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acpi: Add SSDT pstate helper functions

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Add new generic helper functions for PSS, PCT, XPSS, objects.

BUG=b:155307433
TEST=Boot Morphius and dump SSDT. Confirm PSS and PCT objects appear
as expected and conform to ACPI_6_3_May16.pdf ACPI specification.
Check XPSS against Microsoft "Extended PSS ACPI Method Specification"
XPSS_spec.doc April 2, 2007.
BRANCH=Zork

Change-Id: I1ea218bcee33093481e82390550ff96d9d2cb8b5
Signed-off-by: Jason Glenesk <jason.glenesk@amd.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45437
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
This commit is contained in:
Jason Glenesk
2020-09-15 21:01:57 -07:00
committed by Felix Held
parent ccbe5307d8
commit ca36aedb4e
3 changed files with 82 additions and 0 deletions
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20
src/include/acpi/acpi.h
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@@ -800,6 +800,26 @@ typedef struct acpi_cstate {
acpi_addr_t resource;
} __packed acpi_cstate_t;
struct acpi_sw_pstate {
u32 core_freq;
u32 power;
u32 transition_latency;
u32 bus_master_latency;
u32 control_value;
u32 status_value;
} __packed;
struct acpi_xpss_sw_pstate {
u64 core_freq;
u64 power;
u64 transition_latency;
u64 bus_master_latency;
u64 control_value;
u64 status_value;
u64 control_mask;
u64 status_mask;
} __packed;
typedef struct acpi_tstate {
u32 percent;
u32 power;