diff options
Diffstat (limited to 'include/asm-ppc/pci.h')
| -rw-r--r-- | include/asm-ppc/pci.h | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/include/asm-ppc/pci.h b/include/asm-ppc/pci.h new file mode 100644 index 00000000000..ce5ae6d048f --- /dev/null +++ b/include/asm-ppc/pci.h @@ -0,0 +1,108 @@ +#ifndef __PPC_PCI_H +#define __PPC_PCI_H +#ifdef __KERNEL__ + +#include <linux/types.h> +#include <linux/slab.h> +#include <linux/string.h> +#include <linux/mm.h> +#include <asm/scatterlist.h> +#include <asm/io.h> +#include <asm/pci-bridge.h> +#include <asm-generic/pci-dma-compat.h> + +struct pci_dev; + +/* Values for the `which' argument to sys_pciconfig_iobase syscall. */ +#define IOBASE_BRIDGE_NUMBER 0 +#define IOBASE_MEMORY 1 +#define IOBASE_IO 2 +#define IOBASE_ISA_IO 3 +#define IOBASE_ISA_MEM 4 + +/* + * Set this to 1 if you want the kernel to re-assign all PCI + * bus numbers + */ +extern int pci_assign_all_busses; + +#define pcibios_assign_all_busses() (pci_assign_all_busses) +#define pcibios_scan_all_fns(a, b) 0 + +#define PCIBIOS_MIN_IO 0x1000 +#define PCIBIOS_MIN_MEM 0x10000000 + +extern inline void pcibios_set_master(struct pci_dev *dev) +{ + /* No special bus mastering setup handling */ +} + +extern inline void pcibios_penalize_isa_irq(int irq) +{ + /* We don't do dynamic PCI IRQ allocation */ +} + +extern unsigned long pci_resource_to_bus(struct pci_dev *pdev, struct resource *res); + +/* + * The PCI bus bridge can translate addresses issued by the processor(s) + * into a different address on the PCI bus. On 32-bit cpus, we assume + * this mapping is 1-1, but on 64-bit systems it often isn't. + * + * Obsolete ! Drivers should now use pci_resource_to_bus + */ +extern unsigned long phys_to_bus(unsigned long pa); +extern unsigned long pci_phys_to_bus(unsigned long pa, int busnr); +extern unsigned long pci_bus_to_phys(unsigned int ba, int busnr); + +/* 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 (1) + +/* pci_unmap_{page,single} is a nop so... */ +#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) +#define DECLARE_PCI_UNMAP_LEN(LEN_NAME) +#define pci_unmap_addr(PTR, ADDR_NAME) (0) +#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) do { } while (0) +#define pci_unmap_len(PTR, LEN_NAME) (0) +#define pci_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0) + +/* + * At present there are very few 32-bit PPC machines that can have + * memory above the 4GB point, and we don't support that. + */ +#define pci_dac_dma_supported(pci_dev, mask) (0) + +/* Return the index of the PCI controller for device PDEV. */ +#define pci_domain_nr(bus) ((struct pci_controller *)(bus)->sysdata)->index + +/* Set the name of the bus as it appears in /proc/bus/pci */ +static inline int pci_proc_domain(struct pci_bus *bus) +{ + return 0; +} + +/* 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 + +extern void +pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region, + struct resource *res); + +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 /* __PPC_PCI_H */ |