Changeset 87124 in vbox for trunk/include/iprt

Timestamp:

Dec 24, 2020 2:59:52 PM (4 years ago)

Author:

vboxsync

Message:

iprt/asm.h: Some more fun. bugref:9888

File:

• trunk/include/iprt/asm.h (modified) (5 diffs)

trunk/include/iprt/asm.h

@@ -1526 +1526 @@
 
 /**
- * Serialize Instruction.
+ * Serialize Instruction (both data store and instruction flush).
  */
 #if (defined(RT_ARCH_X86) && ARCH_BITS == 16) || defined(IN_GUEST)
@@ -1534 +1534 @@
 #elif defined(RT_ARCH_SPARC64)
 RTDECL(void) ASMSerializeInstruction(void) RT_NOTHROW_PROTO;
+#elif defined(RT_ARCH_ARM64) || defined(RT_ARCH_ARM32)
+DECLINLINE(void) ASMSerializeInstruction(void) RT_NOTHROW_DEF
+{
+    /* Note! Only armv7 and later. */
+    __asm__ __volatile__ ("dsb\n\t" ::: "memory");
+}
 #else
 # error "Port me"
@@ -1557 +1563 @@
     }
 # endif
+#elif defined(RT_ARCH_ARM64) || defined(RT_ARCH_ARM32)
+    /* Note! Only armv7 and later. */
+    __asm__ __volatile__ ("dsb\n\t");
 #elif ARCH_BITS == 16
     uint16_t volatile u16;
@@ -1585 +1594 @@
     }
 # endif
+#elif defined(RT_ARCH_ARM64) || defined(RT_ARCH_ARM32)
+    /* Note! Only armv7 and later. */
+    __asm__ __volatile__ ("dmb\n\t");
 #else
     ASMMemoryFence();
@@ -1609 +1621 @@
     }
 # endif
+#elif defined(RT_ARCH_ARM64) || defined(RT_ARCH_ARM32)
+    /* Note! Only armv7 and later. */
+    __asm__ __volatile__ ("dmb\n\t");
 #else
     ASMMemoryFence();