From: Ernesto Ramos Falcon <erne...@ti.com>
This patch moves processor detach implementation to bridge_release,
when a process is exiting it will be doing the detach from there
instead of relying on the user to explicitly call detach function.
This will allow a fine control on the resources that will be cleaned
once the application exits.
Signed-off-by: Ernesto Ramos Falcon <erne...@ti.com>
---
arch/arm/plat-omap/include/dspbridge/drv.h | 12 +--------
arch/arm/plat-omap/include/dspbridge/proc.h | 5 +--
drivers/dsp/bridge/pmgr/wcd.c | 7 ++---
drivers/dsp/bridge/rmgr/drv.c | 12 ----------
drivers/dsp/bridge/rmgr/drv_interface.c | 16 +++----------
drivers/dsp/bridge/rmgr/proc.c | 31 +++++++++++---------------
6 files changed, 24 insertions(+), 59 deletions(-)
diff --git a/arch/arm/plat-omap/include/dspbridge/drv.h
b/arch/arm/plat-omap/include/dspbridge/drv.h
index efc3a92..d14613f 100644
--- a/arch/arm/plat-omap/include/dspbridge/drv.h
+++ b/arch/arm/plat-omap/include/dspbridge/drv.h
@@ -173,16 +173,8 @@ struct PROCESS_CONTEXT{
/* Process State */
enum GPP_PROC_RES_STATE resState;
- /* Process ID (Same as UNIX process ID) */
- u32 pid;
-
- /* Pointer to next process context
- * (To maintain a linked list of process contexts) */
- struct PROCESS_CONTEXT *next;
-
- /* List of Processors */
- struct list_head processor_list;
- spinlock_t proc_list_lock;
+ /* Handle to Processor */
+ DSP_HPROCESSOR hProcessor;
/* DSP Node resources */
struct NODE_RES_OBJECT *pNodeList;
diff --git a/arch/arm/plat-omap/include/dspbridge/proc.h
b/arch/arm/plat-omap/include/dspbridge/proc.h
index d4896d5..935afd0 100644
--- a/arch/arm/plat-omap/include/dspbridge/proc.h
+++ b/arch/arm/plat-omap/include/dspbridge/proc.h
@@ -177,7 +177,7 @@ struct PROC_OBJECT {
* Close a DSP processor and de-allocate all (GPP) resources reserved
* for it. The Processor Object is deleted.
* Parameters:
- * hProcessor : The processor handle.
+ * pr_ctxt : The processor handle.
* Returns:
* DSP_SOK : Success.
* DSP_EHANDLE : InValid Handle.
@@ -187,8 +187,7 @@ struct PROC_OBJECT {
* Ensures:
* PROC Object is destroyed.
*/
- extern DSP_STATUS PROC_Detach(DSP_HPROCESSOR hProcessor,
- struct PROCESS_CONTEXT *pr_ctxt);
+ extern DSP_STATUS PROC_Detach(struct PROCESS_CONTEXT *pr_ctxt);
/*
* ======== PROC_EnumNodes ========
diff --git a/drivers/dsp/bridge/pmgr/wcd.c b/drivers/dsp/bridge/pmgr/wcd.c
index 70a56ed..7226b5a 100644
--- a/drivers/dsp/bridge/pmgr/wcd.c
+++ b/drivers/dsp/bridge/pmgr/wcd.c
@@ -734,14 +734,13 @@ func_end:
*/
u32 PROCWRAP_Detach(union Trapped_Args *args, void *pr_ctxt)
{
- u32 retVal;
-
GT_1trace(WCD_debugMask, GT_ENTER,
"PROCWRAP_Detach: entered args\n0x%x "
"hProceesor \n", args->ARGS_PROC_DETACH.hProcessor);
- retVal = PROC_Detach(args->ARGS_PROC_DETACH.hProcessor, pr_ctxt);
- return retVal;
+ /* PROC_Detach called at bridge_release only */
+
+ return DSP_SOK;
}
/*
diff --git a/drivers/dsp/bridge/rmgr/drv.c b/drivers/dsp/bridge/rmgr/drv.c
index 7201c95..ad49c7f 100644
--- a/drivers/dsp/bridge/rmgr/drv.c
+++ b/drivers/dsp/bridge/rmgr/drv.c
@@ -157,18 +157,6 @@ static DSP_STATUS DRV_ProcFreeNodeRes(HANDLE hPCtxt);
static DSP_STATUS DRV_ProcFreeSTRMRes(HANDLE hPCtxt);
extern enum NODE_STATE NODE_GetState(HANDLE hNode);
-/* Set the Process ID */
-DSP_STATUS DRV_ProcSetPID(HANDLE hPCtxt, s32 hProcess)
-{
- struct PROCESS_CONTEXT *pCtxt = (struct PROCESS_CONTEXT *)hPCtxt;
- DSP_STATUS status = DSP_SOK;
-
- DBC_Assert(hPCtxt != NULL);
-
- pCtxt->pid = hProcess;
- return status;
-}
-
/* Update the state of process context */
DSP_STATUS DRV_ProcUpdatestate(HANDLE hPCtxt, enum GPP_PROC_RES_STATE status)
{
diff --git a/drivers/dsp/bridge/rmgr/drv_interface.c
b/drivers/dsp/bridge/rmgr/drv_interface.c
index f0c5e35..42fb7cb 100644
--- a/drivers/dsp/bridge/rmgr/drv_interface.c
+++ b/drivers/dsp/bridge/rmgr/drv_interface.c
@@ -545,14 +545,11 @@ static int bridge_open(struct inode *ip, struct file
*filp)
* process context list.
*/
pr_ctxt = MEM_Calloc(sizeof(struct PROCESS_CONTEXT), MEM_PAGED);
- if (pr_ctxt) {
- spin_lock_init(&(pr_ctxt->proc_list_lock));
- INIT_LIST_HEAD(&(pr_ctxt->processor_list));
+ if (pr_ctxt)
DRV_ProcUpdatestate(pr_ctxt, PROC_RES_ALLOCATED);
- DRV_ProcSetPID(pr_ctxt, current->tgid);
- } else {
+ else
status = -ENOMEM;
- }
+
filp->private_data = pr_ctxt;
err:
@@ -570,7 +567,6 @@ static int bridge_release(struct inode *ip, struct file
*filp)
DSP_STATUS dsp_status;
HANDLE hDrvObject;
struct PROCESS_CONTEXT *pr_ctxt;
- struct PROC_OBJECT *proc_obj_ptr, *temp;
GT_0trace(driverTrace, GT_ENTER, "-> bridge_release\n");
@@ -584,11 +580,7 @@ static int bridge_release(struct inode *ip, struct file
*filp)
if (DSP_SUCCEEDED(dsp_status)) {
flush_signals(current);
DRV_RemoveAllResources(pr_ctxt);
- list_for_each_entry_safe(proc_obj_ptr, temp,
- &pr_ctxt->processor_list,
- proc_object) {
- PROC_Detach(proc_obj_ptr, pr_ctxt);
- }
+ PROC_Detach(pr_ctxt);
MEM_Free(pr_ctxt);
} else {
status = -EIO;
diff --git a/drivers/dsp/bridge/rmgr/proc.c b/drivers/dsp/bridge/rmgr/proc.c
index 9bb9082..8501b06 100644
--- a/drivers/dsp/bridge/rmgr/proc.c
+++ b/drivers/dsp/bridge/rmgr/proc.c
@@ -200,6 +200,11 @@ PROC_Attach(u32 uProcessor, OPTIONAL CONST struct
DSP_PROCESSORATTRIN *pAttrIn,
"uProcessor: 0x%x\n\tpAttrIn: 0x%x\n\tphProcessor:"
"0x%x\n", uProcessor, pAttrIn, phProcessor);
+ if (pr_ctxt && pr_ctxt->hProcessor) {
+ *phProcessor = pr_ctxt->hProcessor;
+ return status;
+ }
+
/* Get the Driver and Manager Object Handles */
status = CFG_GetObject((u32 *)&hDrvObject, REG_DRV_OBJECT);
if (DSP_SUCCEEDED(status)) {
@@ -309,6 +314,7 @@ PROC_Attach(u32 uProcessor, OPTIONAL CONST struct
DSP_PROCESSORATTRIN *pAttrIn,
}
if (DSP_SUCCEEDED(status)) {
*phProcessor = (DSP_HPROCESSOR)pProcObject;
+ pr_ctxt->hProcessor = *phProcessor;
(void)PROC_NotifyClients(pProcObject,
DSP_PROCESSORATTACH);
GT_0trace(PROC_DebugMask, GT_1CLASS,
@@ -322,11 +328,6 @@ PROC_Attach(u32 uProcessor, OPTIONAL CONST struct
DSP_PROCESSORATTRIN *pAttrIn,
"storage for notification \n");
MEM_FreeObject(pProcObject);
}
-#ifndef RES_CLEANUP_DISABLE
- spin_lock(&pr_ctxt->proc_list_lock);
- list_add(&pProcObject->proc_object, &pr_ctxt->processor_list);
- spin_unlock(&pr_ctxt->proc_list_lock);
-#endif
func_end:
DBC_Ensure((status == DSP_EFAIL && *phProcessor == NULL) ||
(DSP_SUCCEEDED(status) &&
@@ -548,24 +549,19 @@ DSP_STATUS PROC_Ctrl(DSP_HPROCESSOR hProcessor, u32 dwCmd,
* Destroys the Processor Object. Removes the notification from the Dev
* List.
*/
-DSP_STATUS PROC_Detach(DSP_HPROCESSOR hProcessor,
- struct PROCESS_CONTEXT *pr_ctxt)
+DSP_STATUS PROC_Detach(struct PROCESS_CONTEXT *pr_ctxt)
{
DSP_STATUS status = DSP_SOK;
- struct PROC_OBJECT *pProcObject = (struct PROC_OBJECT *)hProcessor;
+ struct PROC_OBJECT *pProcObject = NULL;
+
+ if (pr_ctxt && pr_ctxt->hProcessor)
+ pProcObject = (struct PROC_OBJECT *)pr_ctxt->hProcessor;
DBC_Require(cRefs > 0);
GT_1trace(PROC_DebugMask, GT_ENTER, "Entered PROC_Detach, args:\n\t"
- "hProcessor: 0x%x\n", hProcessor);
+ "pr_ctxt->phProcessor: 0x%x\n", *pProcObject);
if (MEM_IsValidHandle(pProcObject, PROC_SIGNATURE)) {
-#ifndef RES_CLEANUP_DISABLE
- if (pr_ctxt) {
- spin_lock(&pr_ctxt->proc_list_lock);
- list_del(&pProcObject->proc_object);
- spin_unlock(&pr_ctxt->proc_list_lock);
- }
-#endif
/* Notify the Client */
NTFY_Notify(pProcObject->hNtfy, DSP_PROCESSORDETACH);
/* Remove the notification memory */
@@ -581,6 +577,7 @@ DSP_STATUS PROC_Detach(DSP_HPROCESSOR hProcessor,
(u32)pProcObject);
/* Free the Processor Object */
MEM_FreeObject(pProcObject);
+ pr_ctxt->hProcessor = NULL;
} else {
status = DSP_EHANDLE;
GT_0trace(PROC_DebugMask, GT_7CLASS,
@@ -1634,8 +1631,6 @@ DSP_STATUS PROC_Stop(DSP_HPROCESSOR hProcessor)
}
if (DSP_SUCCEEDED((*pProcObject->pIntfFxns->pfnBrdStatus)
(pProcObject->hWmdContext, &uBrdState))) {
- /* Clean up all the resources except the current running
- * process resources */
if (uBrdState == BRD_ERROR)
WMD_DEH_ReleaseDummyMem();
}
--
1.6.2.4
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