cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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ipa_table.h (2156B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2
      3/* Copyright (c) 2012-2018, The Linux Foundation. All rights reserved.
      4 * Copyright (C) 2019-2021 Linaro Ltd.
      5 */
      6#ifndef _IPA_TABLE_H_
      7#define _IPA_TABLE_H_
      8
      9#include <linux/types.h>
     10
     11struct ipa;
     12
     13/* The maximum number of filter table entries (IPv4, IPv6; hashed or not) */
     14#define IPA_FILTER_COUNT_MAX	14
     15
     16/* The maximum number of route table entries (IPv4, IPv6; hashed or not) */
     17#define IPA_ROUTE_COUNT_MAX	15
     18
     19/**
     20 * ipa_table_valid() - Validate route and filter table memory regions
     21 * @ipa:	IPA pointer
     22 *
     23 * Return:	true if all regions are valid, false otherwise
     24 */
     25bool ipa_table_valid(struct ipa *ipa);
     26
     27/**
     28 * ipa_filter_map_valid() - Validate a filter table endpoint bitmap
     29 * @ipa:	IPA pointer
     30 * @filter_mask: Filter table endpoint bitmap to check
     31 *
     32 * Return:	true if all regions are valid, false otherwise
     33 */
     34bool ipa_filter_map_valid(struct ipa *ipa, u32 filter_mask);
     35
     36/**
     37 * ipa_table_hash_support() - Return true if hashed tables are supported
     38 * @ipa:	IPA pointer
     39 */
     40static inline bool ipa_table_hash_support(struct ipa *ipa)
     41{
     42	return ipa->version != IPA_VERSION_4_2;
     43}
     44
     45/**
     46 * ipa_table_reset() - Reset filter and route tables entries to "none"
     47 * @ipa:	IPA pointer
     48 * @modem:	Whether to reset modem or AP entries
     49 */
     50void ipa_table_reset(struct ipa *ipa, bool modem);
     51
     52/**
     53 * ipa_table_hash_flush() - Synchronize hashed filter and route updates
     54 * @ipa:	IPA pointer
     55 */
     56int ipa_table_hash_flush(struct ipa *ipa);
     57
     58/**
     59 * ipa_table_setup() - Set up filter and route tables
     60 * @ipa:	IPA pointer
     61 *
     62 * There is no need for a matching ipa_table_teardown() function.
     63 */
     64int ipa_table_setup(struct ipa *ipa);
     65
     66/**
     67 * ipa_table_config() - Configure filter and route tables
     68 * @ipa:	IPA pointer
     69 *
     70 * There is no need for a matching ipa_table_deconfig() function.
     71 */
     72void ipa_table_config(struct ipa *ipa);
     73
     74/**
     75 * ipa_table_init() - Do early initialization of filter and route tables
     76 * @ipa:	IPA pointer
     77 */
     78int ipa_table_init(struct ipa *ipa);
     79
     80/**
     81 * ipa_table_exit() - Inverse of ipa_table_init()
     82 * @ipa:	IPA pointer
     83 */
     84void ipa_table_exit(struct ipa *ipa);
     85
     86#endif /* _IPA_TABLE_H_ */