xref: /openbmc/linux/arch/microblaze/include/asm/pci.h (revision 7df700af)
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 /*
32  * Set this to 1 if you want the kernel to re-assign all PCI
33  * bus numbers (don't do that on ppc64 yet !)
34  */
35 #define pcibios_assign_all_busses()	0
36 
37 extern int pci_domain_nr(struct pci_bus *bus);
38 
39 /* Decide whether to display the domain number in /proc */
40 extern int pci_proc_domain(struct pci_bus *bus);
41 
42 struct vm_area_struct;
43 
44 /* Tell PCI code what kind of PCI resource mappings we support */
45 #define HAVE_PCI_MMAP			1
46 #define ARCH_GENERIC_PCI_MMAP_RESOURCE	1
47 #define arch_can_pci_mmap_io()		1
48 
49 struct file;
50 
51 /* This part of code was originally in xilinx-pci.h */
52 #ifdef CONFIG_PCI_XILINX
53 extern void __init xilinx_pci_init(void);
54 #else
55 static inline void __init xilinx_pci_init(void) { return; }
56 #endif
57 
58 #endif	/* __KERNEL__ */
59 #endif /* __ASM_MICROBLAZE_PCI_H */
60