| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 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 | |
| 21 | extern int isa_dma_bridge_buggy; |
| 22 | |
| 23 | #ifdef CONFIG_PCI |
| 24 | static 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 | |
| 30 | static 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_PCI_H */ |