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| author | Shyam Sundar S K <Shyam-sundar.S-k@amd.com> | 2022-08-02 18:11:41 +0300 |
|---|---|---|
| committer | Hans de Goede <hdegoede@redhat.com> | 2022-08-15 14:23:38 +0300 |
| commit | 4c71ae4144746eb467f6aaab0ff83e306f11d6af (patch) | |
| tree | aefead6c92f9a81de29f878a5d1469327a233e71 /drivers/platform/x86/amd/pmf/pmf.h | |
| parent | 5eb315ebf47b605cb9364da40a9363ad4065014b (diff) | |
| download | linux-4c71ae4144746eb467f6aaab0ff83e306f11d6af.tar.xz | |
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/pmf.h')
| -rw-r--r-- | drivers/platform/x86/amd/pmf/pmf.h | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/drivers/platform/x86/amd/pmf/pmf.h b/drivers/platform/x86/amd/pmf/pmf.h index bdadbff168ee..fa3ea103b54a 100644 --- a/drivers/platform/x86/amd/pmf/pmf.h +++ b/drivers/platform/x86/amd/pmf/pmf.h @@ -12,10 +12,12 @@ #define PMF_H #include <linux/acpi.h> +#include <linux/platform_profile.h> /* APMF Functions */ #define APMF_FUNC_VERIFY_INTERFACE 0 #define APMF_FUNC_GET_SYS_PARAMS 1 +#define APMF_FUNC_STATIC_SLIDER_GRANULAR 9 /* Message Definitions */ #define SET_SPL 0x03 /* SPL: Sustained Power Limit */ @@ -36,6 +38,8 @@ #define GET_STT_LIMIT_APU 0x20 #define GET_STT_LIMIT_HS2 0x21 +#define ARG_NONE 0 + /* AMD PMF BIOS interfaces */ struct apmf_verify_interface { u16 size; @@ -51,6 +55,30 @@ struct apmf_system_params { u8 command_code; } __packed; +enum amd_stt_skin_temp { + STT_TEMP_APU, + STT_TEMP_HS2, + STT_TEMP_COUNT, +}; + +enum amd_slider_op { + SLIDER_OP_GET, + SLIDER_OP_SET, +}; + +enum power_source { + POWER_SOURCE_AC, + POWER_SOURCE_DC, + POWER_SOURCE_MAX, +}; + +enum power_modes { + POWER_MODE_PERFORMANCE, + POWER_MODE_BALANCED_POWER, + POWER_MODE_POWER_SAVER, + POWER_MODE_MAX, +}; + struct amd_pmf_dev { void __iomem *regbase; void __iomem *smu_virt_addr; @@ -60,10 +88,45 @@ struct amd_pmf_dev { struct device *dev; struct mutex lock; /* protects the PMF interface */ u32 supported_func; + enum platform_profile_option current_profile; + struct platform_profile_handler pprof; +}; + +struct apmf_sps_prop_granular { + u32 fppt; + u32 sppt; + u32 sppt_apu_only; + u32 spl; + u32 stt_min; + u8 stt_skin_temp[STT_TEMP_COUNT]; + u32 fan_id; +} __packed; + +/* Static Slider */ +struct apmf_static_slider_granular_output { + u16 size; + struct apmf_sps_prop_granular prop[POWER_SOURCE_MAX * POWER_MODE_MAX]; +} __packed; + +struct amd_pmf_static_slider_granular { + u16 size; + struct apmf_sps_prop_granular prop[POWER_SOURCE_MAX][POWER_MODE_MAX]; }; /* Core Layer */ int apmf_acpi_init(struct amd_pmf_dev *pmf_dev); +int is_apmf_func_supported(struct amd_pmf_dev *pdev, unsigned long index); int amd_pmf_send_cmd(struct amd_pmf_dev *dev, u8 message, bool get, u32 arg, u32 *data); +int amd_pmf_get_power_source(void); + +/* SPS Layer */ +u8 amd_pmf_get_pprof_modes(struct amd_pmf_dev *pmf); +void amd_pmf_update_slider(struct amd_pmf_dev *dev, bool op, int idx, + struct amd_pmf_static_slider_granular *table); +int amd_pmf_init_sps(struct amd_pmf_dev *dev); +void amd_pmf_deinit_sps(struct amd_pmf_dev *dev); +int apmf_get_static_slider_granular(struct amd_pmf_dev *pdev, + struct apmf_static_slider_granular_output *output); + #endif /* PMF_H */ |