8 Commits

Author SHA1 Message Date
Elyes Haouas
c0d3cf1052 soc/intel: Remove blank lines before '}' and after '{'
Change-Id: I79b93b0ca446411e2a1feb65d00045e3be85ee8a
Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/81489
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de>
2024-03-30 08:29:38 +00:00
Pratikkumar Prajapati
4db921317f soc/intel/common,mtl: Refactor BERT generation flow for crashlog
With earlier flow, a chunk of CBMEM region was allocated for each SRAM
e.g., PUNIT SRAM, SOC PMC SRAM and IOE PMC SRAM. Then entire SRAM
content was copied to dedicated CBMEM region. Later in acpi_bert.c, the
BERT table was getting created for each chunk of CBMEM. This flow was
not considering creating separate entries for each region of crashlog
records. It resulted in only the first entry getting decoded from each
SRAM.

New flow aims to fix this issue. With new flow, a simple singly linked
list is created to store each region of crashlog records from all
SRAMs. The crashlog data is not copied to CBMEM. The nodes are
allocated dynamically and then copied to ACPI BERT table and then
freed. This flow also makes the overall crashlog code much simpler.

BUG=b:298234592
TEST=With this change decoding crashlog show comprehensive details,
tested on REX.

Change-Id: I43bb61485b77d786647900ca284b7f492f412aee
Signed-off-by: Pratikkumar Prajapati <pratikkumar.v.prajapati@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78257
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2023-12-20 04:29:12 +00:00
Pratikkumar Prajapati
edef7d476e soc/intel/meteorlake: Implement cleanup and rearm functions
cpu_cl_cleanup() function checks if the SOC supports storage-off
feature. This feature allows to turn off PUNIT SSRAM to save power.
Enable the storage-off if it's supported. Enabling it also clears the
crashlog records from PUNIT SSRAM.

cpu_cl_rearm() function rearms the CPU crashlog.

BUG=b:262501347
TEST=Able to build google/rex. Verified both features get asserted.

Change-Id: Id9ba0f5db0b5d2bd57a7a21f178ef1e86ca63fae
Signed-off-by: Pratikkumar Prajapati <pratikkumar.v.prajapati@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/77239
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2023-09-17 04:48:59 +00:00
Elyes Haouas
244a60ea44 soc/intel/meteorlake: Remove space after a cast
Change-Id: Ibf28fbdf791e7aa2faa41f3059150bf5ff5d21d1
Signed-off-by: Elyes Haouas <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/77735
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2023-09-15 01:08:25 +00:00
Pratikkumar Prajapati
458e2553f5 soc/intel/meteorlake: Skip crashlog region with metadata tag
Region with metadata tag contains information about BDF entry for
SOC PMC SRAM and IOE SRAM. We don't need to parse this as we already
define BDFs in soc/pci_devs.h for these SRAMs. Also we need to skip
to region as it does not contain any crashlog data.

BUG=b:262501347
TEST=Able to build google/rex. Able to trigger crashlog and decode
correctly.

Change-Id: Id8ed40b865cde8e89045f5c9e713398fcbff5890
Signed-off-by: Pratikkumar Prajapati <pratikkumar.v.prajapati@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/76834
Reviewed-by: Subrata Banik <subratabanik@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2023-09-01 21:21:44 +00:00
Pratikkumar Prajapati
6cba976989 soc/intel/meteorlake: Validate CPU crashlog discovery table and records
CPU crashlog discovery table and crashlog record is considered
invalid if first 32bits of the table is either 0x0 (no crashlog)
or 0xdeadbeef (invalid crashlog).

Crashlog record is considered consumed if bit 31 is set. So in this
case stop processing the subsequent records.

BUG=b:289600699
TEST=Able to build and verified invalid records are skipped on
google/rex.

Change-Id: Ia81bd293a533217425e44473ae85b2115c85faf6
Signed-off-by: Pratikkumar Prajapati <pratikkumar.v.prajapati@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/76333
Reviewed-by: Subrata Banik <subratabanik@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
2023-09-01 21:18:29 +00:00
Pratikkumar Prajapati
0dc607f68d soc/intel/meteorlake: Adjust discovery table offset based on CPUID
CPUID CPUID_METEORLAKE_B0 onwards the discovery table offset needs
to be left-shifted by 3.

Reference: EDS Vol 1 (640228)

BUG=b:289600699
TEST=Able to boot google/rex with crashlog enabled.

Change-Id: I90647fb6190a52b42298398263978beaf931b035
Signed-off-by: Pratikkumar Prajapati <pratikkumar.v.prajapati@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/76400
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>
2023-09-01 21:14:37 +00:00
Pratikkumar Prajapati
17e9490e80 soc/intel/meteorlake: Add support for crashlog
Capture crashlog records from CPU PUNIT SRAM, SOC PMC SRAM and,
IOE SRAM. Crashlog records for IOE SRAM is discovered by
parsing SOC PMC SRAM records.

BUG=b:262501347
TEST=Able to trigger Crashlog, BERT table gets generated and decodes
as expected.

Change-Id: Ib0abd697fba35edf1c03d2a3a325b7785b985cd5
Signed-off-by: Pratikkumar Prajapati <pratikkumar.v.prajapati@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/74769
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Subrata Banik <subratabanik@google.com>
2023-06-26 17:41:46 +00:00