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mb/system76/{galp5,gaze16}: acpi: Save/Restore NVIDIA SSID

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Save NVIDIA device subsystem ID before turning off the GPU, and restore
it after turning on the GPU. This prevents to GPU from having the
default 10de:0000 SSID on RTD3 _ON.

Fixes formatting and device scope.

Tested on gaze16-3050 by checking lspci after RTD3 _OFF.

    $ cat /sys/bus/pci/devices/0000\:01\:00.0/power/runtime_status
    suspended

    $ lspci -s 01:00.0 -vnn | grep Subsystem
    Subsystem: CLEVO/KAPOK Computer GA107M [GeForce RTX 3050 Mobile] [1558:5015]

Change-Id: Ic5a91f96a5741abb605906f404b1632eaec73590
Signed-off-by: Tim Crawford <tcrawford@system76.com>
This commit is contained in:
Tim Crawford
2021-08-30 10:55:41 -06:00
committed by Jeremy Soller
parent 952260ced2
commit 970cc13192
2 changed files with 50 additions and 46 deletions
Download Patch File Download Diff File Expand all files Collapse all files

48
src/mainboard/system76/galp5/acpi/dgpu.asl
View File

@@ -1,30 +1,32 @@
/* SPDX-License-Identifier: GPL-2.0-only */
Scope (\_SB.PCI0.RP01) {
Device (DEV0) {
Name(_ADR, 0x00000000)
Scope (\_SB.PCI0.RP05) {
Device (DEV0) {
Name(_ADR, 0x00000000)
Name(SSID, 0x00000000)
OperationRegion (PCIC, PCI_Config, 0x00, 0x50)
Field (PCIC, DwordAcc, NoLock, Preserve) {
Offset (0x40),
SSID, 32
}
OperationRegion (PCIC, PCI_Config, 0x00, 0x50)
Field (PCIC, DwordAcc, NoLock, Preserve) {
Offset (0x40),
NVID, 32
}
Name (_PR0, Package () { PWRR })
Name (_PR3, Package () { PWRR })
PowerResource (PWRR, 0, 0) {
Name (_STA, 1)
Name (_PR0, Package () { PWRR })
Name (_PR3, Package () { PWRR })
PowerResource (PWRR, 0, 0) {
Name (_STA, 1)
Method (_ON) {
^^SSID = 0x40181558
Printf("GPU _ON %o", ToHexString(^^SSID))
_STA = 1
}
Method (_ON) {
^^NVID = ^^SSID
Printf("GPU _ON %o", ToHexString(^^SSID))
_STA = 1
}
Method (_OFF) {
Printf("GPU _OFF %o", ToHexString(^^SSID))
_STA = 0
}
}
}
Method (_OFF) {
^^SSID = ^^NVID
Printf("GPU _OFF %o", ToHexString(^^SSID))
_STA = 0
}
}
}
}

48
src/mainboard/system76/gaze16/acpi/dgpu.asl
View File

@@ -1,30 +1,32 @@
/* SPDX-License-Identifier: GPL-2.0-only */
Scope (\_SB.PCI0.RP01) {
Device (DEV0) {
Name(_ADR, 0x00000000)
Scope (\_SB.PCI0.PEG1) {
Device (DEV0) {
Name(_ADR, 0x00000000)
Name(SSID, 0x00000000)
OperationRegion (PCIC, PCI_Config, 0x00, 0x50)
Field (PCIC, DwordAcc, NoLock, Preserve) {
Offset (0x40),
SSID, 32
}
OperationRegion (PCIC, PCI_Config, 0x00, 0x50)
Field (PCIC, DwordAcc, NoLock, Preserve) {
Offset (0x40),
NVID, 32
}
Name (_PR0, Package () { PWRR })
Name (_PR3, Package () { PWRR })
PowerResource (PWRR, 0, 0) {
Name (_STA, 1)
Name (_PR0, Package () { PWRR })
Name (_PR3, Package () { PWRR })
PowerResource (PWRR, 0, 0) {
Name (_STA, 1)
Method (_ON) {
^^SSID = 0x50171558
Printf("GPU _ON %o", ToHexString(^^SSID))
_STA = 1
}
Method (_ON) {
^^NVID = ^^SSID
Printf("GPU _ON %o", ToHexString(^^SSID))
_STA = 1
}
Method (_OFF) {
Printf("GPU _OFF %o", ToHexString(^^SSID))
_STA = 0
}
}
}
Method (_OFF) {
^^SSID = ^^NVID
Printf("GPU _OFF %o", ToHexString(^^SSID))
_STA = 0
}
}
}
}