On Mon, 2018-03-26 at 15:59 +0800, Yan Wang wrote:
On 3/26/2018 3:44 PM, Liam Girdwood wrote:
On Sun, 2018-03-25 at 17:34 -0700, Ranjani Sridharan wrote:
This patch adds a macro that can be used to enable sending all trace to mbox.
Does this also keep sending data to DMA trace too ? It needs to send data to both like trace_error()
IMHO, if TRACEM is enabled, it should only send trace data to mbox and not send to DMA trace local buffer?
It needs to do both, as it's a debug option to use when DMA trace fails or is being debugged.
Liam
Liam
Signed-off-by: Ranjani Sridharan ranjani.sridharan@linux.intel.com
Tested with Minnowboard Turbot with RT5651 Kernel: https://github.com/plbossart/sound.git branch: topic/sof-v4.14 SOF: https://github.com/ranj063/sof.git branch: debug/trace_test SOFT: 1.1-stable
src/include/reef/trace.h | 12 ++++++++- src/lib/trace.c | 65 ++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 76 insertions(+), 1 deletion(-)
diff --git a/src/include/reef/trace.h b/src/include/reef/trace.h index 7afbd23..f3f4dff 100644 --- a/src/include/reef/trace.h +++ b/src/include/reef/trace.h @@ -100,22 +100,32 @@ #define TRACE 1 #define TRACEV 0 #define TRACEE 1 +#define TRACEM 0 /* send all trace messages to mbox */
void _trace_event(uint32_t event); +void _trace_event_mbox(uint32_t event); void _trace_error(uint32_t event); void _trace_error_value(uint32_t event); void _trace_event_atomic(uint32_t event); +void _trace_event_mbox_atomic(uint32_t event); void _trace_error_atomic(uint32_t event); void trace_off(void); void trace_init(struct reef * reef);
#if TRACE
+/* send all trace to mbox */ +#if TRACEM +#define trace_event(__c, __e) \
- _trace_event_mbox(__c | (__e[0] << 16) | (__e[1] << 8) | __e[2])
+#define trace_event_atomic(__c, __e) \
- _trace_event_mbox_atomic(__c | (__e[0] << 16) | (__e[1] << 8) |
__e[2]) +#else #define trace_event(__c, __e) \ _trace_event(__c | (__e[0] << 16) | (__e[1] <<8) | __e[2]) #define trace_event_atomic(__c, __e) \ _trace_event_atomic(__c | (__e[0] << 16) | (__e[1] <<8) | __e[2])
+#endif #define trace_value(x) _trace_event(x) #define trace_value_atomic(x) _trace_event_atomic(x)
diff --git a/src/lib/trace.c b/src/lib/trace.c index de99a4e..bd0d376 100644 --- a/src/lib/trace.c +++ b/src/lib/trace.c @@ -136,6 +136,71 @@ void _trace_event_atomic(uint32_t event) dtrace_event_atomic((const char*)dt, sizeof(uint64_t) * 2); }
+void _trace_event_mbox(uint32_t event) +{
- unsigned long flags;
- uint64_t dt[2];
- uint64_t time;
- volatile uint64_t *t;
- if (!trace.enable)
return;- time = platform_timer_get(platform_timer);
- dt[0] = time;
- dt[1] = event;
- dtrace_event((const char *)dt, sizeof(uint64_t) * 2);
- /* send event by mail box too. */
- spin_lock_irq(&trace.lock, flags);
- /* write timestamp and event to trace buffer */
- t = (volatile uint64_t *)(MAILBOX_TRACE_BASE + trace.pos);
- trace.pos += (sizeof(uint64_t) << 1);
- if (trace.pos > MAILBOX_TRACE_SIZE - sizeof(uint64_t) * 2)
trace.pos = 0;- spin_unlock_irq(&trace.lock, flags);
- t[0] = time;
- t[1] = event;
- /* writeback trace data */
- dcache_writeback_region((void *)t, sizeof(uint64_t) * 2);
+}
+void _trace_event_mbox_atomic(uint32_t event) +{
- volatile uint64_t *t;
- uint64_t dt[2];
- uint64_t time;
- if (!trace.enable)
return;- time = platform_timer_get(platform_timer);
- dt[0] = time;
- dt[1] = event;
- dtrace_event_atomic((const char *)dt, sizeof(uint64_t) * 2);
- /* write timestamp and event to trace buffer */
- t = (volatile uint64_t *)(MAILBOX_TRACE_BASE + trace.pos);
- trace.pos += (sizeof(uint64_t) << 1);
- if (trace.pos > MAILBOX_TRACE_SIZE - sizeof(uint64_t) * 2)
trace.pos = 0;- t[0] = time;
- t[1] = event;
- /* writeback trace data */
- dcache_writeback_region((void *)t, sizeof(uint64_t) * 2);
+}
- void trace_off(void) { trace.enable = 0;
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