[PATCH v2 2/2] platform/x86/amd: amd_3d_vcache: Add sysfs ABI documentation

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Add documentation for the amd_3d_vcache sysfs bus platform driver
interface so that userspace applications can use it to change mode
preferences, either frequency or cache.

Co-developed-by: Perry Yuan <perry.yuan@xxxxxxx>
Signed-off-by: Perry Yuan <perry.yuan@xxxxxxx>
Co-developed-by: Mario Limonciello <mario.limonciello@xxxxxxx>
Signed-off-by: Mario Limonciello <mario.limonciello@xxxxxxx>
Reviewed-by: Shyam Sundar S K <Shyam-sundar.S-k@xxxxxxx>
Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@xxxxxxx>
---
 .../sysfs-bus-platform-drivers-amd_x3d_vcache        | 12 ++++++++++++
 MAINTAINERS                                          |  1 +
 2 files changed, 13 insertions(+)
 create mode 100644 Documentation/ABI/testing/sysfs-bus-platform-drivers-amd_x3d_vcache

diff --git a/Documentation/ABI/testing/sysfs-bus-platform-drivers-amd_x3d_vcache b/Documentation/ABI/testing/sysfs-bus-platform-drivers-amd_x3d_vcache
new file mode 100644
index 000000000000..5ff1f1a8c9b6
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-platform-drivers-amd_x3d_vcache
@@ -0,0 +1,12 @@
+What:		/sys/bus/platform/drivers/amd_x3d_vcache/AMDI0101:00/amd_x3d_mode
+Date:           October 2024
+KernelVersion:	6.13
+Contact:	Basavaraj Natikar <Basavaraj.Natikar@xxxxxxx>
+Description:	(RW) AMD 3D V-Cache optimizer allows users to switch CPU core
+		rankings dynamically.
+
+		This file switches between these two modes:
+		- "frequency" cores within the faster CCD are prioritized before
+		those in the slower CCD.
+		- "cache" cores within the larger L3 CCD are prioritized before
+		those in the smaller L3 CCD.
diff --git a/MAINTAINERS b/MAINTAINERS
index 11b829956499..ca9c666caf7f 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -970,6 +970,7 @@ M:	Basavaraj Natikar <Basavaraj.Natikar@xxxxxxx>
 R:	Mario Limonciello <mario.limonciello@xxxxxxx>
 L:	platform-driver-x86@xxxxxxxxxxxxxxx
 S:	Supported
+F:	Documentation/ABI/testing/sysfs-bus-platform-drivers-amd_x3d_vcache
 F:	drivers/platform/x86/amd/x3d_vcache.c
 
 AMD ADDRESS TRANSLATION LIBRARY (ATL)
-- 
2.25.1





[Index of Archives]     [Linux Kernel Development]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux