[PATCH 287/524] staging: ti dspbridge: add _BACKTRACE config
Greg Kroah-Hartman
gregkh at suse.de
Thu Aug 5 22:21:10 UTC 2010
From: Felipe Contreras <felipe.contreras at gmail.com>
We only want this code when testing.
Signed-off-by: Felipe Contreras <felipe.contreras at gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh at suse.de>
---
drivers/staging/tidspbridge/Kconfig | 7 +++++
drivers/staging/tidspbridge/core/io_sm.c | 26 ++++++++++---------
drivers/staging/tidspbridge/core/ue_deh.c | 6 ++++
drivers/staging/tidspbridge/gen/gh.c | 2 +
.../staging/tidspbridge/include/dspbridge/dbll.h | 2 +
drivers/staging/tidspbridge/include/dspbridge/gh.h | 2 +
.../staging/tidspbridge/include/dspbridge/io_sm.h | 4 ++-
.../staging/tidspbridge/include/dspbridge/nldr.h | 2 +
.../staging/tidspbridge/include/dspbridge/node.h | 2 +
drivers/staging/tidspbridge/pmgr/dbll.c | 2 +
drivers/staging/tidspbridge/rmgr/nldr.c | 2 +
drivers/staging/tidspbridge/rmgr/node.c | 3 +-
12 files changed, 46 insertions(+), 14 deletions(-)
diff --git a/drivers/staging/tidspbridge/Kconfig b/drivers/staging/tidspbridge/Kconfig
index 4d63b66..93de4f2 100644
--- a/drivers/staging/tidspbridge/Kconfig
+++ b/drivers/staging/tidspbridge/Kconfig
@@ -81,3 +81,10 @@ config TIDSPBRIDGE_NTFY_PWRERR
Enable notifications to registered clients on the event of power errror
trying to suspend bridge driver. Say Y, to signal this event as a fatal
error, this will require a bridge restart to recover.
+
+config TIDSPBRIDGE_BACKTRACE
+ bool "Dump backtraces on fatal errors"
+ depends on TIDSPBRIDGE
+ help
+ Enable useful information to backtrace fatal errors. Say Y if you
+ want to dump information for testing purposes.
diff --git a/drivers/staging/tidspbridge/core/io_sm.c b/drivers/staging/tidspbridge/core/io_sm.c
index 8909c41..1503968 100644
--- a/drivers/staging/tidspbridge/core/io_sm.c
+++ b/drivers/staging/tidspbridge/core/io_sm.c
@@ -114,7 +114,7 @@ struct io_mgr {
struct mgr_processorextinfo ext_proc_info;
struct cmm_object *hcmm_mgr; /* Shared Mem Mngr */
struct work_struct io_workq; /* workqueue */
-#ifdef CONFIG_TIDSPBRIDGE_DEBUG
+#if defined(CONFIG_TIDSPBRIDGE_BACKTRACE) || defined(CONFIG_TIDSPBRIDGE_DEBUG)
u32 ul_trace_buffer_begin; /* Trace message start address */
u32 ul_trace_buffer_end; /* Trace message end address */
u32 ul_trace_buffer_current; /* Trace message current address */
@@ -210,7 +210,7 @@ int bridge_io_create(OUT struct io_mgr **phIOMgr,
}
/* Initialize chnl_mgr object */
-#ifdef CONFIG_TIDSPBRIDGE_DEBUG
+#if defined(CONFIG_TIDSPBRIDGE_BACKTRACE) || defined(CONFIG_TIDSPBRIDGE_DEBUG)
pio_mgr->pmsg = NULL;
#endif
pio_mgr->hchnl_mgr = hchnl_mgr;
@@ -265,7 +265,7 @@ int bridge_io_destroy(struct io_mgr *hio_mgr)
/* Free IO DPC object */
tasklet_kill(&hio_mgr->dpc_tasklet);
-#ifdef CONFIG_TIDSPBRIDGE_DEBUG
+#if defined(CONFIG_TIDSPBRIDGE_BACKTRACE) || defined(CONFIG_TIDSPBRIDGE_DEBUG)
kfree(hio_mgr->pmsg);
#endif
dsp_wdt_exit();
@@ -407,7 +407,7 @@ int bridge_io_on_loaded(struct io_mgr *hio_mgr)
status = -EFAULT;
}
if (DSP_SUCCEEDED(status)) {
-#ifdef CONFIG_TIDSPBRIDGE_DEBUG
+#if defined(CONFIG_TIDSPBRIDGE_BACKTRACE) || defined(CONFIG_TIDSPBRIDGE_DEBUG)
status =
cod_get_sym_value(cod_man, DSP_TRACESEC_END, &shm0_end);
#else
@@ -752,7 +752,7 @@ int bridge_io_on_loaded(struct io_mgr *hio_mgr)
hmsg_mgr->max_msgs);
memset((void *)hio_mgr->shared_mem, 0, sizeof(struct shm));
-#ifdef CONFIG_TIDSPBRIDGE_DEBUG
+#if defined(CONFIG_TIDSPBRIDGE_BACKTRACE) || defined(CONFIG_TIDSPBRIDGE_DEBUG)
/* Get the start address of trace buffer */
status = cod_get_sym_value(cod_man, SYS_PUTCBEG,
&hio_mgr->ul_trace_buffer_begin);
@@ -949,7 +949,7 @@ void io_dpc(IN OUT unsigned long pRefData)
(pio_mgr->intr_val < DEH_LIMIT)) {
/* Notify DSP/BIOS exception */
if (hdeh_mgr) {
-#ifdef CONFIG_TIDSPBRIDGE_DEBUG
+#ifdef CONFIG_TIDSPBRIDGE_BACKTRACE
print_dsp_debug_trace(pio_mgr);
#endif
bridge_deh_notify(hdeh_mgr, DSP_SYSERROR,
@@ -1810,7 +1810,12 @@ int bridge_io_get_proc_load(IN struct io_mgr *hio_mgr,
return 0;
}
-#ifdef CONFIG_TIDSPBRIDGE_DEBUG
+void io_sm_init(void)
+{
+ /* Do nothing */
+}
+
+#if defined(CONFIG_TIDSPBRIDGE_BACKTRACE) || defined(CONFIG_TIDSPBRIDGE_DEBUG)
void print_dsp_debug_trace(struct io_mgr *hio_mgr)
{
u32 ul_new_message_length = 0, ul_gpp_cur_pointer;
@@ -1871,6 +1876,7 @@ void print_dsp_debug_trace(struct io_mgr *hio_mgr)
}
#endif
+#ifdef CONFIG_TIDSPBRIDGE_BACKTRACE
/*
* ======== print_dsp_trace_buffer ========
* Prints the trace buffer returned from the DSP (if DBG_Trace is enabled).
@@ -2045,10 +2051,6 @@ func_end:
return status;
}
-void io_sm_init(void)
-{
- /* Do nothing */
-}
/**
* dump_dsp_stack() - This function dumps the data on the DSP stack.
* @bridge_context: Bridge driver's device context pointer.
@@ -2407,4 +2409,4 @@ void dump_dl_modules(struct bridge_dev_context *bridge_context)
func_end:
kfree(module_struct);
}
-
+#endif
diff --git a/drivers/staging/tidspbridge/core/ue_deh.c b/drivers/staging/tidspbridge/core/ue_deh.c
index 2bdf92e..3430418 100644
--- a/drivers/staging/tidspbridge/core/ue_deh.c
+++ b/drivers/staging/tidspbridge/core/ue_deh.c
@@ -166,6 +166,7 @@ int bridge_deh_register_notify(struct deh_mgr *deh, u32 event_mask,
return ntfy_unregister(deh->ntfy_obj, hnotification);
}
+#ifdef CONFIG_TIDSPBRIDGE_BACKTRACE
static void mmu_fault_print_stack(struct bridge_dev_context *dev_context)
{
struct cfg_hostres *resources;
@@ -205,6 +206,7 @@ static void mmu_fault_print_stack(struct bridge_dev_context *dev_context)
hw_mmu_disable(resources->dw_dmmu_base);
free_page((unsigned long)dummy_va_addr);
}
+#endif
static inline const char *event_to_string(int event)
{
@@ -232,15 +234,19 @@ void bridge_deh_notify(struct deh_mgr *deh, int event, int info)
case DSP_SYSERROR:
dev_err(bridge, "%s: %s, info=0x%x", __func__,
str, info);
+#ifdef CONFIG_TIDSPBRIDGE_BACKTRACE
dump_dl_modules(dev_context);
dump_dsp_stack(dev_context);
+#endif
break;
case DSP_MMUFAULT:
dev_err(bridge, "%s: %s, addr=0x%x", __func__,
str, fault_addr);
+#ifdef CONFIG_TIDSPBRIDGE_BACKTRACE
print_dsp_trace_buffer(dev_context);
dump_dl_modules(dev_context);
mmu_fault_print_stack(dev_context);
+#endif
break;
default:
dev_err(bridge, "%s: %s", __func__, str);
diff --git a/drivers/staging/tidspbridge/gen/gh.c b/drivers/staging/tidspbridge/gen/gh.c
index d1e7b38..44fad88 100644
--- a/drivers/staging/tidspbridge/gen/gh.c
+++ b/drivers/staging/tidspbridge/gen/gh.c
@@ -188,6 +188,7 @@ static void myfree(void *ptr, s32 size)
gs_free(ptr);
}
+#ifdef CONFIG_TIDSPBRIDGE_BACKTRACE
/**
* gh_iterate() - This function goes through all the elements in the hash table
* looking for the dsp symbols.
@@ -211,3 +212,4 @@ void gh_iterate(struct gh_t_hash_tab *hash_tab,
}
}
}
+#endif
diff --git a/drivers/staging/tidspbridge/include/dspbridge/dbll.h b/drivers/staging/tidspbridge/include/dspbridge/dbll.h
index 54c6219..0d03714 100644
--- a/drivers/staging/tidspbridge/include/dspbridge/dbll.h
+++ b/drivers/staging/tidspbridge/include/dspbridge/dbll.h
@@ -53,7 +53,9 @@ extern void dbll_set_attrs(struct dbll_tar_obj *target,
extern void dbll_unload(struct dbll_library_obj *lib, struct dbll_attrs *attrs);
extern int dbll_unload_sect(struct dbll_library_obj *lib,
char *sectName, struct dbll_attrs *attrs);
+#ifdef CONFIG_TIDSPBRIDGE_BACKTRACE
bool dbll_find_dsp_symbol(struct dbll_library_obj *zl_lib, u32 address,
u32 offset_range, u32 *sym_addr_output, char *name_output);
+#endif
#endif /* DBLL_ */
diff --git a/drivers/staging/tidspbridge/include/dspbridge/gh.h b/drivers/staging/tidspbridge/include/dspbridge/gh.h
index 55c0489..9de291d 100644
--- a/drivers/staging/tidspbridge/include/dspbridge/gh.h
+++ b/drivers/staging/tidspbridge/include/dspbridge/gh.h
@@ -27,6 +27,8 @@ extern void gh_exit(void);
extern void *gh_find(struct gh_t_hash_tab *hash_tab, void *key);
extern void gh_init(void);
extern void *gh_insert(struct gh_t_hash_tab *hash_tab, void *key, void *value);
+#ifdef CONFIG_TIDSPBRIDGE_BACKTRACE
void gh_iterate(struct gh_t_hash_tab *hash_tab,
void (*callback)(void *, void *), void *user_data);
+#endif
#endif /* GH_ */
diff --git a/drivers/staging/tidspbridge/include/dspbridge/io_sm.h b/drivers/staging/tidspbridge/include/dspbridge/io_sm.h
index 6e67f10..0befe90 100644
--- a/drivers/staging/tidspbridge/include/dspbridge/io_sm.h
+++ b/drivers/staging/tidspbridge/include/dspbridge/io_sm.h
@@ -291,6 +291,7 @@ extern void io_intr_dsp2(IN struct io_mgr *pio_mgr, IN u16 mb_val);
extern void io_sm_init(void);
+#ifdef CONFIG_TIDSPBRIDGE_BACKTRACE
/*
* ========print_dsp_trace_buffer ========
* Print DSP tracebuffer.
@@ -302,7 +303,8 @@ int dump_dsp_stack(struct bridge_dev_context *bridge_context);
void dump_dl_modules(struct bridge_dev_context *bridge_context);
-#ifdef CONFIG_TIDSPBRIDGE_DEBUG
+#endif
+#if defined(CONFIG_TIDSPBRIDGE_BACKTRACE) || defined(CONFIG_TIDSPBRIDGE_DEBUG)
void print_dsp_debug_trace(struct io_mgr *hio_mgr);
#endif
diff --git a/drivers/staging/tidspbridge/include/dspbridge/nldr.h b/drivers/staging/tidspbridge/include/dspbridge/nldr.h
index 073aa9f..b1dbccd 100644
--- a/drivers/staging/tidspbridge/include/dspbridge/nldr.h
+++ b/drivers/staging/tidspbridge/include/dspbridge/nldr.h
@@ -49,7 +49,9 @@ extern int nldr_load(struct nldr_nodeobject *nldr_node_obj,
enum nldr_phase phase);
extern int nldr_unload(struct nldr_nodeobject *nldr_node_obj,
enum nldr_phase phase);
+#ifdef CONFIG_TIDSPBRIDGE_BACKTRACE
int nldr_find_addr(struct nldr_nodeobject *nldr_node, u32 sym_addr,
u32 offset_range, void *offset_output, char *sym_name);
+#endif
#endif /* NLDR_ */
diff --git a/drivers/staging/tidspbridge/include/dspbridge/node.h b/drivers/staging/tidspbridge/include/dspbridge/node.h
index 7587213..e9d8439 100644
--- a/drivers/staging/tidspbridge/include/dspbridge/node.h
+++ b/drivers/staging/tidspbridge/include/dspbridge/node.h
@@ -558,6 +558,7 @@ extern int node_get_uuid_props(void *hprocessor,
OUT struct dsp_ndbprops
*node_props);
+#ifdef CONFIG_TIDSPBRIDGE_BACKTRACE
/**
* node_find_addr() - Find the closest symbol to the given address.
*
@@ -575,5 +576,6 @@ int node_find_addr(struct node_mgr *node_mgr, u32 sym_addr,
char *sym_name);
enum node_state node_get_state(void *hnode);
+#endif
#endif /* NODE_ */
diff --git a/drivers/staging/tidspbridge/pmgr/dbll.c b/drivers/staging/tidspbridge/pmgr/dbll.c
index 3619d53..3636aa3 100644
--- a/drivers/staging/tidspbridge/pmgr/dbll.c
+++ b/drivers/staging/tidspbridge/pmgr/dbll.c
@@ -1500,6 +1500,7 @@ static void release(struct dynamic_loader_initialize *this)
{
}
+#ifdef CONFIG_TIDSPBRIDGE_BACKTRACE
/**
* find_symbol_context - Basic symbol context structure
* @address: Symbol Adress
@@ -1583,3 +1584,4 @@ bool dbll_find_dsp_symbol(struct dbll_library_obj *zl_lib, u32 address,
return status;
}
+#endif
diff --git a/drivers/staging/tidspbridge/rmgr/nldr.c b/drivers/staging/tidspbridge/rmgr/nldr.c
index d0138af..53fd371 100644
--- a/drivers/staging/tidspbridge/rmgr/nldr.c
+++ b/drivers/staging/tidspbridge/rmgr/nldr.c
@@ -1919,6 +1919,7 @@ static u32 find_gcf(u32 a, u32 b)
return b;
}
+#ifdef CONFIG_TIDSPBRIDGE_BACKTRACE
/**
* nldr_find_addr() - Find the closest symbol to the given address based on
* dynamic node object.
@@ -1997,3 +1998,4 @@ int nldr_find_addr(struct nldr_nodeobject *nldr_node, u32 sym_addr,
return status;
}
+#endif
diff --git a/drivers/staging/tidspbridge/rmgr/node.c b/drivers/staging/tidspbridge/rmgr/node.c
index 329fe5e..1870b80 100644
--- a/drivers/staging/tidspbridge/rmgr/node.c
+++ b/drivers/staging/tidspbridge/rmgr/node.c
@@ -3200,6 +3200,7 @@ static u32 mem_write(void *priv_ref, u32 ulDspAddr, void *pbuf,
return ul_num_bytes;
}
+#ifdef CONFIG_TIDSPBRIDGE_BACKTRACE
/*
* ======== node_find_addr ========
*/
@@ -3229,4 +3230,4 @@ int node_find_addr(struct node_mgr *node_mgr, u32 sym_addr,
return status;
}
-
+#endif
--
1.7.1
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