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53 lines
1.0 KiB
53 lines
1.0 KiB
/* SPDX-License-Identifier: GPL-2.0-only */ |
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/* |
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* Copyright (C) 2016 SiFive |
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*/ |
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#ifndef _ASM_RISCV_PCI_H |
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#define _ASM_RISCV_PCI_H |
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#include <linux/types.h> |
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#include <linux/slab.h> |
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#include <linux/dma-mapping.h> |
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#include <asm/io.h> |
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#define PCIBIOS_MIN_IO 0 |
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#define PCIBIOS_MIN_MEM 0 |
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/* RISC-V shim does not initialize PCI bus */ |
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#define pcibios_assign_all_busses() 1 |
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#define ARCH_GENERIC_PCI_MMAP_RESOURCE 1 |
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extern int isa_dma_bridge_buggy; |
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#ifdef CONFIG_PCI |
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static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel) |
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{ |
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/* no legacy IRQ on risc-v */ |
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return -ENODEV; |
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} |
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static inline int pci_proc_domain(struct pci_bus *bus) |
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{ |
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/* always show the domain in /proc */ |
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return 1; |
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} |
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#ifdef CONFIG_NUMA |
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static inline int pcibus_to_node(struct pci_bus *bus) |
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{ |
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return dev_to_node(&bus->dev); |
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} |
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#ifndef cpumask_of_pcibus |
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#define cpumask_of_pcibus(bus) (pcibus_to_node(bus) == -1 ? \ |
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cpu_all_mask : \ |
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cpumask_of_node(pcibus_to_node(bus))) |
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#endif |
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#endif /* CONFIG_NUMA */ |
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#endif /* CONFIG_PCI */ |
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#endif /* _ASM_RISCV_PCI_H */
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