Subject: Basic support for aarch64
Author: Andreas Schwab <schwab@suse.de>

Index: xorg-server-1.13.2/hw/xfree86/os-support/linux/lnx_video.c
===================================================================
--- xorg-server-1.13.2.orig/hw/xfree86/os-support/linux/lnx_video.c
+++ xorg-server-1.13.2/hw/xfree86/os-support/linux/lnx_video.c
@@ -58,7 +58,8 @@ static Bool ExtendedEnabled = FALSE;
       !defined(__sparc__) && \
       !defined(__mips__) && \
       !defined(__nds32__) && \
-      !defined(__arm__)
+      !defined(__arm__) && \
+      !defined(__aarch64__)
 
 /*
  * Due to conflicts with "compiler.h", don't rely on <sys/io.h> to declare
@@ -511,7 +512,7 @@ xf86EnableIO(void)
 #endif
     }
     close(fd);
-#elif !defined(__mc68000__) && !defined(__sparc__) && !defined(__mips__) && !defined(__sh__) && !defined(__hppa__) && !defined(__s390__) && !defined(__arm__) && !defined(__m32r__) && !defined(__nds32__)
+#elif !defined(__mc68000__) && !defined(__sparc__) && !defined(__mips__) && !defined(__sh__) && !defined(__hppa__) && !defined(__s390__) && !defined(__arm__) && !defined(__m32r__) && !defined(__nds32__) && !defined(__aarch64__)
     if (ioperm(0, 1024, 1) || iopl(3)) {
         if (errno == ENODEV)
             ErrorF("xf86EnableIOPorts: no I/O ports found\n");
@@ -540,7 +541,7 @@ xf86DisableIO(void)
 #if defined(__powerpc__)
     munmap(ioBase, 0x20000);
     ioBase = NULL;
-#elif !defined(__mc68000__) && !defined(__sparc__) && !defined(__mips__) && !defined(__sh__) && !defined(__hppa__) && !defined(__arm__) && !defined(__s390__) && !defined(__m32r__) && !defined(__nds32__)
+#elif !defined(__mc68000__) && !defined(__sparc__) && !defined(__mips__) && !defined(__sh__) && !defined(__hppa__) && !defined(__arm__) && !defined(__s390__) && !defined(__m32r__) && !defined(__nds32__) && !defined(__aarch64__)
     iopl(0);
     ioperm(0, 1024, 0);
 #endif
Index: xorg-server-1.13.2/include/servermd.h
===================================================================
--- xorg-server-1.13.2.orig/include/servermd.h
+++ xorg-server-1.13.2/include/servermd.h
@@ -286,6 +286,20 @@ SOFTWARE.
 #define GLYPHPADBYTES		4
 #endif                          /* linux/s390 */
 
+#ifdef __aarch64__
+
+#ifdef __AARCH64EL__
+#define IMAGE_BYTE_ORDER        LSBFirst
+#define BITMAP_BIT_ORDER        LSBFirst
+#endif
+#ifdef __AARCH64EB__
+#define IMAGE_BYTE_ORDER        MSBFirst
+#define BITMAP_BIT_ORDER        MSBFirst
+#endif
+#define GLYPHPADBYTES           4
+
+#endif                          /* __aarch64__ */
+
 /* size of buffer to use with GetImage, measured in bytes. There's obviously
  * a trade-off between the amount of heap used and the number of times the
  * ddx routine has to be called.