xref: /linux/arch/microblaze/include/asm/registers.h (revision cdd38c5f1ce4398ec58fec95904b75824daab7b5)
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 /* Machine State Register (MSR) Fields */
31 # define MSR_UM		(1<<11) /* User Mode */
32 # define MSR_UMS	(1<<12) /* User Mode Save */
33 # define MSR_VM		(1<<13) /* Virtual Mode */
34 # define MSR_VMS	(1<<14) /* Virtual Mode Save */
35 
36 # define MSR_KERNEL	(MSR_EE | MSR_VM)
37 /* # define MSR_USER	(MSR_KERNEL | MSR_UM | MSR_IE) */
38 # define MSR_KERNEL_VMS	(MSR_EE | MSR_VMS)
39 /* # define MSR_USER_VMS	(MSR_KERNEL_VMS | MSR_UMS | MSR_IE) */
40 
41 /* Exception State Register (ESR) Fields */
42 # define	  ESR_DIZ	(1<<11) /* Zone Protection */
43 # define	  ESR_S		(1<<10) /* Store instruction */
44 
45 #endif /* _ASM_MICROBLAZE_REGISTERS_H */
46