From 0ac555e8fb2d551bfe70f87286fd73bac86c335e Mon Sep 17 00:00:00 2001 From: Arthur Heymans Date: Wed, 28 Nov 2018 12:25:54 +0100 Subject: 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 Reviewed-on: https://review.coreboot.org/c/29891 Tested-by: build bot (Jenkins) Reviewed-by: Duncan Laurie --- src/soc/intel/apollolake/acpi/cpu.asl | 99 +++------------------------------- src/soc/intel/cannonlake/acpi/cpu.asl | 40 ++++++-------- src/soc/intel/common/block/acpi/acpi.c | 6 +++ src/soc/intel/icelake/acpi/cpu.asl | 40 ++++++-------- 4 files changed, 46 insertions(+), 139 deletions(-) (limited to 'src/soc') diff --git a/src/soc/intel/apollolake/acpi/cpu.asl b/src/soc/intel/apollolake/acpi/cpu.asl index a202cebc0e..d42d1bbe51 100644 --- a/src/soc/intel/apollolake/acpi/cpu.asl +++ b/src/soc/intel/apollolake/acpi/cpu.asl @@ -13,106 +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, assuming ^2 CPU count */ +/* Notify OS to re-read CPU _PPC limit */ Method (PPCN) { - If (LGreaterEqual (\PCNT, 2)) { - Notify (\_PR.CP00, 0x80) // _PPC - Notify (\_PR.CP01, 0x80) // _PPC - } - If (LGreaterEqual (\PCNT, 4)) { - Notify (\_PR.CP02, 0x80) // _PPC - Notify (\_PR.CP03, 0x80) // _PPC - } - If (LGreaterEqual (\PCNT, 8)) { - Notify (\_PR.CP04, 0x80) // _PPC - Notify (\_PR.CP05, 0x80) // _PPC - Notify (\_PR.CP06, 0x80) // _PPC - Notify (\_PR.CP07, 0x80) // _PPC - } + \_PR.CNOT (0x80) } -/* Notify OS to re-read Throttle Limit tables, assuming ^2 CPU count */ +/* Notify OS to re-read Throttle Limit tables */ Method (TNOT) { - If (LGreaterEqual (\PCNT, 2)) { - Notify (\_PR.CP00, 0x82) // _TPC - Notify (\_PR.CP01, 0x82) // _TPC - } - If (LGreaterEqual (\PCNT, 4)) { - Notify (\_PR.CP02, 0x82) // _TPC - Notify (\_PR.CP03, 0x82) // _TPC - } - If (LGreaterEqual (\PCNT, 8)) { - Notify (\_PR.CP04, 0x82) // _TPC - Notify (\_PR.CP05, 0x82) // _TPC - Notify (\_PR.CP06, 0x82) // _TPC - Notify (\_PR.CP07, 0x82) // _TPC - } -} - -/* Return a package containing enabled processor entries */ -Method (PPKG) -{ - If (LGreaterEqual (\PCNT, 8)) { - Return (Package() - { - \_PR.CP00, - \_PR.CP01, - \_PR.CP02, - \_PR.CP03, - \_PR.CP04, - \_PR.CP05, - \_PR.CP06, - \_PR.CP07 - }) - } ElseIf (LGreaterEqual (\PCNT, 4)) { - Return (Package () - { - \_PR.CP00, - \_PR.CP01, - \_PR.CP02, - \_PR.CP03 - }) - } ElseIf (LGreaterEqual (\PCNT, 2)) { - Return (Package () - { - \_PR.CP00, - \_PR.CP01 - }) - } Else { - Return (Package () - { - \_PR.CP00 - }) - } + \_PR.CNOT (0x82) } diff --git a/src/soc/intel/cannonlake/acpi/cpu.asl b/src/soc/intel/cannonlake/acpi/cpu.asl index 79314e6a88..5f65bd8b4b 100644 --- a/src/soc/intel/cannonlake/acpi/cpu.asl +++ b/src/soc/intel/cannonlake/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) } diff --git a/src/soc/intel/common/block/acpi/acpi.c b/src/soc/intel/common/block/acpi/acpi.c index 870e371233..0ea6cb9d70 100644 --- a/src/soc/intel/common/block/acpi/acpi.c +++ b/src/soc/intel/common/block/acpi/acpi.c @@ -436,6 +436,12 @@ void generate_cpu_entries(struct device *device) acpigen_pop_len(); } } + /* PPKG is usually used for thermal management + of the first and only package. */ + acpigen_write_processor_package("PPKG", 0, cores_per_package); + + /* Add a method to notify processor nodes */ + acpigen_write_processor_cnot(cores_per_package); } #if IS_ENABLED(CONFIG_SOC_INTEL_COMMON_ACPI_WAKE_SOURCE) 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) } -- cgit v1.2.3