diff options
author | Paul Mundt <lethal@linux-sh.org> | 2011-03-17 07:44:08 (GMT) |
---|---|---|
committer | Paul Mundt <lethal@linux-sh.org> | 2011-03-17 07:44:08 (GMT) |
commit | 1d2a1959fe534279cf37aba20b08c24c20840e52 (patch) | |
tree | 67c0b9aa7fe22a44bf0b4af88947799203eb8f67 /drivers/staging/tidspbridge/rmgr/proc.c | |
parent | 5a79ce76e9bb8f4b2cd8106ee36d15ee05013bcf (diff) | |
parent | 054cfaacf88865bff1dd58d305443d5d6c068a08 (diff) | |
download | linux-1d2a1959fe534279cf37aba20b08c24c20840e52.tar.xz |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into sh-latest
Diffstat (limited to 'drivers/staging/tidspbridge/rmgr/proc.c')
-rw-r--r-- | drivers/staging/tidspbridge/rmgr/proc.c | 189 |
1 files changed, 98 insertions, 91 deletions
diff --git a/drivers/staging/tidspbridge/rmgr/proc.c b/drivers/staging/tidspbridge/rmgr/proc.c index b47d7aa..c4e5c4e0 100644 --- a/drivers/staging/tidspbridge/rmgr/proc.c +++ b/drivers/staging/tidspbridge/rmgr/proc.c @@ -29,7 +29,6 @@ #include <dspbridge/dbc.h> /* ----------------------------------- OS Adaptation Layer */ -#include <dspbridge/list.h> #include <dspbridge/ntfy.h> #include <dspbridge/sync.h> /* ----------------------------------- Bridge Driver */ @@ -81,24 +80,24 @@ extern struct device *bridge; /* The proc_object structure. */ struct proc_object { struct list_head link; /* Link to next proc_object */ - struct dev_object *hdev_obj; /* Device this PROC represents */ + struct dev_object *dev_obj; /* Device this PROC represents */ u32 process; /* Process owning this Processor */ - struct mgr_object *hmgr_obj; /* Manager Object Handle */ + struct mgr_object *mgr_obj; /* Manager Object Handle */ u32 attach_count; /* Processor attach count */ u32 processor_id; /* Processor number */ - u32 utimeout; /* Time out count */ + u32 timeout; /* Time out count */ enum dsp_procstate proc_state; /* Processor state */ - u32 ul_unit; /* DDSP unit number */ + u32 unit; /* DDSP unit number */ bool is_already_attached; /* * True if the Device below has * GPP Client attached */ struct ntfy_object *ntfy_obj; /* Manages notifications */ /* Bridge Context Handle */ - struct bridge_dev_context *hbridge_context; + struct bridge_dev_context *bridge_context; /* Function interface to Bridge driver */ struct bridge_drv_interface *intf_fxns; - char *psz_last_coff; + char *last_coff; struct list_head proc_list; }; @@ -285,8 +284,8 @@ proc_attach(u32 processor_id, DBC_REQUIRE(refs > 0); DBC_REQUIRE(ph_processor != NULL); - if (pr_ctxt->hprocessor) { - *ph_processor = pr_ctxt->hprocessor; + if (pr_ctxt->processor) { + *ph_processor = pr_ctxt->processor; return status; } @@ -316,8 +315,8 @@ proc_attach(u32 processor_id, status = -ENOMEM; goto func_end; } - p_proc_object->hdev_obj = hdev_obj; - p_proc_object->hmgr_obj = hmgr_obj; + p_proc_object->dev_obj = hdev_obj; + p_proc_object->mgr_obj = hmgr_obj; p_proc_object->processor_id = dev_type; /* Store TGID instead of process handle */ p_proc_object->process = current->tgid; @@ -325,14 +324,14 @@ proc_attach(u32 processor_id, INIT_LIST_HEAD(&p_proc_object->proc_list); if (attr_in) - p_proc_object->utimeout = attr_in->utimeout; + p_proc_object->timeout = attr_in->timeout; else - p_proc_object->utimeout = PROC_DFLT_TIMEOUT; + p_proc_object->timeout = PROC_DFLT_TIMEOUT; status = dev_get_intf_fxns(hdev_obj, &p_proc_object->intf_fxns); if (!status) { status = dev_get_bridge_context(hdev_obj, - &p_proc_object->hbridge_context); + &p_proc_object->bridge_context); if (status) kfree(p_proc_object); } else @@ -357,8 +356,7 @@ proc_attach(u32 processor_id, * Return handle to this Processor Object: * Find out if the Device is already attached to a * Processor. If so, return AlreadyAttached status */ - lst_init_elem(&p_proc_object->link); - status = dev_insert_proc_object(p_proc_object->hdev_obj, + status = dev_insert_proc_object(p_proc_object->dev_obj, (u32) p_proc_object, &p_proc_object-> is_already_attached); @@ -375,7 +373,7 @@ proc_attach(u32 processor_id, } if (!status) { *ph_processor = (void *)p_proc_object; - pr_ctxt->hprocessor = *ph_processor; + pr_ctxt->processor = *ph_processor; (void)proc_notify_clients(p_proc_object, DSP_PROCESSORATTACH); } @@ -465,12 +463,12 @@ int proc_auto_start(struct cfg_devnode *dev_node_obj, status = -ENOMEM; goto func_end; } - p_proc_object->hdev_obj = hdev_obj; - p_proc_object->hmgr_obj = hmgr_obj; + p_proc_object->dev_obj = hdev_obj; + p_proc_object->mgr_obj = hmgr_obj; status = dev_get_intf_fxns(hdev_obj, &p_proc_object->intf_fxns); if (!status) status = dev_get_bridge_context(hdev_obj, - &p_proc_object->hbridge_context); + &p_proc_object->bridge_context); if (status) goto func_cont; @@ -493,8 +491,8 @@ int proc_auto_start(struct cfg_devnode *dev_node_obj, if (!status) status = proc_start(p_proc_object); } - kfree(p_proc_object->psz_last_coff); - p_proc_object->psz_last_coff = NULL; + kfree(p_proc_object->last_coff); + p_proc_object->last_coff = NULL; func_cont: kfree(p_proc_object); func_end: @@ -542,8 +540,8 @@ int proc_ctrl(void *hprocessor, u32 dw_cmd, struct dsp_cbdata * arg) /* timeout = arg->cb_data; */ status = pwr_wake_dsp(timeout); } else - if (!((*p_proc_object->intf_fxns->pfn_dev_cntrl) - (p_proc_object->hbridge_context, dw_cmd, + if (!((*p_proc_object->intf_fxns->dev_cntrl) + (p_proc_object->bridge_context, dw_cmd, arg))) { status = 0; } else { @@ -569,7 +567,7 @@ int proc_detach(struct process_context *pr_ctxt) DBC_REQUIRE(refs > 0); - p_proc_object = (struct proc_object *)pr_ctxt->hprocessor; + p_proc_object = (struct proc_object *)pr_ctxt->processor; if (p_proc_object) { /* Notify the Client */ @@ -580,14 +578,14 @@ int proc_detach(struct process_context *pr_ctxt) kfree(p_proc_object->ntfy_obj); } - kfree(p_proc_object->psz_last_coff); - p_proc_object->psz_last_coff = NULL; + kfree(p_proc_object->last_coff); + p_proc_object->last_coff = NULL; /* Remove the Proc from the DEV List */ - (void)dev_remove_proc_object(p_proc_object->hdev_obj, + (void)dev_remove_proc_object(p_proc_object->dev_obj, (u32) p_proc_object); /* Free the Processor Object */ kfree(p_proc_object); - pr_ctxt->hprocessor = NULL; + pr_ctxt->processor = NULL; } else { status = -EFAULT; } @@ -615,7 +613,7 @@ int proc_enum_nodes(void *hprocessor, void **node_tab, DBC_REQUIRE(pu_allocated != NULL); if (p_proc_object) { - if (!(dev_get_node_manager(p_proc_object->hdev_obj, + if (!(dev_get_node_manager(p_proc_object->dev_obj, &hnode_mgr))) { if (hnode_mgr) { status = node_enum_nodes(hnode_mgr, node_tab, @@ -781,12 +779,14 @@ int proc_begin_dma(void *hprocessor, void *pmpu_addr, u32 ul_size, (u32)pmpu_addr, ul_size, dir); + mutex_lock(&proc_lock); + /* find requested memory are in cached mapping information */ map_obj = find_containing_mapping(pr_ctxt, (u32) pmpu_addr, ul_size); if (!map_obj) { pr_err("%s: find_containing_mapping failed\n", __func__); status = -EFAULT; - goto err_out; + goto no_map; } if (memory_give_ownership(map_obj, (u32) pmpu_addr, ul_size, dir)) { @@ -795,6 +795,8 @@ int proc_begin_dma(void *hprocessor, void *pmpu_addr, u32 ul_size, status = -EFAULT; } +no_map: + mutex_unlock(&proc_lock); err_out: return status; @@ -819,21 +821,24 @@ int proc_end_dma(void *hprocessor, void *pmpu_addr, u32 ul_size, (u32)pmpu_addr, ul_size, dir); + mutex_lock(&proc_lock); + /* find requested memory are in cached mapping information */ map_obj = find_containing_mapping(pr_ctxt, (u32) pmpu_addr, ul_size); if (!map_obj) { pr_err("%s: find_containing_mapping failed\n", __func__); status = -EFAULT; - goto err_out; + goto no_map; } if (memory_regain_ownership(map_obj, (u32) pmpu_addr, ul_size, dir)) { pr_err("%s: InValid address parameters %p %x\n", __func__, pmpu_addr, ul_size); status = -EFAULT; - goto err_out; } +no_map: + mutex_unlock(&proc_lock); err_out: return status; } @@ -892,7 +897,7 @@ int proc_get_resource_info(void *hprocessor, u32 resource_type, case DSP_RESOURCE_DYNSARAM: case DSP_RESOURCE_DYNEXTERNAL: case DSP_RESOURCE_DYNSRAM: - status = dev_get_node_manager(p_proc_object->hdev_obj, + status = dev_get_node_manager(p_proc_object->dev_obj, &hnode_mgr); if (!hnode_mgr) { status = -EFAULT; @@ -915,11 +920,11 @@ int proc_get_resource_info(void *hprocessor, u32 resource_type, } break; case DSP_RESOURCE_PROCLOAD: - status = dev_get_io_mgr(p_proc_object->hdev_obj, &hio_mgr); + status = dev_get_io_mgr(p_proc_object->dev_obj, &hio_mgr); if (hio_mgr) status = p_proc_object->intf_fxns-> - pfn_io_get_proc_load(hio_mgr, + io_get_proc_load(hio_mgr, (struct dsp_procloadstat *) &(resource_info->result. proc_load_stat)); @@ -965,7 +970,7 @@ int proc_get_dev_object(void *hprocessor, DBC_REQUIRE(device_obj != NULL); if (p_proc_object) { - *device_obj = p_proc_object->hdev_obj; + *device_obj = p_proc_object->dev_obj; status = 0; } else { *device_obj = NULL; @@ -997,8 +1002,8 @@ int proc_get_state(void *hprocessor, if (p_proc_object) { /* First, retrieve BRD state information */ - status = (*p_proc_object->intf_fxns->pfn_brd_status) - (p_proc_object->hbridge_context, &brd_status); + status = (*p_proc_object->intf_fxns->brd_status) + (p_proc_object->bridge_context, &brd_status); if (!status) { switch (brd_status) { case BRD_STOPPED: @@ -1117,7 +1122,7 @@ int proc_load(void *hprocessor, const s32 argc_index, status = -EFAULT; goto func_end; } - dev_get_cod_mgr(p_proc_object->hdev_obj, &cod_mgr); + dev_get_cod_mgr(p_proc_object->dev_obj, &cod_mgr); if (!cod_mgr) { status = -EPERM; goto func_end; @@ -1149,7 +1154,7 @@ int proc_load(void *hprocessor, const s32 argc_index, prepend_envp(new_envp, (char **)user_envp, envp_elems, cnew_envp, sz_proc_id); /* Get the DCD Handle */ - status = mgr_get_dcd_handle(p_proc_object->hmgr_obj, + status = mgr_get_dcd_handle(p_proc_object->mgr_obj, (u32 *) &hdcd_handle); if (!status) { /* Before proceeding with new load, @@ -1158,16 +1163,16 @@ int proc_load(void *hprocessor, const s32 argc_index, * If yes, unregister nodes in previously * registered COFF. If any error occurred, * set previously registered COFF to NULL. */ - if (p_proc_object->psz_last_coff != NULL) { + if (p_proc_object->last_coff != NULL) { status = dcd_auto_unregister(hdcd_handle, p_proc_object-> - psz_last_coff); + last_coff); /* Regardless of auto unregister status, * free previously allocated * memory. */ - kfree(p_proc_object->psz_last_coff); - p_proc_object->psz_last_coff = NULL; + kfree(p_proc_object->last_coff); + p_proc_object->last_coff = NULL; } } /* On success, do cod_open_base() */ @@ -1180,7 +1185,7 @@ int proc_load(void *hprocessor, const s32 argc_index, if (!status) { /* Auto-register data base */ /* Get the DCD Handle */ - status = mgr_get_dcd_handle(p_proc_object->hmgr_obj, + status = mgr_get_dcd_handle(p_proc_object->mgr_obj, (u32 *) &hdcd_handle); if (!status) { /* Auto register nodes in specified COFF @@ -1197,15 +1202,15 @@ int proc_load(void *hprocessor, const s32 argc_index, if (status) { status = -EPERM; } else { - DBC_ASSERT(p_proc_object->psz_last_coff == + DBC_ASSERT(p_proc_object->last_coff == NULL); /* Allocate memory for pszLastCoff */ - p_proc_object->psz_last_coff = + p_proc_object->last_coff = kzalloc((strlen(user_args[0]) + 1), GFP_KERNEL); /* If memory allocated, save COFF file name */ - if (p_proc_object->psz_last_coff) { - strncpy(p_proc_object->psz_last_coff, + if (p_proc_object->last_coff) { + strncpy(p_proc_object->last_coff, (char *)user_args[0], (strlen((char *)user_args[0]) + 1)); @@ -1217,19 +1222,19 @@ int proc_load(void *hprocessor, const s32 argc_index, if (!status) { /* Create the message manager. This must be done * before calling the IOOnLoaded function. */ - dev_get_msg_mgr(p_proc_object->hdev_obj, &hmsg_mgr); + dev_get_msg_mgr(p_proc_object->dev_obj, &hmsg_mgr); if (!hmsg_mgr) { - status = msg_create(&hmsg_mgr, p_proc_object->hdev_obj, + status = msg_create(&hmsg_mgr, p_proc_object->dev_obj, (msg_onexit) node_on_exit); DBC_ASSERT(!status); - dev_set_msg_mgr(p_proc_object->hdev_obj, hmsg_mgr); + dev_set_msg_mgr(p_proc_object->dev_obj, hmsg_mgr); } } if (!status) { /* Set the Device object's message manager */ - status = dev_get_io_mgr(p_proc_object->hdev_obj, &hio_mgr); + status = dev_get_io_mgr(p_proc_object->dev_obj, &hio_mgr); if (hio_mgr) - status = (*p_proc_object->intf_fxns->pfn_io_on_loaded) + status = (*p_proc_object->intf_fxns->io_on_loaded) (hio_mgr); else status = -EFAULT; @@ -1244,7 +1249,7 @@ int proc_load(void *hprocessor, const s32 argc_index, #endif status = cod_load_base(cod_mgr, argc_index, (char **)user_args, dev_brd_write_fxn, - p_proc_object->hdev_obj, NULL); + p_proc_object->dev_obj, NULL); if (status) { if (status == -EBADF) { dev_dbg(bridge, "%s: Failure to Load the EXE\n", @@ -1264,8 +1269,8 @@ int proc_load(void *hprocessor, const s32 argc_index, } if (!status) { /* Update the Processor status to loaded */ - status = (*p_proc_object->intf_fxns->pfn_brd_set_state) - (p_proc_object->hbridge_context, BRD_LOADED); + status = (*p_proc_object->intf_fxns->brd_set_state) + (p_proc_object->bridge_context, BRD_LOADED); if (!status) { p_proc_object->proc_state = PROC_LOADED; if (p_proc_object->ntfy_obj) @@ -1285,7 +1290,7 @@ int proc_load(void *hprocessor, const s32 argc_index, /* Reset DMM structs and add an initial free chunk */ if (!status) { status = - dev_get_dmm_mgr(p_proc_object->hdev_obj, + dev_get_dmm_mgr(p_proc_object->dev_obj, &dmm_mgr); if (dmm_mgr) { /* Set dw_ext_end to DMM START u8 @@ -1306,8 +1311,8 @@ int proc_load(void *hprocessor, const s32 argc_index, kfree(new_envp); user_args[0] = pargv0; if (!status) { - if (!((*p_proc_object->intf_fxns->pfn_brd_status) - (p_proc_object->hbridge_context, &brd_state))) { + if (!((*p_proc_object->intf_fxns->brd_status) + (p_proc_object->bridge_context, &brd_state))) { pr_info("%s: Processor Loaded %s\n", __func__, pargv0); kfree(drv_datap->base_img); drv_datap->base_img = kmalloc(strlen(pargv0) + 1, @@ -1399,8 +1404,8 @@ int proc_map(void *hprocessor, void *pmpu_addr, u32 ul_size, if (!map_obj) status = -ENOMEM; else - status = (*p_proc_object->intf_fxns->pfn_brd_mem_map) - (p_proc_object->hbridge_context, pa_align, va_align, + status = (*p_proc_object->intf_fxns->brd_mem_map) + (p_proc_object->bridge_context, pa_align, va_align, size_align, ul_map_attr, map_obj->pages); } if (!status) { @@ -1477,7 +1482,7 @@ int proc_register_notify(void *hprocessor, u32 event_mask, */ if ((event_mask == 0) && status) { status = - dev_get_deh_mgr(p_proc_object->hdev_obj, + dev_get_deh_mgr(p_proc_object->dev_obj, &hdeh_mgr); status = bridge_deh_register_notify(hdeh_mgr, @@ -1486,7 +1491,7 @@ int proc_register_notify(void *hprocessor, u32 event_mask, hnotification); } } else { - status = dev_get_deh_mgr(p_proc_object->hdev_obj, + status = dev_get_deh_mgr(p_proc_object->dev_obj, &hdeh_mgr); status = bridge_deh_register_notify(hdeh_mgr, @@ -1572,7 +1577,7 @@ int proc_start(void *hprocessor) status = -EBADR; goto func_end; } - status = dev_get_cod_mgr(p_proc_object->hdev_obj, &cod_mgr); + status = dev_get_cod_mgr(p_proc_object->dev_obj, &cod_mgr); if (!cod_mgr) { status = -EFAULT; goto func_cont; @@ -1582,13 +1587,13 @@ int proc_start(void *hprocessor) if (status) goto func_cont; - status = (*p_proc_object->intf_fxns->pfn_brd_start) - (p_proc_object->hbridge_context, dw_dsp_addr); + status = (*p_proc_object->intf_fxns->brd_start) + (p_proc_object->bridge_context, dw_dsp_addr); if (status) goto func_cont; /* Call dev_create2 */ - status = dev_create2(p_proc_object->hdev_obj); + status = dev_create2(p_proc_object->dev_obj); if (!status) { p_proc_object->proc_state = PROC_RUNNING; /* Deep sleep switces off the peripheral clocks. @@ -1603,13 +1608,13 @@ int proc_start(void *hprocessor) /* Failed to Create Node Manager and DISP Object * Stop the Processor from running. Put it in STOPPED State */ (void)(*p_proc_object->intf_fxns-> - pfn_brd_stop) (p_proc_object->hbridge_context); + brd_stop) (p_proc_object->bridge_context); p_proc_object->proc_state = PROC_STOPPED; } func_cont: if (!status) { - if (!((*p_proc_object->intf_fxns->pfn_brd_status) - (p_proc_object->hbridge_context, &brd_state))) { + if (!((*p_proc_object->intf_fxns->brd_status) + (p_proc_object->bridge_context, &brd_state))) { pr_info("%s: dsp in running state\n", __func__); DBC_ASSERT(brd_state != BRD_HIBERNATION); } @@ -1647,7 +1652,7 @@ int proc_stop(void *hprocessor) goto func_end; } /* check if there are any running nodes */ - status = dev_get_node_manager(p_proc_object->hdev_obj, &hnode_mgr); + status = dev_get_node_manager(p_proc_object->dev_obj, &hnode_mgr); if (!status && hnode_mgr) { status = node_enum_nodes(hnode_mgr, &hnode, node_tab_size, &num_nodes, &nodes_allocated); @@ -1661,21 +1666,21 @@ int proc_stop(void *hprocessor) /* It is OK to stop a device that does n't have nodes OR not started */ status = (*p_proc_object->intf_fxns-> - pfn_brd_stop) (p_proc_object->hbridge_context); + brd_stop) (p_proc_object->bridge_context); if (!status) { dev_dbg(bridge, "%s: processor in standby mode\n", __func__); p_proc_object->proc_state = PROC_STOPPED; /* Destory the Node Manager, msg_ctrl Manager */ - if (!(dev_destroy2(p_proc_object->hdev_obj))) { + if (!(dev_destroy2(p_proc_object->dev_obj))) { /* Destroy the msg_ctrl by calling msg_delete */ - dev_get_msg_mgr(p_proc_object->hdev_obj, &hmsg_mgr); + dev_get_msg_mgr(p_proc_object->dev_obj, &hmsg_mgr); if (hmsg_mgr) { msg_delete(hmsg_mgr); - dev_set_msg_mgr(p_proc_object->hdev_obj, NULL); + dev_set_msg_mgr(p_proc_object->dev_obj, NULL); } if (!((*p_proc_object-> - intf_fxns->pfn_brd_status) (p_proc_object-> - hbridge_context, + intf_fxns->brd_status) (p_proc_object-> + bridge_context, &brd_state))) DBC_ASSERT(brd_state == BRD_STOPPED); } @@ -1722,13 +1727,12 @@ int proc_un_map(void *hprocessor, void *map_addr, status = dmm_un_map_memory(dmm_mgr, (u32) va_align, &size_align); /* Remove mapping from the page tables. */ if (!status) { - status = (*p_proc_object->intf_fxns->pfn_brd_mem_un_map) - (p_proc_object->hbridge_context, va_align, size_align); + status = (*p_proc_object->intf_fxns->brd_mem_un_map) + (p_proc_object->bridge_context, va_align, size_align); } - mutex_unlock(&proc_lock); if (status) - goto func_end; + goto unmap_failed; /* * A successful unmap should be followed by removal of map_obj @@ -1737,6 +1741,9 @@ int proc_un_map(void *hprocessor, void *map_addr, */ remove_mapping_information(pr_ctxt, (u32) map_addr, size_align); +unmap_failed: + mutex_unlock(&proc_lock); + func_end: dev_dbg(bridge, "%s: hprocessor: 0x%p map_addr: 0x%p status: 0x%x\n", __func__, hprocessor, map_addr, status); @@ -1821,20 +1828,20 @@ static int proc_monitor(struct proc_object *proc_obj) /* This is needed only when Device is loaded when it is * already 'ACTIVE' */ /* Destory the Node Manager, msg_ctrl Manager */ - if (!dev_destroy2(proc_obj->hdev_obj)) { + if (!dev_destroy2(proc_obj->dev_obj)) { /* Destroy the msg_ctrl by calling msg_delete */ - dev_get_msg_mgr(proc_obj->hdev_obj, &hmsg_mgr); + dev_get_msg_mgr(proc_obj->dev_obj, &hmsg_mgr); if (hmsg_mgr) { msg_delete(hmsg_mgr); - dev_set_msg_mgr(proc_obj->hdev_obj, NULL); + dev_set_msg_mgr(proc_obj->dev_obj, NULL); } } /* Place the Board in the Monitor State */ - if (!((*proc_obj->intf_fxns->pfn_brd_monitor) - (proc_obj->hbridge_context))) { + if (!((*proc_obj->intf_fxns->brd_monitor) + (proc_obj->bridge_context))) { status = 0; - if (!((*proc_obj->intf_fxns->pfn_brd_status) - (proc_obj->hbridge_context, &brd_state))) + if (!((*proc_obj->intf_fxns->brd_status) + (proc_obj->bridge_context, &brd_state))) DBC_ASSERT(brd_state == BRD_IDLE); } @@ -1931,7 +1938,7 @@ int proc_notify_all_clients(void *proc, u32 events) goto func_end; } - dev_notify_clients(p_proc_object->hdev_obj, events); + dev_notify_clients(p_proc_object->dev_obj, events); func_end: return status; |