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141 lines
3.1 KiB
141 lines
3.1 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef _ASM_X86_PCI_H |
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#define _ASM_X86_PCI_H |
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#include <linux/mm.h> /* for struct page */ |
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#include <linux/types.h> |
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#include <linux/slab.h> |
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#include <linux/string.h> |
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#include <linux/scatterlist.h> |
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#include <linux/numa.h> |
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#include <asm/io.h> |
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#include <asm/memtype.h> |
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#include <asm/x86_init.h> |
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struct pci_sysdata { |
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int domain; /* PCI domain */ |
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int node; /* NUMA node */ |
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#ifdef CONFIG_ACPI |
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struct acpi_device *companion; /* ACPI companion device */ |
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#endif |
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#ifdef CONFIG_X86_64 |
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void *iommu; /* IOMMU private data */ |
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#endif |
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#ifdef CONFIG_PCI_MSI_IRQ_DOMAIN |
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void *fwnode; /* IRQ domain for MSI assignment */ |
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#endif |
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#if IS_ENABLED(CONFIG_VMD) |
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struct pci_dev *vmd_dev; /* VMD Device if in Intel VMD domain */ |
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#endif |
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}; |
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extern int pci_routeirq; |
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extern int noioapicquirk; |
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extern int noioapicreroute; |
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static inline struct pci_sysdata *to_pci_sysdata(const struct pci_bus *bus) |
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{ |
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return bus->sysdata; |
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} |
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#ifdef CONFIG_PCI |
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#ifdef CONFIG_PCI_DOMAINS |
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static inline int pci_domain_nr(struct pci_bus *bus) |
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{ |
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return to_pci_sysdata(bus)->domain; |
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} |
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static inline int pci_proc_domain(struct pci_bus *bus) |
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{ |
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return pci_domain_nr(bus); |
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} |
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#endif |
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#ifdef CONFIG_PCI_MSI_IRQ_DOMAIN |
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static inline void *_pci_root_bus_fwnode(struct pci_bus *bus) |
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{ |
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return to_pci_sysdata(bus)->fwnode; |
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} |
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#define pci_root_bus_fwnode _pci_root_bus_fwnode |
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#endif |
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#if IS_ENABLED(CONFIG_VMD) |
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static inline bool is_vmd(struct pci_bus *bus) |
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{ |
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return to_pci_sysdata(bus)->vmd_dev != NULL; |
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} |
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#else |
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#define is_vmd(bus) false |
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#endif /* CONFIG_VMD */ |
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/* Can be used to override the logic in pci_scan_bus for skipping |
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already-configured bus numbers - to be used for buggy BIOSes |
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or architectures with incomplete PCI setup by the loader */ |
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extern unsigned int pcibios_assign_all_busses(void); |
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extern int pci_legacy_init(void); |
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#else |
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static inline int pcibios_assign_all_busses(void) { return 0; } |
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#endif |
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extern unsigned long pci_mem_start; |
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#define PCIBIOS_MIN_IO 0x1000 |
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#define PCIBIOS_MIN_MEM (pci_mem_start) |
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#define PCIBIOS_MIN_CARDBUS_IO 0x4000 |
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extern int pcibios_enabled; |
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void pcibios_scan_root(int bus); |
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struct irq_routing_table *pcibios_get_irq_routing_table(void); |
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int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq); |
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#define HAVE_PCI_MMAP |
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#define arch_can_pci_mmap_wc() pat_enabled() |
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#define ARCH_GENERIC_PCI_MMAP_RESOURCE |
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#ifdef CONFIG_PCI |
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extern void early_quirks(void); |
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#else |
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static inline void early_quirks(void) { } |
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#endif |
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extern void pci_iommu_alloc(void); |
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/* generic pci stuff */ |
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#include <asm-generic/pci.h> |
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#ifdef CONFIG_NUMA |
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/* Returns the node based on pci bus */ |
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static inline int __pcibus_to_node(const struct pci_bus *bus) |
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{ |
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return to_pci_sysdata(bus)->node; |
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} |
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static inline const struct cpumask * |
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cpumask_of_pcibus(const struct pci_bus *bus) |
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{ |
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int node; |
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node = __pcibus_to_node(bus); |
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return (node == NUMA_NO_NODE) ? cpu_online_mask : |
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cpumask_of_node(node); |
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} |
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#endif |
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struct pci_setup_rom { |
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struct setup_data data; |
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uint16_t vendor; |
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uint16_t devid; |
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uint64_t pcilen; |
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unsigned long segment; |
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unsigned long bus; |
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unsigned long device; |
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unsigned long function; |
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uint8_t romdata[0]; |
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}; |
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#endif /* _ASM_X86_PCI_H */
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