Remove the fence.i directive

rcitach · rcitach · commit 16083b8427a3 · 2025-06-11T06:23:08.000Z
diff --git a/bsp/xuantie/virt64/c906/libcpu/cache.h b/bsp/xuantie/virt64/c906/libcpu/cache.h
@@ -50,12 +50,12 @@ rt_always_inline void rt_hw_cpu_dcache_clean_and_invalidate_all_local(void)
 /*use fence.i to invalidate all icache*/
 rt_always_inline void rt_hw_cpu_icache_invalidate_local(void *addr, int size)
 {
-    __asm__ __volatile__("fence.i" ::: "memory");
+
 }
 /*use fence.i to invalidate all icache*/
 rt_always_inline void rt_hw_cpu_icache_invalidate_all_local(void)
 {
-    __asm__ __volatile__("fence.i" ::: "memory");
+
 }
 
 /**
@@ -78,7 +78,7 @@ rt_always_inline void rt_hw_cpu_icache_invalidate_all_local(void)
 /** instruction barrier */
 static inline void rt_hw_cpu_sync(void)
 {
-    __asm__ __volatile__("fence.i" ::: "memory");
+
 }
 
 /**

Original file line number	Diff line number	Diff line change
`@@ -50,12 +50,12 @@ rt_always_inline void rt_hw_cpu_dcache_clean_and_invalidate_all_local(void)`
`50`	`50`	`/use fence.i to invalidate all icache/`
`51`	`51`	`rt_always_inline void rt_hw_cpu_icache_invalidate_local(void *addr, int size)`
`52`	`52`	`{`
`53`		`- __asm__ __volatile__("fence.i" ::: "memory");`
	`53`	`+`
`54`	`54`	`}`
`55`	`55`	`/use fence.i to invalidate all icache/`
`56`	`56`	`rt_always_inline void rt_hw_cpu_icache_invalidate_all_local(void)`
`57`	`57`	`{`
`58`		`- __asm__ __volatile__("fence.i" ::: "memory");`
	`58`	`+`
`59`	`59`	`}`
`60`	`60`
`61`	`61`	`/**`
`@@ -78,7 +78,7 @@ rt_always_inline void rt_hw_cpu_icache_invalidate_all_local(void)`
`78`	`78`	`/** instruction barrier */`
`79`	`79`	`static inline void rt_hw_cpu_sync(void)`
`80`	`80`	`{`
`81`		`- __asm__ __volatile__("fence.i" ::: "memory");`
	`81`	`+`
`82`	`82`	`}`
`83`	`83`
`84`	`84`	`/**`