0,0 → 1,103 |
/* |
* 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. |
*/ |
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/** @addtogroup generic |
* @{ |
*/ |
/** @file |
*/ |
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#ifndef KERN_CPU_H_ |
#define KERN_CPU_H_ |
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#include <mm/tlb.h> |
#include <synch/spinlock.h> |
#include <proc/scheduler.h> |
#include <arch/cpu.h> |
#include <arch/context.h> |
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#define CPU_STACK_SIZE STACK_SIZE |
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/** CPU structure. |
* |
* There is one structure like this for every processor. |
*/ |
typedef struct { |
SPINLOCK_DECLARE(lock); |
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tlb_shootdown_msg_t tlb_messages[TLB_MESSAGE_QUEUE_LEN]; |
size_t tlb_messages_count; |
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context_t saved_context; |
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atomic_t nrdy; |
runq_t rq[RQ_COUNT]; |
volatile size_t needs_relink; |
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SPINLOCK_DECLARE(timeoutlock); |
link_t timeout_active_head; |
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size_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. */ |
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/** |
* Processor ID assigned by kernel. |
*/ |
unsigned int id; |
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int active; |
int tlb_active; |
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uint16_t frequency_mhz; |
uint32_t delay_loop_const; |
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cpu_arch_t arch; |
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struct thread *fpu_owner; |
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/** |
* Stack used by scheduler when there is no running thread. |
*/ |
uint8_t *stack; |
} cpu_t; |
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extern cpu_t *cpus; |
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extern void cpu_init(void); |
extern void cpu_list(void); |
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extern void cpu_arch_init(void); |
extern void cpu_identify(void); |
extern void cpu_print_report(cpu_t *m); |
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#endif |
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/** @} |
*/ |