Subversion Repositories HelenOS

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Ignore whitespace Rev 1929 → Rev 1930

/trunk/kernel/arch/ppc64/include/interrupt.h
37,14 → 37,17
 
#include <arch/exception.h>
 
#define IRQ_COUNT 1
#define IVT_ITEMS 15
#define INT_OFFSET 0
#define IVT_ITEMS 16
#define IVT_FIRST 0
 
#define VECTOR_DECREMENTER 10
#define VECTOR_DATA_STORAGE 2
#define VECTOR_INSTRUCTION_STORAGE 3
#define VECTOR_EXTERNAL 4
#define VECTOR_DECREMENTER 8
 
extern void start_decrementer(void);
extern void interrupt_init(void);
extern void extint_handler(int n, istate_t *istate);
 
#endif
 
/trunk/kernel/arch/ppc64/include/drivers/pic.h
0,0 → 1,54
/*
* Copyright (C) 2006 Ondrej Palkovsky
* 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 ppc64
* @{
*/
/** @file
*/
 
#ifndef KERN_ppc64_PIC_H_
#define KERN_ppc64_PIC_H_
 
#define PIC_PENDING_LOW 8
#define PIC_PENDING_HIGH 4
#define PIC_MASK_LOW 9
#define PIC_MASK_HIGH 5
#define PIC_ACK_LOW 10
#define PIC_ACK_HIGH 6
 
void pic_init(uintptr_t base, size_t size);
void pic_enable_interrupt(int intnum);
void pic_disable_interrupt(int intnum);
void pic_ack_interrupt(int intnum);
int pic_get_pending(void);
 
#endif
 
/** @}
*/
/trunk/kernel/arch/ppc64/Makefile.inc
69,4 → 69,5
arch/$(ARCH)/src/mm/frame.c \
arch/$(ARCH)/src/mm/memory_init.c \
arch/$(ARCH)/src/mm/page.c \
arch/$(ARCH)/src/mm/tlb.c
arch/$(ARCH)/src/mm/tlb.c \
arch/$(ARCH)/src/drivers/pic.c
/trunk/kernel/arch/ppc64/src/interrupt.c
32,6 → 32,7
/** @file
*/
 
#include <ddi/irq.h>
#include <interrupt.h>
#include <arch/interrupt.h>
#include <arch/types.h>
38,6 → 39,9
#include <arch.h>
#include <time/clock.h>
#include <ipc/sysipc.h>
#include <arch/drivers/pic.h>
#include <arch/mm/tlb.h>
#include <print.h>
 
 
void start_decrementer(void)
50,6 → 54,32
}
 
 
/** Handler of external interrupts */
static void exception_external(int n, istate_t *istate)
{
int inum;
while ((inum = pic_get_pending()) != -1) {
irq_t *irq = irq_dispatch_and_lock(inum);
if (irq) {
/*
* The IRQ handler was found.
*/
irq->handler(irq, irq->arg);
spinlock_unlock(&irq->lock);
} else {
/*
* Spurious interrupt.
*/
#ifdef CONFIG_DEBUG
printf("cpu%d: spurious interrupt (inum=%d)\n", CPU->id, inum);
#endif
}
pic_ack_interrupt(inum);
}
}
 
 
static void exception_decrementer(int n, istate_t *istate)
{
clock();
60,16 → 90,9
/* Initialize basic tables for exception dispatching */
void interrupt_init(void)
{
exc_register(VECTOR_EXTERNAL, "external", exception_external);
exc_register(VECTOR_DECREMENTER, "timer", exception_decrementer);
}
 
 
/* Reregister irq to be IPC-ready */
void irq_ipc_bind_arch(unative_t irq)
{
panic("not implemented\n");
/* TODO */
}
 
/** @}
*/
/trunk/kernel/arch/ppc64/src/drivers/pic.c
0,0 → 1,94
/*
* Copyright (C) 2006 Ondrej Palkovsky
* 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 ppc64
* @{
*/
/** @file
*/
 
 
#include <arch/asm.h>
#include <arch/drivers/pic.h>
#include <byteorder.h>
#include <bitops.h>
 
static volatile uint32_t *pic;
 
void pic_init(uintptr_t base, size_t size)
{
pic = (uint32_t *) hw_map(base, size);
}
 
 
 
void pic_enable_interrupt(int intnum)
{
if (intnum < 32) {
pic[PIC_MASK_LOW] = pic[PIC_MASK_LOW] | (1 << intnum);
} else {
pic[PIC_MASK_HIGH] = pic[PIC_MASK_HIGH] | (1 << (intnum - 32));
}
}
 
void pic_disable_interrupt(int intnum)
{
if (intnum < 32) {
pic[PIC_MASK_LOW] = pic[PIC_MASK_LOW] & (~(1 << intnum));
} else {
pic[PIC_MASK_HIGH] = pic[PIC_MASK_HIGH] & (~(1 << (intnum - 32)));
}
}
 
void pic_ack_interrupt(int intnum)
{
if (intnum < 32)
pic[PIC_ACK_LOW] = 1 << intnum;
else
pic[PIC_ACK_HIGH] = 1 << (intnum - 32);
}
 
/** Return number of pending interrupt */
int pic_get_pending(void)
{
int pending;
 
pending = pic[PIC_PENDING_LOW];
if (pending)
return fnzb32(pending);
pending = pic[PIC_PENDING_HIGH];
if (pending)
return fnzb32(pending) + 32;
return -1;
}
 
/** @}
*/