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H. Peter Anvin1965aae2008-10-22 22:26:29 -07001#ifndef _ASM_X86_PCI_H
2#define _ASM_X86_PCI_H
Greg Kroah-Hartmanf3e6f162007-10-12 14:07:23 -07003
4#include <linux/mm.h> /* for struct page */
5#include <linux/types.h>
6#include <linux/slab.h>
7#include <linux/string.h>
8#include <asm/scatterlist.h>
9#include <asm/io.h>
10
Greg Kroah-Hartmanf3e6f162007-10-12 14:07:23 -070011#ifdef __KERNEL__
12
13struct pci_sysdata {
14 int domain; /* PCI domain */
15 int node; /* NUMA node */
16#ifdef CONFIG_X86_64
Joe Perches69bdb7b2008-03-23 01:03:04 -070017 void *iommu; /* IOMMU private data */
Greg Kroah-Hartmanf3e6f162007-10-12 14:07:23 -070018#endif
19};
20
Thomas Gleixner07156502008-05-12 15:43:37 +020021extern int pci_routeirq;
Ingo Molnar7a9787e2008-10-28 16:26:12 +010022extern int noioapicquirk;
23extern int noioapicreroute;
Thomas Gleixner07156502008-05-12 15:43:37 +020024
Greg Kroah-Hartmanf3e6f162007-10-12 14:07:23 -070025/* scan a bus after allocating a pci_sysdata for it */
Yinghai Lu871d5f82008-02-19 03:20:09 -080026extern struct pci_bus *pci_scan_bus_on_node(int busno, struct pci_ops *ops,
27 int node);
Greg Kroah-Hartmanf3e6f162007-10-12 14:07:23 -070028extern struct pci_bus *pci_scan_bus_with_sysdata(int busno);
29
30static inline int pci_domain_nr(struct pci_bus *bus)
31{
32 struct pci_sysdata *sd = bus->sysdata;
33 return sd->domain;
34}
35
36static inline int pci_proc_domain(struct pci_bus *bus)
37{
38 return pci_domain_nr(bus);
39}
40
41
42/* Can be used to override the logic in pci_scan_bus for skipping
43 already-configured bus numbers - to be used for buggy BIOSes
44 or architectures with incomplete PCI setup by the loader */
45
46#ifdef CONFIG_PCI
47extern unsigned int pcibios_assign_all_busses(void);
Thomas Gleixnerb72d0db2009-08-29 16:24:51 +020048extern int pci_legacy_init(void);
49# ifdef CONFIG_ACPI
50# define x86_default_pci_init pci_acpi_init
51# else
52# define x86_default_pci_init pci_legacy_init
53# endif
Greg Kroah-Hartmanf3e6f162007-10-12 14:07:23 -070054#else
Thomas Gleixnerb72d0db2009-08-29 16:24:51 +020055# define pcibios_assign_all_busses() 0
56# define x86_default_pci_init NULL
Greg Kroah-Hartmanf3e6f162007-10-12 14:07:23 -070057#endif
Greg Kroah-Hartmanf3e6f162007-10-12 14:07:23 -070058
59extern unsigned long pci_mem_start;
60#define PCIBIOS_MIN_IO 0x1000
61#define PCIBIOS_MIN_MEM (pci_mem_start)
62
63#define PCIBIOS_MIN_CARDBUS_IO 0x4000
64
65void pcibios_config_init(void);
Joe Perches69bdb7b2008-03-23 01:03:04 -070066struct pci_bus *pcibios_scan_root(int bus);
Greg Kroah-Hartmanf3e6f162007-10-12 14:07:23 -070067
68void pcibios_set_master(struct pci_dev *dev);
69void pcibios_penalize_isa_irq(int irq, int active);
70struct irq_routing_table *pcibios_get_irq_routing_table(void);
71int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq);
72
73
74#define HAVE_PCI_MMAP
75extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
Joe Perches69bdb7b2008-03-23 01:03:04 -070076 enum pci_mmap_state mmap_state,
77 int write_combine);
Greg Kroah-Hartmanf3e6f162007-10-12 14:07:23 -070078
79
80#ifdef CONFIG_PCI
Thomas Gleixner376ff032008-01-30 13:30:16 +010081extern void early_quirks(void);
Greg Kroah-Hartmanf3e6f162007-10-12 14:07:23 -070082static inline void pci_dma_burst_advice(struct pci_dev *pdev,
83 enum pci_dma_burst_strategy *strat,
84 unsigned long *strategy_parameter)
85{
86 *strat = PCI_DMA_BURST_INFINITY;
87 *strategy_parameter = ~0UL;
88}
Thomas Gleixner376ff032008-01-30 13:30:16 +010089#else
90static inline void early_quirks(void) { }
Greg Kroah-Hartmanf3e6f162007-10-12 14:07:23 -070091#endif
92
Jeremy Fitzhardingecfb80c92008-12-16 12:17:36 -080093extern void pci_iommu_alloc(void);
94
Michael Ellerman11df1f02009-01-19 11:31:00 +110095/* MSI arch hook */
96#define arch_setup_msi_irqs arch_setup_msi_irqs
97
Joerg Roedel67796bf2009-04-02 15:55:55 +020098#define PCI_DMA_BUS_IS_PHYS (dma_ops->is_phys)
99
Greg Kroah-Hartmanf3e6f162007-10-12 14:07:23 -0700100#endif /* __KERNEL__ */
101
Joerg Roedel67796bf2009-04-02 15:55:55 +0200102#ifdef CONFIG_X86_64
103#include "pci_64.h"
Thomas Gleixner96a388d2007-10-11 11:20:03 +0200104#endif
Greg Kroah-Hartmanf3e6f162007-10-12 14:07:23 -0700105
Yinghai Luc252a5b2010-02-10 01:20:19 -0800106void dma32_reserve_bootmem(void);
107
Greg Kroah-Hartmanf3e6f162007-10-12 14:07:23 -0700108/* implement the pci_ DMA API in terms of the generic device dma_ one */
109#include <asm-generic/pci-dma-compat.h>
110
111/* generic pci stuff */
112#include <asm-generic/pci.h>
Yinghai Lu1f82de12009-04-23 20:48:32 -0700113#define PCIBIOS_MAX_MEM_32 0xffffffff
Greg Kroah-Hartmanf3e6f162007-10-12 14:07:23 -0700114
Thomas Gleixnerb4ea9292008-01-30 13:30:38 +0100115#ifdef CONFIG_NUMA
116/* Returns the node based on pci bus */
Rusty Russell393d68f2008-12-26 22:23:38 +1030117static inline int __pcibus_to_node(const struct pci_bus *bus)
Thomas Gleixnerb4ea9292008-01-30 13:30:38 +0100118{
Rusty Russell393d68f2008-12-26 22:23:38 +1030119 const struct pci_sysdata *sd = bus->sysdata;
Greg Kroah-Hartmanf3e6f162007-10-12 14:07:23 -0700120
Thomas Gleixnerb4ea9292008-01-30 13:30:38 +0100121 return sd->node;
122}
123
Rusty Russell393d68f2008-12-26 22:23:38 +1030124static inline const struct cpumask *
125cpumask_of_pcibus(const struct pci_bus *bus)
126{
David Rientjes7715a1e2009-09-18 03:41:10 -0700127 int node;
128
129 node = __pcibus_to_node(bus);
130 return (node == -1) ? cpu_online_mask :
131 cpumask_of_node(node);
Rusty Russell393d68f2008-12-26 22:23:38 +1030132}
Thomas Gleixnerb4ea9292008-01-30 13:30:38 +0100133#endif
Greg Kroah-Hartmanf3e6f162007-10-12 14:07:23 -0700134
H. Peter Anvin1965aae2008-10-22 22:26:29 -0700135#endif /* _ASM_X86_PCI_H */