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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 2009-2010, Intel Corporation.
* All rights reserved.
*/
#include <sys/types.h>
#include <sys/atomic.h>
#include <sys/sunddi.h>
#include <sys/sunndi.h>
#include <sys/acpi/acpi.h>
#include <sys/acpica.h>
#include <sys/acpidev.h>
#include <sys/acpidev_rsc.h>
#include <sys/acpidev_dr.h>
#include <sys/acpidev_impl.h>
static ACPI_STATUS acpidev_memory_probe(acpidev_walk_info_t *infop);
static acpidev_filter_result_t acpidev_memory_filter(
acpidev_walk_info_t *infop, char *devname, int maxlen);
static ACPI_STATUS acpidev_memory_init(acpidev_walk_info_t *infop);
/*
* Default class driver for ACPI memory objects.
*/
acpidev_class_t acpidev_class_memory = {
0, /* adc_refcnt */
ACPIDEV_CLASS_REV1, /* adc_version */
ACPIDEV_CLASS_ID_MEMORY, /* adc_class_id */
"ACPI memory", /* adc_class_name */
ACPIDEV_TYPE_MEMORY, /* adc_dev_type */
NULL, /* adc_private */
NULL, /* adc_pre_probe */
NULL, /* adc_post_probe */
acpidev_memory_probe, /* adc_probe */
acpidev_memory_filter, /* adc_filter */
acpidev_memory_init, /* adc_init */
NULL, /* adc_fini */
};
/*
* List of class drivers which will be called in order when handling
* children of ACPI memory objects.
*/
acpidev_class_list_t *acpidev_class_list_memory = NULL;
static char *acpidev_memory_device_ids[] = {
ACPIDEV_HID_MEMORY,
};
static char *acpidev_memory_uid_formats[] = {
"MEM%x-%x",
};
/* Filter rule table for memory objects. */
static acpidev_filter_rule_t acpidev_memory_filters[] = {
{ /* Ignore all memory objects under the ACPI root object */
NULL,
0,
ACPIDEV_FILTER_SKIP,
NULL,
1,
1,
NULL,
NULL,
},
{ /* Create node and scan child for all other memory objects */
NULL,
0,
ACPIDEV_FILTER_DEFAULT,
&acpidev_class_list_device,
2,
INT_MAX,
NULL,
ACPIDEV_NODE_NAME_MEMORY,
}
};
static ACPI_STATUS
acpidev_memory_probe(acpidev_walk_info_t *infop)
{
ACPI_STATUS rc = AE_OK;
int flags;
ASSERT(infop != NULL);
ASSERT(infop->awi_hdl != NULL);
ASSERT(infop->awi_info != NULL);
if (infop->awi_info->Type != ACPI_TYPE_DEVICE ||
acpidev_match_device_id(infop->awi_info,
ACPIDEV_ARRAY_PARAM(acpidev_memory_device_ids)) == 0) {
return (AE_OK);
}
flags = ACPIDEV_PROCESS_FLAG_SCAN;
switch (infop->awi_op_type) {
case ACPIDEV_OP_BOOT_PROBE:
if (acpica_get_devcfg_feature(ACPI_DEVCFG_MEMORY)) {
flags |= ACPIDEV_PROCESS_FLAG_CREATE;
acpidev_dr_check(infop);
}
break;
case ACPIDEV_OP_BOOT_REPROBE:
break;
case ACPIDEV_OP_HOTPLUG_PROBE:
if (acpica_get_devcfg_feature(ACPI_DEVCFG_MEMORY)) {
flags |= ACPIDEV_PROCESS_FLAG_CREATE |
ACPIDEV_PROCESS_FLAG_SYNCSTATUS |
ACPIDEV_PROCESS_FLAG_HOLDBRANCH;
}
break;
default:
ACPIDEV_DEBUG(CE_WARN, "!acpidev: unknown operation type %u "
"in acpidev_memory_probe.", infop->awi_op_type);
rc = AE_BAD_PARAMETER;
break;
}
if (rc == AE_OK) {
rc = acpidev_process_object(infop, flags);
}
if (ACPI_FAILURE(rc) && rc != AE_NOT_EXIST && rc != AE_ALREADY_EXISTS) {
cmn_err(CE_WARN,
"!acpidev: failed to process memory object %s.",
infop->awi_name);
} else {
rc = AE_OK;
}
return (rc);
}
static acpidev_filter_result_t
acpidev_memory_filter(acpidev_walk_info_t *infop, char *devname, int maxlen)
{
acpidev_filter_result_t res;
ASSERT(infop != NULL);
if (infop->awi_op_type == ACPIDEV_OP_BOOT_PROBE ||
infop->awi_op_type == ACPIDEV_OP_BOOT_REPROBE ||
infop->awi_op_type == ACPIDEV_OP_HOTPLUG_PROBE) {
res = acpidev_filter_device(infop, infop->awi_hdl,
ACPIDEV_ARRAY_PARAM(acpidev_memory_filters),
devname, maxlen);
} else {
res = ACPIDEV_FILTER_FAILED;
}
return (res);
}
static ACPI_STATUS
acpidev_memory_init(acpidev_walk_info_t *infop)
{
char *compatible[] = {
ACPIDEV_TYPE_MEMORY,
"mem"
};
ASSERT(infop != NULL);
ASSERT(infop->awi_hdl != NULL);
ASSERT(infop->awi_dip != NULL);
if (ACPI_FAILURE(acpidev_resource_process(infop, B_TRUE))) {
cmn_err(CE_WARN, "!acpidev: failed to process resources of "
"memory device %s.", infop->awi_name);
return (AE_ERROR);
}
if (ACPI_FAILURE(acpidev_set_compatible(infop,
ACPIDEV_ARRAY_PARAM(compatible)))) {
return (AE_ERROR);
}
if (ACPI_FAILURE(acpidev_set_unitaddr(infop,
ACPIDEV_ARRAY_PARAM(acpidev_memory_uid_formats), NULL))) {
return (AE_ERROR);
}
return (AE_OK);
}
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