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Add more timestamps in coreboot.

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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>
This commit is contained in:
Stefan Reinauer 2011-11-04 12:31:58 -07:00 • committed by Stefan Reinauer
commit bf729baa2c
3 changed files with 44 additions and 2 deletions
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21
src/boot/hardwaremain.c
View file

@ -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");
}