1 /* SPDX-License-Identifier: GPL-2.0 */
5  * Copyright (C) 2017-2018 Intel Corporation, Inc.
24 #include <linux/io-64-nonatomic-lo-hi.h>
28 #include <linux/fpga/fpga-region.h>
111 /* AFU MMIO access permission. 1 - VF, 0 - PF. */
140 #define PORT_CAP_SUPP_INT_NUM	GENMASK_ULL(35, 32)	/* Interrupts num */
168 #define PORT_UINT_CAP_INT_NUM	GENMASK_ULL(11, 0)	/* Interrupts num */
172  * struct dfl_fpga_port_ops - port ops
195  * struct dfl_feature_id - dfl private feature id
204  * struct dfl_feature_driver - dfl private feature driver
215  * struct dfl_feature_irq_ctx - dfl private feature interrupt context
228  * struct dfl_feature - sub feature of the feature devices
254 #define FEATURE_DEV_ID_UNUSED	(-1)
257  * struct dfl_feature_platform_data - platform data for feature devices
268  * @num: number for sub features.
283 	int num;  member
291 	if (pdata->excl_open)  in dfl_feature_dev_use_begin()
292 		return -EBUSY;  in dfl_feature_dev_use_begin()
295 		if (pdata->open_count)  in dfl_feature_dev_use_begin()
296 			return -EBUSY;  in dfl_feature_dev_use_begin()
298 		pdata->excl_open = true;  in dfl_feature_dev_use_begin()
300 	pdata->open_count++;  in dfl_feature_dev_use_begin()
308 	pdata->excl_open = false;  in dfl_feature_dev_use_end()
310 	if (WARN_ON(pdata->open_count <= 0))  in dfl_feature_dev_use_end()
313 	pdata->open_count--;  in dfl_feature_dev_use_end()
319 	return pdata->open_count;  in dfl_feature_dev_use_count()
326 	pdata->private = private;  in dfl_fpga_pdata_set_private()
332 	return pdata->private;  in dfl_fpga_pdata_get_private()
343 #define DFL_FPGA_FEATURE_DEV_FME		"dfl-fme"
344 #define DFL_FPGA_FEATURE_DEV_PORT		"dfl-port"
360 	pdata = container_of(inode->i_cdev, struct dfl_feature_platform_data,  in dfl_fpga_inode_to_feature_dev()
362 	return pdata->dev;  in dfl_fpga_inode_to_feature_dev()
366 	for ((feature) = (pdata)->features;				    \
367 	   (feature) < (pdata)->features + (pdata)->num; (feature)++)
376 		if (feature->id == id)  in dfl_get_feature_by_id()
387 	if (feature && feature->ioaddr)  in dfl_get_feature_ioaddr_by_id()
388 		return feature->ioaddr;  in dfl_get_feature_ioaddr_by_id()
402 	return pdata->dev->dev.parent->parent;  in dfl_fpga_pdata_to_parent()
427  * struct dfl_fpga_enum_info - DFL FPGA enumeration information
431  * @nr_irqs: number of irqs for all feature devices.
432  * @irq_table: Linux IRQ numbers for all irqs, indexed by hw irq numbers.
442  * struct dfl_fpga_enum_dfl - DFL FPGA enumeration device feature list info
462  * struct dfl_fpga_cdev - container device of DFL based FPGA
499 	mutex_lock(&cdev->lock);  in dfl_fpga_cdev_find_port()
501 	mutex_unlock(&cdev->lock);  in dfl_fpga_cdev_find_port()
520  * enum dfl_id_type - define the DFL FIU types
529  * struct dfl_device_id -  dfl device identifier
541  * struct dfl_device - represent an dfl device on dfl bus
548  * @irqs: list of Linux IRQ numbers of this dfl device.
549  * @num_irqs: number of IRQs supported by this dfl device.
559 	int *irqs;  member
566  * struct dfl_driver - represent an dfl device driver
594  * module_dfl_driver() - Helper macro for drivers that don't do