From 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 13 May 2024 10:30:14 +0000
Subject: [PATCH] modify sin led gpio
---
kernel/arch/hexagon/kernel/smp.c | 37 ++++++++++++-------------------------
1 files changed, 12 insertions(+), 25 deletions(-)
diff --git a/kernel/arch/hexagon/kernel/smp.c b/kernel/arch/hexagon/kernel/smp.c
index 5dbc155..619c564 100644
--- a/kernel/arch/hexagon/kernel/smp.c
+++ b/kernel/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>
@@ -127,12 +114,6 @@
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)
{
}
@@ -145,8 +126,8 @@
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 +149,10 @@
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 +198,7 @@
void __init smp_prepare_cpus(unsigned int max_cpus)
{
- int i;
+ int i, irq = BASE_IPI_IRQ;
/*
* should eventually have some sort of machine
@@ -226,8 +210,11 @@
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)
--
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