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Diffstat (limited to '')
| -rw-r--r-- | arch/ia64/include/asm/pci.h | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/arch/ia64/include/asm/pci.h b/arch/ia64/include/asm/pci.h new file mode 100644 index 000000000..780e8744b --- /dev/null +++ b/arch/ia64/include/asm/pci.h @@ -0,0 +1,75 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_IA64_PCI_H +#define _ASM_IA64_PCI_H + +#include <linux/mm.h> +#include <linux/slab.h> +#include <linux/spinlock.h> +#include <linux/string.h> +#include <linux/types.h> +#include <linux/scatterlist.h> + +#include <asm/io.h> +#include <asm/hw_irq.h> + +struct pci_vector_struct { + __u16 segment; /* PCI Segment number */ + __u16 bus; /* PCI Bus number */ + __u32 pci_id; /* ACPI split 16 bits device, 16 bits function (see section 6.1.1) */ + __u8 pin; /* PCI PIN (0 = A, 1 = B, 2 = C, 3 = D) */ + __u32 irq; /* IRQ assigned */ +}; + +/* + * Can be used to override the logic in pci_scan_bus for skipping already-configured bus + * numbers - to be used for buggy BIOSes or architectures with incomplete PCI setup by the + * loader. + */ +#define pcibios_assign_all_busses() 0 + +#define PCIBIOS_MIN_IO 0x1000 +#define PCIBIOS_MIN_MEM 0x10000000 + +#define HAVE_PCI_MMAP +#define ARCH_GENERIC_PCI_MMAP_RESOURCE +#define arch_can_pci_mmap_wc() 1 + +#define HAVE_PCI_LEGACY +extern int pci_mmap_legacy_page_range(struct pci_bus *bus, + struct vm_area_struct *vma, + enum pci_mmap_state mmap_state); + +#define pci_get_legacy_mem platform_pci_get_legacy_mem +#define pci_legacy_read platform_pci_legacy_read +#define pci_legacy_write platform_pci_legacy_write + +struct pci_controller { + struct acpi_device *companion; + void *iommu; + int segment; + int node; /* nearest node with memory or NUMA_NO_NODE for global allocation */ + + void *platform_data; +}; + + +#define PCI_CONTROLLER(busdev) ((struct pci_controller *) busdev->sysdata) +#define pci_domain_nr(busdev) (PCI_CONTROLLER(busdev)->segment) + +extern struct pci_ops pci_root_ops; + +static inline int pci_proc_domain(struct pci_bus *bus) +{ + return (pci_domain_nr(bus) != 0); +} + +#define HAVE_ARCH_PCI_GET_LEGACY_IDE_IRQ +static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel) +{ + return channel ? isa_irq_to_vector(15) : isa_irq_to_vector(14); +} + +#ifdef CONFIG_INTEL_IOMMU +extern void pci_iommu_alloc(void); +#endif +#endif /* _ASM_IA64_PCI_H */ |