| xj | b04a402 | 2021-11-25 15:01:52 +0800 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0 */
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| 2 | /*
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| 3 | * Copyright (c) 2019 MediaTek Inc.
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| 4 | */
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| 5 | #ifndef __EMI_H__
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| 6 | #define __EMI_H__
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| 7 |
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| 8 | #include <linux/irqreturn.h>
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| 9 | #define MTK_EMIMPU_NO_PROTECTION 0
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| 10 | #define MTK_EMIMPU_SEC_RW 1
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| 11 | #define MTK_EMIMPU_SEC_RW_NSEC_R 2
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| 12 | #define MTK_EMIMPU_SEC_RW_NSEC_W 3
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| 13 | #define MTK_EMIMPU_SEC_R_NSEC_R 4
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| 14 | #define MTK_EMIMPU_FORBIDDEN 5
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| 15 | #define MTK_EMIMPU_SEC_R_NSEC_RW 6
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| 16 |
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| 17 | #define MTK_EMIMPU_UNLOCK false
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| 18 | #define MTK_EMIMPU_LOCK true
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| 19 |
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| 20 | #define MTK_EMIMPU_SET 0
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| 21 | #define MTK_EMIMPU_CLEAR 1
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| 22 | #define MTK_EMIMPU_READ 2
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| 23 | #define MTK_EMIMPU_SLVERR 3
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| 24 | #define MTK_EMIDBG_DUMP 4
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| 25 | #define MTK_EMIDBG_MSG 5
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| 26 |
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| 27 | #define MTK_EMIMPU_READ_SA 0
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| 28 | #define MTK_EMIMPU_READ_EA 1
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| 29 | #define MTK_EMIMPU_READ_APC 2
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| 30 | #define MTK_EMI_MAX_TOKEN 4
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| 31 |
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| 32 | #define MTK_EMI_MAX_CMD_LEN 4096
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| 33 |
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| 34 | struct emi_addr_map {
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| 35 | int emi;
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| 36 | int channel;
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| 37 | int rank;
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| 38 | int bank;
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| 39 | int row;
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| 40 | int column;
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| 41 | };
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| 42 |
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| 43 | struct reg_info_t {
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| 44 | unsigned int offset;
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| 45 | unsigned int value;
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| 46 | unsigned int leng;
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| 47 | };
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| 48 |
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| 49 | struct emimpu_region_t {
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| 50 | unsigned long long start;
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| 51 | unsigned long long end;
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| 52 | unsigned int rg_num;
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| 53 | bool lock;
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| 54 | unsigned int *apc;
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| 55 | };
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| 56 |
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| 57 | typedef irqreturn_t (*emimpu_pre_handler)(
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| 58 | unsigned int emi_id, struct reg_info_t *dump, unsigned int leng);
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| 59 | typedef void (*emimpu_post_clear)(unsigned int emi_id);
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| 60 | typedef void (*emimpu_md_handler)(
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| 61 | unsigned int emi_id, struct reg_info_t *dump, unsigned int leng);
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| 62 | typedef void (*emimpu_debug_dump)(void);
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| 63 |
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| 64 | struct emimpu_dbg_cb {
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| 65 | emimpu_debug_dump func;
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| 66 | struct emimpu_dbg_cb *next_dbg_cb;
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| 67 | };
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| 68 |
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| 69 | /* mtk emicen api */
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| 70 | unsigned int mtk_emicen_get_ch_cnt(void);
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| 71 | unsigned int mtk_emicen_get_rk_cnt(void);
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| 72 | unsigned int mtk_emicen_get_rk_size(unsigned int rk_id);
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| 73 | int mtk_emicen_addr2dram(unsigned long addr, struct emi_addr_map *map);
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| 74 |
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| 75 | /* mtk emidbg api */
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| 76 | void mtk_emidbg_dump(void);
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| 77 |
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| 78 | /* mtk emimpu api */
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| 79 | int emimpu_ap_region_init(void);
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| 80 | int mtk_emimpu_init_region(
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| 81 | struct emimpu_region_t *rg_info, unsigned int rg_num);
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| 82 | int mtk_emimpu_set_addr(struct emimpu_region_t *rg_info,
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| 83 | unsigned long long start, unsigned long long end);
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| 84 | int mtk_emimpu_set_apc(struct emimpu_region_t *rg_info,
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| 85 | unsigned int d_num, unsigned int apc);
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| 86 | int mtk_emimpu_lock_region(struct emimpu_region_t *rg_info, bool lock);
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| 87 | int mtk_emimpu_set_protection(struct emimpu_region_t *rg_info);
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| 88 | int mtk_emimpu_free_region(struct emimpu_region_t *rg_info);
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| 89 | int mtk_emimpu_clear_protection(struct emimpu_region_t *rg_info);
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| 90 | int mtk_emimpu_prehandle_register(emimpu_pre_handler bypass_func);
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| 91 | int mtk_emimpu_postclear_register(emimpu_post_clear clear_func);
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| 92 | int mtk_emimpu_md_handling_register(emimpu_md_handler md_handling_func);
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| 93 | int mtk_emimpu_debugdump_register(emimpu_debug_dump debug_func);
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| 94 | void mtk_clear_md_violation(void);
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| 95 |
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| 96 | #endif /* __EMI_H__ */
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