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-rw-r--r--arch/ia64/sn/kernel/io_common.c17
-rw-r--r--arch/ia64/sn/kernel/iomv.c10
2 files changed, 18 insertions, 9 deletions
diff --git a/arch/ia64/sn/kernel/io_common.c b/arch/ia64/sn/kernel/io_common.c
index d4dd8f4b6b8..65979f1fb35 100644
--- a/arch/ia64/sn/kernel/io_common.c
+++ b/arch/ia64/sn/kernel/io_common.c
@@ -25,7 +25,6 @@
#include "xtalk/xwidgetdev.h"
#include <linux/acpi.h>
#include <asm/sn/sn2/sn_hwperf.h>
-#include <asm/sn/acpi.h>
extern void sn_init_cpei_timer(void);
extern void register_sn_procfs(void);
@@ -37,7 +36,6 @@ extern void sn_legacy_pci_window_fixup(struct pci_controller *, u64, u64);
extern void sn_io_acpi_init(void);
extern void sn_io_init(void);
-
static struct list_head sn_sysdata_list;
/* sysdata list struct */
@@ -50,6 +48,15 @@ int sn_ioif_inited; /* SN I/O infrastructure initialized? */
struct sn_pcibus_provider *sn_pci_provider[PCIIO_ASIC_MAX_TYPES]; /* indexed by asic type */
+int sn_acpi_base_support()
+{
+ struct acpi_table_header *header;
+ (void)acpi_get_table_by_index(ACPI_TABLE_INDEX_DSDT, &header);
+ if (header && header->oem_revision >= 0x20101)
+ return 1;
+ return 0;
+}
+
/*
* Hooks and struct for unsupported pci providers
*/
@@ -286,7 +293,7 @@ void sn_pci_fixup_slot(struct pci_dev *dev)
list_add_tail(&pcidev_info->pdi_list,
&(SN_PLATFORM_DATA(dev->bus)->pcidev_info));
- if (SN_ACPI_BASE_SUPPORT())
+ if (sn_acpi_base_support())
sn_acpi_slot_fixup(dev, pcidev_info);
else
sn_more_slot_fixup(dev, pcidev_info);
@@ -498,7 +505,7 @@ void __devinit
sn_pci_fixup_bus(struct pci_bus *bus)
{
- if (SN_ACPI_BASE_SUPPORT())
+ if (sn_acpi_base_support())
sn_acpi_bus_fixup(bus);
else
sn_bus_fixup(bus);
@@ -546,7 +553,7 @@ sn_io_early_init(void)
printk(KERN_INFO "ACPI DSDT OEM Rev 0x%x\n",
acpi_gbl_DSDT->oem_revision);
- if (SN_ACPI_BASE_SUPPORT())
+ if (sn_acpi_base_support())
sn_io_acpi_init();
else
sn_io_init();
diff --git a/arch/ia64/sn/kernel/iomv.c b/arch/ia64/sn/kernel/iomv.c
index 4aa4f301d56..b1a47da118b 100644
--- a/arch/ia64/sn/kernel/iomv.c
+++ b/arch/ia64/sn/kernel/iomv.c
@@ -1,4 +1,4 @@
-/*
+/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
@@ -16,7 +16,6 @@
#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))
@@ -26,9 +25,12 @@
* @port: port to convert
*
* Legacy in/out instructions are converted to ld/st instructions
- * on IA64. This routine will convert a port number into a valid
+ * on IA64. This routine will convert a port number into a valid
* SN i/o address. Used by sn_in*() and sn_out*().
*/
+
+extern int sn_acpi_base_support();
+
void *sn_io_addr(unsigned long port)
{
if (!IS_RUNNING_ON_SIMULATOR()) {
@@ -37,7 +39,7 @@ void *sn_io_addr(unsigned long port)
/* On sn2, legacy I/O ports don't point at anything */
if (port < (64 * 1024))
return NULL;
- if (SN_ACPI_BASE_SUPPORT())
+ if (sn_acpi_base_support())
return (__ia64_mk_io_addr(port));
else
return ((void *)(port | __IA64_UNCACHED_OFFSET));