arch/sparc/include/asm/pci.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef ___ASM_SPARC_PCI_H
   3 #define ___ASM_SPARC_PCI_H
   4
   5
   6 /* Can be used to override the logic in pci_scan_bus for skipping
   7  * already-configured bus numbers - to be used for buggy BIOSes
   8  * or architectures with incomplete PCI setup by the loader.
   9  */
  10 #define pcibios_assign_all_busses()     0
  11
  12 #define PCIBIOS_MIN_IO          0UL
  13 #define PCIBIOS_MIN_MEM         0UL
  14
  15 #define PCI_IRQ_NONE            0xffffffff
  16
  17
  18 #ifdef CONFIG_SPARC64
  19
  20 /* PCI IOMMU mapping bypass support. */
  21
  22 /* PCI 64-bit addressing works for all slots on all controller
  23  * types on sparc64.  However, it requires that the device
  24  * can drive enough of the 64 bits.
  25  */
  26 #define PCI64_REQUIRED_MASK     (~(u64)0)
  27 #define PCI64_ADDR_BASE         0xfffc000000000000UL
  28
  29 /* Return the index of the PCI controller for device PDEV. */
  30 int pci_domain_nr(struct pci_bus *bus);
  31 static inline int pci_proc_domain(struct pci_bus *bus)
  32 {
  33         return 1;
  34 }
  35
  36 /* Platform support for /proc/bus/pci/X/Y mmap()s. */
  37 #define HAVE_PCI_MMAP
  38 #define arch_can_pci_mmap_io()  1
  39 #define HAVE_ARCH_PCI_GET_UNMAPPED_AREA
  40 #define get_pci_unmapped_area get_fb_unmapped_area
  41 #endif /* CONFIG_SPARC64 */
  42
  43 #if defined(CONFIG_SPARC64) || defined(CONFIG_LEON_PCI)
  44 static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
  45 {
  46         return PCI_IRQ_NONE;
  47 }
  48 #else
  49 #include <asm-generic/pci.h>
  50 #endif
  51
  52 #endif /* ___ASM_SPARC_PCI_H */