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| author | Stefan Reinauer <reinauer@chromium.org> | 2011-11-04 12:31:58 -0700 |
|---|---|---|
| committer | Stefan Reinauer <stefan.reinauer@coreboot.org> | 2012-03-30 17:45:20 +0200 |
| commit | bf729baa2c7b2fbfa03e271c4f3f5707989e43b5 (patch) | |
| tree | 2cfc81b64de44143141ec01de115a524ce0471ca /src/boot/hardwaremain.c | |
| parent | 10fea924772be63b668d3d8c8879570487bbc109 (diff) | |
| download | coreboot-bf729baa2c7b2fbfa03e271c4f3f5707989e43b5.tar.xz | |
Add more timestamps in coreboot.
This adds a number of timestamps in ramstage and romstage
so we can figure out where execution time goes.
Change-Id: Iea17c08774e623fc1ca3fa4505b70523ba4cbf01
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/749
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Diffstat (limited to 'src/boot/hardwaremain.c')
| -rw-r--r-- | src/boot/hardwaremain.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/boot/hardwaremain.c b/src/boot/hardwaremain.c index 9b293c049a..489caa39a5 100644 --- a/src/boot/hardwaremain.c +++ b/src/boot/hardwaremain.c @@ -41,6 +41,7 @@ it with the version available from LANL. #if CONFIG_WRITE_HIGH_TABLES #include <cbmem.h> #endif +#include <timestamp.h> /** * @brief Main function of the RAM part of coreboot. @@ -56,7 +57,9 @@ void hardwaremain(int boot_complete); void hardwaremain(int boot_complete) { struct lb_memory *lb_mem; + tsc_t timestamps[6]; + timestamps[0] = rdtsc(); post_code(POST_ENTRY_RAMSTAGE); /* console_init() MUST PRECEDE ALL printk()! */ @@ -78,18 +81,26 @@ void hardwaremain(int boot_complete) /* FIXME: Is there a better way to handle this? */ init_timer(); + timestamps[1] = rdtsc(); /* Find the devices we don't have hard coded knowledge about. */ dev_enumerate(); post_code(POST_DEVICE_ENUMERATION_COMPLETE); + + timestamps[2] = rdtsc(); /* Now compute and assign the bus resources. */ dev_configure(); post_code(POST_DEVICE_CONFIGURATION_COMPLETE); + + timestamps[3] = rdtsc(); /* Now actually enable devices on the bus */ dev_enable(); + + timestamps[4] = rdtsc(); /* And of course initialize devices on the bus */ dev_initialize(); post_code(POST_DEVICES_ENABLED); + timestamps[5] = rdtsc(); #if CONFIG_WRITE_HIGH_TABLES == 1 cbmem_initialize(); #if CONFIG_CONSOLE_CBMEM @@ -101,10 +112,20 @@ void hardwaremain(int boot_complete) post_code(0x8a); #endif + timestamp_add(TS_START_RAMSTAGE, timestamps[0]); + timestamp_add(TS_DEVICE_ENUMERATE, timestamps[1]); + timestamp_add(TS_DEVICE_CONFIGURE, timestamps[2]); + timestamp_add(TS_DEVICE_ENABLE, timestamps[3]); + timestamp_add(TS_DEVICE_INITIALIZE, timestamps[4]); + timestamp_add(TS_DEVICE_DONE, timestamps[5]); + timestamp_add_now(TS_WRITE_TABLES); + /* Now that we have collected all of our information * write our configuration tables. */ lb_mem = write_tables(); + + timestamp_add_now(TS_LOAD_PAYLOAD); cbfs_load_payload(lb_mem, CONFIG_CBFS_PREFIX "/payload"); printk(BIOS_ERR, "Boot failed.\n"); } |