include/linux/platform_data/x86/p2sb.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * Primary to Sideband (P2SB) bridge access support
   4  */
   5
   6 #ifndef _PLATFORM_DATA_X86_P2SB_H
   7 #define _PLATFORM_DATA_X86_P2SB_H
   8
   9 #include <linux/errno.h>
  10 #include <linux/kconfig.h>
  11
  12 struct pci_bus;
  13 struct resource;
  14
  15 #if IS_BUILTIN(CONFIG_P2SB)
  16
  17 int p2sb_bar(struct pci_bus *bus, unsigned int devfn, struct resource *mem);
  18
  19 #else /* CONFIG_P2SB */
  20
  21 static inline int p2sb_bar(struct pci_bus *bus, unsigned int devfn, struct resource *mem)
  22 {
  23         return -ENODEV;
  24 }
  25
  26 #endif /* CONFIG_P2SB is not set */
  27
  28 #endif /* _PLATFORM_DATA_X86_P2SB_H */