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33 lines
802 B
C
33 lines
802 B
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2016 MediaTek Inc.
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*/
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#include <linux/bug.h>
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#include <linux/compiler.h>
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#include <linux/mm.h>
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#include <linux/module.h>
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#include <linux/ptrace.h>
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#include <mt-plat/mrdump.h>
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#include "mrdump_private.h"
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uint64_t mrdump_get_mpt(void)
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{
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u32 ttbr0;
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asm volatile ("mrc p15, 0, %0, c2, c0, 1\n\t"
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:"=r"(ttbr0) : : "memory");
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return ttbr0;
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}
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void mrdump_save_control_register(void *creg)
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{
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struct arm32_ctrl_regs *cregs = (struct arm32_ctrl_regs *)creg;
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asm volatile ("mrc p15, 0, %0, c1, c0, 0\n\t"
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"mrc p15, 0, %1, c2, c0, 2\n\t"
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"mrc p15, 0, %2, c2, c0, 0\n\t"
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"mrc p15, 0, %3, c2, c0, 1\n\t"
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: "=r"(cregs->sctlr), "=r"(cregs->ttbcr),
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"=r"(cregs->ttbr0), "=r"(cregs->ttbr1) : : "memory");
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}
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