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Sunil V L
789befdfa3
The functions defined in arm64 for ACPI support are required for RISC-V also. To avoid duplication, move these functions to common location. Signed-off-by: Sunil V L <[email protected]> Acked-by: Bjorn Helgaas <[email protected]> Acked-by: Will Deacon <[email protected]> Tested-by: Björn Töpel <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Rafael J. Wysocki <[email protected]>
43 lines
933 B
C
43 lines
933 B
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Code borrowed from powerpc/kernel/pci-common.c
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*
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* Copyright (C) 2003 Anton Blanchard <[email protected]>, IBM
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* Copyright (C) 2014 ARM Ltd.
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*/
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#include <linux/pci.h>
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/*
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* raw_pci_read/write - Platform-specific PCI config space access.
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*/
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int raw_pci_read(unsigned int domain, unsigned int bus,
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unsigned int devfn, int reg, int len, u32 *val)
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{
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struct pci_bus *b = pci_find_bus(domain, bus);
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if (!b)
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return PCIBIOS_DEVICE_NOT_FOUND;
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return b->ops->read(b, devfn, reg, len, val);
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}
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int raw_pci_write(unsigned int domain, unsigned int bus,
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unsigned int devfn, int reg, int len, u32 val)
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{
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struct pci_bus *b = pci_find_bus(domain, bus);
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if (!b)
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return PCIBIOS_DEVICE_NOT_FOUND;
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return b->ops->write(b, devfn, reg, len, val);
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}
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#ifdef CONFIG_NUMA
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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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EXPORT_SYMBOL(pcibus_to_node);
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#endif
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