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/* SPDX-License-Identifier: GPL-2.0-or-later */
#define JT_FUNC_SUPPORT 0
#define JT_FUNC_CAPS 1
#define JT_FUNC_POWERCONTROL 3
#define JT_FUNC_PLATPOLICY 4
Method (NVJT, 2, Serialized)
{
Switch (ToInteger(Arg0))
{
Case (JT_FUNC_SUPPORT)
{
Return (ITOB(
(1 << JT_FUNC_SUPPORT) |
(1 << JT_FUNC_CAPS) |
(1 << JT_FUNC_POWERCONTROL) |
(1 << JT_FUNC_PLATPOLICY)))
}
Case (JT_FUNC_CAPS)
{
Return (ITOB(
(0 << 0) | /* JTE: G-Sync NVSR Power Features Enabled */
(1 << 0) | /* NVSE: NVSR Disabled */
(0 << 3) | /* PPR: Panel Power Rail */
(0 << 5) | /* SRPR: Self-Refresh Controller Power Rail */
(0 << 6) | /* FBPR: FB Power Rail */
(0 << 8) | /* GPR: GPU Power Rail */
(0 << 10) | /* GCR: GC6 ROM */
(1 << 11) | /* PTH: No SMI Handler */
(0 << 12) | /* NOT: Supports Notify on GC6 State done */
(1 << 13) | /* MHYB: MS Hybrid Support (deferred GC6) */
(0 << 14) | /* RPC: Root Port Control */
(0 << 15) | /* GC6 Version (GC6-E) */
(0 << 17) | /* GEI: GC6 Exit ISR Support */
(0 << 18) | /* GSW: GC6 Self Wakeup */
(0x200 << 20))) /* MXRV: Highest Revision */
}
Case (JT_FUNC_POWERCONTROL)
{
CreateField (Arg1, 0, 3, GPC) /* GPU Power Control */
CreateField (Arg1, 4, 1, PPC) /* Panel Power Control */
CreateField (Arg1, 14, 2, DFGC) /* Defer GC6 enter/exit */
CreateField (Arg1, 16, 3, GPCX) /* Deferred GC6 exit */
/* Deferred GC6 entry/exit is requested */
If (ToInteger(GPC) != 0 || ToInteger(DFGC) != 0)
{
DFEN = ToInteger(DFGC)
DFCI = ToInteger(GPC)
DFCO = ToInteger(GPCX)
}
Local0 = Buffer (4) { 0x0 }
CreateField (Local0, 0, 3, CGCS) /* Current GC State */
CreateField (Local0, 3, 1, CGPS) /* Current GPU power status */
CreateField (Local0, 7, 1, CPSS) /* Current panel and SRC state */
/* Leave early if deferred GC6 is requested */
If (DFEN != 0)
{
CGCS = 1
CGPS = 1
Return (Local0)
}
Switch (ToInteger(GPC))
{
/* Get GCU GCx Sleep Status */
Case (NVJT_GPC_GSS)
{
If (^_STA () != 0)
{
CGPS = 1
CGCS = 1
}
Else
{
CGPS = 0
CGCS = 3
}
}
Case (NVJT_GPC_EGNS)
{
/* Enter GC6; no self-refresh */
GC6I ()
CPSS = 1
CGCS = 0
}
Case (NVJT_GPC_EGIS)
{
/* Enter GC6; enable self-refresh */
GC6I ()
If (ToInteger (PPC) == 0)
{
CPSS = 0
}
CGCS = 0
}
Case (NVJT_GPS_XGXS)
{
/* Exit GC6; stop self-refresh */
GC6O ()
CGCS = 1
CGPS = 1
If (ToInteger (PPC) != 0)
{
CPSS = 0
}
}
Case (NVJT_GPS_XGIS)
{
/* Exit GC6 for self-refresh */
GC6O ()
CGCS = 1
CGPS = 1
If (ToInteger (PPC) != 0)
{
CPSS = 0
}
}
}
Return (Local0)
}
}
Return (NV_ERROR_UNSUPPORTED)
}
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