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GSP Services (edit)

Revision as of 20:59, 18 October 2023

4,832 bytes added ,  20:59, 18 October 2023
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|-
 
|-
 
!  Command Header
 
!  Command Header
 +
!  Available since system version
 +
!  GSP rights required
 
!  Description
 
!  Description
 
|-
 
|-
 
| 0x00010082
 
| 0x00010082
−
| WriteHWRegs
+
|  
 +
| Yes
 +
| [[GSPGPU:WriteHWRegs|WriteHWRegs]]
 
|-
 
|-
 
| 0x00020084
 
| 0x00020084
−
| WriteHWRegsWithMask
+
|  
 +
| Yes
 +
| [[GSPGPU:WriteHWRegsWithMask|WriteHWRegsWithMask]]
 +
|-
 +
| 0x00030082
 +
|
 +
| Yes
 +
| [[GSPGPU:WriteHWRegRepeat|WriteHWRegRepeat]]
 
|-
 
|-
 
| 0x00040080
 
| 0x00040080
−
| ReadHWRegs
+
|  
 +
| Yes
 +
| [[GSPGPU:ReadHWRegs|ReadHWRegs]]
 
|-
 
|-
 
| 0x00050200
 
| 0x00050200
−
| SetBufferSwap
+
|  
 +
| Yes
 +
| [[GSPGPU:SetBufferSwap|SetBufferSwap]]
 +
|-
 +
| 0x00060082
 +
|
 +
| No
 +
| SetCommandList (Stubbed)
 
|-
 
|-
 
| 0x000700C2
 
| 0x000700C2
−
| RequestDma
+
|
 +
| No
 +
| RequestDma (Stubbed)
 
|-
 
|-
 
| 0x00080082
 
| 0x00080082
−
| FlushDataCache
+
|  
 +
| No
 +
| [[GSPGPU:FlushDataCache|FlushDataCache]]
 +
|-
 +
| 0x00090082
 +
|
 +
| No
 +
| [[GSPGPU:InvalidateDataCache|InvalidateDataCache]]
 +
|-
 +
| 0x000A0044
 +
|
 +
| No
 +
| RegisterInterruptEvents (Stubbed)
 +
|-
 +
| 0x000B0040
 +
|
 +
| See below
 +
| [[GSPGPU:SetLcdForceBlack|SetLcdForceBlack]]
 +
|-
 +
| 0x000C0000
 +
|
 +
| No
 +
| [[GSPGPU:TriggerCmdReqQueue|TriggerCmdReqQueue]]
 +
|-
 +
| 0x000D0140
 +
|
 +
| No
 +
| SetDisplayTransfer (Stubbed)
 +
|-
 +
| 0x000E0180
 +
|
 +
| No
 +
| SetTextureCopy (Stubbed)
 
|-
 
|-
 
| 0x000F0200
 
| 0x000F0200
−
| SetMemoryFill
+
|
 +
| No
 +
| SetMemoryFill (Stubbed)
 +
|-
 +
| 0x00100040
 +
|
 +
| No
 +
| [[GSPGPU:SetAxiConfigQoSMode|SetAxiConfigQoSMode]]
 
|-
 
|-
−
| 0x000B0040
+
| 0x00110040
−
| SetLcdForceBlack
+
|  
 +
| No
 +
| [[GSPGPU:SetPerfLogMode|SetPerfLogMode]]
 
|-
 
|-
 
| 0x00120000
 
| 0x00120000
−
| GetPerfLog
+
|  
 +
| No
 +
| [[GSPGPU:GetPerfLog|GetPerfLog]]
 
|-
 
|-
 
| 0x00130042
 
| 0x00130042
−
| RegisterInterruptRelayQueue
+
|  
 +
| No
 +
| [[GSPGPU:RegisterInterruptRelayQueue|RegisterInterruptRelayQueue]]
 +
|-
 +
| 0x00140000
 +
|
 +
| No
 +
| [[GSPGPU:UnregisterInterruptRelayQueue|UnregisterInterruptRelayQueue]]
 +
|-
 +
| 0x00150002
 +
|
 +
| No
 +
| [[GSPGPU:TryAcquireRight|TryAcquireRight]]
 
|-
 
|-
 
| 0x00160042
 
| 0x00160042
−
| AcquireRight (bool unk, 0, u32 processhandle)
+
|  
 +
| No
 +
| [[GSPGPU:AcquireRight|AcquireRight]]
 
|-
 
|-
 
| 0x00170000
 
| 0x00170000
−
| ReleaseRight
+
|  
 +
| No
 +
| [[GSPGPU:ReleaseRight|ReleaseRight]]
 +
|-
 +
| 0x00180000
 +
|
 +
| No
 +
| [[GSPGPU:ImportDisplayCaptureInfo|ImportDisplayCaptureInfo]]
 +
|-
 +
| 0x00190000
 +
|
 +
| See below
 +
| [[GSPGPU:SaveVramSysArea|SaveVramSysArea]]
 +
|-
 +
| 0x001A0000
 +
|
 +
| See below
 +
| [[GSPGPU:RestoreVramSysArea|RestoreVramSysArea]]
 
|-
 
|-
 
| 0x001B0000
 
| 0x001B0000
−
| ResetGpuCore
+
|  
 +
| Yes
 +
| [[GSPGPU:ResetGpuCore|ResetGpuCore]]
 +
|-
 +
| 0x001C0040
 +
|
 +
| No
 +
| [[GSPGPU:SetLedForceOff|SetLedForceOff]]
 +
|-
 +
| 0x001D0040
 +
|
 +
| No
 +
| SetTestCommand (Stubbed)
 +
|-
 +
| 0x001E0080
 +
|
 +
| No
 +
| [[GSPGPU:SetInternalPriorities|SetInternalPriorities]]
 +
|-
 +
| 0x001F0082
 +
| [[8.0.0-18]]
 +
| No
 +
| [[GSPGPU:StoreDataCache|StoreDataCache]]
 
|}
 
|}
   −
==WriteHWRegs Request==
+
The GSP module starts a thread for handling commands for each service session, a maximum of 4 processes can use this service at once. Official applications have an optional code-path which [[GSPGPU:WriteHWRegs|writes]] to registers during initialization, this is normally not used however.
 +
 
 +
If a process has acquired rights, attempting to [[GSPGPU:SetLcdForceBlack|set LCDs to black]] from another process will fail.
 +
Saving/restoring VRAM requires bit0 of process [[GSPGPU:RegisterInterruptRelayQueue|flags]] to be set.
 +
 
 +
= GSP service "gsp::Lcd" =
 
{| class="wikitable" border="1"
 
{| class="wikitable" border="1"
 
|-
 
|-
−
!  Index Word
+
!  Command Header
 +
!  Available since system version
 
!  Description
 
!  Description
 
|-
 
|-
−
| 0
+
| 0x00010040
−
| Header code [0x00010082]
+
|  
 +
| [[GSPLCD:EnableABL|EnableABL]]
 
|-
 
|-
−
| 1
+
| 0x00020040
−
| GPU Address - 0x1EB00000
+
|  
 +
| [[GSPLCD:DisableABL|DisableABL]]
 
|-
 
|-
−
| 2
+
| 0x00030080
−
| Size
+
|  
 +
| [[GSPLCD:SetRSLut|SetRSLut]]
 
|-
 
|-
−
| 3
+
| 0x000400C0
−
| (Size<<14) <nowiki>|</nowiki> 2
+
|  
 +
| [[GSPLCD:SetRSParams|SetRSParams]]
 
|-
 
|-
−
| 4
+
| 0x00050140
−
| Data Pointer
+
|  
 +
| [[GSPLCD:SetABLArea|SetABLArea]]
 +
|-
 +
| 0x00060140
 +
|
 +
| ?
 +
|-
 +
| 0x00070080
 +
|
 +
| [[GSPLCD:SetInertia|SetInertia]]
 +
|-
 +
| 0x000800C0
 +
|
 +
| [[GSPLCD:SetDitherMode|SetDitherMode]]
 +
|-
 +
| 0x00090140
 +
|
 +
| [[GSPLCD:SetDitherParams|SetDitherParams]]
 +
|-
 +
| 0x000A0080
 +
|
 +
| [[GSPLCD:SetBrightnessRaw|SetBrightnessRaw]]
 +
|-
 +
| 0x000B0080
 +
|
 +
| [[GSPLCD:SetBrightness|SetBrightness]]
 +
|-
 +
| 0x000C0040
 +
|
 +
| [[GSPLCD:ReloadConfig|ReloadConfig]]
 +
|-
 +
| 0x000D0040
 +
|
 +
| [[GSPLCD:RestoreConfig|RestoreConfig]]
 +
|-
 +
| 0x000E0000
 +
|
 +
| [[GSPLCD:GetPowerState|GetPowerState]]
 +
|-
 +
| 0x000F0000
 +
|
 +
| [[GSPLCD:PowerOnAllBacklights|PowerOnAllBacklights]]
 +
|-
 +
| 0x00100000
 +
|
 +
| [[GSPLCD:PowerOffAllBacklights|PowerOffAllBacklights]]
 +
|-
 +
| 0x00110040
 +
|
 +
| [[GSPLCD:PowerOnBacklight|PowerOnBacklight]]
 +
|-
 +
| 0x00120040
 +
|
 +
| [[GSPLCD:PowerOffBacklight|PowerOffBacklight]]
 +
|-
 +
| 0x00130040
 +
|
 +
| [[GSPLCD:SetLedForceOff|SetLedForceOff]]
 +
|-
 +
| 0x00140000
 +
| [[8.0.0-18]]
 +
| [[GSPLCD:GetVendor|GetVendor]] New3DS-only, stubbed on Old3DS: This only returns an error. Uninitialized data(not set by this command itself) is also written to u8 cmdreply_word[2].
 +
|-
 +
| 0x00150040
 +
| [[8.0.0-18]]
 +
| [[GSPLCD:GetBrightness|GetBrightness]] New3DS-only, stubbed on Old3DS: This only returns an error. Uninitialized data(not set by this command itself) is also written to u32 cmdreply_word[2].
 
|}
 
|}
 +
 +
Unlike gsp::Gpu, GSP module does not start a separate thread for handling these service commands.
 +
 +
= Version history =
 +
{| class="wikitable" border="1"
 +
|-
 +
!  Version
 +
!  Changes
 +
|-
 +
| [[8.0.0-18|v8196]]
 +
| Support for the new LINEAR memory region was implemented(for cache commands and vaddr->physaddr conversion). Support for the new process-mem 0x1E800000 region(however the GPU can't actually access this memory) was added for vaddr->physaddr conversion. Originally GSP module ignored vaddr->physaddr conversion errors(like with vaddrs outside of the handled ranges) and just wrote physaddr value0 to the GPU registers, however now GSP module returns an error for that instead(see [[GSP_Shared_Memory#Command_Buffer_Header|here]] regarding errors being written to GSP shared-mem). New services commands were added too, see above.
 +
|}
 +
 +
=New3DS=
 +
There's separate GSP-module titles for Old3DS and New3DS. PTM CheckNew3DS is only used by the New3DS title, for copying that flag into a state field. Elsewhere that field is checked for running additional code only on New3DS, for processing various state / using [[QTM_Services|QTM]] commands.
Kynex7510
53

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