mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-27 00:30:57 +07:00
b8b572e101
from include/asm-powerpc. This is the result of a mkdir arch/powerpc/include/asm git mv include/asm-powerpc/* arch/powerpc/include/asm Followed by a few documentation/comment fixups and a couple of places where <asm-powepc/...> was being used explicitly. Of the latter only one was outside the arch code and it is a driver only built for powerpc. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
28 lines
1.1 KiB
C
28 lines
1.1 KiB
C
/*
|
|
* Copyright (C) 2004 Paul Mackerras <paulus@au.ibm.com>, IBM
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* as published by the Free Software Foundation; either version
|
|
* 2 of the License, or (at your option) any later version.
|
|
*/
|
|
|
|
struct pt_regs;
|
|
|
|
/*
|
|
* We don't allow single-stepping an mtmsrd that would clear
|
|
* MSR_RI, since that would make the exception unrecoverable.
|
|
* Since we need to single-step to proceed from a breakpoint,
|
|
* we don't allow putting a breakpoint on an mtmsrd instruction.
|
|
* Similarly we don't allow breakpoints on rfid instructions.
|
|
* These macros tell us if an instruction is a mtmsrd or rfid.
|
|
* Note that IS_MTMSRD returns true for both an mtmsr (32-bit)
|
|
* and an mtmsrd (64-bit).
|
|
*/
|
|
#define IS_MTMSRD(instr) (((instr) & 0xfc0007be) == 0x7c000124)
|
|
#define IS_RFID(instr) (((instr) & 0xfc0007fe) == 0x4c000024)
|
|
#define IS_RFI(instr) (((instr) & 0xfc0007fe) == 0x4c000064)
|
|
|
|
/* Emulate instructions that cause a transfer of control. */
|
|
extern int emulate_step(struct pt_regs *regs, unsigned int instr);
|