arch: arm64: cache: optionally enable APIs for operation all dcache

Added new configuration item to optionally enable APIs for operation
all data cache, by default these APIs are disabled.

Signed-off-by: Jiafei Pan <[email protected]>

Author: JiafeiPan

arch/arm64/core/Kconfig

@@ -357,4 +357,11 @@ config MAX_XLAT_TABLES
 
 endif # ARM_MMU
 
+config ARM64_DCACHE_ALL_OPS
+	bool "Provide data cache APIs to operate all data caches"
+	depends on CACHE_MANAGEMENT && DCACHE
+	help
+	  Enable this option to provide the data cache APIs to flush or
+	  invalidate all data caches.
+
 endif # CPU_CORTEX_A || CPU_AARCH64_CORTEX_R

include/zephyr/arch/arm64/cache.h

@@ -139,6 +139,8 @@ static ALWAYS_INLINE int arm64_dcache_range(void *addr, size_t size, int op)
 	return 0;
 }
 
+#ifdef CONFIG_ARM64_DCACHE_ALL_OPS
+
 /*
  * operation for all data cache
  * ops:  K_CACHE_INVD: invalidate
@@ -227,6 +229,25 @@ static ALWAYS_INLINE int arch_dcache_flush_and_invd_all(void)
 	return arm64_dcache_all(K_CACHE_WB_INVD);
 }
 
+#else
+
+static ALWAYS_INLINE int arch_dcache_flush_all(void)
+{
+	return -ENOTSUP;
+}
+
+static ALWAYS_INLINE int arch_dcache_invd_all(void)
+{
+	return -ENOTSUP;
+}
+
+static ALWAYS_INLINE int arch_dcache_flush_and_invd_all(void)
+{
+	return -ENOTSUP;
+}
+
+#endif /* CONFIG_ARM64_DCACHE_ALL_OPS */
+
 static ALWAYS_INLINE int arch_dcache_flush_range(void *addr, size_t size)
 {
 	return arm64_dcache_range(addr, size, K_CACHE_WB);