diff options
author | Lee Leahy <leroy.p.leahy@intel.com> | 2015-05-12 18:19:47 -0700 |
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committer | Leroy P Leahy <leroy.p.leahy@intel.com> | 2015-07-16 17:23:27 +0200 |
commit | b000513741d330947bb832a5835378e35bdfb394 (patch) | |
tree | 0e039f881e195633b53c46424394715fff35558f /src/soc/intel/skylake/acpi/cpu.asl | |
parent | 741a0dd89ce67d0fed9a7907bb77ed3ea9afba81 (diff) |
soc/intel/skylake: Use Broadwell as comparision base for Skylake SOC
Use the Broadwell implementation as the comparison base for Skylake.
BRANCH=none
BUG=None
TEST=None
Change-Id: I22eb55ea89eb0d6883f98e4c72a6d243e819e6d8
Signed-off-by: Lee Leahy <leroy.p.leahy@intel.com>
Reviewed-on: http://review.coreboot.org/10340
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Diffstat (limited to 'src/soc/intel/skylake/acpi/cpu.asl')
-rw-r--r-- | src/soc/intel/skylake/acpi/cpu.asl | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/src/soc/intel/skylake/acpi/cpu.asl b/src/soc/intel/skylake/acpi/cpu.asl new file mode 100644 index 0000000000..2921ceae5e --- /dev/null +++ b/src/soc/intel/skylake/acpi/cpu.asl @@ -0,0 +1,122 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2014 Google Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/* 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) + +/* Notify OS to re-read CPU tables, assuming ^2 CPU count */ +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 + } +} + +/* Notify OS to re-read CPU _PPC limit, assuming ^2 CPU count */ +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 + } +} + +/* Notify OS to re-read Throttle Limit tables, assuming ^2 CPU count */ +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 + }) + } +} |