mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-17 17:36:50 +07:00
d43421565b
Enumeration Simplify config space size computation (Bjorn Helgaas) Avoid iterating through ROM outside the resource window (Edward O'Callaghan) Support PCIe devices with short cfg_size (Jason S. McMullan) Add Netronome vendor and device IDs (Jason S. McMullan) Limit config space size for Netronome NFP6000 family (Jason S. McMullan) Add Netronome NFP4000 PF device ID (Simon Horman) Limit config space size for Netronome NFP4000 (Simon Horman) Print warnings for all invalid expansion ROM headers (Vladis Dronov) Resource management Fix minimum allocation address overwrite (Christoph Biedl) PCI device hotplug acpiphp_ibm: Fix null dereferences on null ibm_slot (Colin Ian King) pciehp: Always protect pciehp_disable_slot() with hotplug mutex (Guenter Roeck) shpchp: Constify hpc_ops structure (Julia Lawall) ibmphp: Remove unneeded NULL test (Julia Lawall) Power management Make ASPM sysfs link_state_store() consistent with link_state_show() (Andy Lutomirski) Virtualization Add function 1 DMA alias quirk for Lite-On/Plextor M6e/Marvell 88SS9183 (Tim Sander) MSI Remove empty pci_msi_init_pci_dev() (Bjorn Helgaas) Mark PCIe/PCI (MSI) IRQ cascade handlers as IRQF_NO_THREAD (Grygorii Strashko) Initialize MSI capability for all architectures (Guilherme G. Piccoli) Relax msi_domain_alloc() to support parentless MSI irqdomains (Liu Jiang) ARM Versatile host bridge driver Remove unused pci_sys_data structures (Lorenzo Pieralisi) Broadcom iProc host bridge driver Hide CONFIG_PCIE_IPROC (Arnd Bergmann) Do not use 0x in front of %pap (Dmitry V. Krivenok) Update iProc PCIe device tree binding (Ray Jui) Add PAXC interface support (Ray Jui) Add iProc PCIe MSI device tree binding (Ray Jui) Add iProc PCIe MSI support (Ray Jui) Freescale i.MX6 host bridge driver Use gpio_set_value_cansleep() (Fabio Estevam) Add support for active-low reset GPIO (Petr Štetiar) HiSilicon host bridge driver Add support for HiSilicon Hip06 PCIe host controllers (Gabriele Paoloni) Intel VMD host bridge driver Export irq_domain_set_info() for module use (Keith Busch) x86/PCI: Allow DMA ops specific to a PCI domain (Keith Busch) Use 32 bit PCI domain numbers (Keith Busch) Add driver for Intel Volume Management Device (VMD) (Keith Busch) Qualcomm host bridge driver Document PCIe devicetree bindings (Stanimir Varbanov) Add Qualcomm PCIe controller driver (Stanimir Varbanov) dts: apq8064: add PCIe devicetree node (Stanimir Varbanov) dts: ifc6410: enable PCIe DT node for this board (Stanimir Varbanov) Renesas R-Car host bridge driver Add support for R-Car H3 to pcie-rcar (Harunobu Kurokawa) Allow DT to override default window settings (Phil Edworthy) Convert to DT resource parsing API (Phil Edworthy) Revert "PCI: rcar: Build pcie-rcar.c only on ARM" (Phil Edworthy) Remove unused pci_sys_data struct from pcie-rcar (Phil Edworthy) Add runtime PM support to pcie-rcar (Phil Edworthy) Add Gen2 PHY setup to pcie-rcar (Phil Edworthy) Add gen2 fallback compatibility string for pci-rcar-gen2 (Simon Horman) Add gen2 fallback compatibility string for pcie-rcar (Simon Horman) Synopsys DesignWare host bridge driver Simplify control flow (Bjorn Helgaas) Make config accessor override checking symmetric (Bjorn Helgaas) Ensure ATU is enabled before IO/conf space accesses (Stanimir Varbanov) Miscellaneous Add of_pci_get_host_bridge_resources() stub (Arnd Bergmann) Check for PCI_HEADER_TYPE_BRIDGE equality, not bitmask (Bjorn Helgaas) Fix all whitespace issues (Bogicevic Sasa) x86/PCI: Simplify pci_bios_{read,write} (Geliang Tang) Use to_pci_dev() instead of open-coding it (Geliang Tang) Use kobj_to_dev() instead of open-coding it (Geliang Tang) Use list_for_each_entry() to simplify code (Geliang Tang) Fix typos in <linux/msi.h> (Thomas Petazzoni) x86/PCI: Clarify AMD Fam10h config access restrictions comment (Tomasz Nowicki) -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJWoQIuAAoJEFmIoMA60/r8ckYP/0ZrkANeN1SB5cQVi2k7aceq kQb1Hk6ifxohJvgpJ/iwmVCHoApyeBfUBfrC+fUpIC2f7ncPsE5HNyjqpAWzFzj2 sYWwY029yjBQ9g4mPhkvjBXfha+lNtLthWc+Xxcat5pdcyG63Dg4SfJKWm2ZYnbN 0GJzyRZXIwAMnNf0KIr61Aqru0nXeHvi5wblyJ08UZ7AcNzCtB0wKLmE3S6SeZVF f2fry35zcGu+TFvQ1hAYemfl3XyDBJ87nPiKzJAwYSaKcWPFWt+72PBDPO6X9squ 6prm4nmAgeG2Oo4Zu0fbkDlB2bEsWUc14/xT0i5Wfs35vcwzF+S1zirJAtVqoNir NgC7fSbEHbsS7FZOz0rBOBIvIkbb6NdfLFuZqUFv0X1M5bRFywjo8lZRfAYoGJzK Mmus0uKbklx5m6RT5adf9+Plev1YJT6XZW9XrDpGnxrwRyPjHmyvuTWsYkumxY7Q CE5Wr3p7q2I2+MtrQVv2D9Nzsb+4zQ6BgHrd2vwR/IxTsfdXLU7+B691wkUDX8No UKFxBd0FiVCn+srG96u7lWQvdoUqoNCogTZSVzGR5gFBv3zAN9gi8HS7NbV558Mg Io3Xw+6dcbG33uvWdU6jHEDLMQsohZcp05Q5esCgRQNV4cGJbPxBDtOZEO/ezvW4 FAI7lfgYTFiQK3NzE3Ng =z9mQ -----END PGP SIGNATURE----- Merge tag 'pci-v4.5-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI updates from Bjorn Helgaas: "PCI changes for the v4.5 merge window: Enumeration: - Simplify config space size computation (Bjorn Helgaas) - Avoid iterating through ROM outside the resource window (Edward O'Callaghan) - Support PCIe devices with short cfg_size (Jason S. McMullan) - Add Netronome vendor and device IDs (Jason S. McMullan) - Limit config space size for Netronome NFP6000 family (Jason S. McMullan) - Add Netronome NFP4000 PF device ID (Simon Horman) - Limit config space size for Netronome NFP4000 (Simon Horman) - Print warnings for all invalid expansion ROM headers (Vladis Dronov) Resource management: - Fix minimum allocation address overwrite (Christoph Biedl) PCI device hotplug: - acpiphp_ibm: Fix null dereferences on null ibm_slot (Colin Ian King) - pciehp: Always protect pciehp_disable_slot() with hotplug mutex (Guenter Roeck) - shpchp: Constify hpc_ops structure (Julia Lawall) - ibmphp: Remove unneeded NULL test (Julia Lawall) Power management: - Make ASPM sysfs link_state_store() consistent with link_state_show() (Andy Lutomirski) Virtualization - Add function 1 DMA alias quirk for Lite-On/Plextor M6e/Marvell 88SS9183 (Tim Sander) MSI: - Remove empty pci_msi_init_pci_dev() (Bjorn Helgaas) - Mark PCIe/PCI (MSI) IRQ cascade handlers as IRQF_NO_THREAD (Grygorii Strashko) - Initialize MSI capability for all architectures (Guilherme G. Piccoli) - Relax msi_domain_alloc() to support parentless MSI irqdomains (Liu Jiang) ARM Versatile host bridge driver: - Remove unused pci_sys_data structures (Lorenzo Pieralisi) Broadcom iProc host bridge driver: - Hide CONFIG_PCIE_IPROC (Arnd Bergmann) - Do not use 0x in front of %pap (Dmitry V. Krivenok) - Update iProc PCIe device tree binding (Ray Jui) - Add PAXC interface support (Ray Jui) - Add iProc PCIe MSI device tree binding (Ray Jui) - Add iProc PCIe MSI support (Ray Jui) Freescale i.MX6 host bridge driver: - Use gpio_set_value_cansleep() (Fabio Estevam) - Add support for active-low reset GPIO (Petr Štetiar) HiSilicon host bridge driver: - Add support for HiSilicon Hip06 PCIe host controllers (Gabriele Paoloni) Intel VMD host bridge driver: - Export irq_domain_set_info() for module use (Keith Busch) - x86/PCI: Allow DMA ops specific to a PCI domain (Keith Busch) - Use 32 bit PCI domain numbers (Keith Busch) - Add driver for Intel Volume Management Device (VMD) (Keith Busch) Qualcomm host bridge driver: - Document PCIe devicetree bindings (Stanimir Varbanov) - Add Qualcomm PCIe controller driver (Stanimir Varbanov) - dts: apq8064: add PCIe devicetree node (Stanimir Varbanov) - dts: ifc6410: enable PCIe DT node for this board (Stanimir Varbanov) Renesas R-Car host bridge driver: - Add support for R-Car H3 to pcie-rcar (Harunobu Kurokawa) - Allow DT to override default window settings (Phil Edworthy) - Convert to DT resource parsing API (Phil Edworthy) - Revert "PCI: rcar: Build pcie-rcar.c only on ARM" (Phil Edworthy) - Remove unused pci_sys_data struct from pcie-rcar (Phil Edworthy) - Add runtime PM support to pcie-rcar (Phil Edworthy) - Add Gen2 PHY setup to pcie-rcar (Phil Edworthy) - Add gen2 fallback compatibility string for pci-rcar-gen2 (Simon Horman) - Add gen2 fallback compatibility string for pcie-rcar (Simon Horman) Synopsys DesignWare host bridge driver: - Simplify control flow (Bjorn Helgaas) - Make config accessor override checking symmetric (Bjorn Helgaas) - Ensure ATU is enabled before IO/conf space accesses (Stanimir Varbanov) Miscellaneous: - Add of_pci_get_host_bridge_resources() stub (Arnd Bergmann) - Check for PCI_HEADER_TYPE_BRIDGE equality, not bitmask (Bjorn Helgaas) - Fix all whitespace issues (Bogicevic Sasa) - x86/PCI: Simplify pci_bios_{read,write} (Geliang Tang) - Use to_pci_dev() instead of open-coding it (Geliang Tang) - Use kobj_to_dev() instead of open-coding it (Geliang Tang) - Use list_for_each_entry() to simplify code (Geliang Tang) - Fix typos in <linux/msi.h> (Thomas Petazzoni) - x86/PCI: Clarify AMD Fam10h config access restrictions comment (Tomasz Nowicki)" * tag 'pci-v4.5-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (58 commits) PCI: Add function 1 DMA alias quirk for Lite-On/Plextor M6e/Marvell 88SS9183 PCI: Limit config space size for Netronome NFP4000 PCI: Add Netronome NFP4000 PF device ID x86/PCI: Add driver for Intel Volume Management Device (VMD) PCI/AER: Use 32 bit PCI domain numbers x86/PCI: Allow DMA ops specific to a PCI domain irqdomain: Export irq_domain_set_info() for module use PCI: host: Add of_pci_get_host_bridge_resources() stub genirq/MSI: Relax msi_domain_alloc() to support parentless MSI irqdomains PCI: rcar: Add Gen2 PHY setup to pcie-rcar PCI: rcar: Add runtime PM support to pcie-rcar PCI: designware: Make config accessor override checking symmetric PCI: ibmphp: Remove unneeded NULL test ARM: dts: ifc6410: enable PCIe DT node for this board ARM: dts: apq8064: add PCIe devicetree node PCI: hotplug: Use list_for_each_entry() to simplify code PCI: rcar: Remove unused pci_sys_data struct from pcie-rcar PCI: hisi: Add support for HiSilicon Hip06 PCIe host controllers PCI: Avoid iterating through memory outside the resource window PCI: acpiphp_ibm: Fix null dereferences on null ibm_slot ...
327 lines
11 KiB
C
327 lines
11 KiB
C
#ifndef LINUX_MSI_H
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#define LINUX_MSI_H
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#include <linux/kobject.h>
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#include <linux/list.h>
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struct msi_msg {
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u32 address_lo; /* low 32 bits of msi message address */
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u32 address_hi; /* high 32 bits of msi message address */
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u32 data; /* 16 bits of msi message data */
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};
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extern int pci_msi_ignore_mask;
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/* Helper functions */
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struct irq_data;
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struct msi_desc;
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struct pci_dev;
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struct platform_msi_priv_data;
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void __get_cached_msi_msg(struct msi_desc *entry, struct msi_msg *msg);
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void get_cached_msi_msg(unsigned int irq, struct msi_msg *msg);
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typedef void (*irq_write_msi_msg_t)(struct msi_desc *desc,
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struct msi_msg *msg);
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/**
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* platform_msi_desc - Platform device specific msi descriptor data
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* @msi_priv_data: Pointer to platform private data
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* @msi_index: The index of the MSI descriptor for multi MSI
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*/
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struct platform_msi_desc {
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struct platform_msi_priv_data *msi_priv_data;
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u16 msi_index;
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};
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/**
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* struct msi_desc - Descriptor structure for MSI based interrupts
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* @list: List head for management
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* @irq: The base interrupt number
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* @nvec_used: The number of vectors used
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* @dev: Pointer to the device which uses this descriptor
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* @msg: The last set MSI message cached for reuse
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*
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* @masked: [PCI MSI/X] Mask bits
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* @is_msix: [PCI MSI/X] True if MSI-X
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* @multiple: [PCI MSI/X] log2 num of messages allocated
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* @multi_cap: [PCI MSI/X] log2 num of messages supported
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* @maskbit: [PCI MSI/X] Mask-Pending bit supported?
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* @is_64: [PCI MSI/X] Address size: 0=32bit 1=64bit
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* @entry_nr: [PCI MSI/X] Entry which is described by this descriptor
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* @default_irq:[PCI MSI/X] The default pre-assigned non-MSI irq
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* @mask_pos: [PCI MSI] Mask register position
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* @mask_base: [PCI MSI-X] Mask register base address
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* @platform: [platform] Platform device specific msi descriptor data
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*/
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struct msi_desc {
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/* Shared device/bus type independent data */
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struct list_head list;
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unsigned int irq;
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unsigned int nvec_used;
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struct device *dev;
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struct msi_msg msg;
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union {
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/* PCI MSI/X specific data */
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struct {
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u32 masked;
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struct {
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__u8 is_msix : 1;
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__u8 multiple : 3;
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__u8 multi_cap : 3;
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__u8 maskbit : 1;
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__u8 is_64 : 1;
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__u16 entry_nr;
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unsigned default_irq;
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} msi_attrib;
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union {
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u8 mask_pos;
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void __iomem *mask_base;
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};
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};
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/*
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* Non PCI variants add their data structure here. New
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* entries need to use a named structure. We want
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* proper name spaces for this. The PCI part is
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* anonymous for now as it would require an immediate
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* tree wide cleanup.
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*/
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struct platform_msi_desc platform;
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};
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};
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/* Helpers to hide struct msi_desc implementation details */
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#define msi_desc_to_dev(desc) ((desc)->dev)
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#define dev_to_msi_list(dev) (&(dev)->msi_list)
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#define first_msi_entry(dev) \
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list_first_entry(dev_to_msi_list((dev)), struct msi_desc, list)
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#define for_each_msi_entry(desc, dev) \
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list_for_each_entry((desc), dev_to_msi_list((dev)), list)
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#ifdef CONFIG_PCI_MSI
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#define first_pci_msi_entry(pdev) first_msi_entry(&(pdev)->dev)
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#define for_each_pci_msi_entry(desc, pdev) \
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for_each_msi_entry((desc), &(pdev)->dev)
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struct pci_dev *msi_desc_to_pci_dev(struct msi_desc *desc);
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void *msi_desc_to_pci_sysdata(struct msi_desc *desc);
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#else /* CONFIG_PCI_MSI */
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static inline void *msi_desc_to_pci_sysdata(struct msi_desc *desc)
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{
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return NULL;
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}
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#endif /* CONFIG_PCI_MSI */
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struct msi_desc *alloc_msi_entry(struct device *dev);
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void free_msi_entry(struct msi_desc *entry);
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void __pci_read_msi_msg(struct msi_desc *entry, struct msi_msg *msg);
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void __pci_write_msi_msg(struct msi_desc *entry, struct msi_msg *msg);
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void pci_write_msi_msg(unsigned int irq, struct msi_msg *msg);
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u32 __pci_msix_desc_mask_irq(struct msi_desc *desc, u32 flag);
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u32 __pci_msi_desc_mask_irq(struct msi_desc *desc, u32 mask, u32 flag);
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void pci_msi_mask_irq(struct irq_data *data);
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void pci_msi_unmask_irq(struct irq_data *data);
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/* Conversion helpers. Should be removed after merging */
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static inline void __write_msi_msg(struct msi_desc *entry, struct msi_msg *msg)
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{
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__pci_write_msi_msg(entry, msg);
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}
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static inline void write_msi_msg(int irq, struct msi_msg *msg)
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{
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pci_write_msi_msg(irq, msg);
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}
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static inline void mask_msi_irq(struct irq_data *data)
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{
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pci_msi_mask_irq(data);
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}
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static inline void unmask_msi_irq(struct irq_data *data)
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{
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pci_msi_unmask_irq(data);
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}
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/*
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* The arch hooks to setup up msi irqs. Those functions are
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* implemented as weak symbols so that they /can/ be overriden by
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* architecture specific code if needed.
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*/
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int arch_setup_msi_irq(struct pci_dev *dev, struct msi_desc *desc);
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void arch_teardown_msi_irq(unsigned int irq);
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int arch_setup_msi_irqs(struct pci_dev *dev, int nvec, int type);
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void arch_teardown_msi_irqs(struct pci_dev *dev);
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void arch_restore_msi_irqs(struct pci_dev *dev);
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void default_teardown_msi_irqs(struct pci_dev *dev);
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void default_restore_msi_irqs(struct pci_dev *dev);
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struct msi_controller {
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struct module *owner;
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struct device *dev;
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struct device_node *of_node;
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struct list_head list;
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int (*setup_irq)(struct msi_controller *chip, struct pci_dev *dev,
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struct msi_desc *desc);
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int (*setup_irqs)(struct msi_controller *chip, struct pci_dev *dev,
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int nvec, int type);
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void (*teardown_irq)(struct msi_controller *chip, unsigned int irq);
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};
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#ifdef CONFIG_GENERIC_MSI_IRQ_DOMAIN
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#include <linux/irqhandler.h>
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#include <asm/msi.h>
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struct irq_domain;
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struct irq_domain_ops;
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struct irq_chip;
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struct device_node;
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struct fwnode_handle;
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struct msi_domain_info;
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/**
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* struct msi_domain_ops - MSI interrupt domain callbacks
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* @get_hwirq: Retrieve the resulting hw irq number
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* @msi_init: Domain specific init function for MSI interrupts
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* @msi_free: Domain specific function to free a MSI interrupts
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* @msi_check: Callback for verification of the domain/info/dev data
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* @msi_prepare: Prepare the allocation of the interrupts in the domain
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* @msi_finish: Optional callback to finalize the allocation
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* @set_desc: Set the msi descriptor for an interrupt
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* @handle_error: Optional error handler if the allocation fails
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*
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* @get_hwirq, @msi_init and @msi_free are callbacks used by
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* msi_create_irq_domain() and related interfaces
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*
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* @msi_check, @msi_prepare, @msi_finish, @set_desc and @handle_error
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* are callbacks used by msi_domain_alloc_irqs() and related
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* interfaces which are based on msi_desc.
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*/
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struct msi_domain_ops {
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irq_hw_number_t (*get_hwirq)(struct msi_domain_info *info,
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msi_alloc_info_t *arg);
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int (*msi_init)(struct irq_domain *domain,
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struct msi_domain_info *info,
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unsigned int virq, irq_hw_number_t hwirq,
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msi_alloc_info_t *arg);
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void (*msi_free)(struct irq_domain *domain,
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struct msi_domain_info *info,
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unsigned int virq);
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int (*msi_check)(struct irq_domain *domain,
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struct msi_domain_info *info,
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struct device *dev);
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int (*msi_prepare)(struct irq_domain *domain,
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struct device *dev, int nvec,
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msi_alloc_info_t *arg);
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void (*msi_finish)(msi_alloc_info_t *arg, int retval);
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void (*set_desc)(msi_alloc_info_t *arg,
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struct msi_desc *desc);
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int (*handle_error)(struct irq_domain *domain,
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struct msi_desc *desc, int error);
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};
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/**
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* struct msi_domain_info - MSI interrupt domain data
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* @flags: Flags to decribe features and capabilities
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* @ops: The callback data structure
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* @chip: Optional: associated interrupt chip
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* @chip_data: Optional: associated interrupt chip data
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* @handler: Optional: associated interrupt flow handler
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* @handler_data: Optional: associated interrupt flow handler data
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* @handler_name: Optional: associated interrupt flow handler name
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* @data: Optional: domain specific data
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*/
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struct msi_domain_info {
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u32 flags;
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struct msi_domain_ops *ops;
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struct irq_chip *chip;
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void *chip_data;
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irq_flow_handler_t handler;
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void *handler_data;
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const char *handler_name;
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void *data;
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};
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/* Flags for msi_domain_info */
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enum {
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/*
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* Init non implemented ops callbacks with default MSI domain
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* callbacks.
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*/
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MSI_FLAG_USE_DEF_DOM_OPS = (1 << 0),
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/*
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* Init non implemented chip callbacks with default MSI chip
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* callbacks.
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*/
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MSI_FLAG_USE_DEF_CHIP_OPS = (1 << 1),
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/* Build identity map between hwirq and irq */
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MSI_FLAG_IDENTITY_MAP = (1 << 2),
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/* Support multiple PCI MSI interrupts */
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MSI_FLAG_MULTI_PCI_MSI = (1 << 3),
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/* Support PCI MSIX interrupts */
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MSI_FLAG_PCI_MSIX = (1 << 4),
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};
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int msi_domain_set_affinity(struct irq_data *data, const struct cpumask *mask,
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bool force);
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struct irq_domain *msi_create_irq_domain(struct fwnode_handle *fwnode,
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struct msi_domain_info *info,
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struct irq_domain *parent);
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int msi_domain_alloc_irqs(struct irq_domain *domain, struct device *dev,
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int nvec);
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void msi_domain_free_irqs(struct irq_domain *domain, struct device *dev);
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struct msi_domain_info *msi_get_domain_info(struct irq_domain *domain);
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struct irq_domain *platform_msi_create_irq_domain(struct fwnode_handle *fwnode,
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struct msi_domain_info *info,
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struct irq_domain *parent);
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int platform_msi_domain_alloc_irqs(struct device *dev, unsigned int nvec,
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irq_write_msi_msg_t write_msi_msg);
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void platform_msi_domain_free_irqs(struct device *dev);
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/* When an MSI domain is used as an intermediate domain */
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int msi_domain_prepare_irqs(struct irq_domain *domain, struct device *dev,
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int nvec, msi_alloc_info_t *args);
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int msi_domain_populate_irqs(struct irq_domain *domain, struct device *dev,
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int virq, int nvec, msi_alloc_info_t *args);
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struct irq_domain *
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platform_msi_create_device_domain(struct device *dev,
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unsigned int nvec,
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irq_write_msi_msg_t write_msi_msg,
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const struct irq_domain_ops *ops,
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void *host_data);
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int platform_msi_domain_alloc(struct irq_domain *domain, unsigned int virq,
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unsigned int nr_irqs);
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void platform_msi_domain_free(struct irq_domain *domain, unsigned int virq,
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unsigned int nvec);
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void *platform_msi_get_host_data(struct irq_domain *domain);
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#endif /* CONFIG_GENERIC_MSI_IRQ_DOMAIN */
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#ifdef CONFIG_PCI_MSI_IRQ_DOMAIN
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void pci_msi_domain_write_msg(struct irq_data *irq_data, struct msi_msg *msg);
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struct irq_domain *pci_msi_create_irq_domain(struct fwnode_handle *fwnode,
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struct msi_domain_info *info,
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struct irq_domain *parent);
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int pci_msi_domain_alloc_irqs(struct irq_domain *domain, struct pci_dev *dev,
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int nvec, int type);
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void pci_msi_domain_free_irqs(struct irq_domain *domain, struct pci_dev *dev);
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struct irq_domain *pci_msi_create_default_irq_domain(struct fwnode_handle *fwnode,
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struct msi_domain_info *info, struct irq_domain *parent);
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irq_hw_number_t pci_msi_domain_calc_hwirq(struct pci_dev *dev,
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struct msi_desc *desc);
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int pci_msi_domain_check_cap(struct irq_domain *domain,
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struct msi_domain_info *info, struct device *dev);
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u32 pci_msi_domain_get_msi_rid(struct irq_domain *domain, struct pci_dev *pdev);
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struct irq_domain *pci_msi_get_device_domain(struct pci_dev *pdev);
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#else
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static inline struct irq_domain *pci_msi_get_device_domain(struct pci_dev *pdev)
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{
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return NULL;
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}
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#endif /* CONFIG_PCI_MSI_IRQ_DOMAIN */
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#endif /* LINUX_MSI_H */
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