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/parisc/kernel/smp.c | 19 +++++++++----------
1 files changed, 9 insertions(+), 10 deletions(-)
diff --git a/kernel/arch/parisc/kernel/smp.c b/kernel/arch/parisc/kernel/smp.c
index ae4fc87..cf92ece 100644
--- a/kernel/arch/parisc/kernel/smp.c
+++ b/kernel/arch/parisc/kernel/smp.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
** SMP Support
**
@@ -11,10 +12,6 @@
** Thanks to John Curry and Ullas Ponnadi. I learned a lot from their work.
** -grant (1/12/2001)
**
-** This program is free software; you can redistribute it and/or modify
-** it under the terms of the GNU General Public License as published by
-** the Free Software Foundation; either version 2 of the License, or
-** (at your option) any later version.
*/
#include <linux/types.h>
#include <linux/spinlock.h>
@@ -43,8 +40,6 @@
#include <asm/irq.h> /* for CPU_IRQ_REGION and friends */
#include <asm/mmu_context.h>
#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/pgalloc.h>
#include <asm/processor.h>
#include <asm/ptrace.h>
#include <asm/unistd.h>
@@ -116,6 +111,7 @@
/* REVISIT : does PM *know* this CPU isn't available? */
set_cpu_online(smp_processor_id(), false);
local_irq_disable();
+ __pdc_cpu_rendezvous();
for (;;)
;
}
@@ -159,6 +155,7 @@
case IPI_CALL_FUNC:
smp_debug(100, KERN_DEBUG "CPU%d IPI_CALL_FUNC\n", this_cpu);
+ inc_irq_stat(irq_call_count);
generic_smp_call_function_interrupt();
break;
@@ -185,9 +182,12 @@
this_cpu, which);
return IRQ_NONE;
} /* Switch */
- /* let in any pending interrupts */
- local_irq_enable();
- local_irq_disable();
+
+ /* before doing more, let in any pending interrupts */
+ if (ops) {
+ local_irq_enable();
+ local_irq_disable();
+ }
} /* while (ops) */
}
return IRQ_HANDLED;
@@ -317,7 +317,6 @@
#endif
smp_cpu_init(slave_id);
- preempt_disable();
flush_cache_all_local(); /* start with known state */
flush_tlb_all_local(NULL);
--
Gitblit v1.6.2