171 lines
4.4 KiB
C
171 lines
4.4 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (c) 2019 MediaTek Inc.
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* Author: Sagy Shih <sagy.shih@mediatek.com>
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*/
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#ifndef __EMI_H__
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#define __EMI_H__
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#include <linux/workqueue.h>
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#include <linux/irqreturn.h>
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#include <linux/dcache.h>
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#define MTK_EMIMPU_NO_PROTECTION 0
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#define MTK_EMIMPU_SEC_RW 1
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#define MTK_EMIMPU_SEC_RW_NSEC_R 2
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#define MTK_EMIMPU_SEC_RW_NSEC_W 3
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#define MTK_EMIMPU_SEC_R_NSEC_R 4
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#define MTK_EMIMPU_FORBIDDEN 5
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#define MTK_EMIMPU_SEC_R_NSEC_RW 6
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#define MTK_EMIMPU_UNLOCK false
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#define MTK_EMIMPU_LOCK true
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#define MTK_EMIMPU_SET 0
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#define MTK_EMIMPU_CLEAR 1
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#define MTK_EMIMPU_READ 2
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#define MTK_EMIMPU_SLVERR 3
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#define MTK_EMIDBG_DUMP 4
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#define MTK_EMIDBG_MSG 5
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#define MTK_EMIMPU_READ_SA 0
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#define MTK_EMIMPU_READ_EA 1
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#define MTK_EMIMPU_READ_APC 2
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#define MTK_EMI_MAX_TOKEN 4
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#ifdef CONFIG_MTK_EMI
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#define MTK_EMI_MAX_CMD_LEN 4096
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#endif
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#ifdef CONFIG_MEDIATEK_EMI
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#define MTK_EMI_MAX_CMD_LEN 256
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struct emi_addr_map {
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int emi;
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int channel;
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int rank;
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int bank;
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int row;
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int column;
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};
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#endif
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struct reg_info_t {
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unsigned int offset;
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unsigned int value;
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unsigned int leng;
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};
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#ifdef CONFIG_MTK_EMI
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struct emicen_dev_t {
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unsigned int emi_cen_cnt;
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unsigned int ch_cnt;
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unsigned int rk_cnt;
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unsigned long long *rk_size;
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void __iomem **emi_cen_base;
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void __iomem **emi_chn_base;
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};
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struct emimpu_dbg_cb {
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void (*func)(void);
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struct emimpu_dbg_cb *next_dbg_cb;
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};
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struct emimpu_dev_t {
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unsigned int region_cnt;
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unsigned int domain_cnt;
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unsigned int addr_align;
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unsigned long long dram_start;
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unsigned long long dram_end;
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unsigned int dump_cnt;
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unsigned int clear_reg_cnt;
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unsigned int clear_md_reg_cnt;
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unsigned int emi_cen_cnt;
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struct reg_info_t *dump_reg;
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struct reg_info_t *clear_reg;
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struct reg_info_t *clear_md_reg;
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void __iomem **emi_cen_base;
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void __iomem **emi_mpu_base;
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char *violation_msg;
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unsigned int in_msg_dump;
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unsigned int show_region;
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unsigned int ctrl_intf;
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struct emimpu_region_t *ap_rg_info;
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struct emimpu_dbg_cb *dbg_cb_list;
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};
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#endif
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#ifdef CONFIG_MEDIATEK_EMI
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struct emimpu_dev_t {
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unsigned int region_cnt;
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unsigned int domain_cnt;
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unsigned int addr_align;
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unsigned long long dram_start;
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unsigned long long dram_end;
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unsigned int dump_cnt;
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unsigned int clear_reg_cnt;
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unsigned int clear_md_reg_cnt;
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unsigned int emi_cen_cnt;
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struct reg_info_t *dump_reg;
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struct reg_info_t *clear_reg;
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struct reg_info_t *clear_md_reg;
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void __iomem **emi_cen_base;
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void __iomem **emi_mpu_base;
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unsigned int show_region;
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unsigned int ctrl_intf;
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struct emimpu_region_t *ap_rg_info;
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};
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#endif
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struct emiisu_dev_t {
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unsigned int buf_size;
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void __iomem *buf_addr;
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void __iomem *ver_addr;
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void __iomem *con_addr;
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struct dentry *dump_dir;
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struct dentry *dump_buf;
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unsigned int ctrl_intf;
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};
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struct emimpu_region_t {
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unsigned long long start;
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unsigned long long end;
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unsigned int rg_num;
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bool lock;
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unsigned int *apc;
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};
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/* mtk emicen api */
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unsigned int mtk_emicen_get_ch_cnt(void);
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unsigned int mtk_emicen_get_rk_cnt(void);
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unsigned int mtk_emicen_get_rk_size(unsigned int rk_id);
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#ifdef CONFIG_MEDIATEK_EMI
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int mtk_emicen_addr2dram(unsigned long addr, struct emi_addr_map *map);
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#endif
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/* mtk emidbg api */
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void mtk_emidbg_dump(void);
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/* mtk emimpu api */
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int mtk_emimpu_init_region(
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struct emimpu_region_t *rg_info, unsigned int rg_num);
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int mtk_emimpu_set_addr(struct emimpu_region_t *rg_info,
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unsigned long long start, unsigned long long end);
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int mtk_emimpu_set_apc(struct emimpu_region_t *rg_info,
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unsigned int d_num, unsigned int apc);
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int mtk_emimpu_lock_region(struct emimpu_region_t *rg_info, bool lock);
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int mtk_emimpu_set_protection(struct emimpu_region_t *rg_info);
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int mtk_emimpu_free_region(struct emimpu_region_t *rg_info);
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int mtk_emimpu_clear_protection(struct emimpu_region_t *rg_info);
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int mtk_emimpu_prehandle_register(irqreturn_t (*bypass_func)
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(unsigned int emi_id, struct reg_info_t *dump, unsigned int leng));
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int mtk_emimpu_postclear_register(void (*clear_func)
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(unsigned int emi_id));
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#ifdef CONFIG_MTK_EMI
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int mtk_emimpu_debugdump_register(void (*debug_func)(void));
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#endif
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int mtk_emimpu_md_handling_register(void (*md_handling_func)
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(unsigned int emi_id, struct reg_info_t *dump, unsigned int leng));
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void mtk_clear_md_violation(void);
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int mtk_emimpu_register_callback(irqreturn_t (*debug_dump)
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(unsigned int emi_id, struct reg_info_t *dump, unsigned int len));
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#endif /* __EMI_H__ */
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