linux-stable.git/drivers/platform/x86/amd/x3d_vcache.c, branch linux-rolling-stable Linux kernel stable tree platform/x86/amd: amd_3d_vcache: Add AMD 3D V-Cache optimizer driver 2024-11-13T13:35:34+00:00 Basavaraj Natikar Basavaraj.Natikar@amd.com 2024-11-12T17:03:06+00:00 5a67c0d1c8bdcdba5dff49cfbf0d4c453b827a9d AMD X3D processors, also known as AMD 3D V-Cache, feature dual Core Complex Dies (CCDs) and enlarged L3 cache, enabling dynamic mode switching between Frequency and Cache modes. To optimize performance, implement the AMD 3D V-Cache Optimizer, which allows selecting either: Frequency mode: cores within the faster CCD are prioritized before those in the slower CCD. Cache mode: cores within the larger L3 CCD are prioritized before those in the smaller L3 CCD. Co-developed-by: Perry Yuan <perry.yuan@amd.com> Signed-off-by: Perry Yuan <perry.yuan@amd.com> Co-developed-by: Mario Limonciello <mario.limonciello@amd.com> Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Reviewed-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com> Reviewed-by: Armin Wolf <W_Armin@gmx.de> Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com> Link: https://lore.kernel.org/r/20241112170307.3745777-2-Basavaraj.Natikar@amd.com Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> 
AMD X3D processors, also known as AMD 3D V-Cache, feature dual Core
Complex Dies (CCDs) and enlarged L3 cache, enabling dynamic mode
switching between Frequency and Cache modes. To optimize performance,
implement the AMD 3D V-Cache Optimizer, which allows selecting either:

Frequency mode: cores within the faster CCD are prioritized before
those in the slower CCD.

Cache mode: cores within the larger L3 CCD are prioritized before
those in the smaller L3 CCD.

Co-developed-by: Perry Yuan <perry.yuan@amd.com>
Signed-off-by: Perry Yuan <perry.yuan@amd.com>
Co-developed-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Reviewed-by: Armin Wolf <W_Armin@gmx.de>
Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com>
Link: https://lore.kernel.org/r/20241112170307.3745777-2-Basavaraj.Natikar@amd.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>