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https://github.com/ARM-software/arm-trusted-firmware.git
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fc77c69a17
- Update SVP EMI-MPU region ID from 4 to 5 for resolving the issue of duplicate region ID used by the DSP. - For SVP EMI-MPU region, modify domain 1 and domain 6 APC from FORBIDDEN to SEC_RW. - Correct the calculation for the end address of SVP DRAM region. - Add region 0 and region 1 for BL31 and BL32 memory protection. - Add clear region protection API for SVP region. Change-Id: Iaea348ad9be629e8a81cf579b148c6df66015b42 Signed-off-by: Haohao Sun <haohao.sun@mediatek.corp-partner.google.com>
75 lines
2.3 KiB
C
75 lines
2.3 KiB
C
/*
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* Copyright (c) 2022-2023, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef EMI_MPU_H
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#define EMI_MPU_H
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#include <emi_mpu_priv.h>
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#include <platform_def.h>
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#define NO_PROTECTION (0)
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#define SEC_RW (1)
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#define SEC_RW_NSEC_R (2)
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#define SEC_RW_NSEC_W (3)
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#define SEC_R_NSEC_R (4)
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#define FORBIDDEN (5)
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#define SEC_R_NSEC_RW (6)
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#define LOCK (1UL)
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#define UNLOCK (0)
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#if (EMI_MPU_DGROUP_NUM == 1)
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#define SET_ACCESS_PERMISSION(apc_ary, lock, d7, d6, d5, d4, d3, d2, d1, d0) \
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do { \
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apc_ary[1] = 0; \
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apc_ary[0] = \
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(((unsigned int) d7) << 21) | (((unsigned int) d6) << 18) | \
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(((unsigned int) d5) << 15) | (((unsigned int) d4) << 12) | \
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(((unsigned int) d3) << 9) | (((unsigned int) d2) << 6) | \
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(((unsigned int) d1) << 3) | ((unsigned int) d0) | \
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((unsigned int) lock << 31); \
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} while (0)
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#elif (EMI_MPU_DGROUP_NUM == 2)
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#define SET_ACCESS_PERMISSION(apc_ary, lock, d15, d14, d13, d12, d11, d10, \
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d9, d8, d7, d6, d5, d4, d3, d2, d1, d0) \
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do { \
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apc_ary[1] = \
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(((unsigned int) d15) << 21) | (((unsigned int) d14) << 18) | \
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(((unsigned int) d13) << 15) | (((unsigned int) d12) << 12) | \
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(((unsigned int) d11) << 9) | (((unsigned int) d10) << 6) | \
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(((unsigned int) d9) << 3) | ((unsigned int) d8); \
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apc_ary[0] = \
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(((unsigned int) d7) << 21) | (((unsigned int) d6) << 18) | \
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(((unsigned int) d5) << 15) | (((unsigned int) d4) << 12) | \
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(((unsigned int) d3) << 9) | (((unsigned int) d2) << 6) | \
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(((unsigned int) d1) << 3) | ((unsigned int) d0) | \
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((unsigned int) lock << 31); \
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} while (0)
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#endif
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struct emi_region_info_t {
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unsigned long long start;
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unsigned long long end;
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unsigned int region;
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unsigned int apc[EMI_MPU_DGROUP_NUM];
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};
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enum MPU_REQ_ORIGIN_ZONE_ID {
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MPU_REQ_ORIGIN_TEE_ZONE_SVP = 0,
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MPU_REQ_ORIGIN_TEE_ZONE_TUI = 1,
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MPU_REQ_ORIGIN_TEE_ZONE_WFD = 2,
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MPU_REQ_ORIGIN_TEE_ZONE_MAX = 3,
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MPU_REQ_ORIGIN_ZONE_INVALID = 0x7FFFFFFF,
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};
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int emi_mpu_init(void);
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int emi_mpu_optee_handler(uint64_t encoded_addr, uint64_t zone_size,
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uint64_t zone_info);
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int emi_mpu_set_protection(struct emi_region_info_t *region_info);
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int emi_mpu_clear_protection(unsigned int region);
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void set_emi_mpu_regions(void);
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int set_apu_emi_mpu_region(void);
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#endif
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