1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Definitions used by low-level trap handlers 4 * 5 * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu> 6 * Copyright (C) 2007-2009 PetaLogix 7 * Copyright (C) 2007 John Williams <john.williams@petalogix.com> 8 */ 9 10 #ifndef _ASM_MICROBLAZE_ENTRY_H 11 #define _ASM_MICROBLAZE_ENTRY_H 12 13 #include <asm/percpu.h> 14 #include <asm/ptrace.h> 15 #include <linux/linkage.h> 16 17 /* 18 * These are per-cpu variables required in entry.S, among other 19 * places 20 */ 21 22 #define PER_CPU(var) var 23 24 # ifndef __ASSEMBLY__ 25 DECLARE_PER_CPU(unsigned int, KSP); /* Saved kernel stack pointer */ 26 DECLARE_PER_CPU(unsigned int, KM); /* Kernel/user mode */ 27 DECLARE_PER_CPU(unsigned int, ENTRY_SP); /* Saved SP on kernel entry */ 28 DECLARE_PER_CPU(unsigned int, R11_SAVE); /* Temp variable for entry */ 29 DECLARE_PER_CPU(unsigned int, CURRENT_SAVE); /* Saved current pointer */ 30 31 extern asmlinkage void do_notify_resume(struct pt_regs *regs, int in_syscall); 32 # endif /* __ASSEMBLY__ */ 33 34 #endif /* _ASM_MICROBLAZE_ENTRY_H */ 35