Esempio n. 1
0
static gboolean
port_dispatch(GSource *source, GSourceFunc callback, gpointer user_data)
{
    node_t *f;
	uint_t nget = 0;
	uint_t total = 0;

    FK_W ("%s 0x%p fd %d\n", __func__, source, PGPFD(source)->fd);

    G_LOCK (fen_lock);
    do {
        nget = 1;
        if (port_getn(PGPFD(source)->fd, pevents, PE_ALLOC, &nget, &zero_wait) == 0) {
            int i;
            for (i = 0; i < nget; i++) {
                f = (node_t *)pevents[i].portev_user;

                if (pevents[i].portev_source == PORT_SOURCE_FILE) {

                    NODE_CLE_STATE(f, NODE_STATE_ASSOCIATED);
                    NODE_SET_STATE(f, NODE_STATE_HAS_EVENTS);

                    if (HAS_NO_EXCEPTION_EVENTS(pevents[i].portev_events)) {
                        /* If the events do not show it's deleted, update
                         * file timestamp to avoid missing events next time.
                         */
                        if (node_lstat(f) != 0 /* || port_add(f) != 0 */) {
                            /* Included deleted event. */
                            pevents[i].portev_events |= FILE_DELETE;
                        }
                    }

                    /* Queue it and waiting for processing. */
                    g_queue_push_tail(g_eventq,
                      node_event_new(pevents[i].portev_events, (gpointer)f));

                } else {
                    FK_W ("[kernel] unknown portev_source %d\n", pevents[i].portev_source);
                }
            }

            total += nget;

        } else {
            FK_W ("[kernel] port_getn %s\n", g_strerror (errno));
            break;
        }
    } while (nget == PE_ALLOC);

    G_UNLOCK (fen_lock);

    if (total > 0 && callback) {
        FK_W ("[kernel] get total %ld events\n", total);
        return callback (user_data);
    }
    return TRUE;
}
Esempio n. 2
0
/*
 * port_add:
 * @f:
 *
 * Unsafe, need lock fen_lock.
 * port_add will associate a GSource to @f->source
 */
gint
port_add(node_t *f)
{
	GSource *source = f->source;

    FK_W ("%s [0x%p] %s\n", __func__, f, NODE_NAME(f));

    g_assert(f);
    g_assert(NODE_HAS_FLAG(f, NODE_FLAG_STAT_UPDATED));

    /* if (!NODE_HAS_FLAG(f, NODE_FLAG_STAT_DONE)) { */
    /*     if (NODE_STAT(f) != 0) { */
    /*         return errno; */
    /*     } */
    /* } */

    /* Try re-use f->pn. f->pn may be used by other request, e.g. f is deleted
     * for a long time. So if pn is full, we try to open a new one.
     */
    if (!source) {
start_over:
        /* Try the next visible source. */
        if (pn_visible_list) {
            source = (GSource *)pn_visible_list->data;
        } else {
            if ((source = psource_new()) != NULL) {
                g_assert (g_list_find (pn_visible_list, source) == NULL);
                pn_visible_list = g_list_prepend (pn_visible_list, source);
            }
        }
    }

    if (port_associate(PGPFD(source)->fd, PORT_SOURCE_FILE, (uintptr_t)FILE_OBJECT(f),
        CONCERNED_EVENTS,
        (void *)f) == 0) {
        f->source = source;
        NODE_SET_STATE(f, NODE_STATE_ASSOCIATED);
        NODE_CLE_FLAG(f, NODE_FLAG_STAT_UPDATED);
        FK_W ("PORT_ASSOCIATE 0x%p OK\n", f);
        return 0;
    } else if (errno == EAGAIN) {
        /* Full, remove it. */
        pn_visible_list = g_list_remove (pn_visible_list, source);
        /* Re-add to port */
        goto start_over;

    } else if (errno == ENOENT) {
        /* File is not exist */
    } else if (errno == ENOTSUP) {
        /* FS is not supported. Currently we think it no longer make sense to
         * monitor it, so clean the stat info and return 0 to ignore this
         * node. If there are requirement, we can consider to add polling
         * method.
         */
        NODE_CLE_FLAG(f, NODE_FLAG_STAT_UPDATED);
        return 0;
    } else {
        FK_W ("PORT_ASSOCIATE 0x%p %s\n", f, g_strerror (errno));
    }

    /* No matter if associated successfully, stat info is out-of-date, so clean it. */
    NODE_CLE_FLAG(f, NODE_FLAG_STAT_UPDATED);
    return errno;
}
Esempio n. 3
0
/*
 *  ======== node_allocate ========
 *  Purpose:
 *      Allocate GPP resources to manage a node on the DSP.
 */
int node_allocate(struct proc_object *hprocessor,
			const struct dsp_uuid *node_uuid,
			const struct dsp_cbdata *pargs,
			const struct dsp_nodeattrin *attr_in,
			struct node_res_object **noderes,
			struct process_context *pr_ctxt)
{
	struct node_mgr *hnode_mgr;
	struct dev_object *hdev_obj;
	struct node_object *pnode = NULL;
	enum node_type node_type = NODE_TASK;
	struct node_msgargs *pmsg_args;
	struct node_taskargs *ptask_args;
	u32 num_streams;
	struct bridge_drv_interface *intf_fxns;
	int status = 0;
	struct cmm_object *hcmm_mgr = NULL;	/* Shared memory manager hndl */
	u32 proc_id;
	u32 pul_value;
	u32 dynext_base;
	u32 off_set = 0;
	u32 ul_stack_seg_addr, ul_stack_seg_val;
	u32 ul_gpp_mem_base;
	struct cfg_hostres *host_res;
	struct bridge_dev_context *pbridge_context;
	u32 mapped_addr = 0;
	u32 map_attrs = 0x0;
	struct dsp_processorstate proc_state;
#ifdef DSP_DMM_DEBUG
	struct dmm_object *dmm_mgr;
	struct proc_object *p_proc_object = (struct proc_object *)hprocessor;
#endif

	void *node_res;

	DBC_REQUIRE(refs > 0);
	DBC_REQUIRE(hprocessor != NULL);
	DBC_REQUIRE(noderes != NULL);
	DBC_REQUIRE(node_uuid != NULL);

	*noderes = NULL;

	status = proc_get_processor_id(hprocessor, &proc_id);

	if (proc_id != DSP_UNIT)
		goto func_end;

	status = proc_get_dev_object(hprocessor, &hdev_obj);
	if (!status) {
		status = dev_get_node_manager(hdev_obj, &hnode_mgr);
		if (hnode_mgr == NULL)
			status = -EPERM;

	}

	if (status)
		goto func_end;

	status = dev_get_bridge_context(hdev_obj, &pbridge_context);
	if (!pbridge_context) {
		status = -EFAULT;
		goto func_end;
	}

	status = proc_get_state(hprocessor, &proc_state,
				sizeof(struct dsp_processorstate));
	if (status)
		goto func_end;
	/* If processor is in error state then don't attempt
	   to send the message */
	if (proc_state.proc_state == PROC_ERROR) {
		status = -EPERM;
		goto func_end;
	}

	/* Assuming that 0 is not a valid function address */
	if (hnode_mgr->ul_fxn_addrs[0] == 0) {
		/* No RMS on target - we currently can't handle this */
		pr_err("%s: Failed, no RMS in base image\n", __func__);
		status = -EPERM;
	} else {
		/* Validate attr_in fields, if non-NULL */
		if (attr_in) {
			/* Check if attr_in->prio is within range */
			if (attr_in->prio < hnode_mgr->min_pri ||
			    attr_in->prio > hnode_mgr->max_pri)
				status = -EDOM;
		}
	}
	/* Allocate node object and fill in */
	if (status)
		goto func_end;

	pnode = kzalloc(sizeof(struct node_object), GFP_KERNEL);
	if (pnode == NULL) {
		status = -ENOMEM;
		goto func_end;
	}
	pnode->hnode_mgr = hnode_mgr;
	/* This critical section protects get_node_props */
	mutex_lock(&hnode_mgr->node_mgr_lock);

	/* Get dsp_ndbprops from node database */
	status = get_node_props(hnode_mgr->hdcd_mgr, pnode, node_uuid,
				&(pnode->dcd_props));
	if (status)
		goto func_cont;

	pnode->node_uuid = *node_uuid;
	pnode->hprocessor = hprocessor;
	pnode->ntype = pnode->dcd_props.obj_data.node_obj.ndb_props.ntype;
	pnode->utimeout = pnode->dcd_props.obj_data.node_obj.ndb_props.utimeout;
	pnode->prio = pnode->dcd_props.obj_data.node_obj.ndb_props.prio;

	/* Currently only C64 DSP builds support Node Dynamic * heaps */
	/* Allocate memory for node heap */
	pnode->create_args.asa.task_arg_obj.heap_size = 0;
	pnode->create_args.asa.task_arg_obj.udsp_heap_addr = 0;
	pnode->create_args.asa.task_arg_obj.udsp_heap_res_addr = 0;
	pnode->create_args.asa.task_arg_obj.ugpp_heap_addr = 0;
	if (!attr_in)
		goto func_cont;

	/* Check if we have a user allocated node heap */
	if (!(attr_in->pgpp_virt_addr))
		goto func_cont;

	/* check for page aligned Heap size */
	if (((attr_in->heap_size) & (PG_SIZE4K - 1))) {
		pr_err("%s: node heap size not aligned to 4K, size = 0x%x \n",
		       __func__, attr_in->heap_size);
		status = -EINVAL;
	} else {
		pnode->create_args.asa.task_arg_obj.heap_size =
		    attr_in->heap_size;
		pnode->create_args.asa.task_arg_obj.ugpp_heap_addr =
		    (u32) attr_in->pgpp_virt_addr;
	}
	if (status)
		goto func_cont;

	status = proc_reserve_memory(hprocessor,
				     pnode->create_args.asa.task_arg_obj.
				     heap_size + PAGE_SIZE,
				     (void **)&(pnode->create_args.asa.
					task_arg_obj.udsp_heap_res_addr),
				     pr_ctxt);
	if (status) {
		pr_err("%s: Failed to reserve memory for heap: 0x%x\n",
		       __func__, status);
		goto func_cont;
	}
#ifdef DSP_DMM_DEBUG
	status = dmm_get_handle(p_proc_object, &dmm_mgr);
	if (!dmm_mgr) {
		status = DSP_EHANDLE;
		goto func_cont;
	}

	dmm_mem_map_dump(dmm_mgr);
#endif

	map_attrs |= DSP_MAPLITTLEENDIAN;
	map_attrs |= DSP_MAPELEMSIZE32;
	map_attrs |= DSP_MAPVIRTUALADDR;
	status = proc_map(hprocessor, (void *)attr_in->pgpp_virt_addr,
			  pnode->create_args.asa.task_arg_obj.heap_size,
			  (void *)pnode->create_args.asa.task_arg_obj.
			  udsp_heap_res_addr, (void **)&mapped_addr, map_attrs,
			  pr_ctxt);
	if (status)
		pr_err("%s: Failed to map memory for Heap: 0x%x\n",
		       __func__, status);
	else
		pnode->create_args.asa.task_arg_obj.udsp_heap_addr =
		    (u32) mapped_addr;

func_cont:
	mutex_unlock(&hnode_mgr->node_mgr_lock);
	if (attr_in != NULL) {
		/* Overrides of NBD properties */
		pnode->utimeout = attr_in->utimeout;
		pnode->prio = attr_in->prio;
	}
	/* Create object to manage notifications */
	if (!status) {
		pnode->ntfy_obj = kmalloc(sizeof(struct ntfy_object),
							GFP_KERNEL);
		if (pnode->ntfy_obj)
			ntfy_init(pnode->ntfy_obj);
		else
			status = -ENOMEM;
	}

	if (!status) {
		node_type = node_get_type(pnode);
		/*  Allocate dsp_streamconnect array for device, task, and
		 *  dais socket nodes. */
		if (node_type != NODE_MESSAGE) {
			num_streams = MAX_INPUTS(pnode) + MAX_OUTPUTS(pnode);
			pnode->stream_connect = kzalloc(num_streams *
					sizeof(struct dsp_streamconnect),
					GFP_KERNEL);
			if (num_streams > 0 && pnode->stream_connect == NULL)
				status = -ENOMEM;

		}
		if (!status && (node_type == NODE_TASK ||
					      node_type == NODE_DAISSOCKET)) {
			/* Allocate arrays for maintainig stream connections */
			pnode->inputs = kzalloc(MAX_INPUTS(pnode) *
					sizeof(struct stream_chnl), GFP_KERNEL);
			pnode->outputs = kzalloc(MAX_OUTPUTS(pnode) *
					sizeof(struct stream_chnl), GFP_KERNEL);
			ptask_args = &(pnode->create_args.asa.task_arg_obj);
			ptask_args->strm_in_def = kzalloc(MAX_INPUTS(pnode) *
						sizeof(struct node_strmdef),
						GFP_KERNEL);
			ptask_args->strm_out_def = kzalloc(MAX_OUTPUTS(pnode) *
						sizeof(struct node_strmdef),
						GFP_KERNEL);
			if ((MAX_INPUTS(pnode) > 0 && (pnode->inputs == NULL ||
						       ptask_args->strm_in_def
						       == NULL))
			    || (MAX_OUTPUTS(pnode) > 0
				&& (pnode->outputs == NULL
				    || ptask_args->strm_out_def == NULL)))
				status = -ENOMEM;
		}
	}
	if (!status && (node_type != NODE_DEVICE)) {
		/* Create an event that will be posted when RMS_EXIT is
		 * received. */
		pnode->sync_done = kzalloc(sizeof(struct sync_object),
								GFP_KERNEL);
		if (pnode->sync_done)
			sync_init_event(pnode->sync_done);
		else
			status = -ENOMEM;

		if (!status) {
			/*Get the shared mem mgr for this nodes dev object */
			status = cmm_get_handle(hprocessor, &hcmm_mgr);
			if (!status) {
				/* Allocate a SM addr translator for this node
				 * w/ deflt attr */
				status = cmm_xlator_create(&pnode->xlator,
							   hcmm_mgr, NULL);
			}
		}
		if (!status) {
			/* Fill in message args */
			if ((pargs != NULL) && (pargs->cb_data > 0)) {
				pmsg_args =
				    &(pnode->create_args.asa.node_msg_args);
				pmsg_args->pdata = kzalloc(pargs->cb_data,
								GFP_KERNEL);
				if (pmsg_args->pdata == NULL) {
					status = -ENOMEM;
				} else {
					pmsg_args->arg_length = pargs->cb_data;
					memcpy(pmsg_args->pdata,
					       pargs->node_data,
					       pargs->cb_data);
				}
			}
		}
	}

	if (!status && node_type != NODE_DEVICE) {
		/* Create a message queue for this node */
		intf_fxns = hnode_mgr->intf_fxns;
		status =
		    (*intf_fxns->pfn_msg_create_queue) (hnode_mgr->msg_mgr_obj,
							&pnode->msg_queue_obj,
							0,
							pnode->create_args.asa.
							node_msg_args.max_msgs,
							pnode);
	}

	if (!status) {
		/* Create object for dynamic loading */

		status = hnode_mgr->nldr_fxns.pfn_allocate(hnode_mgr->nldr_obj,
							   (void *)pnode,
							   &pnode->dcd_props.
							   obj_data.node_obj,
							   &pnode->
							   nldr_node_obj,
							   &pnode->phase_split);
	}

	/* Compare value read from Node Properties and check if it is same as
	 * STACKSEGLABEL, if yes read the Address of STACKSEGLABEL, calculate
	 * GPP Address, Read the value in that address and override the
	 * stack_seg value in task args */
	if (!status &&
	    (char *)pnode->dcd_props.obj_data.node_obj.ndb_props.
	    stack_seg_name != NULL) {
		if (strcmp((char *)
			   pnode->dcd_props.obj_data.node_obj.ndb_props.
			   stack_seg_name, STACKSEGLABEL) == 0) {
			status =
			    hnode_mgr->nldr_fxns.
			    pfn_get_fxn_addr(pnode->nldr_node_obj, "DYNEXT_BEG",
					     &dynext_base);
			if (status)
				pr_err("%s: Failed to get addr for DYNEXT_BEG"
				       " status = 0x%x\n", __func__, status);

			status =
			    hnode_mgr->nldr_fxns.
			    pfn_get_fxn_addr(pnode->nldr_node_obj,
					     "L1DSRAM_HEAP", &pul_value);

			if (status)
				pr_err("%s: Failed to get addr for L1DSRAM_HEAP"
				       " status = 0x%x\n", __func__, status);

			host_res = pbridge_context->resources;
			if (!host_res)
				status = -EPERM;

			if (status) {
				pr_err("%s: Failed to get host resource, status"
				       " = 0x%x\n", __func__, status);
				goto func_end;
			}

			ul_gpp_mem_base = (u32) host_res->dw_mem_base[1];
			off_set = pul_value - dynext_base;
			ul_stack_seg_addr = ul_gpp_mem_base + off_set;
			ul_stack_seg_val = readl(ul_stack_seg_addr);

			dev_dbg(bridge, "%s: StackSegVal = 0x%x, StackSegAddr ="
				" 0x%x\n", __func__, ul_stack_seg_val,
				ul_stack_seg_addr);

			pnode->create_args.asa.task_arg_obj.stack_seg =
			    ul_stack_seg_val;

		}
	}

	if (!status) {
		/* Add the node to the node manager's list of allocated
		 * nodes. */
		lst_init_elem((struct list_head *)pnode);
		NODE_SET_STATE(pnode, NODE_ALLOCATED);

		mutex_lock(&hnode_mgr->node_mgr_lock);

		lst_put_tail(hnode_mgr->node_list, (struct list_head *) pnode);
			++(hnode_mgr->num_nodes);

		/* Exit critical section */
		mutex_unlock(&hnode_mgr->node_mgr_lock);

		/* Preset this to assume phases are split
		 * (for overlay and dll) */
		pnode->phase_split = true;

		/* Notify all clients registered for DSP_NODESTATECHANGE. */
		proc_notify_all_clients(hprocessor, DSP_NODESTATECHANGE);
	} else {
		/* Cleanup */
		if (pnode)
			delete_node(pnode, pr_ctxt);

	}

	if (!status) {
		status = drv_insert_node_res_element(pnode, &node_res, pr_ctxt);
		if (status) {
			delete_node(pnode, pr_ctxt);
			goto func_end;
		}

		*noderes = (struct node_res_object *)node_res;
		drv_proc_node_update_heap_status(node_res, true);
		drv_proc_node_update_status(node_res, true);
	}
	DBC_ENSURE((status && *noderes == NULL) || (!status && *noderes));
func_end:
	dev_dbg(bridge, "%s: hprocessor: %p pNodeId: %p pargs: %p attr_in: %p "
		"node_res: %p status: 0x%x\n", __func__, hprocessor,
		node_uuid, pargs, attr_in, noderes, status);
	return status;
}