linux-kernel - [PATCH V3 0/7] Support Wifi RFI interference mitigation feature

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Date:   Fri, 16 Jun 2023 14:57:50 +0800
From:   Evan Quan <evan.quan@....com>
To:     <rafael@...nel.org>, <lenb@...nel.org>,
        <Alexander.Deucher@....com>, <Christian.Koenig@....com>,
        <Xinhui.Pan@....com>, <airlied@...il.com>, <daniel@...ll.ch>,
        <kvalo@...nel.org>, <nbd@....name>, <lorenzo@...nel.org>,
        <ryder.lee@...iatek.com>, <shayne.chen@...iatek.com>,
        <sean.wang@...iatek.com>, <matthias.bgg@...il.com>,
        <angelogioacchino.delregno@...labora.com>,
        <Mario.Limonciello@....com>, <Lijo.Lazar@....com>
CC:     <linux-kernel@...r.kernel.org>, <linux-acpi@...r.kernel.org>,
        <amd-gfx@...ts.freedesktop.org>, <dri-devel@...ts.freedesktop.org>,
        <linux-wireless@...r.kernel.org>, Evan Quan <evan.quan@....com>
Subject: [PATCH V3 0/7] Support Wifi RFI interference mitigation feature

Due to electrical and mechanical constraints in certain platform designs there may
be likely interference of relatively high-powered harmonics of the (G-)DDR memory
clocks with local radio module frequency bands used by Wifi 6/6e/7. To mitigate
possible RFI interference producers can advertise the frequencies in use and
consumers can use this information to avoid using these frequencies for
sensitive features.

The whole patch set is based on 6.4-rc3. With some brief introductions as below:
Patch1:     Core ACPI interfaces needed to support WBRF feature.
Patch2:     Enable WBRF support for wifi subsystem.
Patch3 - 7: Enable WBRF support for AMD graphics driver.

Evan Quan (5):
  drm/amd/pm: update driver_if and ppsmc headers for coming wbrf feature
  drm/amd/pm: setup the framework to support Wifi RFI mitigation feature
  drm/amd/pm: add flood detection for wbrf events
  drm/amd/pm: enable Wifi RFI mitigation feature support for SMU13.0.0
  drm/amd/pm: enable Wifi RFI mitigation feature support for SMU13.0.7

Mario Limonciello (2):
  drivers/acpi: Add support for Wifi band RF mitigations
  wifi: mac80211: Add support for ACPI WBRF

 drivers/acpi/Kconfig                          |   7 +
 drivers/acpi/Makefile                         |   2 +
 drivers/acpi/acpi_wbrf.c                      | 215 ++++++++++++++++++
 drivers/gpu/drm/amd/amdgpu/amdgpu.h           |  26 +++
 drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c      |  63 +++++
 drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c       |  19 ++
 drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c     | 204 +++++++++++++++++
 drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h |  30 +++
 .../inc/pmfw_if/smu13_driver_if_v13_0_0.h     |  14 +-
 .../inc/pmfw_if/smu13_driver_if_v13_0_7.h     |  14 +-
 .../pm/swsmu/inc/pmfw_if/smu_v13_0_0_ppsmc.h  |   3 +-
 .../pm/swsmu/inc/pmfw_if/smu_v13_0_7_ppsmc.h  |   3 +-
 drivers/gpu/drm/amd/pm/swsmu/inc/smu_types.h  |   3 +-
 drivers/gpu/drm/amd/pm/swsmu/inc/smu_v13_0.h  |   3 +
 .../gpu/drm/amd/pm/swsmu/smu13/smu_v13_0.c    |   9 +
 .../drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c  |  60 +++++
 .../drm/amd/pm/swsmu/smu13/smu_v13_0_7_ppt.c  |  59 +++++
 drivers/gpu/drm/amd/pm/swsmu/smu_internal.h   |   3 +
 include/linux/wbrf.h                          |  55 +++++
 include/net/cfg80211.h                        |   8 +
 net/mac80211/Makefile                         |   2 +
 net/mac80211/chan.c                           |  11 +
 net/mac80211/ieee80211_i.h                    |  19 ++
 net/mac80211/main.c                           |   2 +
 net/mac80211/wbrf.c                           | 137 +++++++++++
 net/wireless/chan.c                           |   3 +-
 26 files changed, 968 insertions(+), 6 deletions(-)
 create mode 100644 drivers/acpi/acpi_wbrf.c
 create mode 100644 include/linux/wbrf.h
 create mode 100644 net/mac80211/wbrf.c

-- 
2.34.1