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/* SPDX-License-Identifier: GPL-2.0-or-later */
#define NVOP_FUNC_SUPPORT 0x00
#define NVOP_FUNC_GET_OBJ_BY_TYPE 0x10
#define NVOP_FUNC_OPTIMUS_CAPS 0x1a
#define NVOP_FUNC_OPTIMUS_STATUS 0x1b
Method (NVOP, 2, Serialized)
{
Switch (ToInteger (Arg0))
{
Case (NVOP_FUNC_SUPPORT)
{
Return (ITOB (
(1 << NVOP_FUNC_SUPPORT) |
(1 << NVOP_FUNC_OPTIMUS_CAPS) |
(1 << NVOP_FUNC_OPTIMUS_STATUS)))
}
Case (NVOP_FUNC_OPTIMUS_CAPS)
{
CreateField(Arg1, 0, 1, FLUP) /* Flag Update */
CreateField(Arg1, 1, 1, CSOT) /* Change configuration Space Owner Target */
CreateField(Arg1, 2, 1, CSOW) /* Change configuration Space Owner Write */
CreateField(Arg1, 24, 2, NPCE) /* New Power Control Enable setting */
/* Change Optimus power control capabilities */
If (ToInteger (FLUP) != 0 && ToInteger (NPCE) != 0)
{
OPCS = NPCE
}
/* Change PCI configuration space save/restore owner */
If (ToInteger (CSOW) == 1)
{
PCIO = CSOT
}
/* Current GPU Control Status */
If (PSTA () == 1)
{
Local0 = 3
}
Else
{
Local0 = 0
}
Return (ITOB (
(1 << 0) | /* Optimus Enabled */
(Local0 << 3) | /* Current GPU Control Status */
(0 << 6) | /* Shared Discrete GPU Hotplug Capabilities */
(0 << 7) | /* MUXed DDC/Aux Capabilities */
(PCIO << 8) | /* PCIe Configuration Space Owner */
(1 << 24) | /* Platform Optimus Power Capabilities */
(0 << 27))) /* Optimus HD Audio Codec Capabilities */
}
Case (NVOP_FUNC_OPTIMUS_STATUS)
{
Return (ITOB (
(0 << 0) | /* Optimus Audio Codec Control */
(0 << 2) | /* Request GPU Power State */
(0 << 4) | /* Evaluate Requested GPU Power State */
(0 << 5) | /* Request Optimus Adapter Policy */
(0 << 7))) /* Evaluate Requested Optimus Adapter Selection */
}
}
Return (NV_ERROR_UNSUPPORTED)
}
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