mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-20 06:49:29 +07:00
371cd1b1fd
Change fpga_bridge_register to not set drvdata. This is to support
the case where a PCIe device can have more than one bridge.
Add API functions to create/free the fpga bridge struct. Change
fpga_bridge_register/unregister to take FPGA bridge struct as
the only parameter.
struct fpga_bridge
*fpga_bridge_create(struct device *dev, const char *name,
const struct fpga_bridge_ops *br_ops,
void *priv);
void fpga_bridge_free(struct fpga_bridge *br);
int fpga_bridge_register(struct fpga_bridge *br);
void fpga_bridge_unregister(struct fpga_bridge *br);
Update the drivers that call fpga_bridge_register with the new API.
Signed-off-by: Alan Tull <atull@kernel.org>
Reported-by: Jiuyue Ma <majiuyue@huawei.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
73 lines
2.4 KiB
C
73 lines
2.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
|
|
#ifndef _LINUX_FPGA_BRIDGE_H
|
|
#define _LINUX_FPGA_BRIDGE_H
|
|
|
|
#include <linux/device.h>
|
|
#include <linux/fpga/fpga-mgr.h>
|
|
|
|
struct fpga_bridge;
|
|
|
|
/**
|
|
* struct fpga_bridge_ops - ops for low level FPGA bridge drivers
|
|
* @enable_show: returns the FPGA bridge's status
|
|
* @enable_set: set a FPGA bridge as enabled or disabled
|
|
* @fpga_bridge_remove: set FPGA into a specific state during driver remove
|
|
* @groups: optional attribute groups.
|
|
*/
|
|
struct fpga_bridge_ops {
|
|
int (*enable_show)(struct fpga_bridge *bridge);
|
|
int (*enable_set)(struct fpga_bridge *bridge, bool enable);
|
|
void (*fpga_bridge_remove)(struct fpga_bridge *bridge);
|
|
const struct attribute_group **groups;
|
|
};
|
|
|
|
/**
|
|
* struct fpga_bridge - FPGA bridge structure
|
|
* @name: name of low level FPGA bridge
|
|
* @dev: FPGA bridge device
|
|
* @mutex: enforces exclusive reference to bridge
|
|
* @br_ops: pointer to struct of FPGA bridge ops
|
|
* @info: fpga image specific information
|
|
* @node: FPGA bridge list node
|
|
* @priv: low level driver private date
|
|
*/
|
|
struct fpga_bridge {
|
|
const char *name;
|
|
struct device dev;
|
|
struct mutex mutex; /* for exclusive reference to bridge */
|
|
const struct fpga_bridge_ops *br_ops;
|
|
struct fpga_image_info *info;
|
|
struct list_head node;
|
|
void *priv;
|
|
};
|
|
|
|
#define to_fpga_bridge(d) container_of(d, struct fpga_bridge, dev)
|
|
|
|
struct fpga_bridge *of_fpga_bridge_get(struct device_node *node,
|
|
struct fpga_image_info *info);
|
|
struct fpga_bridge *fpga_bridge_get(struct device *dev,
|
|
struct fpga_image_info *info);
|
|
void fpga_bridge_put(struct fpga_bridge *bridge);
|
|
int fpga_bridge_enable(struct fpga_bridge *bridge);
|
|
int fpga_bridge_disable(struct fpga_bridge *bridge);
|
|
|
|
int fpga_bridges_enable(struct list_head *bridge_list);
|
|
int fpga_bridges_disable(struct list_head *bridge_list);
|
|
void fpga_bridges_put(struct list_head *bridge_list);
|
|
int fpga_bridge_get_to_list(struct device *dev,
|
|
struct fpga_image_info *info,
|
|
struct list_head *bridge_list);
|
|
int of_fpga_bridge_get_to_list(struct device_node *np,
|
|
struct fpga_image_info *info,
|
|
struct list_head *bridge_list);
|
|
|
|
struct fpga_bridge *fpga_bridge_create(struct device *dev, const char *name,
|
|
const struct fpga_bridge_ops *br_ops,
|
|
void *priv);
|
|
void fpga_bridge_free(struct fpga_bridge *br);
|
|
int fpga_bridge_register(struct fpga_bridge *br);
|
|
void fpga_bridge_unregister(struct fpga_bridge *br);
|
|
|
|
#endif /* _LINUX_FPGA_BRIDGE_H */
|