tjh.dev
Linux kernel mirror (for testing)
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linux
1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef ___ASM_SPARC_PCI_H
3#define ___ASM_SPARC_PCI_H
4
5
6/* Can be used to override the logic in pci_scan_bus for skipping
7 * already-configured bus numbers - to be used for buggy BIOSes
8 * or architectures with incomplete PCI setup by the loader.
9 */
10#define pcibios_assign_all_busses() 0
11
12#define PCIBIOS_MIN_IO 0UL
13#define PCIBIOS_MIN_MEM 0UL
14
15#define PCI_IRQ_NONE 0xffffffff
16
17
18#ifdef CONFIG_SPARC64
19
20/* PCI IOMMU mapping bypass support. */
21
22/* PCI 64-bit addressing works for all slots on all controller
23 * types on sparc64. However, it requires that the device
24 * can drive enough of the 64 bits.
25 */
26#define PCI64_REQUIRED_MASK (~(u64)0)
27#define PCI64_ADDR_BASE 0xfffc000000000000UL
28
29/* Return the index of the PCI controller for device PDEV. */
30int pci_domain_nr(struct pci_bus *bus);
31static inline int pci_proc_domain(struct pci_bus *bus)
32{
33 return 1;
34}
35
36/* Platform support for /proc/bus/pci/X/Y mmap()s. */
37#define HAVE_PCI_MMAP
38#define arch_can_pci_mmap_io() 1
39#define HAVE_ARCH_PCI_GET_UNMAPPED_AREA
40#define get_pci_unmapped_area get_fb_unmapped_area
41
42#define HAVE_ARCH_PCI_RESOURCE_TO_USER
43#endif /* CONFIG_SPARC64 */
44
45#if defined(CONFIG_SPARC64) || defined(CONFIG_LEON_PCI)
46static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
47{
48 return PCI_IRQ_NONE;
49}
50#else
51#include <asm-generic/pci.h>
52#endif
53
54#endif /* ___ASM_SPARC_PCI_H */