| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | /* |
| 3 | * PCI Endpoint *Function* side MSI header file |
| 4 | * |
| 5 | * Copyright (C) 2024 NXP |
| 6 | * Author: Frank Li <Frank.Li@nxp.com> |
| 7 | */ |
| 8 | |
| 9 | #ifndef __PCI_EP_MSI__ |
| 10 | #define __PCI_EP_MSI__ |
| 11 | |
| 12 | struct pci_epf; |
| 13 | |
| 14 | #ifdef CONFIG_PCI_ENDPOINT_MSI_DOORBELL |
| 15 | int pci_epf_alloc_doorbell(struct pci_epf *epf, u16 nums); |
| 16 | void pci_epf_free_doorbell(struct pci_epf *epf); |
| 17 | #else |
| 18 | static inline int pci_epf_alloc_doorbell(struct pci_epf *epf, u16 nums) |
| 19 | { |
| 20 | return -ENODATA; |
| 21 | } |
| 22 | |
| 23 | static inline void pci_epf_free_doorbell(struct pci_epf *epf) |
| 24 | { |
| 25 | } |
| 26 | #endif /* CONFIG_GENERIC_MSI_IRQ */ |
| 27 | |
| 28 | #endif /* __PCI_EP_MSI__ */ |
| 29 | |