linux-kernel - [PATCH v3 00/12] AMD NB and SMN rework

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Message-ID: <20250107222847.3300430-1-yazen.ghannam@amd.com>
Date: Tue, 7 Jan 2025 22:28:35 +0000
From: Yazen Ghannam <yazen.ghannam@....com>
To: <yazen.ghannam@....com>, <x86@...nel.org>, Tony Luck
	<tony.luck@...el.com>, Mario Limonciello <mario.limonciello@....com>, "Bjorn
 Helgaas" <bhelgaas@...gle.com>, Jean Delvare <jdelvare@...e.com>, "Guenter
 Roeck" <linux@...ck-us.net>, Shyam Sundar S K <Shyam-sundar.S-k@....com>,
	"Hans de Goede" <hdegoede@...hat.com>, Ilpo Järvinen
	<ilpo.jarvinen@...ux.intel.com>, Naveen Krishna Chatradhi
	<naveenkrishna.chatradhi@....com>, Suma Hegde <suma.hegde@....com>
CC: <linux-kernel@...r.kernel.org>, <linux-edac@...r.kernel.org>,
	<linux-pci@...r.kernel.org>, <linux-hwmon@...r.kernel.org>,
	<platform-driver-x86@...r.kernel.org>
Subject: [PATCH v3 00/12] AMD NB and SMN rework

Hi all,

This revision is based the following branch:
https://git.kernel.org/pub/scm/linux/kernel/git/bp/bp.git/log/?h=tip-x86-misc

The only major change from the branch is in patch 6.
	("x86/amd_nb: Use topology info to get AMD node count")

A check is added to verify that all nodes have a 'misc' device. This is
to catch any unexpected system configurations including running inside a
virtual guest where the node devices aren't exposed. The commit message
is also updated.

Thanks,
Yazen

Link:
https://lore.kernel.org/r/20241206161210.163701-1-yazen.ghannam@amd.com

Major changes
v2->v3:
* Based on public branch from Boris.
* Add check for not finding any 'misc' devices during init.

v1->v2:
* Rebase HSMP changes on latest upstream rework.
* Keep Node and SMN code together.

Mario Limonciello (2):
  x86/amd_nb, hwmon: (k10temp): Simplify amd_pci_dev_to_node_id()
  x86/amd_nb: Move SMN access code to a new amd_node driver

Yazen Ghannam (10):
  x86/amd_nb: Restrict init function to AMD-based systems
  x86/amd_nb: Clean up early_is_amd_nb()
  x86: Start moving AMD node functionality out of AMD_NB
  x86/amd_nb: Simplify function 4 search
  x86/amd_nb: Simplify root device search
  x86/amd_nb: Use topology info to get AMD node count
  x86/amd_nb: Simplify function 3 search
  x86/amd_node: Update __amd_smn_rw() error paths
  x86/amd_node: Remove dependency on AMD_NB
  x86/amd_node: Use defines for SMN register offsets

 MAINTAINERS                          |   8 +
 arch/x86/Kconfig                     |   4 +
 arch/x86/include/asm/amd_nb.h        |  22 +-
 arch/x86/include/asm/amd_node.h      |  36 ++++
 arch/x86/kernel/Makefile             |   1 +
 arch/x86/kernel/amd_nb.c             | 300 ++-------------------------
 arch/x86/kernel/amd_node.c           | 215 +++++++++++++++++++
 arch/x86/pci/fixup.c                 |   4 +-
 drivers/edac/Kconfig                 |   1 +
 drivers/edac/amd64_edac.c            |   1 +
 drivers/hwmon/Kconfig                |   2 +-
 drivers/hwmon/k10temp.c              |   7 +-
 drivers/platform/x86/amd/pmc/Kconfig |   2 +-
 drivers/platform/x86/amd/pmc/pmc.c   |   3 +-
 drivers/platform/x86/amd/pmf/Kconfig |   2 +-
 drivers/platform/x86/amd/pmf/core.c  |   2 +-
 drivers/ras/amd/atl/Kconfig          |   1 +
 drivers/ras/amd/atl/internal.h       |   1 +
 18 files changed, 304 insertions(+), 308 deletions(-)
 create mode 100644 arch/x86/include/asm/amd_node.h
 create mode 100644 arch/x86/kernel/amd_node.c

-- 
2.43.0