WebSVN – HelenOS-historic – Diff – /uspace/trunk/libc/arch/ia64/include/psthread.h


/*
 * Copyright (C) 2005 Jakub Jermar
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
/** @addtogroup libcia64   
 * @{
 */
/** @file
 */
 
#ifndef LIBC_ia64_PSTHREAD_H_
#define LIBC_ia64_PSTHREAD_H_
 
#include <types.h>
#include <align.h>
#include <libarch/stack.h>
#include <libarch/types.h>
 
/*
 * context_save() and context_restore() are both leaf procedures.
 * No need to allocate scratch area.
 */
#define SP_DELTA    (0+ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT))
 
#define PFM_MASK        (~0x3fffffffff)
 
#define PSTHREAD_INITIAL_STACK_PAGES_NO 2
/* Stack is divided into two equal parts (for memory stack and register stack). */
#define PSTHREAD_INITIAL_STACK_DIVISION 2  
 
#ifdef context_set
#undef context_set
#endif
 
#define context_set(c, _pc, stack, size, tls)                               \
    do {                                                \
        (c)->pc = (uint64_t) _pc;                               \
        (c)->bsp = ((uint64_t) stack) + size / PSTHREAD_INITIAL_STACK_DIVISION;                             \
        (c)->ar_pfs &= PFM_MASK;                                \
        (c)->sp = ((uint64_t) stack) + ALIGN_UP((size / PSTHREAD_INITIAL_STACK_DIVISION), STACK_ALIGNMENT) - SP_DELTA;      \
        (c)->tp = (uint64_t) tls;                               \
    } while (0);
   
 
/*
 * Only save registers that must be preserved across
 * function calls.
 */
typedef struct context {
 
    /*
     * Application registers
     */
    uint64_t ar_pfs;
    uint64_t ar_unat_caller;
    uint64_t ar_unat_callee;
    uint64_t ar_rsc;
    uint64_t bsp;       /* ar_bsp */
    uint64_t ar_rnat;
    uint64_t ar_lc;
 
    /*
     * General registers
     */
    uint64_t r1;
    uint64_t r4;
    uint64_t r5;
    uint64_t r6;
    uint64_t r7;
    uint64_t sp;        /* r12 */
    uint64_t tp;        /* r13 */
   
    /*
     * Branch registers
     */
    uint64_t pc;        /* b0 */
    uint64_t b1;
    uint64_t b2;
    uint64_t b3;
    uint64_t b4;
    uint64_t b5;
 
    /*
     * Predicate registers
     */
    uint64_t pr;
 
    __r128 f2 __attribute__ ((aligned(16)));
    __r128 f3;
    __r128 f4;
    __r128 f5;
 
    __r128 f16;
    __r128 f17;
    __r128 f18;
    __r128 f19;
    __r128 f20;
    __r128 f21;
    __r128 f22;
    __r128 f23;
    __r128 f24;
    __r128 f25;
    __r128 f26;
    __r128 f27;
    __r128 f28;
    __r128 f29;
    __r128 f30;
    __r128 f31;
 
} context_t;
 
#endif
 
 /** @}
 */
 
 

Rev 1663	Rev 1781
1	/*	1	/*
2	* Copyright (C) 2005 Jakub Jermar	2	* Copyright (C) 2005 Jakub Jermar
3	* All rights reserved.	3	* All rights reserved.
4	*	4	*
5	* Redistribution and use in source and binary forms, with or without	5	* Redistribution and use in source and binary forms, with or without
6	* modification, are permitted provided that the following conditions	6	* modification, are permitted provided that the following conditions
7	* are met:	7	* are met:
8	*	8	*
9	* - Redistributions of source code must retain the above copyright	9	* - Redistributions of source code must retain the above copyright
10	* notice, this list of conditions and the following disclaimer.	10	* notice, this list of conditions and the following disclaimer.
11	* - Redistributions in binary form must reproduce the above copyright	11	* - Redistributions in binary form must reproduce the above copyright
12	* notice, this list of conditions and the following disclaimer in the	12	* notice, this list of conditions and the following disclaimer in the
13	* documentation and/or other materials provided with the distribution.	13	* documentation and/or other materials provided with the distribution.
14	* - The name of the author may not be used to endorse or promote products	14	* - The name of the author may not be used to endorse or promote products
15	* derived from this software without specific prior written permission.	15	* derived from this software without specific prior written permission.
16	*	16	*
17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR	17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES	18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.	19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,	20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT	21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,	22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF	25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27	*/	27	*/
28		28
29	/** @addtogroup libcia64	29	/** @addtogroup libcia64
30	* @{	30	* @{
31	*/	31	*/
32	/** @file	32	/** @file
33	*/	33	*/
34		34
35	#ifndef __LIBC__ia64PSTHREAD_H__	35	#ifndef LIBC_ia64_PSTHREAD_H_
36	#define __LIBC__ia64PSTHREAD_H__	36	#define LIBC_ia64_PSTHREAD_H_
37		37
38	#include <types.h>	38	#include <types.h>
39	#include <align.h>	39	#include <align.h>
40	#include <libarch/stack.h>	40	#include <libarch/stack.h>
41	#include <arch/types.h>	41	#include <libarch/types.h>
42		42
43	/*	43	/*
44	* context_save() and context_restore() are both leaf procedures.	44	* context_save() and context_restore() are both leaf procedures.
45	* No need to allocate scratch area.	45	* No need to allocate scratch area.
46	*/	46	*/
47	#define SP_DELTA (0+ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT))	47	#define SP_DELTA (0+ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT))
48		48
49	#define PFM_MASK (~0x3fffffffff)	49	#define PFM_MASK (~0x3fffffffff)
50		50
51	#define PSTHREAD_INITIAL_STACK_PAGES_NO 2	51	#define PSTHREAD_INITIAL_STACK_PAGES_NO 2
52	/* Stack is divided into two equal parts (for memory stack and register stack). */	52	/* Stack is divided into two equal parts (for memory stack and register stack). */
53	#define PSTHREAD_INITIAL_STACK_DIVISION 2	53	#define PSTHREAD_INITIAL_STACK_DIVISION 2
54		54
55	#ifdef context_set	55	#ifdef context_set
56	#undef context_set	56	#undef context_set
57	#endif	57	#endif
58		58
59	#define context_set(c, _pc, stack, size, tls) \	59	#define context_set(c, _pc, stack, size, tls) \
60	do { \	60	do { \
61	(c)->pc = (uint64_t) _pc; \	61	(c)->pc = (uint64_t) _pc; \
62	(c)->bsp = ((uint64_t) stack) + size / PSTHREAD_INITIAL_STACK_DIVISION; \	62	(c)->bsp = ((uint64_t) stack) + size / PSTHREAD_INITIAL_STACK_DIVISION; \
63	(c)->ar_pfs &= PFM_MASK; \	63	(c)->ar_pfs &= PFM_MASK; \
64	(c)->sp = ((uint64_t) stack) + ALIGN_UP((size / PSTHREAD_INITIAL_STACK_DIVISION), STACK_ALIGNMENT) - SP_DELTA; \	64	(c)->sp = ((uint64_t) stack) + ALIGN_UP((size / PSTHREAD_INITIAL_STACK_DIVISION), STACK_ALIGNMENT) - SP_DELTA; \
65	(c)->tp = (uint64_t) tls; \	65	(c)->tp = (uint64_t) tls; \
66	} while (0);	66	} while (0);
67		67
68		68
69	/*	69	/*
70	* Only save registers that must be preserved across	70	* Only save registers that must be preserved across
71	* function calls.	71	* function calls.
72	*/	72	*/
73	typedef struct context {	73	typedef struct context {
74		74
75	/*	75	/*
76	* Application registers	76	* Application registers
77	*/	77	*/
78	uint64_t ar_pfs;	78	uint64_t ar_pfs;
79	uint64_t ar_unat_caller;	79	uint64_t ar_unat_caller;
80	uint64_t ar_unat_callee;	80	uint64_t ar_unat_callee;
81	uint64_t ar_rsc;	81	uint64_t ar_rsc;
82	uint64_t bsp; /* ar_bsp */	82	uint64_t bsp; /* ar_bsp */
83	uint64_t ar_rnat;	83	uint64_t ar_rnat;
84	uint64_t ar_lc;	84	uint64_t ar_lc;
85		85
86	/*	86	/*
87	* General registers	87	* General registers
88	*/	88	*/
89	uint64_t r1;	89	uint64_t r1;
90	uint64_t r4;	90	uint64_t r4;
91	uint64_t r5;	91	uint64_t r5;
92	uint64_t r6;	92	uint64_t r6;
93	uint64_t r7;	93	uint64_t r7;
94	uint64_t sp; /* r12 */	94	uint64_t sp; /* r12 */
95	uint64_t tp; /* r13 */	95	uint64_t tp; /* r13 */
96		96
97	/*	97	/*
98	* Branch registers	98	* Branch registers
99	*/	99	*/
100	uint64_t pc; /* b0 */	100	uint64_t pc; /* b0 */
101	uint64_t b1;	101	uint64_t b1;
102	uint64_t b2;	102	uint64_t b2;
103	uint64_t b3;	103	uint64_t b3;
104	uint64_t b4;	104	uint64_t b4;
105	uint64_t b5;	105	uint64_t b5;
106		106
107	/*	107	/*
108	* Predicate registers	108	* Predicate registers
109	*/	109	*/
110	uint64_t pr;	110	uint64_t pr;
111		111
112	__r128 f2 __attribute__ ((aligned(16)));	112	__r128 f2 __attribute__ ((aligned(16)));
113	__r128 f3;	113	__r128 f3;
114	__r128 f4;	114	__r128 f4;
115	__r128 f5;	115	__r128 f5;
116		116
117	__r128 f16;	117	__r128 f16;
118	__r128 f17;	118	__r128 f17;
119	__r128 f18;	119	__r128 f18;
120	__r128 f19;	120	__r128 f19;
121	__r128 f20;	121	__r128 f20;
122	__r128 f21;	122	__r128 f21;
123	__r128 f22;	123	__r128 f22;
124	__r128 f23;	124	__r128 f23;
125	__r128 f24;	125	__r128 f24;
126	__r128 f25;	126	__r128 f25;
127	__r128 f26;	127	__r128 f26;
128	__r128 f27;	128	__r128 f27;
129	__r128 f28;	129	__r128 f28;
130	__r128 f29;	130	__r128 f29;
131	__r128 f30;	131	__r128 f30;
132	__r128 f31;	132	__r128 f31;
133		133
134	} context_t;	134	} context_t;
135		135
136	#endif	136	#endif
137		137
138	/** @}	138	/** @}
139	*/	139	*/
140		140
141		141

Subversion Repositories HelenOS-historic

(root)/uspace/trunk/libc/arch/ia64/include/psthread.h – Rev 1663 → 1781