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.
 */
 
#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 1002	Rev 1431
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	#ifndef __CPU_H__	29	#ifndef __CPU_H__
30	#define __CPU_H__	30	#define __CPU_H__
31		31
32	#include <arch/cpu.h>	32	#include <arch/cpu.h>
33	#include <proc/scheduler.h>	33	#include <proc/scheduler.h>
34	#include <synch/spinlock.h>	34	#include <synch/spinlock.h>
35	#include <synch/waitq.h>	35	#include <synch/waitq.h>
36	#include <arch/types.h>	36	#include <arch/types.h>
37	#include <typedefs.h>	37	#include <typedefs.h>
38	#include <arch/context.h>	38	#include <arch/context.h>
39	#include <config.h>	39	#include <config.h>
40	#include <adt/list.h>	40	#include <adt/list.h>
41	#include <mm/tlb.h>	41	#include <mm/tlb.h>
42		42
43	#define CPU_STACK_SIZE STACK_SIZE	43	#define CPU_STACK_SIZE STACK_SIZE
44		44
45	/** CPU structure.	45	/** CPU structure.
46	*	46	*
47	* There is one structure like this for every processor.	47	* There is one structure like this for every processor.
48	*/	48	*/
49	struct cpu {	49	struct cpu {
50	SPINLOCK_DECLARE(lock);	50	SPINLOCK_DECLARE(lock);
51		51
52	tlb_shootdown_msg_t tlb_messages[TLB_MESSAGE_QUEUE_LEN];	52	tlb_shootdown_msg_t tlb_messages[TLB_MESSAGE_QUEUE_LEN];
53	count_t tlb_messages_count;	53	count_t tlb_messages_count;
54		54
55	context_t saved_context;	55	context_t saved_context;
56		56
57	atomic_t nrdy;	57	atomic_t nrdy;
58	runq_t rq[RQ_COUNT];	58	runq_t rq[RQ_COUNT];
59	volatile count_t needs_relink;	59	volatile count_t needs_relink;
60		60
61	SPINLOCK_DECLARE(timeoutlock);	61	SPINLOCK_DECLARE(timeoutlock);
62	link_t timeout_active_head;	62	link_t timeout_active_head;
63		63
-		64	count_t missed_clock_ticks; /**< When system clock loses a tick, it is recorded here
-		65	so that clock() can react. This variable is
-		66	CPU-local and can be only accessed when interrupts
-		67	are disabled. */
-		68
64	/**	69	/**
65	* Processor ID assigned by kernel.	70	* Processor ID assigned by kernel.
66	*/	71	*/
67	int id;	72	int id;
68		73
69	int active;	74	int active;
70	int tlb_active;	75	int tlb_active;
71		76
72	__u16 frequency_mhz;	77	__u16 frequency_mhz;
73	__u32 delay_loop_const;	78	__u32 delay_loop_const;
74		79
75	cpu_arch_t arch;	80	cpu_arch_t arch;
76		81
77	thread_t *fpu_owner;	82	thread_t *fpu_owner;
78		83
79	/**	84	/**
80	* Stack used by scheduler when there is no running thread.	85	* Stack used by scheduler when there is no running thread.
81	*/	86	*/
82	__u8 *stack;	87	__u8 *stack;
83	};	88	};
84		89
85	extern cpu_t *cpus;	90	extern cpu_t *cpus;
86		91
87	extern void cpu_init(void);	92	extern void cpu_init(void);
88	extern void cpu_list(void);	93	extern void cpu_list(void);
89		94
90	extern void cpu_arch_init(void);	95	extern void cpu_arch_init(void);
91	extern void cpu_identify(void);	96	extern void cpu_identify(void);
92	extern void cpu_print_report(cpu_t *m);	97	extern void cpu_print_report(cpu_t *m);
93		98
94	#endif	99	#endif
95		100

Subversion Repositories HelenOS-historic

(root)/kernel/trunk/generic/include/cpu.h – Rev 1002 → 1431