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// Copyright 2019 The gVisor Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "funcdata.h"
#include "textflag.h"
#define TLBI_ASID_SHIFT 48
TEXT ·FlushTlbByVA(SB),NOSPLIT,$0-8
MOVD addr+0(FP), R1
DSB $10 // dsb(ishst)
WORD $0xd50883a1 // tlbi vale1is, x1
DSB $11 // dsb(ish)
RET
TEXT ·FlushTlbByASID(SB),NOSPLIT,$0-8
MOVD asid+0(FP), R1
LSL $TLBI_ASID_SHIFT, R1, R1
DSB $10 // dsb(ishst)
WORD $0xd5088341 // tlbi aside1is, x1
DSB $11 // dsb(ish)
RET
TEXT ·LocalFlushTlbByASID(SB),NOSPLIT,$0-8
MOVD asid+0(FP), R1
LSL $TLBI_ASID_SHIFT, R1, R1
DSB $10 // dsb(ishst)
WORD $0xd5088741 // tlbi aside1, x1
DSB $11 // dsb(ish)
RET
TEXT ·LocalFlushTlbAll(SB),NOSPLIT,$0
DSB $6 // dsb(nshst)
WORD $0xd508871f // __tlbi(vmalle1)
DSB $7 // dsb(nsh)
ISB $15
RET
TEXT ·FlushTlbAll(SB),NOSPLIT,$0
DSB $10 // dsb(ishst)
WORD $0xd508831f // __tlbi(vmalle1is)
DSB $11 // dsb(ish)
ISB $15
RET
TEXT ·CPACREL1(SB),NOSPLIT,$0-8
WORD $0xd5381041 // MRS CPACR_EL1, R1
MOVD R1, value+0(FP)
RET
TEXT ·GetFPCR(SB),NOSPLIT,$0-8
MOVD FPCR, R1
MOVD R1, value+0(FP)
RET
TEXT ·GetFPSR(SB),NOSPLIT,$0-8
MOVD FPSR, R1
MOVD R1, value+0(FP)
RET
TEXT ·SetFPCR(SB),NOSPLIT,$0-8
MOVD value+0(FP), R1
MOVD R1, FPCR
RET
TEXT ·SetFPSR(SB),NOSPLIT,$0-8
MOVD value+0(FP), R1
MOVD R1, FPSR
RET
TEXT ·SaveVRegs(SB),NOSPLIT,$0-8
MOVD arg+0(FP), R0
// Skip aarch64_ctx, fpsr, fpcr.
ADD $16, R0, R0
WORD $0xad000400 // stp q0, q1, [x0]
WORD $0xad010c02 // stp q2, q3, [x0, #32]
WORD $0xad021404 // stp q4, q5, [x0, #64]
WORD $0xad031c06 // stp q6, q7, [x0, #96]
WORD $0xad042408 // stp q8, q9, [x0, #128]
WORD $0xad052c0a // stp q10, q11, [x0, #160]
WORD $0xad06340c // stp q12, q13, [x0, #192]
WORD $0xad073c0e // stp q14, q15, [x0, #224]
WORD $0xad084410 // stp q16, q17, [x0, #256]
WORD $0xad094c12 // stp q18, q19, [x0, #288]
WORD $0xad0a5414 // stp q20, q21, [x0, #320]
WORD $0xad0b5c16 // stp q22, q23, [x0, #352]
WORD $0xad0c6418 // stp q24, q25, [x0, #384]
WORD $0xad0d6c1a // stp q26, q27, [x0, #416]
WORD $0xad0e741c // stp q28, q29, [x0, #448]
WORD $0xad0f7c1e // stp q30, q31, [x0, #480]
RET
TEXT ·LoadVRegs(SB),NOSPLIT,$0-8
MOVD arg+0(FP), R0
// Skip aarch64_ctx, fpsr, fpcr.
ADD $16, R0, R0
WORD $0xad400400 // ldp q0, q1, [x0]
WORD $0xad410c02 // ldp q2, q3, [x0, #32]
WORD $0xad421404 // ldp q4, q5, [x0, #64]
WORD $0xad431c06 // ldp q6, q7, [x0, #96]
WORD $0xad442408 // ldp q8, q9, [x0, #128]
WORD $0xad452c0a // ldp q10, q11, [x0, #160]
WORD $0xad46340c // ldp q12, q13, [x0, #192]
WORD $0xad473c0e // ldp q14, q15, [x0, #224]
WORD $0xad484410 // ldp q16, q17, [x0, #256]
WORD $0xad494c12 // ldp q18, q19, [x0, #288]
WORD $0xad4a5414 // ldp q20, q21, [x0, #320]
WORD $0xad4b5c16 // ldp q22, q23, [x0, #352]
WORD $0xad4c6418 // ldp q24, q25, [x0, #384]
WORD $0xad4d6c1a // ldp q26, q27, [x0, #416]
WORD $0xad4e741c // ldp q28, q29, [x0, #448]
WORD $0xad4f7c1e // ldp q30, q31, [x0, #480]
RET
TEXT ·LoadFloatingPoint(SB),NOSPLIT,$0-8
MOVD arg+0(FP), R0
MOVD 0(R0), R1
MOVD R1, FPSR
MOVD 8(R0), R1
MOVD R1, FPCR
ADD $16, R0, R0
WORD $0xad400400 // ldp q0, q1, [x0]
WORD $0xad410c02 // ldp q2, q3, [x0, #32]
WORD $0xad421404 // ldp q4, q5, [x0, #64]
WORD $0xad431c06 // ldp q6, q7, [x0, #96]
WORD $0xad442408 // ldp q8, q9, [x0, #128]
WORD $0xad452c0a // ldp q10, q11, [x0, #160]
WORD $0xad46340c // ldp q12, q13, [x0, #192]
WORD $0xad473c0e // ldp q14, q15, [x0, #224]
WORD $0xad484410 // ldp q16, q17, [x0, #256]
WORD $0xad494c12 // ldp q18, q19, [x0, #288]
WORD $0xad4a5414 // ldp q20, q21, [x0, #320]
WORD $0xad4b5c16 // ldp q22, q23, [x0, #352]
WORD $0xad4c6418 // ldp q24, q25, [x0, #384]
WORD $0xad4d6c1a // ldp q26, q27, [x0, #416]
WORD $0xad4e741c // ldp q28, q29, [x0, #448]
WORD $0xad4f7c1e // ldp q30, q31, [x0, #480]
RET
TEXT ·SaveFloatingPoint(SB),NOSPLIT,$0-8
MOVD arg+0(FP), R0
MOVD FPSR, R1
MOVD R1, 0(R0)
MOVD FPCR, R1
MOVD R1, 8(R0)
ADD $16, R0, R0
WORD $0xad000400 // stp q0, q1, [x0]
WORD $0xad010c02 // stp q2, q3, [x0, #32]
WORD $0xad021404 // stp q4, q5, [x0, #64]
WORD $0xad031c06 // stp q6, q7, [x0, #96]
WORD $0xad042408 // stp q8, q9, [x0, #128]
WORD $0xad052c0a // stp q10, q11, [x0, #160]
WORD $0xad06340c // stp q12, q13, [x0, #192]
WORD $0xad073c0e // stp q14, q15, [x0, #224]
WORD $0xad084410 // stp q16, q17, [x0, #256]
WORD $0xad094c12 // stp q18, q19, [x0, #288]
WORD $0xad0a5414 // stp q20, q21, [x0, #320]
WORD $0xad0b5c16 // stp q22, q23, [x0, #352]
WORD $0xad0c6418 // stp q24, q25, [x0, #384]
WORD $0xad0d6c1a // stp q26, q27, [x0, #416]
WORD $0xad0e741c // stp q28, q29, [x0, #448]
WORD $0xad0f7c1e // stp q30, q31, [x0, #480]
RET
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