diff options
Diffstat (limited to 'include/asm-ppc64/pci.h')
| -rw-r--r-- | include/asm-ppc64/pci.h | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/include/asm-ppc64/pci.h b/include/asm-ppc64/pci.h new file mode 100644 index 00000000000..6cd593f660a --- /dev/null +++ b/include/asm-ppc64/pci.h @@ -0,0 +1,142 @@ +#ifndef __PPC64_PCI_H +#define __PPC64_PCI_H +#ifdef __KERNEL__ + +/* + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version + * 2 of the License, or (at your option) any later version. + */ + +#include <linux/types.h> +#include <linux/slab.h> +#include <linux/string.h> +#include <linux/dma-mapping.h> + +#include <asm/machdep.h> +#include <asm/scatterlist.h> +#include <asm/io.h> +#include <asm/prom.h> + +#include <asm-generic/pci-dma-compat.h> + +#define PCIBIOS_MIN_IO 0x1000 +#define PCIBIOS_MIN_MEM 0x10000000 + +struct pci_dev; + +#ifdef CONFIG_PPC_ISERIES +#define pcibios_scan_all_fns(a, b) 0 +#else +extern int pcibios_scan_all_fns(struct pci_bus *bus, int devfn); +#endif + +static inline void pcibios_set_master(struct pci_dev *dev) +{ + /* No special bus mastering setup handling */ +} + +static inline void pcibios_penalize_isa_irq(int irq) +{ + /* We don't do dynamic PCI IRQ allocation */ +} + +#define HAVE_ARCH_PCI_GET_LEGACY_IDE_IRQ +static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel) +{ + if (ppc_md.pci_get_legacy_ide_irq) + return ppc_md.pci_get_legacy_ide_irq(dev, channel); + return channel ? 15 : 14; +} + +#define HAVE_ARCH_PCI_MWI 1 +static inline int pcibios_prep_mwi(struct pci_dev *dev) +{ + /* + * We would like to avoid touching the cacheline size or MWI bit + * but we cant do that with the current pcibios_prep_mwi + * interface. pSeries firmware sets the cacheline size (which is not + * the cpu cacheline size in all cases) and hardware treats MWI + * the same as memory write. So we dont touch the cacheline size + * here and allow the generic code to set the MWI bit. + */ + return 0; +} + +extern unsigned int pcibios_assign_all_busses(void); + +extern struct dma_mapping_ops pci_dma_ops; + +/* For DAC DMA, we currently don't support it by default, but + * we let the platform override this + */ +static inline int pci_dac_dma_supported(struct pci_dev *hwdev,u64 mask) +{ + if (pci_dma_ops.dac_dma_supported) + return pci_dma_ops.dac_dma_supported(&hwdev->dev, mask); + return 0; +} + +extern int pci_domain_nr(struct pci_bus *bus); + +/* Decide whether to display the domain number in /proc */ +extern int pci_proc_domain(struct pci_bus *bus); + +struct vm_area_struct; +/* Map a range of PCI memory or I/O space for a device into user space */ +int pci_mmap_page_range(struct pci_dev *pdev, struct vm_area_struct *vma, + enum pci_mmap_state mmap_state, int write_combine); + +/* Tell drivers/pci/proc.c that we have pci_mmap_page_range() */ +#define HAVE_PCI_MMAP 1 + +/* pci_unmap_{single,page} is not a nop, thus... */ +#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) \ + dma_addr_t ADDR_NAME; +#define DECLARE_PCI_UNMAP_LEN(LEN_NAME) \ + __u32 LEN_NAME; +#define pci_unmap_addr(PTR, ADDR_NAME) \ + ((PTR)->ADDR_NAME) +#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) \ + (((PTR)->ADDR_NAME) = (VAL)) +#define pci_unmap_len(PTR, LEN_NAME) \ + ((PTR)->LEN_NAME) +#define pci_unmap_len_set(PTR, LEN_NAME, VAL) \ + (((PTR)->LEN_NAME) = (VAL)) + +/* The PCI address space does equal the physical memory + * address space. The networking and block device layers use + * this boolean for bounce buffer decisions. + */ +#define PCI_DMA_BUS_IS_PHYS (0) + +extern void +pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region, + struct resource *res); + +extern int +unmap_bus_range(struct pci_bus *bus); + +extern int +remap_bus_range(struct pci_bus *bus); + +extern void +pcibios_fixup_device_resources(struct pci_dev *dev, struct pci_bus *bus); + +extern struct pci_controller *init_phb_dynamic(struct device_node *dn); + +extern int pci_read_irq_line(struct pci_dev *dev); + +extern void pcibios_add_platform_entries(struct pci_dev *dev); + +struct file; +extern pgprot_t pci_phys_mem_access_prot(struct file *file, + unsigned long offset, + unsigned long size, + pgprot_t prot); + + +#endif /* __KERNEL__ */ + +#endif /* __PPC64_PCI_H */ |