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| author | Kürşat Abaylı <hello@kursatabayli.dev> | 2026-07-23 20:27:34 +0300 |
|---|---|---|
| committer | Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> | 2026-07-24 14:12:43 +0300 |
| commit | 59f586eb9394c7697cfcd2e1bb172c95e772559e (patch) | |
| tree | d2e2f3b03af10c00a44991eb26599a39fb3aec54 /tools/perf/scripts/python | |
| parent | caf8342512c3056005f475d350eeca089c3c6623 (diff) | |
platform/x86: hp-wmi: Add GPU MUX switch support
Add support for querying and switching the graphics MUX mode on HP
systems via WMI. This introduces the 'gpu_mux_mode' sysfs attribute
under the hp-wmi platform device, allowing userspace tools to check
and safely switch between available graphics modes (e.g., UMA, Hybrid,
Discrete).
The hardware capabilities mask is primarily read using the modern
128-byte System Design Data query. However, to ensure backward
compatibility with older models, a fallback mechanism is implemented.
By mirroring the behavior of the Windows Omen Gaming Hub software, if
the modern query fails but the MUX WMI endpoint (0x52) responds
successfully to a read request, the driver defaults to a standard
Hybrid + Discrete support mask (0x06).
Signed-off-by: Kürşat Abaylı <hello@kursatabayli.dev>
Link: https://patch.msgid.link/20260723172734.18361-1-hello@kursatabayli.dev
[ij: add kstrtox.h]
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions