tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright (C) 2016 SiFive
4 */
5
6#ifndef _ASM_RISCV_PCI_H
7#define _ASM_RISCV_PCI_H
8
9#include <linux/types.h>
10#include <linux/slab.h>
11#include <linux/dma-mapping.h>
12
13#include <asm/io.h>
14
15#define PCIBIOS_MIN_IO 0
16#define PCIBIOS_MIN_MEM 0
17
18/* RISC-V shim does not initialize PCI bus */
19#define pcibios_assign_all_busses() 1
20
21extern int isa_dma_bridge_buggy;
22
23#ifdef CONFIG_PCI
24static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
25{
26 /* no legacy IRQ on risc-v */
27 return -ENODEV;
28}
29
30static inline int pci_proc_domain(struct pci_bus *bus)
31{
32 /* always show the domain in /proc */
33 return 1;
34}
35#endif /* CONFIG_PCI */
36
37#endif /* _ASM_RISCV_PCI_H */