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1/* SPDX-License-Identifier: GPL-2.0-or-later */2/*3 * CXL Flash Device Driver4 *5 * Written by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>, IBM Corporation6 * Uma Krishnan <ukrishn@linux.vnet.ibm.com>, IBM Corporation7 *8 * Copyright (C) 2018 IBM Corporation9 */10 11#ifndef _CXLFLASH_BACKEND_H12#define _CXLFLASH_BACKEND_H13 14extern const struct cxlflash_backend_ops cxlflash_cxl_ops;15extern const struct cxlflash_backend_ops cxlflash_ocxl_ops;16 17struct cxlflash_backend_ops {18 struct module *module;19 void __iomem * (*psa_map)(void *ctx_cookie);20 void (*psa_unmap)(void __iomem *addr);21 int (*process_element)(void *ctx_cookie);22 int (*map_afu_irq)(void *ctx_cookie, int num, irq_handler_t handler,23 void *cookie, char *name);24 void (*unmap_afu_irq)(void *ctx_cookie, int num, void *cookie);25 u64 (*get_irq_objhndl)(void *ctx_cookie, int irq);26 int (*start_context)(void *ctx_cookie);27 int (*stop_context)(void *ctx_cookie);28 int (*afu_reset)(void *ctx_cookie);29 void (*set_master)(void *ctx_cookie);30 void * (*get_context)(struct pci_dev *dev, void *afu_cookie);31 void * (*dev_context_init)(struct pci_dev *dev, void *afu_cookie);32 int (*release_context)(void *ctx_cookie);33 void (*perst_reloads_same_image)(void *afu_cookie, bool image);34 ssize_t (*read_adapter_vpd)(struct pci_dev *dev, void *buf,35 size_t count);36 int (*allocate_afu_irqs)(void *ctx_cookie, int num);37 void (*free_afu_irqs)(void *ctx_cookie);38 void * (*create_afu)(struct pci_dev *dev);39 void (*destroy_afu)(void *afu_cookie);40 struct file * (*get_fd)(void *ctx_cookie, struct file_operations *fops,41 int *fd);42 void * (*fops_get_context)(struct file *file);43 int (*start_work)(void *ctx_cookie, u64 irqs);44 int (*fd_mmap)(struct file *file, struct vm_area_struct *vm);45 int (*fd_release)(struct inode *inode, struct file *file);46};47 48#endif /* _CXLFLASH_BACKEND_H */49