1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef __ASM_PCI_H 3 #define __ASM_PCI_H 4 #ifdef __KERNEL__ 5 6 #include <linux/types.h> 7 #include <linux/slab.h> 8 #include <linux/dma-mapping.h> 9 10 #include <asm/io.h> 11 12 #define PCIBIOS_MIN_IO 0x1000 13 #define PCIBIOS_MIN_MEM 0 14 15 /* 16 * Set to 1 if the kernel should re-assign all PCI bus numbers 17 */ 18 #define pcibios_assign_all_busses() \ 19 (pci_has_flag(PCI_REASSIGN_ALL_BUS)) 20 21 #define ARCH_GENERIC_PCI_MMAP_RESOURCE 1 22 23 extern int isa_dma_bridge_buggy; 24 25 #ifdef CONFIG_PCI 26 static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel) 27 { 28 /* no legacy IRQ on arm64 */ 29 return -ENODEV; 30 } 31 32 static inline int pci_proc_domain(struct pci_bus *bus) 33 { 34 return 1; 35 } 36 #endif /* CONFIG_PCI */ 37 38 #endif /* __KERNEL__ */ 39 #endif /* __ASM_PCI_H */ 40