mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-19 18:58:48 +07:00
402a55ea47
OCXL requires that AFUs use an opaque object handle to represent an AFU interrupt. The specification does not provide a common means to communicate the object handle to the AFU - each AFU must define this within the AFU specification. To support this model, the object handle must be passed back to the core driver as it manages the AFU specification (SISLite) for cxlflash. Note that for Power systems, the object handle is the effective address of the trigger page. Signed-off-by: Uma Krishnan <ukrishn@linux.vnet.ibm.com> Acked-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
48 lines
1.9 KiB
C
48 lines
1.9 KiB
C
/*
|
|
* CXL Flash Device Driver
|
|
*
|
|
* Written by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>, IBM Corporation
|
|
* Uma Krishnan <ukrishn@linux.vnet.ibm.com>, IBM Corporation
|
|
*
|
|
* Copyright (C) 2018 IBM Corporation
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version
|
|
* 2 of the License, or (at your option) any later version.
|
|
*/
|
|
|
|
extern const struct cxlflash_backend_ops cxlflash_cxl_ops;
|
|
extern const struct cxlflash_backend_ops cxlflash_ocxl_ops;
|
|
|
|
struct cxlflash_backend_ops {
|
|
struct module *module;
|
|
void __iomem * (*psa_map)(void *ctx_cookie);
|
|
void (*psa_unmap)(void __iomem *addr);
|
|
int (*process_element)(void *ctx_cookie);
|
|
int (*map_afu_irq)(void *ctx_cookie, int num, irq_handler_t handler,
|
|
void *cookie, char *name);
|
|
void (*unmap_afu_irq)(void *ctx_cookie, int num, void *cookie);
|
|
u64 (*get_irq_objhndl)(void *ctx_cookie, int irq);
|
|
int (*start_context)(void *ctx_cookie);
|
|
int (*stop_context)(void *ctx_cookie);
|
|
int (*afu_reset)(void *ctx_cookie);
|
|
void (*set_master)(void *ctx_cookie);
|
|
void * (*get_context)(struct pci_dev *dev, void *afu_cookie);
|
|
void * (*dev_context_init)(struct pci_dev *dev, void *afu_cookie);
|
|
int (*release_context)(void *ctx_cookie);
|
|
void (*perst_reloads_same_image)(void *afu_cookie, bool image);
|
|
ssize_t (*read_adapter_vpd)(struct pci_dev *dev, void *buf,
|
|
size_t count);
|
|
int (*allocate_afu_irqs)(void *ctx_cookie, int num);
|
|
void (*free_afu_irqs)(void *ctx_cookie);
|
|
void * (*create_afu)(struct pci_dev *dev);
|
|
void (*destroy_afu)(void *afu_cookie);
|
|
struct file * (*get_fd)(void *ctx_cookie, struct file_operations *fops,
|
|
int *fd);
|
|
void * (*fops_get_context)(struct file *file);
|
|
int (*start_work)(void *ctx_cookie, u64 irqs);
|
|
int (*fd_mmap)(struct file *file, struct vm_area_struct *vm);
|
|
int (*fd_release)(struct inode *inode, struct file *file);
|
|
};
|