^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) #ifndef _ASM_X86_PCI_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) #define _ASM_X86_PCI_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) #include <linux/mm.h> /* for struct page */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) #include <linux/types.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <linux/string.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/scatterlist.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/numa.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <asm/io.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <asm/memtype.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <asm/x86_init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) struct pci_sysdata {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) int domain; /* PCI domain */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) int node; /* NUMA node */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #ifdef CONFIG_ACPI
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) struct acpi_device *companion; /* ACPI companion device */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #ifdef CONFIG_X86_64
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) void *iommu; /* IOMMU private data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #ifdef CONFIG_PCI_MSI_IRQ_DOMAIN
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) void *fwnode; /* IRQ domain for MSI assignment */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #if IS_ENABLED(CONFIG_VMD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) struct pci_dev *vmd_dev; /* VMD Device if in Intel VMD domain */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) extern int pci_routeirq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) extern int noioapicquirk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) extern int noioapicreroute;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) static inline struct pci_sysdata *to_pci_sysdata(const struct pci_bus *bus)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) return bus->sysdata;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) #ifdef CONFIG_PCI
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #ifdef CONFIG_PCI_DOMAINS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) static inline int pci_domain_nr(struct pci_bus *bus)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) return to_pci_sysdata(bus)->domain;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) static inline int pci_proc_domain(struct pci_bus *bus)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) return pci_domain_nr(bus);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) #ifdef CONFIG_PCI_MSI_IRQ_DOMAIN
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) static inline void *_pci_root_bus_fwnode(struct pci_bus *bus)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) return to_pci_sysdata(bus)->fwnode;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) #define pci_root_bus_fwnode _pci_root_bus_fwnode
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) #if IS_ENABLED(CONFIG_VMD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) static inline bool is_vmd(struct pci_bus *bus)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) return to_pci_sysdata(bus)->vmd_dev != NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) #define is_vmd(bus) false
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) #endif /* CONFIG_VMD */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) /* Can be used to override the logic in pci_scan_bus for skipping
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) already-configured bus numbers - to be used for buggy BIOSes
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) or architectures with incomplete PCI setup by the loader */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) extern unsigned int pcibios_assign_all_busses(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) extern int pci_legacy_init(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) static inline int pcibios_assign_all_busses(void) { return 0; }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) extern unsigned long pci_mem_start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) #define PCIBIOS_MIN_IO 0x1000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) #define PCIBIOS_MIN_MEM (pci_mem_start)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) #define PCIBIOS_MIN_CARDBUS_IO 0x4000
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) extern int pcibios_enabled;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) void pcibios_scan_root(int bus);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) struct irq_routing_table *pcibios_get_irq_routing_table(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) #define HAVE_PCI_MMAP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) #define arch_can_pci_mmap_wc() pat_enabled()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) #define ARCH_GENERIC_PCI_MMAP_RESOURCE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) #ifdef CONFIG_PCI
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) extern void early_quirks(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) #else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) static inline void early_quirks(void) { }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) extern void pci_iommu_alloc(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) /* generic pci stuff */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) #include <asm-generic/pci.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) #ifdef CONFIG_NUMA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) /* Returns the node based on pci bus */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) static inline int __pcibus_to_node(const struct pci_bus *bus)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) return to_pci_sysdata(bus)->node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) static inline const struct cpumask *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) cpumask_of_pcibus(const struct pci_bus *bus)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) int node;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) node = __pcibus_to_node(bus);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) return (node == NUMA_NO_NODE) ? cpu_online_mask :
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) cpumask_of_node(node);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) struct pci_setup_rom {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) struct setup_data data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) uint16_t vendor;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) uint16_t devid;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) uint64_t pcilen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) unsigned long segment;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) unsigned long bus;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) unsigned long device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) unsigned long function;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) uint8_t romdata[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) #endif /* _ASM_X86_PCI_H */
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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