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drivers/gfx/nvidia: acpi: Skeleton code for NBCI

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Signed-off-by: Tim Crawford <tcrawford@system76.com>
Change-Id: I5fbc8e1480670457586885c6099c19d73ca06c45
This commit is contained in:
Tim Crawford 2021-12-21 13:32:33 -07:00
parent 75468a84c0
commit 2d743165e7
5 changed files with 223 additions and 6 deletions
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37
src/drivers/gfx/nvidia/acpi/advanced_optimus.asl Normal file
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@ -0,0 +1,37 @@
/* SPDX-License-Identifier: GPL-2.0-only */
// NVIDIA Advanced Optimus
#define NVOP_FUNC_SUPPORT 0
#define NVOP_FUNC_DISPLAYSTATUS 5
#define NVOP_FUNC_MDTL 6
#define NVOP_FUNC_GETOBJBYTYPE 16
#define NVOP_FUNC_GETALLOBJS 17
#define NVOP_FUNC_OPTIMUSCAPS 26
#define NVOP_FUNC_OPTIMUSFLAGS 27
Method (NVOP, 2, Serialized)
{
Printf("NVOP {")
Local0 = NVIDIA_ERROR_UNSUPPORTED
Switch (ToInteger(Arg0)) {
Case (NVOP_FUNC_SUPPORT) {
}
Case (NVOP_FUNC_OPTIMUSCAPS) {
CreateField (Arg1, 0, 1, FLGS) // Flag updates
CreateField (Arg1, 1, 1, PCOT) // PCIe Configuration Space Owner Target
CreateField (Arg1, 2, 1, PCOW) // PCIe Configuration Space Owner Write
CreateField (Arg1, 24, 2, OPCE) // Optimus Power Control Enable
}
Default {
Printf(" Unsupported NVOP_FUNC: %o", ToInteger(Arg0))
Local0 = NVIDIA_ERROR_UNSUPPORTED
}
}
Printf("} NVOP")
Return(Local0)
}

2
src/drivers/gfx/nvidia/acpi/boost.asl
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@ -78,6 +78,6 @@ Method (GPS, 2, Serialized)
}
}
Printf("}")
Printf("} GPS")
Return(Local0)
}

40
src/drivers/gfx/nvidia/acpi/gpu.asl
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@ -43,6 +43,7 @@ Device (\_SB.PCI0.PEG0)
}
Name (_PR0, Package () { PWRR })
Name (_PR2, Package () { PWRR })
Name (_PR3, Package () { PWRR })
}
@ -54,10 +55,23 @@ Device (\_SB.PCI0.PEG0.DGPU)
Name (GPWR, 0) // GPU Power
Name (GCST, 6) // GCx State
Name (DPC, 0) // Deferred power control
Name (DPCX, 0) // Deferred power control on exit
Name (NVID, 0x00000000)
OperationRegion (PCIM, SystemMemory, 0x0E010000, 0xF0)
Field (PCIM, AnyAcc, Lock, Preserve)
{
Offset(0x2c),
SSID, 32,
}
// For supporting Hybrid Graphics, the package refers to the PCIe controller
// itself, which leverages GC6 Control methods under the dGPU namespace.
Name (_PR0, Package() { \_SB.PCI0.PEG0.PWRR })
Name (_PR3, Package() { \_SB.PCI0.PEG0.PWRR })
Name (_PR0, Package() { \_SB.PCI0.PEG0 })
Name (_PR3, Package() { \_SB.PCI0.PEG0 })
Method (_STA)
{
@ -89,11 +103,32 @@ Device (\_SB.PCI0.PEG0.DGPU)
GPWR = 1
GCST = 0
/*
// TODO: Actually check link status
Printf("Wait for PCIe link")
Sleep(100)
Printf("Restore SSID: %o", NVID)
SSID = NVID
*/
Printf("} DGPU._ON")
}
Method (_OFF)
{
Printf("DGPU._OFF {")
/*
Printf("Save SSID: %o", SSID)
NVID = SSID
// TODO: Actually check link status
Printf("Wait for PCIe link")
Sleep(100)
*/
Printf("DGPU._OFF {")
Printf(" Put GPU in reset")
CTXS(DGPU_RST_N)
@ -101,7 +136,6 @@ Device (\_SB.PCI0.PEG0.DGPU)
Printf(" Disable GPU power")
CTXS(DGPU_PWR_EN)
Sleep(10)
GPWR = 0
GCST = 6

60
src/drivers/gfx/nvidia/acpi/low_power_states.asl
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@ -10,6 +10,7 @@
Method (NVJT, 2, Serialized)
{
Printf("NVJT {")
Switch (ToInteger(Arg0)) {
Case (JT_FUNC_SUPPORT) {
Printf(" JT_FUNC_SUPPORT");
@ -84,9 +85,64 @@ Method (NVJT, 2, Serialized)
}
Case (JT_FUNC_POWERCONTROL) {
Printf(" JT_FUNC_POWERCONTROL: Unimplemented!");
Printf(" JT_FUNC_POWERCONTROL: %o", ToHexString(Arg1));
// TODO
Local0 = NVIDIA_ERROR_UNSUPPORTED
/*
CreateField (Arg1, 0, 3, GPC) // GPU Power Control
CreateField (Arg1, 3, 1, GGP) // Global GPU Power
CreateField (Arg1, 4, 1, PPC) // Panel Power Control
CreateField (Arg1, 6, 2, NOC) // Notify on complete
CreateField (Arg1, 8, 2, PRGX) // PCIe Root Power GC6 Exit Sequence
CreateField (Arg1, 10, 2, PRGE) // PCIe Root Power GC6 Entry Sequence
CreateField (Arg1, 12, 1, PRPC) // Poll for Root Port Completion
CreateField (Arg1, 13, 1, PLON) // PCIe Root Port Control
CreateField (Arg1, 14, 2, DFGC) // Defer GC6 Enter/Exit until D3cold
CreateField (Arg1, 16, 3, GPCX) // Deferred GC6 Exit Control
CreateField (Arg1, 19, 1, EGEI) // Enable GC6 Exit ISR
CreateField (Arg1, 20, 2, PLCM) // PCIe Root Port Control Method for PLON
Local0 = Buffer(4) {0, 0, 0, 0}
CreateField (Local0, 0, 3, GCS) // GC State
CreateField (Local0, 3, 1, GPS) // GPU Power Status
CreateField (Local0, 7, 1, PSS) // Panel and SRC State
*/
/*
* DFGC
* 0: Perform request immediately
* 1: Defer GPC and GPCX to be processed when setting Device Power State
* 2: Clear any pending deferred requests
*/
/*
If (DFGC == 2) {
DPC = 0
DPCX = 0
}
*/
/*
* GPC
* 0 GSS) Get current GPU GCx Sleep Status
* 1 EGNS: Entery GC6 only. No SMI trap, No Self-Refresh. Panel
* and GPU will be powred down as normal. FB will remain powered.
* 2 EGIS: Enter GC6, keep Panel in Self-Refresh. Enable SMI trap on
* VGA I/O regiters. Control of screen is transitioned to the SRC and
* then the GPU is powered down. Panel and FB remain powered while
* the GPU is off.
* 3 XGXS: Exit GC6. Exit Panel Self-Refresh (Sparse). GPU is powered on.
* Disable SMI traps.
* 4 XGIS: Exit GC6 for Self-Refresh Update (Burst). GPU is powered on, but
* the SRC continues to retain control of screen refresh, while the
* GPU sends an update to SRC for display. Disable SMI traps.
* 5 EGIN: Enter GC6, keep Pnael in Self-Refresh. No SMI trap on VGA I/O
* registers. Control of screen is transitioned to SRC and then
* GPU is powred down. Panel and FB remain powered while the GPU is off.
* 6 XCLM: Trigger GPU_EVENT only. GPU_EVENT would be assered and de-asserted,
* regardless of GPU power state, without waiting for any GPU-side
* signaling. No change in GPU power state is made. SMI traps disabled.
*/
}
Case (JT_FUNC_PLATPOLICY) {
@ -108,6 +164,6 @@ Method (NVJT, 2, Serialized)
}
}
Printf("}")
Printf("} NVJT")
Return(Local0)
}

90
src/drivers/gfx/nvidia/acpi/nbci.asl Normal file
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@ -0,0 +1,90 @@
/* SPDX-License-Identifier: GPL-2.0-only */
// Notebook Common Interface
#define NBCI_FUNC_SUPPORT 0
#define NBCI_FUNC_PLATCAPS 1
#define NBCI_FUNC_PLATPOLICY 4
#define NBCI_FUNC_DISPLAYSTATUS 5
#define NBCI_FUNC_GETOBJBYTYPE 16
#define NBCI_FUNC_GETALLOBJS 17
#define NBCI_FUNC_GETEVENTLIST 18
#define NBCI_FUNC_CALLBACKS 29
#define NBCI_FUNC_GETBACKLIGHT 20
#define NBCI_FUNC_GETLICENSE 22
#define NBCI_FUNC_GETEFITABLE 23
Scope (\_SB.PCI0.PEG0.DGPU)
{
Method (NBCI, 2, NotSerialized)
{
Printf("NBCI {")
Local0 = NVIDIA_ERROR_UNSUPPORTED
Switch (ToInteger(Arg0)) {
// Bit list of supported functions
Case (NBCI_FUNC_SUPPORT) {
// Supported functions: 0
Local0 = Buffer() {0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}
}
// Query Plaform Capabilities
Case (NBCI_FUNC_PLATCAPS) {
Printf(" NBCI_FUNC_PLATCAPS: Unimplemented!")
}
// Query Platform Policies
Case (NBCI_FUNC_PLATPOLICY) {
Printf(" NBCI_FUNC_PLATPOLICY: Unimplemented!")
}
// Query Display status
Case (NBCI_FUNC_DISPLAYSTATUS) {
Printf(" NBCI_FUNC_DISPLAYSTATUS: Unimplemented!")
}
// Fetch and specific Object by Type
Case (NBCI_FUNC_GETOBJBYTYPE) {
Printf(" NBCI_FUNC_GETOBJBYTYPE: Unimplemented!")
}
// Fetch all Objects
Case (NBCI_FUNC_GETALLOBJS) {
Printf(" NBCI_FUNC_GETALLOBJS: Unimplemented!")
}
// Get list of Notify events and their meaning
Case (NBCI_FUNC_GETEVENTLIST) {
Printf(" NBCI_FUNC_GETEVENTLIST: Unimplemented!")
}
// Get list of system-required callbacks
Case (NBCI_FUNC_CALLBACKS) {
Printf(" NBCI_FUNC_CALLBACKS: Unimplemented!")
}
// Get the Backlight setup settings
Case (NBCI_FUNC_GETBACKLIGHT) {
Printf(" NBCI_FUNC_GETBACKLIGHT: Unimplemented!")
}
// Get Software License Number
Case (NBCI_FUNC_GETLICENSE) {
Printf(" NBCI_FUNC_GETLICENSE: Unimplemented!")
}
// Get EFI System Table
Case (NBCI_FUNC_GETEFITABLE) {
Printf(" NBCI_FUNC_GETEFITABLE: Unimplemented!")
}
Default {
Printf(" Unsupported NBCI_FUNC: %o", ToInteger(Arg0))
Local0 = NVIDIA_ERROR_UNSUPPORTED
}
}
Printf("} NBCI")
Return(Local0)
}
}