/*
* node.c
*
* DSP-BIOS Bridge driver support functions for TI OMAP processors.
*
* DSP/BIOS Bridge Node Manager.
*
* Copyright (C) 2005-2006 Texas Instruments, Inc.
*
* This package is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
#include <linux/types.h>
#include <linux/bitmap.h>
#include <linux/list.h>
/* ----------------------------------- Host OS */
#include <dspbridge/host_os.h>
/* ----------------------------------- DSP/BIOS Bridge */
#include <dspbridge/dbdefs.h>
/* ----------------------------------- Trace & Debug */
#include <dspbridge/dbc.h>
/* ----------------------------------- OS Adaptation Layer */
#include <dspbridge/memdefs.h>
#include <dspbridge/proc.h>
#include <dspbridge/strm.h>
#include <dspbridge/sync.h>
#include <dspbridge/ntfy.h>
/* ----------------------------------- Platform Manager */
#include <dspbridge/cmm.h>
#include <dspbridge/cod.h>
#include <dspbridge/dev.h>
#include <dspbridge/msg.h>
/* ----------------------------------- Resource Manager */
#include <dspbridge/dbdcd.h>
#include <dspbridge/disp.h>
#include <dspbridge/rms_sh.h>
/* ----------------------------------- Link Driver */
#include <dspbridge/dspdefs.h>
#include <dspbridge/dspioctl.h>
/* ----------------------------------- Others */
#include <dspbridge/uuidutil.h>
/* ----------------------------------- This */
#include <dspbridge/nodepriv.h>
#include <dspbridge/node.h>
#include <dspbridge/dmm.h>
/* Static/Dynamic Loader includes */
#include <dspbridge/dbll.h>
#include <dspbridge/nldr.h>
#include <dspbridge/drv.h>
#include <dspbridge/resourcecleanup.h>
#include <_tiomap.h>
#include <dspbridge/dspdeh.h>
#define HOSTPREFIX "/host"
#define PIPEPREFIX "/dbpipe"
#define MAX_INPUTS(h) \
((h)->dcd_props.obj_data.node_obj.ndb_props.num_input_streams)
#define MAX_OUTPUTS(h) \
((h)->dcd_props.obj_data.node_obj.ndb_props.num_output_streams)
#define NODE_GET_PRIORITY(h) ((h)->prio)
#define NODE_SET_PRIORITY(hnode, prio) ((hnode)->prio = prio)
#define NODE_SET_STATE(hnode, state) ((hnode)->node_state = state)
#define MAXPIPES 100 /* Max # of /pipe connections (CSL limit) */
#define MAXDEVSUFFIXLEN 2 /* Max(Log base 10 of MAXPIPES, MAXSTREAMS) */
#define PIPENAMELEN (sizeof(PIPEPREFIX) + MAXDEVSUFFIXLEN)
#define HOSTNAMELEN (sizeof(HOSTPREFIX) + MAXDEVSUFFIXLEN)
#define MAXDEVNAMELEN 32 /* dsp_ndbprops.ac_name size */
#define CREATEPHASE 1
#define EXECUTEPHASE 2
#define DELETEPHASE 3
/* Define default STRM parameters */
/*
* TBD: Put in header file, make global DSP_STRMATTRS with defaults,
* or make defaults configurable.
*/
#define DEFAULTBUFSIZE 32
#define DEFAULTNBUFS 2
#define DEFAULTSEGID 0
#define DEFAULTALIGNMENT 0
#define DEFAULTTIMEOUT 10000
#define RMSQUERYSERVER 0
#define RMSCONFIGURESERVER 1
#define RMSCREATENODE 2
#define RMSEXECUTENODE 3
#define RMSDELETENODE 4
#define RMSCHANGENODEPRIORITY 5
#define RMSREADMEMORY 6
#define RMSWRITEMEMORY 7
#define RMSCOPY 8
#define MAXTIMEOUT 2000
#define NUMRMSFXNS 9
#define PWR_TIMEOUT 500 /* default PWR timeout in msec */
#define STACKSEGLABEL "L1DSRAM_HEAP" /* Label for DSP Stack Segment Addr */
/*
* ======== node_mgr ========
*/
struct node_mgr {
struct dev_object *dev_obj; /* Device object */
/* Function interface to Bridge driver */
struct bridge_drv_interface *intf_fxns;
struct dcd_manager *dcd_mgr; /* Proc/Node data manager */
struct disp_object *disp_obj; /* Node dispatcher */
struct list_head node_list; /* List of all allocated nodes */
u32 num_nodes; /* Number of nodes in node_list */
u32 num_created; /* Number of nodes *created* on DSP */
DECLARE_BITMAP(pipe_map, MAXPIPES); /* Pipe connection bitmap */
DECLARE_BITMAP(pipe_done_map, MAXPIPES); /* Pipes that are half free */
/* Channel allocation bitmap */
DECLARE_BITMAP(chnl_map, CHNL_MAXCHANNELS);
/* DMA Channel allocation bitmap */
DECLARE_BITMAP(dma_chnl_map, CHNL_MAXCHANNELS);
/* Zero-Copy Channel alloc bitmap */
DECLARE_BITMAP(zc_chnl_map, CHNL_MAXCHANNELS);
struct ntfy_object *ntfy_obj; /* Manages registered notifications */
struct mutex node_mgr_lock; /* For critical sections */
u32 fxn_addrs[NUMRMSFXNS]; /* RMS function addresses */
struct msg_mgr *msg_mgr_obj;
/* Processor properties needed by Node Dispatcher */
u32 num_chnls; /* Total number of channels */
u32 chnl_offset; /* Offset of chnl ids rsvd for RMS */
u32 chnl_buf_size; /* Buffer size for data to RMS */
int proc_family; /* eg, 5000 */
int proc_type; /* eg, 5510 */
u32 dsp_word_size; /* Size of DSP word on host bytes */
u32 dsp_data_mau_size; /* Size of DSP data MAU */
u32 dsp_mau_size; /* Size of MAU */
s32 min_pri; /* Minimum runtime priority for node */
s32 max_pri; /* Maximum runtime priority for node */
struct strm_mgr *strm_mgr_obj; /* STRM manager */
/* Loader properties */
struct nldr_object *nldr_obj; /* Handle to loader */
struct node_ldr_fxns nldr_fxns; /* Handle to loader functions */
bool loader_init; /* Loader Init function succeeded? */
};
/*
* ======== connecttype ========
*/
enum connecttype {
NOTCONNECTED = 0,
NODECONNECT,
HOSTCONNECT,
DEVICECONNECT,
};
/*
* ======== stream_chnl ========
*/
struct stream_chnl {
enum connecttype type; /* Type of stream connection */
u32 dev_id; /* pipe or channel id */
};
/*
* ======== node_object ========
*/
struct node_object {
struct list_head list_elem;
struct node_mgr *node_mgr; /* The manager of this node */
struct proc_object *processor; /* Back pointer to processor */
struct dsp_uuid node_uuid; /* Node's ID */
s32 prio; /* Node's current priority */
u32 timeout; /* Timeout for blocking NODE calls */
u32 heap_size; /* Heap Size */
u32 dsp_heap_virt_addr; /* Heap Size */
u32 gpp_heap_virt_addr; /* Heap Size */
enum node_type ntype; /* Type of node: message, task, etc */
enum node_state node_state; /* NODE_ALLOCATED, NODE_CREATED, ... */
u32 num_inputs; /* Current number of inputs */
u32 num_outputs; /* Current number of outputs */
u32 max_input_index; /* Current max input stream index */
u32 max_output_index; /* Current max output stream index */
struct stream_chnl *inputs; /* Node's input streams */
struct stream_chnl *outputs; /* Node's output streams */
struct node_createargs create_args; /* Args for node create func */
nodeenv node_env; /* Environment returned by RMS */
struct dcd_genericobj dcd_props; /* Node properties from DCD */
struct dsp_cbdata *args; /* Optional args to pass to node */
struct ntfy_object *ntfy_obj; /* Manages registered notifications */
char *str_dev_name; /* device name, if device node */
struct sync_object *sync_done; /* Synchronize node_terminate */
s32 exit_status; /* execute function return status */
/* Information needed for node_get_attr() */
void *device_owner; /* If dev node, task that owns it */
u32 num_gpp_inputs; /* Current # of from GPP streams */
u32 num_gpp_outputs; /* Current # of to GPP streams */
/* Current stream connections */
struct dsp_streamconnect *stream_connect;
/* Message queue */
struct msg_queue *msg_queue_obj;
/* These fields used for SM messaging */
struct cmm_xlatorobject *xlator; /* Node's SM addr translator */
/* Handle to pass to dynamic loader */
struct nldr_nodeobject *nldr_node_obj;
bool loaded; /* Code is (dynamically) loaded */
bool phase_split; /* Phases split in many libs or ovly */
};
/* Default buffer attributes */
static struct dsp_bufferattr node_dfltbufattrs = {
.cb_struct = 0,
.segment_id = 1,
.buf_alignment = 0,
};
static void delete_node(struct node_object *hnode,
struct process_context *pr_ctxt);
static void delete_node_mgr(struct node_mgr *hnode_mgr);
static void fill_stream_connect(struct node_object *node1,
struct node_object *node2, u32 stream1,
u32 stream2);
static void fill_stream_def(struct node_object *hnode,
struct node_strmdef *pstrm_def,
struct dsp_strmattr *pattrs);
static void free_stream(struct node_mgr *hnode_mgr, struct stream_chnl stream);
static int get_fxn_address(struct node_object *hnode, u32 * fxn_addr,
u32 phase);
static int get_node_props(struct dcd_manager *hdcd_mgr,
struct node_object *hnode,
const struct dsp_uuid *node_uuid,
struct dcd_genericobj *dcd_prop);
static int get_proc_props(struct node_mgr *hnode_mgr,
struct dev_object *hdev_obj);
static int get_rms_fxns(struct node_mgr *hnode_mgr);
static u32 ovly(void *priv_ref, u32 dsp_run_addr, u32 dsp_load_addr,
u32 ul_num_bytes, u32 mem_space);
static u32 mem_write(void *priv_ref, u32 dsp_add, void *pbuf,
u32 ul_num_bytes, u32 mem_space);
static u32 refs; /* module reference count */
/* Dynamic loader functions. */
static struct node_ldr_fxns nldr_fxns = {
nldr_allocate,
nldr_create,
nldr_delete,
nldr_exit,
nldr_get_fxn_addr,
nldr_init,
nldr_load,
nldr_unload,
};
enum node_state node_get_state(void *hnode)
{
struct node_object *pnode = (struct node_object *)hnode;
if (!pnode)
return -1;
return pnode->node_state;
}
/*
* ======== 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->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->node_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->dcd_mgr, pnode, node_uuid,
&(pnode->dcd_props));
if (status)
goto func_cont;
pnode->node_uuid = *node_uuid;
pnode->processor = hprocessor;
pnode->ntype = pnode->dcd_props.obj_data.node_obj.ndb_props.ntype;
pnode->timeout = pnode->dcd_props.obj_data.node_obj.ndb_props.timeout;
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.dsp_heap_addr = 0;
pnode->create_args.asa.task_arg_obj.dsp_heap_res_addr = 0;
pnode->create_args.asa.task_arg_obj.gpp_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.gpp_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.dsp_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.
dsp_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.dsp_heap_addr =
(u32) mapped_addr;
func_cont:
mutex_unlock(&hnode_mgr->node_mgr_lock);
if (attr_in != NULL) {
/* Overrides of NBD properties */
pnode->timeout = attr_in->timeout;
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->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.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.
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.
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->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. */
NODE_SET_STATE(pnode, NODE_ALLOCATED);
mutex_lock(&hnode_mgr->node_mgr_lock);
list_add_tail(&pnode->list_elem, &hnode_mgr->node_list);
++(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;
}
/*
* ======== node_alloc_msg_buf ========
* Purpose:
* Allocates buffer for zero copy messaging.
*/
DBAPI node_alloc_msg_buf(struct node_object *hnode, u32 usize,
struct dsp_bufferattr *pattr,
u8 **pbuffer)
{
struct node_object *pnode = (struct node_object *)hnode;
int status = 0;
bool va_flag = false;
bool set_info;
u32 proc_id;
DBC_REQUIRE(refs > 0);
DBC_REQUIRE(pbuffer != NULL);
DBC_REQUIRE(usize > 0);
if (!pnode)
status = -EFAULT;
else if (node_get_type(pnode) == NODE_DEVICE)
status = -EPERM;
if (status)
goto func_end;
if (pattr == NULL)
pattr = &node_dfltbufattrs; /* set defaults */
status = proc_get_processor_id(pnode->processor, &proc_id);
if (proc_id != DSP_UNIT) {
DBC_ASSERT(NULL);
goto func_end;
}
/* If segment ID includes MEM_SETVIRTUALSEGID then pbuffer is a
* virt address, so set this info in this node's translator
* object for future ref. If MEM_GETVIRTUALSEGID then retrieve
* virtual address from node's translator. */
if ((pattr->segment_id & MEM_SETVIRTUALSEGID) ||
(pattr->segment_id & MEM_GETVIRTUALSEGID)) {
va_flag = true;
set_info = (pattr->segment_id & MEM_SETVIRTUALSEGID) ?
true : false;
/* Clear mask bits */
pattr->segment_id &= ~MEM_MASKVIRTUALSEGID;
/* Set/get this node's translators virtual address base/size */
status = cmm_xlator_info(pnode->xlator, pbuffer, usize,
pattr->segment_id, set_info);
}
if (!status && (!va_flag)) {
if (pattr->segment_id != 1) {
/* Node supports single SM segment only. */
status = -EBADR;
}
/* Arbitrary SM buffer alignment not supported for host side
* allocs, but guaranteed for the following alignment
* values. */
switch (pattr->buf_alignment) {
case 0:
case 1:
case 2:
case 4:
break;
default:
/* alignment value not suportted */
status = -EPERM;
break;
}
if (!status) {
/* allocate physical buffer from seg_id in node's
* translator */
(void)cmm_xlator_alloc_buf(pnode->xlator, pbuffer,
usize);
if (*pbuffer == NULL) {
pr_err("%s: error - Out of shared memory\n",
__func__);
status = -ENOMEM;
}
}
}
func_end:
return status;
}
/*
* ======== node_change_priority ========
* Purpose:
* Change the priority of a node in the allocated state, or that is
* currently running or paused on the target.
*/
int node_change_priority(struct node_object *hnode, s32 prio)
{
struct node_object *pnode = (struct node_object *)hnode;
struct node_mgr *hnode_mgr = NULL;
enum node_type node_type;
enum node_state state;
int status = 0;
u32 proc_id;
DBC_REQUIRE(refs > 0);
if (!hnode || !hnode->node_mgr) {
status = -EFAULT;
} else {
hnode_mgr = hnode->node_mgr;
node_type = node_get_type(hnode);
if (node_type != NODE_TASK && node_type != NODE_DAISSOCKET)
status = -EPERM;
else if (prio < hnode_mgr->min_pri || prio > hnode_mgr->max_pri)
status = -EDOM;
}
if (status)
goto func_end;
/* Enter critical section */
mutex_lock(&hnode_mgr->node_mgr_lock);
state = node_get_state(hnode);
if (state == NODE_ALLOCATED || state == NODE_PAUSED) {
NODE_SET_PRIORITY(hnode, prio);
} else {
if (state != NODE_RUNNING) {
status = -EBADR;
goto func_cont;
}
status = proc_get_processor_id(pnode->processor, &proc_id);
if (proc_id == DSP_UNIT) {
status =
disp_node_change_priority(hnode_mgr->disp_obj,
hnode,
hnode_mgr->fxn_addrs
[RMSCHANGENODEPRIORITY],
hnode->node_env, prio);
}
if (status >= 0)
NODE_SET_PRIORITY(hnode, prio);
}
func_cont:
/* Leave critical section */
mutex_unlock(&hnode_mgr->node_mgr_lock);
func_end:
return status;
}
/*
* ======== node_connect ========
* Purpose:
* Connect two nodes on the DSP, or a node on the DSP to the GPP.
*/
int node_connect(struct node_object *node1, u32 stream1,
struct node_object *node2,
u32 stream2, struct dsp_strmattr *pattrs,
struct dsp_cbdata *conn_param)
{
struct node_mgr *hnode_mgr;
char *pstr_dev_name = NULL;
enum node_type node1_type = NODE_TASK;
enum node_type node2_type = NODE_TASK;
enum dsp_strmmode strm_mode;
struct node_strmdef *pstrm_def;
struct node_strmdef *input = NULL;
struct node_strmdef *output = NULL;
struct node_object *dev_node_obj;
struct node_object *hnode;
struct stream_chnl *pstream;
u32 pipe_id;
u32 chnl_id;
s8 chnl_mode;
u32 dw_length;
int status = 0;
DBC_REQUIRE(refs > 0);
if (!node1 || !node2)
return -EFAULT;
/* The two nodes must be on the same processor */
if (node1 != (struct node_object *)DSP_HGPPNODE &&
node2 != (struct node_object *)DSP_HGPPNODE &&
node1->node_mgr != node2->node_mgr)
return -EPERM;
/* Cannot connect a node to itself */
if (node1 == node2)
return -EPERM;
/* node_get_type() will return NODE_GPP if hnode = DSP_HGPPNODE. */
node1_type = node_get_type(node1);
node2_type = node_get_type(node2);
/* Check stream indices ranges */
if ((node1_type != NODE_GPP && node1_type != NODE_DEVICE &&
stream1 >= MAX_OUTPUTS(node1)) ||
(node2_type != NODE_GPP && node2_type != NODE_DEVICE &&
stream2 >= MAX_INPUTS(node2)))
return -EINVAL;
/*
* Only the following types of connections are allowed:
* task/dais socket < == > task/dais socket
* task/dais socket < == > device
* task/dais socket < == > GPP
*
* ie, no message nodes, and at least one task or dais
* socket node.
*/
if (node1_type == NODE_MESSAGE || node2_type == NODE_MESSAGE ||
(node1_type != NODE_TASK &&
node1_type != NODE_DAISSOCKET &&
node2_type != NODE_TASK &&
node2_type != NODE_DAISSOCKET))
return -EPERM;
/*
* Check stream mode. Default is STRMMODE_PROCCOPY.
*/
if (pattrs && pattrs->strm_mode != STRMMODE_PROCCOPY)
return -EPERM; /* illegal stream mode */
if (node1_type != NODE_GPP) {
hnode_mgr = node1->node_mgr;
} else {
DBC_ASSERT(node2 != (struct node_object *)DSP_HGPPNODE);
hnode_mgr = node2->node_mgr;
}
/* Enter critical section */
mutex_lock(&hnode_mgr->node_mgr_lock);
/* Nodes must be in the allocated state */
if (node1_type != NODE_GPP &&
node_get_state(node1) != NODE_ALLOCATED) {
status = -EBADR;
goto out_unlock;
}
if (node2_type != NODE_GPP &&
node_get_state(node2) != NODE_ALLOCATED) {
status = -EBADR;
goto out_unlock;
}
/*
* Check that stream indices for task and dais socket nodes
* are not already be used. (Device nodes checked later)
*/
if (node1_type == NODE_TASK || node1_type == NODE_DAISSOCKET) {
output = &(node1->create_args.asa.
task_arg_obj.strm_out_def[stream1]);
if (output->sz_device) {
status = -EISCONN;
goto out_unlock;
}
}
if (node2_type == NODE_TASK || node2_type == NODE_DAISSOCKET) {
input = &(node2->create_args.asa.
task_arg_obj.strm_in_def[stream2]);
if (input->sz_device) {
status = -EISCONN;
goto out_unlock;
}
}
/* Connecting two task nodes? */
if ((node1_type == NODE_TASK || node1_type == NODE_DAISSOCKET) &&
(node2_type == NODE_TASK ||
node2_type == NODE_DAISSOCKET)) {
/* Find available pipe */
pipe_id = find_first_zero_bit(hnode_mgr->pipe_map, MAXPIPES);
if (pipe_id == MAXPIPES) {
status = -ECONNREFUSED;
goto out_unlock;
}
set_bit(pipe_id, hnode_mgr->pipe_map);
node1->outputs[stream1].type = NODECONNECT;
node2->inputs[stream2].type = NODECONNECT;
node1->outputs[stream1].dev_id = pipe_id;
node2->inputs[stream2].dev_id = pipe_id;
output->sz_device = kzalloc(PIPENAMELEN + 1, GFP_KERNEL);
input->sz_device = kzalloc(PIPENAMELEN + 1, GFP_KERNEL);
if (!output->sz_device || !input->sz_device) {
/* Undo the connection */
kfree(output->sz_device);
kfree(input->sz_device);
clear_bit(pipe_id, hnode_mgr->pipe_map);
status = -ENOMEM;
goto out_unlock;
}
/* Copy "/dbpipe<pipId>" name to device names */
sprintf(output->sz_device, "%s%d", PIPEPREFIX, pipe_id);
strcpy(input->sz_device, output->sz_device);
}
/* Connecting task node to host? */
if (node1_type == NODE_GPP || node2_type == NODE_GPP) {
pstr_dev_name = kzalloc(HOSTNAMELEN + 1, GFP_KERNEL);
if (!pstr_dev_name) {
status = -ENOMEM;
goto out_unlock;
}
DBC_ASSERT((node1_type == NODE_GPP) ||
(node2_type == NODE_GPP));
chnl_mode = (node1_type == NODE_GPP) ?
CHNL_MODETODSP : CHNL_MODEFROMDSP;
/*
* Reserve a channel id. We need to put the name "/host<id>"
* in the node's create_args, but the host
* side channel will not be opened until DSPStream_Open is
* called for this node.
*/
strm_mode = pattrs ? pattrs->strm_mode : STRMMODE_PROCCOPY;
switch (strm_mode) {
case STRMMODE_RDMA:
chnl_id = find_first_zero_bit(hnode_mgr->dma_chnl_map,
CHNL_MAXCHANNELS);
if (chnl_id < CHNL_MAXCHANNELS) {
set_bit(chnl_id, hnode_mgr->dma_chnl_map);
/* dma chans are 2nd transport chnl set
* ids(e.g. 16-31) */
chnl_id = chnl_id + hnode_mgr->num_chnls;
}
break;
case STRMMODE_ZEROCOPY:
chnl_id = find_first_zero_bit(hnode_mgr->zc_chnl_map,
CHNL_MAXCHANNELS);
if (chnl_id < CHNL_MAXCHANNELS) {
set_bit(chnl_id, hnode_mgr->zc_chnl_map);
/* zero-copy chans are 3nd transport set
* (e.g. 32-47) */
chnl_id = chnl_id +
(2 * hnode_mgr->num_chnls);
}
break;
case STRMMODE_PROCCOPY:
chnl_id = find_first_zero_bit(hnode_mgr->chnl_map,
CHNL_MAXCHANNELS);
if (chnl_id < CHNL_MAXCHANNELS)
set_bit(chnl_id, hnode_mgr->chnl_map);
break;
default:
status = -EINVAL;
goto out_unlock;
}
if (chnl_id == CHNL_MAXCHANNELS) {
status = -ECONNREFUSED;
goto out_unlock;
}
if (node1 == (struct node_object *)DSP_HGPPNODE) {
node2->inputs[stream2].type = HOSTCONNECT;
node2->inputs[stream2].dev_id = chnl_id;
input->sz_device = pstr_dev_name;
} else {
node1->outputs[stream1].type = HOSTCONNECT;
node1->outputs[stream1].dev_id = chnl_id;
output->sz_device = pstr_dev_name;
}
sprintf(pstr_dev_name, "%s%d", HOSTPREFIX, chnl_id);
}
/* Connecting task node to device node? */
if ((node1_type == NODE_DEVICE) || (node2_type == NODE_DEVICE)) {
if (node2_type == NODE_DEVICE) {
/* node1 == > device */
dev_node_obj = node2;
hnode = node1;
pstream = &(node1->outputs[stream1]);
pstrm_def = output;
} else {
/* device == > node2 */
dev_node_obj = node1;
hnode = node2;
pstream = &(node2->inputs[stream2]);
pstrm_def = input;
}
/* Set up create args */
pstream->type = DEVICECONNECT;
dw_length = strlen(dev_node_obj->str_dev_name);
if (conn_param)
pstrm_def->sz_device = kzalloc(dw_length + 1 +
conn_param->cb_data,
GFP_KERNEL);
else
pstrm_def->sz_device = kzalloc(dw_length + 1,
GFP_KERNEL);
if (!pstrm_def->sz_device) {
status = -ENOMEM;
goto out_unlock;
}
/* Copy device name */
strncpy(pstrm_def->sz_device,
dev_node_obj->str_dev_name, dw_length);
if (conn_param)
strncat(pstrm_def->sz_device,
(char *)conn_param->node_data,
(u32) conn_param->cb_data);
dev_node_obj->device_owner = hnode;
}
/* Fill in create args */
if (node1_type == NODE_TASK || node1_type == NODE_DAISSOCKET) {
node1->create_args.asa.task_arg_obj.num_outputs++;
fill_stream_def(node1, output, pattrs);
}
if (node2_type == NODE_TASK || node2_type == NODE_DAISSOCKET) {
node2->create_args.asa.task_arg_obj.num_inputs++;
fill_stream_def(node2, input, pattrs);
}
/* Update node1 and node2 stream_connect */
if (node1_type != NODE_GPP && node1_type != NODE_DEVICE) {
node1->num_outputs++;
if (stream1 > node1->max_output_index)
node1->max_output_index = stream1;
}
if (node2_type != NODE_GPP && node2_type != NODE_DEVICE) {
node2->num_inputs++;
if (stream2 > node2->max_input_index)
node2->max_input_index = stream2;
}
fill_stream_connect(node1, node2, stream1, stream2);
/* end of sync_enter_cs */
/* Exit critical section */
out_unlock:
if (status && pstr_dev_name)
kfree(pstr_dev_name);
mutex_unlock(&hnode_mgr->node_mgr_lock);
dev_dbg(bridge, "%s: node1: %p stream1: %d node2: %p stream2: %d"
"pattrs: %p status: 0x%x\n", __func__, node1,
stream1, node2, stream2, pattrs, status);
return status;
}
/*
* ======== node_create ========
* Purpose:
* Create a node on the DSP by remotely calling the node's create function.
*/
int node_create(struct node_object *hnode)
{
struct node_object *pnode = (struct node_object *)hnode;
struct node_mgr *hnode_mgr;
struct bridge_drv_interface *intf_fxns;
u32 ul_create_fxn;
enum node_type node_type;
int status = 0;
int status1 = 0;
struct dsp_cbdata cb_data;
u32 proc_id = 255;
struct dsp_processorstate proc_state;
struct proc_object *hprocessor;
#if defined(CONFIG_TIDSPBRIDGE_DVFS) && !defined(CONFIG_CPU_FREQ)
struct dspbridge_platform_data *pdata =
omap_dspbridge_dev->dev.platform_data;
#endif
DBC_REQUIRE(refs > 0);
if (!pnode) {
status = -EFAULT;
goto func_end;
}
hprocessor = hnode->processor;
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 create
new node */
if (proc_state.proc_state == PROC_ERROR) {
status = -EPERM;
goto func_end;
}
/* create struct dsp_cbdata struct for PWR calls */
cb_data.cb_data = PWR_TIMEOUT;
node_type = node_get_type(hnode);
hnode_mgr = hnode->node_mgr;
intf_fxns = hnode_mgr->intf_fxns;
/* Get access to node dispatcher */
mutex_lock(&hnode_mgr->node_mgr_lock);
/* Check node state */
if (node_get_state(hnode) != NODE_ALLOCATED)
status = -EBADR;
if (!status)
status = proc_get_processor_id(pnode->processor, &proc_id);
if (status)
goto func_cont2;
if (proc_id != DSP_UNIT)
goto func_cont2;
/* Make sure streams are properly connected */
if ((hnode->num_inputs && hnode->max_input_index >
hnode->num_inputs - 1) ||
(hnode->num_outputs && hnode->max_output_index >
hnode->num_outputs - 1))
status = -ENOTCONN;
if (!status) {
/* If node's create function is not loaded, load it */
/* Boost the OPP level to max level that DSP can be requested */
#if defined(CONFIG_TIDSPBRIDGE_DVFS) && !defined(CONFIG_CPU_FREQ)
if (pdata->cpu_set_freq)
(*pdata->cpu_set_freq) (pdata->mpu_speed[VDD1_OPP3]);
#endif
status = hnode_mgr->nldr_fxns.load(hnode->nldr_node_obj,
NLDR_CREATE);
/* Get address of node's create function */
if (!status) {
hnode->loaded = true;
if (node_type != NODE_DEVICE) {
status = get_fxn_address(hnode, &ul_create_fxn,
CREATEPHASE);
}
} else {
pr_err("%s: failed to load create code: 0x%x\n",
__func__, status);
}
/* Request the lowest OPP level */
#if defined(CONFIG_TIDSPBRIDGE_DVFS) && !defined(CONFIG_CPU_FREQ)
if (pdata->cpu_set_freq)
(*pdata->cpu_set_freq) (pdata->mpu_speed[VDD1_OPP1]);
#endif
/* Get address of iAlg functions, if socket node */
if (!status) {
if (node_type == NODE_DAISSOCKET) {
status = hnode_mgr->nldr_fxns.get_fxn_addr
(hnode->nldr_node_obj,
hnode->dcd_props.obj_data.node_obj.
str_i_alg_name,
&hnode->create_args.asa.
task_arg_obj.dais_arg);
}
}
}
if (!status) {
if (node_type != NODE_DEVICE) {
status = disp_node_create(hnode_mgr->disp_obj, hnode,
hnode_mgr->fxn_addrs
[RMSCREATENODE],
ul_create_fxn,
&(hnode->create_args),
&(hnode->node_env));
if (status >= 0) {
/* Set the message queue id to the node env
* pointer */
intf_fxns = hnode_mgr->intf_fxns;
(*intf_fxns->msg_set_queue_id) (hnode->
msg_queue_obj,
hnode->node_env);
}
}
}
/* Phase II/Overlays: Create, execute, delete phases possibly in
* different files/sections. */
if (hnode->loaded && hnode->phase_split) {
/* If create code was dynamically loaded, we can now unload
* it. */
status1 = hnode_mgr->nldr_fxns.unload(hnode->nldr_node_obj,
NLDR_CREATE);
hnode->loaded = false;
}
if (status1)
pr_err("%s: Failed to unload create code: 0x%x\n",
__func__, status1);
func_cont2:
/* Update node state and node manager state */
if (status >= 0) {
NODE_SET_STATE(hnode, NODE_CREATED);
hnode_mgr->num_created++;
goto func_cont;
}
if (status != -EBADR) {
/* Put back in NODE_ALLOCATED state if error occurred */
NODE_SET_STATE(hnode, NODE_ALLOCATED);
}
func_cont:
/* Free access to node dispatcher */
mutex_unlock(&hnode_mgr->node_mgr_lock);
func_end:
if (status >= 0) {
proc_notify_clients(hnode->processor, DSP_NODESTATECHANGE);
ntfy_notify(hnode->ntfy_obj, DSP_NODESTATECHANGE);
}
dev_dbg(bridge, "%s: hnode: %p status: 0x%x\n", __func__,
hnode, status);
return status;
}
/*
* ======== node_create_mgr ========
* Purpose:
* Create a NODE Manager object.
*/
int node_create_mgr(struct node_mgr **node_man,
struct dev_object *hdev_obj)
{
u32 i;
struct node_mgr *node_mgr_obj = NULL;
struct disp_attr disp_attr_obj;
char *sz_zl_file = "";
struct nldr_attrs nldr_attrs_obj;
int status = 0;
u8 dev_type;
DBC_REQUIRE(refs > 0);
DBC_REQUIRE(node_man != NULL);
DBC_REQUIRE(hdev_obj != NULL);
*node_man = NULL;
/* Allocate Node manager object */
node_mgr_obj = kzalloc(sizeof(struct node_mgr), GFP_KERNEL);
if (!node_mgr_obj)
return -ENOMEM;
node_mgr_obj->dev_obj = hdev_obj;
node_mgr_obj->ntfy_obj = kmalloc(sizeof(struct ntfy_object),
GFP_KERNEL);
if (!node_mgr_obj->ntfy_obj) {
status = -ENOMEM;
goto out_err;
}
ntfy_init(node_mgr_obj->ntfy_obj);
INIT_LIST_HEAD(&node_mgr_obj->node_list);
dev_get_dev_type(hdev_obj, &dev_type);
status = dcd_create_manager(sz_zl_file, &node_mgr_obj->dcd_mgr);
if (status)
goto out_err;
status = get_proc_props(node_mgr_obj, hdev_obj);
if (status)
goto out_err;
/* Create NODE Dispatcher */
disp_attr_obj.chnl_offset = node_mgr_obj->chnl_offset;
disp_attr_obj.chnl_buf_size = node_mgr_obj->chnl_buf_size;
disp_attr_obj.proc_family = node_mgr_obj->proc_family;
disp_attr_obj.proc_type = node_mgr_obj->proc_type;
status = disp_create(&node_mgr_obj->disp_obj, hdev_obj, &disp_attr_obj);
if (status)
goto out_err;
/* Create a STRM Manager */
status = strm_create(&node_mgr_obj->strm_mgr_obj, hdev_obj);
if (status)
goto out_err;
dev_get_intf_fxns(hdev_obj, &node_mgr_obj->intf_fxns);
/* Get msg_ctrl queue manager */
dev_get_msg_mgr(hdev_obj, &node_mgr_obj->msg_mgr_obj);
mutex_init(&node_mgr_obj->node_mgr_lock);
/* Block out reserved channels */
for (i = 0; i < node_mgr_obj->chnl_offset; i++)
set_bit(i, node_mgr_obj->chnl_map);
/* Block out channels reserved for RMS */
set_bit(node_mgr_obj->chnl_offset, node_mgr_obj->chnl_map);
set_bit(node_mgr_obj->chnl_offset + 1, node_mgr_obj->chnl_map);
/* NO RM Server on the IVA */
if (dev_type != IVA_UNIT) {
/* Get addresses of any RMS functions loaded */
status = get_rms_fxns(node_mgr_obj);
if (status)
goto out_err;
}
/* Get loader functions and create loader */
node_mgr_obj->nldr_fxns = nldr_fxns; /* Dyn loader funcs */
nldr_attrs_obj.ovly = ovly;
nldr_attrs_obj.write = mem_write;
nldr_attrs_obj.dsp_word_size = node_mgr_obj->dsp_word_size;
nldr_attrs_obj.dsp_mau_size = node_mgr_obj->dsp_mau_size;
node_mgr_obj->loader_init = node_mgr_obj->nldr_fxns.init();
status = node_mgr_obj->nldr_fxns.create(&node_mgr_obj->nldr_obj,
hdev_obj,
&nldr_attrs_obj);
if (status)
goto out_err;
*node_man = node_mgr_obj;
DBC_ENSURE((status && *node_man == NULL) || (!status && *node_man));
return status;
out_err:
delete_node_mgr(node_mgr_obj);
return status;
}
/*
* ======== node_delete ========
* Purpose:
* Delete a node on the DSP by remotely calling the node's delete function.
* Loads the node's delete function if necessary. Free GPP side resources
* after node's delete function returns.
*/
int node_delete(struct node_res_object *noderes,
struct process_context *pr_ctxt)
{
struct node_object *pnode = noderes->node;
struct node_mgr *hnode_mgr;
struct proc_object *hprocessor;
struct disp_object *disp_obj;
u32 ul_delete_fxn;
enum node_type node_type;
enum node_state state;
int status = 0;
int status1 = 0;
struct dsp_cbdata cb_data;
u32 proc_id;
struct bridge_drv_interface *intf_fxns;
void *node_res = noderes;
struct dsp_processorstate proc_state;
DBC_REQUIRE(refs > 0);
if (!pnode) {
status = -EFAULT;
goto func_end;
}
/* create struct dsp_cbdata struct for PWR call */
cb_data.cb_data = PWR_TIMEOUT;
hnode_mgr = pnode->node_mgr;
hprocessor = pnode->processor;
disp_obj = hnode_mgr->disp_obj;
node_type = node_get_type(pnode);
intf_fxns = hnode_mgr->intf_fxns;
/* Enter critical section */
mutex_lock(&hnode_mgr->node_mgr_lock);
state = node_get_state(pnode);
/* Execute delete phase code for non-device node in all cases
* except when the node was only allocated. Delete phase must be
* executed even if create phase was executed, but failed.
* If the node environment pointer is non-NULL, the delete phase
* code must be executed. */
if (!(state == NODE_ALLOCATED && pnode->node_env == (u32) NULL) &&
node_type != NODE_DEVICE) {
status = proc_get_processor_id(pnode->processor, &proc_id);
if (status)
goto func_cont1;
if (proc_id == DSP_UNIT || proc_id == IVA_UNIT) {
/* If node has terminated, execute phase code will
* have already been unloaded in node_on_exit(). If the
* node is PAUSED, the execute phase is loaded, and it
* is now ok to unload it. If the node is running, we
* will unload the execute phase only after deleting
* the node. */
if (state == NODE_PAUSED && pnode->loaded &&
pnode->phase_split) {
/* Ok to unload execute code as long as node
* is not * running */
status1 =
hnode_mgr->nldr_fxns.
unload(pnode->nldr_node_obj,
NLDR_EXECUTE);
pnode->loaded = false;
NODE_SET_STATE(pnode, NODE_DONE);
}
/* Load delete phase code if not loaded or if haven't
* * unloaded EXECUTE phase */
if ((!(pnode->loaded) || (state == NODE_RUNNING)) &&
pnode->phase_split) {
status =
hnode_mgr->nldr_fxns.
load(pnode->nldr_node_obj, NLDR_DELETE);
if (!status)
pnode->loaded = true;
else
pr_err("%s: fail - load delete code:"
" 0x%x\n", __func__, status);
}
}
func_cont1:
if (!status) {
/* Unblock a thread trying to terminate the node */
(void)sync_set_event(pnode->sync_done);
if (proc_id == DSP_UNIT) {
/* ul_delete_fxn = address of node's delete
* function */
status = get_fxn_address(pnode, &ul_delete_fxn,
DELETEPHASE);
} else if (proc_id == IVA_UNIT)
ul_delete_fxn = (u32) pnode->node_env;
if (!status) {
status = proc_get_state(hprocessor,
&proc_state,
sizeof(struct
dsp_processorstate));
if (proc_state.proc_state != PROC_ERROR) {
status =
disp_node_delete(disp_obj, pnode,
hnode_mgr->
fxn_addrs
[RMSDELETENODE],
ul_delete_fxn,
pnode->node_env);
} else
NODE_SET_STATE(pnode, NODE_DONE);
/* Unload execute, if not unloaded, and delete
* function */
if (state == NODE_RUNNING &&
pnode->phase_split) {
status1 =
hnode_mgr->nldr_fxns.
unload(pnode->nldr_node_obj,
NLDR_EXECUTE);
}
if (status1)
pr_err("%s: fail - unload execute code:"
" 0x%x\n", __func__, status1);
status1 =
hnode_mgr->nldr_fxns.unload(pnode->
nldr_node_obj,
NLDR_DELETE);
pnode->loaded = false;
if (status1)
pr_err("%s: fail - unload delete code: "
"0x%x\n", __func__, status1);
}
}
}
/* Free host side resources even if a failure occurred */
/* Remove node from hnode_mgr->node_list */
list_del(&pnode->list_elem);
hnode_mgr->num_nodes--;
/* Decrement count of nodes created on DSP */
if ((state != NODE_ALLOCATED) || ((state == NODE_ALLOCATED) &&
(pnode->node_env != (u32) NULL)))
hnode_mgr->num_created--;
/* Free host-side resources allocated by node_create()
* delete_node() fails if SM buffers not freed by client! */
drv_proc_node_update_status(node_res, false);
delete_node(pnode, pr_ctxt);
/*
* Release all Node resources and its context
*/
idr_remove(pr_ctxt->node_id, ((struct node_res_object *)node_res)->id);
kfree(node_res);
/* Exit critical section */
mutex_unlock(&hnode_mgr->node_mgr_lock);
proc_notify_clients(hprocessor, DSP_NODESTATECHANGE);
func_end:
dev_dbg(bridge, "%s: pnode: %p status 0x%x\n", __func__, pnode, status);
return status;
}
/*
* ======== node_delete_mgr ========
* Purpose:
* Delete the NODE Manager.
*/
int node_delete_mgr(struct node_mgr *hnode_mgr)
{
DBC_REQUIRE(refs > 0);
if (!hnode_mgr)
return -EFAULT;
delete_node_mgr(hnode_mgr);
return 0;
}
/*
* ======== node_enum_nodes ========
* Purpose:
* Enumerate currently allocated nodes.
*/
int node_enum_nodes(struct node_mgr *hnode_mgr, void **node_tab,
u32 node_tab_size, u32 *pu_num_nodes,
u32 *pu_allocated)
{
struct node_object *hnode;
u32 i = 0;
int status = 0;
DBC_REQUIRE(refs > 0);
DBC_REQUIRE(node_tab != NULL || node_tab_size == 0);
DBC_REQUIRE(pu_num_nodes != NULL);
DBC_REQUIRE(pu_allocated != NULL);
if (!hnode_mgr) {
status = -EFAULT;
goto func_end;
}
/* Enter critical section */
mutex_lock(&hnode_mgr->node_mgr_lock);
if (hnode_mgr->num_nodes > node_tab_size) {
*pu_allocated = hnode_mgr->num_nodes;
*pu_num_nodes = 0;
status = -EINVAL;
} else {
list_for_each_entry(hnode, &hnode_mgr->node_list, list_elem)
node_tab[i++] = hnode;
*pu_allocated = *pu_num_nodes = hnode_mgr->num_nodes;
}
/* end of sync_enter_cs */
/* Exit critical section */
mutex_unlock(&hnode_mgr->node_mgr_lock);
func_end:
return status;
}
/*
* ======== node_exit ========
* Purpose:
* Discontinue usage of NODE module.
*/
void node_exit(void)
{
DBC_REQUIRE(refs > 0);
refs--;
DBC_ENSURE(refs >= 0);
}
/*
* ======== node_free_msg_buf ========
* Purpose:
* Frees the message buffer.
*/
int node_free_msg_buf(struct node_object *hnode, u8 * pbuffer,
struct dsp_bufferattr *pattr)
{
struct node_object *pnode = (struct node_object *)hnode;
int status = 0;
u32 proc_id;
DBC_REQUIRE(refs > 0);
DBC_REQUIRE(pbuffer != NULL);
DBC_REQUIRE(pnode != NULL);
DBC_REQUIRE(pnode->xlator != NULL);
if (!hnode) {
status = -EFAULT;
goto func_end;
}
status = proc_get_processor_id(pnode->processor, &proc_id);
if (proc_id == DSP_UNIT) {
if (!status) {
if (pattr == NULL) {
/* set defaults */
pattr = &node_dfltbufattrs;
}
/* Node supports single SM segment only */
if (pattr->segment_id != 1)
status = -EBADR;
/* pbuffer is clients Va. */
status = cmm_xlator_free_buf(pnode->xlator, pbuffer);
}
} else {
DBC_ASSERT(NULL); /* BUG */
}
func_end:
return status;
}
/*
* ======== node_get_attr ========
* Purpose:
* Copy the current attributes of the specified node into a dsp_nodeattr
* structure.
*/
int node_get_attr(struct node_object *hnode,
struct dsp_nodeattr *pattr, u32 attr_size)
{
struct node_mgr *hnode_mgr;
DBC_REQUIRE(refs > 0);
DBC_REQUIRE(pattr != NULL);
DBC_REQUIRE(attr_size >= sizeof(struct dsp_nodeattr));
if (!hnode)
return -EFAULT;
hnode_mgr = hnode->node_mgr;
/* Enter hnode_mgr critical section (since we're accessing
* data that could be changed by node_change_priority() and
* node_connect(). */
mutex_lock(&hnode_mgr->node_mgr_lock);
pattr->cb_struct = sizeof(struct dsp_nodeattr);
/* dsp_nodeattrin */
pattr->in_node_attr_in.cb_struct =
sizeof(struct dsp_nodeattrin);
pattr->in_node_attr_in.prio = hnode->prio;
pattr->in_node_attr_in.timeout = hnode->timeout;
pattr->in_node_attr_in.heap_size =
hnode->create_args.asa.task_arg_obj.heap_size;
pattr->in_node_attr_in.pgpp_virt_addr = (void *)
hnode->create_args.asa.task_arg_obj.gpp_heap_addr;
pattr->node_attr_inputs = hnode->num_gpp_inputs;
pattr->node_attr_outputs = hnode->num_gpp_outputs;
/* dsp_nodeinfo */
get_node_info(hnode, &(pattr->node_info));
/* end of sync_enter_cs */
/* Exit critical section */
mutex_unlock(&hnode_mgr->node_mgr_lock);
return 0;
}
/*
* ======== node_get_channel_id ========
* Purpose:
* Get the channel index reserved for a stream connection between the
* host and a node.
*/
int node_get_channel_id(struct node_object *hnode, u32 dir, u32 index,
u32 *chan_id)
{
enum node_type node_type;
int status = -EINVAL;
DBC_REQUIRE(refs > 0);
DBC_REQUIRE(dir == DSP_TONODE || dir == DSP_FROMNODE);
DBC_REQUIRE(chan_id != NULL);
if (!hnode) {
status = -EFAULT;
return status;
}
node_type = node_get_type(hnode);
if (node_type != NODE_TASK && node_type != NODE_DAISSOCKET) {
status = -EPERM;
return status;
}
if (dir == DSP_TONODE) {
if (index < MAX_INPUTS(hnode)) {
if (hnode->inputs[index].type == HOSTCONNECT) {
*chan_id = hnode->inputs[index].dev_id;
status = 0;
}
}
} else {
DBC_ASSERT(dir == DSP_FROMNODE);
if (index < MAX_OUTPUTS(hnode)) {
if (hnode->outputs[index].type == HOSTCONNECT) {
*chan_id = hnode->outputs[index].dev_id;
status = 0;
}
}
}
return status;
}
/*
* ======== node_get_message ========
* Purpose:
* Retrieve a message from a node on the DSP.
*/
int node_get_message(struct node_object *hnode,
struct dsp_msg *message, u32 utimeout)
{
struct node_mgr *hnode_mgr;
enum node_type node_type;
struct bridge_drv_interface *intf_fxns;
int status = 0;
void *tmp_buf;
struct dsp_processorstate proc_state;
struct proc_object *hprocessor;
DBC_REQUIRE(refs > 0);
DBC_REQUIRE(message != NULL);
if (!hnode) {
status = -EFAULT;
goto func_end;
}
hprocessor = hnode->processor;
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 get the
message */
if (proc_state.proc_state == PROC_ERROR) {
status = -EPERM;
goto func_end;
}
hnode_mgr = hnode->node_mgr;
node_type = node_get_type(hnode);
if (node_type != NODE_MESSAGE && node_type != NODE_TASK &&
node_type != NODE_DAISSOCKET) {
status = -EPERM;
goto func_end;
}
/* This function will block unless a message is available. Since
* DSPNode_RegisterNotify() allows notification when a message
* is available, the system can be designed so that
* DSPNode_GetMessage() is only called when a message is
* available. */
intf_fxns = hnode_mgr->intf_fxns;
status =
(*intf_fxns->msg_get) (hnode->msg_queue_obj, message, utimeout);
/* Check if message contains SM descriptor */
if (status || !(message->cmd & DSP_RMSBUFDESC))
goto func_end;
/* Translate DSP byte addr to GPP Va. */
tmp_buf = cmm_xlator_translate(hnode->xlator,
(void *)(message->arg1 *
hnode->node_mgr->
dsp_word_size), CMM_DSPPA2PA);
if (tmp_buf != NULL) {
/* now convert this GPP Pa to Va */
tmp_buf = cmm_xlator_translate(hnode->xlator, tmp_buf,
CMM_PA2VA);
if (tmp_buf != NULL) {
/* Adjust SM size in msg */
message->arg1 = (u32) tmp_buf;
message->arg2 *= hnode->node_mgr->dsp_word_size;
} else {
status = -ESRCH;
}
} else {
status = -ESRCH;
}
func_end:
dev_dbg(bridge, "%s: hnode: %p message: %p utimeout: 0x%x\n", __func__,
hnode, message, utimeout);
return status;
}
/*
* ======== node_get_nldr_obj ========
*/
int node_get_nldr_obj(struct node_mgr *hnode_mgr,
struct nldr_object **nldr_ovlyobj)
{
int status = 0;
struct node_mgr *node_mgr_obj = hnode_mgr;
DBC_REQUIRE(nldr_ovlyobj != NULL);
if (!hnode_mgr)
status = -EFAULT;
else
*nldr_ovlyobj = node_mgr_obj->nldr_obj;
DBC_ENSURE(!status || (nldr_ovlyobj != NULL && *nldr_ovlyobj == NULL));
return status;
}
/*
* ======== node_get_strm_mgr ========
* Purpose:
* Returns the Stream manager.
*/
int node_get_strm_mgr(struct node_object *hnode,
struct strm_mgr **strm_man)
{
int status = 0;
DBC_REQUIRE(refs > 0);
if (!hnode)
status = -EFAULT;
else
*strm_man = hnode->node_mgr->strm_mgr_obj;
return status;
}
/*
* ======== node_get_load_type ========
*/
enum nldr_loadtype node_get_load_type(struct node_object *hnode)
{
DBC_REQUIRE(refs > 0);
DBC_REQUIRE(hnode);
if (!hnode) {
dev_dbg(bridge, "%s: Failed. hnode: %p\n", __func__, hnode);
return -1;
} else {
return hnode->dcd_props.obj_data.node_obj.load_type;
}
}
/*
* ======== node_get_timeout ========
* Purpose:
* Returns the timeout value for this node.
*/
u32 node_get_timeout(struct node_object *hnode)
{
DBC_REQUIRE(refs > 0);
DBC_REQUIRE(hnode);
if (!hnode) {
dev_dbg(bridge, "%s: failed. hnode: %p\n", __func__, hnode);
return 0;
} else {
return hnode->timeout;
}
}
/*
* ======== node_get_type ========
* Purpose:
* Returns the node type.
*/
enum node_type node_get_type(struct node_object *hnode)
{
enum node_type node_type;
if (hnode == (struct node_object *)DSP_HGPPNODE)
node_type = NODE_GPP;
else {
if (!hnode)
node_type = -1;
else
node_type = hnode->ntype;
}
return node_type;
}
/*
* ======== node_init ========
* Purpose:
* Initialize the NODE module.
*/
bool node_init(void)
{
DBC_REQUIRE(refs >= 0);
refs++;
return true;
}
/*
* ======== node_on_exit ========
* Purpose:
* Gets called when RMS_EXIT is received for a node.
*/
void node_on_exit(struct node_object *hnode, s32 node_status)
{
if (!hnode)
return;
/* Set node state to done */
NODE_SET_STATE(hnode, NODE_DONE);
hnode->exit_status = node_status;
if (hnode->loaded && hnode->phase_split) {
(void)hnode->node_mgr->nldr_fxns.unload(hnode->
nldr_node_obj,
NLDR_EXECUTE);
hnode->loaded = false;
}
/* Unblock call to node_terminate */
(void)sync_set_event(hnode->sync_done);
/* Notify clients */
proc_notify_clients(hnode->processor, DSP_NODESTATECHANGE);
ntfy_notify(hnode->ntfy_obj, DSP_NODESTATECHANGE);
}
/*
* ======== node_pause ========
* Purpose:
* Suspend execution of a node currently running on the DSP.
*/
int node_pause(struct node_object *hnode)
{
struct node_object *pnode = (struct node_object *)hnode;
enum node_type node_type;
enum node_state state;
struct node_mgr *hnode_mgr;
int status = 0;
u32 proc_id;
struct dsp_processorstate proc_state;
struct proc_object *hprocessor;
DBC_REQUIRE(refs > 0);
if (!hnode) {
status = -EFAULT;
} else {
node_type = node_get_type(hnode);
if (node_type != NODE_TASK && node_type != NODE_DAISSOCKET)
status = -EPERM;
}
if (status)
goto func_end;
status = proc_get_processor_id(pnode->processor, &proc_id);
if (proc_id == IVA_UNIT)
status = -ENOSYS;
if (!status) {
hnode_mgr = hnode->node_mgr;
/* Enter critical section */
mutex_lock(&hnode_mgr->node_mgr_lock);
state = node_get_state(hnode);
/* Check node state */
if (state != NODE_RUNNING)
status = -EBADR;
if (status)
goto func_cont;
hprocessor = hnode->processor;
status = proc_get_state(hprocessor, &proc_state,
sizeof(struct dsp_processorstate));
if (status)
goto func_cont;
/* 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_cont;
}
status = disp_node_change_priority(hnode_mgr->disp_obj, hnode,
hnode_mgr->fxn_addrs[RMSCHANGENODEPRIORITY],
hnode->node_env, NODE_SUSPENDEDPRI);
/* Update state */
if (status >= 0)
NODE_SET_STATE(hnode, NODE_PAUSED);
func_cont:
/* End of sync_enter_cs */
/* Leave critical section */
mutex_unlock(&hnode_mgr->node_mgr_lock);
if (status >= 0) {
proc_notify_clients(hnode->processor,
DSP_NODESTATECHANGE);
ntfy_notify(hnode->ntfy_obj, DSP_NODESTATECHANGE);
}
}
func_end:
dev_dbg(bridge, "%s: hnode: %p status 0x%x\n", __func__, hnode, status);
return status;
}
/*
* ======== node_put_message ========
* Purpose:
* Send a message to a message node, task node, or XDAIS socket node. This
* function will block until the message stream can accommodate the
* message, or a timeout occurs.
*/
int node_put_message(struct node_object *hnode,
const struct dsp_msg *pmsg, u32 utimeout)
{
struct node_mgr *hnode_mgr = NULL;
enum node_type node_type;
struct bridge_drv_interface *intf_fxns;
enum node_state state;
int status = 0;
void *tmp_buf;
struct dsp_msg new_msg;
struct dsp_processorstate proc_state;
struct proc_object *hprocessor;
DBC_REQUIRE(refs > 0);
DBC_REQUIRE(pmsg != NULL);
if (!hnode) {
status = -EFAULT;
goto func_end;
}
hprocessor = hnode->processor;
status = proc_get_state(hprocessor, &proc_state,
sizeof(struct dsp_processorstate));
if (status)
goto func_end;
/* If processor is in bad state then don't attempt sending the
message */
if (proc_state.proc_state == PROC_ERROR) {
status = -EPERM;
goto func_end;
}
hnode_mgr = hnode->node_mgr;
node_type = node_get_type(hnode);
if (node_type != NODE_MESSAGE && node_type != NODE_TASK &&
node_type != NODE_DAISSOCKET)
status = -EPERM;
if (!status) {
/* Check node state. Can't send messages to a node after
* we've sent the RMS_EXIT command. There is still the
* possibility that node_terminate can be called after we've
* checked the state. Could add another SYNC object to
* prevent this (can't use node_mgr_lock, since we don't
* want to block other NODE functions). However, the node may
* still exit on its own, before this message is sent. */
mutex_lock(&hnode_mgr->node_mgr_lock);
state = node_get_state(hnode);
if (state == NODE_TERMINATING || state == NODE_DONE)
status = -EBADR;
/* end of sync_enter_cs */
mutex_unlock(&hnode_mgr->node_mgr_lock);
}
if (status)
goto func_end;
/* assign pmsg values to new msg */
new_msg = *pmsg;
/* Now, check if message contains a SM buffer descriptor */
if (pmsg->cmd & DSP_RMSBUFDESC) {
/* Translate GPP Va to DSP physical buf Ptr. */
tmp_buf = cmm_xlator_translate(hnode->xlator,
(void *)new_msg.arg1,
CMM_VA2DSPPA);
if (tmp_buf != NULL) {
/* got translation, convert to MAUs in msg */
if (hnode->node_mgr->dsp_word_size != 0) {
new_msg.arg1 =
(u32) tmp_buf /
hnode->node_mgr->dsp_word_size;
/* MAUs */
new_msg.arg2 /= hnode->node_mgr->
dsp_word_size;
} else {
pr_err("%s: dsp_word_size is zero!\n",
__func__);
status = -EPERM; /* bad DSPWordSize */
}
} else { /* failed to translate buffer address */
status = -ESRCH;
}
}
if (!status) {
intf_fxns = hnode_mgr->intf_fxns;
status = (*intf_fxns->msg_put) (hnode->msg_queue_obj,
&new_msg, utimeout);
}
func_end:
dev_dbg(bridge, "%s: hnode: %p pmsg: %p utimeout: 0x%x, "
"status 0x%x\n", __func__, hnode, pmsg, utimeout, status);
return status;
}
/*
* ======== node_register_notify ========
* Purpose:
* Register to be notified on specific events for this node.
*/
int node_register_notify(struct node_object *hnode, u32 event_mask,
u32 notify_type,
struct dsp_notification *hnotification)
{
struct bridge_drv_interface *intf_fxns;
int status = 0;
DBC_REQUIRE(refs > 0);
DBC_REQUIRE(hnotification != NULL);
if (!hnode) {
status = -EFAULT;
} else {
/* Check if event mask is a valid node related event */
if (event_mask & ~(DSP_NODESTATECHANGE | DSP_NODEMESSAGEREADY))
status = -EINVAL;
/* Check if notify type is valid */
if (notify_type != DSP_SIGNALEVENT)
status = -EINVAL;
/* Only one Notification can be registered at a
* time - Limitation */
if (event_mask == (DSP_NODESTATECHANGE | DSP_NODEMESSAGEREADY))
status = -EINVAL;
}
if (!status) {
if (event_mask == DSP_NODESTATECHANGE) {
status = ntfy_register(hnode->ntfy_obj, hnotification,
event_mask & DSP_NODESTATECHANGE,
notify_type);
} else {
/* Send Message part of event mask to msg_ctrl */
intf_fxns = hnode->node_mgr->intf_fxns;
status = (*intf_fxns->msg_register_notify)
(hnode->msg_queue_obj,
event_mask & DSP_NODEMESSAGEREADY, notify_type,
hnotification);
}
}
dev_dbg(bridge, "%s: hnode: %p event_mask: 0x%x notify_type: 0x%x "
"hnotification: %p status 0x%x\n", __func__, hnode,
event_mask, notify_type, hnotification, status);
return status;
}
/*
* ======== node_run ========
* Purpose:
* Start execution of a node's execute phase, or resume execution of a node
* that has been suspended (via NODE_NodePause()) on the DSP. Load the
* node's execute function if necessary.
*/
int node_run(struct node_object *hnode)
{
struct node_object *pnode = (struct node_object *)hnode;
struct node_mgr *hnode_mgr;
enum node_type node_type;
enum node_state state;
u32 ul_execute_fxn;
u32 ul_fxn_addr;
int status = 0;
u32 proc_id;
struct bridge_drv_interface *intf_fxns;
struct dsp_processorstate proc_state;
struct proc_object *hprocessor;
DBC_REQUIRE(refs > 0);
if (!hnode) {
status = -EFAULT;
goto func_end;
}
hprocessor = hnode->processor;
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 run the node */
if (proc_state.proc_state == PROC_ERROR) {
status = -EPERM;
goto func_end;
}
node_type = node_get_type(hnode);
if (node_type == NODE_DEVICE)
status = -EPERM;
if (status)
goto func_end;
hnode_mgr = hnode->node_mgr;
if (!hnode_mgr) {
status = -EFAULT;
goto func_end;
}
intf_fxns = hnode_mgr->intf_fxns;
/* Enter critical section */
mutex_lock(&hnode_mgr->node_mgr_lock);
state = node_get_state(hnode);
if (state != NODE_CREATED && state != NODE_PAUSED)
status = -EBADR;
if (!status)
status = proc_get_processor_id(pnode->processor, &proc_id);
if (status)
goto func_cont1;
if ((proc_id != DSP_UNIT) && (proc_id != IVA_UNIT))
goto func_cont1;
if (state == NODE_CREATED) {
/* If node's execute function is not loaded, load it */
if (!(hnode->loaded) && hnode->phase_split) {
status =
hnode_mgr->nldr_fxns.load(hnode->nldr_node_obj,
NLDR_EXECUTE);
if (!status) {
hnode->loaded = true;
} else {
pr_err("%s: fail - load execute code: 0x%x\n",
__func__, status);
}
}
if (!status) {
/* Get address of node's execute function */
if (proc_id == IVA_UNIT)
ul_execute_fxn = (u32) hnode->node_env;
else {
status = get_fxn_address(hnode, &ul_execute_fxn,
EXECUTEPHASE);
}
}
if (!status) {
ul_fxn_addr = hnode_mgr->fxn_addrs[RMSEXECUTENODE];
status =
disp_node_run(hnode_mgr->disp_obj, hnode,
ul_fxn_addr, ul_execute_fxn,
hnode->node_env);
}
} else if (state == NODE_PAUSED) {
ul_fxn_addr = hnode_mgr->fxn_addrs[RMSCHANGENODEPRIORITY];
status = disp_node_change_priority(hnode_mgr->disp_obj, hnode,
ul_fxn_addr, hnode->node_env,
NODE_GET_PRIORITY(hnode));
} else {
/* We should never get here */
DBC_ASSERT(false);
}
func_cont1:
/* Update node state. */
if (status >= 0)
NODE_SET_STATE(hnode, NODE_RUNNING);
else /* Set state back to previous value */
NODE_SET_STATE(hnode, state);
/*End of sync_enter_cs */
/* Exit critical section */
mutex_unlock(&hnode_mgr->node_mgr_lock);
if (status >= 0) {
proc_notify_clients(hnode->processor, DSP_NODESTATECHANGE);
ntfy_notify(hnode->ntfy_obj, DSP_NODESTATECHANGE);
}
func_end:
dev_dbg(bridge, "%s: hnode: %p status 0x%x\n", __func__, hnode, status);
return status;
}
/*
* ======== node_terminate ========
* Purpose:
* Signal a node running on the DSP that it should exit its execute phase
* function.
*/
int node_terminate(struct node_object *hnode, int *pstatus)
{
struct node_object *pnode = (struct node_object *)hnode;
struct node_mgr *hnode_mgr = NULL;
enum node_type node_type;
struct bridge_drv_interface *intf_fxns;
enum node_state state;
struct dsp_msg msg, killmsg;
int status = 0;
u32 proc_id, kill_time_out;
struct deh_mgr *hdeh_mgr;
struct dsp_processorstate proc_state;
DBC_REQUIRE(refs > 0);
DBC_REQUIRE(pstatus != NULL);
if (!hnode || !hnode->node_mgr) {
status = -EFAULT;
goto func_end;
}
if (pnode->processor == NULL) {
status = -EFAULT;
goto func_end;
}
status = proc_get_processor_id(pnode->processor, &proc_id);
if (!status) {
hnode_mgr = hnode->node_mgr;
node_type = node_get_type(hnode);
if (node_type != NODE_TASK && node_type != NODE_DAISSOCKET)
status = -EPERM;
}
if (!status) {
/* Check node state */
mutex_lock(&hnode_mgr->node_mgr_lock);
state = node_get_state(hnode);
if (state != NODE_RUNNING) {
status = -EBADR;
/* Set the exit status if node terminated on
* its own. */
if (state == NODE_DONE)
*pstatus = hnode->exit_status;
} else {
NODE_SET_STATE(hnode, NODE_TERMINATING);
}
/* end of sync_enter_cs */
mutex_unlock(&hnode_mgr->node_mgr_lock);
}
if (!status) {
/*
* Send exit message. Do not change state to NODE_DONE
* here. That will be done in callback.
*/
status = proc_get_state(pnode->processor, &proc_state,
sizeof(struct dsp_processorstate));
if (status)
goto func_cont;
/* If processor is in error state then don't attempt to send
* A kill task command */
if (proc_state.proc_state == PROC_ERROR) {
status = -EPERM;
goto func_cont;
}
msg.cmd = RMS_EXIT;
msg.arg1 = hnode->node_env;
killmsg.cmd = RMS_KILLTASK;
killmsg.arg1 = hnode->node_env;
intf_fxns = hnode_mgr->intf_fxns;
if (hnode->timeout > MAXTIMEOUT)
kill_time_out = MAXTIMEOUT;
else
kill_time_out = (hnode->timeout) * 2;
status = (*intf_fxns->msg_put) (hnode->msg_queue_obj, &msg,
hnode->timeout);
if (status)
goto func_cont;
/*
* Wait on synchronization object that will be
* posted in the callback on receiving RMS_EXIT
* message, or by node_delete. Check for valid hnode,
* in case posted by node_delete().
*/
status = sync_wait_on_event(hnode->sync_done,
kill_time_out / 2);
if (status != ETIME)
goto func_cont;
status = (*intf_fxns->msg_put)(hnode->msg_queue_obj,
&killmsg, hnode->timeout);
if (status)
goto func_cont;
status = sync_wait_on_event(hnode->sync_done,
kill_time_out / 2);
if (status) {
/*
* Here it goes the part of the simulation of
* the DSP exception.
*/
dev_get_deh_mgr(hnode_mgr->dev_obj, &hdeh_mgr);
if (!hdeh_mgr)
goto func_cont;
bridge_deh_notify(hdeh_mgr, DSP_SYSERROR, DSP_EXCEPTIONABORT);
}
}
func_cont:
if (!status) {
/* Enter CS before getting exit status, in case node was
* deleted. */
mutex_lock(&hnode_mgr->node_mgr_lock);
/* Make sure node wasn't deleted while we blocked */
if (!hnode) {
status = -EPERM;
} else {
*pstatus = hnode->exit_status;
dev_dbg(bridge, "%s: hnode: %p env 0x%x status 0x%x\n",
__func__, hnode, hnode->node_env, status);
}
mutex_unlock(&hnode_mgr->node_mgr_lock);
} /*End of sync_enter_cs */
func_end:
return status;
}
/*
* ======== delete_node ========
* Purpose:
* Free GPP resources allocated in node_allocate() or node_connect().
*/
static void delete_node(struct node_object *hnode,
struct process_context *pr_ctxt)
{
struct node_mgr *hnode_mgr;
struct bridge_drv_interface *intf_fxns;
u32 i;
enum node_type node_type;
struct stream_chnl stream;
struct node_msgargs node_msg_args;
struct node_taskargs task_arg_obj;
#ifdef DSP_DMM_DEBUG
struct dmm_object *dmm_mgr;
struct proc_object *p_proc_object =
(struct proc_object *)hnode->processor;
#endif
int status;
if (!hnode)
goto func_end;
hnode_mgr = hnode->node_mgr;
if (!hnode_mgr)
goto func_end;
node_type = node_get_type(hnode);
if (node_type != NODE_DEVICE) {
node_msg_args = hnode->create_args.asa.node_msg_args;
kfree(node_msg_args.pdata);
/* Free msg_ctrl queue */
if (hnode->msg_queue_obj) {
intf_fxns = hnode_mgr->intf_fxns;
(*intf_fxns->msg_delete_queue) (hnode->
msg_queue_obj);
hnode->msg_queue_obj = NULL;
}
kfree(hnode->sync_done);
/* Free all stream info */
if (hnode->inputs) {
for (i = 0; i < MAX_INPUTS(hnode); i++) {
stream = hnode->inputs[i];
free_stream(hnode_mgr, stream);
}
kfree(hnode->inputs);
hnode->inputs = NULL;
}
if (hnode->outputs) {
for (i = 0; i < MAX_OUTPUTS(hnode); i++) {
stream = hnode->outputs[i];
free_stream(hnode_mgr, stream);
}
kfree(hnode->outputs);
hnode->outputs = NULL;
}
task_arg_obj = hnode->create_args.asa.task_arg_obj;
if (task_arg_obj.strm_in_def) {
for (i = 0; i < MAX_INPUTS(hnode); i++) {
kfree(task_arg_obj.strm_in_def[i].sz_device);
task_arg_obj.strm_in_def[i].sz_device = NULL;
}
kfree(task_arg_obj.strm_in_def);
task_arg_obj.strm_in_def = NULL;
}
if (task_arg_obj.strm_out_def) {
for (i = 0; i < MAX_OUTPUTS(hnode); i++) {
kfree(task_arg_obj.strm_out_def[i].sz_device);
task_arg_obj.strm_out_def[i].sz_device = NULL;
}
kfree(task_arg_obj.strm_out_def);
task_arg_obj.strm_out_def = NULL;
}
if (task_arg_obj.dsp_heap_res_addr) {
status = proc_un_map(hnode->processor, (void *)
task_arg_obj.dsp_heap_addr,
pr_ctxt);
status = proc_un_reserve_memory(hnode->processor,
(void *)
task_arg_obj.
dsp_heap_res_addr,
pr_ctxt);
#ifdef DSP_DMM_DEBUG
status = dmm_get_handle(p_proc_object, &dmm_mgr);
if (dmm_mgr)
dmm_mem_map_dump(dmm_mgr);
else
status = DSP_EHANDLE;
#endif
}
}
if (node_type != NODE_MESSAGE) {
kfree(hnode->stream_connect);
hnode->stream_connect = NULL;
}
kfree(hnode->str_dev_name);
hnode->str_dev_name = NULL;
if (hnode->ntfy_obj) {
ntfy_delete(hnode->ntfy_obj);
kfree(hnode->ntfy_obj);
hnode->ntfy_obj = NULL;
}
/* These were allocated in dcd_get_object_def (via node_allocate) */
kfree(hnode->dcd_props.obj_data.node_obj.str_create_phase_fxn);
hnode->dcd_props.obj_data.node_obj.str_create_phase_fxn = NULL;
kfree(hnode->dcd_props.obj_data.node_obj.str_execute_phase_fxn);
hnode->dcd_props.obj_data.node_obj.str_execute_phase_fxn = NULL;
kfree(hnode->dcd_props.obj_data.node_obj.str_delete_phase_fxn);
hnode->dcd_props.obj_data.node_obj.str_delete_phase_fxn = NULL;
kfree(hnode->dcd_props.obj_data.node_obj.str_i_alg_name);
hnode->dcd_props.obj_data.node_obj.str_i_alg_name = NULL;
/* Free all SM address translator resources */
kfree(hnode->xlator);
kfree(hnode->nldr_node_obj);
hnode->nldr_node_obj = NULL;
hnode->node_mgr = NULL;
kfree(hnode);
hnode = NULL;
func_end:
return;
}
/*
* ======== delete_node_mgr ========
* Purpose:
* Frees the node manager.
*/
static void delete_node_mgr(struct node_mgr *hnode_mgr)
{
struct node_object *hnode, *tmp;
if (hnode_mgr) {
/* Free resources */
if (hnode_mgr->dcd_mgr)
dcd_destroy_manager(hnode_mgr->dcd_mgr);
/* Remove any elements remaining in lists */
list_for_each_entry_safe(hnode, tmp, &hnode_mgr->node_list,
list_elem) {
list_del(&hnode->list_elem);
delete_node(hnode, NULL);
}
mutex_destroy(&hnode_mgr->node_mgr_lock);
if (hnode_mgr->ntfy_obj) {
ntfy_delete(hnode_mgr->ntfy_obj);
kfree(hnode_mgr->ntfy_obj);
}
if (hnode_mgr->disp_obj)
disp_delete(hnode_mgr->disp_obj);
if (hnode_mgr->strm_mgr_obj)
strm_delete(hnode_mgr->strm_mgr_obj);
/* Delete the loader */
if (hnode_mgr->nldr_obj)
hnode_mgr->nldr_fxns.delete(hnode_mgr->nldr_obj);
if (hnode_mgr->loader_init)
hnode_mgr->nldr_fxns.exit();
kfree(hnode_mgr);
}
}
/*
* ======== fill_stream_connect ========
* Purpose:
* Fills stream information.
*/
static void fill_stream_connect(struct node_object *node1,
struct node_object *node2,
u32 stream1, u32 stream2)
{
u32 strm_index;
struct dsp_streamconnect *strm1 = NULL;
struct dsp_streamconnect *strm2 = NULL;
enum node_type node1_type = NODE_TASK;
enum node_type node2_type = NODE_TASK;
node1_type = node_get_type(node1);
node2_type = node_get_type(node2);
if (node1 != (struct node_object *)DSP_HGPPNODE) {
if (node1_type != NODE_DEVICE) {
strm_index = node1->num_inputs +
node1->num_outputs - 1;
strm1 = &(node1->stream_connect[strm_index]);
strm1->cb_struct = sizeof(struct dsp_streamconnect);
strm1->this_node_stream_index = stream1;
}
if (node2 != (struct node_object *)DSP_HGPPNODE) {
/* NODE == > NODE */
if (node1_type != NODE_DEVICE) {
strm1->connected_node = node2;
strm1->ui_connected_node_id = node2->node_uuid;
strm1->connected_node_stream_index = stream2;
strm1->connect_type = CONNECTTYPE_NODEOUTPUT;
}
if (node2_type != NODE_DEVICE) {
strm_index = node2->num_inputs +
node2->num_outputs - 1;
strm2 = &(node2->stream_connect[strm_index]);
strm2->cb_struct =
sizeof(struct dsp_streamconnect);
strm2->this_node_stream_index = stream2;
strm2->connected_node = node1;
strm2->ui_connected_node_id = node1->node_uuid;
strm2->connected_node_stream_index = stream1;
strm2->connect_type = CONNECTTYPE_NODEINPUT;
}
} else if (node1_type != NODE_DEVICE)
strm1->connect_type = CONNECTTYPE_GPPOUTPUT;
} else {
/* GPP == > NODE */
DBC_ASSERT(node2 != (struct node_object *)DSP_HGPPNODE);
strm_index = node2->num_inputs + node2->num_outputs - 1;
strm2 = &(node2->stream_connect[strm_index]);
strm2->cb_struct = sizeof(struct dsp_streamconnect);
strm2->this_node_stream_index = stream2;
strm2->connect_type = CONNECTTYPE_GPPINPUT;
}
}
/*
* ======== fill_stream_def ========
* Purpose:
* Fills Stream attributes.
*/
static void fill_stream_def(struct node_object *hnode,
struct node_strmdef *pstrm_def,
struct dsp_strmattr *pattrs)
{
struct node_mgr *hnode_mgr = hnode->node_mgr;
if (pattrs != NULL) {
pstrm_def->num_bufs = pattrs->num_bufs;
pstrm_def->buf_size =
pattrs->buf_size / hnode_mgr->dsp_data_mau_size;
pstrm_def->seg_id = pattrs->seg_id;
pstrm_def->buf_alignment = pattrs->buf_alignment;
pstrm_def->timeout = pattrs->timeout;
} else {
pstrm_def->num_bufs = DEFAULTNBUFS;
pstrm_def->buf_size =
DEFAULTBUFSIZE / hnode_mgr->dsp_data_mau_size;
pstrm_def->seg_id = DEFAULTSEGID;
pstrm_def->buf_alignment = DEFAULTALIGNMENT;
pstrm_def->timeout = DEFAULTTIMEOUT;
}
}
/*
* ======== free_stream ========
* Purpose:
* Updates the channel mask and frees the pipe id.
*/
static void free_stream(struct node_mgr *hnode_mgr, struct stream_chnl stream)
{
/* Free up the pipe id unless other node has not yet been deleted. */
if (stream.type == NODECONNECT) {
if (test_bit(stream.dev_id, hnode_mgr->pipe_done_map)) {
/* The other node has already been deleted */
clear_bit(stream.dev_id, hnode_mgr->pipe_done_map);
clear_bit(stream.dev_id, hnode_mgr->pipe_map);
} else {
/* The other node has not been deleted yet */
set_bit(stream.dev_id, hnode_mgr->pipe_done_map);
}
} else if (stream.type == HOSTCONNECT) {
if (stream.dev_id < hnode_mgr->num_chnls) {
clear_bit(stream.dev_id, hnode_mgr->chnl_map);
} else if (stream.dev_id < (2 * hnode_mgr->num_chnls)) {
/* dsp-dma */
clear_bit(stream.dev_id - (1 * hnode_mgr->num_chnls),
hnode_mgr->dma_chnl_map);
} else if (stream.dev_id < (3 * hnode_mgr->num_chnls)) {
/* zero-copy */
clear_bit(stream.dev_id - (2 * hnode_mgr->num_chnls),
hnode_mgr->zc_chnl_map);
}
}
}
/*
* ======== get_fxn_address ========
* Purpose:
* Retrieves the address for create, execute or delete phase for a node.
*/
static int get_fxn_address(struct node_object *hnode, u32 * fxn_addr,
u32 phase)
{
char *pstr_fxn_name = NULL;
struct node_mgr *hnode_mgr = hnode->node_mgr;
int status = 0;
DBC_REQUIRE(node_get_type(hnode) == NODE_TASK ||
node_get_type(hnode) == NODE_DAISSOCKET ||
node_get_type(hnode) == NODE_MESSAGE);
switch (phase) {
case CREATEPHASE:
pstr_fxn_name =
hnode->dcd_props.obj_data.node_obj.str_create_phase_fxn;
break;
case EXECUTEPHASE:
pstr_fxn_name =
hnode->dcd_props.obj_data.node_obj.str_execute_phase_fxn;
break;
case DELETEPHASE:
pstr_fxn_name =
hnode->dcd_props.obj_data.node_obj.str_delete_phase_fxn;
break;
default:
/* Should never get here */
DBC_ASSERT(false);
break;
}
status =
hnode_mgr->nldr_fxns.get_fxn_addr(hnode->nldr_node_obj,
pstr_fxn_name, fxn_addr);
return status;
}
/*
* ======== get_node_info ========
* Purpose:
* Retrieves the node information.
*/
void get_node_info(struct node_object *hnode, struct dsp_nodeinfo *node_info)
{
u32 i;
DBC_REQUIRE(hnode);
DBC_REQUIRE(node_info != NULL);
node_info->cb_struct = sizeof(struct dsp_nodeinfo);
node_info->nb_node_database_props =
hnode->dcd_props.obj_data.node_obj.ndb_props;
node_info->execution_priority = hnode->prio;
node_info->device_owner = hnode->device_owner;
node_info->number_streams = hnode->num_inputs + hnode->num_outputs;
node_info->node_env = hnode->node_env;
node_info->ns_execution_state = node_get_state(hnode);
/* Copy stream connect data */
for (i = 0; i < hnode->num_inputs + hnode->num_outputs; i++)
node_info->sc_stream_connection[i] = hnode->stream_connect[i];
}
/*
* ======== get_node_props ========
* Purpose:
* Retrieve node properties.
*/
static int get_node_props(struct dcd_manager *hdcd_mgr,
struct node_object *hnode,
const struct dsp_uuid *node_uuid,
struct dcd_genericobj *dcd_prop)
{
u32 len;
struct node_msgargs *pmsg_args;
struct node_taskargs *task_arg_obj;
enum node_type node_type = NODE_TASK;
struct dsp_ndbprops *pndb_props =
&(dcd_prop->obj_data.node_obj.ndb_props);
int status = 0;
char sz_uuid[MAXUUIDLEN];
status = dcd_get_object_def(hdcd_mgr, (struct dsp_uuid *)node_uuid,
DSP_DCDNODETYPE, dcd_prop);
if (!status) {
hnode->ntype = node_type = pndb_props->ntype;
/* Create UUID value to set in registry. */
uuid_uuid_to_string((struct dsp_uuid *)node_uuid, sz_uuid,
MAXUUIDLEN);
dev_dbg(bridge, "(node) UUID: %s\n", sz_uuid);
/* Fill in message args that come from NDB */
if (node_type != NODE_DEVICE) {
pmsg_args = &(hnode->create_args.asa.node_msg_args);
pmsg_args->seg_id =
dcd_prop->obj_data.node_obj.msg_segid;
pmsg_args->notify_type =
dcd_prop->obj_data.node_obj.msg_notify_type;
pmsg_args->max_msgs = pndb_props->message_depth;
dev_dbg(bridge, "(node) Max Number of Messages: 0x%x\n",
pmsg_args->max_msgs);
} else {
/* Copy device name */
DBC_REQUIRE(pndb_props->ac_name);
len = strlen(pndb_props->ac_name);
DBC_ASSERT(len < MAXDEVNAMELEN);
hnode->str_dev_name = kzalloc(len + 1, GFP_KERNEL);
if (hnode->str_dev_name == NULL) {
status = -ENOMEM;
} else {
strncpy(hnode->str_dev_name,
pndb_props->ac_name, len);
}
}
}
if (!status) {
/* Fill in create args that come from NDB */
if (node_type == NODE_TASK || node_type == NODE_DAISSOCKET) {
task_arg_obj = &(hnode->create_args.asa.task_arg_obj);
task_arg_obj->prio = pndb_props->prio;
task_arg_obj->stack_size = pndb_props->stack_size;
task_arg_obj->sys_stack_size =
pndb_props->sys_stack_size;
task_arg_obj->stack_seg = pndb_props->stack_seg;
dev_dbg(bridge, "(node) Priority: 0x%x Stack Size: "
"0x%x words System Stack Size: 0x%x words "
"Stack Segment: 0x%x profile count : 0x%x\n",
task_arg_obj->prio, task_arg_obj->stack_size,
task_arg_obj->sys_stack_size,
task_arg_obj->stack_seg,
pndb_props->count_profiles);
}
}
return status;
}
/*
* ======== get_proc_props ========
* Purpose:
* Retrieve the processor properties.
*/
static int get_proc_props(struct node_mgr *hnode_mgr,
struct dev_object *hdev_obj)
{
struct cfg_hostres *host_res;
struct bridge_dev_context *pbridge_context;
int status = 0;
status = dev_get_bridge_context(hdev_obj, &pbridge_context);
if (!pbridge_context)
status = -EFAULT;
if (!status) {
host_res = pbridge_context->resources;
if (!host_res)
return -EPERM;
hnode_mgr->chnl_offset = host_res->chnl_offset;
hnode_mgr->chnl_buf_size = host_res->chnl_buf_size;
hnode_mgr->num_chnls = host_res->num_chnls;
/*
* PROC will add an API to get dsp_processorinfo.
* Fill in default values for now.
*/
/* TODO -- Instead of hard coding, take from registry */
hnode_mgr->proc_family = 6000;
hnode_mgr->proc_type = 6410;
hnode_mgr->min_pri = DSP_NODE_MIN_PRIORITY;
hnode_mgr->max_pri = DSP_NODE_MAX_PRIORITY;
hnode_mgr->dsp_word_size = DSPWORDSIZE;
hnode_mgr->dsp_data_mau_size = DSPWORDSIZE;
hnode_mgr->dsp_mau_size = 1;
}
return status;
}
/*
* ======== node_get_uuid_props ========
* Purpose:
* Fetch Node UUID properties from DCD/DOF file.
*/
int node_get_uuid_props(void *hprocessor,
const struct dsp_uuid *node_uuid,
struct dsp_ndbprops *node_props)
{
struct node_mgr *hnode_mgr = NULL;
struct dev_object *hdev_obj;
int status = 0;
struct dcd_nodeprops dcd_node_props;
struct dsp_processorstate proc_state;
DBC_REQUIRE(refs > 0);
DBC_REQUIRE(hprocessor != NULL);
DBC_REQUIRE(node_uuid != NULL);
if (hprocessor == NULL || node_uuid == NULL) {
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;
}
status = proc_get_dev_object(hprocessor, &hdev_obj);
if (hdev_obj) {
status = dev_get_node_manager(hdev_obj, &hnode_mgr);
if (hnode_mgr == NULL) {
status = -EFAULT;
goto func_end;
}
}
/*
* Enter the critical section. This is needed because
* dcd_get_object_def will ultimately end up calling dbll_open/close,
* which needs to be protected in order to not corrupt the zlib manager
* (COD).
*/
mutex_lock(&hnode_mgr->node_mgr_lock);
dcd_node_props.str_create_phase_fxn = NULL;
dcd_node_props.str_execute_phase_fxn = NULL;
dcd_node_props.str_delete_phase_fxn = NULL;
dcd_node_props.str_i_alg_name = NULL;
status = dcd_get_object_def(hnode_mgr->dcd_mgr,
(struct dsp_uuid *)node_uuid, DSP_DCDNODETYPE,
(struct dcd_genericobj *)&dcd_node_props);
if (!status) {
*node_props = dcd_node_props.ndb_props;
kfree(dcd_node_props.str_create_phase_fxn);
kfree(dcd_node_props.str_execute_phase_fxn);
kfree(dcd_node_props.str_delete_phase_fxn);
kfree(dcd_node_props.str_i_alg_name);
}
/* Leave the critical section, we're done. */
mutex_unlock(&hnode_mgr->node_mgr_lock);
func_end:
return status;
}
/*
* ======== get_rms_fxns ========
* Purpose:
* Retrieve the RMS functions.
*/
static int get_rms_fxns(struct node_mgr *hnode_mgr)
{
s32 i;
struct dev_object *dev_obj = hnode_mgr->dev_obj;
int status = 0;
static char *psz_fxns[NUMRMSFXNS] = {
"RMS_queryServer", /* RMSQUERYSERVER */
"RMS_configureServer", /* RMSCONFIGURESERVER */
"RMS_createNode", /* RMSCREATENODE */
"RMS_executeNode", /* RMSEXECUTENODE */
"RMS_deleteNode", /* RMSDELETENODE */
"RMS_changeNodePriority", /* RMSCHANGENODEPRIORITY */
"RMS_readMemory", /* RMSREADMEMORY */
"RMS_writeMemory", /* RMSWRITEMEMORY */
"RMS_copy", /* RMSCOPY */
};
for (i = 0; i < NUMRMSFXNS; i++) {
status = dev_get_symbol(dev_obj, psz_fxns[i],
&(hnode_mgr->fxn_addrs[i]));
if (status) {
if (status == -ESPIPE) {
/*
* May be loaded dynamically (in the future),
* but return an error for now.
*/
dev_dbg(bridge, "%s: RMS function: %s currently"
" not loaded\n", __func__, psz_fxns[i]);
} else {
dev_dbg(bridge, "%s: Symbol not found: %s "
"status = 0x%x\n", __func__,
psz_fxns[i], status);
break;
}
}
}
return status;
}
/*
* ======== ovly ========
* Purpose:
* Called during overlay.Sends command to RMS to copy a block of data.
*/
static u32 ovly(void *priv_ref, u32 dsp_run_addr, u32 dsp_load_addr,
u32 ul_num_bytes, u32 mem_space)
{
struct node_object *hnode = (struct node_object *)priv_ref;
struct node_mgr *hnode_mgr;
u32 ul_bytes = 0;
u32 ul_size;
u32 ul_timeout;
int status = 0;
struct bridge_dev_context *hbridge_context;
/* Function interface to Bridge driver*/
struct bridge_drv_interface *intf_fxns;
DBC_REQUIRE(hnode);
hnode_mgr = hnode->node_mgr;
ul_size = ul_num_bytes / hnode_mgr->dsp_word_size;
ul_timeout = hnode->timeout;
/* Call new MemCopy function */
intf_fxns = hnode_mgr->intf_fxns;
status = dev_get_bridge_context(hnode_mgr->dev_obj, &hbridge_context);
if (!status) {
status =
(*intf_fxns->brd_mem_copy) (hbridge_context,
dsp_run_addr, dsp_load_addr,
ul_num_bytes, (u32) mem_space);
if (!status)
ul_bytes = ul_num_bytes;
else
pr_debug("%s: failed to copy brd memory, status 0x%x\n",
__func__, status);
} else {
pr_debug("%s: failed to get Bridge context, status 0x%x\n",
__func__, status);
}
return ul_bytes;
}
/*
* ======== mem_write ========
*/
static u32 mem_write(void *priv_ref, u32 dsp_add, void *pbuf,
u32 ul_num_bytes, u32 mem_space)
{
struct node_object *hnode = (struct node_object *)priv_ref;
struct node_mgr *hnode_mgr;
u16 mem_sect_type;
u32 ul_timeout;
int status = 0;
struct bridge_dev_context *hbridge_context;
/* Function interface to Bridge driver */
struct bridge_drv_interface *intf_fxns;
DBC_REQUIRE(hnode);
DBC_REQUIRE(mem_space & DBLL_CODE || mem_space & DBLL_DATA);
hnode_mgr = hnode->node_mgr;
ul_timeout = hnode->timeout;
mem_sect_type = (mem_space & DBLL_CODE) ? RMS_CODE : RMS_DATA;
/* Call new MemWrite function */
intf_fxns = hnode_mgr->intf_fxns;
status = dev_get_bridge_context(hnode_mgr->dev_obj, &hbridge_context);
status = (*intf_fxns->brd_mem_write) (hbridge_context, pbuf,
dsp_add, ul_num_bytes, mem_sect_type);
return ul_num_bytes;
}
#ifdef CONFIG_TIDSPBRIDGE_BACKTRACE
/*
* ======== node_find_addr ========
*/
int node_find_addr(struct node_mgr *node_mgr, u32 sym_addr,
u32 offset_range, void *sym_addr_output, char *sym_name)
{
struct node_object *node_obj;
int status = -ENOENT;
pr_debug("%s(0x%x, 0x%x, 0x%x, 0x%x, %s)\n", __func__,
(unsigned int) node_mgr,
sym_addr, offset_range,
(unsigned int) sym_addr_output, sym_name);
list_for_each_entry(node_obj, &node_mgr->node_list, list_elem) {
status = nldr_find_addr(node_obj->nldr_node_obj, sym_addr,
offset_range, sym_addr_output, sym_name);
if (!status)
break;
}
return status;
}
#endif