From 5397d8058c15eafc227eb7ff8703008b5c89b4a9 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Wed, 17 Apr 2013 16:13:47 +0000 Subject: [PATCH] x86: Support adding coreboot timestanps to bootstage Coreboot provides a lot of useful timing information. Provide a facility to add this to bootstage on start-up. Signed-off-by: Simon Glass --- arch/x86/cpu/coreboot/timestamp.c | 38 +++++++++++++++++++ .../x86/include/asm/arch-coreboot/timestamp.h | 7 ++++ 2 files changed, 45 insertions(+) diff --git a/arch/x86/cpu/coreboot/timestamp.c b/arch/x86/cpu/coreboot/timestamp.c index d26718e65b..bd3558a021 100644 --- a/arch/x86/cpu/coreboot/timestamp.c +++ b/arch/x86/cpu/coreboot/timestamp.c @@ -61,3 +61,41 @@ void timestamp_add_now(enum timestamp_id id) { timestamp_add(id, rdtsc()); } + +int timestamp_add_to_bootstage(void) +{ + uint i; + + if (!ts_table) + return -1; + + for (i = 0; i < ts_table->num_entries; i++) { + struct timestamp_entry *tse = &ts_table->entries[i]; + const char *name = NULL; + + switch (tse->entry_id) { + case TS_START_ROMSTAGE: + name = "start-romstage"; + break; + case TS_BEFORE_INITRAM: + name = "before-initram"; + break; + case TS_DEVICE_INITIALIZE: + name = "device-initialize"; + break; + case TS_DEVICE_DONE: + name = "device-done"; + break; + case TS_SELFBOOT_JUMP: + name = "selfboot-jump"; + break; + } + if (name) { + bootstage_add_record(0, name, BOOTSTAGEF_ALLOC, + tse->entry_stamp / + get_tbclk_mhz()); + } + } + + return 0; +} diff --git a/arch/x86/include/asm/arch-coreboot/timestamp.h b/arch/x86/include/asm/arch-coreboot/timestamp.h index d104912e06..fcfc1d5442 100644 --- a/arch/x86/include/asm/arch-coreboot/timestamp.h +++ b/arch/x86/include/asm/arch-coreboot/timestamp.h @@ -49,4 +49,11 @@ void timestamp_init(void); void timestamp_add(enum timestamp_id id, uint64_t ts_time); void timestamp_add_now(enum timestamp_id id); +/** + * timestamp_add_to_bootstage - Add important coreboot timestamps to bootstage + * + * @return 0 if ok, -1 if no timestamps were found + */ +int timestamp_add_to_bootstage(void); + #endif -- 2.39.5