svn commit: r365697 - head/sys/powerpc/powerpc

[Brandon Bergren]

Author: bdragon
Date: Sun Sep 13 21:22:39 2020
New Revision: 365697
URL: https://svnweb.freebsd.org/changeset/base/365697

Log:
  [PowerPC64LE] Bus space prep for LE
  
  Swap the BE and LE bus_space tags when on LE, and adjust the nexus tag
  to match.
  
  This is prep for a a followup that makes the powerpc bus_space macros easier
  to maintain in the future.
  
  Sponsored by:	Tag1 Consulting, Inc.

Modified:
  head/sys/powerpc/powerpc/bus_machdep.c
  head/sys/powerpc/powerpc/nexus.c

Modified: head/sys/powerpc/powerpc/bus_machdep.c
==============================================================================
--- head/sys/powerpc/powerpc/bus_machdep.c	Sun Sep 13 19:56:53 2020	(r365696)
+++ head/sys/powerpc/powerpc/bus_machdep.c	Sun Sep 13 21:22:39 2020	(r365697)
@@ -790,7 +790,11 @@ bs_le_sr_8(bus_space_handle_t bsh, bus_size_t ofs, uin
 	TODO;
 }
 
+#if BYTE_ORDER == LITTLE_ENDIAN
+struct bus_space bs_le_tag = {
+#else
 struct bus_space bs_be_tag = {
+#endif
 	/* mapping/unmapping */
 	bs_gen_map,
 	bs_gen_unmap,
@@ -884,7 +888,11 @@ struct bus_space bs_be_tag = {
 	bs_be_sr_8,
 };
 
+#if BYTE_ORDER == LITTLE_ENDIAN
+struct bus_space bs_be_tag = {
+#else
 struct bus_space bs_le_tag = {
+#endif
 	/* mapping/unmapping */
 	bs_gen_map,
 	bs_gen_unmap,

Modified: head/sys/powerpc/powerpc/nexus.c
==============================================================================
--- head/sys/powerpc/powerpc/nexus.c	Sun Sep 13 19:56:53 2020	(r365696)
+++ head/sys/powerpc/powerpc/nexus.c	Sun Sep 13 21:22:39 2020	(r365697)
@@ -35,6 +35,7 @@
 #include <sys/cdefs.h>
 __FBSDID("$FreeBSD$");
 
+#include <sys/endian.h>
 #include <sys/param.h>
 #include <sys/systm.h>
 #include <sys/bus.h>
@@ -173,7 +174,11 @@ static bus_space_tag_t
 nexus_get_bus_tag(device_t bus __unused, device_t child __unused)
 {
 
+#if BYTE_ORDER == LITTLE_ENDIAN
+	return(&bs_le_tag);
+#else
 	return(&bs_be_tag);
+#endif
 }
 
 static int