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Diffstat (limited to 'include/linux/fpga/fpga-region.h')
-rw-r--r-- | include/linux/fpga/fpga-region.h | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/include/linux/fpga/fpga-region.h b/include/linux/fpga/fpga-region.h new file mode 100644 index 000000000..9d4d32909 --- /dev/null +++ b/include/linux/fpga/fpga-region.h @@ -0,0 +1,69 @@ +/* SPDX-License-Identifier: GPL-2.0 */ + +#ifndef _FPGA_REGION_H +#define _FPGA_REGION_H + +#include <linux/device.h> +#include <linux/fpga/fpga-mgr.h> +#include <linux/fpga/fpga-bridge.h> + +struct fpga_region; + +/** + * struct fpga_region_info - collection of parameters an FPGA Region + * @mgr: fpga region manager + * @compat_id: FPGA region id for compatibility check. + * @priv: fpga region private data + * @get_bridges: optional function to get bridges to a list + * + * fpga_region_info contains parameters for the register_full function. + * These are separated into an info structure because they some are optional + * others could be added to in the future. The info structure facilitates + * maintaining a stable API. + */ +struct fpga_region_info { + struct fpga_manager *mgr; + struct fpga_compat_id *compat_id; + void *priv; + int (*get_bridges)(struct fpga_region *region); +}; + +/** + * struct fpga_region - FPGA Region structure + * @dev: FPGA Region device + * @mutex: enforces exclusive reference to region + * @bridge_list: list of FPGA bridges specified in region + * @mgr: FPGA manager + * @info: FPGA image info + * @compat_id: FPGA region id for compatibility check. + * @priv: private data + * @get_bridges: optional function to get bridges to a list + */ +struct fpga_region { + struct device dev; + struct mutex mutex; /* for exclusive reference to region */ + struct list_head bridge_list; + struct fpga_manager *mgr; + struct fpga_image_info *info; + struct fpga_compat_id *compat_id; + void *priv; + int (*get_bridges)(struct fpga_region *region); +}; + +#define to_fpga_region(d) container_of(d, struct fpga_region, dev) + +struct fpga_region * +fpga_region_class_find(struct device *start, const void *data, + int (*match)(struct device *, const void *)); + +int fpga_region_program_fpga(struct fpga_region *region); + +struct fpga_region * +fpga_region_register_full(struct device *parent, const struct fpga_region_info *info); + +struct fpga_region * +fpga_region_register(struct device *parent, struct fpga_manager *mgr, + int (*get_bridges)(struct fpga_region *)); +void fpga_region_unregister(struct fpga_region *region); + +#endif /* _FPGA_REGION_H */ |