From 10ebd8556b7990499c896a550e3d416b444211e6 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 10 May 2024 02:23:07 +0000
Subject: [PATCH] add led
---
kernel/arch/arm/include/asm/atomic.h | 57 +++++++++++++++++++++++++--------------------------------
1 files changed, 25 insertions(+), 32 deletions(-)
diff --git a/kernel/arch/arm/include/asm/atomic.h b/kernel/arch/arm/include/asm/atomic.h
index f747566..455eb19 100644
--- a/kernel/arch/arm/include/asm/atomic.h
+++ b/kernel/arch/arm/include/asm/atomic.h
@@ -1,12 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
/*
* arch/arm/include/asm/atomic.h
*
* Copyright (C) 1996 Russell King.
* Copyright (C) 2002 Deep Blue Solutions 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.
*/
#ifndef __ASM_ARM_ATOMIC_H
#define __ASM_ARM_ATOMIC_H
@@ -17,8 +14,6 @@
#include <linux/irqflags.h>
#include <asm/barrier.h>
#include <asm/cmpxchg.h>
-
-#define ATOMIC_INIT(i) { (i) }
#ifdef __KERNEL__
@@ -249,15 +244,15 @@
#ifndef CONFIG_GENERIC_ATOMIC64
typedef struct {
- long long counter;
+ s64 counter;
} atomic64_t;
#define ATOMIC64_INIT(i) { (i) }
#ifdef CONFIG_ARM_LPAE
-static inline long long atomic64_read(const atomic64_t *v)
+static inline s64 atomic64_read(const atomic64_t *v)
{
- long long result;
+ s64 result;
__asm__ __volatile__("@ atomic64_read\n"
" ldrd %0, %H0, [%1]"
@@ -268,7 +263,7 @@
return result;
}
-static inline void atomic64_set(atomic64_t *v, long long i)
+static inline void atomic64_set(atomic64_t *v, s64 i)
{
__asm__ __volatile__("@ atomic64_set\n"
" strd %2, %H2, [%1]"
@@ -277,9 +272,9 @@
);
}
#else
-static inline long long atomic64_read(const atomic64_t *v)
+static inline s64 atomic64_read(const atomic64_t *v)
{
- long long result;
+ s64 result;
__asm__ __volatile__("@ atomic64_read\n"
" ldrexd %0, %H0, [%1]"
@@ -290,9 +285,9 @@
return result;
}
-static inline void atomic64_set(atomic64_t *v, long long i)
+static inline void atomic64_set(atomic64_t *v, s64 i)
{
- long long tmp;
+ s64 tmp;
prefetchw(&v->counter);
__asm__ __volatile__("@ atomic64_set\n"
@@ -307,9 +302,9 @@
#endif
#define ATOMIC64_OP(op, op1, op2) \
-static inline void atomic64_##op(long long i, atomic64_t *v) \
+static inline void atomic64_##op(s64 i, atomic64_t *v) \
{ \
- long long result; \
+ s64 result; \
unsigned long tmp; \
\
prefetchw(&v->counter); \
@@ -326,10 +321,10 @@
} \
#define ATOMIC64_OP_RETURN(op, op1, op2) \
-static inline long long \
-atomic64_##op##_return_relaxed(long long i, atomic64_t *v) \
+static inline s64 \
+atomic64_##op##_return_relaxed(s64 i, atomic64_t *v) \
{ \
- long long result; \
+ s64 result; \
unsigned long tmp; \
\
prefetchw(&v->counter); \
@@ -349,10 +344,10 @@
}
#define ATOMIC64_FETCH_OP(op, op1, op2) \
-static inline long long \
-atomic64_fetch_##op##_relaxed(long long i, atomic64_t *v) \
+static inline s64 \
+atomic64_fetch_##op##_relaxed(s64 i, atomic64_t *v) \
{ \
- long long result, val; \
+ s64 result, val; \
unsigned long tmp; \
\
prefetchw(&v->counter); \
@@ -406,10 +401,9 @@
#undef ATOMIC64_OP_RETURN
#undef ATOMIC64_OP
-static inline long long
-atomic64_cmpxchg_relaxed(atomic64_t *ptr, long long old, long long new)
+static inline s64 atomic64_cmpxchg_relaxed(atomic64_t *ptr, s64 old, s64 new)
{
- long long oldval;
+ s64 oldval;
unsigned long res;
prefetchw(&ptr->counter);
@@ -430,9 +424,9 @@
}
#define atomic64_cmpxchg_relaxed atomic64_cmpxchg_relaxed
-static inline long long atomic64_xchg_relaxed(atomic64_t *ptr, long long new)
+static inline s64 atomic64_xchg_relaxed(atomic64_t *ptr, s64 new)
{
- long long result;
+ s64 result;
unsigned long tmp;
prefetchw(&ptr->counter);
@@ -450,9 +444,9 @@
}
#define atomic64_xchg_relaxed atomic64_xchg_relaxed
-static inline long long atomic64_dec_if_positive(atomic64_t *v)
+static inline s64 atomic64_dec_if_positive(atomic64_t *v)
{
- long long result;
+ s64 result;
unsigned long tmp;
smp_mb();
@@ -478,10 +472,9 @@
}
#define atomic64_dec_if_positive atomic64_dec_if_positive
-static inline long long atomic64_fetch_add_unless(atomic64_t *v, long long a,
- long long u)
+static inline s64 atomic64_fetch_add_unless(atomic64_t *v, s64 a, s64 u)
{
- long long oldval, newval;
+ s64 oldval, newval;
unsigned long tmp;
smp_mb();
--
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