4 * DSP-BIOS Bridge driver support functions for TI OMAP processors.
6 * Implementation of Manager interface to the device object at the
7 * driver level. This queries the NDB data base and retrieves the
8 * data about Node and Processor.
10 * Copyright (C) 2005-2006 Texas Instruments, Inc.
12 * This package is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License version 2 as
14 * published by the Free Software Foundation.
16 * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
18 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
21 #include <linux/types.h>
23 /* ----------------------------------- Host OS */
24 #include <dspbridge/host_os.h>
26 /* ----------------------------------- DSP/BIOS Bridge */
27 #include <dspbridge/dbdefs.h>
29 /* ----------------------------------- Trace & Debug */
30 #include <dspbridge/dbc.h>
32 /* ----------------------------------- OS Adaptation Layer */
33 #include <dspbridge/sync.h>
35 /* ----------------------------------- Others */
36 #include <dspbridge/dbdcd.h>
37 #include <dspbridge/drv.h>
38 #include <dspbridge/dev.h>
40 /* ----------------------------------- This */
41 #include <dspbridge/mgr.h>
43 /* ----------------------------------- Defines, Data Structures, Typedefs */
47 struct dcd_manager *dcd_mgr; /* Proc/Node data manager */
50 /* ----------------------------------- Globals */
54 * ========= mgr_create =========
56 * MGR Object gets created only once during driver Loading.
58 int mgr_create(struct mgr_object **mgr_obj,
59 struct cfg_devnode *dev_node_obj)
62 struct mgr_object *pmgr_obj = NULL;
63 struct drv_data *drv_datap = dev_get_drvdata(bridge);
65 DBC_REQUIRE(mgr_obj != NULL);
66 DBC_REQUIRE(refs > 0);
68 pmgr_obj = kzalloc(sizeof(struct mgr_object), GFP_KERNEL);
70 status = dcd_create_manager(ZLDLLNAME, &pmgr_obj->dcd_mgr);
72 /* If succeeded store the handle in the MGR Object */
74 drv_datap->mgr_object = (void *)pmgr_obj;
77 pr_err("%s: Failed to store MGR object\n",
84 dcd_destroy_manager(pmgr_obj->dcd_mgr);
88 /* failed to Create DCD Manager */
95 DBC_ENSURE(status || pmgr_obj);
100 * ========= mgr_destroy =========
101 * This function is invoked during bridge driver unloading.Frees MGR object.
103 int mgr_destroy(struct mgr_object *hmgr_obj)
106 struct mgr_object *pmgr_obj = (struct mgr_object *)hmgr_obj;
107 struct drv_data *drv_datap = dev_get_drvdata(bridge);
109 DBC_REQUIRE(refs > 0);
110 DBC_REQUIRE(hmgr_obj);
113 if (hmgr_obj->dcd_mgr)
114 dcd_destroy_manager(hmgr_obj->dcd_mgr);
117 /* Update the driver data with NULL for MGR Object */
119 drv_datap->mgr_object = NULL;
122 pr_err("%s: Failed to store MGR object\n", __func__);
129 * ======== mgr_enum_node_info ========
130 * Enumerate and get configuration information about nodes configured
131 * in the node database.
133 int mgr_enum_node_info(u32 node_id, struct dsp_ndbprops *pndb_props,
134 u32 undb_props_size, u32 *pu_num_nodes)
137 struct dsp_uuid node_uuid;
139 struct dcd_genericobj gen_obj;
140 struct mgr_object *pmgr_obj = NULL;
141 struct drv_data *drv_datap = dev_get_drvdata(bridge);
143 DBC_REQUIRE(pndb_props != NULL);
144 DBC_REQUIRE(pu_num_nodes != NULL);
145 DBC_REQUIRE(undb_props_size >= sizeof(struct dsp_ndbprops));
146 DBC_REQUIRE(refs > 0);
149 /* Get the Manager Object from the driver data */
150 if (!drv_datap || !drv_datap->mgr_object) {
151 pr_err("%s: Failed to retrieve the object handle\n", __func__);
154 pmgr_obj = drv_datap->mgr_object;
156 DBC_ASSERT(pmgr_obj);
157 /* Forever loop till we hit failed or no more items in the
158 * Enumeration. We will exit the loop other than 0; */
160 status = dcd_enumerate_object(node_index++, DSP_DCDNODETYPE,
164 *pu_num_nodes = node_index;
165 if (node_id == (node_index - 1)) {
166 status = dcd_get_object_def(pmgr_obj->dcd_mgr,
167 &node_uuid, DSP_DCDNODETYPE, &gen_obj);
170 /* Get the Obj def */
171 *pndb_props = gen_obj.obj_data.node_obj.ndb_props;
175 /* the last status is not 0, but neither an error */
183 * ======== mgr_enum_processor_info ========
184 * Enumerate and get configuration information about available
187 int mgr_enum_processor_info(u32 processor_id,
188 struct dsp_processorinfo *
189 processor_info, u32 processor_info_size,
195 struct dsp_uuid temp_uuid;
198 struct dcd_genericobj gen_obj;
199 struct mgr_object *pmgr_obj = NULL;
200 struct mgr_processorextinfo *ext_info;
201 struct dev_object *hdev_obj;
202 struct drv_object *hdrv_obj;
204 struct cfg_devnode *dev_node;
205 struct drv_data *drv_datap = dev_get_drvdata(bridge);
206 bool proc_detect = false;
208 DBC_REQUIRE(processor_info != NULL);
209 DBC_REQUIRE(pu_num_procs != NULL);
210 DBC_REQUIRE(processor_info_size >= sizeof(struct dsp_processorinfo));
211 DBC_REQUIRE(refs > 0);
215 /* Retrieve the Object handle from the driver data */
216 if (!drv_datap || !drv_datap->drv_object) {
218 pr_err("%s: Failed to retrieve the object handle\n", __func__);
220 hdrv_obj = drv_datap->drv_object;
224 status = drv_get_dev_object(processor_id, hdrv_obj, &hdev_obj);
226 status = dev_get_dev_type(hdev_obj, (u8 *) &dev_type);
227 status = dev_get_dev_node(hdev_obj, &dev_node);
228 if (dev_type != DSP_UNIT)
232 processor_info->processor_type = DSPTYPE64;
238 /* Get The Manager Object from the driver data */
239 if (drv_datap && drv_datap->mgr_object) {
240 pmgr_obj = drv_datap->mgr_object;
242 dev_dbg(bridge, "%s: Failed to get MGR Object\n", __func__);
245 DBC_ASSERT(pmgr_obj);
246 /* Forever loop till we hit no more items in the
247 * Enumeration. We will exit the loop other than 0; */
248 while (status1 == 0) {
249 status1 = dcd_enumerate_object(temp_index++,
250 DSP_DCDPROCESSORTYPE,
256 /* Get the Object properties to find the Device/Processor
258 if (proc_detect != false)
261 status2 = dcd_get_object_def(pmgr_obj->dcd_mgr,
262 (struct dsp_uuid *)&temp_uuid,
263 DSP_DCDPROCESSORTYPE, &gen_obj);
265 /* Get the Obj def */
266 if (processor_info_size <
267 sizeof(struct mgr_processorextinfo)) {
268 *processor_info = gen_obj.obj_data.proc_info;
271 ext_info = (struct mgr_processorextinfo *)
273 *ext_info = gen_obj.obj_data.ext_proc_obj;
275 dev_dbg(bridge, "%s: Got proctype from DCD %x\n",
276 __func__, processor_info->processor_type);
277 /* See if we got the needed processor */
278 if (dev_type == DSP_UNIT) {
279 if (processor_info->processor_type ==
282 } else if (dev_type == IVA_UNIT) {
283 if (processor_info->processor_type ==
287 /* User applciatiuons aonly check for chip type, so
288 * this clumsy overwrite */
289 processor_info->processor_type = DSPTYPE64;
291 dev_dbg(bridge, "%s: Failed to get DCD processor info "
292 "%x\n", __func__, status2);
296 *pu_num_procs = proc_index;
297 if (proc_detect == false) {
298 dev_dbg(bridge, "%s: Failed to get proc info from DCD, so use "
299 "CFG registry\n", __func__);
300 processor_info->processor_type = DSPTYPE64;
307 * ======== mgr_exit ========
308 * Decrement reference count, and free resources when reference count is
313 DBC_REQUIRE(refs > 0);
318 DBC_ENSURE(refs >= 0);
322 * ======== mgr_get_dcd_handle ========
323 * Retrieves the MGR handle. Accessor Function.
325 int mgr_get_dcd_handle(struct mgr_object *mgr_handle,
329 struct mgr_object *pmgr_obj = (struct mgr_object *)mgr_handle;
331 DBC_REQUIRE(refs > 0);
332 DBC_REQUIRE(dcd_handle != NULL);
334 *dcd_handle = (u32) NULL;
336 *dcd_handle = (u32) pmgr_obj->dcd_mgr;
339 DBC_ENSURE((!status && *dcd_handle != (u32) NULL) ||
340 (status && *dcd_handle == (u32) NULL));
346 * ======== mgr_init ========
347 * Initialize MGR's private state, keeping a reference count on each call.
352 bool init_dcd = false;
354 DBC_REQUIRE(refs >= 0);
357 init_dcd = dcd_init(); /* DCD Module */
366 DBC_ENSURE((ret && (refs > 0)) || (!ret && (refs >= 0)));
372 * ======== mgr_wait_for_bridge_events ========
373 * Block on any Bridge event(s)
375 int mgr_wait_for_bridge_events(struct dsp_notification **anotifications,
376 u32 count, u32 *pu_index,
380 struct sync_object *sync_events[MAX_EVENTS];
383 DBC_REQUIRE(count < MAX_EVENTS);
385 for (i = 0; i < count; i++)
386 sync_events[i] = anotifications[i]->handle;
388 status = sync_wait_on_multiple_events(sync_events, count, utimeout,