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s390/alternatives: Move text sync functions

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Move all text sync functions from alternative.c to processor.c. This
way there is only minimal code left in alternative.c left, which is a
prerequisite to use the C file within boot code as well.

Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com>
Tested-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
This commit is contained in:
Heiko Carstens 2024-07-16 13:50:51 +02:00 committed by Vasily Gorbik
parent c77f7354c4
commit ace76fac94
2 changed files with 19 additions and 21 deletions
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20
arch/s390/kernel/alternative.c
View File

@ -1,8 +1,5 @@
// SPDX-License-Identifier: GPL-2.0
#include <linux/module.h>
#include <linux/cpu.h>
#include <linux/smp.h>
#include <asm/text-patching.h>
#include <asm/alternative.h>
#include <asm/facility.h>
#include <asm/nospec-branch.h>
@ -32,20 +29,3 @@ void __init apply_alternative_instructions(void)
{
apply_alternatives(__alt_instructions, __alt_instructions_end);
}
static void do_sync_core(void *info)
{
sync_core();
}
void text_poke_sync(void)
{
on_each_cpu(do_sync_core, NULL, 1);
}
void text_poke_sync_lock(void)
{
cpus_read_lock();
text_poke_sync();
cpus_read_unlock();
}

20
arch/s390/kernel/processor.c
View File

@ -17,7 +17,8 @@
#include <linux/mm_types.h>
#include <linux/delay.h>
#include <linux/cpu.h>
#include <linux/smp.h>
#include <asm/text-patching.h>
#include <asm/diag.h>
#include <asm/facility.h>
#include <asm/elf.h>
@ -79,6 +80,23 @@ void notrace stop_machine_yield(const struct cpumask *cpumask)
}
}
static void do_sync_core(void *info)
{
sync_core();
}
void text_poke_sync(void)
{
on_each_cpu(do_sync_core, NULL, 1);
}
void text_poke_sync_lock(void)
{
cpus_read_lock();
text_poke_sync();
cpus_read_unlock();
}
/*
* cpu_init - initializes state that is per-CPU.
*/