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authorJohn Keller <jpk@sgi.com>2006-10-04 16:49:25 -0500
committerGreg Kroah-Hartman <gregkh@suse.de>2006-12-01 14:36:57 -0800
commit8ea6091f500162e97687d7acf925f84202066b8d (patch)
treec2ee3b467cce2869dc84e1180cc9d8034fdeee3e /include/asm-ia64/sn
parente08cf02f32dff732b2be0c9755cf5eb676f88e48 (diff)
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Altix: Add initial ACPI IO support
First phase in introducing ACPI support to SN. In this phase, when running with an ACPI capable PROM, the DSDT will define the root busses and all SN nodes (SGIHUB, SGITIO). An ACPI bus driver will be registered for the node devices, with the acpi_pci_root_driver being used for the root busses. An ACPI vendor descriptor is now used to pass platform specific information for both nodes and busses, eliminating the need for the current SAL calls. Also, with ACPI support, SN fixup code is no longer needed to initiate the PCI bus scans, as the acpi_pci_root_driver does that. However, to maintain backward compatibility with non-ACPI capable PROMs, none of the current 'fixup' code can been deleted, though much restructuring has been done. For example, the bulk of the code in io_common.c is relocated code that is now common regardless of what PROM is running, while io_acpi_init.c and io_init.c contain routines specific to an ACPI or non ACPI capable PROM respectively. A new pci bus fixup platform vector has been created to provide a hook for invoking platform specific bus fixup from pcibios_fixup_bus(). The size of io_space[] has been increased to support systems with large IO configurations. Signed-off-by: John Keller <jpk@sgi.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'include/asm-ia64/sn')
-rw-r--r--include/asm-ia64/sn/acpi.h16
-rw-r--r--include/asm-ia64/sn/pcidev.h22
-rw-r--r--include/asm-ia64/sn/sn_feature_sets.h6
-rw-r--r--include/asm-ia64/sn/sn_sal.h1
4 files changed, 32 insertions, 13 deletions
diff --git a/include/asm-ia64/sn/acpi.h b/include/asm-ia64/sn/acpi.h
new file mode 100644
index 0000000..2850a7e
--- /dev/null
+++ b/include/asm-ia64/sn/acpi.h
@@ -0,0 +1,16 @@
+/*
+ * 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.
+ *
+ * Copyright (C) 2006 Silicon Graphics, Inc. All rights reserved.
+ */
+
+#ifndef _ASM_IA64_SN_ACPI_H
+#define _ASM_IA64_SN_ACPI_H
+
+#include "acpi/acglobal.h"
+
+#define SN_ACPI_BASE_SUPPORT() (acpi_gbl_DSDT->oem_revision >= 0x20101)
+
+#endif /* _ASM_IA64_SN_ACPI_H */
diff --git a/include/asm-ia64/sn/pcidev.h b/include/asm-ia64/sn/pcidev.h
index eac3561..9fe89a9 100644
--- a/include/asm-ia64/sn/pcidev.h
+++ b/include/asm-ia64/sn/pcidev.h
@@ -3,7 +3,7 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
- * Copyright (C) 1992 - 1997, 2000-2005 Silicon Graphics, Inc. All rights reserved.
+ * Copyright (C) 1992 - 1997, 2000-2006 Silicon Graphics, Inc. All rights reserved.
*/
#ifndef _ASM_IA64_SN_PCI_PCIDEV_H
#define _ASM_IA64_SN_PCI_PCIDEV_H
@@ -12,31 +12,29 @@
/*
* In ia64, pci_dev->sysdata must be a *pci_controller. To provide access to
- * the pcidev_info structs for all devices under a controller, we extend the
- * definition of pci_controller, via sn_pci_controller, to include a list
- * of pcidev_info.
+ * the pcidev_info structs for all devices under a controller, we keep a
+ * list of pcidev_info under pci_controller->platform_data.
*/
-struct sn_pci_controller {
- struct pci_controller pci_controller;
+struct sn_platform_data {
+ void *provider_soft;
struct list_head pcidev_info;
};
-#define SN_PCI_CONTROLLER(dev) ((struct sn_pci_controller *) dev->sysdata)
+#define SN_PLATFORM_DATA(busdev) \
+ ((struct sn_platform_data *)(PCI_CONTROLLER(busdev)->platform_data))
#define SN_PCIDEV_INFO(dev) sn_pcidev_info_get(dev)
-#define SN_PCIBUS_BUSSOFT_INFO(pci_bus) \
- (struct pcibus_info *)((struct pcibus_bussoft *)(PCI_CONTROLLER((pci_bus))->platform_data))
/*
* Given a pci_bus, return the sn pcibus_bussoft struct. Note that
* this only works for root busses, not for busses represented by PPB's.
*/
#define SN_PCIBUS_BUSSOFT(pci_bus) \
- ((struct pcibus_bussoft *)(PCI_CONTROLLER((pci_bus))->platform_data))
+ ((struct pcibus_bussoft *)(SN_PLATFORM_DATA(pci_bus)->provider_soft))
#define SN_PCIBUS_BUSSOFT_INFO(pci_bus) \
- (struct pcibus_info *)((struct pcibus_bussoft *)(PCI_CONTROLLER((pci_bus))->platform_data))
+ ((struct pcibus_info *)(SN_PLATFORM_DATA(pci_bus)->provider_soft))
/*
* Given a struct pci_dev, return the sn pcibus_bussoft struct. Note
* that this is not equivalent to SN_PCIBUS_BUSSOFT(pci_dev->bus) due
@@ -72,8 +70,6 @@ extern void sn_irq_fixup(struct pci_dev *pci_dev,
struct sn_irq_info *sn_irq_info);
extern void sn_irq_unfixup(struct pci_dev *pci_dev);
extern struct pcidev_info * sn_pcidev_info_get(struct pci_dev *);
-extern void sn_pci_controller_fixup(int segment, int busnum,
- struct pci_bus *bus);
extern void sn_bus_store_sysdata(struct pci_dev *dev);
extern void sn_bus_free_sysdata(void);
extern void sn_generate_path(struct pci_bus *pci_bus, char *address);
diff --git a/include/asm-ia64/sn/sn_feature_sets.h b/include/asm-ia64/sn/sn_feature_sets.h
index 30dcfa4..bfdc362 100644
--- a/include/asm-ia64/sn/sn_feature_sets.h
+++ b/include/asm-ia64/sn/sn_feature_sets.h
@@ -44,8 +44,14 @@ extern int sn_prom_feature_available(int id);
* Once enabled, a feature cannot be disabled.
*
* By default, features are disabled unless explicitly enabled.
+ *
+ * These defines must be kept in sync with the corresponding
+ * PROM definitions in feature_sets.h.
*/
#define OSF_MCA_SLV_TO_OS_INIT_SLV 0
#define OSF_FEAT_LOG_SBES 1
+#define OSF_ACPI_ENABLE 2
+#define OSF_PCISEGMENT_ENABLE 3
+
#endif /* _ASM_IA64_SN_FEATURE_SETS_H */
diff --git a/include/asm-ia64/sn/sn_sal.h b/include/asm-ia64/sn/sn_sal.h
index ba826b3..be5d83a 100644
--- a/include/asm-ia64/sn/sn_sal.h
+++ b/include/asm-ia64/sn/sn_sal.h
@@ -77,6 +77,7 @@
#define SN_SAL_IOIF_GET_WIDGET_DMAFLUSH_LIST 0x02000058 // deprecated
#define SN_SAL_IOIF_GET_DEVICE_DMAFLUSH_LIST 0x0200005a
+#define SN_SAL_IOIF_INIT 0x0200005f
#define SN_SAL_HUB_ERROR_INTERRUPT 0x02000060
#define SN_SAL_BTE_RECOVER 0x02000061
#define SN_SAL_RESERVED_DO_NOT_USE 0x02000062
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