#include "gpu-freq.h"
#include "gpu-top.h"
#include "gpu-perf.h"
+#include "rc6.h"
const cairo_user_data_key_t overlay_key;
struct overlay_gpu_freq {
struct gpu_freq gpu_freq;
+ struct rc6 rc6;
struct chart current;
struct chart request;
int error;
fd = open(filename, 0);
if (fd >= 0) {
- len = read(fd, comm, len-1);
+ len = read(fd, comm, len);
if (len >= 0)
comm[len-1] = '\0';
close(fd);
if (gf->error)
return;
+ rc6_init(&gf->rc6);
+
chart_init(&gf->current, "current", 120);
chart_set_position(&gf->current, 12, ctx->height/2 + 6);
chart_set_size(&gf->current, ctx->width/2 - 18, ctx->height/2 - 18);
cairo_move_to(ctx->cr, 12, y);
cairo_show_text(ctx->cr, buf);
y += 14;
+
+ if (rc6_update(&gf->rc6) == 0) {
+ sprintf(buf, "RC6: %d%%", gf->rc6.rc6_combined);
+ cairo_move_to(ctx->cr, 12, y);
+ cairo_show_text(ctx->cr, buf);
+ if (gf->rc6.rc6_combined) {
+ sprintf(buf, " [rc6=%d%%, rc6p=%d%%, rc6pp=%d%%]",
+ gf->rc6.rc6, gf->rc6.rc6p, gf->rc6.rc6pp);
+ cairo_show_text(ctx->cr, buf);
+ }
+ y += 14;
+ }
}
static void init_gem_objects(struct overlay_context *ctx,
--- /dev/null
+#include <sys/stat.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <time.h>
+#include <errno.h>
+
+#include "rc6.h"
+
+int rc6_init(struct rc6 *rc6)
+{
+ struct stat st;
+ int fd;
+
+ memset(rc6, 0, sizeof(*rc6));
+
+ fd = stat("/sys/class/drm/card0/power", &st);
+ if (fd == -1)
+ return rc6->error = errno;
+
+ return 0;
+}
+
+static uint64_t file_to_u64(const char *path)
+{
+ char buf[4096];
+ int fd, len;
+
+ fd = open(path, 0);
+ if (fd < 0)
+ return 0;
+
+ len = read(fd, buf, sizeof(buf)-1);
+ close(fd);
+
+ if (len < 0)
+ return 0;
+
+ buf[len] = '\0';
+
+ return strtoull(buf, 0, 0);
+}
+
+static uint64_t clock_ms_to_u64(void)
+{
+ struct timespec tv;
+
+ if (clock_gettime(CLOCK_MONOTONIC, &tv) < 0)
+ return 0;
+
+ return (uint64_t)tv.tv_sec * 1000 + tv.tv_nsec / 10000000;
+}
+
+int rc6_update(struct rc6 *rc6)
+{
+ struct rc6_stat *s = &rc6->stat[rc6->count++&1];
+ struct rc6_stat *d = &rc6->stat[rc6->count&1];
+ uint64_t d_time, d_rc6, d_rc6p, d_rc6pp;
+ struct stat st;
+
+ if (rc6->error)
+ return rc6->error;
+
+ if (stat("/sys/class/drm/card0/power", &st) < 0)
+ return rc6->error = errno;
+
+ if (stat("/sys/class/drm/card0/power/rc6_residency_ms", &st) < 0)
+ return ENOENT;
+
+ s->rc6_residency = file_to_u64("/sys/class/drm/card0/power/rc6_residency_ms");
+ s->rc6p_residency = file_to_u64("/sys/class/drm/card0/power/rc6p_residency_ms");
+ s->rc6pp_residency = file_to_u64("/sys/class/drm/card0/power/rc6pp_residency_ms");
+ s->timestamp = clock_ms_to_u64();
+
+ if (rc6->count == 1)
+ return EAGAIN;
+
+ d_time = s->timestamp - d->timestamp;
+
+ d_rc6 = s->rc6_residency - d->rc6_residency;
+ rc6->rc6 = 100 * d_rc6 / d_time;
+
+ d_rc6p = s->rc6p_residency - d->rc6p_residency;
+ rc6->rc6p = 100 * d_rc6p / d_time;
+
+ d_rc6pp = s->rc6pp_residency - d->rc6pp_residency;
+ rc6->rc6pp = 100 * d_rc6pp / d_time;
+
+ rc6->rc6_combined = 100 * (d_rc6 + d_rc6p + d_rc6pp) / d_time;
+ return 0;
+}