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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (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 2005 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* sun4v root nexus driver
*/
#include <sys/conf.h>
#include <sys/cpuvar.h>
#include <sys/ivintr.h>
#include <sys/intreg.h>
#include <sys/ddi_subrdefs.h>
#include <sys/sunndi.h>
#include <sys/async.h>
/* Useful debugging Stuff */
#include <sys/nexusdebug.h>
#define ROOTNEX_MAP_DEBUG 0x1
#define ROOTNEX_INTR_DEBUG 0x2
extern uint_t root_phys_addr_lo_mask;
extern int rootnex_name_child(dev_info_t *child, char *name, int namelen);
extern int rootnex_ctl_uninitchild(dev_info_t *dip);
uint_t root_phys_addr_hi_mask = 0xfffffff;
#define BUS_ADDRTYPE_CONFIG 0xc
#define BUSTYPE_TO_ADDRTYPE(bustype) ((bustype >> 28) & 0xf)
static char *bus_addrtype[16] = {
"m", NULL, NULL, NULL, NULL, NULL, NULL, NULL,
"i", NULL, NULL, NULL, "", NULL, NULL, NULL
};
/*
* config information
*/
int
rootnex_add_intr_impl(dev_info_t *dip, dev_info_t *rdip,
ddi_intr_handle_impl_t *hdlp);
int
rootnex_remove_intr_impl(dev_info_t *dip, dev_info_t *rdip,
ddi_intr_handle_impl_t *hdlp);
int
rootnex_get_intr_pri(dev_info_t *dip, dev_info_t *rdip,
ddi_intr_handle_impl_t *hdlp);
ddi_iblock_cookie_t rootnex_err_ibc;
/*
* rootnex_add_intr_impl:
*/
/*ARGSUSED*/
int
rootnex_add_intr_impl(dev_info_t *dip, dev_info_t *rdip,
ddi_intr_handle_impl_t *hdlp)
{
return (i_ddi_add_ivintr(hdlp));
}
/*
* rootnex_remove_intr_impl:
*/
/*ARGSUSED*/
int
rootnex_remove_intr_impl(dev_info_t *dip, dev_info_t *rdip,
ddi_intr_handle_impl_t *hdlp)
{
i_ddi_rem_ivintr(hdlp);
return (DDI_SUCCESS);
}
/*
* rootnex_get_intr_pri:
*/
/*ARGSUSED*/
int
rootnex_get_intr_pri(dev_info_t *dip, dev_info_t *rdip,
ddi_intr_handle_impl_t *hdlp)
{
return (hdlp->ih_pri);
}
int
rootnex_ctl_reportdev_impl(dev_info_t *dev)
{
struct regspec *rp;
char buf[80];
char *p = buf;
(void) sprintf(p, "%s%d at root", ddi_driver_name(dev),
ddi_get_instance(dev));
p += strlen(p);
if (sparc_pd_getnreg(dev) > 0) {
rp = sparc_pd_getreg(dev, 0);
(void) strcpy(p, ": ");
p += strlen(p);
(void) snprintf(p, sizeof (buf) - (buf - p),
"0x%x 0x%x", rp->regspec_bustype & root_phys_addr_hi_mask,
rp->regspec_addr & root_phys_addr_lo_mask);
p += strlen(p);
}
/*
* This is where we need to print out the interrupt specifications
* for the FFB device and any UPA add-on devices. Not sure how to
* do this yet?
*/
cmn_err(CE_CONT, "?%s\n", buf);
return (DDI_SUCCESS);
}
int
rootnex_name_child_impl(dev_info_t *child, char *name, int namelen)
{
struct ddi_parent_private_data *pdptr;
uint_t addrtype;
uint_t addrlow;
struct regspec *rp;
extern uint_t root_phys_addr_lo_mask;
extern void make_ddi_ppd(
dev_info_t *, struct ddi_parent_private_data **);
/*
* Fill in parent-private data and this function returns to us
* an indication if it used "registers" to fill in the data.
*/
if (ddi_get_parent_data(child) == NULL) {
make_ddi_ppd(child, &pdptr);
ddi_set_parent_data(child, pdptr);
}
/*
* No reg property, return null string as address (e.g. pseudo)
*/
name[0] = '\0';
if (sparc_pd_getnreg(child) == 0) {
return (DDI_SUCCESS);
}
rp = sparc_pd_getreg(child, 0);
ASSERT(rp != NULL);
/*
* Name node on behalf of child nexus.
*/
if (ddi_get_parent(child) != ddi_root_node()) {
(void) snprintf(name, namelen, "%x,%x",
rp->regspec_bustype, rp->regspec_addr);
return (DDI_SUCCESS);
}
/*
* On sun4v, the 'name' of a root node device depends upon
* the first reg property, which contains two 32-bit address
* cells as follows:
*
* bit# 63-32: ssss.hhhh.hhhh.hhhh.hhhh.hhhh.hhhh.hhhh
* bit# 31-00: llll.llll.llll.llll.llll.llll.llll.llll
*
* where 'ssss' defines the address type and naming convention
* as follows:
*
* 0000 -> cacheable address space
* foo@m<high-addr>[,<low-addr>]
* 1000 -> non-cacheable IO address space
* foo@i<high-addr>[,<low-addr>]
* 1100 -> non-cacheable configuration address space
* foo@<high-addr>
*
* where <hish-addr> is hex-ASCII reprensation of the hh...hh
* bits and <low-addr> is hex-ASCII represenation of the
* ll...ll bits.
*
* Note that the leading zeros are omitted here. Also, if the
* <low-addr> bits are zero, then the trailing component is
* omitted as well.
*/
addrtype = BUSTYPE_TO_ADDRTYPE(rp->regspec_bustype);
addrlow = rp->regspec_addr & root_phys_addr_lo_mask;
if (bus_addrtype[addrtype] == NULL)
cmn_err(CE_PANIC, "rootnex: wrong bustype: %x child: %s\n",
rp->regspec_bustype, ddi_node_name(child));
else if (addrtype == BUS_ADDRTYPE_CONFIG || addrlow == 0)
(void) snprintf(name, namelen, "%s%x",
bus_addrtype[addrtype],
rp->regspec_bustype & root_phys_addr_hi_mask);
else
(void) snprintf(name, namelen, "%s%x,%x",
bus_addrtype[addrtype],
rp->regspec_bustype & root_phys_addr_hi_mask, addrlow);
return (DDI_SUCCESS);
}
int
rootnex_ctl_initchild_impl(dev_info_t *dip)
{
struct ddi_parent_private_data *pd;
char name[MAXNAMELEN];
extern struct ddi_parent_private_data *init_regspec_64(dev_info_t *dip);
/* Name the child */
(void) rootnex_name_child(dip, name, MAXNAMELEN);
ddi_set_name_addr(dip, name);
/*
* Try to merge .conf node. If merge is successful, return
* DDI_FAILURE to allow caller to remove this node.
*/
if (ndi_dev_is_persistent_node(dip) == 0 &&
(ndi_merge_node(dip, rootnex_name_child) == DDI_SUCCESS)) {
(void) rootnex_ctl_uninitchild(dip);
return (DDI_FAILURE);
}
/*
* If there are no "reg"s in the child node, return.
*/
pd = init_regspec_64(dip);
if ((pd == NULL) || (pd->par_nreg == 0))
return (DDI_SUCCESS);
return (DDI_SUCCESS);
}
/*ARGSUSED*/
void
rootnex_ctl_uninitchild_impl(dev_info_t *dip)
{
}
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