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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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a9cb97fe71
CONFIG_ACPI depends CONFIG_PCI on x86 and ia64, in ARM64 server world we will have PCIe in most cases, but some of them may not, make CONFIG_ACPI depend CONFIG_PCI on ARM64 will satisfy both. With that case, we need some arch dependent PCI functions to access the config space before the PCI root bridge is created, and pci_acpi_scan_root() to create the PCI root bus. So introduce some stub function here to make ACPI core compile and revisit them later when implemented on ARM64. CC: Liviu Dudau <Liviu.Dudau@arm.com> CC: Catalin Marinas <catalin.marinas@arm.com> CC: Will Deacon <will.deacon@arm.com> Tested-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com> Tested-by: Yijing Wang <wangyijing@huawei.com> Tested-by: Mark Langsdorf <mlangsdo@redhat.com> Tested-by: Jon Masters <jcm@redhat.com> Tested-by: Timur Tabi <timur@codeaurora.org> Tested-by: Robert Richter <rrichter@cavium.com> Acked-by: Robert Richter <rrichter@cavium.com> Reviewed-by: Grant Likely <grant.likely@linaro.org> Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org> Signed-off-by: Will Deacon <will.deacon@arm.com>
44 lines
873 B
C
44 lines
873 B
C
#ifndef __ASM_PCI_H
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#define __ASM_PCI_H
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#ifdef __KERNEL__
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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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#include <asm-generic/pci-bridge.h>
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#include <asm-generic/pci-dma-compat.h>
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#define PCIBIOS_MIN_IO 0x1000
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#define PCIBIOS_MIN_MEM 0
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/*
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* Set to 1 if the kernel should re-assign all PCI bus numbers
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*/
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#define pcibios_assign_all_busses() \
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(pci_has_flag(PCI_REASSIGN_ALL_BUS))
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/*
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* PCI address space differs from physical memory address space
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*/
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#define PCI_DMA_BUS_IS_PHYS (0)
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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 arm64 */
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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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return 1;
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}
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#endif /* CONFIG_PCI */
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#endif /* __KERNEL__ */
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#endif /* __ASM_PCI_H */
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