diff options
| author | Shyam Sundar S K <Shyam-sundar.S-k@amd.com> | 2022-08-02 20:41:41 +0530 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2022-08-15 13:23:38 +0200 |
| commit | 4c71ae4144746eb467f6aaab0ff83e306f11d6af (patch) | |
| tree | aefead6c92f9a81de29f878a5d1469327a233e71 /drivers/platform/x86/amd/pmf/acpi.c | |
| parent | 5eb315ebf47b605cb9364da40a9363ad4065014b (diff) | |
platform/x86/amd/pmf: Add support SPS PMF feature
SPS (a.k.a. Static Power Slider) gives a feel of Windows performance
power slider for the Linux users, where the user selects a certain
mode (like "balanced", "low-power" or "performance") and the thermals
associated with each selected mode gets applied from the silicon
side via the mailboxes defined through PMFW.
PMF driver hooks to platform_profile by reading the PMF ACPI fn9 to
see if the support is being advertised by ACPI interface.
If supported, the PMF driver reacts to platform_profile selection choices
made by the user and adjust the system thermal behavior.
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Link: https://lore.kernel.org/r/20220802151149.2123699-4-Shyam-sundar.S-k@amd.com
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Diffstat (limited to 'drivers/platform/x86/amd/pmf/acpi.c')
| -rw-r--r-- | drivers/platform/x86/amd/pmf/acpi.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/platform/x86/amd/pmf/acpi.c b/drivers/platform/x86/amd/pmf/acpi.c index b378f9e31194..5997ab724f3a 100644 --- a/drivers/platform/x86/amd/pmf/acpi.c +++ b/drivers/platform/x86/amd/pmf/acpi.c @@ -93,6 +93,16 @@ int is_apmf_func_supported(struct amd_pmf_dev *pdev, unsigned long index) return !!(pdev->supported_func & BIT(index - 1)); } +int apmf_get_static_slider_granular(struct amd_pmf_dev *pdev, + struct apmf_static_slider_granular_output *data) +{ + if (!is_apmf_func_supported(pdev, APMF_FUNC_STATIC_SLIDER_GRANULAR)) + return -EINVAL; + + return apmf_if_call_store_buffer(pdev, APMF_FUNC_STATIC_SLIDER_GRANULAR, + data, sizeof(*data)); +} + static int apmf_if_verify_interface(struct amd_pmf_dev *pdev) { struct apmf_verify_interface output; |