arch/microblaze/include/asm/registers.h

   1 /*
   2  * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
   3  * Copyright (C) 2008-2009 PetaLogix
   4  * Copyright (C) 2006 Atmark Techno, Inc.
   5  *
   6  * This file is subject to the terms and conditions of the GNU General Public
   7  * License. See the file "COPYING" in the main directory of this archive
   8  * for more details.
   9  */
  10
  11 #ifndef _ASM_MICROBLAZE_REGISTERS_H
  12 #define _ASM_MICROBLAZE_REGISTERS_H
  13
  14 #define MSR_BE  (1<<0) /* 0x001 */
  15 #define MSR_IE  (1<<1) /* 0x002 */
  16 #define MSR_C   (1<<2) /* 0x004 */
  17 #define MSR_BIP (1<<3) /* 0x008 */
  18 #define MSR_FSL (1<<4) /* 0x010 */
  19 #define MSR_ICE (1<<5) /* 0x020 */
  20 #define MSR_DZ  (1<<6) /* 0x040 */
  21 #define MSR_DCE (1<<7) /* 0x080 */
  22 #define MSR_EE  (1<<8) /* 0x100 */
  23 #define MSR_EIP (1<<9) /* 0x200 */
  24 #define MSR_CC  (1<<31)
  25
  26 /* Floating Point Status Register (FSR) Bits */
  27 #define FSR_IO          (1<<4) /* Invalid operation */
  28 #define FSR_DZ          (1<<3) /* Divide-by-zero */
  29 #define FSR_OF          (1<<2) /* Overflow */
  30 #define FSR_UF          (1<<1) /* Underflow */
  31 #define FSR_DO          (1<<0) /* Denormalized operand error */
  32
  33 # ifdef CONFIG_MMU
  34 /* Machine State Register (MSR) Fields */
  35 # define MSR_UM         (1<<11) /* User Mode */
  36 # define MSR_UMS        (1<<12) /* User Mode Save */
  37 # define MSR_VM         (1<<13) /* Virtual Mode */
  38 # define MSR_VMS        (1<<14) /* Virtual Mode Save */
  39
  40 # define MSR_KERNEL     (MSR_EE | MSR_VM)
  41 /* # define MSR_USER    (MSR_KERNEL | MSR_UM | MSR_IE) */
  42 # define MSR_KERNEL_VMS (MSR_EE | MSR_VMS)
  43 /* # define MSR_USER_VMS        (MSR_KERNEL_VMS | MSR_UMS | MSR_IE) */
  44
  45 /* Exception State Register (ESR) Fields */
  46 # define          ESR_DIZ       (1<<11) /* Zone Protection */
  47 # define          ESR_S         (1<<10) /* Store instruction */
  48
  49 # endif /* CONFIG_MMU */
  50 #endif /* _ASM_MICROBLAZE_REGISTERS_H */