diff options
Diffstat (limited to 'arch/sparc/include/asm/pci_64.h')
| -rw-r--r-- | arch/sparc/include/asm/pci_64.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/arch/sparc/include/asm/pci_64.h b/arch/sparc/include/asm/pci_64.h new file mode 100644 index 000000000..fac778134 --- /dev/null +++ b/arch/sparc/include/asm/pci_64.h @@ -0,0 +1,52 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __SPARC64_PCI_H +#define __SPARC64_PCI_H + +#ifdef __KERNEL__ + +#include <linux/dma-mapping.h> + +/* 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 0UL +#define PCIBIOS_MIN_MEM 0UL + +#define PCI_IRQ_NONE 0xffffffff + +/* PCI IOMMU mapping bypass support. */ + +/* PCI 64-bit addressing works for all slots on all controller + * types on sparc64. However, it requires that the device + * can drive enough of the 64 bits. + */ +#define PCI64_REQUIRED_MASK (~(u64)0) +#define PCI64_ADDR_BASE 0xfffc000000000000UL + +/* Return the index of the PCI controller for device PDEV. */ + +int pci_domain_nr(struct pci_bus *bus); +static inline int pci_proc_domain(struct pci_bus *bus) +{ + return 1; +} + +/* Platform support for /proc/bus/pci/X/Y mmap()s. */ + +#define HAVE_PCI_MMAP +#define arch_can_pci_mmap_io() 1 +#define HAVE_ARCH_PCI_GET_UNMAPPED_AREA +#define get_pci_unmapped_area get_fb_unmapped_area + +static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel) +{ + return PCI_IRQ_NONE; +} + +#define HAVE_ARCH_PCI_RESOURCE_TO_USER +#endif /* __KERNEL__ */ + +#endif /* __SPARC64_PCI_H */ |