1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _ASM_IA64_PCI_H 3 #define _ASM_IA64_PCI_H 4 5 #include <linux/mm.h> 6 #include <linux/slab.h> 7 #include <linux/spinlock.h> 8 #include <linux/string.h> 9 #include <linux/types.h> 10 #include <linux/scatterlist.h> 11 12 #include <asm/io.h> 13 #include <asm/hw_irq.h> 14 15 struct pci_vector_struct { 16 __u16 segment; /* PCI Segment number */ 17 __u16 bus; /* PCI Bus number */ 18 __u32 pci_id; /* ACPI split 16 bits device, 16 bits function (see section 6.1.1) */ 19 __u8 pin; /* PCI PIN (0 = A, 1 = B, 2 = C, 3 = D) */ 20 __u32 irq; /* IRQ assigned */ 21 }; 22 23 /* 24 * Can be used to override the logic in pci_scan_bus for skipping already-configured bus 25 * numbers - to be used for buggy BIOSes or architectures with incomplete PCI setup by the 26 * loader. 27 */ 28 #define pcibios_assign_all_busses() 0 29 30 #define PCIBIOS_MIN_IO 0x1000 31 #define PCIBIOS_MIN_MEM 0x10000000 32 33 #define HAVE_PCI_MMAP 34 #define ARCH_GENERIC_PCI_MMAP_RESOURCE 35 #define arch_can_pci_mmap_wc() 1 36 37 #define HAVE_PCI_LEGACY 38 extern int pci_mmap_legacy_page_range(struct pci_bus *bus, 39 struct vm_area_struct *vma, 40 enum pci_mmap_state mmap_state); 41 42 #define pci_get_legacy_mem platform_pci_get_legacy_mem 43 #define pci_legacy_read platform_pci_legacy_read 44 #define pci_legacy_write platform_pci_legacy_write 45 46 struct pci_controller { 47 struct acpi_device *companion; 48 void *iommu; 49 int segment; 50 int node; /* nearest node with memory or NUMA_NO_NODE for global allocation */ 51 52 void *platform_data; 53 }; 54 55 56 #define PCI_CONTROLLER(busdev) ((struct pci_controller *) busdev->sysdata) 57 #define pci_domain_nr(busdev) (PCI_CONTROLLER(busdev)->segment) 58 59 extern struct pci_ops pci_root_ops; 60 61 static inline int pci_proc_domain(struct pci_bus *bus) 62 { 63 return (pci_domain_nr(bus) != 0); 64 } 65 66 #define HAVE_ARCH_PCI_GET_LEGACY_IDE_IRQ 67 static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel) 68 { 69 return channel ? isa_irq_to_vector(15) : isa_irq_to_vector(14); 70 } 71 72 #ifdef CONFIG_INTEL_IOMMU 73 extern void pci_iommu_alloc(void); 74 #endif 75 #endif /* _ASM_IA64_PCI_H */ 76