diff options
Diffstat (limited to 'arch/hexagon/kernel/smp.c')
| -rw-r--r-- | arch/hexagon/kernel/smp.c | 52 |
1 files changed, 15 insertions, 37 deletions
diff --git a/arch/hexagon/kernel/smp.c b/arch/hexagon/kernel/smp.c index 5dbc15549e01..65e1fdf9fdb2 100644 --- a/arch/hexagon/kernel/smp.c +++ b/arch/hexagon/kernel/smp.c @@ -1,21 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * SMP support for Hexagon * * Copyright (c) 2010-2012, The Linux Foundation. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 and - * only version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. */ #include <linux/err.h> @@ -92,7 +79,7 @@ void smp_vm_unmask_irq(void *info) * Specifically, first arg is irq, second is the irq_desc. */ -irqreturn_t handle_ipi(int irq, void *desc) +static irqreturn_t handle_ipi(int irq, void *desc) { int cpu = smp_processor_id(); struct ipi_data *ipi = &per_cpu(ipi_data, cpu); @@ -127,26 +114,16 @@ void send_ipi(const struct cpumask *cpumask, enum ipi_message_type msg) local_irq_restore(flags); } -static struct irqaction ipi_intdesc = { - .handler = handle_ipi, - .flags = IRQF_TRIGGER_RISING, - .name = "ipi_handler" -}; - -void __init smp_prepare_boot_cpu(void) -{ -} - /* * interrupts should already be disabled from the VM * SP should already be correct; need to set THREADINFO_REG * to point to current thread info */ -void start_secondary(void) +static void start_secondary(void) { - unsigned int cpu; unsigned long thread_ptr; + unsigned int cpu, irq; /* Calculate thread_info pointer from stack pointer */ __asm__ __volatile__( @@ -168,7 +145,10 @@ void start_secondary(void) cpu = smp_processor_id(); - setup_irq(BASE_IPI_IRQ + cpu, &ipi_intdesc); + irq = BASE_IPI_IRQ + cpu; + if (request_irq(irq, handle_ipi, IRQF_TRIGGER_RISING, "ipi_handler", + NULL)) + pr_err("Failed to request irq %u (ipi_handler)\n", irq); /* Register the clock_event dummy */ setup_percpu_clockdev(); @@ -214,7 +194,7 @@ void __init smp_cpus_done(unsigned int max_cpus) void __init smp_prepare_cpus(unsigned int max_cpus) { - int i; + int i, irq = BASE_IPI_IRQ; /* * should eventually have some sort of machine @@ -226,11 +206,14 @@ void __init smp_prepare_cpus(unsigned int max_cpus) set_cpu_present(i, true); /* Also need to register the interrupts for IPI */ - if (max_cpus > 1) - setup_irq(BASE_IPI_IRQ, &ipi_intdesc); + if (max_cpus > 1) { + if (request_irq(irq, handle_ipi, IRQF_TRIGGER_RISING, + "ipi_handler", NULL)) + pr_err("Failed to request irq %d (ipi_handler)\n", irq); + } } -void smp_send_reschedule(int cpu) +void arch_smp_send_reschedule(int cpu) { send_ipi(cpumask_of(cpu), IPI_RESCHEDULE); } @@ -253,11 +236,6 @@ void arch_send_call_function_ipi_mask(const struct cpumask *mask) send_ipi(mask, IPI_CALL_FUNC); } -int setup_profiling_timer(unsigned int multiplier) -{ - return -EINVAL; -} - void smp_start_cpus(void) { int i; |