1 //------------------------------------------------------------------------------
3 // Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
4 // Copyright (c) 2011 - 2014, ARM Limited. All rights reserved.
6 // This program and the accompanying materials
7 // are licensed and made available under the terms and conditions of the BSD License
8 // which accompanies this distribution. The full text of the license may be found at
9 // http://opensource.org/licenses/bsd-license.php
11 // THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
12 // WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
14 //------------------------------------------------------------------------------
16 #include <AsmMacroIoLib.h>
18 INCLUDE AsmMacroIoLib.inc
21 INCLUDE AsmMacroExport.inc
23 RVCT_ASM_EXPORT ArmReadMidr
27 RVCT_ASM_EXPORT ArmCacheInfo
31 RVCT_ASM_EXPORT ArmGetInterruptState
33 tst R0,#0x80 // Check if IRQ is enabled.
38 RVCT_ASM_EXPORT ArmGetFiqState
40 tst R0,#0x40 // Check if FIQ is enabled.
45 RVCT_ASM_EXPORT ArmSetDomainAccessControl
49 RVCT_ASM_EXPORT CPSRMaskInsert
50 stmfd sp!, {r4-r12, lr} // save all the banked registers
51 mov r3, sp // copy the stack pointer into a non-banked register
52 mrs r2, cpsr // read the cpsr
53 bic r2, r2, r0 // clear mask in the cpsr
54 and r1, r1, r0 // clear bits outside the mask in the input
55 orr r2, r2, r1 // set field
56 msr cpsr_cxsf, r2 // write back cpsr (may have caused a mode switch)
58 mov sp, r3 // restore stack pointer
59 ldmfd sp!, {r4-r12, lr} // restore registers
60 bx lr // return (hopefully thumb-safe!) // return (hopefully thumb-safe!)
62 RVCT_ASM_EXPORT CPSRRead
66 RVCT_ASM_EXPORT ArmReadCpacr
67 mrc p15, 0, r0, c1, c0, 2
70 RVCT_ASM_EXPORT ArmWriteCpacr
71 mcr p15, 0, r0, c1, c0, 2
75 RVCT_ASM_EXPORT ArmWriteAuxCr
76 mcr p15, 0, r0, c1, c0, 1
79 RVCT_ASM_EXPORT ArmReadAuxCr
80 mrc p15, 0, r0, c1, c0, 1
83 RVCT_ASM_EXPORT ArmSetTTBR0
88 RVCT_ASM_EXPORT ArmGetTTBR0BaseAddress
90 LoadConstantToReg(0xFFFFC000, r1)
97 //ArmUpdateTranslationTableEntry (
98 // IN VOID *TranslationTableEntry // R0
101 RVCT_ASM_EXPORT ArmUpdateTranslationTableEntry
102 mcr p15,0,R0,c7,c14,1 // DCCIMVAC Clean data cache by MVA
104 mcr p15,0,R1,c8,c7,1 // TLBIMVA TLB Invalidate MVA
105 mcr p15,0,R9,c7,c5,6 // BPIALL Invalidate Branch predictor array. R9 == NoOp
110 RVCT_ASM_EXPORT ArmInvalidateTlb
113 mcr p15,0,R9,c7,c5,6 // BPIALL Invalidate Branch predictor array. R9 == NoOp
118 RVCT_ASM_EXPORT ArmReadScr
119 mrc p15, 0, r0, c1, c1, 0
122 RVCT_ASM_EXPORT ArmWriteScr
123 mcr p15, 0, r0, c1, c1, 0
126 RVCT_ASM_EXPORT ArmReadHVBar
127 mrc p15, 4, r0, c12, c0, 0
130 RVCT_ASM_EXPORT ArmWriteHVBar
131 mcr p15, 4, r0, c12, c0, 0
134 RVCT_ASM_EXPORT ArmReadMVBar
135 mrc p15, 0, r0, c12, c0, 1
138 RVCT_ASM_EXPORT ArmWriteMVBar
139 mcr p15, 0, r0, c12, c0, 1
142 RVCT_ASM_EXPORT ArmCallWFE
146 RVCT_ASM_EXPORT ArmCallSEV
150 RVCT_ASM_EXPORT ArmReadSctlr
151 mrc p15, 0, r0, c1, c0, 0 // Read SCTLR into R0 (Read control register configuration data)
155 RVCT_ASM_EXPORT ArmReadCpuActlr
156 mrc p15, 0, r0, c1, c0, 1
159 RVCT_ASM_EXPORT ArmWriteCpuActlr
160 mcr p15, 0, r0, c1, c0, 1