From a66c3f8d3d1f70beb3147999db21229803eb7021 Mon Sep 17 00:00:00 2001
From: Ian Moffett <ian@osmora.org>
Date: Wed, 16 Jul 2025 19:19:51 -0400
Subject: sys: atomic: Add 64-bit operations

- Add atomic_inc_64()
- Add atomic_dec_64()
- Add atomic_load_64()
- Add atomic_store_64()

Signed-off-by: Ian Moffett <ian@osmora.org>
---
 sys/include/sys/atomic.h | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/sys/include/sys/atomic.h b/sys/include/sys/atomic.h
index f61bf62..d9b3bde 100644
--- a/sys/include/sys/atomic.h
+++ b/sys/include/sys/atomic.h
@@ -30,6 +30,8 @@
 #ifndef _SYS_ATOMIC_H_
 #define _SYS_ATOMIC_H_
 
+#include <sys/types.h>
+
 static inline unsigned long
 atomic_add_long_nv(volatile unsigned long *p, unsigned long v)
 {
@@ -42,6 +44,12 @@ atomic_add_int_nv(volatile unsigned int *p, unsigned int v)
     return __sync_add_and_fetch(p, v);
 }
 
+static inline unsigned int
+atomic_add_64_nv(volatile uint64_t *p, unsigned int v)
+{
+    return __sync_add_and_fetch(p, v);
+}
+
 static inline unsigned long
 atomic_sub_long_nv(volatile unsigned long *p, unsigned long v)
 {
@@ -54,6 +62,12 @@ atomic_sub_int_nv(volatile unsigned int *p, unsigned int v)
     return __sync_sub_and_fetch(p, v);
 }
 
+static inline unsigned int
+atomic_sub_64_nv(volatile uint64_t *p, unsigned int v)
+{
+    return __sync_sub_and_fetch(p, v);
+}
+
 static inline unsigned int
 atomic_load_int_nv(volatile unsigned int *p, unsigned int v)
 {
@@ -66,6 +80,12 @@ atomic_load_long_nv(volatile unsigned long *p, unsigned int v)
     return __atomic_load_n(p, v);
 }
 
+static inline unsigned int
+atomic_load_64_nv(volatile uint64_t *p, unsigned int v)
+{
+    return __atomic_load_n(p, v);
+}
+
 static inline void
 atomic_store_int_nv(volatile unsigned int *p, int nv, unsigned int v)
 {
@@ -78,20 +98,30 @@ atomic_store_long_nv(volatile unsigned long *p, long nv, unsigned int v)
     __atomic_store_n(p, nv, v);
 }
 
+static inline void
+atomic_store_64_nv(volatile uint64_t *p, long nv, unsigned int v)
+{
+    __atomic_store_n(p, nv, v);
+}
+
 /* Atomic increment (and fetch) operations */
 #define atomic_inc_long(P) atomic_add_long_nv((P), 1)
 #define atomic_inc_int(P) atomic_add_int_nv((P), 1)
+#define atomic_inc_64(P) atomic_add_64_nv((P), 1)
 
 /* Atomic decrement (and fetch) operations */
 #define atomic_dec_long(P) atomic_sub_long_nv((P), 1)
 #define atomic_dec_int(P) atomic_sub_int_nv((P), 1)
+#define atomic_dec_64(P) atomic_sub_64_nv((P), 1)
 
 /* Atomic load operations */
 #define atomic_load_int(P) atomic_load_int_nv((P), __ATOMIC_SEQ_CST)
 #define atomic_load_long(P) atomic_load_long_nv((P), __ATOMIC_SEQ_CST)
+#define atomic_load_64(P) atomic_load_64_nv((P), __ATOMIC_SEQ_CST)
 
 /* Atomic store operations */
 #define atomic_store_int(P, NV) atomic_store_int_nv((P), (NV), __ATOMIC_SEQ_CST)
 #define atomic_store_long(P, NV) atomic_store_long_nv((P), (NV), __ATOMIC_SEQ_CST)
+#define atomic_store_64(P, NV) atomic_store_64_nv((P), (NV), __ATOMIC_SEQ_CST)
 
 #endif  /* !_SYS_ATOMIC_H_ */
-- 
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