Ronald G. Minnich (rminnich@gmail.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/3587
-gerrit
commit 1a470afe5954217627b694c2ae08b85c0bbc8a69 Author: Paul Menzel paulepanter@users.sourceforge.net Date: Tue Jul 2 09:54:17 2013 +0200
lenovo/x60/romstage.c: Collect timestamps in romstage
Collect early timestamps in Lenovo X60’s romstage.
Selecting the option `COLLECT_TIMESTAMPS` in Kconfig and then doing `cbmem --timestamps` should output the timestamps.
Change-Id: I7bd30f03a1b85c38e89c19cdf88b2d20b24abed8 Signed-off-by: Paul Menzel paulepanter@users.sourceforge.net --- src/mainboard/lenovo/x60/romstage.c | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+)
diff --git a/src/mainboard/lenovo/x60/romstage.c b/src/mainboard/lenovo/x60/romstage.c index 222b999..4d0eac7 100644 --- a/src/mainboard/lenovo/x60/romstage.c +++ b/src/mainboard/lenovo/x60/romstage.c @@ -30,6 +30,7 @@ #include <cpu/x86/lapic.h> #include <lib.h> #include <cbmem.h> +#include <timestamp.h> #include <pc80/mc146818rtc.h> #include <console/console.h> #include <cpu/x86/bist.h> @@ -218,6 +219,20 @@ void main(unsigned long bist) int cbmem_was_initted; const u8 spd_addrmap[2 * DIMM_SOCKETS] = { 0x50, 0x52, 0x51, 0x53 };
+#if CONFIG_COLLECT_TIMESTAMPS + tsc_t start_romstage_time; + tsc_t before_dram_time; + tsc_t after_dram_time; + tsc_t base_time = { + .lo = pci_read_config32(PCI_DEV(0, 0x00, 0), 0xdc), + .hi = pci_read_config32(PCI_DEV(0, 0x1f, 2), 0xd0) + }; +#endif + +#if CONFIG_COLLECT_TIMESTAMPS + start_romstage_time = rdtsc(); +#endif + if (bist == 0) enable_lapic();
@@ -281,7 +296,13 @@ void main(unsigned long bist) dump_spd_registers(); #endif
+#if CONFIG_COLLECT_TIMESTAMPS + before_dram_time = rdtsc(); +#endif sdram_initialize(boot_mode, spd_addrmap); +#if CONFIG_COLLECT_TIMESTAMPS + after_dram_time = rdtsc(); +#endif
/* Perform some initialization that must run before stage2 */ early_ich7_init(); @@ -340,6 +361,14 @@ void main(unsigned long bist) } #endif
+#if CONFIG_COLLECT_TIMESTAMPS + timestamp_init(base_time); + timestamp_add(TS_START_ROMSTAGE, start_romstage_time); + timestamp_add(TS_BEFORE_INITRAM, before_dram_time); + timestamp_add(TS_AFTER_INITRAM, after_dram_time); + timestamp_add_now(TS_END_ROMSTAGE); +#endif + #if CONFIG_CONSOLE_CBMEM /* Keep this the last thing this function does. */ cbmemc_reinit();