tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1#ifndef ASMARM_PCI_H
2#define ASMARM_PCI_H
3
4#ifdef __KERNEL__
5#include <linux/config.h>
6#include <asm-generic/pci-dma-compat.h>
7
8#include <asm/hardware.h> /* for PCIBIOS_MIN_* */
9
10#define pcibios_scan_all_fns(a, b) 0
11
12static inline void pcibios_set_master(struct pci_dev *dev)
13{
14 /* No special bus mastering setup handling */
15}
16
17static inline void pcibios_penalize_isa_irq(int irq, int active)
18{
19 /* We don't do dynamic PCI IRQ allocation */
20}
21
22/*
23 * The PCI address space does equal the physical memory address space.
24 * The networking and block device layers use this boolean for bounce
25 * buffer decisions.
26 */
27#define PCI_DMA_BUS_IS_PHYS (0)
28
29/*
30 * We don't support DAC DMA cycles.
31 */
32#define pci_dac_dma_supported(pci_dev, mask) (0)
33
34/*
35 * Whether pci_unmap_{single,page} is a nop depends upon the
36 * configuration.
37 */
38#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME) dma_addr_t ADDR_NAME;
39#define DECLARE_PCI_UNMAP_LEN(LEN_NAME) __u32 LEN_NAME;
40#define pci_unmap_addr(PTR, ADDR_NAME) ((PTR)->ADDR_NAME)
41#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) (((PTR)->ADDR_NAME) = (VAL))
42#define pci_unmap_len(PTR, LEN_NAME) ((PTR)->LEN_NAME)
43#define pci_unmap_len_set(PTR, LEN_NAME, VAL) (((PTR)->LEN_NAME) = (VAL))
44
45#ifdef CONFIG_PCI
46static inline void pci_dma_burst_advice(struct pci_dev *pdev,
47 enum pci_dma_burst_strategy *strat,
48 unsigned long *strategy_parameter)
49{
50 *strat = PCI_DMA_BURST_INFINITY;
51 *strategy_parameter = ~0UL;
52}
53#endif
54
55#define HAVE_PCI_MMAP
56extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
57 enum pci_mmap_state mmap_state, int write_combine);
58
59extern void
60pcibios_resource_to_bus(struct pci_dev *dev, struct pci_bus_region *region,
61 struct resource *res);
62
63extern void
64pcibios_bus_to_resource(struct pci_dev *dev, struct resource *res,
65 struct pci_bus_region *region);
66
67static inline struct resource *
68pcibios_select_root(struct pci_dev *pdev, struct resource *res)
69{
70 struct resource *root = NULL;
71
72 if (res->flags & IORESOURCE_IO)
73 root = &ioport_resource;
74 if (res->flags & IORESOURCE_MEM)
75 root = &iomem_resource;
76
77 return root;
78}
79
80static inline void pcibios_add_platform_entries(struct pci_dev *dev)
81{
82}
83
84#endif /* __KERNEL__ */
85
86#endif