From 23fa18eaa71266feff7ba8d83022d9e1cc83c65a Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 10 May 2024 07:42:03 +0000
Subject: [PATCH] disable pwm7
---
kernel/arch/arm64/kernel/irq.c | 53 +++++++++++++++++++++++++++++++----------------------
1 files changed, 31 insertions(+), 22 deletions(-)
diff --git a/kernel/arch/arm64/kernel/irq.c b/kernel/arch/arm64/kernel/irq.c
index 108e4ac..dfb1fea 100644
--- a/kernel/arch/arm64/kernel/irq.c
+++ b/kernel/arch/arm64/kernel/irq.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0-only
/*
* Based on arch/arm/kernel/irq.c
*
@@ -7,44 +8,43 @@
* Dynamic Tick Timer written by Tony Lindgren <tony@atomide.com> and
* Tuukka Tikkanen <tuukka.tikkanen@elektrobit.com>.
* Copyright (C) 2012 ARM Ltd.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License 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, see <http://www.gnu.org/licenses/>.
*/
-#include <linux/kernel_stat.h>
#include <linux/irq.h>
#include <linux/memory.h>
#include <linux/smp.h>
+#include <linux/hardirq.h>
#include <linux/init.h>
#include <linux/irqchip.h>
+#include <linux/kprobes.h>
+#include <linux/scs.h>
#include <linux/seq_file.h>
#include <linux/vmalloc.h>
+#include <asm/daifflags.h>
#include <asm/vmap_stack.h>
-#include <asm/scs.h>
-
-unsigned long irq_err_count;
/* Only access this in an NMI enter/exit */
DEFINE_PER_CPU(struct nmi_ctx, nmi_contexts);
DEFINE_PER_CPU(unsigned long *, irq_stack_ptr);
-EXPORT_PER_CPU_SYMBOL_GPL(irq_stack_ptr);
-int arch_show_interrupts(struct seq_file *p, int prec)
+
+DECLARE_PER_CPU(unsigned long *, irq_shadow_call_stack_ptr);
+
+#ifdef CONFIG_SHADOW_CALL_STACK
+DEFINE_PER_CPU(unsigned long *, irq_shadow_call_stack_ptr);
+#endif
+
+static void init_irq_scs(void)
{
- show_ipi_list(p, prec);
- seq_printf(p, "%*s: %10lu\n", prec, "Err", irq_err_count);
- return 0;
+ int cpu;
+
+ if (!IS_ENABLED(CONFIG_SHADOW_CALL_STACK))
+ return;
+
+ for_each_possible_cpu(cpu)
+ per_cpu(irq_shadow_call_stack_ptr, cpu) =
+ scs_alloc(cpu_to_node(cpu));
}
#ifdef CONFIG_VMAP_STACK
@@ -74,8 +74,17 @@
void __init init_IRQ(void)
{
init_irq_stacks();
- scs_init_irq();
+ init_irq_scs();
irqchip_init();
if (!handle_arch_irq)
panic("No interrupt controller found.");
+
+ if (system_uses_irq_prio_masking()) {
+ /*
+ * Now that we have a stack for our IRQ handler, set
+ * the PMR/PSR pair to a consistent state.
+ */
+ WARN_ON(read_sysreg(daif) & PSR_A_BIT);
+ local_daif_restore(DAIF_PROCCTX_NOIRQ);
+ }
}
--
Gitblit v1.6.2