[people/ms/u-boot.git] / arch / avr32 / include / asm / ptrace.h

/*
 * Copyright (C) 2006 Atmel Corporation
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */
#ifndef __ASM_AVR32_PTRACE_H
#define __ASM_AVR32_PTRACE_H

/*
 * Status Register bits
 */
#define SR_H		0x40000000
#define SR_R		0x20000000
#define SR_J		0x10000000
#define SR_DM		0x08000000
#define SR_D		0x04000000
#define MODE_NMI	0x01c00000
#define MODE_EXCEPTION	0x01800000
#define MODE_INT3	0x01400000
#define MODE_INT2	0x01000000
#define MODE_INT1	0x00c00000
#define MODE_INT0	0x00800000
#define MODE_SUPERVISOR	0x00400000
#define MODE_USER	0x00000000
#define MODE_MASK	0x01c00000
#define SR_EM		0x00200000
#define SR_I3M		0x00100000
#define SR_I2M		0x00080000
#define SR_I1M		0x00040000
#define SR_I0M		0x00020000
#define SR_GM		0x00010000

#define MODE_SHIFT	22
#define SR_EM_BIT	21
#define SR_I3M_BIT	20
#define SR_I2M_BIT	19
#define SR_I1M_BIT	18
#define SR_I0M_BIT	17
#define SR_GM_BIT	16

/* The user-visible part */
#define SR_Q		0x00000010
#define SR_V		0x00000008
#define SR_N		0x00000004
#define SR_Z		0x00000002
#define SR_C		0x00000001

/*
 * The order is defined by the stdsp instruction. r0 is stored first, so it
 * gets the highest address.
 *
 * Registers 0-12 are general-purpose registers (r12 is normally used for
 * the function return value).
 * Register 13 is the stack pointer
 * Register 14 is the link register
 * Register 15 is the program counter
 */
#define FRAME_SIZE_FULL 72
#define REG_R12_ORIG	68
#define REG_R0		64
#define REG_R1		60
#define REG_R2		56
#define REG_R3		52
#define REG_R4		48
#define REG_R5		44
#define REG_R6		40
#define REG_R7		36
#define REG_R8		32
#define REG_R9		28
#define REG_R10		34
#define REG_R11		20
#define REG_R12		16
#define REG_SP		12
#define REG_LR		 8

#define FRAME_SIZE_MIN	 8
#define REG_PC		 4
#define REG_SR		 0

#ifndef __ASSEMBLY__
struct pt_regs {
	/* These are always saved */
	unsigned long sr;
	unsigned long pc;

	/* These are sometimes saved */
	unsigned long lr;
	unsigned long sp;
	unsigned long r12;
	unsigned long r11;
	unsigned long r10;
	unsigned long r9;
	unsigned long r8;
	unsigned long r7;
	unsigned long r6;
	unsigned long r5;
	unsigned long r4;
	unsigned long r3;
	unsigned long r2;
	unsigned long r1;
	unsigned long r0;

	/* Only saved on system call */
	unsigned long r12_orig;
};

#ifdef __KERNEL__
# define user_mode(regs) (((regs)->sr & MODE_MASK) == MODE_USER)
# define instruction_pointer(regs) ((regs)->pc)
extern void show_regs (struct pt_regs *);

static __inline__ int valid_user_regs(struct pt_regs *regs)
{
	/*
	 * Some of the Java bits might be acceptable if/when we
	 * implement some support for that stuff...
	 */
	if ((regs->sr & 0xffff0000) == 0)
		return 1;

	/*
	 * Force status register flags to be sane and report this
	 * illegal behaviour...
	 */
	regs->sr &= 0x0000ffff;
	return 0;
}
#endif

#endif /* ! __ASSEMBLY__ */

#endif /* __ASM_AVR32_PTRACE_H */
Commit	Line	Data
7b64fef3 WD	1	/*
	2	* Copyright (C) 2006 Atmel Corporation
	3	*
1a459660	4	* SPDX-License-Identifier: GPL-2.0+
7b64fef3 WD	5	*/
	6	#ifndef __ASM_AVR32_PTRACE_H
	7	#define __ASM_AVR32_PTRACE_H
	8
	9	/*
	10	* Status Register bits
	11	*/
	12	#define SR_H 0x40000000
	13	#define SR_R 0x20000000
	14	#define SR_J 0x10000000
	15	#define SR_DM 0x08000000
	16	#define SR_D 0x04000000
	17	#define MODE_NMI 0x01c00000
	18	#define MODE_EXCEPTION 0x01800000
	19	#define MODE_INT3 0x01400000
	20	#define MODE_INT2 0x01000000
	21	#define MODE_INT1 0x00c00000
	22	#define MODE_INT0 0x00800000
	23	#define MODE_SUPERVISOR 0x00400000
	24	#define MODE_USER 0x00000000
	25	#define MODE_MASK 0x01c00000
	26	#define SR_EM 0x00200000
	27	#define SR_I3M 0x00100000
	28	#define SR_I2M 0x00080000
	29	#define SR_I1M 0x00040000
	30	#define SR_I0M 0x00020000
	31	#define SR_GM 0x00010000
	32
	33	#define MODE_SHIFT 22
	34	#define SR_EM_BIT 21
	35	#define SR_I3M_BIT 20
	36	#define SR_I2M_BIT 19
	37	#define SR_I1M_BIT 18
	38	#define SR_I0M_BIT 17
	39	#define SR_GM_BIT 16
	40
	41	/* The user-visible part */
	42	#define SR_Q 0x00000010
	43	#define SR_V 0x00000008
	44	#define SR_N 0x00000004
	45	#define SR_Z 0x00000002
	46	#define SR_C 0x00000001
	47
	48	/*
	49	* The order is defined by the stdsp instruction. r0 is stored first, so it
	50	* gets the highest address.
	51	*
	52	* Registers 0-12 are general-purpose registers (r12 is normally used for
	53	* the function return value).
	54	* Register 13 is the stack pointer
	55	* Register 14 is the link register
	56	* Register 15 is the program counter
	57	*/
	58	#define FRAME_SIZE_FULL 72
	59	#define REG_R12_ORIG 68
	60	#define REG_R0 64
	61	#define REG_R1 60
	62	#define REG_R2 56
	63	#define REG_R3 52
	64	#define REG_R4 48
	65	#define REG_R5 44
	66	#define REG_R6 40
	67	#define REG_R7 36
	68	#define REG_R8 32
69	#define REG_R9 28
70	#define REG_R10 34
71	#define REG_R11 20
72	#define REG_R12 16
73	#define REG_SP 12
74	#define REG_LR 8
75
76	#define FRAME_SIZE_MIN 8
77	#define REG_PC 4
78	#define REG_SR 0
79
80	#ifndef __ASSEMBLY__
81	struct pt_regs {
82	/* These are always saved */
83	unsigned long sr;
84	unsigned long pc;
85
86	/* These are sometimes saved */
87	unsigned long lr;
88	unsigned long sp;
89	unsigned long r12;
90	unsigned long r11;
91	unsigned long r10;
92	unsigned long r9;
93	unsigned long r8;
94	unsigned long r7;
95	unsigned long r6;
96	unsigned long r5;
97	unsigned long r4;
98	unsigned long r3;
99	unsigned long r2;
100	unsigned long r1;
101	unsigned long r0;
102
103	/* Only saved on system call */
104	unsigned long r12_orig;
105	};
106
107	#ifdef __KERNEL__
108	# define user_mode(regs) (((regs)->sr & MODE_MASK) == MODE_USER)
109	# define instruction_pointer(regs) ((regs)->pc)
110	extern void show_regs (struct pt_regs *);
111
112	static __inline__ int valid_user_regs(struct pt_regs *regs)
113	{
114	/*
115	* Some of the Java bits might be acceptable if/when we
116	* implement some support for that stuff...
117	*/
118	if ((regs->sr & 0xffff0000) == 0)
119	return 1;
120
121	/*
122	* Force status register flags to be sane and report this
123	* illegal behaviour...
124	*/
125	regs->sr &= 0x0000ffff;
126	return 0;
127	}
128	#endif
129
130	#endif /* ! __ASSEMBLY__ */
131
132	#endif /* __ASM_AVR32_PTRACE_H */