H. Peter Anvin | 1965aae | 2008-10-22 22:26:29 -0700 | [diff] [blame] | 1 | #ifndef _ASM_X86_PCI_H |
| 2 | #define _ASM_X86_PCI_H |
Greg Kroah-Hartman | f3e6f16 | 2007-10-12 14:07:23 -0700 | [diff] [blame] | 3 | |
| 4 | #include <linux/mm.h> /* for struct page */ |
| 5 | #include <linux/types.h> |
| 6 | #include <linux/slab.h> |
| 7 | #include <linux/string.h> |
Christoph Hellwig | 84be456 | 2015-05-01 12:46:15 +0200 | [diff] [blame] | 8 | #include <linux/scatterlist.h> |
Greg Kroah-Hartman | f3e6f16 | 2007-10-12 14:07:23 -0700 | [diff] [blame] | 9 | #include <asm/io.h> |
Stefano Stabellini | 294ee6f | 2010-10-06 16:12:28 -0400 | [diff] [blame] | 10 | #include <asm/x86_init.h> |
Greg Kroah-Hartman | f3e6f16 | 2007-10-12 14:07:23 -0700 | [diff] [blame] | 11 | |
Greg Kroah-Hartman | f3e6f16 | 2007-10-12 14:07:23 -0700 | [diff] [blame] | 12 | #ifdef __KERNEL__ |
| 13 | |
| 14 | struct pci_sysdata { |
| 15 | int domain; /* PCI domain */ |
| 16 | int node; /* NUMA node */ |
Rafael J. Wysocki | 6c0cc95 | 2013-01-09 22:33:37 +0100 | [diff] [blame] | 17 | #ifdef CONFIG_ACPI |
Rafael J. Wysocki | 7b19981 | 2013-11-11 22:41:56 +0100 | [diff] [blame] | 18 | struct acpi_device *companion; /* ACPI companion device */ |
Rafael J. Wysocki | 6c0cc95 | 2013-01-09 22:33:37 +0100 | [diff] [blame] | 19 | #endif |
Greg Kroah-Hartman | f3e6f16 | 2007-10-12 14:07:23 -0700 | [diff] [blame] | 20 | #ifdef CONFIG_X86_64 |
Joe Perches | 69bdb7b | 2008-03-23 01:03:04 -0700 | [diff] [blame] | 21 | void *iommu; /* IOMMU private data */ |
Greg Kroah-Hartman | f3e6f16 | 2007-10-12 14:07:23 -0700 | [diff] [blame] | 22 | #endif |
| 23 | }; |
| 24 | |
Thomas Gleixner | 0715650 | 2008-05-12 15:43:37 +0200 | [diff] [blame] | 25 | extern int pci_routeirq; |
Ingo Molnar | 7a9787e | 2008-10-28 16:26:12 +0100 | [diff] [blame] | 26 | extern int noioapicquirk; |
| 27 | extern int noioapicreroute; |
Thomas Gleixner | 0715650 | 2008-05-12 15:43:37 +0200 | [diff] [blame] | 28 | |
Jesse Barnes | 23b90cf | 2010-08-17 09:15:24 -0700 | [diff] [blame] | 29 | #ifdef CONFIG_PCI |
| 30 | |
| 31 | #ifdef CONFIG_PCI_DOMAINS |
Greg Kroah-Hartman | f3e6f16 | 2007-10-12 14:07:23 -0700 | [diff] [blame] | 32 | static inline int pci_domain_nr(struct pci_bus *bus) |
| 33 | { |
| 34 | struct pci_sysdata *sd = bus->sysdata; |
| 35 | return sd->domain; |
| 36 | } |
| 37 | |
| 38 | static inline int pci_proc_domain(struct pci_bus *bus) |
| 39 | { |
| 40 | return pci_domain_nr(bus); |
| 41 | } |
Jesse Barnes | 23b90cf | 2010-08-17 09:15:24 -0700 | [diff] [blame] | 42 | #endif |
Greg Kroah-Hartman | f3e6f16 | 2007-10-12 14:07:23 -0700 | [diff] [blame] | 43 | |
| 44 | /* Can be used to override the logic in pci_scan_bus for skipping |
| 45 | already-configured bus numbers - to be used for buggy BIOSes |
| 46 | or architectures with incomplete PCI setup by the loader */ |
| 47 | |
Greg Kroah-Hartman | f3e6f16 | 2007-10-12 14:07:23 -0700 | [diff] [blame] | 48 | extern unsigned int pcibios_assign_all_busses(void); |
Thomas Gleixner | b72d0db | 2009-08-29 16:24:51 +0200 | [diff] [blame] | 49 | extern int pci_legacy_init(void); |
| 50 | # ifdef CONFIG_ACPI |
| 51 | # define x86_default_pci_init pci_acpi_init |
| 52 | # else |
| 53 | # define x86_default_pci_init pci_legacy_init |
| 54 | # endif |
Greg Kroah-Hartman | f3e6f16 | 2007-10-12 14:07:23 -0700 | [diff] [blame] | 55 | #else |
Thomas Gleixner | b72d0db | 2009-08-29 16:24:51 +0200 | [diff] [blame] | 56 | # define pcibios_assign_all_busses() 0 |
| 57 | # define x86_default_pci_init NULL |
Greg Kroah-Hartman | f3e6f16 | 2007-10-12 14:07:23 -0700 | [diff] [blame] | 58 | #endif |
Greg Kroah-Hartman | f3e6f16 | 2007-10-12 14:07:23 -0700 | [diff] [blame] | 59 | |
| 60 | extern unsigned long pci_mem_start; |
| 61 | #define PCIBIOS_MIN_IO 0x1000 |
| 62 | #define PCIBIOS_MIN_MEM (pci_mem_start) |
| 63 | |
| 64 | #define PCIBIOS_MIN_CARDBUS_IO 0x4000 |
| 65 | |
Matthieu Castet | 5bd5a45 | 2010-11-16 22:31:26 +0100 | [diff] [blame] | 66 | extern int pcibios_enabled; |
Greg Kroah-Hartman | f3e6f16 | 2007-10-12 14:07:23 -0700 | [diff] [blame] | 67 | void pcibios_config_init(void); |
Bjorn Helgaas | 49886cf | 2014-01-28 16:40:36 -0700 | [diff] [blame] | 68 | void pcibios_scan_root(int bus); |
Greg Kroah-Hartman | f3e6f16 | 2007-10-12 14:07:23 -0700 | [diff] [blame] | 69 | |
| 70 | void pcibios_set_master(struct pci_dev *dev); |
Greg Kroah-Hartman | f3e6f16 | 2007-10-12 14:07:23 -0700 | [diff] [blame] | 71 | struct irq_routing_table *pcibios_get_irq_routing_table(void); |
| 72 | int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq); |
| 73 | |
| 74 | |
| 75 | #define HAVE_PCI_MMAP |
| 76 | extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma, |
Joe Perches | 69bdb7b | 2008-03-23 01:03:04 -0700 | [diff] [blame] | 77 | enum pci_mmap_state mmap_state, |
| 78 | int write_combine); |
Greg Kroah-Hartman | f3e6f16 | 2007-10-12 14:07:23 -0700 | [diff] [blame] | 79 | |
| 80 | |
| 81 | #ifdef CONFIG_PCI |
Thomas Gleixner | 376ff03 | 2008-01-30 13:30:16 +0100 | [diff] [blame] | 82 | extern void early_quirks(void); |
Thomas Gleixner | 376ff03 | 2008-01-30 13:30:16 +0100 | [diff] [blame] | 83 | #else |
| 84 | static inline void early_quirks(void) { } |
Greg Kroah-Hartman | f3e6f16 | 2007-10-12 14:07:23 -0700 | [diff] [blame] | 85 | #endif |
| 86 | |
Jeremy Fitzhardinge | cfb80c9 | 2008-12-16 12:17:36 -0800 | [diff] [blame] | 87 | extern void pci_iommu_alloc(void); |
| 88 | |
Stefano Stabellini | 294ee6f | 2010-10-06 16:12:28 -0400 | [diff] [blame] | 89 | #ifdef CONFIG_PCI_MSI |
Stefano Stabellini | 294ee6f | 2010-10-06 16:12:28 -0400 | [diff] [blame] | 90 | /* implemented in arch/x86/kernel/apic/io_apic. */ |
Joerg Roedel | 5afba62 | 2012-09-26 12:44:38 +0200 | [diff] [blame] | 91 | struct msi_desc; |
Stefano Stabellini | 294ee6f | 2010-10-06 16:12:28 -0400 | [diff] [blame] | 92 | int native_setup_msi_irqs(struct pci_dev *dev, int nvec, int type); |
| 93 | void native_teardown_msi_irq(unsigned int irq); |
DuanZhenzhong | ac8344c | 2013-12-04 13:09:16 +0800 | [diff] [blame] | 94 | void native_restore_msi_irqs(struct pci_dev *dev); |
Stefano Stabellini | 294ee6f | 2010-10-06 16:12:28 -0400 | [diff] [blame] | 95 | #else |
| 96 | #define native_setup_msi_irqs NULL |
| 97 | #define native_teardown_msi_irq NULL |
Stefano Stabellini | 294ee6f | 2010-10-06 16:12:28 -0400 | [diff] [blame] | 98 | #endif |
Michael Ellerman | 11df1f0 | 2009-01-19 11:31:00 +1100 | [diff] [blame] | 99 | |
Joerg Roedel | 67796bf | 2009-04-02 15:55:55 +0200 | [diff] [blame] | 100 | #define PCI_DMA_BUS_IS_PHYS (dma_ops->is_phys) |
| 101 | |
Greg Kroah-Hartman | f3e6f16 | 2007-10-12 14:07:23 -0700 | [diff] [blame] | 102 | #endif /* __KERNEL__ */ |
| 103 | |
Joerg Roedel | 67796bf | 2009-04-02 15:55:55 +0200 | [diff] [blame] | 104 | #ifdef CONFIG_X86_64 |
David Howells | a1ce392 | 2012-10-02 18:01:25 +0100 | [diff] [blame] | 105 | #include <asm/pci_64.h> |
Thomas Gleixner | 96a388d | 2007-10-11 11:20:03 +0200 | [diff] [blame] | 106 | #endif |
Greg Kroah-Hartman | f3e6f16 | 2007-10-12 14:07:23 -0700 | [diff] [blame] | 107 | |
| 108 | /* 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> |
| 113 | |
Thomas Gleixner | b4ea929 | 2008-01-30 13:30:38 +0100 | [diff] [blame] | 114 | #ifdef CONFIG_NUMA |
| 115 | /* Returns the node based on pci bus */ |
Rusty Russell | 393d68f | 2008-12-26 22:23:38 +1030 | [diff] [blame] | 116 | static inline int __pcibus_to_node(const struct pci_bus *bus) |
Thomas Gleixner | b4ea929 | 2008-01-30 13:30:38 +0100 | [diff] [blame] | 117 | { |
Rusty Russell | 393d68f | 2008-12-26 22:23:38 +1030 | [diff] [blame] | 118 | const struct pci_sysdata *sd = bus->sysdata; |
Greg Kroah-Hartman | f3e6f16 | 2007-10-12 14:07:23 -0700 | [diff] [blame] | 119 | |
Thomas Gleixner | b4ea929 | 2008-01-30 13:30:38 +0100 | [diff] [blame] | 120 | return sd->node; |
| 121 | } |
| 122 | |
Rusty Russell | 393d68f | 2008-12-26 22:23:38 +1030 | [diff] [blame] | 123 | static inline const struct cpumask * |
| 124 | cpumask_of_pcibus(const struct pci_bus *bus) |
| 125 | { |
David Rientjes | 7715a1e | 2009-09-18 03:41:10 -0700 | [diff] [blame] | 126 | int node; |
| 127 | |
| 128 | node = __pcibus_to_node(bus); |
| 129 | return (node == -1) ? cpu_online_mask : |
| 130 | cpumask_of_node(node); |
Rusty Russell | 393d68f | 2008-12-26 22:23:38 +1030 | [diff] [blame] | 131 | } |
Thomas Gleixner | b4ea929 | 2008-01-30 13:30:38 +0100 | [diff] [blame] | 132 | #endif |
Greg Kroah-Hartman | f3e6f16 | 2007-10-12 14:07:23 -0700 | [diff] [blame] | 133 | |
Matthew Garrett | dd5fc85 | 2012-12-05 14:33:26 -0700 | [diff] [blame] | 134 | struct pci_setup_rom { |
| 135 | struct setup_data data; |
| 136 | uint16_t vendor; |
| 137 | uint16_t devid; |
| 138 | uint64_t pcilen; |
| 139 | unsigned long segment; |
| 140 | unsigned long bus; |
| 141 | unsigned long device; |
| 142 | unsigned long function; |
| 143 | uint8_t romdata[0]; |
| 144 | }; |
| 145 | |
H. Peter Anvin | 1965aae | 2008-10-22 22:26:29 -0700 | [diff] [blame] | 146 | #endif /* _ASM_X86_PCI_H */ |