threeeye
bc1d038eac
Squashed backup commit (no shallow-clone history issues) of xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream commit 9eece662e) plus all fixes applied to get everpal_defconfig building clean against a modern (GCC 15.2.0) toolchain -- see the previous commit message on the lineage-23.2 branch (also in this repo history is not available here since this is a squashed snapshot; full incremental history lives in the local DL380 checkout and the upstream GitHub remote). Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
65 lines
1.7 KiB
C
65 lines
1.7 KiB
C
/*
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* Copyright (C) 2016 MediaTek Inc.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef __MTK_LPAE_H__
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#define __MTK_LPAE_H__
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#ifdef CONFIG_MTK_LM_MODE
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#include <mt-plat/mtk_io.h>
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#define INTERAL_MAPPING_OFFSET (0x40000000)
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#define INTERAL_MAPPING_LIMIT (INTERAL_MAPPING_OFFSET + 0x80000000)
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#define MT_OVERFLOW_ADDR_START 0x100000000ULL
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unsigned int __attribute__((weak)) enable_4G(void)
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{
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return 0;
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}
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/* For HW modules which support 33-bit address setting */
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#define CROSS_OVERFLOW_ADDR_TRANSFER(phy_addr, size, ret) \
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do { \
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ret = 0; \
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if (enable_4G()) {\
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if (((phys_addr_t)phy_addr < MT_OVERFLOW_ADDR_START)\
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&& (((phys_addr_t)phy_addr + size) >= \
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MT_OVERFLOW_ADDR_START)) \
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ret = MT_OVERFLOW_ADDR_START - phy_addr; \
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} \
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} while (0) \
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/* For SPM and MD32 only in ROME */
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#define MAPPING_DRAM_ACCESS_ADDR(phy_addr) \
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do { \
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if (enable_4G()) {\
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if (phy_addr >= INTERAL_MAPPING_OFFSET \
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&& phy_addr < INTERAL_MAPPING_LIMIT) \
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phy_addr += INTERAL_MAPPING_OFFSET; \
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} \
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} while (0)\
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#else /* !CONFIG_ARM_LPAE */
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#define CROSS_OVERFLOW_ADDR_TRANSFER(phy_addr, size, ret)
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#define MAPPING_DRAM_ACCESS_ADDR(phy_addr)
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#define MT_OVERFLOW_ADDR_START 0
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static inline unsigned int enable_4G(void)
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{
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return 0;
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}
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#endif
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#endif /*!__MTK_LPAE_H__ */
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