linux/drivers/net/ipa/ipa_resource.c

// SPDX-License-Identifier: GPL-2.0

/* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved.
 * Copyright (C) 2018-2024 Linaro Ltd.
 */

#include <linux/types.h>

#include "ipa.h"
#include "ipa_data.h"
#include "ipa_reg.h"
#include "ipa_resource.h"

/**
 * DOC: IPA Resources
 *
 * The IPA manages a set of resources internally for various purposes.
 * A given IPA version has a fixed number of resource types, and a fixed
 * total number of resources of each type.  "Source" resource types
 * are separate from "destination" resource types.
 *
 * Each version of IPA also has some number of resource groups.  Each
 * endpoint is assigned to a resource group, and all endpoints in the
 * same group share pools of each type of resource.  A subset of the
 * total resources of each type is assigned for use by each group.
 */

static bool ipa_resource_limits_valid(struct ipa *ipa,
				      const struct ipa_resource_data *data)
{ … }

static void
ipa_resource_config_common(struct ipa *ipa, u32 resource_type,
			   const struct reg *reg,
			   const struct ipa_resource_limits *xlimits,
			   const struct ipa_resource_limits *ylimits)
{ … }

static void ipa_resource_config_src(struct ipa *ipa, u32 resource_type,
				    const struct ipa_resource_data *data)
{ … }

static void ipa_resource_config_dst(struct ipa *ipa, u32 resource_type,
				    const struct ipa_resource_data *data)
{ … }

/* Configure resources; there is no ipa_resource_deconfig() */
int ipa_resource_config(struct ipa *ipa, const struct ipa_resource_data *data)
{ … }