X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=arch%2Fia64%2Fsn%2Fkernel%2Fiomv.c;h=4aa4f301d56d5a63aa114830b23328eefc034476;hb=a2f44b27303a5353859d77a3e96a1d3f33f56ab7;hp=fec6d8b8237b7191b88cb2e9fca2d2df75e6970f;hpb=134734d875a0a48d994ef20b9905209b4b8b6f75;p=linux-2.6.git

diff --git a/arch/ia64/sn/kernel/iomv.c b/arch/ia64/sn/kernel/iomv.c
index fec6d8b82..4aa4f301d 100644
--- a/arch/ia64/sn/kernel/iomv.c
+++ b/arch/ia64/sn/kernel/iomv.c
@@ -3,17 +3,23 @@
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
  *
- * Copyright (C) 2000-2003 Silicon Graphics, Inc. All rights reserved.
+ * Copyright (C) 2000-2003, 2006 Silicon Graphics, Inc. All rights reserved.
  */
 
 #include <linux/module.h>
+#include <linux/acpi.h>
 #include <asm/io.h>
 #include <asm/delay.h>
+#include <asm/vga.h>
 #include <asm/sn/nodepda.h>
 #include <asm/sn/simulator.h>
 #include <asm/sn/pda.h>
 #include <asm/sn/sn_cpuid.h>
 #include <asm/sn/shub_mmr.h>
+#include <asm/sn/acpi.h>
+
+#define IS_LEGACY_VGA_IOPORT(p) \
+	(((p) >= 0x3b0 && (p) <= 0x3bb) || ((p) >= 0x3c0 && (p) <= 0x3df))
 
 /**
  * sn_io_addr - convert an in/out port to an i/o address
@@ -26,10 +32,15 @@
 void *sn_io_addr(unsigned long port)
 {
 	if (!IS_RUNNING_ON_SIMULATOR()) {
+		if (IS_LEGACY_VGA_IOPORT(port))
+			return (__ia64_mk_io_addr(port));
 		/* On sn2, legacy I/O ports don't point at anything */
 		if (port < (64 * 1024))
 			return NULL;
-		return ((void *)(port | __IA64_UNCACHED_OFFSET));
+		if (SN_ACPI_BASE_SUPPORT())
+			return (__ia64_mk_io_addr(port));
+		else
+			return ((void *)(port | __IA64_UNCACHED_OFFSET));
 	} else {
 		/* but the simulator uses them... */
 		unsigned long addr;