RTEMS: bsps/powerpc/qoriq/include/bsp/mmu.h Source File

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mmu.h
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1
9/*
10 * Copyright (c) 2011-2015 embedded brains GmbH. All rights reserved.
11 *
12 * embedded brains GmbH
13 * Dornierstr. 4
14 * 82178 Puchheim
15 * Germany
16 * <rtems@embedded-brains.de>
17 *
18 * The license and distribution terms for this file may be
19 * found in the file LICENSE in this distribution or at
20 * http://www.rtems.org/license/LICENSE.
21 */
22
23#ifndef LIBBSP_POWERPC_QORIQ_MMU_H
24#define LIBBSP_POWERPC_QORIQ_MMU_H
25
26#include <stdint.h>
27#include <stdbool.h>
28
29#include <bspopts.h>
30
31#ifdef __cplusplus
32extern "C" {
33#endif /* __cplusplus */
34
45#define QORIQ_MMU_MIN_POWER 12
46#define QORIQ_MMU_MAX_POWER 30
47#define QORIQ_MMU_POWER_STEP 2
48
49 typedef struct {
50 uintptr_t begin;
51 uintptr_t last;
52 uint32_t mas1;
53 uint32_t mas2;
54 uint32_t mas3;
55 uint32_t mas7;
56} qoriq_mmu_entry;
57
58 typedef struct {
59 int count;
60 qoriq_mmu_entry entries [QORIQ_TLB1_ENTRY_COUNT];
61} qoriq_mmu_context;
62
63void qoriq_mmu_context_init(qoriq_mmu_context *self);
64
65bool qoriq_mmu_add(
66 qoriq_mmu_context *self,
67 uintptr_t begin,
68 uintptr_t last,
69 uint32_t mas1,
70 uint32_t mas2,
71 uint32_t mas3,
72 uint32_t mas7
73);
74
75void qoriq_mmu_partition(qoriq_mmu_context *self, int max_count);
76
77void qoriq_mmu_write_to_tlb1(qoriq_mmu_context *self, int first_tlb);
78
79void qoriq_mmu_change_perm(uint32_t test, uint32_t set, uint32_t clear);
80
81void qoriq_mmu_config(bool boot_processor, int first_tlb, int scratch_tlb);
82
83void qoriq_tlb1_write(
84 int esel,
85 uint32_t mas1,
86 uint32_t mas2,
87 uint32_t mas3,
88 uint32_t mas7,
89 uintptr_t ea,
90 int tsize
91);
92
93void qoriq_tlb1_invalidate(int esel);
94
97#ifdef __cplusplus
98}
99#endif /* __cplusplus */
100
101#endif /* LIBBSP_POWERPC_QORIQ_MMU_H */
qoriq_mmu_context
Definition: mmu.h:58
qoriq_mmu_entry
Definition: mmu.h:49