/*
* Copyright (c) 2013-2014, ARM Limited and Contributors. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of ARM nor the names of its contributors may be used
* to endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <arch_helpers.h>
.globl read_vbar
.globl read_vbar_el1
.globl read_vbar_el2
.globl read_vbar_el3
.globl write_vbar
.globl write_vbar_el1
.globl write_vbar_el2
.globl write_vbar_el3
.globl read_sctlr
.globl read_sctlr_el1
.globl read_sctlr_el2
.globl read_sctlr_el3
.globl write_sctlr
.globl write_sctlr_el1
.globl write_sctlr_el2
.globl write_sctlr_el3
.globl read_actlr
.globl read_actlr_el1
.globl read_actlr_el2
.globl read_actlr_el3
.globl write_actlr
.globl write_actlr_el1
.globl write_actlr_el2
.globl write_actlr_el3
.globl read_esr
.globl read_esr_el1
.globl read_esr_el2
.globl read_esr_el3
.globl write_esr
.globl write_esr_el1
.globl write_esr_el2
.globl write_esr_el3
.globl read_afsr0
.globl read_afsr0_el1
.globl read_afsr0_el2
.globl read_afsr0_el3
.globl write_afsr0
.globl write_afsr0_el1
.globl write_afsr0_el2
.globl write_afsr0_el3
.globl read_afsr1
.globl read_afsr1_el1
.globl read_afsr1_el2
.globl read_afsr1_el3
.globl write_afsr1
.globl write_afsr1_el1
.globl write_afsr1_el2
.globl write_afsr1_el3
.globl read_far
.globl read_far_el1
.globl read_far_el2
.globl read_far_el3
.globl write_far
.globl write_far_el1
.globl write_far_el2
.globl write_far_el3
.globl read_mair
.globl read_mair_el1
.globl read_mair_el2
.globl read_mair_el3
.globl write_mair
.globl write_mair_el1
.globl write_mair_el2
.globl write_mair_el3
.globl read_amair
.globl read_amair_el1
.globl read_amair_el2
.globl read_amair_el3
.globl write_amair
.globl write_amair_el1
.globl write_amair_el2
.globl write_amair_el3
.globl read_rvbar
.globl read_rvbar_el1
.globl read_rvbar_el2
.globl read_rvbar_el3
.globl read_rmr
.globl read_rmr_el1
.globl read_rmr_el2
.globl read_rmr_el3
.globl write_rmr
.globl write_rmr_el1
.globl write_rmr_el2
.globl write_rmr_el3
.globl read_tcr
.globl read_tcr_el1
.globl read_tcr_el2
.globl read_tcr_el3
.globl write_tcr
.globl write_tcr_el1
.globl write_tcr_el2
.globl write_tcr_el3
.globl read_cptr
.globl read_cptr_el2
.globl read_cptr_el3
.globl write_cptr
.globl write_cptr_el2
.globl write_cptr_el3
.globl read_ttbr0
.globl read_ttbr0_el1
.globl read_ttbr0_el2
.globl read_ttbr0_el3
.globl write_ttbr0
.globl write_ttbr0_el1
.globl write_ttbr0_el2
.globl write_ttbr0_el3
.globl read_ttbr1
.globl read_ttbr1_el1
.globl read_ttbr1_el2
.globl write_ttbr1
.globl write_ttbr1_el1
.globl write_ttbr1_el2
.globl read_cpacr
.globl write_cpacr
.globl read_cntfrq
.globl write_cntfrq
.globl read_cpuectlr
.globl write_cpuectlr
.globl read_cnthctl_el2
.globl write_cnthctl_el2
.globl read_cntfrq_el0
.globl write_cntfrq_el0
.globl read_scr
.globl write_scr
.globl read_hcr
.globl write_hcr
.globl read_midr
.globl read_mpidr
.globl read_current_el
.globl read_id_pfr1_el1
.globl read_id_aa64pfr0_el1
#if SUPPORT_VFP
.globl enable_vfp
.globl read_fpexc
.globl write_fpexc
#endif
.section .text, "ax"
read_current_el:; .type read_current_el, %function
mrs x0, CurrentEl
ret
read_id_pfr1_el1:; .type read_id_pfr1_el1, %function
mrs x0, id_pfr1_el1
ret
read_id_aa64pfr0_el1:; .type read_id_aa64pfr0_el1, %function
mrs x0, id_aa64pfr0_el1
ret
/* -----------------------------------------------------
* VBAR accessors
* -----------------------------------------------------
*/
read_vbar:; .type read_vbar, %function
mrs x0, CurrentEl
cmp x0, #(MODE_EL1 << MODE_EL_SHIFT)
b.eq read_vbar_el1
cmp x0, #(MODE_EL2 << MODE_EL_SHIFT)
b.eq read_vbar_el2
cmp x0, #(MODE_EL3 << MODE_EL_SHIFT)
b.eq read_vbar_el3
read_vbar_el1:; .type read_vbar_el1, %function
mrs x0, vbar_el1
ret
read_vbar_el2:; .type read_vbar_el2, %function
mrs x0, vbar_el2
ret
read_vbar_el3:; .type read_vbar_el3, %function
mrs x0, vbar_el3
ret
write_vbar:; .type write_vbar, %function
mrs x1, CurrentEl
cmp x1, #(MODE_EL1 << MODE_EL_SHIFT)
b.eq write_vbar_el1
cmp x1, #(MODE_EL2 << MODE_EL_SHIFT)
b.eq write_vbar_el2
cmp x1, #(MODE_EL3 << MODE_EL_SHIFT)
b.eq write_vbar_el3
write_vbar_el1:; .type write_vbar_el1, %function
msr vbar_el1, x0
isb
ret
write_vbar_el2:; .type write_vbar_el2, %function
msr vbar_el2, x0
isb
ret
write_vbar_el3:; .type write_vbar_el3, %function
msr vbar_el3, x0
isb
ret
/* -----------------------------------------------------
* AFSR0 accessors
* -----------------------------------------------------
*/
read_afsr0:; .type read_afsr0, %function
mrs x0, CurrentEl
cmp x0, #(MODE_EL1 << MODE_EL_SHIFT)
b.eq read_afsr0_el1
cmp x0, #(MODE_EL2 << MODE_EL_SHIFT)
b.eq read_afsr0_el2
cmp x0, #(MODE_EL3 << MODE_EL_SHIFT)
b.eq read_afsr0_el3
read_afsr0_el1:; .type read_afsr0_el1, %function
mrs x0, afsr0_el1
ret
read_afsr0_el2:; .type read_afsr0_el2, %function
mrs x0, afsr0_el2
ret
read_afsr0_el3:; .type read_afsr0_el3, %function
mrs x0, afsr0_el3
ret
write_afsr0:; .type write_afsr0, %function
mrs x1, CurrentEl
cmp x1, #(MODE_EL1 << MODE_EL_SHIFT)
b.eq write_afsr0_el1
cmp x1, #(MODE_EL2 << MODE_EL_SHIFT)
b.eq write_afsr0_el2
cmp x1, #(MODE_EL3 << MODE_EL_SHIFT)
b.eq write_afsr0_el3
write_afsr0_el1:; .type write_afsr0_el1, %function
msr afsr0_el1, x0
isb
ret
write_afsr0_el2:; .type write_afsr0_el2, %function
msr afsr0_el2, x0
isb
ret
write_afsr0_el3:; .type write_afsr0_el3, %function
msr afsr0_el3, x0
isb
ret
/* -----------------------------------------------------
* FAR accessors
* -----------------------------------------------------
*/
read_far:; .type read_far, %function
mrs x0, CurrentEl
cmp x0, #(MODE_EL1 << MODE_EL_SHIFT)
b.eq read_far_el1
cmp x0, #(MODE_EL2 << MODE_EL_SHIFT)
b.eq read_far_el2
cmp x0, #(MODE_EL3 << MODE_EL_SHIFT)
b.eq read_far_el3
read_far_el1:; .type read_far_el1, %function
mrs x0, far_el1
ret
read_far_el2:; .type read_far_el2, %function
mrs x0, far_el2
ret
read_far_el3:; .type read_far_el3, %function
mrs x0, far_el3
ret
write_far:; .type write_far, %function
mrs x1, CurrentEl
cmp x1, #(MODE_EL1 << MODE_EL_SHIFT)
b.eq write_far_el1
cmp x1, #(MODE_EL2 << MODE_EL_SHIFT)
b.eq write_far_el2
cmp x1, #(MODE_EL3 << MODE_EL_SHIFT)
b.eq write_far_el3
write_far_el1:; .type write_far_el1, %function
msr far_el1, x0
isb
ret
write_far_el2:; .type write_far_el2, %function
msr far_el2, x0
isb
ret
write_far_el3:; .type write_far_el3, %function
msr far_el3, x0
isb
ret
/* -----------------------------------------------------
* MAIR accessors
* -----------------------------------------------------
*/
read_mair:; .type read_mair, %function
mrs x0, CurrentEl
cmp x0, #(MODE_EL1 << MODE_EL_SHIFT)
b.eq read_mair_el1
cmp x0, #(MODE_EL2 << MODE_EL_SHIFT)
b.eq read_mair_el2
cmp x0, #(MODE_EL3 << MODE_EL_SHIFT)
b.eq read_mair_el3
read_mair_el1:; .type read_mair_el1, %function
mrs x0, mair_el1
ret
read_mair_el2:; .type read_mair_el2, %function
mrs x0, mair_el2
ret
read_mair_el3:; .type read_mair_el3, %function
mrs x0, mair_el3
ret
write_mair:; .type write_mair, %function
mrs x1, CurrentEl
cmp x1, #(MODE_EL1 << MODE_EL_SHIFT)
b.eq write_mair_el1
cmp x1, #(MODE_EL2 << MODE_EL_SHIFT)
b.eq write_mair_el2
cmp x1, #(MODE_EL3 << MODE_EL_SHIFT)
b.eq write_mair_el3
write_mair_el1:; .type write_mair_el1, %function
msr mair_el1, x0
isb
ret
write_mair_el2:; .type write_mair_el2, %function
msr mair_el2, x0
isb
ret
write_mair_el3:; .type write_mair_el3, %function
msr mair_el3, x0
isb
ret
/* -----------------------------------------------------
* AMAIR accessors
* -----------------------------------------------------
*/
read_amair:; .type read_amair, %function
mrs x0, CurrentEl
cmp x0, #(MODE_EL1 << MODE_EL_SHIFT)
b.eq read_amair_el1
cmp x0, #(MODE_EL2 << MODE_EL_SHIFT)
b.eq read_amair_el2
cmp x0, #(MODE_EL3 << MODE_EL_SHIFT)
b.eq read_amair_el3
read_amair_el1:; .type read_amair_el1, %function
mrs x0, amair_el1
ret
read_amair_el2:; .type read_amair_el2, %function
mrs x0, amair_el2
ret
read_amair_el3:; .type read_amair_el3, %function
mrs x0, amair_el3
ret
write_amair:; .type write_amair, %function
mrs x1, CurrentEl
cmp x1, #(MODE_EL1 << MODE_EL_SHIFT)
b.eq write_amair_el1
cmp x1, #(MODE_EL2 << MODE_EL_SHIFT)
b.eq write_amair_el2
cmp x1, #(MODE_EL3 << MODE_EL_SHIFT)
b.eq write_amair_el3
write_amair_el1:; .type write_amair_el1, %function
msr amair_el1, x0
isb
ret
write_amair_el2:; .type write_amair_el2, %function
msr amair_el2, x0
isb
ret
write_amair_el3:; .type write_amair_el3, %function
msr amair_el3, x0
isb
ret
/* -----------------------------------------------------
* RVBAR accessors
* -----------------------------------------------------
*/
read_rvbar:; .type read_rvbar, %function
mrs x0, CurrentEl
cmp x0, #(MODE_EL1 << MODE_EL_SHIFT)
b.eq read_rvbar_el1
cmp x0, #(MODE_EL2 << MODE_EL_SHIFT)
b.eq read_rvbar_el2
cmp x0, #(MODE_EL3 << MODE_EL_SHIFT)
b.eq read_rvbar_el3
read_rvbar_el1:; .type read_rvbar_el1, %function
mrs x0, rvbar_el1
ret
read_rvbar_el2:; .type read_rvbar_el2, %function
mrs x0, rvbar_el2
ret
read_rvbar_el3:; .type read_rvbar_el3, %function
mrs x0, rvbar_el3
ret
/* -----------------------------------------------------
* RMR accessors
* -----------------------------------------------------
*/
read_rmr:; .type read_rmr, %function
mrs x0, CurrentEl
cmp x0, #(MODE_EL1 << MODE_EL_SHIFT)
b.eq read_rmr_el1
cmp x0, #(MODE_EL2 << MODE_EL_SHIFT)
b.eq read_rmr_el2
cmp x0, #(MODE_EL3 << MODE_EL_SHIFT)
b.eq read_rmr_el3
read_rmr_el1:; .type read_rmr_el1, %function
mrs x0, rmr_el1
ret
read_rmr_el2:; .type read_rmr_el2, %function
mrs x0, rmr_el2
ret
read_rmr_el3:; .type read_rmr_el3, %function
mrs x0, rmr_el3
ret
write_rmr:; .type write_rmr, %function
mrs x1, CurrentEl
cmp x1, #(MODE_EL1 << MODE_EL_SHIFT)
b.eq write_rmr_el1
cmp x1, #(MODE_EL2 << MODE_EL_SHIFT)
b.eq write_rmr_el2
cmp x1, #(MODE_EL3 << MODE_EL_SHIFT)
b.eq write_rmr_el3
write_rmr_el1:; .type write_rmr_el1, %function
msr rmr_el1, x0
isb
ret
write_rmr_el2:; .type write_rmr_el2, %function
msr rmr_el2, x0
isb
ret
write_rmr_el3:; .type write_rmr_el3, %function
msr rmr_el3, x0
isb
ret
read_afsr1:; .type read_afsr1, %function
mrs x0, CurrentEl
cmp x0, #(MODE_EL1 << MODE_EL_SHIFT)
b.eq read_afsr1_el1
cmp x0, #(MODE_EL2 << MODE_EL_SHIFT)
b.eq read_afsr1_el2
cmp x0, #(MODE_EL3 << MODE_EL_SHIFT)
b.eq read_afsr1_el3
/* -----------------------------------------------------
* AFSR1 accessors
* -----------------------------------------------------
*/
read_afsr1_el1:; .type read_afsr1_el1, %function
mrs x0, afsr1_el1
ret
read_afsr1_el2:; .type read_afsr1_el2, %function
mrs x0, afsr1_el2
ret
read_afsr1_el3:; .type read_afsr1_el3, %function
mrs x0, afsr1_el3
ret
write_afsr1:; .type write_afsr1, %function
mrs x1, CurrentEl
cmp x1, #(MODE_EL1 << MODE_EL_SHIFT)
b.eq write_afsr1_el1
cmp x1, #(MODE_EL2 << MODE_EL_SHIFT)
b.eq write_afsr1_el2
cmp x1, #(MODE_EL3 << MODE_EL_SHIFT)
b.eq write_afsr1_el3
write_afsr1_el1:; .type write_afsr1_el1, %function
msr afsr1_el1, x0
isb
ret
write_afsr1_el2:; .type write_afsr1_el2, %function
msr afsr1_el2, x0
isb
ret
write_afsr1_el3:; .type write_afsr1_el3, %function
msr afsr1_el3, x0
isb
ret
/* -----------------------------------------------------
* SCTLR accessors
* -----------------------------------------------------
*/
read_sctlr:; .type read_sctlr, %function
mrs x0, CurrentEl
cmp x0, #(MODE_EL1 << MODE_EL_SHIFT)
b.eq read_sctlr_el1
cmp x0, #(MODE_EL2 << MODE_EL_SHIFT)
b.eq read_sctlr_el2
cmp x0, #(MODE_EL3 << MODE_EL_SHIFT)
b.eq read_sctlr_el3
read_sctlr_el1:; .type read_sctlr_el1, %function
mrs x0, sctlr_el1
ret
read_sctlr_el2:; .type read_sctlr_el2, %function
mrs x0, sctlr_el2
ret
read_sctlr_el3:; .type read_sctlr_el3, %function
mrs x0, sctlr_el3
ret
write_sctlr:; .type write_sctlr, %function
mrs x1, CurrentEl
cmp x1, #(MODE_EL1 << MODE_EL_SHIFT)
b.eq write_sctlr_el1
cmp x1, #(MODE_EL2 << MODE_EL_SHIFT)
b.eq write_sctlr_el2
cmp x1, #(MODE_EL3 << MODE_EL_SHIFT)
b.eq write_sctlr_el3
write_sctlr_el1:; .type write_sctlr_el1, %function
msr sctlr_el1, x0
dsb sy
isb
ret
write_sctlr_el2:; .type write_sctlr_el2, %function
msr sctlr_el2, x0
dsb sy
isb
ret
write_sctlr_el3:; .type write_sctlr_el3, %function
msr sctlr_el3, x0
dsb sy
isb
ret
/* -----------------------------------------------------
* ACTLR accessors
* -----------------------------------------------------
*/
read_actlr:; .type read_actlr, %function
mrs x0, CurrentEl
cmp x0, #(MODE_EL1 << MODE_EL_SHIFT)
b.eq read_actlr_el1
cmp x0, #(MODE_EL2 << MODE_EL_SHIFT)
b.eq read_actlr_el2
cmp x0, #(MODE_EL3 << MODE_EL_SHIFT)
b.eq read_actlr_el3
read_actlr_el1:; .type read_actlr_el1, %function
mrs x0, actlr_el1
ret
read_actlr_el2:; .type read_actlr_el2, %function
mrs x0, actlr_el2
ret
read_actlr_el3:; .type read_actlr_el3, %function
mrs x0, actlr_el3
ret
write_actlr:; .type write_actlr, %function
mrs x1, CurrentEl
cmp x1, #(MODE_EL1 << MODE_EL_SHIFT)
b.eq write_actlr_el1
cmp x1, #(MODE_EL2 << MODE_EL_SHIFT)
b.eq write_actlr_el2
cmp x1, #(MODE_EL3 << MODE_EL_SHIFT)
b.eq write_actlr_el3
write_actlr_el1:; .type write_actlr_el1, %function
msr actlr_el1, x0
dsb sy
isb
ret
write_actlr_el2:; .type write_actlr_el2, %function
msr actlr_el2, x0
dsb sy
isb
ret
write_actlr_el3:; .type write_actlr_el3, %function
msr actlr_el3, x0
dsb sy
isb
ret
/* -----------------------------------------------------
* ESR accessors
* -----------------------------------------------------
*/
read_esr:; .type read_esr, %function
mrs x0, CurrentEl
cmp x0, #(MODE_EL1 << MODE_EL_SHIFT)
b.eq read_esr_el1
cmp x0, #(MODE_EL2 << MODE_EL_SHIFT)
b.eq read_esr_el2
cmp x0, #(MODE_EL3 << MODE_EL_SHIFT)
b.eq read_esr_el3
read_esr_el1:; .type read_esr_el1, %function
mrs x0, esr_el1
ret
read_esr_el2:; .type read_esr_el2, %function
mrs x0, esr_el2
ret
read_esr_el3:; .type read_esr_el3, %function
mrs x0, esr_el3
ret
write_esr:; .type write_esr, %function
mrs x1, CurrentEl
cmp x1, #(MODE_EL1 << MODE_EL_SHIFT)
b.eq write_esr_el1
cmp x1, #(MODE_EL2 << MODE_EL_SHIFT)
b.eq write_esr_el2
cmp x1, #(MODE_EL3 << MODE_EL_SHIFT)
b.eq write_esr_el3
write_esr_el1:; .type write_esr_el1, %function
msr esr_el1, x0
dsb sy
isb
ret
write_esr_el2:; .type write_esr_el2, %function
msr esr_el2, x0
dsb sy
isb
ret
write_esr_el3:; .type write_esr_el3, %function
msr esr_el3, x0
dsb sy
isb
ret
/* -----------------------------------------------------
* TCR accessors
* -----------------------------------------------------
*/
read_tcr:; .type read_tcr, %function
mrs x0, CurrentEl
cmp x0, #(MODE_EL1 << MODE_EL_SHIFT)
b.eq read_tcr_el1
cmp x0, #(MODE_EL2 << MODE_EL_SHIFT)
b.eq read_tcr_el2
cmp x0, #(MODE_EL3 << MODE_EL_SHIFT)
b.eq read_tcr_el3
read_tcr_el1:; .type read_tcr_el1, %function
mrs x0, tcr_el1
ret
read_tcr_el2:; .type read_tcr_el2, %function
mrs x0, tcr_el2
ret
read_tcr_el3:; .type read_tcr_el3, %function
mrs x0, tcr_el3
ret
write_tcr:; .type write_tcr, %function
mrs x1, CurrentEl
cmp x1, #(MODE_EL1 << MODE_EL_SHIFT)
b.eq write_tcr_el1
cmp x1, #(MODE_EL2 << MODE_EL_SHIFT)
b.eq write_tcr_el2
cmp x1, #(MODE_EL3 << MODE_EL_SHIFT)
b.eq write_tcr_el3
write_tcr_el1:; .type write_tcr_el1, %function
msr tcr_el1, x0
dsb sy
isb
ret
write_tcr_el2:; .type write_tcr_el2, %function
msr tcr_el2, x0
dsb sy
isb
ret
write_tcr_el3:; .type write_tcr_el3, %function
msr tcr_el3, x0
dsb sy
isb
ret
/* -----------------------------------------------------
* CPTR accessors
* -----------------------------------------------------
*/
read_cptr:; .type read_cptr, %function
mrs x0, CurrentEl
cmp x0, #(MODE_EL1 << MODE_EL_SHIFT)
b.eq read_cptr_el1
cmp x0, #(MODE_EL2 << MODE_EL_SHIFT)
b.eq read_cptr_el2
cmp x0, #(MODE_EL3 << MODE_EL_SHIFT)
b.eq read_cptr_el3
read_cptr_el1:; .type read_cptr_el1, %function
b read_cptr_el1
ret
read_cptr_el2:; .type read_cptr_el2, %function
mrs x0, cptr_el2
ret
read_cptr_el3:; .type read_cptr_el3, %function
mrs x0, cptr_el3
ret
write_cptr:; .type write_cptr, %function
mrs x1, CurrentEl
cmp x1, #(MODE_EL1 << MODE_EL_SHIFT)
b.eq write_cptr_el1
cmp x1, #(MODE_EL2 << MODE_EL_SHIFT)
b.eq write_cptr_el2
cmp x1, #(MODE_EL3 << MODE_EL_SHIFT)
b.eq write_cptr_el3
write_cptr_el1:; .type write_cptr_el1, %function
b write_cptr_el1
write_cptr_el2:; .type write_cptr_el2, %function
msr cptr_el2, x0
dsb sy
isb
ret
write_cptr_el3:; .type write_cptr_el3, %function
msr cptr_el3, x0
dsb sy
isb
ret
/* -----------------------------------------------------
* TTBR0 accessors
* -----------------------------------------------------
*/
read_ttbr0:; .type read_ttbr0, %function
mrs x0, CurrentEl
cmp x0, #(MODE_EL1 << MODE_EL_SHIFT)
b.eq read_ttbr0_el1
cmp x0, #(MODE_EL2 << MODE_EL_SHIFT)
b.eq read_ttbr0_el2
cmp x0, #(MODE_EL3 << MODE_EL_SHIFT)
b.eq read_ttbr0_el3
read_ttbr0_el1:; .type read_ttbr0_el1, %function
mrs x0, ttbr0_el1
ret
read_ttbr0_el2:; .type read_ttbr0_el2, %function
mrs x0, ttbr0_el2
ret
read_ttbr0_el3:; .type read_ttbr0_el3, %function
mrs x0, ttbr0_el3
ret
write_ttbr0:; .type write_ttbr0, %function
mrs x1, CurrentEl
cmp x1, #(MODE_EL1 << MODE_EL_SHIFT)
b.eq write_ttbr0_el1
cmp x1, #(MODE_EL2 << MODE_EL_SHIFT)
b.eq write_ttbr0_el2
cmp x1, #(MODE_EL3 << MODE_EL_SHIFT)
b.eq write_ttbr0_el3
write_ttbr0_el1:; .type write_ttbr0_el1, %function
msr ttbr0_el1, x0
isb
ret
write_ttbr0_el2:; .type write_ttbr0_el2, %function
msr ttbr0_el2, x0
isb
ret
write_ttbr0_el3:; .type write_ttbr0_el3, %function
msr ttbr0_el3, x0
isb
ret
/* -----------------------------------------------------
* TTBR1 accessors
* -----------------------------------------------------
*/
read_ttbr1:; .type read_ttbr1, %function
mrs x0, CurrentEl
cmp x0, #(MODE_EL1 << MODE_EL_SHIFT)
b.eq read_ttbr1_el1
cmp x0, #(MODE_EL2 << MODE_EL_SHIFT)
b.eq read_ttbr1_el2
cmp x0, #(MODE_EL3 << MODE_EL_SHIFT)
b.eq read_ttbr1_el3
read_ttbr1_el1:; .type read_ttbr1_el1, %function
mrs x0, ttbr1_el1
ret
read_ttbr1_el2:; .type read_ttbr1_el2, %function
b read_ttbr1_el2
read_ttbr1_el3:; .type read_ttbr1_el3, %function
b read_ttbr1_el3
write_ttbr1:; .type write_ttbr1, %function
mrs x1, CurrentEl
cmp x1, #(MODE_EL1 << MODE_EL_SHIFT)
b.eq write_ttbr1_el1
cmp x1, #(MODE_EL2 << MODE_EL_SHIFT)
b.eq write_ttbr1_el2
cmp x1, #(MODE_EL3 << MODE_EL_SHIFT)
b.eq write_ttbr1_el3
write_ttbr1_el1:; .type write_ttbr1_el1, %function
msr ttbr1_el1, x0
isb
ret
write_ttbr1_el2:; .type write_ttbr1_el2, %function
b write_ttbr1_el2
write_ttbr1_el3:; .type write_ttbr1_el3, %function
b write_ttbr1_el3
read_hcr:; .type read_hcr, %function
mrs x0, hcr_el2
ret
write_hcr:; .type write_hcr, %function
msr hcr_el2, x0
dsb sy
isb
ret
read_cpacr:; .type read_cpacr, %function
mrs x0, cpacr_el1
ret
write_cpacr:; .type write_cpacr, %function
msr cpacr_el1, x0
ret
read_cntfrq_el0:; .type read_cntfrq_el0, %function
mrs x0, cntfrq_el0
ret
write_cntfrq_el0:; .type write_cntfrq_el0, %function
msr cntfrq_el0, x0
ret
read_cpuectlr:; .type read_cpuectlr, %function
mrs x0, CPUECTLR_EL1
ret
write_cpuectlr:; .type write_cpuectlr, %function
msr CPUECTLR_EL1, x0
dsb sy
isb
ret
read_cnthctl_el2:; .type read_cnthctl_el2, %function
mrs x0, cnthctl_el2
ret
write_cnthctl_el2:; .type write_cnthctl_el2, %function
msr cnthctl_el2, x0
ret
read_cntfrq:; .type read_cntfrq, %function
mrs x0, cntfrq_el0
ret
write_cntfrq:; .type write_cntfrq, %function
msr cntfrq_el0, x0
ret
write_scr:; .type write_scr, %function
msr scr_el3, x0
dsb sy
isb
ret
read_scr:; .type read_scr, %function
mrs x0, scr_el3
ret
read_midr:; .type read_midr, %function
mrs x0, midr_el1
ret
read_mpidr:; .type read_mpidr, %function
mrs x0, mpidr_el1
ret
#if SUPPORT_VFP
enable_vfp:; .type enable_vfp, %function
mrs x0, cpacr_el1
orr x0, x0, #CPACR_VFP_BITS
msr cpacr_el1, x0
mrs x0, cptr_el3
mov x1, #AARCH64_CPTR_TFP
bic x0, x0, x1
msr cptr_el3, x0
ret
// int read_fpexc(void)
read_fpexc:; .type read_fpexc, %function
b read_fpexc
ret
// void write_fpexc(int fpexc)
write_fpexc:; .type write_fpexc, %function
b write_fpexc
ret
#endif
