72 lines
2.6 KiB
ArmAsm
72 lines
2.6 KiB
ArmAsm
/*
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* Copyright (c) 2015, ARM Limited and Contributors. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* Neither the name of ARM nor the names of its contributors may be used
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* to endorse or promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <arch.h>
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#include <asm_macros.S>
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#include <assert_macros.S>
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#include <platform_def.h>
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.globl plat_my_core_pos
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.globl plat_is_my_cpu_primary
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.globl plat_get_my_entrypoint
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.weak platform_get_core_pos
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/* -----------------------------------------------------
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* Compatibility wrappers for new platform APIs.
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* -----------------------------------------------------
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*/
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func plat_my_core_pos
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mrs x0, mpidr_el1
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b platform_get_core_pos
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endfunc plat_my_core_pos
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func plat_is_my_cpu_primary
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mrs x0, mpidr_el1
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b platform_is_primary_cpu
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endfunc plat_is_my_cpu_primary
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func plat_get_my_entrypoint
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mrs x0, mpidr_el1
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b platform_get_entrypoint
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endfunc plat_get_my_entrypoint
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/* -----------------------------------------------------
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* int platform_get_core_pos(int mpidr);
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* With this function: CorePos = (ClusterId * 4) +
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* CoreId
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* -----------------------------------------------------
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*/
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func platform_get_core_pos
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and x1, x0, #MPIDR_CPU_MASK
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and x0, x0, #MPIDR_CLUSTER_MASK
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add x0, x1, x0, LSR #6
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ret
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endfunc platform_get_core_pos
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