ea1a228c80597366447774aa1988868492330eb5schwartz * CDDL HEADER START
ea1a228c80597366447774aa1988868492330eb5schwartz * The contents of this file are subject to the terms of the
ea1a228c80597366447774aa1988868492330eb5schwartz * Common Development and Distribution License (the "License").
ea1a228c80597366447774aa1988868492330eb5schwartz * You may not use this file except in compliance with the License.
ea1a228c80597366447774aa1988868492330eb5schwartz * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
ea1a228c80597366447774aa1988868492330eb5schwartz * See the License for the specific language governing permissions
ea1a228c80597366447774aa1988868492330eb5schwartz * and limitations under the License.
ea1a228c80597366447774aa1988868492330eb5schwartz * When distributing Covered Code, include this CDDL HEADER in each
ea1a228c80597366447774aa1988868492330eb5schwartz * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
ea1a228c80597366447774aa1988868492330eb5schwartz * If applicable, add the following below this CDDL HEADER, with the
ea1a228c80597366447774aa1988868492330eb5schwartz * fields enclosed by brackets "[]" replaced with your own identifying
ea1a228c80597366447774aa1988868492330eb5schwartz * information: Portions Copyright [yyyy] [name of copyright owner]
ea1a228c80597366447774aa1988868492330eb5schwartz * CDDL HEADER END
193974072f41a843678abf5f61979c748687e66bSherry Moore * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
ea1a228c80597366447774aa1988868492330eb5schwartz * Use is subject to license terms.
ea1a228c80597366447774aa1988868492330eb5schwartz * Driver interconnect for the N2 PIU performance counter driver.
ea1a228c80597366447774aa1988868492330eb5schwartz/* Debugging level. */
ea1a228c80597366447774aa1988868492330eb5schwartz#endif /* DEBUG */
ea1a228c80597366447774aa1988868492330eb5schwartz/* State structure anchor. */
ea1a228c80597366447774aa1988868492330eb5schwartzstatic int n2piupc_attach(dev_info_t *dip, ddi_attach_cmd_t cmd);
ea1a228c80597366447774aa1988868492330eb5schwartzstatic int n2piupc_detach(dev_info_t *dip, ddi_detach_cmd_t cmd);
ea1a228c80597366447774aa1988868492330eb5schwartz * Support for hypervisor versioning.
ea1a228c80597366447774aa1988868492330eb5schwartz * Need to negotiate for the N2PIU_PERF_COUNTER_GROUP
ea1a228c80597366447774aa1988868492330eb5schwartz MODULE_NAME /* Passed in as a #define from Makefile */
ea1a228c80597366447774aa1988868492330eb5schwartz/* Driver boilerplate stuff. Having no minor nodes keep things very simple. */
193974072f41a843678abf5f61979c748687e66bSherry Moore "N2 PIU Perf Counter",
ea1a228c80597366447774aa1988868492330eb5schwartz * One-time module-wide initialization.
ea1a228c80597366447774aa1988868492330eb5schwartz /* Negotiate for hypervisor support. */
ea1a228c80597366447774aa1988868492330eb5schwartz if ((rval = hsvc_register(&n2piupc_hsvc, &n2piupc_sup_minor)) !=
ea1a228c80597366447774aa1988868492330eb5schwartz /* Initialize per-leaf soft state pointer. */
ea1a228c80597366447774aa1988868492330eb5schwartz /* Initialize one-time kstat structures. */
ea1a228c80597366447774aa1988868492330eb5schwartz /* If all checks out, install the module. */
ea1a228c80597366447774aa1988868492330eb5schwartz * One-time module-wide cleanup, after last detach is done.
ea1a228c80597366447774aa1988868492330eb5schwartz * Remove the module first as this operation is the only thing here
ea1a228c80597366447774aa1988868492330eb5schwartz * which can fail.
ea1a228c80597366447774aa1988868492330eb5schwartz /* One-shot kstat data structure cleanup. */
ea1a228c80597366447774aa1988868492330eb5schwartz /* Free px soft state */
ea1a228c80597366447774aa1988868492330eb5schwartz /* Unregister with hypervisor. */
ea1a228c80597366447774aa1988868492330eb5schwartz * Per-instance initialization. Suspend/resume not supported.
ea1a228c80597366447774aa1988868492330eb5schwartzn2piupc_attach(dev_info_t *dip, ddi_attach_cmd_t cmd)
ea1a228c80597366447774aa1988868492330eb5schwartz if (ddi_soft_state_zalloc(n2piupc_state_p, instance) !=
ea1a228c80597366447774aa1988868492330eb5schwartz cmn_err(CE_WARN, "%s%d: Can't allocate softstate.\n",
ea1a228c80597366447774aa1988868492330eb5schwartz n2piupc_p = (n2piupc_t *)ddi_get_soft_state(n2piupc_state_p,
ea1a228c80597366447774aa1988868492330eb5schwartz /* Get handle for hypervisor access of performance counters. */
ea1a228c80597366447774aa1988868492330eb5schwartz if (ddi_getlongprop_buf(DDI_DEV_T_ANY, dip, DDI_PROP_DONTPASS,
ea1a228c80597366447774aa1988868492330eb5schwartz "%s%d: Cannot get reg property\n",
ea1a228c80597366447774aa1988868492330eb5schwartz /* Look only at the lower 28 bits of the highest cell. */
ea1a228c80597366447774aa1988868492330eb5schwartz n2piupc_p->n2piupc_handle = regprop[0] & 0xfffffff;
ea1a228c80597366447774aa1988868492330eb5schwartz /* Set up kstats. */
ea1a228c80597366447774aa1988868492330eb5schwartz if (n2piupc_kstat_attach(n2piupc_p) != DDI_SUCCESS)
ea1a228c80597366447774aa1988868492330eb5schwartz (void) ddi_soft_state_free(n2piupc_state_p, instance);
ea1a228c80597366447774aa1988868492330eb5schwartz * Per-instance cleanup. Suspend/resume not supported.
ea1a228c80597366447774aa1988868492330eb5schwartzn2piupc_detach(dev_info_t *dip, ddi_detach_cmd_t cmd)
ea1a228c80597366447774aa1988868492330eb5schwartz n2piupc_t *n2piupc_p = (n2piupc_t *)ddi_get_soft_state(