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__ia64PSTHREAD_H__
#define __LIBC__ia64PSTHREAD_H__
 
#include <types.h>
#include <align.h>
#include <libarch/stack.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;
} context_t;
 
#endif
 
 /** @}
 */
 
 

Rev 1175	Rev 1656
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
-		30	* @{
-		31	*/
-		32	/** @file
-		33	*/
-		34
29	#ifndef __LIBC__ia64PSTHREAD_H__	35	#ifndef __LIBC__ia64PSTHREAD_H__
30	#define __LIBC__ia64PSTHREAD_H__	36	#define __LIBC__ia64PSTHREAD_H__
31		37
32	#include <types.h>	38	#include <types.h>
33	#include <align.h>	39	#include <align.h>
34	#include <libarch/stack.h>	40	#include <libarch/stack.h>
35		41
36	/*	42	/*
37	* context_save() and context_restore() are both leaf procedures.	43	* context_save() and context_restore() are both leaf procedures.
38	* No need to allocate scratch area.	44	* No need to allocate scratch area.
39	*/	45	*/
40	#define SP_DELTA (0+ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT))	46	#define SP_DELTA (0+ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT))
41		47
42	#define PFM_MASK (~0x3fffffffff)	48	#define PFM_MASK (~0x3fffffffff)
43		49
44	#define PSTHREAD_INITIAL_STACK_PAGES_NO 2	50	#define PSTHREAD_INITIAL_STACK_PAGES_NO 2
45	/* Stack is divided into two equal parts (for memory stack and register stack). */	51	/* Stack is divided into two equal parts (for memory stack and register stack). */
46	#define PSTHREAD_INITIAL_STACK_DIVISION 2	52	#define PSTHREAD_INITIAL_STACK_DIVISION 2
47		53
48	#ifdef context_set	54	#ifdef context_set
49	#undef context_set	55	#undef context_set
50	#endif	56	#endif
51		57
52	#define context_set(c, _pc, stack, size, tls) \	58	#define context_set(c, _pc, stack, size, tls) \
53	do { \	59	do { \
54	(c)->pc = (uint64_t) _pc; \	60	(c)->pc = (uint64_t) _pc; \
55	(c)->bsp = ((uint64_t) stack) + size / PSTHREAD_INITIAL_STACK_DIVISION; \	61	(c)->bsp = ((uint64_t) stack) + size / PSTHREAD_INITIAL_STACK_DIVISION; \
56	(c)->ar_pfs &= PFM_MASK; \	62	(c)->ar_pfs &= PFM_MASK; \
57	(c)->sp = ((uint64_t) stack) + ALIGN_UP((size / PSTHREAD_INITIAL_STACK_DIVISION), STACK_ALIGNMENT) - SP_DELTA; \	63	(c)->sp = ((uint64_t) stack) + ALIGN_UP((size / PSTHREAD_INITIAL_STACK_DIVISION), STACK_ALIGNMENT) - SP_DELTA; \
58	(c)->tp = (uint64_t) tls; \	64	(c)->tp = (uint64_t) tls; \
59	} while (0);	65	} while (0);
60		66
61		67
62	/*	68	/*
63	* Only save registers that must be preserved across	69	* Only save registers that must be preserved across
64	* function calls.	70	* function calls.
65	*/	71	*/
66	typedef struct context {	72	typedef struct context {
67		73
68	/*	74	/*
69	* Application registers	75	* Application registers
70	*/	76	*/
71	uint64_t ar_pfs;	77	uint64_t ar_pfs;
72	uint64_t ar_unat_caller;	78	uint64_t ar_unat_caller;
73	uint64_t ar_unat_callee;	79	uint64_t ar_unat_callee;
74	uint64_t ar_rsc;	80	uint64_t ar_rsc;
75	uint64_t bsp; /* ar_bsp */	81	uint64_t bsp; /* ar_bsp */
76	uint64_t ar_rnat;	82	uint64_t ar_rnat;
77	uint64_t ar_lc;	83	uint64_t ar_lc;
78		84
79	/*	85	/*
80	* General registers	86	* General registers
81	*/	87	*/
82	uint64_t r1;	88	uint64_t r1;
83	uint64_t r4;	89	uint64_t r4;
84	uint64_t r5;	90	uint64_t r5;
85	uint64_t r6;	91	uint64_t r6;
86	uint64_t r7;	92	uint64_t r7;
87	uint64_t sp; /* r12 */	93	uint64_t sp; /* r12 */
88	uint64_t tp; /* r13 */	94	uint64_t tp; /* r13 */
89		95
90	/*	96	/*
91	* Branch registers	97	* Branch registers
92	*/	98	*/
93	uint64_t pc; /* b0 */	99	uint64_t pc; /* b0 */
94	uint64_t b1;	100	uint64_t b1;
95	uint64_t b2;	101	uint64_t b2;
96	uint64_t b3;	102	uint64_t b3;
97	uint64_t b4;	103	uint64_t b4;
98	uint64_t b5;	104	uint64_t b5;
99		105
100	/*	106	/*
101	* Predicate registers	107	* Predicate registers
102	*/	108	*/
103	uint64_t pr;	109	uint64_t pr;
104	} context_t;	110	} context_t;
105		111
106	#endif	112	#endif
-		113
-		114	/** @}
-		115	*/
-		116
107		117

Subversion Repositories HelenOS-historic

(root)/uspace/trunk/libc/arch/ia64/include/psthread.h – Rev 1175 → 1656