WebSVN – HelenOS-historic – Diff – /kernel/trunk/generic/include/cpu.h


/*
 * Copyright (C) 2001-2004 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 generic
 * @{
 */
/** @file
 */
 
#ifndef __CPU_H__
#define __CPU_H__
 
#include <arch/cpu.h>
#include <proc/scheduler.h>
#include <synch/spinlock.h>
#include <synch/waitq.h>
#include <arch/types.h>
#include <typedefs.h>
#include <arch/context.h>
#include <config.h>
#include <adt/list.h>
#include <mm/tlb.h>
 
#define CPU_STACK_SIZE  STACK_SIZE
 
/** CPU structure.
 *
 * There is one structure like this for every processor.
 */
struct cpu {
    SPINLOCK_DECLARE(lock);
 
    tlb_shootdown_msg_t tlb_messages[TLB_MESSAGE_QUEUE_LEN];
    count_t tlb_messages_count;
   
    context_t saved_context;
 
    atomic_t nrdy;
    runq_t rq[RQ_COUNT];
    volatile count_t needs_relink;
 
    SPINLOCK_DECLARE(timeoutlock);
    link_t timeout_active_head;
 
    count_t missed_clock_ticks; /**< When system clock loses a tick, it is recorded here
                         so that clock() can react. This variable is
                         CPU-local and can be only accessed when interrupts
                         are disabled. */
 
    /**
     * Processor ID assigned by kernel.
     */
    int id;
   
    int active;
    int tlb_active;
 
    __u16 frequency_mhz;
    __u32 delay_loop_const;
 
    cpu_arch_t arch;
 
    thread_t *fpu_owner;
   
    /**
     * Stack used by scheduler when there is no running thread.
     */
    __u8 *stack;
};
 
extern cpu_t *cpus;
 
extern void cpu_init(void);
extern void cpu_list(void);
 
extern void cpu_arch_init(void);
extern void cpu_identify(void);
extern void cpu_print_report(cpu_t *m);
 
#endif
 
/** @}
 */
 
 

Rev 1702	Rev 1731
1	/*	1	/*
2	* Copyright (C) 2001-2004 Jakub Jermar	2	* Copyright (C) 2001-2004 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 genericcpu	29	/** @addtogroup generic
30	* @{	30	* @{
31	*/	31	*/
32	/** @file	32	/** @file
33	*/	33	*/
34		34
35	#ifndef __CPU_H__	35	#ifndef __CPU_H__
36	#define __CPU_H__	36	#define __CPU_H__
37		37
38	#include <arch/cpu.h>	38	#include <arch/cpu.h>
39	#include <proc/scheduler.h>	39	#include <proc/scheduler.h>
40	#include <synch/spinlock.h>	40	#include <synch/spinlock.h>
41	#include <synch/waitq.h>	41	#include <synch/waitq.h>
42	#include <arch/types.h>	42	#include <arch/types.h>
43	#include <typedefs.h>	43	#include <typedefs.h>
44	#include <arch/context.h>	44	#include <arch/context.h>
45	#include <config.h>	45	#include <config.h>
46	#include <adt/list.h>	46	#include <adt/list.h>
47	#include <mm/tlb.h>	47	#include <mm/tlb.h>
48		48
49	#define CPU_STACK_SIZE STACK_SIZE	49	#define CPU_STACK_SIZE STACK_SIZE
50		50
51	/** CPU structure.	51	/** CPU structure.
52	*	52	*
53	* There is one structure like this for every processor.	53	* There is one structure like this for every processor.
54	*/	54	*/
55	struct cpu {	55	struct cpu {
56	SPINLOCK_DECLARE(lock);	56	SPINLOCK_DECLARE(lock);
57		57
58	tlb_shootdown_msg_t tlb_messages[TLB_MESSAGE_QUEUE_LEN];	58	tlb_shootdown_msg_t tlb_messages[TLB_MESSAGE_QUEUE_LEN];
59	count_t tlb_messages_count;	59	count_t tlb_messages_count;
60		60
61	context_t saved_context;	61	context_t saved_context;
62		62
63	atomic_t nrdy;	63	atomic_t nrdy;
64	runq_t rq[RQ_COUNT];	64	runq_t rq[RQ_COUNT];
65	volatile count_t needs_relink;	65	volatile count_t needs_relink;
66		66
67	SPINLOCK_DECLARE(timeoutlock);	67	SPINLOCK_DECLARE(timeoutlock);
68	link_t timeout_active_head;	68	link_t timeout_active_head;
69		69
70	count_t missed_clock_ticks; /**< When system clock loses a tick, it is recorded here	70	count_t missed_clock_ticks; /**< When system clock loses a tick, it is recorded here
71	so that clock() can react. This variable is	71	so that clock() can react. This variable is
72	CPU-local and can be only accessed when interrupts	72	CPU-local and can be only accessed when interrupts
73	are disabled. */	73	are disabled. */
74		74
75	/**	75	/**
76	* Processor ID assigned by kernel.	76	* Processor ID assigned by kernel.
77	*/	77	*/
78	int id;	78	int id;
79		79
80	int active;	80	int active;
81	int tlb_active;	81	int tlb_active;
82		82
83	__u16 frequency_mhz;	83	__u16 frequency_mhz;
84	__u32 delay_loop_const;	84	__u32 delay_loop_const;
85		85
86	cpu_arch_t arch;	86	cpu_arch_t arch;
87		87
88	thread_t *fpu_owner;	88	thread_t *fpu_owner;
89		89
90	/**	90	/**
91	* Stack used by scheduler when there is no running thread.	91	* Stack used by scheduler when there is no running thread.
92	*/	92	*/
93	__u8 *stack;	93	__u8 *stack;
94	};	94	};
95		95
96	extern cpu_t *cpus;	96	extern cpu_t *cpus;
97		97
98	extern void cpu_init(void);	98	extern void cpu_init(void);
99	extern void cpu_list(void);	99	extern void cpu_list(void);
100		100
101	extern void cpu_arch_init(void);	101	extern void cpu_arch_init(void);
102	extern void cpu_identify(void);	102	extern void cpu_identify(void);
103	extern void cpu_print_report(cpu_t *m);	103	extern void cpu_print_report(cpu_t *m);
104		104
105	#endif	105	#endif
106		106
107	/** @}	107	/** @}
108	*/	108	*/
109		-
110		109

Subversion Repositories HelenOS-historic

(root)/kernel/trunk/generic/include/cpu.h – Rev 1702 → 1731