blob: 30849564fc725cd801db2ef8c22e95cf22378fa3 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
|
/** @file
Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
Copyright (c) 2011 - 2021, ARM Ltd. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include <Base.h>
#include <Library/ArmLib.h>
#include "ArmLibPrivate.h"
VOID
EFIAPI
ArmSetAuxCrBit (
IN UINT32 Bits
)
{
ArmWriteAuxCr (ArmReadAuxCr () | Bits);
}
VOID
EFIAPI
ArmUnsetAuxCrBit (
IN UINT32 Bits
)
{
ArmWriteAuxCr (ArmReadAuxCr () & ~Bits);
}
//
// Helper functions for accessing CPUACTLR
//
VOID
EFIAPI
ArmSetCpuActlrBit (
IN UINTN Bits
)
{
ArmWriteCpuActlr (ArmReadCpuActlr () | Bits);
}
VOID
EFIAPI
ArmUnsetCpuActlrBit (
IN UINTN Bits
)
{
ArmWriteCpuActlr (ArmReadCpuActlr () & ~Bits);
}
UINTN
EFIAPI
ArmDataCacheLineLength (
VOID
)
{
return 4 << ((ArmCacheInfo () >> 16) & 0xf); // CTR_EL0.DminLine
}
UINTN
EFIAPI
ArmInstructionCacheLineLength (
VOID
)
{
return 4 << (ArmCacheInfo () & 0xf); // CTR_EL0.IminLine
}
UINTN
EFIAPI
ArmCacheWritebackGranule (
VOID
)
{
UINTN CWG;
CWG = (ArmCacheInfo () >> 24) & 0xf; // CTR_EL0.CWG
if (CWG == 0) {
return SIZE_2KB;
}
return 4 << CWG;
}
|
