diff options
| author | Aaron Durbin <adurbin@chromium.org> | 2013-04-30 15:41:13 -0500 |
|---|---|---|
| committer | Ronald G. Minnich <rminnich@gmail.com> | 2013-05-01 21:36:16 +0200 |
| commit | 052942923b2320ee9cb2a1bcc2d2689c179ad4f5 (patch) | |
| tree | 53f740d53f8a8bcda09439bc4ca472851f5e9683 /src | |
| parent | c0466d46b7ea511f102eb6e57da59d95bf4ef95f (diff) | |
device tree: track init times
With the introduction of a monotonic timer it is possible to
track the individual times of each device's init() call. Add this
ability behind a HAVE_MONOTONIC_TIMER option.
Example log messages:
Root Device init 5 usecs
CPU_CLUSTER: 0 init 66004 usecs
PCI: 00:00.0 init 1020 usecs
PCI: 00:02.0 init 456941 usecs
PCI: 00:13.0 init 3 usecs
PCI: 00:14.0 init 3 usecs
PCI: 00:15.0 init 92 usecs
PCI: 00:15.1 init 37 usecs
PCI: 00:15.2 init 36 usecs
PCI: 00:15.3 init 35 usecs
PCI: 00:15.4 init 35 usecs
PCI: 00:15.5 init 36 usecs
PCI: 00:15.6 init 35 usecs
PCI: 00:16.0 init 3666 usecs
PCI: 00:17.0 init 63 usecs
PCI: 00:1b.0 init 3 usecs
PCI: 00:1c.0 init 89 usecs
PCI: 00:1c.1 init 15 usecs
PCI: 00:1c.2 init 15 usecs
PCI: 00:1c.3 init 15 usecs
PCI: 00:1c.4 init 15 usecs
PCI: 00:1c.5 init 16 usecs
PCI: 00:1d.0 init 4 usecs
PCI: 00:1f.0 init 495 usecs
PCI: 00:1f.2 init 29 usecs
PCI: 00:1f.3 init 4 usecs
PCI: 00:1f.6 init 4 usecs
Change-Id: Ibe499848432c7ab20166ab10d6dfb07db03eab01
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/3162
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Tested-by: build bot (Jenkins)
Diffstat (limited to 'src')
| -rw-r--r-- | src/device/device.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/device/device.c b/src/device/device.c index e0c8bf0523..a971270eba 100644 --- a/src/device/device.c +++ b/src/device/device.c @@ -43,6 +43,7 @@ #if CONFIG_ARCH_X86 #include <arch/ebda.h> #endif +#include <timer.h> /** Linked list of ALL devices */ struct device *all_devices = &dev_root; @@ -1103,6 +1104,12 @@ static void init_dev(struct device *dev) return; if (!dev->initialized && dev->ops && dev->ops->init) { +#if CONFIG_HAVE_MONOTONIC_TIMER + struct mono_time start_time; + struct rela_time dev_init_time; + + timer_monotonic_get(&start_time); +#endif if (dev->path.type == DEVICE_PATH_I2C) { printk(BIOS_DEBUG, "smbus: %s[%d]->", dev_path(dev->bus->dev), dev->bus->link_num); @@ -1111,6 +1118,11 @@ static void init_dev(struct device *dev) printk(BIOS_DEBUG, "%s init\n", dev_path(dev)); dev->initialized = 1; dev->ops->init(dev); +#if CONFIG_HAVE_MONOTONIC_TIMER + dev_init_time = current_time_from(&start_time); + printk(BIOS_DEBUG, "%s init %ld usecs\n", dev_path(dev), + rela_time_in_microseconds(&dev_init_time)); +#endif } } |