WebSVN – HelenOS – Diff – /trunk/kernel/arch/sparc64/src/trap/interrupt.c


/*
 * 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 sparc64interrupt
 * @{
 */
/** @file
 */
 
#include <arch/interrupt.h>
#include <arch/trap/interrupt.h>
#include <interrupt.h>
#include <ddi/irq.h>
#include <typedefs.h>
#include <arch/types.h>
#include <debug.h>
#include <ipc/sysipc.h>
#include <arch/asm.h>
#include <arch/barrier.h>
#include <print.h>
#include <arch.h>
#include <mm/tlb.h>
#include <config.h>
#include <synch/spinlock.h>
 
/*
 * To be removed once we get rid of the dependency in ipc_irq_bind_arch().
 */
#include <arch/drivers/kbd.h>
#include <genarch/kbd/z8530.h>
 
/** Register Interrupt Level Handler.
 *
 * @param n Interrupt Level (1 - 15).
 * @param name Short descriptive string.
 * @param f Handler.
 */
void interrupt_register(int n, const char *name, iroutine f)
{
    ASSERT(n >= IVT_FIRST && n <= IVT_ITEMS);
   
    exc_register(n - 1, name, f);
}
 
/* Reregister irq to be IPC-ready */
void irq_ipc_bind_arch(unative_t irq)
{
#ifdef CONFIG_Z8530
    if (kbd_type == KBD_Z8530)
        z8530_belongs_to_kernel = false;
#endif
}
 
/** Process hardware interrupt.
 *
 * @param n Ignored.
 * @param istate Ignored.
 */
void interrupt(int n, istate_t *istate)
{
    uint64_t intrcv;
    uint64_t data0;
 
    intrcv = asi_u64_read(ASI_INTR_RECEIVE, 0);
    data0 = asi_u64_read(ASI_UDB_INTR_R, ASI_UDB_INTR_R_DATA_0);
 
    irq_t *irq = irq_dispatch_and_lock(data0);
    if (irq) {
        /*
         * The IRQ handler was found.
         */
        irq->handler(irq, irq->arg);
        spinlock_unlock(&irq->lock);
    } else if (data0 > config.base) {
        /*
         * This is a cross-call.
         * data0 contains address of kernel function.
         * We call the function only after we verify
         * it is on of the supported ones.
         */
#ifdef CONFIG_SMP
        if (data0 == (uintptr_t) tlb_shootdown_ipi_recv) {
            tlb_shootdown_ipi_recv();
        }
#endif
    } else {
        /*
         * Spurious interrupt.
         */
#ifdef CONFIG_DEBUG
        printf("cpu%d: spurious interrupt (intrcv=%#llx, data0=%#llx)\n", CPU->id, intrcv, data0);
#endif
    }
 
    membar();
    asi_u64_write(ASI_INTR_RECEIVE, 0, 0);
}
 
/** @}
 */
 

Rev 1920	Rev 1922
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 sparc64interrupt	29	/** @addtogroup sparc64interrupt
30	* @{	30	* @{
31	*/	31	*/
32	/** @file	32	/** @file
33	*/	33	*/
34		34
35	#include <arch/interrupt.h>	35	#include <arch/interrupt.h>
36	#include <arch/trap/interrupt.h>	36	#include <arch/trap/interrupt.h>
37	#include <interrupt.h>	37	#include <interrupt.h>
38	#include <ddi/irq.h>	38	#include <ddi/irq.h>
39	#include <typedefs.h>	39	#include <typedefs.h>
40	#include <arch/types.h>	40	#include <arch/types.h>
41	#include <debug.h>	41	#include <debug.h>
42	#include <ipc/sysipc.h>	42	#include <ipc/sysipc.h>
43	#include <arch/asm.h>	43	#include <arch/asm.h>
44	#include <arch/barrier.h>	44	#include <arch/barrier.h>
45	#include <print.h>	45	#include <print.h>
46	#include <arch.h>	46	#include <arch.h>
47	#include <mm/tlb.h>	47	#include <mm/tlb.h>
48	#include <config.h>	48	#include <config.h>
-		49	#include <synch/spinlock.h>
49		50
50	/*	51	/*
51	* To be removed once we get rid of the dependency in ipc_irq_bind_arch().	52	* To be removed once we get rid of the dependency in ipc_irq_bind_arch().
52	*/	53	*/
53	#include <arch/drivers/kbd.h>	54	#include <arch/drivers/kbd.h>
54	#include <genarch/kbd/z8530.h>	55	#include <genarch/kbd/z8530.h>
55		56
56	/** Register Interrupt Level Handler.	57	/** Register Interrupt Level Handler.
57	*	58	*
58	* @param n Interrupt Level (1 - 15).	59	* @param n Interrupt Level (1 - 15).
59	* @param name Short descriptive string.	60	* @param name Short descriptive string.
60	* @param f Handler.	61	* @param f Handler.
61	*/	62	*/
62	void interrupt_register(int n, const char *name, iroutine f)	63	void interrupt_register(int n, const char *name, iroutine f)
63	{	64	{
64	ASSERT(n >= IVT_FIRST && n <= IVT_ITEMS);	65	ASSERT(n >= IVT_FIRST && n <= IVT_ITEMS);
65		66
66	exc_register(n - 1, name, f);	67	exc_register(n - 1, name, f);
67	}	68	}
68		69
69	/* Reregister irq to be IPC-ready */	70	/* Reregister irq to be IPC-ready */
70	void irq_ipc_bind_arch(unative_t irq)	71	void irq_ipc_bind_arch(unative_t irq)
71	{	72	{
72	#ifdef CONFIG_Z8530	73	#ifdef CONFIG_Z8530
73	if (kbd_type == KBD_Z8530)	74	if (kbd_type == KBD_Z8530)
74	z8530_belongs_to_kernel = false;	75	z8530_belongs_to_kernel = false;
75	#endif	76	#endif
76	}	77	}
77		78
78	/** Process hardware interrupt.	79	/** Process hardware interrupt.
79	*	80	*
80	* @param n Ignored.	81	* @param n Ignored.
81	* @param istate Ignored.	82	* @param istate Ignored.
82	*/	83	*/
83	void interrupt(int n, istate_t *istate)	84	void interrupt(int n, istate_t *istate)
84	{	85	{
85	uint64_t intrcv;	86	uint64_t intrcv;
86	uint64_t data0;	87	uint64_t data0;
87		88
88	intrcv = asi_u64_read(ASI_INTR_RECEIVE, 0);	89	intrcv = asi_u64_read(ASI_INTR_RECEIVE, 0);
89	data0 = asi_u64_read(ASI_UDB_INTR_R, ASI_UDB_INTR_R_DATA_0);	90	data0 = asi_u64_read(ASI_UDB_INTR_R, ASI_UDB_INTR_R_DATA_0);
90		91
91	irq_t *irq = irq_dispatch(data0);	92	irq_t *irq = irq_dispatch_and_lock(data0);
92	if (irq) {	93	if (irq) {
93	/*	94	/*
94	* The IRQ handler was found.	95	* The IRQ handler was found.
95	*/	96	*/
96	irq->handler(irq, irq->arg);	97	irq->handler(irq, irq->arg);
-		98	spinlock_unlock(&irq->lock);
97	} else if (data0 > config.base) {	99	} else if (data0 > config.base) {
98	/*	100	/*
99	* This is a cross-call.	101	* This is a cross-call.
100	* data0 contains address of kernel function.	102	* data0 contains address of kernel function.
101	* We call the function only after we verify	103	* We call the function only after we verify
102	* it is on of the supported ones.	104	* it is on of the supported ones.
103	*/	105	*/
104	#ifdef CONFIG_SMP	106	#ifdef CONFIG_SMP
105	if (data0 == (uintptr_t) tlb_shootdown_ipi_recv) {	107	if (data0 == (uintptr_t) tlb_shootdown_ipi_recv) {
106	tlb_shootdown_ipi_recv();	108	tlb_shootdown_ipi_recv();
107	}	109	}
108	#endif	110	#endif
109	} else {	111	} else {
110	/*	112	/*
111	* Spurious interrupt.	113	* Spurious interrupt.
112	*/	114	*/
113	#ifdef CONFIG_DEBUG	115	#ifdef CONFIG_DEBUG
114	printf("cpu%d: spurious interrupt (intrcv=%#llx, data0=%#llx)\n", CPU->id, intrcv, data0);	116	printf("cpu%d: spurious interrupt (intrcv=%#llx, data0=%#llx)\n", CPU->id, intrcv, data0);
115	#endif	117	#endif
116	}	118	}
117		119
118	membar();	120	membar();
119	asi_u64_write(ASI_INTR_RECEIVE, 0, 0);	121	asi_u64_write(ASI_INTR_RECEIVE, 0, 0);
120	}	122	}
121		123
122	/** @}	124	/** @}
123	*/	125	*/
124		126

Subversion Repositories HelenOS

(root)/trunk/kernel/arch/sparc64/src/trap/interrupt.c – Rev 1920 → 1922