mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-11 13:04:03 +08:00
a4c3733d32
Many of the privileged CSRs exist in a supervisor and machine version that are used very similarly. Provide versions of the CSR names and fields that map to either the S-mode or M-mode variant depending on a new CONFIG_RISCV_M_MODE kconfig symbol. Contains contributions from Damien Le Moal <Damien.LeMoal@wdc.com> and Paul Walmsley <paul.walmsley@sifive.com>. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> # for drivers/clocksource, drivers/irqchip [paul.walmsley@sifive.com: updated to apply] Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
25 lines
539 B
C
25 lines
539 B
C
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
/*
|
|
* Copyright (C) 2009 Sunplus Core Technology Co., Ltd.
|
|
* Lennox Wu <lennox.wu@sunplusct.com>
|
|
* Chen Liqin <liqin.chen@sunplusct.com>
|
|
* Copyright (C) 2013 Regents of the University of California
|
|
*/
|
|
|
|
|
|
#include <linux/extable.h>
|
|
#include <linux/module.h>
|
|
#include <linux/uaccess.h>
|
|
|
|
int fixup_exception(struct pt_regs *regs)
|
|
{
|
|
const struct exception_table_entry *fixup;
|
|
|
|
fixup = search_exception_tables(regs->epc);
|
|
if (fixup) {
|
|
regs->epc = fixup->fixup;
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|