linux/drivers/fpga/dfl-fme-pr.c

// SPDX-License-Identifier: GPL-2.0
/*
 * Driver for FPGA Management Engine (FME) Partial Reconfiguration
 *
 * Copyright (C) 2017-2018 Intel Corporation, Inc.
 *
 * Authors:
 *   Kang Luwei <[email protected]>
 *   Xiao Guangrong <[email protected]>
 *   Wu Hao <[email protected]>
 *   Joseph Grecco <[email protected]>
 *   Enno Luebbers <[email protected]>
 *   Tim Whisonant <[email protected]>
 *   Ananda Ravuri <[email protected]>
 *   Christopher Rauer <[email protected]>
 *   Henry Mitchel <[email protected]>
 */

#include <linux/types.h>
#include <linux/device.h>
#include <linux/vmalloc.h>
#include <linux/uaccess.h>
#include <linux/fpga/fpga-mgr.h>
#include <linux/fpga/fpga-bridge.h>
#include <linux/fpga/fpga-region.h>
#include <linux/fpga-dfl.h>

#include "dfl.h"
#include "dfl-fme.h"
#include "dfl-fme-pr.h"

static struct dfl_fme_region *
dfl_fme_region_find_by_port_id(struct dfl_fme *fme, int port_id)
{ … }

static int dfl_fme_region_match(struct device *dev, const void *data)
{ … }

static struct fpga_region *dfl_fme_region_find(struct dfl_fme *fme, int port_id)
{ … }

static int fme_pr(struct platform_device *pdev, unsigned long arg)
{ … }

/**
 * dfl_fme_create_mgr - create fpga mgr platform device as child device
 * @feature: sub feature info
 * @pdata: fme platform_device's pdata
 *
 * Return: mgr platform device if successful, and error code otherwise.
 */
static struct platform_device *
dfl_fme_create_mgr(struct dfl_feature_platform_data *pdata,
		   struct dfl_feature *feature)
{ … }

/**
 * dfl_fme_destroy_mgr - destroy fpga mgr platform device
 * @pdata: fme platform device's pdata
 */
static void dfl_fme_destroy_mgr(struct dfl_feature_platform_data *pdata)
{ … }

/**
 * dfl_fme_create_bridge - create fme fpga bridge platform device as child
 *
 * @pdata: fme platform device's pdata
 * @port_id: port id for the bridge to be created.
 *
 * Return: bridge platform device if successful, and error code otherwise.
 */
static struct dfl_fme_bridge *
dfl_fme_create_bridge(struct dfl_feature_platform_data *pdata, int port_id)
{ … }

/**
 * dfl_fme_destroy_bridge - destroy fpga bridge platform device
 * @fme_br: fme bridge to destroy
 */
static void dfl_fme_destroy_bridge(struct dfl_fme_bridge *fme_br)
{ … }

/**
 * dfl_fme_destroy_bridges - destroy all fpga bridge platform device
 * @pdata: fme platform device's pdata
 */
static void dfl_fme_destroy_bridges(struct dfl_feature_platform_data *pdata)
{ … }

/**
 * dfl_fme_create_region - create fpga region platform device as child
 *
 * @pdata: fme platform device's pdata
 * @mgr: mgr platform device needed for region
 * @br: br platform device needed for region
 * @port_id: port id
 *
 * Return: fme region if successful, and error code otherwise.
 */
static struct dfl_fme_region *
dfl_fme_create_region(struct dfl_feature_platform_data *pdata,
		      struct platform_device *mgr,
		      struct platform_device *br, int port_id)
{ … }

/**
 * dfl_fme_destroy_region - destroy fme region
 * @fme_region: fme region to destroy
 */
static void dfl_fme_destroy_region(struct dfl_fme_region *fme_region)
{ … }

/**
 * dfl_fme_destroy_regions - destroy all fme regions
 * @pdata: fme platform device's pdata
 */
static void dfl_fme_destroy_regions(struct dfl_feature_platform_data *pdata)
{ … }

static int pr_mgmt_init(struct platform_device *pdev,
			struct dfl_feature *feature)
{ … }

static void pr_mgmt_uinit(struct platform_device *pdev,
			  struct dfl_feature *feature)
{ … }

static long fme_pr_ioctl(struct platform_device *pdev,
			 struct dfl_feature *feature,
			 unsigned int cmd, unsigned long arg)
{ … }

const struct dfl_feature_id fme_pr_mgmt_id_table[] = …;

const struct dfl_feature_ops fme_pr_mgmt_ops = …;