/* * 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 .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