Patrick Georgi (pgeorgi@google.com) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/12597
-gerrit
commit 70a54e51338cf7a43f8551669de24cbb34b87995 Author: Duncan Laurie dlaurie@chromium.org Date: Sat Nov 21 18:40:19 2015 -0800
intel/skylake: Add ACPI device for audio controller
Add the audio controller device to ACPI and define the _DSM handler to return the address of the NHLT table, if it has been set in NVS.
BUG=chrome-os-partner:47346 BRANCH=none TEST=build and boot on glados and chell
Change-Id: I8dc186a8bb79407b69ef32fb224a7c0f85c05bc4 Signed-off-by: Patrick Georgi pgeorgi@chromium.org Original-Commit-Id: 6b73fba375f83f175d0b73e5e70a058a6c259e0d Original-Change-Id: Ia9bedbae198e53fe415adc086a44b8b29b7f611d Original-Signed-off-by: Duncan Laurie dlaurie@chromium.org Original-Reviewed-on: https://chromium-review.googlesource.com/313824 Original-Commit-Ready: Aaron Durbin adurbin@chromium.org Original-Reviewed-by: Aaron Durbin adurbin@chromium.org --- src/soc/intel/skylake/acpi/globalnvs.asl | 2 + src/soc/intel/skylake/acpi/pch.asl | 3 ++ src/soc/intel/skylake/acpi/pch_hda.asl | 88 ++++++++++++++++++++++++++++++++ src/soc/intel/skylake/include/soc/nvs.h | 5 +- 4 files changed, 96 insertions(+), 2 deletions(-)
diff --git a/src/soc/intel/skylake/acpi/globalnvs.asl b/src/soc/intel/skylake/acpi/globalnvs.asl index 2018f34..1ea7e53 100644 --- a/src/soc/intel/skylake/acpi/globalnvs.asl +++ b/src/soc/intel/skylake/acpi/globalnvs.asl @@ -61,6 +61,8 @@ Field (GNVS, ByteAcc, NoLock, Preserve) PM1I, 64, // 0x20 - 0x27 - PM1 wake status bit GPEI, 64, // 0x28 - 0x2f - GPE wake status bit DPTE, 8, // 0x30 - Enable DPTF + NHLA, 64, // 0x31 - NHLT Address + NHLL, 32, // 0x39 - NHLT Length
/* ChromeOS specific */ Offset (0x100), diff --git a/src/soc/intel/skylake/acpi/pch.asl b/src/soc/intel/skylake/acpi/pch.asl index ef46c15..4e7c951 100644 --- a/src/soc/intel/skylake/acpi/pch.asl +++ b/src/soc/intel/skylake/acpi/pch.asl @@ -30,6 +30,9 @@ /* LPC 0:1f.0 */ #include "lpc.asl"
+/* PCH HDA */ +#include "pch_hda.asl" + /* PCIE Ports */ #include "pcie.asl"
diff --git a/src/soc/intel/skylake/acpi/pch_hda.asl b/src/soc/intel/skylake/acpi/pch_hda.asl new file mode 100644 index 0000000..509e6bf --- /dev/null +++ b/src/soc/intel/skylake/acpi/pch_hda.asl @@ -0,0 +1,88 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2015 Intel Corporation. + * Copyright (C) 2015 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. + */ + +/* Audio Controller - Device 31, Function 3 */ + +Device (HDAS) +{ + Name (_ADR, 0x001F0003) + Name (_DDN, "Audio Controller") + Name (UUID, ToUUID ("A69F886E-6CEB-4594-A41F-7B5DCE24C553")) + + /* Device is D3 wake capable */ + Name (_S0W, 3) + + /* NHLT Table Address populated from GNVS values */ + Name (NBUF, ResourceTemplate () { + QWordMemory (ResourceConsumer, PosDecode, MinFixed, + MaxFixed, NonCacheable, ReadOnly, + 0, 0, 0, 0, 1,,, NHLT, AddressRangeACPI) + }) + + /* + * Device Specific Method + * Arg0 - UUID + * Arg1 - Revision + * Arg2 - Function Index + */ + Method (_DSM, 4) + { + If (LEqual (Arg0, ^UUID)) { + /* + * Function 0: Function Support Query + * Returns a bitmask of functions supported. + */ + If (LEqual (Arg2, Zero)) { + /* + * NHLT Query only supported for revision 1 and + * if NHLT address and length are set in NVS. + */ + If (LAnd (LEqual (Arg1, One), + LAnd (LNotEqual (NHLA, Zero), + LNotEqual (NHLL, Zero)))) { + Return (Buffer (One) { 0x03 }) + } Else { + Return (Buffer (One) { 0x01 }) + } + } + + /* + * Function 1: Query NHLT memory address used by + * Intel Offload Engine Driver to discover any non-HDA + * devices that are supported by the DSP. + * + * Returns a pointer to NHLT table in memory. + */ + If (LEqual (Arg2, One)) { + CreateQWordField (NBUF, ^NHLT._MIN, NBAS) + CreateQWordField (NBUF, ^NHLT._MAX, NMAS) + CreateQWordField (NBUF, ^NHLT._LEN, NLEN) + + Store (NHLA, NBAS) + Store (NHLA, NMAS) + Store (NHLL, NLEN) + + Return (NBUF) + } + } + + Return (Buffer (One) { 0x00 }) + } +} diff --git a/src/soc/intel/skylake/include/soc/nvs.h b/src/soc/intel/skylake/include/soc/nvs.h index 13be921..032068f 100644 --- a/src/soc/intel/skylake/include/soc/nvs.h +++ b/src/soc/intel/skylake/include/soc/nvs.h @@ -51,8 +51,9 @@ typedef struct { u64 pm1i; /* 0x20 - 0x27 - PM1 wake status bit */ u64 gpei; /* 0x28 - 0x2f - GPE wake status bit */ u8 dpte; /* 0x30 - Enable DPTF */ - - u8 unused[207]; + u64 nhla; /* 0x31 - NHLT Address */ + u32 nhll; /* 0x39 - NHLT Length */ + u8 unused[195];
/* ChromeOS specific (0x100 - 0xfff) */ chromeos_acpi_t chromeos;