diff options
| author | Suma Hegde <suma.hegde@amd.com> | 2022-02-22 10:35:00 +0530 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2022-03-02 11:42:36 +0100 |
| commit | 91f410aa679a035e7abdff47daca4418c384c770 (patch) | |
| tree | d579aec46c6be453e2b8a13ec51eea774fbc4c1d /drivers/platform/x86/Kconfig | |
| parent | f094399fae9cde11c3f98565eb150522aa7c15ab (diff) | |
platform/x86: Add AMD system management interface
Recent Fam19h EPYC server line of processors from AMD support system
management functionality via HSMP (Host System Management Port) interface.
The Host System Management Port (HSMP) is an interface to provide
OS-level software with access to system management functions via a
set of mailbox registers.
More details on the interface can be found in chapter
"7 Host System Management Port (HSMP)" of the following PPR
https://www.amd.com/system/files/TechDocs/55898_B1_pub_0.50.zip
This patch adds new amd_hsmp module under the drivers/platforms/x86/
which creates miscdevice with an IOCTL interface to the user space.
/dev/hsmp is for running the hsmp mailbox commands.
Signed-off-by: Suma Hegde <suma.hegde@amd.com>
Signed-off-by: Naveen Krishna Chatradhi <nchatrad@amd.com>
Reviewed-by: Carlos Bilbao <carlos.bilbao@amd.com>
Acked-by: Song Liu <song@kernel.org>
Reviewed-by: Nathan Fontenot <nathan.fontenot@amd.com>
Link: https://lore.kernel.org/r/20220222050501.18789-1-nchatrad@amd.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Diffstat (limited to 'drivers/platform/x86/Kconfig')
| -rw-r--r-- | drivers/platform/x86/Kconfig | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig index 09f4ab013dfa..0d51011d5d90 100644 --- a/drivers/platform/x86/Kconfig +++ b/drivers/platform/x86/Kconfig @@ -210,6 +210,19 @@ config AMD_PMC If you choose to compile this driver as a module the module will be called amd-pmc. +config AMD_HSMP + tristate "AMD HSMP Driver" + depends on AMD_NB && X86_64 + help + The driver provides a way for user space tools to monitor and manage + system management functionality on EPYC server CPUs from AMD. + + Host System Management Port (HSMP) interface is a mailbox interface + between the x86 core and the System Management Unit (SMU) firmware. + + If you choose to compile this driver as a module the module will be + called amd_hsmp. + config ADV_SWBUTTON tristate "Advantech ACPI Software Button Driver" depends on ACPI && INPUT |