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| author |   Alex Deucher <alexander.deucher@amd.com> | 2021-12-21 09:54:40 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-12-30 08:54:45 -0500 |
| commit | 937ed9c8660a27ac4d36e8339c970a2ae7903c4d (patch) | |
| tree | fcb4d55bb069ddbb9a556c6f95e19c954dd1ba1c /drivers/gpu | |
| parent | amdgpu/pm: Make sysfs pm attributes as read-only for VFs (diff) | |
| download | linux-dev-937ed9c8660a27ac4d36e8339c970a2ae7903c4d.tar.xz linux-dev-937ed9c8660a27ac4d36e8339c970a2ae7903c4d.zip | |
drm/amdgpu: fix runpm documentation
It's not only supported by HG/PX laptops. It's supported
by all dGPUs which supports BOCO/BACO functionality (runtime
D3).
BOCO - Bus Off, Chip Off. The entire chip is powered off.
This is controlled by ACPI.
BACO - Bus Active, Chip Off. The chip still shows up
on the PCI bus, but the device itself is powered
down.
v2: fix missed HG/PX reference
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c index bc1355c6248d..7f94d218b74f 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c @@ -331,10 +331,11 @@ module_param_named(aspm, amdgpu_aspm, int, 0444); /** * DOC: runpm (int) - * Override for runtime power management control for dGPUs in PX/HG laptops. The amdgpu driver can dynamically power down - * the dGPU on PX/HG laptops when it is idle. The default is -1 (auto enable). Setting the value to 0 disables this functionality. + * Override for runtime power management control for dGPUs. The amdgpu driver can dynamically power down + * the dGPUs when they are idle if supported. The default is -1 (auto enable). + * Setting the value to 0 disables this functionality. */ -MODULE_PARM_DESC(runpm, "PX runtime pm (2 = force enable with BAMACO, 1 = force enable with BACO, 0 = disable, -1 = PX only default)"); +MODULE_PARM_DESC(runpm, "PX runtime pm (2 = force enable with BAMACO, 1 = force enable with BACO, 0 = disable, -1 = auto)"); module_param_named(runpm, amdgpu_runtime_pm, int, 0444); /** |