[Intel-gfx] [PATCH i-g-t 2/2] overlay: Show total package power
Chris Wilson
chris at chris-wilson.co.uk
Sun Oct 13 13:50:21 UTC 2019
Add the total package power after the GPU package power, for reference.
Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
---
overlay/overlay.c | 18 ++++++----
overlay/power.c | 88 +++++++++++++++++++----------------------------
overlay/power.h | 21 +++++------
3 files changed, 59 insertions(+), 68 deletions(-)
diff --git a/overlay/overlay.c b/overlay/overlay.c
index eae5ddfa8..dd4fca29e 100644
--- a/overlay/overlay.c
+++ b/overlay/overlay.c
@@ -609,12 +609,12 @@ static void show_gpu_freq(struct overlay_context *ctx, struct overlay_gpu_freq *
}
if (has_power) {
- chart_add_sample(&gf->power_chart, gf->power.power_mW);
- if (gf->power.new_sample) {
- if (gf->power.power_mW > gf->power_max)
- gf->power_max = gf->power.power_mW;
+ chart_add_sample(&gf->power_chart, gf->power.gpu.power_mW);
+ if (gf->power.gpu.new_sample) {
+ if (gf->power.gpu.power_mW > gf->power_max)
+ gf->power_max = gf->power.gpu.power_mW;
chart_set_range(&gf->power_chart, 0, gf->power_max);
- gf->power.new_sample = 0;
+ gf->power.gpu.new_sample = 0;
}
chart_draw(&gf->power_chart, ctx->cr);
}
@@ -700,8 +700,14 @@ static void show_gpu_freq(struct overlay_context *ctx, struct overlay_gpu_freq *
}
if (has_power) {
- sprintf(buf, "Power: %llumW", (long long unsigned)gf->power.power_mW);
cairo_set_source_rgba(ctx->cr, 1, 1, 1, 1);
+
+ sprintf(buf, "Power: %llumW", (long long unsigned)gf->power.gpu.power_mW);
+ cairo_move_to(ctx->cr, PAD, y);
+ cairo_show_text(ctx->cr, buf);
+ y += 14;
+
+ sprintf(buf, "Package: %llumW", (long long unsigned)gf->power.pkg.power_mW);
cairo_move_to(ctx->cr, PAD, y);
cairo_show_text(ctx->cr, buf);
y += 14;
diff --git a/overlay/power.c b/overlay/power.c
index 0f99e2a4a..76fafea91 100644
--- a/overlay/power.c
+++ b/overlay/power.c
@@ -77,15 +77,6 @@ static uint64_t filename_to_u64(const char *filename, int base)
return strtoull(b, NULL, base);
}
-static uint64_t debugfs_file_to_u64(const char *name)
-{
- char buf[1024];
-
- snprintf(buf, sizeof(buf), "%s/%s", debugfs_dri_path, name);
-
- return filename_to_u64(buf, 0);
-}
-
static uint64_t rapl_type_id(void)
{
return filename_to_u64("/sys/devices/power/type", 10);
@@ -96,6 +87,11 @@ static uint64_t rapl_gpu_power(void)
return filename_to_u64("/sys/devices/power/events/energy-gpu", 0);
}
+static uint64_t rapl_pkg_power(void)
+{
+ return filename_to_u64("/sys/devices/power/events/energy-pkg", 0);
+}
+
static double filename_to_double(const char *filename)
{
char *oldlocale;
@@ -117,70 +113,58 @@ static double rapl_gpu_power_scale(void)
return filename_to_double("/sys/devices/power/events/energy-gpu.scale");
}
-int power_init(struct power *power)
+static double rapl_pkg_power_scale(void)
{
- uint64_t val;
+ return filename_to_double("/sys/devices/power/events/energy-pkg.scale");
+}
+int power_init(struct power *power)
+{
memset(power, 0, sizeof(*power));
- power->fd = igt_perf_open(rapl_type_id(), rapl_gpu_power());
- if (power->fd >= 0) {
- power->rapl_scale = rapl_gpu_power_scale();
-
- if (power->rapl_scale != NAN) {
- power->rapl_scale *= 1e3; /* from nano to micro */
- return 0;
- }
- }
+ power->gpu.fd = igt_perf_open(rapl_type_id(), rapl_gpu_power());
+ if (power->gpu.fd < 0)
+ return power->error = ENOENT;
+ power->gpu.scale = rapl_gpu_power_scale() * 1e3; /* to milli */
- val = debugfs_file_to_u64("i915_energy_uJ");
- if (val == 0)
- return power->error = EINVAL;
+ power->pkg.fd = igt_perf_open(rapl_type_id(), rapl_pkg_power());
+ power->pkg.scale = rapl_pkg_power_scale() *1e3; /* to milli */
return 0;
}
-static uint64_t clock_ms_to_u64(void)
+static void __power_update(struct power_domain *pd, int count)
{
- struct timespec tv;
+ struct power_stat *s = &pd->stat[count & 1];
+ struct power_stat *d = &pd->stat[(count + 1) & 1];
+ uint64_t data[2], d_time;
+ int len;
- if (clock_gettime(CLOCK_MONOTONIC, &tv) < 0)
- return 0;
+ len = read(pd->fd, data, sizeof(data));
+ if (len != sizeof(data))
+ return;
- return (uint64_t)tv.tv_sec * 1e3 + tv.tv_nsec / 1e6;
+ s->energy = llround((double)data[0] * pd->scale);
+ s->timestamp = data[1];
+
+ if (!count)
+ return;
+
+ d_time = s->timestamp - d->timestamp;
+ pd->power_mW = round((s->energy - d->energy) * 1e9 / d_time);
+ pd->new_sample = 1;
}
int power_update(struct power *power)
{
- struct power_stat *s = &power->stat[power->count++ & 1];
- struct power_stat *d = &power->stat[power->count & 1];
- uint64_t d_time;
-
if (power->error)
return power->error;
- if (power->fd >= 0) {
- uint64_t data[2];
- int len;
-
- len = read(power->fd, data, sizeof(data));
- if (len != sizeof(data))
- return power->error = errno;
-
- s->energy = llround((double)data[0] * power->rapl_scale);
- s->timestamp = data[1] / 1e6;
- } else {
- s->energy = debugfs_file_to_u64("i915_energy_uJ") / 1e3;
- s->timestamp = clock_ms_to_u64();
- }
+ __power_update(&power->gpu, power->count);
+ __power_update(&power->pkg, power->count);
- if (power->count == 1)
+ if (!power->count++)
return EAGAIN;
- d_time = s->timestamp - d->timestamp;
- power->power_mW = round((double)(s->energy - d->energy) *
- (1e3f / d_time));
- power->new_sample = 1;
-
return 0;
}
diff --git a/overlay/power.h b/overlay/power.h
index 28abfc322..be9f1e219 100644
--- a/overlay/power.h
+++ b/overlay/power.h
@@ -28,19 +28,20 @@
#include <stdint.h>
struct power {
- struct power_stat {
- uint64_t energy;
- uint64_t timestamp;
- } stat[2];
+ struct power_domain {
+ double scale;
+ uint64_t power_mW;
+ int new_sample;
+ int fd;
+
+ struct power_stat {
+ uint64_t energy;
+ uint64_t timestamp;
+ } stat[2];
+ } gpu, pkg;
- int fd;
int error;
int count;
- int new_sample;
-
- uint64_t power_mW;
-
- double rapl_scale;
};
int power_init(struct power *power);
--
2.23.0
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