mirror of https://gitee.com/openkylin/linux.git
40 lines
840 B
ArmAsm
40 lines
840 B
ArmAsm
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Cloned from linux/arch/arm/mach-realview/headsmp.S
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*
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* Copyright (c) 2003 ARM Limited
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* All Rights Reserved
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*/
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#include <linux/linkage.h>
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#include <linux/init.h>
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#include <asm/assembler.h>
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/*
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* exynos4 specific entry point for secondary CPUs. This provides
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* a "holding pen" into which all secondary cores are held until we're
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* ready for them to initialise.
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*/
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ENTRY(exynos4_secondary_startup)
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ARM_BE8(setend be)
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mrc p15, 0, r0, c0, c0, 5
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and r0, r0, #15
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adr r4, 1f
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ldmia r4, {r5, r6}
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sub r4, r4, r5
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add r6, r6, r4
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pen: ldr r7, [r6]
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cmp r7, r0
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bne pen
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/*
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* we've been released from the holding pen: secondary_stack
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* should now contain the SVC stack for this core
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*/
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b secondary_startup
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ENDPROC(exynos4_secondary_startup)
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.align 2
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1: .long .
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.long pen_release
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