diff options
| author | Arthur Heymans <arthur@aheymans.xyz> | 2018-11-28 12:25:54 +0100 |
|---|---|---|
| committer | Duncan Laurie <dlaurie@chromium.org> | 2018-11-30 21:53:00 +0000 |
| commit | 0ac555e8fb2d551bfe70f87286fd73bac86c335e (patch) | |
| tree | e55daa1937744ff7a81b737d35c9839da61f1eed /src/soc/intel/icelake | |
| parent | f7d1c8d1eb651dcf1c692e33fd662500e93ad1fc (diff) | |
soc/intel/common: Rework acpi/cpu.asl
Use acpigen_write_processor_cnot to implement notifications to the CPU.
Change-Id: Id64f9857bbd7db520c94de949db8f823f71d6dae
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/29891
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Diffstat (limited to 'src/soc/intel/icelake')
| -rw-r--r-- | src/soc/intel/icelake/acpi/cpu.asl | 40 |
1 files changed, 16 insertions, 24 deletions
diff --git a/src/soc/intel/icelake/acpi/cpu.asl b/src/soc/intel/icelake/acpi/cpu.asl index be6e793ab9..2981c19754 100644 --- a/src/soc/intel/icelake/acpi/cpu.asl +++ b/src/soc/intel/icelake/acpi/cpu.asl @@ -13,31 +13,23 @@ * GNU General Public License for more details. */ -/* These devices are created at runtime */ -External (\_PR.CP00, DeviceObj) -External (\_PR.CP01, DeviceObj) -External (\_PR.CP02, DeviceObj) -External (\_PR.CP03, DeviceObj) -External (\_PR.CP04, DeviceObj) -External (\_PR.CP05, DeviceObj) -External (\_PR.CP06, DeviceObj) -External (\_PR.CP07, DeviceObj) +/* These come from the dynamically created CPU SSDT */ +External (\_PR.CNOT, MethodObj) -/* Notify OS to re-read CPU tables, assuming ^2 CPU count */ +/* Notify OS to re-read CPU tables */ Method (PNOT) { - If (LGreaterEqual (\PCNT, 2)) { - Notify (\_PR.CP00, 0x81) // _CST - Notify (\_PR.CP01, 0x81) // _CST - } - If (LGreaterEqual (\PCNT, 4)) { - Notify (\_PR.CP02, 0x81) // _CST - Notify (\_PR.CP03, 0x81) // _CST - } - If (LGreaterEqual (\PCNT, 8)) { - Notify (\_PR.CP04, 0x81) // _CST - Notify (\_PR.CP05, 0x81) // _CST - Notify (\_PR.CP06, 0x81) // _CST - Notify (\_PR.CP07, 0x81) // _CST - } + \_PR.CNOT (0x81) +} + +/* Notify OS to re-read CPU _PPC limit */ +Method (PPCN) +{ + \_PR.CNOT (0x80) +} + +/* Notify OS to re-read Throttle Limit tables */ +Method (TNOT) +{ + \_PR.CNOT (0x82) } |