length
|
|
);
|
|
Desc++;
|
|
} else if (Desc->Union.ContinuationPointer > 0) {
|
|
Desc = (EFI_CAPSULE_BLOCK_DESCRIPTOR *)(UINTN)Desc->Union.ContinuationPointer;
|
|
}
|
|
} while (Desc->Length > 0 || Desc->Union.ContinuationPointer > 0);
|
|
|
|
WriteBackDataCacheRange (
|
|
(VOID *)(UINTN)Desc,
|
|
(UINTN)sizeof (*Desc)
|
|
);
|
|
}
|
|
}
|
|
|