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100 lines
2.7 KiB
100 lines
2.7 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef __ALPHA_PCI_H |
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#define __ALPHA_PCI_H |
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#ifdef __KERNEL__ |
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#include <linux/spinlock.h> |
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#include <linux/dma-mapping.h> |
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#include <linux/scatterlist.h> |
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#include <asm/machvec.h> |
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/* |
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* The following structure is used to manage multiple PCI busses. |
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*/ |
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struct pci_iommu_arena; |
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struct page; |
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/* A controller. Used to manage multiple PCI busses. */ |
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struct pci_controller { |
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struct pci_controller *next; |
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struct pci_bus *bus; |
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struct resource *io_space; |
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struct resource *mem_space; |
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/* The following are for reporting to userland. The invariant is |
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that if we report a BWX-capable dense memory, we do not report |
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a sparse memory at all, even if it exists. */ |
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unsigned long sparse_mem_base; |
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unsigned long dense_mem_base; |
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unsigned long sparse_io_base; |
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unsigned long dense_io_base; |
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/* This one's for the kernel only. It's in KSEG somewhere. */ |
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unsigned long config_space_base; |
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unsigned int index; |
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/* For compatibility with current (as of July 2003) pciutils |
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and XFree86. Eventually will be removed. */ |
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unsigned int need_domain_info; |
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struct pci_iommu_arena *sg_pci; |
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struct pci_iommu_arena *sg_isa; |
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void *sysdata; |
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}; |
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/* Override the logic in pci_scan_bus for skipping already-configured |
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bus numbers. */ |
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#define pcibios_assign_all_busses() 1 |
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#define PCIBIOS_MIN_IO alpha_mv.min_io_address |
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#define PCIBIOS_MIN_MEM alpha_mv.min_mem_address |
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/* IOMMU controls. */ |
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/* TODO: integrate with include/asm-generic/pci.h ? */ |
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static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel) |
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{ |
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return channel ? 15 : 14; |
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} |
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#define pci_domain_nr(bus) ((struct pci_controller *)(bus)->sysdata)->index |
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static inline int pci_proc_domain(struct pci_bus *bus) |
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{ |
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struct pci_controller *hose = bus->sysdata; |
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return hose->need_domain_info; |
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} |
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#endif /* __KERNEL__ */ |
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/* Values for the `which' argument to sys_pciconfig_iobase. */ |
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#define IOBASE_HOSE 0 |
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#define IOBASE_SPARSE_MEM 1 |
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#define IOBASE_DENSE_MEM 2 |
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#define IOBASE_SPARSE_IO 3 |
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#define IOBASE_DENSE_IO 4 |
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#define IOBASE_ROOT_BUS 5 |
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#define IOBASE_FROM_HOSE 0x10000 |
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extern struct pci_dev *isa_bridge; |
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extern int pci_legacy_read(struct pci_bus *bus, loff_t port, u32 *val, |
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size_t count); |
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extern int pci_legacy_write(struct pci_bus *bus, loff_t port, u32 val, |
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size_t count); |
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extern int pci_mmap_legacy_page_range(struct pci_bus *bus, |
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struct vm_area_struct *vma, |
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enum pci_mmap_state mmap_state); |
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extern void pci_adjust_legacy_attr(struct pci_bus *bus, |
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enum pci_mmap_state mmap_type); |
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#define HAVE_PCI_LEGACY 1 |
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extern int pci_create_resource_files(struct pci_dev *dev); |
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extern void pci_remove_resource_files(struct pci_dev *dev); |
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#endif /* __ALPHA_PCI_H */
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