From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:27:49 +0200 Subject: Adding upstream version 6.6.15. Signed-off-by: Daniel Baumann --- arch/arm/mach-shmobile/platsmp.c | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 arch/arm/mach-shmobile/platsmp.c (limited to 'arch/arm/mach-shmobile/platsmp.c') diff --git a/arch/arm/mach-shmobile/platsmp.c b/arch/arm/mach-shmobile/platsmp.c new file mode 100644 index 0000000000..7437c01513 --- /dev/null +++ b/arch/arm/mach-shmobile/platsmp.c @@ -0,0 +1,35 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * SMP support for R-Mobile / SH-Mobile + * + * Copyright (C) 2010 Magnus Damm + * Copyright (C) 2011 Paul Mundt + * + * Based on vexpress, Copyright (C) 2002 ARM Ltd, All Rights Reserved + */ +#include +#include +#include +#include "common.h" + +extern unsigned long shmobile_smp_fn[]; +extern unsigned long shmobile_smp_arg[]; +extern unsigned long shmobile_smp_mpidr[]; + +void shmobile_smp_hook(unsigned int cpu, unsigned long fn, unsigned long arg) +{ + shmobile_smp_fn[cpu] = 0; + flush_cache_all(); + + shmobile_smp_mpidr[cpu] = cpu_logical_map(cpu); + shmobile_smp_fn[cpu] = fn; + shmobile_smp_arg[cpu] = arg; + flush_cache_all(); +} + +#ifdef CONFIG_HOTPLUG_CPU +bool shmobile_smp_cpu_can_disable(unsigned int cpu) +{ + return true; /* Hotplug of any CPU is supported */ +} +#endif -- cgit v1.2.3