linux-zen-server/arch/riscv/include/asm/xip_fixup.h

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2023-08-30 17:53:23 +02:00
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* XIP fixup macros, only useful in assembly.
*/
#ifndef _ASM_RISCV_XIP_FIXUP_H
#define _ASM_RISCV_XIP_FIXUP_H
#include <linux/pgtable.h>
#ifdef CONFIG_XIP_KERNEL
.macro XIP_FIXUP_OFFSET reg
REG_L t0, _xip_fixup
add \reg, \reg, t0
.endm
.macro XIP_FIXUP_FLASH_OFFSET reg
la t1, __data_loc
REG_L t1, _xip_phys_offset
sub \reg, \reg, t1
add \reg, \reg, t0
.endm
_xip_fixup: .dword CONFIG_PHYS_RAM_BASE - CONFIG_XIP_PHYS_ADDR - XIP_OFFSET
_xip_phys_offset: .dword CONFIG_XIP_PHYS_ADDR + XIP_OFFSET
#else
.macro XIP_FIXUP_OFFSET reg
.endm
.macro XIP_FIXUP_FLASH_OFFSET reg
.endm
#endif /* CONFIG_XIP_KERNEL */
#endif