2005-04-17 06:20:36 +08:00
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/*
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* Machine vector for IA-64.
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*
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* Copyright (C) 1999 Silicon Graphics, Inc.
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* Copyright (C) Srinivasa Thirumalachar <sprasad@engr.sgi.com>
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* Copyright (C) Vijay Chander <vijay@engr.sgi.com>
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* Copyright (C) 1999-2001, 2003-2004 Hewlett-Packard Co.
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* David Mosberger-Tang <davidm@hpl.hp.com>
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*/
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#ifndef _ASM_IA64_MACHVEC_H
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#define _ASM_IA64_MACHVEC_H
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#include <linux/types.h>
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/* forward declarations: */
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struct device;
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struct pt_regs;
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struct scatterlist;
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struct page;
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struct mm_struct;
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struct pci_bus;
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2006-01-27 07:55:52 +08:00
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struct task_struct;
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2006-10-04 17:16:59 +08:00
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struct pci_dev;
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2007-01-29 03:56:37 +08:00
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struct msi_desc;
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2008-04-29 16:00:32 +08:00
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struct dma_attrs;
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2005-04-17 06:20:36 +08:00
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typedef void ia64_mv_setup_t (char **);
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typedef void ia64_mv_cpu_init_t (void);
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typedef void ia64_mv_irq_init_t (void);
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typedef void ia64_mv_send_ipi_t (int, int, int, int);
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IRQ: Maintain regs pointer globally rather than passing to IRQ handlers
Maintain a per-CPU global "struct pt_regs *" variable which can be used instead
of passing regs around manually through all ~1800 interrupt handlers in the
Linux kernel.
The regs pointer is used in few places, but it potentially costs both stack
space and code to pass it around. On the FRV arch, removing the regs parameter
from all the genirq function results in a 20% speed up of the IRQ exit path
(ie: from leaving timer_interrupt() to leaving do_IRQ()).
Where appropriate, an arch may override the generic storage facility and do
something different with the variable. On FRV, for instance, the address is
maintained in GR28 at all times inside the kernel as part of general exception
handling.
Having looked over the code, it appears that the parameter may be handed down
through up to twenty or so layers of functions. Consider a USB character
device attached to a USB hub, attached to a USB controller that posts its
interrupts through a cascaded auxiliary interrupt controller. A character
device driver may want to pass regs to the sysrq handler through the input
layer which adds another few layers of parameter passing.
I've build this code with allyesconfig for x86_64 and i386. I've runtested the
main part of the code on FRV and i386, though I can't test most of the drivers.
I've also done partial conversion for powerpc and MIPS - these at least compile
with minimal configurations.
This will affect all archs. Mostly the changes should be relatively easy.
Take do_IRQ(), store the regs pointer at the beginning, saving the old one:
struct pt_regs *old_regs = set_irq_regs(regs);
And put the old one back at the end:
set_irq_regs(old_regs);
Don't pass regs through to generic_handle_irq() or __do_IRQ().
In timer_interrupt(), this sort of change will be necessary:
- update_process_times(user_mode(regs));
- profile_tick(CPU_PROFILING, regs);
+ update_process_times(user_mode(get_irq_regs()));
+ profile_tick(CPU_PROFILING);
I'd like to move update_process_times()'s use of get_irq_regs() into itself,
except that i386, alone of the archs, uses something other than user_mode().
Some notes on the interrupt handling in the drivers:
(*) input_dev() is now gone entirely. The regs pointer is no longer stored in
the input_dev struct.
(*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does
something different depending on whether it's been supplied with a regs
pointer or not.
(*) Various IRQ handler function pointers have been moved to type
irq_handler_t.
Signed-Off-By: David Howells <dhowells@redhat.com>
(cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
2006-10-05 21:55:46 +08:00
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typedef void ia64_mv_timer_interrupt_t (int, void *);
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2005-10-28 04:41:04 +08:00
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typedef void ia64_mv_global_tlb_purge_t (struct mm_struct *, unsigned long, unsigned long, unsigned long);
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2005-04-17 06:20:36 +08:00
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typedef void ia64_mv_tlb_migrate_finish_t (struct mm_struct *);
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2007-08-14 01:31:26 +08:00
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typedef u8 ia64_mv_irq_to_vector (int);
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2005-04-17 06:20:36 +08:00
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typedef unsigned int ia64_mv_local_vector_to_irq (u8);
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typedef char *ia64_mv_pci_get_legacy_mem_t (struct pci_bus *);
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typedef int ia64_mv_pci_legacy_read_t (struct pci_bus *, u16 port, u32 *val,
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u8 size);
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typedef int ia64_mv_pci_legacy_write_t (struct pci_bus *, u16 port, u32 val,
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u8 size);
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2006-01-27 07:55:52 +08:00
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typedef void ia64_mv_migrate_t(struct task_struct * task);
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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>
2006-10-05 05:49:25 +08:00
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typedef void ia64_mv_pci_fixup_bus_t (struct pci_bus *);
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2006-12-08 01:51:35 +08:00
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typedef void ia64_mv_kernel_launch_event_t(void);
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2005-04-17 06:20:36 +08:00
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/* DMA-mapping interface: */
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typedef void ia64_mv_dma_init (void);
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2008-11-25 06:47:17 +08:00
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typedef u64 ia64_mv_dma_get_required_mask (struct device *);
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2009-01-05 22:59:02 +08:00
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typedef struct dma_map_ops *ia64_mv_dma_get_ops(struct device *);
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2008-04-29 16:00:32 +08:00
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2005-04-17 06:20:36 +08:00
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/*
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* WARNING: The legacy I/O space is _architected_. Platforms are
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* expected to follow this architected model (see Section 10.7 in the
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* IA-64 Architecture Software Developer's Manual). Unfortunately,
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* some broken machines do not follow that model, which is why we have
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* to make the inX/outX operations part of the machine vector.
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* Platform designers should follow the architected model whenever
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* possible.
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*/
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typedef unsigned int ia64_mv_inb_t (unsigned long);
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typedef unsigned int ia64_mv_inw_t (unsigned long);
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typedef unsigned int ia64_mv_inl_t (unsigned long);
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typedef void ia64_mv_outb_t (unsigned char, unsigned long);
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typedef void ia64_mv_outw_t (unsigned short, unsigned long);
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typedef void ia64_mv_outl_t (unsigned int, unsigned long);
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typedef void ia64_mv_mmiowb_t (void);
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typedef unsigned char ia64_mv_readb_t (const volatile void __iomem *);
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typedef unsigned short ia64_mv_readw_t (const volatile void __iomem *);
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typedef unsigned int ia64_mv_readl_t (const volatile void __iomem *);
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typedef unsigned long ia64_mv_readq_t (const volatile void __iomem *);
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typedef unsigned char ia64_mv_readb_relaxed_t (const volatile void __iomem *);
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typedef unsigned short ia64_mv_readw_relaxed_t (const volatile void __iomem *);
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typedef unsigned int ia64_mv_readl_relaxed_t (const volatile void __iomem *);
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typedef unsigned long ia64_mv_readq_relaxed_t (const volatile void __iomem *);
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2006-10-04 17:16:59 +08:00
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2007-01-29 03:56:37 +08:00
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typedef int ia64_mv_setup_msi_irq_t (struct pci_dev *pdev, struct msi_desc *);
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2006-10-04 17:16:59 +08:00
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typedef void ia64_mv_teardown_msi_irq_t (unsigned int irq);
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2005-04-17 06:20:36 +08:00
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static inline void
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machvec_noop (void)
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{
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}
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static inline void
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machvec_noop_mm (struct mm_struct *mm)
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{
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}
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2006-01-27 07:55:52 +08:00
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static inline void
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machvec_noop_task (struct task_struct *task)
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{
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}
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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>
2006-10-05 05:49:25 +08:00
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static inline void
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machvec_noop_bus (struct pci_bus *bus)
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{
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}
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2005-04-17 06:20:36 +08:00
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extern void machvec_setup (char **);
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IRQ: Maintain regs pointer globally rather than passing to IRQ handlers
Maintain a per-CPU global "struct pt_regs *" variable which can be used instead
of passing regs around manually through all ~1800 interrupt handlers in the
Linux kernel.
The regs pointer is used in few places, but it potentially costs both stack
space and code to pass it around. On the FRV arch, removing the regs parameter
from all the genirq function results in a 20% speed up of the IRQ exit path
(ie: from leaving timer_interrupt() to leaving do_IRQ()).
Where appropriate, an arch may override the generic storage facility and do
something different with the variable. On FRV, for instance, the address is
maintained in GR28 at all times inside the kernel as part of general exception
handling.
Having looked over the code, it appears that the parameter may be handed down
through up to twenty or so layers of functions. Consider a USB character
device attached to a USB hub, attached to a USB controller that posts its
interrupts through a cascaded auxiliary interrupt controller. A character
device driver may want to pass regs to the sysrq handler through the input
layer which adds another few layers of parameter passing.
I've build this code with allyesconfig for x86_64 and i386. I've runtested the
main part of the code on FRV and i386, though I can't test most of the drivers.
I've also done partial conversion for powerpc and MIPS - these at least compile
with minimal configurations.
This will affect all archs. Mostly the changes should be relatively easy.
Take do_IRQ(), store the regs pointer at the beginning, saving the old one:
struct pt_regs *old_regs = set_irq_regs(regs);
And put the old one back at the end:
set_irq_regs(old_regs);
Don't pass regs through to generic_handle_irq() or __do_IRQ().
In timer_interrupt(), this sort of change will be necessary:
- update_process_times(user_mode(regs));
- profile_tick(CPU_PROFILING, regs);
+ update_process_times(user_mode(get_irq_regs()));
+ profile_tick(CPU_PROFILING);
I'd like to move update_process_times()'s use of get_irq_regs() into itself,
except that i386, alone of the archs, uses something other than user_mode().
Some notes on the interrupt handling in the drivers:
(*) input_dev() is now gone entirely. The regs pointer is no longer stored in
the input_dev struct.
(*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does
something different depending on whether it's been supplied with a regs
pointer or not.
(*) Various IRQ handler function pointers have been moved to type
irq_handler_t.
Signed-Off-By: David Howells <dhowells@redhat.com>
(cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
2006-10-05 21:55:46 +08:00
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extern void machvec_timer_interrupt (int, void *);
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2005-04-17 06:20:36 +08:00
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extern void machvec_tlb_migrate_finish (struct mm_struct *);
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# if defined (CONFIG_IA64_HP_SIM)
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# include <asm/machvec_hpsim.h>
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# elif defined (CONFIG_IA64_DIG)
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# include <asm/machvec_dig.h>
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2008-10-18 03:14:13 +08:00
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# elif defined(CONFIG_IA64_DIG_VTD)
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# include <asm/machvec_dig_vtd.h>
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2005-04-17 06:20:36 +08:00
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# elif defined (CONFIG_IA64_HP_ZX1)
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# include <asm/machvec_hpzx1.h>
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# elif defined (CONFIG_IA64_HP_ZX1_SWIOTLB)
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# include <asm/machvec_hpzx1_swiotlb.h>
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# elif defined (CONFIG_IA64_SGI_SN2)
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# include <asm/machvec_sn2.h>
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2008-05-07 04:18:57 +08:00
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# elif defined (CONFIG_IA64_SGI_UV)
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# include <asm/machvec_uv.h>
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2008-10-17 10:18:09 +08:00
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# elif defined (CONFIG_IA64_XEN_GUEST)
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# include <asm/machvec_xen.h>
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2005-04-17 06:20:36 +08:00
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# elif defined (CONFIG_IA64_GENERIC)
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# ifdef MACHVEC_PLATFORM_HEADER
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# include MACHVEC_PLATFORM_HEADER
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# else
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# define platform_name ia64_mv.name
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# define platform_setup ia64_mv.setup
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# define platform_cpu_init ia64_mv.cpu_init
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# define platform_irq_init ia64_mv.irq_init
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# define platform_send_ipi ia64_mv.send_ipi
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# define platform_timer_interrupt ia64_mv.timer_interrupt
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# define platform_global_tlb_purge ia64_mv.global_tlb_purge
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# define platform_tlb_migrate_finish ia64_mv.tlb_migrate_finish
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# define platform_dma_init ia64_mv.dma_init
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2008-11-25 06:47:17 +08:00
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# define platform_dma_get_required_mask ia64_mv.dma_get_required_mask
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2009-01-05 22:36:16 +08:00
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# define platform_dma_get_ops ia64_mv.dma_get_ops
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2007-08-14 01:31:26 +08:00
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# define platform_irq_to_vector ia64_mv.irq_to_vector
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2005-04-17 06:20:36 +08:00
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# define platform_local_vector_to_irq ia64_mv.local_vector_to_irq
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# define platform_pci_get_legacy_mem ia64_mv.pci_get_legacy_mem
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# define platform_pci_legacy_read ia64_mv.pci_legacy_read
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# define platform_pci_legacy_write ia64_mv.pci_legacy_write
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# define platform_inb ia64_mv.inb
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# define platform_inw ia64_mv.inw
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# define platform_inl ia64_mv.inl
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# define platform_outb ia64_mv.outb
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# define platform_outw ia64_mv.outw
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# define platform_outl ia64_mv.outl
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# define platform_mmiowb ia64_mv.mmiowb
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# define platform_readb ia64_mv.readb
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# define platform_readw ia64_mv.readw
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# define platform_readl ia64_mv.readl
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# define platform_readq ia64_mv.readq
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# define platform_readb_relaxed ia64_mv.readb_relaxed
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# define platform_readw_relaxed ia64_mv.readw_relaxed
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# define platform_readl_relaxed ia64_mv.readl_relaxed
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# define platform_readq_relaxed ia64_mv.readq_relaxed
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2006-01-27 07:55:52 +08:00
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# define platform_migrate ia64_mv.migrate
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2006-10-04 17:16:59 +08:00
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# define platform_setup_msi_irq ia64_mv.setup_msi_irq
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# define platform_teardown_msi_irq ia64_mv.teardown_msi_irq
|
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>
2006-10-05 05:49:25 +08:00
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# define platform_pci_fixup_bus ia64_mv.pci_fixup_bus
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2007-03-18 17:26:09 +08:00
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# define platform_kernel_launch_event ia64_mv.kernel_launch_event
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2005-04-17 06:20:36 +08:00
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# endif
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/* __attribute__((__aligned__(16))) is required to make size of the
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* structure multiple of 16 bytes.
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* This will fillup the holes created because of section 3.3.1 in
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* Software Conventions guide.
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*/
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|
|
struct ia64_machine_vector {
|
|
|
|
|
const char *name;
|
|
|
|
|
ia64_mv_setup_t *setup;
|
|
|
|
|
ia64_mv_cpu_init_t *cpu_init;
|
|
|
|
|
ia64_mv_irq_init_t *irq_init;
|
|
|
|
|
ia64_mv_send_ipi_t *send_ipi;
|
|
|
|
|
ia64_mv_timer_interrupt_t *timer_interrupt;
|
|
|
|
|
ia64_mv_global_tlb_purge_t *global_tlb_purge;
|
|
|
|
|
ia64_mv_tlb_migrate_finish_t *tlb_migrate_finish;
|
|
|
|
|
ia64_mv_dma_init *dma_init;
|
2008-11-25 06:47:17 +08:00
|
|
|
ia64_mv_dma_get_required_mask *dma_get_required_mask;
|
2009-01-05 22:36:16 +08:00
|
|
|
ia64_mv_dma_get_ops *dma_get_ops;
|
2007-08-14 01:31:26 +08:00
|
|
|
ia64_mv_irq_to_vector *irq_to_vector;
|
2005-04-17 06:20:36 +08:00
|
|
|
ia64_mv_local_vector_to_irq *local_vector_to_irq;
|
|
|
|
|
ia64_mv_pci_get_legacy_mem_t *pci_get_legacy_mem;
|
|
|
|
|
ia64_mv_pci_legacy_read_t *pci_legacy_read;
|
|
|
|
|
ia64_mv_pci_legacy_write_t *pci_legacy_write;
|
|
|
|
|
ia64_mv_inb_t *inb;
|
|
|
|
|
ia64_mv_inw_t *inw;
|
|
|
|
|
ia64_mv_inl_t *inl;
|
|
|
|
|
ia64_mv_outb_t *outb;
|
|
|
|
|
ia64_mv_outw_t *outw;
|
|
|
|
|
ia64_mv_outl_t *outl;
|
|
|
|
|
ia64_mv_mmiowb_t *mmiowb;
|
|
|
|
|
ia64_mv_readb_t *readb;
|
|
|
|
|
ia64_mv_readw_t *readw;
|
|
|
|
|
ia64_mv_readl_t *readl;
|
|
|
|
|
ia64_mv_readq_t *readq;
|
|
|
|
|
ia64_mv_readb_relaxed_t *readb_relaxed;
|
|
|
|
|
ia64_mv_readw_relaxed_t *readw_relaxed;
|
|
|
|
|
ia64_mv_readl_relaxed_t *readl_relaxed;
|
|
|
|
|
ia64_mv_readq_relaxed_t *readq_relaxed;
|
2006-01-27 07:55:52 +08:00
|
|
|
ia64_mv_migrate_t *migrate;
|
2006-10-04 17:16:59 +08:00
|
|
|
ia64_mv_setup_msi_irq_t *setup_msi_irq;
|
|
|
|
|
ia64_mv_teardown_msi_irq_t *teardown_msi_irq;
|
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>
2006-10-05 05:49:25 +08:00
|
|
|
ia64_mv_pci_fixup_bus_t *pci_fixup_bus;
|
2006-12-08 01:51:35 +08:00
|
|
|
ia64_mv_kernel_launch_event_t *kernel_launch_event;
|
2005-04-17 06:20:36 +08:00
|
|
|
} __attribute__((__aligned__(16))); /* align attrib? see above comment */
|
|
|
|
|
|
|
|
|
|
#define MACHVEC_INIT(name) \
|
|
|
|
|
{ \
|
|
|
|
|
#name, \
|
|
|
|
|
platform_setup, \
|
|
|
|
|
platform_cpu_init, \
|
|
|
|
|
platform_irq_init, \
|
|
|
|
|
platform_send_ipi, \
|
|
|
|
|
platform_timer_interrupt, \
|
|
|
|
|
platform_global_tlb_purge, \
|
|
|
|
|
platform_tlb_migrate_finish, \
|
|
|
|
|
platform_dma_init, \
|
2008-11-25 06:47:17 +08:00
|
|
|
platform_dma_get_required_mask, \
|
2009-01-05 22:36:16 +08:00
|
|
|
platform_dma_get_ops, \
|
2007-08-14 01:31:26 +08:00
|
|
|
platform_irq_to_vector, \
|
2005-04-17 06:20:36 +08:00
|
|
|
platform_local_vector_to_irq, \
|
|
|
|
|
platform_pci_get_legacy_mem, \
|
|
|
|
|
platform_pci_legacy_read, \
|
|
|
|
|
platform_pci_legacy_write, \
|
|
|
|
|
platform_inb, \
|
|
|
|
|
platform_inw, \
|
|
|
|
|
platform_inl, \
|
|
|
|
|
platform_outb, \
|
|
|
|
|
platform_outw, \
|
|
|
|
|
platform_outl, \
|
|
|
|
|
platform_mmiowb, \
|
|
|
|
|
platform_readb, \
|
|
|
|
|
platform_readw, \
|
|
|
|
|
platform_readl, \
|
|
|
|
|
platform_readq, \
|
|
|
|
|
platform_readb_relaxed, \
|
|
|
|
|
platform_readw_relaxed, \
|
|
|
|
|
platform_readl_relaxed, \
|
|
|
|
|
platform_readq_relaxed, \
|
2006-01-27 07:55:52 +08:00
|
|
|
platform_migrate, \
|
2006-10-04 17:16:59 +08:00
|
|
|
platform_setup_msi_irq, \
|
|
|
|
|
platform_teardown_msi_irq, \
|
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>
2006-10-05 05:49:25 +08:00
|
|
|
platform_pci_fixup_bus, \
|
2007-03-18 17:26:09 +08:00
|
|
|
platform_kernel_launch_event \
|
2005-04-17 06:20:36 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
extern struct ia64_machine_vector ia64_mv;
|
|
|
|
|
extern void machvec_init (const char *name);
|
2007-07-25 15:06:25 +08:00
|
|
|
extern void machvec_init_from_cmdline(const char *cmdline);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
|
|
|
|
# else
|
2008-08-02 01:13:32 +08:00
|
|
|
# error Unknown configuration. Update arch/ia64/include/asm/machvec.h.
|
2005-04-17 06:20:36 +08:00
|
|
|
# endif /* CONFIG_IA64_GENERIC */
|
|
|
|
|
|
2009-01-05 22:36:12 +08:00
|
|
|
extern void swiotlb_dma_init(void);
|
2009-01-05 22:59:02 +08:00
|
|
|
extern struct dma_map_ops *dma_get_ops(struct device *);
|
2009-01-05 22:36:12 +08:00
|
|
|
|
2005-04-17 06:20:36 +08:00
|
|
|
/*
|
|
|
|
|
* Define default versions so we can extend machvec for new platforms without having
|
|
|
|
|
* to update the machvec files for all existing platforms.
|
|
|
|
|
*/
|
|
|
|
|
#ifndef platform_setup
|
|
|
|
|
# define platform_setup machvec_setup
|
|
|
|
|
#endif
|
|
|
|
|
#ifndef platform_cpu_init
|
|
|
|
|
# define platform_cpu_init machvec_noop
|
|
|
|
|
#endif
|
|
|
|
|
#ifndef platform_irq_init
|
|
|
|
|
# define platform_irq_init machvec_noop
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
#ifndef platform_send_ipi
|
|
|
|
|
# define platform_send_ipi ia64_send_ipi /* default to architected version */
|
|
|
|
|
#endif
|
|
|
|
|
#ifndef platform_timer_interrupt
|
|
|
|
|
# define platform_timer_interrupt machvec_timer_interrupt
|
|
|
|
|
#endif
|
|
|
|
|
#ifndef platform_global_tlb_purge
|
|
|
|
|
# define platform_global_tlb_purge ia64_global_tlb_purge /* default to architected version */
|
|
|
|
|
#endif
|
|
|
|
|
#ifndef platform_tlb_migrate_finish
|
|
|
|
|
# define platform_tlb_migrate_finish machvec_noop_mm
|
|
|
|
|
#endif
|
2006-12-08 01:51:35 +08:00
|
|
|
#ifndef platform_kernel_launch_event
|
|
|
|
|
# define platform_kernel_launch_event machvec_noop
|
|
|
|
|
#endif
|
2005-04-17 06:20:36 +08:00
|
|
|
#ifndef platform_dma_init
|
2009-01-05 22:36:12 +08:00
|
|
|
# define platform_dma_init swiotlb_dma_init
|
2005-04-17 06:20:36 +08:00
|
|
|
#endif
|
2009-01-05 22:36:16 +08:00
|
|
|
#ifndef platform_dma_get_ops
|
|
|
|
|
# define platform_dma_get_ops dma_get_ops
|
|
|
|
|
#endif
|
2008-11-25 06:47:17 +08:00
|
|
|
#ifndef platform_dma_get_required_mask
|
|
|
|
|
# define platform_dma_get_required_mask ia64_dma_get_required_mask
|
|
|
|
|
#endif
|
2007-08-14 01:31:26 +08:00
|
|
|
#ifndef platform_irq_to_vector
|
|
|
|
|
# define platform_irq_to_vector __ia64_irq_to_vector
|
|
|
|
|
#endif
|
2005-04-17 06:20:36 +08:00
|
|
|
#ifndef platform_local_vector_to_irq
|
|
|
|
|
# define platform_local_vector_to_irq __ia64_local_vector_to_irq
|
|
|
|
|
#endif
|
|
|
|
|
#ifndef platform_pci_get_legacy_mem
|
|
|
|
|
# define platform_pci_get_legacy_mem ia64_pci_get_legacy_mem
|
|
|
|
|
#endif
|
|
|
|
|
#ifndef platform_pci_legacy_read
|
|
|
|
|
# define platform_pci_legacy_read ia64_pci_legacy_read
|
2006-04-20 17:49:48 +08:00
|
|
|
extern int ia64_pci_legacy_read(struct pci_bus *bus, u16 port, u32 *val, u8 size);
|
2005-04-17 06:20:36 +08:00
|
|
|
#endif
|
|
|
|
|
#ifndef platform_pci_legacy_write
|
|
|
|
|
# define platform_pci_legacy_write ia64_pci_legacy_write
|
2006-04-20 17:49:48 +08:00
|
|
|
extern int ia64_pci_legacy_write(struct pci_bus *bus, u16 port, u32 val, u8 size);
|
2005-04-17 06:20:36 +08:00
|
|
|
#endif
|
|
|
|
|
#ifndef platform_inb
|
|
|
|
|
# define platform_inb __ia64_inb
|
|
|
|
|
#endif
|
|
|
|
|
#ifndef platform_inw
|
|
|
|
|
# define platform_inw __ia64_inw
|
|
|
|
|
#endif
|
|
|
|
|
#ifndef platform_inl
|
|
|
|
|
# define platform_inl __ia64_inl
|
|
|
|
|
#endif
|
|
|
|
|
#ifndef platform_outb
|
|
|
|
|
# define platform_outb __ia64_outb
|
|
|
|
|
#endif
|
|
|
|
|
#ifndef platform_outw
|
|
|
|
|
# define platform_outw __ia64_outw
|
|
|
|
|
#endif
|
|
|
|
|
#ifndef platform_outl
|
|
|
|
|
# define platform_outl __ia64_outl
|
|
|
|
|
#endif
|
|
|
|
|
#ifndef platform_mmiowb
|
|
|
|
|
# define platform_mmiowb __ia64_mmiowb
|
|
|
|
|
#endif
|
|
|
|
|
#ifndef platform_readb
|
|
|
|
|
# define platform_readb __ia64_readb
|
|
|
|
|
#endif
|
|
|
|
|
#ifndef platform_readw
|
|
|
|
|
# define platform_readw __ia64_readw
|
|
|
|
|
#endif
|
|
|
|
|
#ifndef platform_readl
|
|
|
|
|
# define platform_readl __ia64_readl
|
|
|
|
|
#endif
|
|
|
|
|
#ifndef platform_readq
|
|
|
|
|
# define platform_readq __ia64_readq
|
|
|
|
|
#endif
|
|
|
|
|
#ifndef platform_readb_relaxed
|
|
|
|
|
# define platform_readb_relaxed __ia64_readb_relaxed
|
|
|
|
|
#endif
|
|
|
|
|
#ifndef platform_readw_relaxed
|
|
|
|
|
# define platform_readw_relaxed __ia64_readw_relaxed
|
|
|
|
|
#endif
|
|
|
|
|
#ifndef platform_readl_relaxed
|
|
|
|
|
# define platform_readl_relaxed __ia64_readl_relaxed
|
|
|
|
|
#endif
|
|
|
|
|
#ifndef platform_readq_relaxed
|
|
|
|
|
# define platform_readq_relaxed __ia64_readq_relaxed
|
|
|
|
|
#endif
|
2006-01-27 07:55:52 +08:00
|
|
|
#ifndef platform_migrate
|
|
|
|
|
# define platform_migrate machvec_noop_task
|
|
|
|
|
#endif
|
2006-10-04 17:16:59 +08:00
|
|
|
#ifndef platform_setup_msi_irq
|
|
|
|
|
# define platform_setup_msi_irq ((ia64_mv_setup_msi_irq_t*)NULL)
|
|
|
|
|
#endif
|
|
|
|
|
#ifndef platform_teardown_msi_irq
|
|
|
|
|
# define platform_teardown_msi_irq ((ia64_mv_teardown_msi_irq_t*)NULL)
|
2006-04-11 10:17:48 +08:00
|
|
|
#endif
|
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>
2006-10-05 05:49:25 +08:00
|
|
|
#ifndef platform_pci_fixup_bus
|
|
|
|
|
# define platform_pci_fixup_bus machvec_noop_bus
|
|
|
|
|
#endif
|
2005-04-17 06:20:36 +08:00
|
|
|
|
|
|
|
|
#endif /* _ASM_IA64_MACHVEC_H */
|