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41a8b2c564
This patch introduces a compat_id pointer member and sysfs interface for each fpga region, similar as compat_id for fpga manager, it allows applications to read the per region compat_id for compatibility checking before other actions on this fpga-region (e.g. PR). Signed-off-by: Wu Hao <hao.wu@intel.com> Acked-by: Alan Tull <atull@kernel.org> Acked-by: Moritz Fischer <mdf@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
47 lines
1.4 KiB
C
47 lines
1.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _FPGA_REGION_H
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#define _FPGA_REGION_H
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#include <linux/device.h>
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#include <linux/fpga/fpga-mgr.h>
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#include <linux/fpga/fpga-bridge.h>
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/**
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* struct fpga_region - FPGA Region structure
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* @dev: FPGA Region device
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* @mutex: enforces exclusive reference to region
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* @bridge_list: list of FPGA bridges specified in region
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* @mgr: FPGA manager
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* @info: FPGA image info
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* @compat_id: FPGA region id for compatibility check.
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* @priv: private data
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* @get_bridges: optional function to get bridges to a list
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*/
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struct fpga_region {
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struct device dev;
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struct mutex mutex; /* for exclusive reference to region */
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struct list_head bridge_list;
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struct fpga_manager *mgr;
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struct fpga_image_info *info;
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struct fpga_compat_id *compat_id;
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void *priv;
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int (*get_bridges)(struct fpga_region *region);
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};
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#define to_fpga_region(d) container_of(d, struct fpga_region, dev)
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struct fpga_region *fpga_region_class_find(
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struct device *start, const void *data,
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int (*match)(struct device *, const void *));
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int fpga_region_program_fpga(struct fpga_region *region);
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struct fpga_region
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*fpga_region_create(struct device *dev, struct fpga_manager *mgr,
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int (*get_bridges)(struct fpga_region *));
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void fpga_region_free(struct fpga_region *region);
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int fpga_region_register(struct fpga_region *region);
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void fpga_region_unregister(struct fpga_region *region);
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#endif /* _FPGA_REGION_H */
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