diff options
| author | Varshit B Pandya <varshit.b.pandya@intel.com> | 2022-04-18 14:50:30 +0530 |
|---|---|---|
| committer | Felix Held <felix-coreboot@felixheld.de> | 2022-04-20 09:58:58 +0000 |
| commit | 282b3b6873e8666b0750ca973557b8cd7adf3689 (patch) | |
| tree | 5eb2a3e2981588f700f7c27569beb31affa8a3e5 /src/drivers/intel | |
| parent | 5784ab34d4ea89bb086af11125caec4af0cf1cd8 (diff) | |
drivers/intel/dptf: Add support for PROP method
Add PROP method under \_SB.DPTF.TPWR scope which will return static
worst case rest of platform power in miliWatts.
This value is static, which has to configured from devicetree of
overridetree for each platform
BUG=b:205928013
TEST=Build, boot brya0 and dump SSDT to check PROP method
Scope (\_SB)
{
Device (DPTF)
{
Device (TPWR)
{
Method (PROP, 0, Serialized)
{
Return (XXXX)
}
}
}
}
Signed-off-by: Varshit B Pandya <varshit.b.pandya@intel.com>
Change-Id: I1415d2a9eb55cfadc3a7b41b53ecbec657002759
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63697
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Diffstat (limited to 'src/drivers/intel')
| -rw-r--r-- | src/drivers/intel/dptf/chip.h | 3 | ||||
| -rw-r--r-- | src/drivers/intel/dptf/dptf.c | 18 |
2 files changed, 17 insertions, 4 deletions
diff --git a/src/drivers/intel/dptf/chip.h b/src/drivers/intel/dptf/chip.h index 59b1e251b3..060f19699d 100644 --- a/src/drivers/intel/dptf/chip.h +++ b/src/drivers/intel/dptf/chip.h @@ -59,6 +59,9 @@ struct drivers_intel_dptf_config { struct { uint32_t oem_variables[DPTF_OEM_VARIABLE_COUNT]; } oem_data; + + /* Rest of platform Power */ + uint32_t prop; }; #endif /* _DRIVERS_INTEL_DPTF_CHIP_H_ */ diff --git a/src/drivers/intel/dptf/dptf.c b/src/drivers/intel/dptf/dptf.c index 27c713313b..3cfd23c1d8 100644 --- a/src/drivers/intel/dptf/dptf.c +++ b/src/drivers/intel/dptf/dptf.c @@ -372,7 +372,8 @@ static void write_tpch_methods(const struct dptf_platform_info *platform_info) acpigen_write_device_end(); /* TPCH Device */ } -static void write_create_tpwr(const struct dptf_platform_info *platform_info) +static void write_create_tpwr(const struct drivers_intel_dptf_config *config, + const struct dptf_platform_info *platform_info) { acpigen_write_device("TPWR"); acpigen_write_name("_HID"); @@ -382,12 +383,21 @@ static void write_create_tpwr(const struct dptf_platform_info *platform_info) acpigen_write_name_string("_STR", DEFAULT_POWER_STR); acpigen_write_name_integer("PTYP", DPTF_GENERIC_PARTICIPANT_TYPE_POWER); acpigen_write_STA(ACPI_STATUS_DEVICE_ALL_ON); + + /* PROP method */ + if(config->prop != 0) { + acpigen_write_method_serialized("PROP", 0); + acpigen_emit_byte(RETURN_OP); + acpigen_write_integer(config->prop); + acpigen_pop_len(); /* Method PROP */ + } acpigen_write_device_end(); /* TPWR Power Participant Device */ } -static void write_tpwr_methods(const struct dptf_platform_info *platform_info) +static void write_tpwr_methods(const struct drivers_intel_dptf_config *config, + const struct dptf_platform_info *platform_info) { - write_create_tpwr(platform_info); + write_create_tpwr(config, platform_info); } static void write_create_tbat(const struct dptf_platform_info *platform_info) @@ -449,7 +459,7 @@ static void write_device_definitions(const struct device *dev) write_tpch_methods(platform_info); if (CONFIG(DRIVERS_INTEL_DPTF_SUPPORTS_TPWR)) - write_tpwr_methods(platform_info); + write_tpwr_methods(config, platform_info); if (CONFIG(DRIVERS_INTEL_DPTF_SUPPORTS_TBAT)) write_tbat_methods(platform_info); |