@@ -23,21 +23,20 @@
#ifndef DSPDEH_
#define DSPDEH_
-#include <dspbridge/devdefs.h>
+struct deh_mgr;
+struct dev_object;
+struct dsp_notification;
-#include <dspbridge/dehdefs.h>
-
-extern dsp_status bridge_deh_create(struct deh_mgr **ret_deh_mgr,
+int bridge_deh_create(struct deh_mgr **ret_deh,
struct dev_object *hdev_obj);
-extern dsp_status bridge_deh_destroy(struct deh_mgr *deh_mgr);
+int bridge_deh_destroy(struct deh_mgr *deh);
-extern dsp_status bridge_deh_register_notify(struct deh_mgr *deh_mgr,
+int bridge_deh_register_notify(struct deh_mgr *deh,
u32 event_mask,
u32 notify_type,
struct dsp_notification *hnotification);
-extern void bridge_deh_notify(struct deh_mgr *deh_mgr,
- u32 ulEventMask, u32 dwErrInfo);
+void bridge_deh_notify(struct deh_mgr *deh, int event, int info);
#endif /* DSPDEH_ */
@@ -26,7 +26,6 @@
struct deh_mgr {
struct bridge_dev_context *hbridge_context; /* Bridge context. */
struct ntfy_object *ntfy_obj; /* NTFY object */
- u32 fault_addr;
/* MMU Fault DPC */
struct tasklet_struct dpc_tasklet;
@@ -16,41 +16,19 @@
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*/
-/* ----------------------------------- Host OS */
-#include <dspbridge/host_os.h>
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
#include <plat/dmtimer.h>
-/* ----------------------------------- DSP/BIOS Bridge */
-#include <dspbridge/std.h>
#include <dspbridge/dbdefs.h>
-#include <dspbridge/errbase.h>
-
-/* ----------------------------------- Trace & Debug */
-#include <dspbridge/dbc.h>
-
-/* ----------------------------------- OS Adaptation Layer */
-#include <dspbridge/cfg.h>
-#include <dspbridge/ntfy.h>
-#include <dspbridge/drv.h>
-
-/* ----------------------------------- Link Driver */
#include <dspbridge/dspdeh.h>
-
-/* ----------------------------------- Platform Manager */
#include <dspbridge/dev.h>
-#include <dspbridge/dspapi.h>
-#include <dspbridge/wdt.h>
-
-/* ------------------------------------ Hardware Abstraction Layer */
-#include <hw_defs.h>
-#include <hw_mmu.h>
-
-/* ----------------------------------- This */
#include "_tiomap.h"
#include "_deh.h"
-#include "_tiomap_mmu.h"
-#include "_tiomap_pwr.h"
+
#include <dspbridge/io_sm.h>
+#include <dspbridge/drv.h>
+#include <dspbridge/wdt.h>
/* GP Timer number to trigger interrupt for MMU-fault ISR on DSP */
#define GPTIMER_FOR_DSP_MMU_FAULT 8
@@ -60,44 +38,45 @@
#define GPTIMER_IRQ_WAIT_MAX_CNT 1000
static struct omap_dm_timer *timer;
+static u32 fault_addr;
static void mmu_fault_dpc(unsigned long data)
{
- struct deh_mgr *hdeh_mgr = (void *)data;
+ struct deh_mgr *deh = (void *)data;
- if (!hdeh_mgr)
+ if (!deh)
return;
- bridge_deh_notify(hdeh_mgr, DSP_MMUFAULT, 0);
+ bridge_deh_notify(deh, DSP_MMUFAULT, 0);
}
static irqreturn_t mmu_fault_isr(int irq, void *data)
{
- struct deh_mgr *deh_mgr_obj = data;
+ struct deh_mgr *deh = data;
struct cfg_hostres *resources;
- u32 dmmu_event_mask;
+ u32 event;
- if (!deh_mgr_obj)
+ if (!deh)
return IRQ_HANDLED;
- resources = deh_mgr_obj->hbridge_context->resources;
+ resources = deh->hbridge_context->resources;
if (!resources) {
dev_dbg(bridge, "%s: Failed to get Host Resources\n",
__func__);
return IRQ_HANDLED;
}
- hw_mmu_event_status(resources->dw_dmmu_base, &dmmu_event_mask);
- if (dmmu_event_mask == HW_MMU_TRANSLATION_FAULT) {
- hw_mmu_fault_addr_read(resources->dw_dmmu_base, &deh_mgr_obj->fault_addr);
- dev_info(bridge, "%s: status=0x%x, fault_addr=0x%x\n", __func__,
- dmmu_event_mask, deh_mgr_obj->fault_addr);
+ hw_mmu_event_status(resources->dw_dmmu_base, &event);
+ if (event == HW_MMU_TRANSLATION_FAULT) {
+ hw_mmu_fault_addr_read(resources->dw_dmmu_base, &fault_addr);
+ dev_dbg(bridge, "%s: event=0x%x, fault_addr=0x%x\n", __func__,
+ event, fault_addr);
/*
* Schedule a DPC directly. In the future, it may be
* necessary to check if DSP MMU fault is intended for
* Bridge.
*/
- tasklet_schedule(&deh_mgr_obj->dpc_tasklet);
+ tasklet_schedule(&deh->dpc_tasklet);
/* Disable the MMU events, else once we clear it will
* start to raise INTs again */
@@ -110,11 +89,11 @@ static irqreturn_t mmu_fault_isr(int irq, void *data)
return IRQ_HANDLED;
}
-dsp_status bridge_deh_create(struct deh_mgr **ret_deh_mgr,
+int bridge_deh_create(struct deh_mgr **ret_deh,
struct dev_object *hdev_obj)
{
- dsp_status status;
- struct deh_mgr *deh_mgr;
+ int status;
+ struct deh_mgr *deh;
struct bridge_dev_context *hbridge_context = NULL;
/* Message manager will be created when a file is loaded, since
@@ -123,29 +102,29 @@ dsp_status bridge_deh_create(struct deh_mgr **ret_deh_mgr,
/* Get WMD context info. */
dev_get_bridge_context(hdev_obj, &hbridge_context);
/* Allocate IO manager object: */
- deh_mgr = kzalloc(sizeof(struct deh_mgr), GFP_KERNEL);
- if (!deh_mgr) {
+ deh = kzalloc(sizeof(*deh), GFP_KERNEL);
+ if (!deh) {
status = -ENOMEM;
goto err;
}
/* Create an NTFY object to manage notifications */
- deh_mgr->ntfy_obj = kmalloc(sizeof(struct ntfy_object), GFP_KERNEL);
- if (!deh_mgr->ntfy_obj) {
+ deh->ntfy_obj = kmalloc(sizeof(struct ntfy_object), GFP_KERNEL);
+ if (!deh->ntfy_obj) {
status = -ENOMEM;
goto err;
}
- ntfy_init(deh_mgr->ntfy_obj);
+ ntfy_init(deh->ntfy_obj);
/* Create a MMUfault DPC */
- tasklet_init(&deh_mgr->dpc_tasklet, mmu_fault_dpc, (u32) deh_mgr);
+ tasklet_init(&deh->dpc_tasklet, mmu_fault_dpc, (u32) deh);
/* Fill in context structure */
- deh_mgr->hbridge_context = hbridge_context;
+ deh->hbridge_context = hbridge_context;
/* Install ISR function for DSP MMU fault */
status = request_irq(INT_DSP_MMU_IRQ, mmu_fault_isr, 0,
- "DspBridge\tiommu fault", deh_mgr);
+ "DspBridge\tiommu fault", deh);
if (status < 0)
goto err;
@@ -157,33 +136,33 @@ dsp_status bridge_deh_create(struct deh_mgr **ret_deh_mgr,
}
omap_dm_timer_disable(timer);
- *ret_deh_mgr = deh_mgr;
+ *ret_deh = deh;
return 0;
err:
- bridge_deh_destroy(deh_mgr);
- *ret_deh_mgr = NULL;
+ bridge_deh_destroy(deh);
+ *ret_deh = NULL;
return status;
}
-dsp_status bridge_deh_destroy(struct deh_mgr *deh_mgr)
+int bridge_deh_destroy(struct deh_mgr *deh)
{
- if (!deh_mgr)
+ if (!deh)
return -EFAULT;
/* If notification object exists, delete it */
- if (deh_mgr->ntfy_obj) {
- ntfy_delete(deh_mgr->ntfy_obj);
- kfree(deh_mgr->ntfy_obj);
+ if (deh->ntfy_obj) {
+ ntfy_delete(deh->ntfy_obj);
+ kfree(deh->ntfy_obj);
}
/* Disable DSP MMU fault */
- free_irq(INT_DSP_MMU_IRQ, deh_mgr);
+ free_irq(INT_DSP_MMU_IRQ, deh);
/* Free DPC object */
- tasklet_kill(&deh_mgr->dpc_tasklet);
+ tasklet_kill(&deh->dpc_tasklet);
/* Deallocate the DEH manager object */
- kfree(deh_mgr);
+ kfree(deh);
/* The GPTimer is no longer needed */
omap_dm_timer_free(timer);
@@ -192,18 +171,18 @@ dsp_status bridge_deh_destroy(struct deh_mgr *deh_mgr)
return 0;
}
-dsp_status bridge_deh_register_notify(struct deh_mgr *deh_mgr, u32 event_mask,
+int bridge_deh_register_notify(struct deh_mgr *deh, u32 event_mask,
u32 notify_type,
struct dsp_notification *hnotification)
{
- if (!deh_mgr)
+ if (!deh)
return -EFAULT;
if (event_mask)
- return ntfy_register(deh_mgr->ntfy_obj, hnotification,
+ return ntfy_register(deh->ntfy_obj, hnotification,
event_mask, notify_type);
else
- return ntfy_unregister(deh_mgr->ntfy_obj, hnotification);
+ return ntfy_unregister(deh->ntfy_obj, hnotification);
}
static void wait_for_timer(void)
@@ -233,8 +212,7 @@ static void wait_for_timer(void)
omap_dm_timer_disable(timer);
}
-static void mmu_fault_print_stack(struct bridge_dev_context *dev_context,
- u32 fault_addr)
+static void mmu_fault_print_stack(struct bridge_dev_context *dev_context)
{
struct cfg_hostres *resources;
struct hw_mmu_map_attrs_t map_attrs = {
@@ -270,51 +248,50 @@ static void mmu_fault_print_stack(struct bridge_dev_context *dev_context,
free_page((unsigned long)dummy_va_addr);
}
-void bridge_deh_notify(struct deh_mgr *deh_mgr, u32 ulEventMask, u32 dwErrInfo)
+static inline const char *event_to_string(int event)
+{
+ switch (event) {
+ case DSP_SYSERROR: return "DSP_SYSERROR"; break;
+ case DSP_MMUFAULT: return "DSP_MMUFAULT"; break;
+ case DSP_PWRERROR: return "DSP_PWRERROR"; break;
+ case DSP_WDTOVERFLOW: return "DSP_WDTOVERFLOW"; break;
+ default: return "unkown event"; break;
+ }
+}
+
+void bridge_deh_notify(struct deh_mgr *deh, int event, int info)
{
struct bridge_dev_context *dev_context;
+ const char *str = event_to_string(event);
- if (!deh_mgr)
+ if (!deh)
return;
- dev_info(bridge, "%s: device exception\n", __func__);
- dev_context = deh_mgr->hbridge_context;
+ dev_dbg(bridge, "%s: device exception", __func__);
+ dev_context = deh->hbridge_context;
- switch (ulEventMask) {
+ switch (event) {
case DSP_SYSERROR:
- dev_err(bridge, "%s: %s, err_info = 0x%x\n",
- __func__, "DSP_SYSERROR", dwErrInfo);
+ dev_err(bridge, "%s: %s, info=0x%x", __func__,
+ str, info);
dump_dl_modules(dev_context);
dump_dsp_stack(dev_context);
break;
case DSP_MMUFAULT:
- dev_err(bridge, "%s: %s, err_info = 0x%x\n",
- __func__, "DSP_MMUFAULT", dwErrInfo);
- dev_info(bridge, "%s: %s, fault=0x%x\n", __func__, "DSP_MMUFAULT",
- deh_mgr->fault_addr);
-
+ dev_err(bridge, "%s: %s, addr=0x%x", __func__,
+ str, fault_addr);
print_dsp_trace_buffer(dev_context);
dump_dl_modules(dev_context);
- mmu_fault_print_stack(dev_context, deh_mgr->fault_addr);
- break;
-#ifdef CONFIG_BRIDGE_NTFY_PWRERR
- case DSP_PWRERROR:
- dev_err(bridge, "%s: %s, err_info = 0x%x\n",
- __func__, "DSP_PWRERROR", dwErrInfo);
- break;
-#endif /* CONFIG_BRIDGE_NTFY_PWRERR */
- case DSP_WDTOVERFLOW:
- dev_err(bridge, "%s: DSP_WDTOVERFLOW\n", __func__);
+ mmu_fault_print_stack(dev_context);
break;
default:
- dev_dbg(bridge, "%s: Unknown Error, err_info = 0x%x\n",
- __func__, dwErrInfo);
+ dev_err(bridge, "%s: %s", __func__, str);
break;
}
/* Filter subsequent notifications when an error occurs */
if (dev_context->dw_brd_state != BRD_ERROR) {
- ntfy_notify(deh_mgr->ntfy_obj, ulEventMask);
+ ntfy_notify(deh->ntfy_obj, event);
#ifdef CONFIG_BRIDGE_RECOVERY
bridge_recover_schedule();
#endif