linux_dsm_epyc7002/arch/arm/mach-prima2/headsmp.S
Arnd Bergmann 9cb0d1babf ARM: prima2: remove duplicate v7_invalidate_l1
Patch c08e20d "arm: Add v7_invalidate_l1 to cache-v7.S" added
a generic version of this function and removed all platform
specific versions, while 4898de3 "ARM: PRIMA2: add new SiRFmarco
SMP SoC infrastructures" added another one, leading to a link
error. I verified that the two are identical, so we can
just remove the one in mach-prima2.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2013-02-20 18:21:58 +01:00

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ArmAsm

/*
* Entry of the second core for CSR Marco dual-core SMP SoCs
*
* Copyright (c) 2012 Cambridge Silicon Radio Limited, a CSR plc group company.
*
* Licensed under GPLv2 or later.
*/
#include <linux/linkage.h>
#include <linux/init.h>
__CPUINIT
/*
* SIRFSOC specific entry point for secondary CPUs. This provides
* a "holding pen" into which all secondary cores are held until we're
* ready for them to initialise.
*/
ENTRY(sirfsoc_secondary_startup)
bl v7_invalidate_l1
mrc p15, 0, r0, c0, c0, 5
and r0, r0, #15
adr r4, 1f
ldmia r4, {r5, r6}
sub r4, r4, r5
add r6, r6, r4
pen: ldr r7, [r6]
cmp r7, r0
bne pen
/*
* we've been released from the holding pen: secondary_stack
* should now contain the SVC stack for this core
*/
b secondary_startup
ENDPROC(sirfsoc_secondary_startup)
.align
1: .long .
.long pen_release