58e82a6266
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 this, AMD has introduced a mechanism that devices can use to notify active use of particular frequencies so that other devices can make relative internal adjustments as necessary to avoid this resonance. Co-developed-by: Evan Quan <quanliangl@hotmail.com> Signed-off-by: Evan Quan <quanliangl@hotmail.com> Signed-off-by: Ma Jun <Jun.Ma2@amd.com> Reviewed-by: Mario Limonciello <mario.limonciello@amd.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com>
35 lines
1.1 KiB
Plaintext
35 lines
1.1 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0-only
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#
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# AMD x86 Platform Specific Drivers
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#
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source "drivers/platform/x86/amd/pmf/Kconfig"
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source "drivers/platform/x86/amd/pmc/Kconfig"
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config AMD_HSMP
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tristate "AMD HSMP Driver"
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depends on AMD_NB && X86_64
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help
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The driver provides a way for user space tools to monitor and manage
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system management functionality on EPYC server CPUs from AMD.
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Host System Management Port (HSMP) interface is a mailbox interface
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between the x86 core and the System Management Unit (SMU) firmware.
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If you choose to compile this driver as a module the module will be
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called amd_hsmp.
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config AMD_WBRF
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bool "AMD Wifi RF Band mitigations (WBRF)"
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depends on ACPI
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help
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WBRF(Wifi Band RFI mitigation) mechanism allows Wifi drivers
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to notify the frequencies they are using so that other hardware
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can be reconfigured to avoid harmonic conflicts.
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AMD provides an ACPI based mechanism to support WBRF on platform with
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appropriate underlying support.
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This mechanism will only be activated on platforms that advertise a
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need for it.
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