linux-kernel - [PATCH v2 0/3] ACPI: Add support for ACPI RAS2 feature table

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Message-ID: <20250305180225.1226-1-shiju.jose@huawei.com>
Date: Wed, 5 Mar 2025 18:02:21 +0000
From: <shiju.jose@...wei.com>
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Subject: [PATCH v2 0/3] ACPI: Add support for ACPI RAS2 feature table

From: Shiju Jose <shiju.jose@...wei.com>

Add support for ACPI RAS2 feature table (RAS2) defined in the
ACPI 6.5 specification, section 5.2.21 and RAS2 HW based memory
scrubbing feature.

ACPI RAS2 patches were part of the EDAC series [1].

The code is based on ras.git: edac-cxl branch [2].

1. https://lore.kernel.org/linux-cxl/20250212143654.1893-1-shiju.jose@huawei.com/ 
2. https://web.git.kernel.org/pub/scm/linux/kernel/git/ras/ras.git/log/?h=edac-cxl

Changes
=======
v1 -> v2:
1.  Changes for feedbacks from Borislav.
    - Shorten ACPI RAS2 structures and variables names in "include/acpi/actbl2.h".
    - Shorten some of the other variables in the RAS2 drivers.
    - Fixed few CamelCases.

2.  Changes for feedbacks from Yazen.
    - Added newline after number of '}' and return statements.
    - Changed return type for "ras2_add_aux_device() to 'int'.
    - Deleted a duplication of acpi_get_table("RAS2",...) in the ras2_acpi_parse_table().
    - Add "FW_WARN" to few error logs in the ras2_acpi_parse_table().
    - Rename ras2_acpi_init() to acpi_ras2_init() and modified to call acpi_ras2_init()
      function from the acpi_init().
    - Moved scrub related variables from the struct ras2_mem_ctx from  patch
      "ACPI:RAS2: Add ACPI RAS2 driver" to "ras: mem: Add memory ACPI RAS2 driver".
	  
3. Rename file include/acpi/acpi_ras2.h to include/acpi/ras2.h
	  
Shiju Jose (3):
  ACPI: ACPI 6.5: RAS2: Shorten RAS2 table structure and variable names
  ACPI:RAS2: Add ACPI RAS2 driver
  ras: mem: Add memory ACPI RAS2 driver

 Documentation/edac/scrub.rst |  73 ++++++
 drivers/acpi/Kconfig         |  11 +
 drivers/acpi/Makefile        |   1 +
 drivers/acpi/bus.c           |   3 +
 drivers/acpi/ras2.c          | 416 +++++++++++++++++++++++++++++++++++
 drivers/ras/Kconfig          |  11 +
 drivers/ras/Makefile         |   1 +
 drivers/ras/acpi_ras2.c      | 391 ++++++++++++++++++++++++++++++++
 include/acpi/actbl2.h        |  38 ++--
 include/acpi/ras2.h          |  54 +++++
 10 files changed, 980 insertions(+), 19 deletions(-)
 create mode 100755 drivers/acpi/ras2.c
 create mode 100644 drivers/ras/acpi_ras2.c
 create mode 100644 include/acpi/ras2.h

-- 
2.43.0