| Message ID | 20201010135759.437903-3-luc@lmichel.fr (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | raspi: add the bcm2835 cprman clock manager | expand |
On 10/10/20 3:57 PM, Luc Michel wrote: > The nanosecond unit greatly limits the dynamic range we can display in > clock value traces, for values in the order of 1GHz and more. The > internal representation can go way beyond this value and it is quite > common for today's clocks to be within those ranges. > > For example, a frequency between 500MHz+ and 1GHz will be displayed as > 1ns. Beyond 1GHz, it will show up as 0ns. > > Replace nanosecond periods traces with frequencies in the Hz unit > to have more dynamic range in the trace output. > > Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> > Reviewed-by: Damien Hedde <damien.hedde@greensocs.com> > Signed-off-by: Luc Michel <luc@lmichel.fr> > --- > hw/core/clock.c | 6 +++--- > hw/core/trace-events | 4 ++-- > 2 files changed, 5 insertions(+), 5 deletions(-) > > diff --git a/hw/core/clock.c b/hw/core/clock.c > index 7066282f7b..81184734e0 100644 > --- a/hw/core/clock.c > +++ b/hw/core/clock.c > @@ -37,12 +37,12 @@ void clock_clear_callback(Clock *clk) > bool clock_set(Clock *clk, uint64_t period) > { > if (clk->period == period) { > return false; > } > - trace_clock_set(CLOCK_PATH(clk), CLOCK_PERIOD_TO_NS(clk->period), > - CLOCK_PERIOD_TO_NS(period)); > + trace_clock_set(CLOCK_PATH(clk), CLOCK_PERIOD_TO_HZ(clk->period), > + CLOCK_PERIOD_TO_HZ(period)); > clk->period = period; > > return true; > } > > @@ -52,11 +52,11 @@ static void clock_propagate_period(Clock *clk, bool call_callbacks) > > QLIST_FOREACH(child, &clk->children, sibling) { > if (child->period != clk->period) { > child->period = clk->period; > trace_clock_update(CLOCK_PATH(child), CLOCK_PATH(clk), > - CLOCK_PERIOD_TO_NS(clk->period), > + CLOCK_PERIOD_TO_HZ(clk->period), > call_callbacks); > if (call_callbacks && child->callback) { > child->callback(child->callback_opaque); > } > clock_propagate_period(child, call_callbacks); > diff --git a/hw/core/trace-events b/hw/core/trace-events > index 1ac60ede6b..360ddeb2c8 100644 > --- a/hw/core/trace-events > +++ b/hw/core/trace-events > @@ -29,8 +29,8 @@ resettable_phase_exit_end(void *obj, const char *objtype, unsigned count) "obj=% > resettable_transitional_function(void *obj, const char *objtype) "obj=%p(%s)" > > # clock.c > clock_set_source(const char *clk, const char *src) "'%s', src='%s'" > clock_disconnect(const char *clk) "'%s'" > -clock_set(const char *clk, uint64_t old, uint64_t new) "'%s', ns=%"PRIu64"->%"PRIu64 > +clock_set(const char *clk, uint64_t old, uint64_t new) "'%s', %"PRIu64"Hz->%"PRIu64"Hz" I find it easier to read/follow as: "'%s', %"PRIu64" -> %"PRIu64" Hz", you see the number directly, no need for the brain to extract the trailing "Hz". Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org> > clock_propagate(const char *clk) "'%s'" > -clock_update(const char *clk, const char *src, uint64_t val, int cb) "'%s', src='%s', ns=%"PRIu64", cb=%d" > +clock_update(const char *clk, const char *src, uint64_t hz, int cb) "'%s', src='%s', val=%"PRIu64"Hz cb=%d" >
diff --git a/hw/core/clock.c b/hw/core/clock.c index 7066282f7b..81184734e0 100644 --- a/hw/core/clock.c +++ b/hw/core/clock.c @@ -37,12 +37,12 @@ void clock_clear_callback(Clock *clk) bool clock_set(Clock *clk, uint64_t period) { if (clk->period == period) { return false; } - trace_clock_set(CLOCK_PATH(clk), CLOCK_PERIOD_TO_NS(clk->period), - CLOCK_PERIOD_TO_NS(period)); + trace_clock_set(CLOCK_PATH(clk), CLOCK_PERIOD_TO_HZ(clk->period), + CLOCK_PERIOD_TO_HZ(period)); clk->period = period; return true; } @@ -52,11 +52,11 @@ static void clock_propagate_period(Clock *clk, bool call_callbacks) QLIST_FOREACH(child, &clk->children, sibling) { if (child->period != clk->period) { child->period = clk->period; trace_clock_update(CLOCK_PATH(child), CLOCK_PATH(clk), - CLOCK_PERIOD_TO_NS(clk->period), + CLOCK_PERIOD_TO_HZ(clk->period), call_callbacks); if (call_callbacks && child->callback) { child->callback(child->callback_opaque); } clock_propagate_period(child, call_callbacks); diff --git a/hw/core/trace-events b/hw/core/trace-events index 1ac60ede6b..360ddeb2c8 100644 --- a/hw/core/trace-events +++ b/hw/core/trace-events @@ -29,8 +29,8 @@ resettable_phase_exit_end(void *obj, const char *objtype, unsigned count) "obj=% resettable_transitional_function(void *obj, const char *objtype) "obj=%p(%s)" # clock.c clock_set_source(const char *clk, const char *src) "'%s', src='%s'" clock_disconnect(const char *clk) "'%s'" -clock_set(const char *clk, uint64_t old, uint64_t new) "'%s', ns=%"PRIu64"->%"PRIu64 +clock_set(const char *clk, uint64_t old, uint64_t new) "'%s', %"PRIu64"Hz->%"PRIu64"Hz" clock_propagate(const char *clk) "'%s'" -clock_update(const char *clk, const char *src, uint64_t val, int cb) "'%s', src='%s', ns=%"PRIu64", cb=%d" +clock_update(const char *clk, const char *src, uint64_t hz, int cb) "'%s', src='%s', val=%"PRIu64"Hz cb=%d"