WebSVN – HelenOS-historic – Diff – /kernel/trunk/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;
 
index_t madt_l_apic_entry_index = 0;
index_t madt_io_apic_entry_index = 0;
count_t madt_l_apic_entry_cnt = 0;
count_t madt_io_apic_entry_cnt = 0;
count_t cpu_count = 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 (cpu_count)
        config.cpu_count = cpu_count;
}
 
 
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;
    }
   
    cpu_count++;   
    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 349	Rev 370
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	index_t madt_l_apic_entry_index = 0;
55	__u32 madt_io_apic_entry_index = 0;	55	index_t madt_io_apic_entry_index = 0;
56	int madt_l_apic_entry_cnt = 0;	56	count_t madt_l_apic_entry_cnt = 0;
57	int madt_io_apic_entry_cnt = 0;	57	count_t madt_io_apic_entry_cnt = 0;
-		58	count_t cpu_count = 0;
58		59
59	struct madt_apic_header * * madt_entries_index = NULL;	60	struct madt_apic_header * * madt_entries_index = NULL;
60	int madt_entries_index_cnt = 0;	61	int madt_entries_index_cnt = 0;
61		62
62	char *entry[] = {	63	char *entry[] = {
63	"L_APIC",	64	"L_APIC",
64	"IO_APIC",	65	"IO_APIC",
65	"INTR_SRC_OVRD",	66	"INTR_SRC_OVRD",
66	"NMI_SRC",	67	"NMI_SRC",
67	"L_APIC_NMI",	68	"L_APIC_NMI",
68	"L_APIC_ADDR_OVRD",	69	"L_APIC_ADDR_OVRD",
69	"IO_SAPIC",	70	"IO_SAPIC",
70	"L_SAPIC",	71	"L_SAPIC",
71	"PLATFORM_INTR_SRC"	72	"PLATFORM_INTR_SRC"
72	};	73	};
73		74
74	/*	75	/*
75	* ACPI MADT Implementation of SMP configuration interface.	76	* ACPI MADT Implementation of SMP configuration interface.
76	*/	77	*/
77	static count_t madt_cpu_count(void);	78	static count_t madt_cpu_count(void);
78	static bool madt_cpu_enabled(index_t i);	79	static bool madt_cpu_enabled(index_t i);
79	static bool madt_cpu_bootstrap(index_t i);	80	static bool madt_cpu_bootstrap(index_t i);
80	static __u8 madt_cpu_apic_id(index_t i);	81	static __u8 madt_cpu_apic_id(index_t i);
81		82
82	struct smp_config_operations madt_config_operations = {	83	struct smp_config_operations madt_config_operations = {
83	.cpu_count = madt_cpu_count,	84	.cpu_count = madt_cpu_count,
84	.cpu_enabled = madt_cpu_enabled,	85	.cpu_enabled = madt_cpu_enabled,
85	.cpu_bootstrap = madt_cpu_bootstrap,	86	.cpu_bootstrap = madt_cpu_bootstrap,
86	.cpu_apic_id = madt_cpu_apic_id	87	.cpu_apic_id = madt_cpu_apic_id
87	};	88	};
88		89
89	static count_t madt_cpu_count(void)	90	static count_t madt_cpu_count(void)
90	{	91	{
91	return madt_l_apic_entry_cnt;	92	return madt_l_apic_entry_cnt;
92	}	93	}
93		94
94	static bool madt_cpu_enabled(index_t i)	95	static bool madt_cpu_enabled(index_t i)
95	{	96	{
96	ASSERT(i < madt_l_apic_entry_cnt);	97	ASSERT(i < madt_l_apic_entry_cnt);
97	return ((struct madt_l_apic *) madt_entries_index[madt_l_apic_entry_index + i])->flags & 0x1;	98	return ((struct madt_l_apic *) madt_entries_index[madt_l_apic_entry_index + i])->flags & 0x1;
98		99
99	}	100	}
100		101
101	static bool madt_cpu_bootstrap(index_t i)	102	static bool madt_cpu_bootstrap(index_t i)
102	{	103	{
103	ASSERT(i < madt_l_apic_entry_cnt);	104	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();	105	return ((struct madt_l_apic *) madt_entries_index[madt_l_apic_entry_index + i])->apic_id == l_apic_id();
105	}	106	}
106		107
107	static __u8 madt_cpu_apic_id(index_t i)	108	static __u8 madt_cpu_apic_id(index_t i)
108	{	109	{
109	ASSERT(i < madt_l_apic_entry_cnt);	110	ASSERT(i < madt_l_apic_entry_cnt);
110	return ((struct madt_l_apic *) madt_entries_index[madt_l_apic_entry_index + i])->apic_id;	111	return ((struct madt_l_apic *) madt_entries_index[madt_l_apic_entry_index + i])->apic_id;
111	}	112	}
112		113
113	int madt_cmp(void * a, void * b)	114	int madt_cmp(void * a, void * b)
114	{	115	{
115	return	116	return
116	(((struct madt_apic_header ) a)->type > ((struct madt_apic_header ) b)->type) ?	117	(((struct madt_apic_header ) a)->type > ((struct madt_apic_header ) b)->type) ?
117	1 :	118	1 :
118	((((struct madt_apic_header ) a)->type < ((struct madt_apic_header ) b)->type) ? -1 : 0);	119	((((struct madt_apic_header ) a)->type < ((struct madt_apic_header ) b)->type) ? -1 : 0);
119	}	120	}
120		121
121	void acpi_madt_parse(void)	122	void acpi_madt_parse(void)
122	{	123	{
123	struct madt_apic_header end = (struct madt_apic_header ) (((__u8 *) acpi_madt) + acpi_madt->header.length);	124	struct madt_apic_header end = (struct madt_apic_header ) (((__u8 *) acpi_madt) + acpi_madt->header.length);
124	struct madt_apic_header *h;	125	struct madt_apic_header *h;
125		126
126	l_apic = (__u32 *) (__native) acpi_madt->l_apic_address;	127	l_apic = (__u32 *) (__native) acpi_madt->l_apic_address;
127		128
128	/* calculate madt entries */	129	/* calculate madt entries */
129	for (h = &acpi_madt->apic_header[0]; h < end; h = (struct madt_apic_header ) (((__u8 ) h) + h->length)) {	130	for (h = &acpi_madt->apic_header[0]; h < end; h = (struct madt_apic_header ) (((__u8 ) h) + h->length)) {
130	madt_entries_index_cnt++;	131	madt_entries_index_cnt++;
131	}	132	}
132		133
133	/* create madt apic entries index array */	134	/* create madt apic entries index array */
134	madt_entries_index = (struct madt_apic_header * ) malloc(madt_entries_index_cnt sizeof(struct madt_apic_header * *));	135	madt_entries_index = (struct madt_apic_header * ) malloc(madt_entries_index_cnt sizeof(struct madt_apic_header * *));
135		136
136	__u32 index = 0;	137	__u32 index = 0;
137		138
138	for (h = &acpi_madt->apic_header[0]; h < end; h = (struct madt_apic_header ) (((__u8 ) h) + h->length)) {	139	for (h = &acpi_madt->apic_header[0]; h < end; h = (struct madt_apic_header ) (((__u8 ) h) + h->length)) {
139	madt_entries_index[index++] = h;	140	madt_entries_index[index++] = h;
140	}	141	}
141		142
142	/* Quicksort MADT index structure */	143	/* Quicksort MADT index structure */
143	qsort(madt_entries_index, madt_entries_index_cnt, sizeof(__address), &madt_cmp);	144	qsort(madt_entries_index, madt_entries_index_cnt, sizeof(__address), &madt_cmp);
144		145
145	/* Parse MADT entries */	146	/* Parse MADT entries */
146	for (index = 0; index < madt_entries_index_cnt - 1; index++) {	147	for (index = 0; index < madt_entries_index_cnt - 1; index++) {
147	h = madt_entries_index[index];	148	h = madt_entries_index[index];
148	switch (h->type) {	149	switch (h->type) {
149	case MADT_L_APIC:	150	case MADT_L_APIC:
150	madt_l_apic_entry((struct madt_l_apic *) h, index);	151	madt_l_apic_entry((struct madt_l_apic *) h, index);
151	break;	152	break;
152	case MADT_IO_APIC:	153	case MADT_IO_APIC:
153	madt_io_apic_entry((struct madt_io_apic *) h, index);	154	madt_io_apic_entry((struct madt_io_apic *) h, index);
154	break;	155	break;
155	case MADT_INTR_SRC_OVRD:	156	case MADT_INTR_SRC_OVRD:
156	case MADT_NMI_SRC:	157	case MADT_NMI_SRC:
157	case MADT_L_APIC_NMI:	158	case MADT_L_APIC_NMI:
158	case MADT_L_APIC_ADDR_OVRD:	159	case MADT_L_APIC_ADDR_OVRD:
159	case MADT_IO_SAPIC:	160	case MADT_IO_SAPIC:
160	case MADT_L_SAPIC:	161	case MADT_L_SAPIC:
161	case MADT_PLATFORM_INTR_SRC:	162	case MADT_PLATFORM_INTR_SRC:
162	printf("MADT: skipping %s entry (type=%d)\n", entry[h->type], h->type);	163	printf("MADT: skipping %s entry (type=%d)\n", entry[h->type], h->type);
163	break;	164	break;
164		165
165	default:	166	default:
166	if (h->type >= MADT_RESERVED_SKIP_BEGIN && h->type <= MADT_RESERVED_SKIP_END) {	167	if (h->type >= MADT_RESERVED_SKIP_BEGIN && h->type <= MADT_RESERVED_SKIP_END) {
167	printf("MADT: skipping reserved entry (type=%d)\n", h->type);	168	printf("MADT: skipping reserved entry (type=%d)\n", h->type);
168	}	169	}
169	if (h->type >= MADT_RESERVED_OEM_BEGIN) {	170	if (h->type >= MADT_RESERVED_OEM_BEGIN) {
170	printf("MADT: skipping OEM entry (type=%d)\n", h->type);	171	printf("MADT: skipping OEM entry (type=%d)\n", h->type);
171	}	172	}
172	break;	173	break;
173	}	174	}
174		175
175		176
176	}	177	}
177		178
178		179
179	if (madt_l_apic_entry_cnt)	180	if (cpu_count)
180	config.cpu_count = madt_l_apic_entry_cnt;	181	config.cpu_count = cpu_count;
181	}	182	}
182		183
183		184
184	void madt_l_apic_entry(struct madt_l_apic *la, __u32 index)	185	void madt_l_apic_entry(struct madt_l_apic *la, __u32 index)
185	{	186	{
186	if (!madt_l_apic_entry_cnt++) {	187	if (!madt_l_apic_entry_cnt++) {
187	madt_l_apic_entry_index = index;	188	madt_l_apic_entry_index = index;
188	}	189	}
189		190
190	if (!(la->flags & 0x1)) {	191	if (!(la->flags & 0x1)) {
191	/* Processor is unusable, skip it. */	192	/* Processor is unusable, skip it. */
192	return;	193	return;
193	}	194	}
194		195
-		196	cpu_count++;
195	apic_id_mask \|= 1<<la->apic_id;	197	apic_id_mask \|= 1<<la->apic_id;
196	}	198	}
197		199
198	void madt_io_apic_entry(struct madt_io_apic *ioa, __u32 index)	200	void madt_io_apic_entry(struct madt_io_apic *ioa, __u32 index)
199	{	201	{
200	if (!madt_io_apic_entry_cnt++) {	202	if (!madt_io_apic_entry_cnt++) {
201	/* remember index of the first io apic entry */	203	/* remember index of the first io apic entry */
202	madt_io_apic_entry_index = index;	204	madt_io_apic_entry_index = index;
203	io_apic = (__u32 *) (__native) ioa->io_apic_address;	205	io_apic = (__u32 *) (__native) ioa->io_apic_address;
204	} else {	206	} else {
205	/* currently not supported */	207	/* currently not supported */
206	return;	208	return;
207	}	209	}
208	}	210	}
209		211
210		212
211	#endif /* __SMP__ */	213	#endif /* __SMP__ */
212		214

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(root)/kernel/trunk/genarch/src/acpi/madt.c @ 1780 – Rev 349 → 370