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| author |   Steven Noonan <steven@valvesoftware.com> | 2021-12-24 09:04:57 +0800 |
|---|---|---|
| committer |   Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2021-12-30 18:51:39 +0100 |
| commit | a2c8f92bea5f8f1a87fc3caf063d67876dbf5d47 (patch) | |
| tree | 2add7c103a0775fbad1bab3584c3a4285727ee82 /lib/math/git:/ssh:/git@git.zx2c4.com | |
| parent | x86/msr: Add AMD CPPC MSR definitions (diff) | |
| download | linux-dev-a2c8f92bea5f8f1a87fc3caf063d67876dbf5d47.tar.xz linux-dev-a2c8f92bea5f8f1a87fc3caf063d67876dbf5d47.zip | |
ACPI: CPPC: Implement support for SystemIO registers
According to the ACPI v6.2 (and later) specification, SystemIO can be
used for _CPC registers. This teaches cppc_acpi how to handle such
registers.
This patch was tested using the amd_pstate driver on my Zephyrus G15
(model GA503QS) using the current version 410 BIOS, which uses
a SystemIO register for the HighestPerformance element in _CPC.
Signed-off-by: Steven Noonan <steven@valvesoftware.com>
Signed-off-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'lib/math/git:/ssh:/git@git.zx2c4.com')
0 files changed, 0 insertions, 0 deletions