1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * 4 * Based on powerpc version 5 */ 6 7 #ifndef __ASM_MICROBLAZE_PCI_H 8 #define __ASM_MICROBLAZE_PCI_H 9 #ifdef __KERNEL__ 10 11 #include <linux/types.h> 12 #include <linux/slab.h> 13 #include <linux/string.h> 14 #include <linux/dma-mapping.h> 15 #include <linux/pci.h> 16 #include <linux/scatterlist.h> 17 18 #include <asm/io.h> 19 #include <asm/pci-bridge.h> 20 21 #define PCIBIOS_MIN_IO 0x1000 22 #define PCIBIOS_MIN_MEM 0x10000000 23 24 /* Values for the `which' argument to sys_pciconfig_iobase syscall. */ 25 #define IOBASE_BRIDGE_NUMBER 0 26 #define IOBASE_MEMORY 1 27 #define IOBASE_IO 2 28 #define IOBASE_ISA_IO 3 29 #define IOBASE_ISA_MEM 4 30 31 #define pcibios_scan_all_fns(a, b) 0 32 33 /* 34 * Set this to 1 if you want the kernel to re-assign all PCI 35 * bus numbers (don't do that on ppc64 yet !) 36 */ 37 #define pcibios_assign_all_busses() 0 38 39 extern int pci_domain_nr(struct pci_bus *bus); 40 41 /* Decide whether to display the domain number in /proc */ 42 extern int pci_proc_domain(struct pci_bus *bus); 43 44 struct vm_area_struct; 45 46 /* Tell PCI code what kind of PCI resource mappings we support */ 47 #define HAVE_PCI_MMAP 1 48 #define ARCH_GENERIC_PCI_MMAP_RESOURCE 1 49 #define arch_can_pci_mmap_io() 1 50 51 extern int pci_legacy_read(struct pci_bus *bus, loff_t port, u32 *val, 52 size_t count); 53 extern int pci_legacy_write(struct pci_bus *bus, loff_t port, u32 val, 54 size_t count); 55 extern int pci_mmap_legacy_page_range(struct pci_bus *bus, 56 struct vm_area_struct *vma, 57 enum pci_mmap_state mmap_state); 58 59 #define HAVE_PCI_LEGACY 1 60 61 extern void pcibios_resource_survey(void); 62 63 struct file; 64 extern pgprot_t pci_phys_mem_access_prot(struct file *file, 65 unsigned long pfn, 66 unsigned long size, 67 pgprot_t prot); 68 69 /* This part of code was originally in xilinx-pci.h */ 70 #ifdef CONFIG_PCI_XILINX 71 extern void __init xilinx_pci_init(void); 72 #else 73 static inline void __init xilinx_pci_init(void) { return; } 74 #endif 75 76 #endif /* __KERNEL__ */ 77 #endif /* __ASM_MICROBLAZE_PCI_H */ 78