WebSVN – HelenOS – Diff – /trunk/kernel/genarch/src/acpi/madt.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.
 */
 
#include <arch/types.h>
#include <typedefs.h>
#include <arch/acpi/acpi.h>
#include <arch/acpi/madt.h>
#include <arch/smp/apic.h>
#include <arch/smp/smp.h>
#include <panic.h>
#include <debug.h>
#include <config.h>
#include <print.h>
#include <mm/heap.h>
#include <memstr.h>
#include <sort.h>
 
struct acpi_madt *acpi_madt = NULL;
 
#ifdef __SMP__
 
static void madt_l_apic_entry(struct madt_l_apic *la, __u32 index);
static void madt_io_apic_entry(struct madt_io_apic *ioa, __u32 index);
static int madt_cmp(void * a, void * b);
 
struct madt_l_apic *madt_l_apic_entries = NULL;
struct madt_io_apic *madt_io_apic_entries = NULL;
 
__u32 madt_l_apic_entry_index = 0;
__u32 madt_io_apic_entry_index = 0;
int madt_l_apic_entry_cnt = 0;
int madt_io_apic_entry_cnt = 0;
 
struct madt_apic_header * * madt_entries_index = NULL;
int madt_entries_index_cnt = 0;
 
char *entry[] = {
    "L_APIC",
    "IO_APIC",
    "INTR_SRC_OVRD",
    "NMI_SRC",
    "L_APIC_NMI",
    "L_APIC_ADDR_OVRD",
    "IO_SAPIC",
    "L_SAPIC",
    "PLATFORM_INTR_SRC"
};
 
/*
 * ACPI MADT Implementation of SMP configuration interface.
 */
static count_t madt_cpu_count(void);
static bool madt_cpu_enabled(index_t i);
static bool madt_cpu_bootstrap(index_t i);
static __u8 madt_cpu_apic_id(index_t i);
 
struct smp_config_operations madt_config_operations = {
    .cpu_count = madt_cpu_count,
    .cpu_enabled = madt_cpu_enabled,
    .cpu_bootstrap = madt_cpu_bootstrap,
    .cpu_apic_id = madt_cpu_apic_id
};
 
static count_t madt_cpu_count(void)
{
    return madt_l_apic_entry_cnt;
}
 
static bool madt_cpu_enabled(index_t i)
{
    ASSERT(i < madt_l_apic_entry_cnt);
    return ((struct madt_l_apic *) madt_entries_index[madt_l_apic_entry_index + i])->flags & 0x1;
 
}
 
static bool madt_cpu_bootstrap(index_t i)
{
    ASSERT(i < madt_l_apic_entry_cnt);
    return ((struct madt_l_apic *) madt_entries_index[madt_l_apic_entry_index + i])->apic_id == l_apic_id();
}
 
static __u8 madt_cpu_apic_id(index_t i)
{
    ASSERT(i < madt_l_apic_entry_cnt);
    return ((struct madt_l_apic *) madt_entries_index[madt_l_apic_entry_index + i])->apic_id;
}
 
int madt_cmp(void * a, void * b)
{
    return
        (((struct madt_apic_header *) a)->type > ((struct madt_apic_header *) b)->type) ?
        1 :
        ((((struct madt_apic_header *) a)->type < ((struct madt_apic_header *) b)->type) ? -1 : 0);
}
   
void acpi_madt_parse(void)
{
 
 
    struct madt_apic_header *end = (struct madt_apic_header *) (((__u8 *) acpi_madt) + acpi_madt->header.length);
    struct madt_apic_header *h;
   
        l_apic = (__u32 *) (__native) acpi_madt->l_apic_address;
 
    /* calculate madt entries */
    for (h = &acpi_madt->apic_header[0]; h < end; h = (struct madt_apic_header *) (((__u8 *) h) + h->length)) {
        madt_entries_index_cnt++;
    }
 
    /* create madt apic entries index array */
    madt_entries_index = (struct madt_apic_header * *) malloc(madt_entries_index_cnt * sizeof(struct madt_apic_header * *));
 
    __u32 index = 0;
 
    for (h = &acpi_madt->apic_header[0]; h < end; h = (struct madt_apic_header *) (((__u8 *) h) + h->length)) {
        madt_entries_index[index++] = h;
    }
 
    /* Quicksort MADT index structure */
    qsort(madt_entries_index, madt_entries_index_cnt, sizeof(__address), &madt_cmp);
 
    /* Parse MADT entries */   
    for (index = 0; index < madt_entries_index_cnt - 1; index++) {
        h = madt_entries_index[index];
        switch (h->type) {
            case MADT_L_APIC:
                madt_l_apic_entry((struct madt_l_apic *) h, index);
                break;
            case MADT_IO_APIC:
                madt_io_apic_entry((struct madt_io_apic *) h, index);
                break;
            case MADT_INTR_SRC_OVRD:
            case MADT_NMI_SRC:
            case MADT_L_APIC_NMI:
            case MADT_L_APIC_ADDR_OVRD:
            case MADT_IO_SAPIC:
            case MADT_L_SAPIC:
            case MADT_PLATFORM_INTR_SRC:
                printf("MADT: skipping %s entry (type=%d)\n", entry[h->type], h->type);
                break;
 
            default:
                if (h->type >= MADT_RESERVED_SKIP_BEGIN && h->type <= MADT_RESERVED_SKIP_END) {
                    printf("MADT: skipping reserved entry (type=%d)\n", h->type);
                }
                if (h->type >= MADT_RESERVED_OEM_BEGIN) {
                    printf("MADT: skipping OEM entry (type=%d)\n", h->type);
                }
                break;
        }
   
   
    }
   
 
    if (madt_l_apic_entry_cnt)
        config.cpu_count = madt_l_apic_entry_cnt;
}
 
 
void madt_l_apic_entry(struct madt_l_apic *la, __u32 index)
{
    if (!madt_l_apic_entry_cnt++) {
        madt_l_apic_entry_index = index;
    }
       
    if (!(la->flags & 0x1)) {
        /* Processor is unusable, skip it. */
        return;
    }
       
    apic_id_mask |= 1<<la->apic_id;
}
 
void madt_io_apic_entry(struct madt_io_apic *ioa, __u32 index)
{
    if (!madt_io_apic_entry_cnt++) {
        /* remember index of the first io apic entry */
        madt_io_apic_entry_index = index;
        io_apic = (__u32 *) (__native) ioa->io_apic_address;
    } else {
        /* currently not supported */
        return;
    }
}
 
 
#endif /* __SMP__ */
 

Rev 334	Rev 349
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	#include <arch/types.h>	29	#include <arch/types.h>
30	#include <typedefs.h>	30	#include <typedefs.h>
31	#include <arch/acpi/acpi.h>	31	#include <arch/acpi/acpi.h>
32	#include <arch/acpi/madt.h>	32	#include <arch/acpi/madt.h>
33	#include <arch/smp/apic.h>	33	#include <arch/smp/apic.h>
34	#include <arch/smp/smp.h>	34	#include <arch/smp/smp.h>
35	#include <panic.h>	35	#include <panic.h>
36	#include <debug.h>	36	#include <debug.h>
37	#include <config.h>	37	#include <config.h>
38	#include <print.h>	38	#include <print.h>
39	#include <mm/heap.h>	39	#include <mm/heap.h>
40	#include <memstr.h>	40	#include <memstr.h>
41	#include <sort.h>	41	#include <sort.h>
42		42
43	struct acpi_madt *acpi_madt = NULL;	43	struct acpi_madt *acpi_madt = NULL;
44		44
45	#ifdef __SMP__	45	#ifdef __SMP__
46		46
47	static void madt_l_apic_entry(struct madt_l_apic *la, __u32 index);	47	static void madt_l_apic_entry(struct madt_l_apic *la, __u32 index);
48	static void madt_io_apic_entry(struct madt_io_apic *ioa, __u32 index);	48	static void madt_io_apic_entry(struct madt_io_apic *ioa, __u32 index);
49	static int madt_cmp(void * a, void * b);	49	static int madt_cmp(void * a, void * b);
50		50
51	struct madt_l_apic *madt_l_apic_entries = NULL;	51	struct madt_l_apic *madt_l_apic_entries = NULL;
52	struct madt_io_apic *madt_io_apic_entries = NULL;	52	struct madt_io_apic *madt_io_apic_entries = NULL;
53		53
54	__u32 madt_l_apic_entry_index = 0;	54	__u32 madt_l_apic_entry_index = 0;
55	__u32 madt_io_apic_entry_index = 0;	55	__u32 madt_io_apic_entry_index = 0;
56	int madt_l_apic_entry_cnt = 0;	56	int madt_l_apic_entry_cnt = 0;
57	int madt_io_apic_entry_cnt = 0;	57	int madt_io_apic_entry_cnt = 0;
58		58
59	struct madt_apic_header * * madt_entries_index = NULL;	59	struct madt_apic_header * * madt_entries_index = NULL;
60	int madt_entries_index_cnt = 0;	60	int madt_entries_index_cnt = 0;
61		61
62	char *entry[] = {	62	char *entry[] = {
63	"L_APIC",	63	"L_APIC",
64	"IO_APIC",	64	"IO_APIC",
65	"INTR_SRC_OVRD",	65	"INTR_SRC_OVRD",
66	"NMI_SRC",	66	"NMI_SRC",
67	"L_APIC_NMI",	67	"L_APIC_NMI",
68	"L_APIC_ADDR_OVRD",	68	"L_APIC_ADDR_OVRD",
69	"IO_SAPIC",	69	"IO_SAPIC",
70	"L_SAPIC",	70	"L_SAPIC",
71	"PLATFORM_INTR_SRC"	71	"PLATFORM_INTR_SRC"
72	};	72	};
73		73
74	/*	74	/*
75	* ACPI MADT Implementation of SMP configuration interface.	75	* ACPI MADT Implementation of SMP configuration interface.
76	*/	76	*/
77	static count_t madt_cpu_count(void);	77	static count_t madt_cpu_count(void);
78	static bool madt_cpu_enabled(index_t i);	78	static bool madt_cpu_enabled(index_t i);
79	static bool madt_cpu_bootstrap(index_t i);	79	static bool madt_cpu_bootstrap(index_t i);
80	static __u8 madt_cpu_apic_id(index_t i);	80	static __u8 madt_cpu_apic_id(index_t i);
81		81
82	struct smp_config_operations madt_config_operations = {	82	struct smp_config_operations madt_config_operations = {
83	.cpu_count = madt_cpu_count,	83	.cpu_count = madt_cpu_count,
84	.cpu_enabled = madt_cpu_enabled,	84	.cpu_enabled = madt_cpu_enabled,
85	.cpu_bootstrap = madt_cpu_bootstrap,	85	.cpu_bootstrap = madt_cpu_bootstrap,
86	.cpu_apic_id = madt_cpu_apic_id	86	.cpu_apic_id = madt_cpu_apic_id
87	};	87	};
88		88
89	static count_t madt_cpu_count(void)	89	static count_t madt_cpu_count(void)
90	{	90	{
91	return madt_l_apic_entry_cnt;	91	return madt_l_apic_entry_cnt;
92	}	92	}
93		93
94	static bool madt_cpu_enabled(index_t i)	94	static bool madt_cpu_enabled(index_t i)
95	{	95	{
96	ASSERT(i < madt_l_apic_entry_cnt);	96	ASSERT(i < madt_l_apic_entry_cnt);
97	return ((struct madt_l_apic *) madt_entries_index[madt_l_apic_entry_index + i])->flags & 0x1;	97	return ((struct madt_l_apic *) madt_entries_index[madt_l_apic_entry_index + i])->flags & 0x1;
98		98
99	}	99	}
100		100
101	static bool madt_cpu_bootstrap(index_t i)	101	static bool madt_cpu_bootstrap(index_t i)
102	{	102	{
103	ASSERT(i < madt_l_apic_entry_cnt);	103	ASSERT(i < madt_l_apic_entry_cnt);
104	return ((struct madt_l_apic *) madt_entries_index[madt_l_apic_entry_index + i])->apic_id == l_apic_id();	104	return ((struct madt_l_apic *) madt_entries_index[madt_l_apic_entry_index + i])->apic_id == l_apic_id();
105	}	105	}
106		106
107	static __u8 madt_cpu_apic_id(index_t i)	107	static __u8 madt_cpu_apic_id(index_t i)
108	{	108	{
109	ASSERT(i < madt_l_apic_entry_cnt);	109	ASSERT(i < madt_l_apic_entry_cnt);
110	return ((struct madt_l_apic *) madt_entries_index[madt_l_apic_entry_index + i])->apic_id;	110	return ((struct madt_l_apic *) madt_entries_index[madt_l_apic_entry_index + i])->apic_id;
111	}	111	}
112		112
113	int madt_cmp(void * a, void * b)	113	int madt_cmp(void * a, void * b)
114	{	114	{
115	return	115	return
116	(((struct madt_apic_header ) a)->type > ((struct madt_apic_header ) b)->type) ?	116	(((struct madt_apic_header ) a)->type > ((struct madt_apic_header ) b)->type) ?
117	1 :	117	1 :
118	((((struct madt_apic_header ) a)->type < ((struct madt_apic_header ) b)->type) ? -1 : 0);	118	((((struct madt_apic_header ) a)->type < ((struct madt_apic_header ) b)->type) ? -1 : 0);
119	}	119	}
120		120
121	void acpi_madt_parse(void)	121	void acpi_madt_parse(void)
122	{	122	{
123		-
124		-
125	struct madt_apic_header end = (struct madt_apic_header ) (((__u8 *) acpi_madt) + acpi_madt->header.length);	123	struct madt_apic_header end = (struct madt_apic_header ) (((__u8 *) acpi_madt) + acpi_madt->header.length);
126	struct madt_apic_header *h;	124	struct madt_apic_header *h;
127		125
128	l_apic = (__u32 *) (__native) acpi_madt->l_apic_address;	126	l_apic = (__u32 *) (__native) acpi_madt->l_apic_address;
129		127
130	/* calculate madt entries */	128	/* calculate madt entries */
131	for (h = &acpi_madt->apic_header[0]; h < end; h = (struct madt_apic_header ) (((__u8 ) h) + h->length)) {	129	for (h = &acpi_madt->apic_header[0]; h < end; h = (struct madt_apic_header ) (((__u8 ) h) + h->length)) {
132	madt_entries_index_cnt++;	130	madt_entries_index_cnt++;
133	}	131	}
134		132
135	/* create madt apic entries index array */	133	/* create madt apic entries index array */
136	madt_entries_index = (struct madt_apic_header * ) malloc(madt_entries_index_cnt sizeof(struct madt_apic_header * *));	134	madt_entries_index = (struct madt_apic_header * ) malloc(madt_entries_index_cnt sizeof(struct madt_apic_header * *));
137		135
138	__u32 index = 0;	136	__u32 index = 0;
139		137
140	for (h = &acpi_madt->apic_header[0]; h < end; h = (struct madt_apic_header ) (((__u8 ) h) + h->length)) {	138	for (h = &acpi_madt->apic_header[0]; h < end; h = (struct madt_apic_header ) (((__u8 ) h) + h->length)) {
141	madt_entries_index[index++] = h;	139	madt_entries_index[index++] = h;
142	}	140	}
143		141
144	/* Quicksort MADT index structure */	142	/* Quicksort MADT index structure */
145	qsort(madt_entries_index, madt_entries_index_cnt, sizeof(__address), &madt_cmp);	143	qsort(madt_entries_index, madt_entries_index_cnt, sizeof(__address), &madt_cmp);
146		144
147	/* Parse MADT entries */	145	/* Parse MADT entries */
148	for (index = 0; index < madt_entries_index_cnt - 1; index++) {	146	for (index = 0; index < madt_entries_index_cnt - 1; index++) {
149	h = madt_entries_index[index];	147	h = madt_entries_index[index];
150	switch (h->type) {	148	switch (h->type) {
151	case MADT_L_APIC:	149	case MADT_L_APIC:
152	madt_l_apic_entry((struct madt_l_apic *) h, index);	150	madt_l_apic_entry((struct madt_l_apic *) h, index);
153	break;	151	break;
154	case MADT_IO_APIC:	152	case MADT_IO_APIC:
155	madt_io_apic_entry((struct madt_io_apic *) h, index);	153	madt_io_apic_entry((struct madt_io_apic *) h, index);
156	break;	154	break;
157	case MADT_INTR_SRC_OVRD:	155	case MADT_INTR_SRC_OVRD:
158	case MADT_NMI_SRC:	156	case MADT_NMI_SRC:
159	case MADT_L_APIC_NMI:	157	case MADT_L_APIC_NMI:
160	case MADT_L_APIC_ADDR_OVRD:	158	case MADT_L_APIC_ADDR_OVRD:
161	case MADT_IO_SAPIC:	159	case MADT_IO_SAPIC:
162	case MADT_L_SAPIC:	160	case MADT_L_SAPIC:
163	case MADT_PLATFORM_INTR_SRC:	161	case MADT_PLATFORM_INTR_SRC:
164	printf("MADT: skipping %s entry (type=%d)\n", entry[h->type], h->type);	162	printf("MADT: skipping %s entry (type=%d)\n", entry[h->type], h->type);
165	break;	163	break;
166		164
167	default:	165	default:
168	if (h->type >= MADT_RESERVED_SKIP_BEGIN && h->type <= MADT_RESERVED_SKIP_END) {	166	if (h->type >= MADT_RESERVED_SKIP_BEGIN && h->type <= MADT_RESERVED_SKIP_END) {
169	printf("MADT: skipping reserved entry (type=%d)\n", h->type);	167	printf("MADT: skipping reserved entry (type=%d)\n", h->type);
170	}	168	}
171	if (h->type >= MADT_RESERVED_OEM_BEGIN) {	169	if (h->type >= MADT_RESERVED_OEM_BEGIN) {
172	printf("MADT: skipping OEM entry (type=%d)\n", h->type);	170	printf("MADT: skipping OEM entry (type=%d)\n", h->type);
173	}	171	}
174	break;	172	break;
175	}	173	}
176		174
177		175
178	}	176	}
179		177
180		178
181	if (madt_l_apic_entry_cnt)	179	if (madt_l_apic_entry_cnt)
182	config.cpu_count = madt_l_apic_entry_cnt;	180	config.cpu_count = madt_l_apic_entry_cnt;
183	}	181	}
184		182
185		183
186	void madt_l_apic_entry(struct madt_l_apic *la, __u32 index)	184	void madt_l_apic_entry(struct madt_l_apic *la, __u32 index)
187	{	185	{
188	if (!madt_l_apic_entry_cnt++) {	186	if (!madt_l_apic_entry_cnt++) {
189	madt_l_apic_entry_index = index;	187	madt_l_apic_entry_index = index;
190	}	188	}
191		189
192	if (!(la->flags & 0x1)) {	190	if (!(la->flags & 0x1)) {
193	/* Processor is unusable, skip it. */	191	/* Processor is unusable, skip it. */
194	return;	192	return;
195	}	193	}
196		194
197	apic_id_mask \|= 1<<la->apic_id;	195	apic_id_mask \|= 1<<la->apic_id;
198	}	196	}
199		197
200	void madt_io_apic_entry(struct madt_io_apic *ioa, __u32 index)	198	void madt_io_apic_entry(struct madt_io_apic *ioa, __u32 index)
201	{	199	{
202	if (!madt_io_apic_entry_cnt++) {	200	if (!madt_io_apic_entry_cnt++) {
203	/* remember index of the first io apic entry */	201	/* remember index of the first io apic entry */
204	madt_io_apic_entry_index = index;	202	madt_io_apic_entry_index = index;
205	io_apic = (__u32 *) (__native) ioa->io_apic_address;	203	io_apic = (__u32 *) (__native) ioa->io_apic_address;
206	} else {	204	} else {
207	/* currently not supported */	205	/* currently not supported */
208	return;	206	return;
209	}	207	}
210	}	208	}
211		209
212		210
213	#endif /* __SMP__ */	211	#endif /* __SMP__ */
214		212

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(root)/trunk/kernel/genarch/src/acpi/madt.c @ 3229 – Rev 334 → 349