forked from Imagelibrary/rtems
102 lines
1.8 KiB
C
102 lines
1.8 KiB
C
/**
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* @file
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*
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* @ingroup RTEMSBSPsPowerPCQorIQMMU
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*
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* @brief MMU API.
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*/
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/*
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* Copyright (c) 2011-2015 embedded brains GmbH. All rights reserved.
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*
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* embedded brains GmbH
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* Dornierstr. 4
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* 82178 Puchheim
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* Germany
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* <rtems@embedded-brains.de>
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.org/license/LICENSE.
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*/
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#ifndef LIBBSP_POWERPC_QORIQ_MMU_H
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#define LIBBSP_POWERPC_QORIQ_MMU_H
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#include <stdint.h>
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#include <stdbool.h>
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#include <bspopts.h>
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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/**
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* @defgroup QorIQMMU QorIQ - MMU Support
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*
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* @ingroup RTEMSBSPsPowerPCQorIQ
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*
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* @brief MMU support.
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*
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* @{
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*/
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#define QORIQ_MMU_MIN_POWER 12
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#define QORIQ_MMU_MAX_POWER 30
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#define QORIQ_MMU_POWER_STEP 2
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typedef struct {
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uintptr_t begin;
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uintptr_t last;
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uint32_t mas1;
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uint32_t mas2;
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uint32_t mas3;
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uint32_t mas7;
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} qoriq_mmu_entry;
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typedef struct {
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int count;
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qoriq_mmu_entry entries [QORIQ_TLB1_ENTRY_COUNT];
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} qoriq_mmu_context;
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void qoriq_mmu_context_init(qoriq_mmu_context *self);
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bool qoriq_mmu_add(
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qoriq_mmu_context *self,
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uintptr_t begin,
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uintptr_t last,
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uint32_t mas1,
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uint32_t mas2,
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uint32_t mas3,
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uint32_t mas7
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);
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void qoriq_mmu_partition(qoriq_mmu_context *self, int max_count);
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void qoriq_mmu_write_to_tlb1(qoriq_mmu_context *self, int first_tlb);
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void qoriq_mmu_change_perm(uint32_t test, uint32_t set, uint32_t clear);
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void qoriq_mmu_config(bool boot_processor, int first_tlb, int scratch_tlb);
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void qoriq_tlb1_write(
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int esel,
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uint32_t mas1,
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uint32_t mas2,
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uint32_t mas3,
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uint32_t mas7,
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uintptr_t ea,
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int tsize
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);
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void qoriq_tlb1_invalidate(int esel);
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/** @} */
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* LIBBSP_POWERPC_QORIQ_MMU_H */
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