linux/arch/riscv/include/asm/xip_fixup.h
Palmer Dabbelt e7681beba9
RISC-V: Split out the XIP fixups into their own file
This was broken by the original refactoring (as the XIP definitions
depend on <asm/pgtable.h>) and then more broken by the merge (as I
accidentally took the old version).  This fixes both breakages, while
also pulling this out of <asm/asm.h> to avoid polluting most assembly
files with the XIP fixups.

Fixes: bee7fbc38579 ("RISC-V CPU Idle Support")
Fixes: 63b13e64a829 ("RISC-V: Add arch functions for non-retentive suspend entry/exit")
Link: https://lore.kernel.org/r/20220420184056.7886-4-palmer@rivosinc.com
Reviewed-by: Guo Ren <guoren@kernel.org>
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2022-05-25 14:43:33 -07:00

32 lines
685 B
C

/* 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