[coreboot-gerrit] Change in coreboot[master]: drivers/intel/fsp2_0: Add provision to extract FSP Performance Data

[Subrata Banik (Code Review)]

Attention is currently required from: Subrata Banik, Andrey Petrov.
Hello build bot (Jenkins), Andrey Petrov,

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/coreboot/+/62942

to look at the new patch set (#2).

Change subject: drivers/intel/fsp2_0: Add provision to extract FSP Performance Data
......................................................................

drivers/intel/fsp2_0: Add provision to extract FSP Performance Data

This patch enriches coreboot FSP2.0 driver to extract the FSP timestamp
from FPDT (Firmware Performance Data Table) and display as part of
ramstage boot stage if the SoC user selects the required
`GET_FSP_TIMESTAMP` config.

The prerequisite to this implementation is to have FSP binary built with
`PcdFspPerformanceEnable` PCD set to `TRUE` to allow FSP to populate
the FPDT HOB.

BUG=b:216635831
TEST=Able to dump FSP performance data with GET_FSP_TIMESTAMP Kconfig
selected and met the FSP prerequisites.
+--------------------------------------------------+
|------ FSP Performance Timestamp Table Dump ------|
+--------------------------------------------------+
|Perf-ID	Timestamp(ms)	       String/GUID |
+--------------------------------------------------+
    0	          460253		 SEC
   50	          460263		 PEI
   40	          460274		 PreMem
    1	          495803		9b3ada4f-ae56-4c24-8deaf03b7558ae50
    2	          508959		9b3ada4f-ae56-4c24-8deaf03b7558ae50
    1	          515253		6141e486-7543-4f1a-a579ff532ed78e75
    2	          525453		6141e486-7543-4f1a-a579ff532ed78e75
    1	          532059		baeb5bee-5b33-480a-8ab7b29c85e7ceab
    2	          546806		baeb5bee-5b33-480a-8ab7b29c85e7ceab
    1	          553302		1b04374d-fa9c-420f-ac62fee6d45e8443
    2	          563859		1b04374d-fa9c-420f-ac62fee6d45e8443
    1	          569955		88c17e54-ebfe-4531-a992581029f58126
    2	          575753		88c17e54-ebfe-4531-a992581029f58126
    1	          582099		a8499e65-a6f6-48b0-96db45c266030d83
 50f0	          599599		 unknown name
 50f1	          716649		 unknown name
    2	          728507		a8499e65-a6f6-48b0-96db45c266030d83
    1	          734755		9e1cc850-6731-4848-87526673c7005eee
....

Signed-off-by: Subrata Banik 
Change-Id: Ia1b7f6b98bafeec0afe843f0f78c99c2f34f50b3
---
M src/drivers/intel/fsp2_0/Kconfig
M src/drivers/intel/fsp2_0/Makefile.inc
A src/drivers/intel/fsp2_0/fsp_timestamp.c
M src/drivers/intel/fsp2_0/include/fsp/util.h
4 files changed, 123 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/42/62942/2