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- /*
- * 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>
- #include <asm_macros.S>
- .globl read_vbar_el1
- .globl read_vbar_el2
- .globl read_vbar_el3
- .globl write_vbar_el1
- .globl write_vbar_el2
- .globl write_vbar_el3
- .globl read_sctlr_el1
- .globl read_sctlr_el2
- .globl read_sctlr_el3
- .globl write_sctlr_el1
- .globl write_sctlr_el2
- .globl write_sctlr_el3
- .globl read_actlr_el1
- .globl read_actlr_el2
- .globl read_actlr_el3
- .globl write_actlr_el1
- .globl write_actlr_el2
- .globl write_actlr_el3
- .globl read_esr_el1
- .globl read_esr_el2
- .globl read_esr_el3
- .globl write_esr_el1
- .globl write_esr_el2
- .globl write_esr_el3
- .globl read_afsr0_el1
- .globl read_afsr0_el2
- .globl read_afsr0_el3
- .globl write_afsr0_el1
- .globl write_afsr0_el2
- .globl write_afsr0_el3
- .globl read_afsr1_el1
- .globl read_afsr1_el2
- .globl read_afsr1_el3
- .globl write_afsr1_el1
- .globl write_afsr1_el2
- .globl write_afsr1_el3
- .globl read_far_el1
- .globl read_far_el2
- .globl read_far_el3
- .globl write_far_el1
- .globl write_far_el2
- .globl write_far_el3
- .globl read_mair_el1
- .globl read_mair_el2
- .globl read_mair_el3
- .globl write_mair_el1
- .globl write_mair_el2
- .globl write_mair_el3
- .globl read_amair_el1
- .globl read_amair_el2
- .globl read_amair_el3
- .globl write_amair_el1
- .globl write_amair_el2
- .globl write_amair_el3
- .globl read_rvbar_el1
- .globl read_rvbar_el2
- .globl read_rvbar_el3
- .globl read_rmr_el1
- .globl read_rmr_el2
- .globl read_rmr_el3
- .globl write_rmr_el1
- .globl write_rmr_el2
- .globl write_rmr_el3
- .globl read_tcr_el1
- .globl read_tcr_el2
- .globl read_tcr_el3
- .globl write_tcr_el1
- .globl write_tcr_el2
- .globl write_tcr_el3
- .globl read_cptr_el2
- .globl read_cptr_el3
- .globl write_cptr_el2
- .globl write_cptr_el3
- .globl read_ttbr0_el1
- .globl read_ttbr0_el2
- .globl read_ttbr0_el3
- .globl write_ttbr0_el1
- .globl write_ttbr0_el2
- .globl write_ttbr0_el3
- .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
- func read_current_el
- mrs x0, CurrentEl
- ret
- func read_id_pfr1_el1
- mrs x0, id_pfr1_el1
- ret
- func read_id_aa64pfr0_el1
- mrs x0, id_aa64pfr0_el1
- ret
- /* -----------------------------------------------------
- * VBAR accessors
- * -----------------------------------------------------
- */
- func read_vbar_el1
- mrs x0, vbar_el1
- ret
- func read_vbar_el2
- mrs x0, vbar_el2
- ret
- func read_vbar_el3
- mrs x0, vbar_el3
- ret
- func write_vbar_el1
- msr vbar_el1, x0
- isb
- ret
- func write_vbar_el2
- msr vbar_el2, x0
- isb
- ret
- func write_vbar_el3
- msr vbar_el3, x0
- isb
- ret
- /* -----------------------------------------------------
- * AFSR0 accessors
- * -----------------------------------------------------
- */
- func read_afsr0_el1
- mrs x0, afsr0_el1
- ret
- func read_afsr0_el2
- mrs x0, afsr0_el2
- ret
- func read_afsr0_el3
- mrs x0, afsr0_el3
- ret
- func write_afsr0_el1
- msr afsr0_el1, x0
- isb
- ret
- func write_afsr0_el2
- msr afsr0_el2, x0
- isb
- ret
- func write_afsr0_el3
- msr afsr0_el3, x0
- isb
- ret
- /* -----------------------------------------------------
- * FAR accessors
- * -----------------------------------------------------
- */
- func read_far_el1
- mrs x0, far_el1
- ret
- func read_far_el2
- mrs x0, far_el2
- ret
- func read_far_el3
- mrs x0, far_el3
- ret
- func write_far_el1
- msr far_el1, x0
- isb
- ret
- func write_far_el2
- msr far_el2, x0
- isb
- ret
- func write_far_el3
- msr far_el3, x0
- isb
- ret
- /* -----------------------------------------------------
- * MAIR accessors
- * -----------------------------------------------------
- */
- func read_mair_el1
- mrs x0, mair_el1
- ret
- func read_mair_el2
- mrs x0, mair_el2
- ret
- func read_mair_el3
- mrs x0, mair_el3
- ret
- func write_mair_el1
- msr mair_el1, x0
- isb
- ret
- func write_mair_el2
- msr mair_el2, x0
- isb
- ret
- func write_mair_el3
- msr mair_el3, x0
- isb
- ret
- /* -----------------------------------------------------
- * AMAIR accessors
- * -----------------------------------------------------
- */
- func read_amair_el1
- mrs x0, amair_el1
- ret
- func read_amair_el2
- mrs x0, amair_el2
- ret
- func read_amair_el3
- mrs x0, amair_el3
- ret
- func write_amair_el1
- msr amair_el1, x0
- isb
- ret
- func write_amair_el2
- msr amair_el2, x0
- isb
- ret
- func write_amair_el3
- msr amair_el3, x0
- isb
- ret
- /* -----------------------------------------------------
- * RVBAR accessors
- * -----------------------------------------------------
- */
- func read_rvbar_el1
- mrs x0, rvbar_el1
- ret
- func read_rvbar_el2
- mrs x0, rvbar_el2
- ret
- func read_rvbar_el3
- mrs x0, rvbar_el3
- ret
- /* -----------------------------------------------------
- * RMR accessors
- * -----------------------------------------------------
- */
- func read_rmr_el1
- mrs x0, rmr_el1
- ret
- func read_rmr_el2
- mrs x0, rmr_el2
- ret
- func read_rmr_el3
- mrs x0, rmr_el3
- ret
- func write_rmr_el1
- msr rmr_el1, x0
- isb
- ret
- func write_rmr_el2
- msr rmr_el2, x0
- isb
- ret
- func write_rmr_el3
- msr rmr_el3, x0
- isb
- ret
- /* -----------------------------------------------------
- * AFSR1 accessors
- * -----------------------------------------------------
- */
- func read_afsr1_el1
- mrs x0, afsr1_el1
- ret
- func read_afsr1_el2
- mrs x0, afsr1_el2
- ret
- func read_afsr1_el3
- mrs x0, afsr1_el3
- ret
- func write_afsr1_el1
- msr afsr1_el1, x0
- isb
- ret
- func write_afsr1_el2
- msr afsr1_el2, x0
- isb
- ret
- func write_afsr1_el3
- msr afsr1_el3, x0
- isb
- ret
- /* -----------------------------------------------------
- * SCTLR accessors
- * -----------------------------------------------------
- */
- func read_sctlr_el1
- mrs x0, sctlr_el1
- ret
- func read_sctlr_el2
- mrs x0, sctlr_el2
- ret
- func read_sctlr_el3
- mrs x0, sctlr_el3
- ret
- func write_sctlr_el1
- msr sctlr_el1, x0
- dsb sy
- isb
- ret
- func write_sctlr_el2
- msr sctlr_el2, x0
- dsb sy
- isb
- ret
- func write_sctlr_el3
- msr sctlr_el3, x0
- dsb sy
- isb
- ret
- /* -----------------------------------------------------
- * ACTLR accessors
- * -----------------------------------------------------
- */
- func read_actlr_el1
- mrs x0, actlr_el1
- ret
- func read_actlr_el2
- mrs x0, actlr_el2
- ret
- func read_actlr_el3
- mrs x0, actlr_el3
- ret
- func write_actlr_el1
- msr actlr_el1, x0
- dsb sy
- isb
- ret
- func write_actlr_el2
- msr actlr_el2, x0
- dsb sy
- isb
- ret
- func write_actlr_el3
- msr actlr_el3, x0
- dsb sy
- isb
- ret
- /* -----------------------------------------------------
- * ESR accessors
- * -----------------------------------------------------
- */
- func read_esr_el1
- mrs x0, esr_el1
- ret
- func read_esr_el2
- mrs x0, esr_el2
- ret
- func read_esr_el3
- mrs x0, esr_el3
- ret
- func write_esr_el1
- msr esr_el1, x0
- dsb sy
- isb
- ret
- func write_esr_el2
- msr esr_el2, x0
- dsb sy
- isb
- ret
- func write_esr_el3
- msr esr_el3, x0
- dsb sy
- isb
- ret
- /* -----------------------------------------------------
- * TCR accessors
- * -----------------------------------------------------
- */
- func read_tcr_el1
- mrs x0, tcr_el1
- ret
- func read_tcr_el2
- mrs x0, tcr_el2
- ret
- func read_tcr_el3
- mrs x0, tcr_el3
- ret
- func write_tcr_el1
- msr tcr_el1, x0
- dsb sy
- isb
- ret
- func write_tcr_el2
- msr tcr_el2, x0
- dsb sy
- isb
- ret
- func write_tcr_el3
- msr tcr_el3, x0
- dsb sy
- isb
- ret
- /* -----------------------------------------------------
- * CPTR accessors
- * -----------------------------------------------------
- */
- func read_cptr_el1
- b read_cptr_el1
- ret
- func read_cptr_el2
- mrs x0, cptr_el2
- ret
- func read_cptr_el3
- mrs x0, cptr_el3
- ret
- func write_cptr_el1
- b write_cptr_el1
- func write_cptr_el2
- msr cptr_el2, x0
- dsb sy
- isb
- ret
- func write_cptr_el3
- msr cptr_el3, x0
- dsb sy
- isb
- ret
- /* -----------------------------------------------------
- * TTBR0 accessors
- * -----------------------------------------------------
- */
- func read_ttbr0_el1
- mrs x0, ttbr0_el1
- ret
- func read_ttbr0_el2
- mrs x0, ttbr0_el2
- ret
- func read_ttbr0_el3
- mrs x0, ttbr0_el3
- ret
- func write_ttbr0_el1
- msr ttbr0_el1, x0
- isb
- ret
- func write_ttbr0_el2
- msr ttbr0_el2, x0
- isb
- ret
- func write_ttbr0_el3
- msr ttbr0_el3, x0
- isb
- ret
- /* -----------------------------------------------------
- * TTBR1 accessors
- * -----------------------------------------------------
- */
- func read_ttbr1_el1
- mrs x0, ttbr1_el1
- ret
- func read_ttbr1_el2
- b read_ttbr1_el2
- func read_ttbr1_el3
- b read_ttbr1_el3
- func write_ttbr1_el1
- msr ttbr1_el1, x0
- isb
- ret
- func write_ttbr1_el2
- b write_ttbr1_el2
- func write_ttbr1_el3
- b write_ttbr1_el3
- func read_hcr
- mrs x0, hcr_el2
- ret
- func write_hcr
- msr hcr_el2, x0
- dsb sy
- isb
- ret
- func read_cpacr
- mrs x0, cpacr_el1
- ret
- func write_cpacr
- msr cpacr_el1, x0
- ret
- func read_cntfrq_el0
- mrs x0, cntfrq_el0
- ret
- func write_cntfrq_el0
- msr cntfrq_el0, x0
- ret
- func read_cpuectlr
- mrs x0, CPUECTLR_EL1
- ret
- func write_cpuectlr
- msr CPUECTLR_EL1, x0
- dsb sy
- isb
- ret
- func read_cnthctl_el2
- mrs x0, cnthctl_el2
- ret
- func write_cnthctl_el2
- msr cnthctl_el2, x0
- ret
- func read_cntfrq
- mrs x0, cntfrq_el0
- ret
- func write_cntfrq
- msr cntfrq_el0, x0
- ret
- func write_scr
- msr scr_el3, x0
- dsb sy
- isb
- ret
- func read_scr
- mrs x0, scr_el3
- ret
- func read_midr
- mrs x0, midr_el1
- ret
- func read_mpidr
- mrs x0, mpidr_el1
- ret
- #if SUPPORT_VFP
- func enable_vfp
- 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
- func read_fpexc
- b read_fpexc
- ret
- func write_fpexc
- b write_fpexc
- ret
- #endif
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