int
mp_find_cpu(dev_info_t *dip, void *arg)
{
extern int get_portid_ddi(dev_info_t *, dev_info_t **);
struct mp_find_cpu_arg *target = (struct mp_find_cpu_arg *)arg;
char *type;
int rv = DDI_WALK_CONTINUE;
int cpuid;
if (ddi_prop_lookup_string(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS,
"device_type", &type))
return (DDI_WALK_CONTINUE);
if (strcmp(type, "cpu") != 0)
goto out;
cpuid = ddi_prop_get_int(DDI_DEV_T_ANY, dip,
DDI_PROP_DONTPASS, "cpuid", -1);
if (cpuid == -1)
cpuid = get_portid_ddi(dip, NULL);
if (cpuid != target->cpuid)
goto out;
/* Found it */
rv = DDI_WALK_TERMINATE;
target->dip = dip;
out:
ddi_prop_free(type);
return (rv);
}
int
mp_find_cpu(dev_info_t *dip, void *arg)
{
struct mp_find_cpu_arg *target = (struct mp_find_cpu_arg *)arg;
char *type;
int rv = DDI_WALK_CONTINUE;
int cpuid;
if (ddi_prop_lookup_string(DDI_DEV_T_ANY, dip,
DDI_PROP_DONTPASS, "device_type", &type))
return (DDI_WALK_CONTINUE);
if (strcmp(type, "cpu") != 0)
goto out;
cpuid = ddi_prop_get_int(DDI_DEV_T_ANY, dip,
DDI_PROP_DONTPASS, "reg", -1);
if (cpuid == -1) {
cmn_err(CE_PANIC, "reg prop not found in cpu node");
}
cpuid = PROM_CFGHDL_TO_CPUID(cpuid);
if (cpuid != target->cpuid)
goto out;
/* Found it */
rv = DDI_WALK_TERMINATE;
target->dip = dip;
out:
ddi_prop_free(type);
return (rv);
}
int
_init(void)
{
int err;
char tty_irq_param[9] = "ttyX-irq";
char *tty_irq;
int i;
if ((err = mod_install(&modlinkage)) != 0)
return (err);
/* Check if any tty irqs are overridden by eeprom config */
for (i = 0; i < num_BIOS_serial; i++) {
tty_irq_param[3] = 'a' + i;
if (ddi_prop_lookup_string(DDI_DEV_T_ANY, ddi_root_node(),
DDI_PROP_DONTPASS, tty_irq_param, &tty_irq)
== DDI_PROP_SUCCESS) {
long data;
if (ddi_strtol(tty_irq, NULL, 0, &data) == 0) {
asy_intrs[i] = (int)data;
asy_intr_override |= 1<<i;
}
ddi_prop_free(tty_irq);
}
}
impl_bus_add_probe(isa_enumerate);
return (0);
}
char *
spa_get_bootprop(char *propname)
{
char *value;
if (ddi_prop_lookup_string(DDI_DEV_T_ANY, ddi_root_node(),
DDI_PROP_DONTPASS, propname, &value) != DDI_SUCCESS)
return (NULL);
return (value);
}
/*ARGSUSED*/
static int
fipe_search_ioat_dev(dev_info_t *dip, void *arg)
{
char *unit;
struct fipe_pci_ioat_id *id;
int i, max, venid, devid, subvenid, subsysid;
/* Query PCI id properties. */
venid = ddi_prop_get_int(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS,
"vendor-id", 0xffffffff);
if (venid == 0xffffffff) {
return (DDI_WALK_CONTINUE);
}
devid = ddi_prop_get_int(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS,
"device-id", 0xffffffff);
if (devid == 0xffffffff) {
return (DDI_WALK_CONTINUE);
}
subvenid = ddi_prop_get_int(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS,
"subsystem-vendor-id", 0xffffffff);
if (subvenid == 0xffffffff) {
return (DDI_WALK_CONTINUE);
}
subsysid = ddi_prop_get_int(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS,
"subsystem-id", 0xffffffff);
if (subvenid == 0xffffffff) {
return (DDI_WALK_CONTINUE);
}
if (ddi_prop_lookup_string(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS,
"unit-address", &unit) != DDI_PROP_SUCCESS) {
return (DDI_WALK_CONTINUE);
}
max = sizeof (fipe_pci_ioat_ids) / sizeof (fipe_pci_ioat_ids[0]);
for (i = 0; i < max; i++) {
id = &fipe_pci_ioat_ids[i];
if ((id->venid == 0xffffu || id->venid == venid) &&
(id->devid == 0xffffu || id->devid == devid) &&
(id->subvenid == 0xffffu || id->subvenid == subvenid) &&
(id->subsysid == 0xffffu || id->subsysid == subsysid) &&
(id->unitaddr == NULL || strcmp(id->unitaddr, unit) == 0)) {
break;
}
}
ddi_prop_free(unit);
if (i >= max) {
return (DDI_WALK_CONTINUE);
}
/* Found IOAT device, hold one reference count. */
ndi_hold_devi(dip);
fipe_ioat_ctrl.ioat_dev_info = dip;
return (DDI_WALK_TERMINATE);
}
/*
* Check's if this child is a PCI device.
* Child is a PCI device if:
* parent has a dev_type of "pci"
* -and-
* child does not have a dev_type of "pciex"
*
* If the parent is not of dev_type "pci", then assume it is "pciex" and all
* children should support using PCIe style MMCFG access.
*
* If parent's dev_type is "pci" and child is "pciex", then also enable using
* PCIe style MMCFG access. This covers the case where NPE is "pci" and a PCIe
* RP is beneath.
*/
boolean_t
npe_child_is_pci(dev_info_t *dip) {
char *dev_type;
boolean_t parent_is_pci, child_is_pciex;
if (ddi_prop_lookup_string(DDI_DEV_T_ANY, ddi_get_parent(dip),
DDI_PROP_DONTPASS, "device_type", &dev_type) ==
DDI_PROP_SUCCESS) {
parent_is_pci = (strcmp(dev_type, "pci") == 0);
ddi_prop_free(dev_type);
} else {
parent_is_pci = B_FALSE;
}
if (ddi_prop_lookup_string(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS,
"device_type", &dev_type) == DDI_PROP_SUCCESS) {
child_is_pciex = (strcmp(dev_type, "pciex") == 0);
ddi_prop_free(dev_type);
} else {
child_is_pciex = B_FALSE;
}
return (parent_is_pci && !child_is_pciex);
}
/*
* sets master_ops_debug flag from propertyu passed by the boot
*/
static void
set_master_ops_debug_flags()
{
char *prop;
long flags;
if (ddi_prop_lookup_string(DDI_DEV_T_ANY, ddi_root_node(),
DDI_PROP_DONTPASS, "master_ops_debug", &prop) == DDI_PROP_SUCCESS) {
long data;
if (ddi_strtol(prop, NULL, 0, &data) == 0) {
master_ops_debug = (unsigned long)data;
e_ddi_prop_remove(DDI_DEV_T_NONE, ddi_root_node(),
"master_ops_debug");
e_ddi_prop_update_int(DDI_DEV_T_NONE, ddi_root_node(),
"master_ops_debug", data);
}
ddi_prop_free(prop);
}
}
static int
name_child(dev_info_t *child, char *name, int namelen)
{
char *unitaddr;
ddi_set_parent_data(child, NULL);
name[0] = '\0';
if (ddi_prop_lookup_string(DDI_DEV_T_ANY, child, DDI_PROP_DONTPASS,
ACPIDEV_PROP_NAME_UNIT_ADDR, &unitaddr) == DDI_SUCCESS) {
(void) strlcpy(name, unitaddr, namelen);
ddi_prop_free(unitaddr);
} else {
ACPINEX_DEBUG(CE_NOTE, "!acpinex: failed to lookup child "
"unit-address prop for %p.", (void *)child);
}
return (DDI_SUCCESS);
}
/*
* Get boot property value for fastreboot_onpanic.
*
* NOTE: If fastreboot_onpanic is set to non-zero in /etc/system,
* new setting passed in via "-B fastreboot_onpanic" is ignored.
* This order of precedence is to enable developers debugging panics
* that occur early in boot to utilize Fast Reboot on panic.
*/
static void
fastboot_get_bootprop(void)
{
int val = 0xaa, len, ret;
dev_info_t *devi;
char *propstr = NULL;
devi = ddi_root_node();
ret = ddi_prop_lookup_string(DDI_DEV_T_ANY, devi, DDI_PROP_DONTPASS,
FASTREBOOT_ONPANIC, &propstr);
if (ret == DDI_PROP_SUCCESS) {
if (FASTREBOOT_ONPANIC_NOTSET(propstr))
val = 0;
else if (FASTREBOOT_ONPANIC_ISSET(propstr))
val = UA_FASTREBOOT_ONPANIC;
/*
* Only set fastreboot_onpanic to the value passed in
* if it's not already set to non-zero, and the value
* has indeed been passed in via command line.
*/
if (!fastreboot_onpanic && val != 0xaa)
fastreboot_onpanic = val;
ddi_prop_free(propstr);
} else if (ret != DDI_PROP_NOT_FOUND && ret != DDI_PROP_UNDEFINED) {
cmn_err(CE_NOTE, "!%s value is invalid, will be ignored",
FASTREBOOT_ONPANIC);
}
len = sizeof (fastreboot_onpanic_cmdline);
ret = ddi_getlongprop_buf(DDI_DEV_T_ANY, devi, DDI_PROP_DONTPASS,
FASTREBOOT_ONPANIC_CMDLINE, fastreboot_onpanic_cmdline, &len);
if (ret == DDI_PROP_BUF_TOO_SMALL)
cmn_err(CE_NOTE, "!%s value is too long, will be ignored",
FASTREBOOT_ONPANIC_CMDLINE);
}
static int
console_type()
{
static int boot_console = CONS_INVALID;
char *cons;
dev_info_t *root;
if (boot_console != CONS_INVALID)
return (boot_console);
#if defined(__xpv)
if (!DOMAIN_IS_INITDOMAIN(xen_info) || bcons_hypervisor_redirect()) {
boot_console = CONS_HYPERVISOR;
return (boot_console);
}
#endif /* __xpv */
/*
* console is defined by "console" property, with
* fallback on the old "input-device" property.
* If "input-device" is not defined either, also check "output-device".
*/
boot_console = CONS_SCREEN; /* default is screen/kb */
root = ddi_root_node();
if ((ddi_prop_lookup_string(DDI_DEV_T_ANY, root,
DDI_PROP_DONTPASS, "console", &cons) == DDI_SUCCESS) ||
(ddi_prop_lookup_string(DDI_DEV_T_ANY, root,
DDI_PROP_DONTPASS, "input-device", &cons) == DDI_SUCCESS) ||
(ddi_prop_lookup_string(DDI_DEV_T_ANY, root,
DDI_PROP_DONTPASS, "output-device", &cons) == DDI_SUCCESS)) {
if (strcmp(cons, "ttya") == 0) {
boot_console = CONS_TTYA;
} else if (strcmp(cons, "ttyb") == 0) {
boot_console = CONS_TTYB;
} else if (strcmp(cons, "usb-serial") == 0) {
(void) i_ddi_attach_hw_nodes("ehci");
(void) i_ddi_attach_hw_nodes("uhci");
(void) i_ddi_attach_hw_nodes("ohci");
/*
* USB device enumerate asynchronously.
* Wait 2 seconds for USB serial devices to attach.
*/
delay(drv_usectohz(2000000));
boot_console = CONS_USBSER;
#if defined(__xpv)
} else if (strcmp(cons, "hypervisor") == 0) {
boot_console = CONS_HYPERVISOR;
#endif /* __xpv */
}
ddi_prop_free(cons);
}
/*
* If the console is configured to use a framebuffer but none
* could be found, fallback to "ttya" since it's likely to exist
* and it matches longstanding behavior on SPARC.
*/
if (boot_console == CONS_SCREEN && plat_fbpath() == NULL)
boot_console = CONS_TTYA;
return (boot_console);
}
/*
* The VGA device could be under a subtractive PCI bridge on some systems.
* Though the PCI_BCNF_BCNTRL_VGA_ENABLE bit is not set on such subtractive
* PCI bridge, the subtractive PCI bridge can forward VGA access if no other
* agent claims the access.
* The vga_enable element in param acts as a flag, if not set, ignore the
* checking for the PCI_BCNF_BCNTRL_VGA_ENABLE bit of the PCI bridge during
* the search.
*/
static int
find_fb_dev(dev_info_t *dip, void *param)
{
struct find_fb_dev_param *p = param;
char *dev_type;
dev_info_t *pdip;
char *parent_type;
if (dip == ddi_root_node())
return (DDI_WALK_CONTINUE);
if (ddi_prop_lookup_string(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS,
"device_type", &dev_type) != DDI_SUCCESS)
return (DDI_WALK_PRUNECHILD);
if ((strcmp(dev_type, "isa") == 0) || (strcmp(dev_type, "eisa") == 0)) {
ddi_prop_free(dev_type);
return (DDI_WALK_CONTINUE);
}
if ((strcmp(dev_type, "pci") == 0) ||
(strcmp(dev_type, "pciex") == 0)) {
ddi_acc_handle_t pci_conf;
uint16_t data16;
char *nodename;
ddi_prop_free(dev_type);
if (!p->vga_enable)
return (DDI_WALK_CONTINUE);
nodename = ddi_node_name(dip);
/*
* If the node is not a PCI-to-PCI bridge, continue traversing
* (it could be the root node), otherwise, check for the
* VGAEnable bit to be set in the Bridge Control Register.
*/
if (strcmp(nodename, "pci") == 0) {
if (is_pci_bridge(dip) == B_FALSE)
return (DDI_WALK_CONTINUE);
}
if (i_ddi_attach_node_hierarchy(dip) != DDI_SUCCESS)
return (DDI_WALK_PRUNECHILD);
if (pci_config_setup(dip, &pci_conf) != DDI_SUCCESS)
return (DDI_WALK_PRUNECHILD);
data16 = pci_config_get16(pci_conf, PCI_BCNF_BCNTRL);
pci_config_teardown(&pci_conf);
if (data16 & PCI_BCNF_BCNTRL_VGA_ENABLE)
return (DDI_WALK_CONTINUE);
return (DDI_WALK_PRUNECHILD);
}
if (strcmp(dev_type, "display") != 0) {
ddi_prop_free(dev_type);
return (DDI_WALK_CONTINUE);
}
ddi_prop_free(dev_type);
if ((pdip = ddi_get_parent(dip)) == NULL)
return (DDI_WALK_PRUNECHILD);
if (ddi_prop_lookup_string(DDI_DEV_T_ANY, pdip, DDI_PROP_DONTPASS,
"device_type", &parent_type) != DDI_SUCCESS)
return (DDI_WALK_PRUNECHILD);
if ((strcmp(parent_type, "isa") == 0) ||
(strcmp(parent_type, "eisa") == 0)) {
p->found_dip = dip;
ddi_prop_free(parent_type);
return (DDI_WALK_TERMINATE);
}
if ((strcmp(parent_type, "pci") == 0) ||
(strcmp(parent_type, "pciex") == 0)) {
ddi_acc_handle_t pci_conf;
uint16_t data16;
ddi_prop_free(parent_type);
if (i_ddi_attach_node_hierarchy(dip) != DDI_SUCCESS)
return (DDI_WALK_PRUNECHILD);
if (pci_config_setup(dip, &pci_conf) != DDI_SUCCESS)
return (DDI_WALK_PRUNECHILD);
data16 = pci_config_get16(pci_conf, PCI_CONF_COMM);
pci_config_teardown(&pci_conf);
if (!(data16 & PCI_COMM_IO))
return (DDI_WALK_PRUNECHILD);
p->found_dip = dip;
return (DDI_WALK_TERMINATE);
}
ddi_prop_free(parent_type);
return (DDI_WALK_PRUNECHILD);
}
static int
zfs_vfs_mount(struct mount *mp, vnode_t devvp, user_addr_t data, vfs_context_t context)
{
char *osname = NULL;
size_t osnamelen = 0;
int error = 0;
int canwrite;
/*
* Get the objset name (the "special" mount argument).
* The filesystem that we mount as root is defined in the
* "zfs-bootfs" property.
*/
if (data) {
user_addr_t fspec = USER_ADDR_NULL;
#ifndef __APPLE__
if (ddi_prop_lookup_string(DDI_DEV_T_ANY, ddi_root_node(),
DDI_PROP_DONTPASS, "zfs-bootfs", &zfs_bootpath) !=
DDI_SUCCESS)
return (EIO);
error = parse_bootpath(zfs_bootpath, rootfs.bo_name);
ddi_prop_free(zfs_bootpath);
#endif
osname = kmem_alloc(MAXPATHLEN, KM_SLEEP);
if (vfs_context_is64bit(context)) {
if ( (error = copyin(data, (caddr_t)&fspec, sizeof(fspec))) )
goto out;
} else {
#ifdef ZFS_LEOPARD_ONLY
char *tmp;
#else
user32_addr_t tmp;
#endif
if ( (error = copyin(data, (caddr_t)&tmp, sizeof(tmp))) )
goto out;
/* munge into LP64 addr */
fspec = CAST_USER_ADDR_T(tmp);
}
if ( (error = copyinstr(fspec, osname, MAXPATHLEN, &osnamelen)) )
goto out;
}
#if 0
if (mvp->v_type != VDIR)
return (ENOTDIR);
mutex_enter(&mvp->v_lock);
if ((uap->flags & MS_REMOUNT) == 0 &&
(uap->flags & MS_OVERLAY) == 0 &&
(mvp->v_count != 1 || (mvp->v_flag & VROOT))) {
mutex_exit(&mvp->v_lock);
return (EBUSY);
}
mutex_exit(&mvp->v_lock);
/*
* ZFS does not support passing unparsed data in via MS_DATA.
* Users should use the MS_OPTIONSTR interface; this means
* that all option parsing is already done and the options struct
* can be interrogated.
*/
if ((uap->flags & MS_DATA) && uap->datalen > 0)
return (EINVAL);
/*
* Get the objset name (the "special" mount argument).
*/
if (error = pn_get(uap->spec, fromspace, &spn))
return (error);
osname = spn.pn_path;
#endif
/*
* Check for mount privilege?
*
* If we don't have privilege then see if
* we have local permission to allow it
*/
#ifndef __APPLE__
error = secpolicy_fs_mount(cr, mvp, vfsp);
if (error) {
error = dsl_deleg_access(osname, ZFS_DELEG_PERM_MOUNT, cr);
if (error == 0) {
vattr_t vattr;
/*
* Make sure user is the owner of the mount point
* or has sufficient privileges.
*/
vattr.va_mask = AT_UID;
if (error = VOP_GETATTR(mvp, &vattr, 0, cr)) {
goto out;
}
if (error = secpolicy_vnode_owner(cr, vattr.va_uid)) {
goto out;
}
if (error = VOP_ACCESS(mvp, VWRITE, 0, cr)) {
goto out;
}
secpolicy_fs_mount_clearopts(cr, vfsp);
} else {
goto out;
}
}
#endif
error = zfs_domount(mp, 0, osname, context);
if (error)
printf("zfs_vfs_mount: error %d\n", error);
if (error == 0) {
zfsvfs_t *zfsvfs = NULL;
/* Make the Finder treat sub file systems just like a folder */
if (strpbrk(osname, "/"))
vfs_setflags(mp, (u_int64_t)((unsigned int)MNT_DONTBROWSE));
/* Indicate to VFS that we support ACLs. */
vfs_setextendedsecurity(mp);
/* Advisory locking should be handled at the VFS layer */
vfs_setlocklocal(mp);
/*
* Mac OS X needs a file system modify time
*
* We use the mtime of the "com.apple.system.mtime"
* extended attribute, which is associated with the
* file system root directory.
*
* Here we need to take a ref on z_mtime_vp to keep it around.
* If the attribute isn't there, attempt to create it.
*/
zfsvfs = vfs_fsprivate(mp);
if (zfsvfs->z_mtime_vp == NULL) {
struct vnode * rvp;
struct vnode *xdvp = NULLVP;
struct vnode *xvp = NULLVP;
znode_t *rootzp;
timestruc_t modify_time;
cred_t *cr;
timestruc_t now;
int flag;
int result;
if (zfs_zget(zfsvfs, zfsvfs->z_root, &rootzp) != 0) {
goto out;
}
rvp = ZTOV(rootzp);
cr = (cred_t *)vfs_context_ucred(context);
/* Grab the hidden attribute directory vnode. */
result = zfs_get_xattrdir(rootzp, &xdvp, cr, CREATE_XATTR_DIR);
vnode_put(rvp); /* all done with root vnode */
rvp = NULL;
if (result) {
goto out;
}
/*
* HACK - workaround missing vnode_setnoflush() KPI...
*
* We tag zfsvfs so that zfs_attach_vnode() can then set
* vnfs_marksystem when the vnode gets created.
*/
zfsvfs->z_last_unmount_time = 0xBADC0DE;
zfsvfs->z_last_mtime_synced = VTOZ(xdvp)->z_id;
flag = vfs_isrdonly(mp) ? 0 : ZEXISTS;
/* Lookup or create the named attribute. */
if ( zfs_obtain_xattr(VTOZ(xdvp), ZFS_MTIME_XATTR,
S_IRUSR | S_IWUSR, cr, &xvp,
flag) ) {
zfsvfs->z_last_unmount_time = 0;
zfsvfs->z_last_mtime_synced = 0;
vnode_put(xdvp);
goto out;
}
gethrestime(&now);
ZFS_TIME_ENCODE(&now, VTOZ(xvp)->z_phys->zp_mtime);
vnode_put(xdvp);
vnode_ref(xvp);
zfsvfs->z_mtime_vp = xvp;
ZFS_TIME_DECODE(&modify_time, VTOZ(xvp)->z_phys->zp_mtime);
zfsvfs->z_last_unmount_time = modify_time.tv_sec;
zfsvfs->z_last_mtime_synced = modify_time.tv_sec;
/*
* Keep this referenced vnode from impeding an unmount.
*
* XXX vnode_setnoflush() is MIA from KPI (see workaround above).
*/
#if 0
vnode_setnoflush(xvp);
#endif
vnode_put(xvp);
}
}
out:
if (osname) {
kmem_free(osname, MAXPATHLEN);
}
return (error);
}
/*ARGSUSED*/
static int
ppb_attach(dev_info_t *devi, ddi_attach_cmd_t cmd)
{
dev_info_t *root = ddi_root_node();
int instance;
ppb_devstate_t *ppb;
dev_info_t *pdip;
ddi_acc_handle_t config_handle;
char *bus;
int ret;
switch (cmd) {
case DDI_ATTACH:
/*
* Make sure the "device_type" property exists.
*/
(void) ddi_prop_update_string(DDI_DEV_T_NONE, devi,
"device_type", "pci");
/*
* Allocate and get soft state structure.
*/
instance = ddi_get_instance(devi);
if (ddi_soft_state_zalloc(ppb_state, instance) != DDI_SUCCESS)
return (DDI_FAILURE);
ppb = ddi_get_soft_state(ppb_state, instance);
ppb->dip = devi;
/*
* don't enable ereports if immediate child of npe
*/
if (strcmp(ddi_driver_name(ddi_get_parent(devi)), "npe") == 0)
ppb->ppb_fmcap = DDI_FM_ERRCB_CAPABLE |
DDI_FM_ACCCHK_CAPABLE | DDI_FM_DMACHK_CAPABLE;
else
ppb->ppb_fmcap = DDI_FM_EREPORT_CAPABLE |
DDI_FM_ERRCB_CAPABLE | DDI_FM_ACCCHK_CAPABLE |
DDI_FM_DMACHK_CAPABLE;
ddi_fm_init(devi, &ppb->ppb_fmcap, &ppb->ppb_fm_ibc);
mutex_init(&ppb->ppb_mutex, NULL, MUTEX_DRIVER, NULL);
mutex_init(&ppb->ppb_err_mutex, NULL, MUTEX_DRIVER,
(void *)ppb->ppb_fm_ibc);
mutex_init(&ppb->ppb_peek_poke_mutex, NULL, MUTEX_DRIVER,
(void *)ppb->ppb_fm_ibc);
if (ppb->ppb_fmcap & (DDI_FM_ERRCB_CAPABLE |
DDI_FM_EREPORT_CAPABLE))
pci_ereport_setup(devi);
if (ppb->ppb_fmcap & DDI_FM_ERRCB_CAPABLE)
ddi_fm_handler_register(devi, ppb_fm_callback, NULL);
if (pci_config_setup(devi, &config_handle) != DDI_SUCCESS) {
if (ppb->ppb_fmcap & DDI_FM_ERRCB_CAPABLE)
ddi_fm_handler_unregister(devi);
if (ppb->ppb_fmcap & (DDI_FM_ERRCB_CAPABLE |
DDI_FM_EREPORT_CAPABLE))
pci_ereport_teardown(devi);
ddi_fm_fini(devi);
ddi_soft_state_free(ppb_state, instance);
return (DDI_FAILURE);
}
ppb->parent_bus = PCIE_PCIECAP_DEV_TYPE_PCI_PSEUDO;
for (pdip = ddi_get_parent(devi); pdip && (pdip != root) &&
(ppb->parent_bus != PCIE_PCIECAP_DEV_TYPE_PCIE_DEV);
pdip = ddi_get_parent(pdip)) {
if (ddi_prop_lookup_string(DDI_DEV_T_ANY, pdip,
DDI_PROP_DONTPASS, "device_type", &bus) !=
DDI_PROP_SUCCESS)
break;
if (strcmp(bus, "pciex") == 0)
ppb->parent_bus =
PCIE_PCIECAP_DEV_TYPE_PCIE_DEV;
ddi_prop_free(bus);
}
if (ppb_support_ht_msimap == 1)
(void) ppb_ht_msimap_set(config_handle,
HT_MSIMAP_ENABLE);
else if (ppb_support_ht_msimap == -1)
(void) ppb_ht_msimap_set(config_handle,
HT_MSIMAP_DISABLE);
pci_config_teardown(&config_handle);
/*
* Initialize hotplug support on this bus.
*/
if (ppb->parent_bus == PCIE_PCIECAP_DEV_TYPE_PCIE_DEV)
ret = pcie_init(devi, NULL);
else
ret = pcihp_init(devi);
if (ret != DDI_SUCCESS) {
cmn_err(CE_WARN,
"pci: Failed to setup hotplug framework");
(void) ppb_detach(devi, DDI_DETACH);
return (ret);
}
ddi_report_dev(devi);
return (DDI_SUCCESS);
case DDI_RESUME:
/*
* Get the soft state structure for the bridge.
*/
ppb = ddi_get_soft_state(ppb_state, ddi_get_instance(devi));
ppb_restore_config_regs(ppb);
return (DDI_SUCCESS);
default:
break;
}
return (DDI_FAILURE);
}
/* register callback to mdeg */
static int
i_vldc_mdeg_register(vldc_t *vldcp)
{
mdeg_prop_spec_t *pspecp;
mdeg_node_spec_t *inst_specp;
mdeg_handle_t mdeg_hdl;
size_t templatesz;
int inst;
char *name;
size_t namesz;
char *nameprop;
int rv;
/* get the unique vldc instance assigned by the LDom manager */
inst = ddi_prop_get_int(DDI_DEV_T_ANY, vldcp->dip,
DDI_PROP_DONTPASS, "reg", -1);
if (inst == -1) {
cmn_err(CE_NOTE, "?vldc%d has no 'reg' property",
ddi_get_instance(vldcp->dip));
return (DDI_FAILURE);
}
/* get the name of the vldc instance */
rv = ddi_prop_lookup_string(DDI_DEV_T_ANY, vldcp->dip,
DDI_PROP_DONTPASS, "name", &nameprop);
if (rv != DDI_PROP_SUCCESS) {
cmn_err(CE_NOTE, "?vldc%d has no 'name' property",
ddi_get_instance(vldcp->dip));
return (DDI_FAILURE);
}
D1("i_vldc_mdeg_register: name=%s, instance=%d\n", nameprop, inst);
/*
* Allocate and initialize a per-instance copy
* of the global property spec array that will
* uniquely identify this vldc instance.
*/
templatesz = sizeof (vldc_prop_template);
pspecp = kmem_alloc(templatesz, KM_SLEEP);
bcopy(vldc_prop_template, pspecp, templatesz);
/* copy in the name property */
namesz = strlen(nameprop) + 1;
name = kmem_alloc(namesz, KM_SLEEP);
bcopy(nameprop, name, namesz);
VLDC_SET_MDEG_PROP_NAME(pspecp, name);
ddi_prop_free(nameprop);
/* copy in the instance property */
VLDC_SET_MDEG_PROP_INST(pspecp, inst);
/* initialize the complete prop spec structure */
inst_specp = kmem_alloc(sizeof (mdeg_node_spec_t), KM_SLEEP);
inst_specp->namep = "virtual-device";
inst_specp->specp = pspecp;
/* perform the registration */
rv = mdeg_register(inst_specp, &vport_match, i_vldc_mdeg_cb,
vldcp, &mdeg_hdl);
if (rv != MDEG_SUCCESS) {
cmn_err(CE_NOTE, "?i_vldc_mdeg_register: mdeg_register "
"failed, err = %d", rv);
kmem_free(name, namesz);
kmem_free(pspecp, templatesz);
kmem_free(inst_specp, sizeof (mdeg_node_spec_t));
return (DDI_FAILURE);
}
/* save off data that will be needed later */
vldcp->inst_spec = inst_specp;
vldcp->mdeg_hdl = mdeg_hdl;
return (DDI_SUCCESS);
}
int
gfxp_vgatext_attach(dev_info_t *devi, ddi_attach_cmd_t cmd,
gfxp_vgatext_softc_ptr_t ptr)
{
struct vgatext_softc *softc = (struct vgatext_softc *)ptr;
int unit = ddi_get_instance(devi);
int error;
char *parent_type = NULL;
int reg_rnumber;
off_t reg_offset;
off_t mem_offset;
char *cons;
int pci_pcie_bus = 0;
int value;
switch (cmd) {
case DDI_ATTACH:
break;
case DDI_RESUME:
vgatext_resume(softc);
return (DDI_SUCCESS);
default:
return (DDI_FAILURE);
}
/* DDI_ATTACH */
softc->devi = devi; /* Copy and init DEVI */
softc->polledio.arg = (struct vis_polledio_arg *)softc;
softc->polledio.display = vgatext_polled_display;
softc->polledio.copy = vgatext_polled_copy;
softc->polledio.cursor = vgatext_polled_cursor;
mutex_init(&(softc->lock), NULL, MUTEX_DRIVER, NULL);
error = ddi_prop_lookup_string(DDI_DEV_T_ANY, ddi_get_parent(devi),
DDI_PROP_DONTPASS, "device_type", &parent_type);
if (error != DDI_SUCCESS) {
cmn_err(CE_WARN, MYNAME ": can't determine parent type.");
goto fail;
}
/* Not enable AGP and DRM by default */
if (STREQ(parent_type, "isa") || STREQ(parent_type, "eisa")) {
reg_rnumber = vgatext_get_isa_reg_index(devi, 1, VGA_REG_ADDR,
®_offset);
if (reg_rnumber < 0) {
cmn_err(CE_WARN,
MYNAME
": can't find reg entry for registers");
error = DDI_FAILURE;
goto fail;
}
softc->fb_regno = vgatext_get_isa_reg_index(devi, 0,
VGA_MEM_ADDR, &mem_offset);
if (softc->fb_regno < 0) {
cmn_err(CE_WARN,
MYNAME
": can't find reg entry for memory");
error = DDI_FAILURE;
goto fail;
}
} else if (STREQ(parent_type, "pci") || STREQ(parent_type, "pciex")) {
pci_pcie_bus = 1;
reg_rnumber = vgatext_get_pci_reg_index(devi,
PCI_REG_ADDR_M|PCI_REG_REL_M,
PCI_ADDR_IO|PCI_RELOCAT_B, VGA_REG_ADDR,
®_offset);
if (reg_rnumber < 0) {
cmn_err(CE_WARN,
MYNAME
": can't find reg entry for registers");
error = DDI_FAILURE;
goto fail;
}
softc->fb_regno = vgatext_get_pci_reg_index(devi,
PCI_REG_ADDR_M|PCI_REG_REL_M,
PCI_ADDR_MEM32|PCI_RELOCAT_B, VGA_MEM_ADDR,
&mem_offset);
if (softc->fb_regno < 0) {
cmn_err(CE_WARN,
MYNAME
": can't find reg entry for memory");
error = DDI_FAILURE;
goto fail;
}
} else {
cmn_err(CE_WARN, MYNAME ": unknown parent type \"%s\".",
parent_type);
error = DDI_FAILURE;
goto fail;
}
ddi_prop_free(parent_type);
parent_type = NULL;
error = ddi_regs_map_setup(devi, reg_rnumber,
(caddr_t *)&softc->regs.addr, reg_offset, VGA_REG_SIZE,
&dev_attr, &softc->regs.handle);
if (error != DDI_SUCCESS)
goto fail;
softc->regs.mapped = B_TRUE;
softc->fb_size = VGA_MEM_SIZE;
error = ddi_regs_map_setup(devi, softc->fb_regno,
(caddr_t *)&softc->fb.addr,
mem_offset, softc->fb_size,
&dev_attr, &softc->fb.handle);
if (error != DDI_SUCCESS)
goto fail;
softc->fb.mapped = B_TRUE;
if (ddi_get8(softc->regs.handle,
softc->regs.addr + VGA_MISC_R) & VGA_MISC_IOA_SEL)
softc->text_base = (caddr_t)softc->fb.addr + VGA_COLOR_BASE;
else
softc->text_base = (caddr_t)softc->fb.addr + VGA_MONO_BASE;
if (ddi_prop_lookup_string(DDI_DEV_T_ANY, ddi_root_node(),
DDI_PROP_DONTPASS, "console", &cons) == DDI_SUCCESS) {
if (strcmp(cons, "graphics") == 0) {
happyface_boot = 1;
vgatext_silent = 1;
softc->current_base = softc->shadow;
} else {
softc->current_base = softc->text_base;
}
ddi_prop_free(cons);
} else {
softc->current_base = softc->text_base;
}
error = ddi_prop_create(makedevice(DDI_MAJOR_T_UNKNOWN, unit),
devi, DDI_PROP_CANSLEEP, DDI_KERNEL_IOCTL, NULL, 0);
if (error != DDI_SUCCESS)
goto fail;
gfxp_check_for_console(devi, softc, pci_pcie_bus);
value = GFXP_IS_CONSOLE(softc) ? 1 : 0;
if (ddi_prop_update_int(DDI_DEV_T_NONE, devi,
"primary-controller", value) != DDI_SUCCESS) {
cmn_err(CE_WARN,
"Can not %s primary-controller "
"property for driver", value ? "set" : "clear");
}
/* only do this if not in graphics mode */
if ((vgatext_silent == 0) && (GFXP_IS_CONSOLE(softc))) {
vgatext_init(softc);
vgatext_save_colormap(softc);
}
return (DDI_SUCCESS);
fail:
if (parent_type != NULL)
ddi_prop_free(parent_type);
(void) gfxp_vgatext_detach(devi, DDI_DETACH, (void *)softc);
return (error);
}
/*
* Process acpi-user-options property if present
*/
static void
acpica_process_user_options()
{
static int processed = 0;
int acpi_user_options;
char *acpi_prop;
/*
* return if acpi-user-options has already been processed
*/
if (processed)
return;
else
processed = 1;
/* converts acpi-user-options from type string to int, if any */
if (ddi_prop_lookup_string(DDI_DEV_T_ANY, ddi_root_node(),
DDI_PROP_DONTPASS, "acpi-user-options", &acpi_prop) ==
DDI_PROP_SUCCESS) {
long data;
int ret;
ret = ddi_strtol(acpi_prop, NULL, 0, &data);
if (ret == 0) {
e_ddi_prop_remove(DDI_DEV_T_NONE, ddi_root_node(),
"acpi-user-options");
e_ddi_prop_update_int(DDI_DEV_T_NONE, ddi_root_node(),
"acpi-user-options", data);
}
ddi_prop_free(acpi_prop);
}
/*
* fetch the optional options property
*/
acpi_user_options = ddi_prop_get_int(DDI_DEV_T_ANY, ddi_root_node(),
DDI_PROP_DONTPASS, "acpi-user-options", 0);
/*
* Note that 'off' has precedence over 'on'
* Also note - all cases of ACPI_OUSER_MASK
* provided here, no default: case is present
*/
switch (acpi_user_options & ACPI_OUSER_MASK) {
case ACPI_OUSER_DFLT:
acpica_enable = acpica_check_bios_date(1999, 1, 1);
break;
case ACPI_OUSER_ON:
acpica_enable = TRUE;
break;
case ACPI_OUSER_OFF:
case ACPI_OUSER_OFF | ACPI_OUSER_ON:
acpica_enable = FALSE;
break;
}
acpi_init_level = ACPI_FULL_INITIALIZATION;
/*
* special test here; may be generalized in the
* future - test for a machines that are known to
* work only in legacy mode, and set OUSER_LEGACY if
* we're on one
*/
if (acpica_metro_old_bios())
acpi_user_options |= ACPI_OUSER_LEGACY;
/*
* If legacy mode is specified, set initialization
* options to avoid entering ACPI mode and hooking SCI
* - basically try to act like legacy acpi_intp
*/
if ((acpi_user_options & ACPI_OUSER_LEGACY) != 0)
acpi_init_level |= (ACPI_NO_ACPI_ENABLE | ACPI_NO_HANDLER_INIT);
/*
* modify default ACPI CA debug output level for non-DEBUG builds
* (to avoid BIOS debug chatter in /var/adm/messages)
*/
if (acpica_muzzle_debug_output)
AcpiDbgLevel = 0;
}
static void
gfxp_check_for_console(dev_info_t *devi, struct vgatext_softc *softc,
int pci_pcie_bus)
{
ddi_acc_handle_t pci_conf;
dev_info_t *pdevi;
uint16_t data16;
/*
* Based on Section 11.3, "PCI Display Subsystem Initialization",
* of the 1.1 PCI-to-PCI Bridge Architecture Specification
* determine if this is the boot console device. First, see
* if the SBIOS has turned on PCI I/O for this device. Then if
* this is PCI/PCI-E, verify the parent bridge has VGAEnable set.
*/
if (pci_config_setup(devi, &pci_conf) != DDI_SUCCESS) {
cmn_err(CE_WARN,
MYNAME
": can't get PCI conf handle");
return;
}
data16 = pci_config_get16(pci_conf, PCI_CONF_COMM);
if (data16 & PCI_COMM_IO)
softc->flags |= GFXP_FLAG_CONSOLE;
pci_config_teardown(&pci_conf);
/* If IO not enabled or ISA/EISA, just return */
if (!(softc->flags & GFXP_FLAG_CONSOLE) || !pci_pcie_bus)
return;
/*
* Check for VGA Enable in the Bridge Control register for all
* PCI/PCIEX parents. If not set all the way up the chain,
* this cannot be the boot console.
*/
pdevi = ddi_get_parent(devi);
while (pdevi) {
int error;
ddi_acc_handle_t ppci_conf;
char *parent_type = NULL;
error = ddi_prop_lookup_string(DDI_DEV_T_ANY, pdevi,
DDI_PROP_DONTPASS, "device_type", &parent_type);
if (error != DDI_SUCCESS) {
return;
}
/* Verify still on the PCI/PCIEX parent tree */
if (!STREQ(parent_type, "pci") &&
!STREQ(parent_type, "pciex")) {
ddi_prop_free(parent_type);
return;
}
ddi_prop_free(parent_type);
parent_type = NULL;
if (pci_config_setup(pdevi, &ppci_conf) != DDI_SUCCESS) {
/* No registers on root node, done with check */
return;
}
data16 = pci_config_get16(ppci_conf, PCI_BCNF_BCNTRL);
pci_config_teardown(&ppci_conf);
if (!(data16 & PCI_BCNF_BCNTRL_VGA_ENABLE)) {
softc->flags &= ~GFXP_FLAG_CONSOLE;
return;
}
pdevi = ddi_get_parent(pdevi);
}
}
/*ARGSUSED*/
static int
ppb_attach(dev_info_t *devi, ddi_attach_cmd_t cmd)
{
dev_info_t *root = ddi_root_node();
int instance;
ppb_devstate_t *ppb;
dev_info_t *pdip;
ddi_acc_handle_t config_handle;
char *bus;
switch (cmd) {
case DDI_ATTACH:
/*
* Make sure the "device_type" property exists.
*/
(void) ddi_prop_update_string(DDI_DEV_T_NONE, devi,
"device_type", "pci");
/*
* Allocate and get soft state structure.
*/
instance = ddi_get_instance(devi);
if (ddi_soft_state_zalloc(ppb_state, instance) != DDI_SUCCESS)
return (DDI_FAILURE);
ppb = (ppb_devstate_t *)ddi_get_soft_state(ppb_state, instance);
ppb->dip = devi;
mutex_init(&ppb->ppb_mutex, NULL, MUTEX_DRIVER, NULL);
ppb->ppb_soft_state = PCI_SOFT_STATE_CLOSED;
if (pci_config_setup(devi, &config_handle) != DDI_SUCCESS) {
mutex_destroy(&ppb->ppb_mutex);
ddi_soft_state_free(ppb_state, instance);
return (DDI_FAILURE);
}
ppb_pwr_setup(ppb, devi);
if (PM_CAPABLE(ppb->ppb_pwr_p)) {
mutex_enter(&ppb->ppb_pwr_p->pwr_mutex);
/*
* Before reading config registers, make sure power is
* on, and remains on.
*/
ppb->ppb_pwr_p->pwr_fp++;
pci_pwr_change(ppb->ppb_pwr_p,
ppb->ppb_pwr_p->current_lvl,
pci_pwr_new_lvl(ppb->ppb_pwr_p));
}
ppb->ppb_cache_line_size =
pci_config_get8(config_handle, PCI_CONF_CACHE_LINESZ);
ppb->ppb_latency_timer =
pci_config_get8(config_handle, PCI_CONF_LATENCY_TIMER);
/*
* Check whether the "ranges" property is present.
* Otherwise create the ranges property by reading
* the configuration registers
*/
if (ddi_prop_exists(DDI_DEV_T_ANY, devi, DDI_PROP_DONTPASS,
"ranges") == 0) {
ppb_create_ranges_prop(devi, config_handle);
}
pci_config_teardown(&config_handle);
if (PM_CAPABLE(ppb->ppb_pwr_p)) {
ppb->ppb_pwr_p->pwr_fp--;
pci_pwr_change(ppb->ppb_pwr_p,
ppb->ppb_pwr_p->current_lvl,
pci_pwr_new_lvl(ppb->ppb_pwr_p));
mutex_exit(&ppb->ppb_pwr_p->pwr_mutex);
}
ppb->parent_bus = PCIE_PCIECAP_DEV_TYPE_PCI_PSEUDO;
for (pdip = ddi_get_parent(ppb->dip); pdip && (pdip != root) &&
(ppb->parent_bus != PCIE_PCIECAP_DEV_TYPE_PCIE_DEV);
pdip = ddi_get_parent(pdip)) {
if (ddi_prop_lookup_string(DDI_DEV_T_ANY, pdip,
DDI_PROP_DONTPASS, "device_type", &bus) !=
DDI_PROP_SUCCESS)
break;
if (strcmp(bus, "pciex") == 0)
ppb->parent_bus =
PCIE_PCIECAP_DEV_TYPE_PCIE_DEV;
ddi_prop_free(bus);
}
/*
* Initialize hotplug support on this bus.
*/
if (ppb->parent_bus == PCIE_PCIECAP_DEV_TYPE_PCIE_DEV)
if (pcie_init(devi, NULL) != DDI_SUCCESS) {
(void) ppb_detach(devi, DDI_DETACH);
return (DDI_FAILURE);
}
else
ppb_init_hotplug(ppb);
DEBUG1(DBG_ATTACH, devi,
"ppb_attach(): this nexus %s hotplug slots\n",
ppb->hotplug_capable == B_TRUE ? "has":"has no");
ppb_fm_init(ppb);
ddi_report_dev(devi);
return (DDI_SUCCESS);
case DDI_RESUME:
/*
* Get the soft state structure for the bridge.
*/
ppb = (ppb_devstate_t *)
ddi_get_soft_state(ppb_state, ddi_get_instance(devi));
pci_pwr_resume(devi, ppb->ppb_pwr_p);
return (DDI_SUCCESS);
}
return (DDI_FAILURE);
}
static int
gen_create_minor_nodes(dev_info_t *devi, struct dstate *dstatep)
{
int rval = DDI_SUCCESS;
char *node_name;
node_name = ddi_node_name(devi);
if (strcmp(node_name, "disk_chan") == 0) {
rval = gen_create_mn_disk_chan(devi);
} else if (strcmp(node_name, "disk_wwn") == 0) {
rval = gen_create_mn_disk_wwn(devi);
} else if (strcmp(node_name, "disk_cdrom") == 0) {
rval = gen_create_mn_disk_cdrom(devi);
} else if (strcmp(node_name, "disk_fd") == 0) {
rval = gen_create_mn_disk_fd(devi);
} else if (strcmp(node_name, "cgtwenty") == 0) {
rval = gen_create_display(devi);
} else if (strcmp(node_name, "genzs") == 0) {
rval = gen_create_serial(devi);
} else if (strcmp(node_name, "net") == 0) {
rval = gen_create_net(devi);
} else {
int instance = ddi_get_instance(devi);
char *node_type;
/*
* Solaris may directly hang the node_type off the minor node
* (without making a copy). Since we free the node_type
* property below we need to make a private copy to pass
* to ddi_create_minor_node to avoid devinfo snapshot panics.
* We store a pointer to our copy in dstate and free it in
* gen_detach after the minor nodes have been deleted by
* ddi_remove_minor_node.
*/
if (ddi_prop_lookup_string(DDI_DEV_T_ANY, devi,
DDI_PROP_DONTPASS, "node-type", &node_type) != 0) {
cmn_err(CE_WARN, "couldn't get node-type\n");
return (DDI_FAILURE);
}
if (node_type) {
dstatep->node_type = kmem_alloc(
strlen(node_type) + 1, KM_SLEEP);
(void) strcpy(dstatep->node_type, node_type);
}
ddi_prop_free(node_type);
/* the minor name is the same as the node name */
if (ddi_create_minor_node(devi, node_name, S_IFCHR,
(INST_TO_MINOR(instance)), dstatep->node_type, NULL) !=
DDI_SUCCESS) {
if (dstatep->node_type) {
kmem_free(dstatep->node_type,
strlen(dstatep->node_type) + 1);
dstatep->node_type = NULL;
}
return (DDI_FAILURE);
}
return (DDI_SUCCESS);
}
if (rval != DDI_SUCCESS) {
ddi_prop_remove_all(devi);
ddi_remove_minor_node(devi, NULL);
}
return (rval);
}
/*
* Per-instance initialization. Suspend/resume not supported.
*/
static int
iospc_attach(dev_info_t *dip, ddi_attach_cmd_t cmd)
{
iospc_t *iospc_p;
int instance = ddi_get_instance(dip);
char *ptr;
IOSPC_DBG2("iospc: iospc_attach: enter\n");
switch (cmd) {
case DDI_RESUME:
case DDI_ATTACH:
/* Initialize one-time kstat structures. */
mutex_enter(&iospc_mutex);
if (!iospc_kstat_inited) {
if ((ddi_prop_lookup_string(DDI_DEV_T_ANY, dip,
0, "compatible", &ptr)) != DDI_PROP_SUCCESS)
goto bad_property;
if ((strcmp(ptr, "SUNW,ktios-pr") == 0) ||
(strcmp(ptr, "SUNW,rfios-pr") == 0)) {
iospc_leaf_grps = rfios_bind_group();
} else {
ddi_prop_free(ptr);
goto bad_property;
}
ddi_prop_free(ptr);
if (iospc_kstat_init() != DDI_SUCCESS)
goto bad_kstat_init;
iospc_kstat_inited++;
}
mutex_exit(&iospc_mutex);
if (ddi_soft_state_zalloc(iospc_state_p, instance) !=
DDI_SUCCESS) {
goto bad_softstate;
}
iospc_p = (iospc_t *)ddi_get_soft_state(iospc_state_p,
instance);
iospc_p->iospc_dip = dip;
/* Set up kstats. */
if (iospc_kstat_attach(iospc_p) != DDI_SUCCESS)
goto bad_kstat_attach;
IOSPC_DBG2("iospc: iospc_attach: exit SUCCESS\n");
return (DDI_SUCCESS);
bad_kstat_attach:
(void) ddi_soft_state_free(iospc_state_p, instance);
bad_softstate:
iospc_kstat_fini();
bad_kstat_init:
bad_property:
mutex_enter(&iospc_mutex);
IOSPC_DBG2("iospc: iospc_attach: exit FAILURE\n");
return (DDI_FAILURE);
default:
return (DDI_FAILURE);
}
}
/*
* cnex_find_chan_dip -- Find the dip of a device that is corresponding
* to the specific channel. Below are the details on how the dip
* is derived.
*
* - In the MD, the cfg-handle is expected to be unique for
* virtual-device nodes that have the same 'name' property value.
* This value is expected to be the same as that of "reg" property
* of the corresponding OBP device node.
*
* - The value of the 'name' property of a virtual-device node
* in the MD is expected to be the same for the corresponding
* OBP device node.
*
* - Find the virtual-device node corresponding to a channel-endpoint
* by walking backwards. Then obtain the values for the 'name' and
* 'cfg-handle' properties.
*
* - Walk all the children of the cnex, find a matching dip which
* has the same 'name' and 'reg' property values.
*
* - The channels that have no corresponding device driver are
* treated as if they correspond to the cnex driver,
* that is, return cnex dip for them. This means, the
* cnex acts as an umbrella device driver. Note, this is
* for 'intrstat' statistics purposes only. As a result of this,
* the 'intrstat' shows cnex as the device that is servicing the
* interrupts corresponding to these channels.
*
* For now, only one such case is known, that is, the channels that
* are used by the "domain-services".
*/
static dev_info_t *
cnex_find_chan_dip(dev_info_t *dip, uint64_t chan_id,
md_t *mdp, mde_cookie_t mde)
{
int listsz;
int num_nodes;
int num_devs;
uint64_t cfghdl;
char *md_name;
mde_cookie_t *listp;
dev_info_t *cdip = NULL;
num_nodes = md_node_count(mdp);
ASSERT(num_nodes > 0);
listsz = num_nodes * sizeof (mde_cookie_t);
listp = (mde_cookie_t *)kmem_zalloc(listsz, KM_SLEEP);
num_devs = md_scan_dag(mdp, mde, md_find_name(mdp, "virtual-device"),
md_find_name(mdp, "back"), listp);
ASSERT(num_devs <= 1);
if (num_devs <= 0) {
DWARN("cnex_find_chan_dip:channel(0x%llx): "
"No virtual-device found\n", chan_id);
goto fdip_exit;
}
if (md_get_prop_str(mdp, listp[0], "name", &md_name) != 0) {
DWARN("cnex_find_chan_dip:channel(0x%llx): "
"name property not found\n", chan_id);
goto fdip_exit;
}
D1("cnex_find_chan_dip: channel(0x%llx): virtual-device "
"name property value = %s\n", chan_id, md_name);
if (md_get_prop_val(mdp, listp[0], "cfg-handle", &cfghdl) != 0) {
DWARN("cnex_find_chan_dip:channel(0x%llx): virtual-device's "
"cfg-handle property not found\n", chan_id);
goto fdip_exit;
}
D1("cnex_find_chan_dip:channel(0x%llx): virtual-device cfg-handle "
" property value = 0x%x\n", chan_id, cfghdl);
for (cdip = ddi_get_child(dip); cdip != NULL;
cdip = ddi_get_next_sibling(cdip)) {
int *cnex_regspec;
uint32_t reglen;
char *dev_name;
if (ddi_prop_lookup_string(DDI_DEV_T_ANY, cdip,
DDI_PROP_DONTPASS, "name",
&dev_name) != DDI_PROP_SUCCESS) {
DWARN("cnex_find_chan_dip: name property not"
" found for dip(0x%p)\n", cdip);
continue;
}
if (strcmp(md_name, dev_name) != 0) {
ddi_prop_free(dev_name);
continue;
}
ddi_prop_free(dev_name);
if (ddi_prop_lookup_int_array(DDI_DEV_T_ANY, cdip,
DDI_PROP_DONTPASS, "reg",
&cnex_regspec, ®len) != DDI_SUCCESS) {
DWARN("cnex_find_chan_dip: reg property not"
" found for dip(0x%p)\n", cdip);
continue;
}
if (*cnex_regspec == cfghdl) {
D1("cnex_find_chan_dip:channel(0x%llx): found "
"dip(0x%p) drvname=%s\n", chan_id, cdip,
ddi_driver_name(cdip));
ddi_prop_free(cnex_regspec);
break;
}
ddi_prop_free(cnex_regspec);
}
fdip_exit:
if (cdip == NULL) {
/*
* If a virtual-device node exists but no dip found,
* then for now print a DEBUG error message only.
*/
if (num_devs > 0) {
DERR("cnex_find_chan_dip:channel(0x%llx): "
"No device found\n", chan_id);
}
/* If no dip was found, return cnex device's dip. */
cdip = dip;
}
kmem_free(listp, listsz);
D1("cnex_find_chan_dip:channel(0x%llx): returning dip=0x%p\n",
chan_id, cdip);
return (cdip);
}
