linux/arch/microblaze/include/asm/registers.h
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   1/* SPDX-License-Identifier: GPL-2.0 */
   2/*
   3 * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
   4 * Copyright (C) 2008-2009 PetaLogix
   5 * Copyright (C) 2006 Atmark Techno, Inc.
   6 */
   7
   8#ifndef _ASM_MICROBLAZE_REGISTERS_H
   9#define _ASM_MICROBLAZE_REGISTERS_H
  10
  11#define MSR_BE  (1<<0) /* 0x001 */
  12#define MSR_IE  (1<<1) /* 0x002 */
  13#define MSR_C   (1<<2) /* 0x004 */
  14#define MSR_BIP (1<<3) /* 0x008 */
  15#define MSR_FSL (1<<4) /* 0x010 */
  16#define MSR_ICE (1<<5) /* 0x020 */
  17#define MSR_DZ  (1<<6) /* 0x040 */
  18#define MSR_DCE (1<<7) /* 0x080 */
  19#define MSR_EE  (1<<8) /* 0x100 */
  20#define MSR_EIP (1<<9) /* 0x200 */
  21#define MSR_CC  (1<<31)
  22
  23/* Floating Point Status Register (FSR) Bits */
  24#define FSR_IO          (1<<4) /* Invalid operation */
  25#define FSR_DZ          (1<<3) /* Divide-by-zero */
  26#define FSR_OF          (1<<2) /* Overflow */
  27#define FSR_UF          (1<<1) /* Underflow */
  28#define FSR_DO          (1<<0) /* Denormalized operand error */
  29
  30# ifdef CONFIG_MMU
  31/* Machine State Register (MSR) Fields */
  32# define MSR_UM         (1<<11) /* User Mode */
  33# define MSR_UMS        (1<<12) /* User Mode Save */
  34# define MSR_VM         (1<<13) /* Virtual Mode */
  35# define MSR_VMS        (1<<14) /* Virtual Mode Save */
  36
  37# define MSR_KERNEL     (MSR_EE | MSR_VM)
  38/* # define MSR_USER    (MSR_KERNEL | MSR_UM | MSR_IE) */
  39# define MSR_KERNEL_VMS (MSR_EE | MSR_VMS)
  40/* # define MSR_USER_VMS        (MSR_KERNEL_VMS | MSR_UMS | MSR_IE) */
  41
  42/* Exception State Register (ESR) Fields */
  43# define          ESR_DIZ       (1<<11) /* Zone Protection */
  44# define          ESR_S         (1<<10) /* Store instruction */
  45
  46# endif /* CONFIG_MMU */
  47#endif /* _ASM_MICROBLAZE_REGISTERS_H */
  48