2 * This program is free software; you can redistribute it and/or
3 * modify it under the terms of the GNU General Public License
4 * as published by the Free Software Foundation; either version
5 * 2 of the License, or (at your option) any later version.
7 * Based on powerpc version
10 #ifndef __ASM_MICROBLAZE_PCI_H
11 #define __ASM_MICROBLAZE_PCI_H
14 #include <linux/types.h>
15 #include <linux/slab.h>
16 #include <linux/string.h>
17 #include <linux/dma-mapping.h>
18 #include <linux/pci.h>
20 #include <asm/scatterlist.h>
23 #include <asm/pci-bridge.h>
25 #define PCIBIOS_MIN_IO 0x1000
26 #define PCIBIOS_MIN_MEM 0x10000000
30 /* Values for the `which' argument to sys_pciconfig_iobase syscall. */
31 #define IOBASE_BRIDGE_NUMBER 0
32 #define IOBASE_MEMORY 1
34 #define IOBASE_ISA_IO 3
35 #define IOBASE_ISA_MEM 4
37 #define pcibios_scan_all_fns(a, b) 0
40 * Set this to 1 if you want the kernel to re-assign all PCI
41 * bus numbers (don't do that on ppc64 yet !)
43 #define pcibios_assign_all_busses() \
44 (pci_has_flag(PCI_REASSIGN_ALL_BUS))
46 static inline void pcibios_set_master(struct pci_dev *dev)
48 /* No special bus mastering setup handling */
51 static inline void pcibios_penalize_isa_irq(int irq, int active)
53 /* We don't do dynamic PCI IRQ allocation */
57 extern void set_pci_dma_ops(struct dma_map_ops *dma_ops);
58 extern struct dma_map_ops *get_pci_dma_ops(void);
59 #else /* CONFIG_PCI */
60 #define set_pci_dma_ops(d)
61 #define get_pci_dma_ops() NULL
65 static inline void pci_dma_burst_advice(struct pci_dev *pdev,
66 enum pci_dma_burst_strategy *strat,
67 unsigned long *strategy_parameter)
69 *strat = PCI_DMA_BURST_INFINITY;
70 *strategy_parameter = ~0UL;
74 extern int pci_domain_nr(struct pci_bus *bus);
76 /* Decide whether to display the domain number in /proc */
77 extern int pci_proc_domain(struct pci_bus *bus);
79 struct vm_area_struct;
80 /* Map a range of PCI memory or I/O space for a device into user space */
81 int pci_mmap_page_range(struct pci_dev *pdev, struct vm_area_struct *vma,
82 enum pci_mmap_state mmap_state, int write_combine);
84 /* Tell drivers/pci/proc.c that we have pci_mmap_page_range() */
85 #define HAVE_PCI_MMAP 1
87 extern int pci_legacy_read(struct pci_bus *bus, loff_t port, u32 *val,
89 extern int pci_legacy_write(struct pci_bus *bus, loff_t port, u32 val,
91 extern int pci_mmap_legacy_page_range(struct pci_bus *bus,
92 struct vm_area_struct *vma,
93 enum pci_mmap_state mmap_state);
95 #define HAVE_PCI_LEGACY 1
97 /* pci_unmap_{page,single} is a nop so... */
98 #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)
99 #define DECLARE_PCI_UNMAP_LEN(LEN_NAME)
100 #define pci_unmap_addr(PTR, ADDR_NAME) (0)
101 #define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) do { } while (0)
102 #define pci_unmap_len(PTR, LEN_NAME) (0)
103 #define pci_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0)
105 /* The PCI address space does equal the physical memory
106 * address space (no IOMMU). The IDE and SCSI device layers use
107 * this boolean for bounce buffer decisions.
109 #define PCI_DMA_BUS_IS_PHYS (1)
111 extern void pcibios_resource_to_bus(struct pci_dev *dev,
112 struct pci_bus_region *region,
113 struct resource *res);
115 extern void pcibios_bus_to_resource(struct pci_dev *dev,
116 struct resource *res,
117 struct pci_bus_region *region);
119 static inline struct resource *pcibios_select_root(struct pci_dev *pdev,
120 struct resource *res)
122 struct resource *root = NULL;
124 if (res->flags & IORESOURCE_IO)
125 root = &ioport_resource;
126 if (res->flags & IORESOURCE_MEM)
127 root = &iomem_resource;
132 extern void pcibios_claim_one_bus(struct pci_bus *b);
134 extern void pcibios_finish_adding_to_bus(struct pci_bus *bus);
136 extern void pcibios_resource_survey(void);
138 extern struct pci_controller *init_phb_dynamic(struct device_node *dn);
139 extern int remove_phb_dynamic(struct pci_controller *phb);
141 extern struct pci_dev *of_create_pci_dev(struct device_node *node,
142 struct pci_bus *bus, int devfn);
144 extern void of_scan_pci_bridge(struct device_node *node,
145 struct pci_dev *dev);
147 extern void of_scan_bus(struct device_node *node, struct pci_bus *bus);
148 extern void of_rescan_bus(struct device_node *node, struct pci_bus *bus);
150 extern int pci_read_irq_line(struct pci_dev *dev);
152 extern int pci_bus_find_capability(struct pci_bus *bus,
153 unsigned int devfn, int cap);
156 extern pgprot_t pci_phys_mem_access_prot(struct file *file,
161 #define HAVE_ARCH_PCI_RESOURCE_TO_USER
162 extern void pci_resource_to_user(const struct pci_dev *dev, int bar,
163 const struct resource *rsrc,
164 resource_size_t *start, resource_size_t *end);
166 extern void pcibios_setup_bus_devices(struct pci_bus *bus);
167 extern void pcibios_setup_bus_self(struct pci_bus *bus);
169 /* This part of code was originaly in xilinx-pci.h */
170 #ifdef CONFIG_PCI_XILINX
171 extern void __init xilinx_pci_init(void);
173 static inline void __init xilinx_pci_init(void) { return; }
176 #endif /* __KERNEL__ */
177 #endif /* __ASM_MICROBLAZE_PCI_H */