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/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @ingroup RTEMSBSPsPowerPCQorIQMMU
*
* @brief MMU API.
*/
/*
* Copyright (c) 2011-2015 embedded brains GmbH. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef LIBBSP_POWERPC_QORIQ_MMU_H
#define LIBBSP_POWERPC_QORIQ_MMU_H
#include <stdint.h>
#include <stdbool.h>
#include <bspopts.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/**
* @defgroup QorIQMMU QorIQ - MMU Support
*
* @ingroup RTEMSBSPsPowerPCQorIQ
*
* @brief MMU support.
*
* @{
*/
#define QORIQ_MMU_MIN_POWER 12
#define QORIQ_MMU_MAX_POWER 30
#define QORIQ_MMU_POWER_STEP 2
typedef struct {
uintptr_t begin;
uintptr_t last;
uint32_t mas1;
uint32_t mas2;
uint32_t mas3;
uint32_t mas7;
} qoriq_mmu_entry;
typedef struct {
int count;
qoriq_mmu_entry entries [QORIQ_TLB1_ENTRY_COUNT];
} qoriq_mmu_context;
void qoriq_mmu_context_init(qoriq_mmu_context *self);
bool qoriq_mmu_add(
qoriq_mmu_context *self,
uintptr_t begin,
uintptr_t last,
uint32_t mas1,
uint32_t mas2,
uint32_t mas3,
uint32_t mas7
);
void qoriq_mmu_partition(qoriq_mmu_context *self, int max_count);
void qoriq_mmu_write_to_tlb1(qoriq_mmu_context *self, int first_tlb);
void qoriq_mmu_change_perm(uint32_t test, uint32_t set, uint32_t clear);
void qoriq_mmu_config(bool boot_processor, int first_tlb, int scratch_tlb);
void qoriq_tlb1_write(
int esel,
uint32_t mas1,
uint32_t mas2,
uint32_t mas3,
uint32_t mas7,
uintptr_t ea,
int tsize
);
void qoriq_tlb1_invalidate(int esel);
/** @} */
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* LIBBSP_POWERPC_QORIQ_MMU_H */
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