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;
 
__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++;
    }
    printf("MADT: Found %d entries\n", 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 311	Rev 331
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		42
42	struct acpi_madt *acpi_madt = NULL;	43	struct acpi_madt *acpi_madt = NULL;
43		44
44	#ifdef __SMP__	45	#ifdef __SMP__
45		46
46	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);
47	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);
48		50
49	struct madt_l_apic *madt_l_apic_entries = NULL;	51	struct madt_l_apic *madt_l_apic_entries = NULL;
50	struct madt_io_apic *madt_io_apic_entries = NULL;	52	struct madt_io_apic *madt_io_apic_entries = NULL;
51		53
52	__u32 madt_l_apic_entry_index = 0;	54	__u32 madt_l_apic_entry_index = 0;
53	__u32 madt_io_apic_entry_index = 0;	55	__u32 madt_io_apic_entry_index = 0;
54	int madt_l_apic_entry_cnt = 0;	56	int madt_l_apic_entry_cnt = 0;
55	int madt_io_apic_entry_cnt = 0;	57	int madt_io_apic_entry_cnt = 0;
56		58
57	struct madt_apic_header * * madt_entries_index = NULL;	59	struct madt_apic_header * * madt_entries_index = NULL;
58	int madt_entries_index_cnt = 0;	60	int madt_entries_index_cnt = 0;
59		61
60	char *entry[] = {	62	char *entry[] = {
61	"L_APIC",	63	"L_APIC",
62	"IO_APIC",	64	"IO_APIC",
63	"INTR_SRC_OVRD",	65	"INTR_SRC_OVRD",
64	"NMI_SRC",	66	"NMI_SRC",
65	"L_APIC_NMI",	67	"L_APIC_NMI",
66	"L_APIC_ADDR_OVRD",	68	"L_APIC_ADDR_OVRD",
67	"IO_SAPIC",	69	"IO_SAPIC",
68	"L_SAPIC",	70	"L_SAPIC",
69	"PLATFORM_INTR_SRC"	71	"PLATFORM_INTR_SRC"
70	};	72	};
71		73
72	/*	74	/*
73	* ACPI MADT Implementation of SMP configuration interface.	75	* ACPI MADT Implementation of SMP configuration interface.
74	*/	76	*/
75	static count_t madt_cpu_count(void);	77	static count_t madt_cpu_count(void);
76	static bool madt_cpu_enabled(index_t i);	78	static bool madt_cpu_enabled(index_t i);
77	static bool madt_cpu_bootstrap(index_t i);	79	static bool madt_cpu_bootstrap(index_t i);
78	static __u8 madt_cpu_apic_id(index_t i);	80	static __u8 madt_cpu_apic_id(index_t i);
79		81
80	struct smp_config_operations madt_config_operations = {	82	struct smp_config_operations madt_config_operations = {
81	.cpu_count = madt_cpu_count,	83	.cpu_count = madt_cpu_count,
82	.cpu_enabled = madt_cpu_enabled,	84	.cpu_enabled = madt_cpu_enabled,
83	.cpu_bootstrap = madt_cpu_bootstrap,	85	.cpu_bootstrap = madt_cpu_bootstrap,
84	.cpu_apic_id = madt_cpu_apic_id	86	.cpu_apic_id = madt_cpu_apic_id
85	};	87	};
86		88
87	static count_t madt_cpu_count(void)	89	static count_t madt_cpu_count(void)
88	{	90	{
89	return madt_l_apic_entry_cnt;	91	return madt_l_apic_entry_cnt;
90	}	92	}
91		93
92	static bool madt_cpu_enabled(index_t i)	94	static bool madt_cpu_enabled(index_t i)
93	{	95	{
94	ASSERT(i < madt_l_apic_entry_cnt);	96	ASSERT(i < madt_l_apic_entry_cnt);
95	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;
96		98
97	}	99	}
98		100
99	static bool madt_cpu_bootstrap(index_t i)	101	static bool madt_cpu_bootstrap(index_t i)
100	{	102	{
101	ASSERT(i < madt_l_apic_entry_cnt);	103	ASSERT(i < madt_l_apic_entry_cnt);
102	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();
103	}	105	}
104		106
105	static __u8 madt_cpu_apic_id(index_t i)	107	static __u8 madt_cpu_apic_id(index_t i)
106	{	108	{
107	ASSERT(i < madt_l_apic_entry_cnt);	109	ASSERT(i < madt_l_apic_entry_cnt);
108	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;
109	}	111	}
110		112
-		113	int madt_cmp(void * a, void * b)
-		114	{
-		115	return
-		116	(((struct madt_apic_header ) a)->type > ((struct madt_apic_header ) b)->type) ?
-		117	1 :
-		118	((((struct madt_apic_header ) a)->type < ((struct madt_apic_header ) b)->type) ? -1 : 0);
-		119	}
-		120
111	void acpi_madt_parse(void)	121	void acpi_madt_parse(void)
112	{	122	{
-		123
-		124
113	struct madt_apic_header end = (struct madt_apic_header ) (((__u8 *) acpi_madt) + acpi_madt->header.length);	125	struct madt_apic_header end = (struct madt_apic_header ) (((__u8 *) acpi_madt) + acpi_madt->header.length);
114	struct madt_apic_header *h;	126	struct madt_apic_header *h;
115		127
116	l_apic = (__u32 *) (__native) acpi_madt->l_apic_address;	128	l_apic = (__u32 *) (__native) acpi_madt->l_apic_address;
117		129
118	/* calculate madt entries */	130	/* calculate madt entries */
119	for (h = &acpi_madt->apic_header[0]; h < end; h = (struct madt_apic_header ) (((__u8 ) h) + h->length)) {	131	for (h = &acpi_madt->apic_header[0]; h < end; h = (struct madt_apic_header ) (((__u8 ) h) + h->length)) {
120	madt_entries_index_cnt++;	132	madt_entries_index_cnt++;
121	}	133	}
122	printf("MADT: Found %d entries\n", madt_entries_index_cnt);	134	printf("MADT: Found %d entries\n", madt_entries_index_cnt);
123		135
124	/* create madt apic entries index array */	136	/* create madt apic entries index array */
125	madt_entries_index = (struct madt_apic_header * ) malloc(madt_entries_index_cnt sizeof(struct madt_apic_header * *));	137	madt_entries_index = (struct madt_apic_header * ) malloc(madt_entries_index_cnt sizeof(struct madt_apic_header * *));
126		138
127	__u32 index = 0;	139	__u32 index = 0;
128		140
129	for (h = &acpi_madt->apic_header[0]; h < end; h = (struct madt_apic_header ) (((__u8 ) h) + h->length)) {	141	for (h = &acpi_madt->apic_header[0]; h < end; h = (struct madt_apic_header ) (((__u8 ) h) + h->length)) {
130	madt_entries_index[index++] = h;	142	madt_entries_index[index++] = h;
131	}	143	}
132		144
133		145
134	/* Bublesort madt index. Quicksort later. */	146	/* Quicksort MADT index structure */
135	bool done = false;	-
136		-
137	while (!done) {	-
138	done = true;	-
139	for (index = 0; index < madt_entries_index_cnt - 1; index++) {	147	qsort(madt_entries_index, madt_entries_index_cnt, sizeof(__address), &madt_cmp);
140	if (madt_entries_index[index]->type > madt_entries_index[index + 1]->type) {	-
141	h = madt_entries_index[index];	-
142	madt_entries_index[index] = madt_entries_index[index + 1];	-
143	madt_entries_index[index + 1] = h;	-
144	done = false;	-
145	}	-
146	}	-
147		-
148	}	-
149		-
150		148
151	/* Parse MADT entries */	149	/* Parse MADT entries */
152	for (index = 0; index < madt_entries_index_cnt - 1; index++) {	150	for (index = 0; index < madt_entries_index_cnt - 1; index++) {
153	h = madt_entries_index[index];	151	h = madt_entries_index[index];
154	switch (h->type) {	152	switch (h->type) {
155	case MADT_L_APIC:	153	case MADT_L_APIC:
156	madt_l_apic_entry((struct madt_l_apic *) h, index);	154	madt_l_apic_entry((struct madt_l_apic *) h, index);
157	break;	155	break;
158	case MADT_IO_APIC:	156	case MADT_IO_APIC:
159	madt_io_apic_entry((struct madt_io_apic *) h, index);	157	madt_io_apic_entry((struct madt_io_apic *) h, index);
160	break;	158	break;
161	case MADT_INTR_SRC_OVRD:	159	case MADT_INTR_SRC_OVRD:
162	case MADT_NMI_SRC:	160	case MADT_NMI_SRC:
163	case MADT_L_APIC_NMI:	161	case MADT_L_APIC_NMI:
164	case MADT_L_APIC_ADDR_OVRD:	162	case MADT_L_APIC_ADDR_OVRD:
165	case MADT_IO_SAPIC:	163	case MADT_IO_SAPIC:
166	case MADT_L_SAPIC:	164	case MADT_L_SAPIC:
167	case MADT_PLATFORM_INTR_SRC:	165	case MADT_PLATFORM_INTR_SRC:
168	printf("MADT: skipping %s entry (type=%d)\n", entry[h->type], h->type);	166	printf("MADT: skipping %s entry (type=%d)\n", entry[h->type], h->type);
169	break;	167	break;
170		168
171	default:	169	default:
172	if (h->type >= MADT_RESERVED_SKIP_BEGIN && h->type <= MADT_RESERVED_SKIP_END) {	170	if (h->type >= MADT_RESERVED_SKIP_BEGIN && h->type <= MADT_RESERVED_SKIP_END) {
173	printf("MADT: skipping reserved entry (type=%d)\n", h->type);	171	printf("MADT: skipping reserved entry (type=%d)\n", h->type);
174	}	172	}
175	if (h->type >= MADT_RESERVED_OEM_BEGIN) {	173	if (h->type >= MADT_RESERVED_OEM_BEGIN) {
176	printf("MADT: skipping OEM entry (type=%d)\n", h->type);	174	printf("MADT: skipping OEM entry (type=%d)\n", h->type);
177	}	175	}
178	break;	176	break;
179	}	177	}
180		178
181		179
182	}	180	}
183		181
184		182
185	if (madt_l_apic_entry_cnt)	183	if (madt_l_apic_entry_cnt)
186	config.cpu_count = madt_l_apic_entry_cnt;	184	config.cpu_count = madt_l_apic_entry_cnt;
187	}	185	}
188		186
189		187
190	void madt_l_apic_entry(struct madt_l_apic *la, __u32 index)	188	void madt_l_apic_entry(struct madt_l_apic *la, __u32 index)
191	{	189	{
192	if (!madt_l_apic_entry_cnt++) {	190	if (!madt_l_apic_entry_cnt++) {
193	madt_l_apic_entry_index = index;	191	madt_l_apic_entry_index = index;
194	}	192	}
195		193
196	if (!(la->flags & 0x1)) {	194	if (!(la->flags & 0x1)) {
197	/* Processor is unusable, skip it. */	195	/* Processor is unusable, skip it. */
198	return;	196	return;
199	}	197	}
200		198
201	apic_id_mask \|= 1<<la->apic_id;	199	apic_id_mask \|= 1<<la->apic_id;
202	}	200	}
203		201
204	void madt_io_apic_entry(struct madt_io_apic *ioa, __u32 index)	202	void madt_io_apic_entry(struct madt_io_apic *ioa, __u32 index)
205	{	203	{
206	if (!madt_io_apic_entry_cnt++) {	204	if (!madt_io_apic_entry_cnt++) {
207	/* remember index of the first io apic entry */	205	/* remember index of the first io apic entry */
208	madt_io_apic_entry_index = index;	206	madt_io_apic_entry_index = index;
209	io_apic = (__u32 *) (__native) ioa->io_apic_address;	207	io_apic = (__u32 *) (__native) ioa->io_apic_address;
210	} else {	208	} else {
211	/* currently not supported */	209	/* currently not supported */
212	return;	210	return;
213	}	211	}
214	}	212	}
215		213
216		214
217	#endif /* __SMP__ */	215	#endif /* __SMP__ */
218		216

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(root)/kernel/trunk/genarch/src/acpi/madt.c @ 1735 – Rev 311 → 331