fs: use kmem_cache_zalloc instead
[pv_ops_mirror.git] / include / asm-x86 / pci.h
blobe883619663476e7f0659e6ebafb3c5d1a6712870
1 #ifndef __x86_PCI_H
2 #define __x86_PCI_H
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>
12 #ifdef __KERNEL__
14 struct pci_sysdata {
15 int domain; /* PCI domain */
16 int node; /* NUMA node */
17 #ifdef CONFIG_X86_64
18 void* iommu; /* IOMMU private data */
19 #endif
22 /* scan a bus after allocating a pci_sysdata for it */
23 extern struct pci_bus *pci_scan_bus_with_sysdata(int busno);
25 static inline int pci_domain_nr(struct pci_bus *bus)
27 struct pci_sysdata *sd = bus->sysdata;
28 return sd->domain;
31 static inline int pci_proc_domain(struct pci_bus *bus)
33 return pci_domain_nr(bus);
37 /* Can be used to override the logic in pci_scan_bus for skipping
38 already-configured bus numbers - to be used for buggy BIOSes
39 or architectures with incomplete PCI setup by the loader */
41 #ifdef CONFIG_PCI
42 extern unsigned int pcibios_assign_all_busses(void);
43 #else
44 #define pcibios_assign_all_busses() 0
45 #endif
46 #define pcibios_scan_all_fns(a, b) 0
48 extern unsigned long pci_mem_start;
49 #define PCIBIOS_MIN_IO 0x1000
50 #define PCIBIOS_MIN_MEM (pci_mem_start)
52 #define PCIBIOS_MIN_CARDBUS_IO 0x4000
54 void pcibios_config_init(void);
55 struct pci_bus * pcibios_scan_root(int bus);
57 void pcibios_set_master(struct pci_dev *dev);
58 void pcibios_penalize_isa_irq(int irq, int active);
59 struct irq_routing_table *pcibios_get_irq_routing_table(void);
60 int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq);
63 #define HAVE_PCI_MMAP
64 extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
65 enum pci_mmap_state mmap_state, int write_combine);
68 #ifdef CONFIG_PCI
69 static inline void pci_dma_burst_advice(struct pci_dev *pdev,
70 enum pci_dma_burst_strategy *strat,
71 unsigned long *strategy_parameter)
73 *strat = PCI_DMA_BURST_INFINITY;
74 *strategy_parameter = ~0UL;
76 #endif
79 #endif /* __KERNEL__ */
81 #ifdef CONFIG_X86_32
82 # include "pci_32.h"
83 #else
84 # include "pci_64.h"
85 #endif
87 /* implement the pci_ DMA API in terms of the generic device dma_ one */
88 #include <asm-generic/pci-dma-compat.h>
90 /* generic pci stuff */
91 #include <asm-generic/pci.h>
95 #endif