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NV services (view source)

Revision as of 18:39, 12 February 2020

13,633 bytes added ,  18:39, 12 February 2020
no edit summary
Line 7: Line 7:     
Each service is used by:
 
Each service is used by:
−
* "nvdrv": regular applications
+
* "nvdrv": Applications.
−
* "nvdrv:a": applets
+
** [[#Permissions|Permission]] mask is [3.0.0+] 0xA82B ([1.0.0-2.3.0] 0x2B).
−
* "nvdrv:s": sysmodules
+
* "nvdrv:a": Applets.
−
* "nvdrv:t": factory titles
+
** [[#Permissions|Permission]] mask is [3.0.0+] 0x10A9 ([1.0.0-2.3.0] 0xA9).
 +
* "nvdrv:s": Sysmodules.
 +
** [[#Permissions|Permission]] mask is [3.0.0+] 0x439E ([1.0.0-2.3.0] 0x39E).
 +
* "nvdrv:t": Factory.
 +
** [[#Permissions|Permission]] mask is 0xFFFFFFFF.
    
{| class="wikitable" border="1"
 
{| class="wikitable" border="1"
Line 30: Line 34:  
| 6 || [[#GetStatus]]
 
| 6 || [[#GetStatus]]
 
|-
 
|-
−
| 7 || [[#SetAruid]]
+
| 7 || [[#SetAruidForTest]]
 
|-
 
|-
−
| 8 || [[#SetAruidByPID]]
+
| 8 || [[#SetAruid]]
 
|-
 
|-
 
| 9 || [[#DumpGraphicsMemoryInfo]]
 
| 9 || [[#DumpGraphicsMemoryInfo]]
Line 42: Line 46:  
| 12 || [3.0.0+] [[#Ioctl3]]
 
| 12 || [3.0.0+] [[#Ioctl3]]
 
|-
 
|-
−
| 13 || [3.0.0+] [[#FinishInitialize]]
+
| 13 || [3.0.0+] [[#SetGraphicsFirmwareMemoryMarginEnabled]]
 
|}
 
|}
   Line 84: Line 88:  
Takes no input. Returns 0x10-bytes and an output u32 ('''error_code''').
 
Takes no input. Returns 0x10-bytes and an output u32 ('''error_code''').
   −
== SetAruid ==
+
== SetAruidForTest ==
 
Takes an input u64 which must [[IPC_Marshalling|match]] the user-process PID ([[Applet_Manager_services#AppletResourceUserId|AppletResourceUserId]]). Returns an output u32 ('''error_code''').
 
Takes an input u64 which must [[IPC_Marshalling|match]] the user-process PID ([[Applet_Manager_services#AppletResourceUserId|AppletResourceUserId]]). Returns an output u32 ('''error_code''').
   −
== SetAruidByPID ==
+
== SetAruid ==
 
Takes a PID-descriptor and an u64 which must [[IPC_Marshalling|match]] the user-process PID ([[Applet_Manager_services#AppletResourceUserId|AppletResourceUserId]]). Returns an output u32 ('''error_code''').
 
Takes a PID-descriptor and an u64 which must [[IPC_Marshalling|match]] the user-process PID ([[Applet_Manager_services#AppletResourceUserId|AppletResourceUserId]]). Returns an output u32 ('''error_code''').
    
== DumpGraphicsMemoryInfo ==
 
== DumpGraphicsMemoryInfo ==
−
No input or output. Does nothing.
+
No input or output.
    
== InitializeDevtools ==
 
== InitializeDevtools ==
−
Takes a copy-handle and an input u32. Returns an output u32 ('''error_code''').
+
Takes a copy-handle ('''transfer_memory''') and an input u32 ('''transfer_memory_size'''). Returns an output u32 ('''error_code''').
    
== Ioctl2 ==
 
== Ioctl2 ==
Line 103: Line 107:  
Cmdhdr_word1 is 0x100B instead of 0xC0B.
 
Cmdhdr_word1 is 0x100B instead of 0xC0B.
   −
== FinishInitialize ==
+
== SetGraphicsFirmwareMemoryMarginEnabled ==
 
Takes an input u64. No output.
 
Takes an input u64. No output.
   Line 109: Line 113:     
Official user-processes starting with 3.0.0 now use this at the end of nvdrv service init with value 0x1.
 
Official user-processes starting with 3.0.0 now use this at the end of nvdrv service init with value 0x1.
 +
 +
= Permissions =
 +
Each nvdrv service is initialized with a bitfield that controls access to nodes and other operations.
 +
 +
{| class="wikitable" border="1"
 +
!  Bits
 +
!  Description
 +
|-
 +
| 0
 +
| Can access [[#Channels|/dev/nvhost-gpu]], [[#/dev/nvhost-ctrl-gpu|/dev/nvhost-ctrl-gpu]] and [[#/dev/nvhost-as-gpu|/dev/nvhost-as-gpu]].
 +
|-
 +
| 1
 +
| Can access [[#/dev/nvhost-dbg-gpu|/dev/nvhost-dbg-gpu]] and [[#/dev/nvhost-prof-gpu|/dev/nvhost-prof-gpu]].
 +
|-
 +
| 2
 +
| Can access [[#/dev/nvsched-ctrl|/dev/nvsched-ctrl]].
 +
|-
 +
| 3
 +
| Can access [[#Channels|/dev/nvhost-vic]].
 +
|-
 +
| 4
 +
| Can access [[#Channels|/dev/nvhost-msenc]].
 +
|-
 +
| 5
 +
| Can access [[#Channels|/dev/nvhost-nvdec]].
 +
|-
 +
| 6
 +
|
 +
|-
 +
| 7
 +
| Can access [[#Channels|/dev/nvhost-nvjpg]].
 +
|-
 +
| 8
 +
| Can access [[#Channels|/dev/nvhost-display]], [[#/dev/nvcec-ctrl|/dev/nvcec-ctrl]], [[#/dev/nvhdcp_up-ctrl|/dev/nvhdcp_up-ctrl]], [[#/dev/nvdisp-ctrl|/dev/nvdisp-ctrl]], [[#/dev/nvdisp-disp0, /dev/nvdisp-disp1|/dev/nvdisp-disp0]], [[#/dev/nvdisp-disp0, /dev/nvdisp-disp1|/dev/nvdisp-disp1]], [[#/dev/nvdcutil-disp0, /dev/nvdcutil-disp1|/dev/nvdcutil-disp0]] and [[#/dev/nvdcutil-disp0, /dev/nvdcutil-disp1|/dev/nvdcutil-disp1]].
 +
|-
 +
| 9
 +
| Can duplicate [[#/dev/nvmap|nvmap]] handles from other processes with [[#NVMAP_IOC_FROM_ID|NVMAP_IOC_FROM_ID]].
 +
|-
 +
| 10
 +
| Can use [[#SetAruidForTest|SetAruidForTest]].
 +
|-
 +
| 11
 +
| Can use [[#SetGraphicsFirmwareMemoryMarginEnabled|SetGraphicsFirmwareMemoryMarginEnabled]].
 +
|-
 +
| 12
 +
| Can duplicate exported [[#/dev/nvmap|nvmap]] handles from other processes with [[#NVMAP_IOC_FROM_ID|NVMAP_IOC_FROM_ID]].
 +
|-
 +
| 13
 +
|
 +
|-
 +
| 14
 +
| Can use [[#NVMAP_IOC_EXPORT_FOR_ARUID|NVMAP_IOC_EXPORT_FOR_ARUID]] and [[#NVMAP_IOC_REMOVE_EXPORT_FOR_ARUID|NVMAP_IOC_REMOVE_EXPORT_FOR_ARUID]].
 +
|-
 +
| 15
 +
|
 +
|-
 +
| 16-31
 +
| Unused.
 +
|}
 +
 +
Nodes [[#/dev/nvmap|/dev/nvmap]], [[#/dev/nvhost-ctrl|/dev/nvhost-ctrl]] and [[#/dev/nverpt-ctrl|/dev/nverpt-ctrl]] are always accessible.
    
= Ioctls =
 
= Ioctls =
Line 216: Line 281:     
=== NVHOST_IOCTL_CTRL_GET_CONFIG ===
 
=== NVHOST_IOCTL_CTRL_GET_CONFIG ===
−
Gets configured settings. Not available in production mode.
+
Returns configured settings. Not available in production mode.
    
   struct {
 
   struct {
Line 366: Line 431:  
     __in  u32 handle;
 
     __in  u32 handle;
 
     u32      pad;
 
     u32      pad;
−
     __out u64 refcount;
+
     __out u64 address;
 
     __out u32 size;
 
     __out u32 size;
 
     __out u32 flags;    // 1=NOT_FREED_YET
 
     __out u32 flags;    // 1=NOT_FREED_YET
Line 709: Line 774:  
     __out u64 runlist_id;
 
     __out u64 runlist_id;
 
     __out u64 debt;
 
     __out u64 debt;
−
     __out u64 unk_event1;   // 3.0.0+ only
+
     __out u64 unk0;           // 3.0.0+ only
−
     __out u64 unk_event2;   // 3.0.0+ only
+
     __out u64 unk1;           // 3.0.0+ only
 
   };
 
   };
   Line 718: Line 783:  
   struct {
 
   struct {
 
     __in u32 fence_id;
 
     __in u32 fence_id;
−
     __in u32 fence_value;
+
     __in u32 fence_thresh;
 
     __in u32 swap_interval;
 
     __in u32 swap_interval;
 
   };
 
   };
Line 735: Line 800:  
! Value || Direction || Size || Description
 
! Value || Direction || Size || Description
 
|-
 
|-
−
| 0xC1280701 || Inout || 296 || NVERPT_TELEMETRY_SUBMIT_DATA
+
| 0xC1280701 || Inout || 296 || [[#NVERPT_TELEMETRY_SUBMIT_DATA]]
 
|-
 
|-
−
| 0xCF580702 || Inout || 3928 || NVERPT_TELEMETRY_SUBMIT_DATA_EX
+
| 0xCF580702 || Inout || 3928 || [[#NVERPT_TELEMETRY_SUBMIT_DISPLAY_DATA]]
 
|}
 
|}
 +
 +
=== NVERPT_TELEMETRY_SUBMIT_DATA ===
 +
Sends test data for creating a new [[Error_Report_services|Error Report]].
 +
 +
  struct {
 +
    __in u64 TestU64;
 +
    __in u32 TestU32;
 +
    __in u8  padding0[4];
 +
    __in s64 TestI64;
 +
    __in s32 TestI32;
 +
    __in u8  TestString[32];
 +
    __in u8  TestU8Array[8];
 +
    __in u32 TestU8Array_size;
 +
    __in u32 TestU32Array[8];
 +
    __in u32 TestU32Array_size;
 +
    __in u64 TestU64Array[8];
 +
    __in u32 TestU64Array_size;
 +
    __in s32 TestI32Array[8];
 +
    __in u32 TestI32Array_size;
 +
    __in s64 TestI64Array[8];
 +
    __in u32 TestI64Array_size;
 +
    __in u16 TestU16;
 +
    __in u8  TestU8;
 +
    __in s16 TestI16;
 +
    __in s8  TestI8;
 +
    __in u8  padding1[5];
 +
  };
 +
 +
=== NVERPT_TELEMETRY_SUBMIT_DISPLAY_DATA ===
 +
Sends display data for creating a new [[Error_Report_services|Error Report]].
 +
 +
  struct {
 +
    __in u32 CodecType;
 +
    __in u32 DecodeBuffers;
 +
    __in u32 FrameWidth;
 +
    __in u32 FrameHeight;
 +
    __in u8  ColorPrimaries;
 +
    __in u8  TransferCharacteristics;
 +
    __in u8  MatrixCoefficients;
 +
    __in u8  padding;
 +
    __in u32 DisplayWidth;
 +
    __in u32 DisplayHeight;
 +
    __in u32 DARWidth;
 +
    __in u32 DARHeight;
 +
    __in u32 ColorFormat;
 +
    __in u32 ColorSpace[8];
 +
    __in u32 ColorSpace_size;
 +
    __in u32 SurfaceLayout[8];
 +
    __in u32 SurfaceLayout_size;
 +
    __in u8  ErrorString[64];      // must be "Error detected = 0x1000000"
 +
    __in u32 VideoDecState;
 +
    __in u8  VideoLog[3712];
 +
    __in u32 VideoLog_size;
 +
  };
    
== /dev/nvhost-as-gpu ==
 
== /dev/nvhost-as-gpu ==
Line 766: Line 885:  
| 0x40284109 || In || 40 || [[#NVGPU_AS_IOCTL_INITIALIZE_EX]]
 
| 0x40284109 || In || 40 || [[#NVGPU_AS_IOCTL_INITIALIZE_EX]]
 
|-
 
|-
−
| 0xC038410A || Inout || 56 || NVGPU_AS_IOCTL_MAP_BUFFER_EX
+
| 0xC038410A || Inout || 56 || [[#NVGPU_AS_IOCTL_MAP_BUFFER_EX]]
 
|-
 
|-
 
| 0xC0??4114 || Inout || Variable || [[#NVGPU_AS_IOCTL_REMAP]]
 
| 0xC0??4114 || Inout || Variable || [[#NVGPU_AS_IOCTL_REMAP]]
Line 779: Line 898:     
=== NVGPU_AS_IOCTL_ALLOC_SPACE ===
 
=== NVGPU_AS_IOCTL_ALLOC_SPACE ===
−
This one reserves pages in the device address space.
+
Reserves pages in the device address space.
    
   struct {
 
   struct {
Line 793: Line 912:     
=== NVGPU_AS_IOCTL_FREE_SPACE ===
 
=== NVGPU_AS_IOCTL_FREE_SPACE ===
−
This one frees pages from the device address space.
+
Frees pages from the device address space.
    
   struct {
 
   struct {
Line 802: Line 921:     
=== NVGPU_AS_IOCTL_MAP_BUFFER ===
 
=== NVGPU_AS_IOCTL_MAP_BUFFER ===
−
Map a memory region in the device address space. Identical to Linux driver pretty much.
+
Maps a memory region in the device address space. Identical to Linux driver pretty much.
   −
On success, the mapped memory region is locked by having [[SVC#MemoryState]] bit34 set.
+
On success, the mapped memory region is granted the [[SVC#MemoryAttribute|DeviceShared]] attribute.
    
   struct {
 
   struct {
Line 818: Line 937:     
=== NVGPU_AS_IOCTL_MODIFY ===
 
=== NVGPU_AS_IOCTL_MODIFY ===
−
Modify a memory region in the device address space.
+
Modifies a memory region in the device address space.
    
Unaligned size will cause a [[#Panic]].
 
Unaligned size will cause a [[#Panic]].
   −
On success, the mapped memory region is locked by having [[SVC#MemoryState]] bit34 set.
+
On success, the mapped memory region is granted the [[SVC#MemoryAttribute|DeviceShared]] attribute.
    
   struct {
 
   struct {
−
     __in   u32 flags;          // bit0: fixed_offset, bit2: cacheable
+
     __in     u32 flags;          // bit0: fixed_offset, bit2: cacheable
−
     __in   u32 kind;          // -1 is default
+
     __in     u32 kind;          // -1 is default
−
     __in   u32 nvmap_handle;
+
     __in     u32 nvmap_handle;
−
     __inout u32 page_size;      // 0 means don't care
+
     __inout   u32 page_size;      // 0 means don't care
−
     __in   u64 buffer_offset;
+
     __in     u64 buffer_offset;
−
     __in   u64 mapping_size;
+
     __in     u64 mapping_size;
 
     __inout  u64 offset;
 
     __inout  u64 offset;
 
   };
 
   };
    
=== NVGPU_AS_IOCTL_UNMAP_BUFFER ===
 
=== NVGPU_AS_IOCTL_UNMAP_BUFFER ===
−
Unmap a memory region from the device address space.
+
Unmaps a memory region from the device address space.
    
  struct {
 
  struct {
Line 852: Line 971:     
=== NVGPU_AS_IOCTL_GET_VA_REGIONS ===
 
=== NVGPU_AS_IOCTL_GET_VA_REGIONS ===
−
Nintendo modified to get rid of pointer in struct.
+
Nintendo's custom implementation to get rid of pointer in struct.
    
   struct va_region {
 
   struct va_region {
Line 862: Line 981:  
    
 
    
 
   struct {
 
   struct {
−
     u64         not_used;  // (contained output user ptr on linux, ignored)
+
     u64           not_used;  // (contained output user ptr on linux, ignored)
−
     __inout u32 bufsize;    // forced to 2*sizeof(struct va_region)
+
     __inout u32   bufsize;    // forced to 2*sizeof(struct va_region)
−
     u32         pad;
+
     u32           pad;
−
     __out struct va_region regions[2];
+
     __out struct va_region regions[2];
 
   };
 
   };
   Line 876: Line 995:  
     __in u32 flags;          // passes 0
 
     __in u32 flags;          // passes 0
 
     __in u32 reserved;        // ignored; passes 0
 
     __in u32 reserved;        // ignored; passes 0
−
     __in u64 unk0;
+
     __in u64 va_range_start;
−
     __in u64 unk1;
+
    __in u64 va_range_end;
−
     __in u64 unk2;
+
    __in u64 va_range_split;
 +
  };
 +
 
 +
=== NVGPU_AS_IOCTL_MAP_BUFFER_EX ===
 +
Maps a memory region in the device address space with extra params.
 +
 
 +
    struct {
 +
    __in      u32 flags;          // bit0: fixed_offset, bit2: cacheable
 +
    __in      u32 kind;          // -1 is default
 +
    __in      u32 nvmap_handle;
 +
    __inout  u32 page_size;      // 0 means don't care
 +
    __in      u64 buffer_offset;
 +
     __in     u64 mapping_size;
 +
    __inout  u64 offset;
 +
     __in     u64 unk0;
 +
    __in      u32 unk1;
 +
    u32            pad;
 
   };
 
   };
   Line 885: Line 1,020:     
   struct remap_entry {
 
   struct remap_entry {
−
     __in u16 flags;       // 0 or 4
+
     __in u16 flags;           // 0 or 4
 
     __in u16 kind;           
 
     __in u16 kind;           
 
     __in u32 nvmap_handle;
 
     __in u32 nvmap_handle;
−
     __in u32 padding;
+
     __in u32 map_offset;
−
     __in u32 offset;      // (alloc_space_offset >> 0x10)
+
     __in u32 gpu_offset;      // (alloc_space_offset >> 0x10)
−
     __in u32 pages;       // alloc_space_pages
+
     __in u32 pages;           // alloc_space_pages
 
   };
 
   };
 
   
 
   
Line 990: Line 1,125:  
| 0xC0B04705 || Inout || 176 || [[#NVGPU_GPU_IOCTL_GET_CHARACTERISTICS]]
 
| 0xC0B04705 || Inout || 176 || [[#NVGPU_GPU_IOCTL_GET_CHARACTERISTICS]]
 
|-
 
|-
−
| 0xC0184706 || Inout || 24 || NVGPU_GPU_IOCTL_GET_TPC_MASKS
+
| 0xC0184706 || Inout || 24 || [[#NVGPU_GPU_IOCTL_GET_TPC_MASKS]]
 
|-
 
|-
 
| 0x40084707 || In || 8 || [[#NVGPU_GPU_IOCTL_FLUSH_L2]]
 
| 0x40084707 || In || 8 || [[#NVGPU_GPU_IOCTL_FLUSH_L2]]
 
|-
 
|-
−
| 0x4008470D || In || 8 || NVGPU_GPU_IOCTL_INVAL_ICACHE
+
| 0x4008470D || In || 8 || [[#NVGPU_GPU_IOCTL_INVAL_ICACHE]]
 
|-
 
|-
−
| 0x4008470E || In || 8 || NVGPU_GPU_IOCTL_SET_MMUDEBUG_MODE
+
| 0x4008470E || In || 8 || [[#NVGPU_GPU_IOCTL_SET_MMU_DEBUG_MODE]]
 
|-
 
|-
−
| 0x4010470F || In || 16 || NVGPU_GPU_IOCTL_SET_SM_DEBUG_MODE
+
| 0x4010470F || In || 16 || [[#NVGPU_GPU_IOCTL_SET_SM_DEBUG_MODE]]
 
|-
 
|-
−
| 0xC0304710</br>([1.0.0-6.1.0] 0xC0084710) || Inout || 48 || NVGPU_GPU_IOCTL_WAIT_FOR_PAUSE
+
| 0xC0304710</br>([1.0.0-6.1.0] 0xC0084710) || Inout || 48</br>([1.0.0-6.1.0] 8) || [[#NVGPU_GPU_IOCTL_WAIT_FOR_PAUSE]]
 
|-
 
|-
−
| 0x80084711 || Out || 8 || NVGPU_GPU_IOCTL_GET_TPC_EXCEPTION_EN_STATUS
+
| 0x80084711 || Out || 8 || [[#NVGPU_GPU_IOCTL_GET_TPC_EXCEPTION_EN_STATUS]]
 
|-
 
|-
−
| 0x80084712 || Out || 8 || NVGPU_GPU_IOCTL_NUM_VSMS
+
| 0x80084712 || Out || 8 || [[#NVGPU_GPU_IOCTL_NUM_VSMS]]
 
|-
 
|-
−
| 0xC0044713 || Inout || 4 || NVGPU_GPU_IOCTL_VSMS_MAPPING
+
| 0xC0044713 || Inout || 4 || [[#NVGPU_GPU_IOCTL_VSMS_MAPPING]]
 
|-
 
|-
 
| 0x80084714 || Out || 8 || [[#NVGPU_GPU_IOCTL_ZBC_GET_ACTIVE_SLOT_MASK]]
 
| 0x80084714 || Out || 8 || [[#NVGPU_GPU_IOCTL_ZBC_GET_ACTIVE_SLOT_MASK]]
 
|-
 
|-
−
| 0x80044715 || Out || 4 || NVGPU_GPU_IOCTL_PMU_GET_GPU_LOAD
+
| 0x80044715 || Out || 4 || [[#NVGPU_GPU_IOCTL_PMU_GET_GPU_LOAD]]
 
|-
 
|-
−
| 0x40084716 || In || 8 || NVGPU_GPU_IOCTL_SET_CG_CONTROLS
+
| 0x40084716 || In || 8 || [[#NVGPU_GPU_IOCTL_SET_CG_CONTROLS]]
 
|-
 
|-
−
| 0xC0084717 || Inout || 8 || NVGPU_GPU_IOCTL_GET_CG_CONTROLS
+
| 0xC0084717 || Inout || 8 || [[#NVGPU_GPU_IOCTL_GET_CG_CONTROLS]]
 
|-
 
|-
−
| 0x40084718 || In || 8 || NVGPU_GPU_IOCTL_SET_PG_CONTROLS
+
| 0x40084718 || In || 8 || [[#NVGPU_GPU_IOCTL_SET_PG_CONTROLS]]
 
|-
 
|-
−
| 0xC0084719 || Inout || 8 || NVGPU_GPU_IOCTL_GET_PG_CONTROLS
+
| 0xC0084719 || Inout || 8 || [[#NVGPU_GPU_IOCTL_GET_PG_CONTROLS]]
 
|-
 
|-
−
| 0x8018471A || Out || 24 || NVGPU_GPU_IOCTL_PMU_DUMP_ELPG_STATS
+
| 0x8018471A || Out || 24 || [[#NVGPU_GPU_IOCTL_PMU_GET_ELPG_RESIDENCY_GATING]]
 
|-
 
|-
−
| 0xC008471B || Inout || 8 || NVGPU_GPU_IOCTL_GET_ERROR_CHANNEL_USER_DATA
+
| 0xC008471B || Inout || 8 || [[#NVGPU_GPU_IOCTL_GET_ERROR_CHANNEL_USER_DATA]]
 
|-
 
|-
−
| 0xC010471C || Inout || 16 || NVGPU_GPU_IOCTL_GET_GPU_TIME
+
| 0xC010471C || Inout || 16 || [[#NVGPU_GPU_IOCTL_GET_GPU_TIME]]
 
|-
 
|-
−
| 0xC108471D || Inout || 264 || NVGPU_GPU_IOCTL_GET_CPU_TIME_CORRELATION_INFO
+
| 0xC108471D || Inout || 264 || [[#NVGPU_GPU_IOCTL_GET_CPU_TIME_CORRELATION_INFO]]
 
|}
 
|}
   Line 1,078: Line 1,213:  
=== NVGPU_GPU_IOCTL_GET_CHARACTERISTICS ===
 
=== NVGPU_GPU_IOCTL_GET_CHARACTERISTICS ===
 
Returns the GPU characteristics. Modified to return inline data instead of using a pointer.
 
Returns the GPU characteristics. Modified to return inline data instead of using a pointer.
 +
 +
[3.0.0+] Uses either [[#Ioctl|Ioctl]] or [[#Ioctl3|Ioctl3]].
    
   struct gpu_characteristics {
 
   struct gpu_characteristics {
−
     u32 arch;                           // 0x120 (NVGPU_GPU_ARCH_GM200)
+
     u32 arch;                       // 0x120 (NVGPU_GPU_ARCH_GM200)
−
     u32 impl;                           // 0xB (NVGPU_GPU_IMPL_GM20B) or 0xE (NVGPU_GPU_IMPL_GM20B_B)
+
     u32 impl;                       // 0xB (NVGPU_GPU_IMPL_GM20B) or 0xE (NVGPU_GPU_IMPL_GM20B_B)
−
     u32 rev;                           // 0xA1 (Revision A1)
+
     u32 rev;                       // 0xA1 (Revision A1)
−
     u32 num_gpc;                       // 0x1
+
     u32 num_gpc;                   // 0x1
−
     u64 l2_cache_size;                 // 0x40000
+
     u64 l2_cache_size;             // 0x40000
−
     u64 on_board_video_memory_size;     // 0x0 (not used)
+
     u64 on_board_video_memory_size; // 0x0 (not used)
−
     u32 num_tpc_per_gpc;               // 0x2
+
     u32 num_tpc_per_gpc;           // 0x2
−
     u32 bus_type;                       // 0x20 (NVGPU_GPU_BUS_TYPE_AXI)
+
     u32 bus_type;                   // 0x20 (NVGPU_GPU_BUS_TYPE_AXI)
−
     u32 big_page_size;                 // 0x20000
+
     u32 big_page_size;             // 0x20000
−
     u32 compression_page_size;         // 0x20000
+
     u32 compression_page_size;     // 0x20000
−
     u32 pde_coverage_bit_count;         // 0x1B
+
     u32 pde_coverage_bit_count;     // 0x1B
−
     u32 available_big_page_sizes;       // 0x30000
+
     u32 available_big_page_sizes;   // 0x30000
−
     u32 gpc_mask;                       // 0x1
+
     u32 gpc_mask;                   // 0x1
−
     u32 sm_arch_sm_version;             // 0x503 (Maxwell Generation 5.0.3)
+
     u32 sm_arch_sm_version;         // 0x503 (Maxwell Generation 5.0.3)
−
     u32 sm_arch_spa_version;           // 0x503 (Maxwell Generation 5.0.3)
+
     u32 sm_arch_spa_version;       // 0x503 (Maxwell Generation 5.0.3)
−
     u32 sm_arch_warp_count;             // 0x80
+
     u32 sm_arch_warp_count;         // 0x80
−
     u32 gpu_va_bit_count;               // 0x28
+
     u32 gpu_va_bit_count;           // 0x28
−
     u32 reserved;                       // NULL
+
     u32 reserved;                   // NULL
−
     u64 flags;                         // 0x55
+
     u64 flags;                     // 0x55 (HAS_SYNCPOINTS | SUPPORT_SPARSE_ALLOCS | SUPPORT_CYCLE_STATS | SUPPORT_CYCLE_STATS_SNAPSHOT)
−
     u32 twod_class;                     // 0x902D (FERMI_TWOD_A)
+
     u32 twod_class;                 // 0x902D (FERMI_TWOD_A)
−
     u32 threed_class;                   // 0xB197 (MAXWELL_B)
+
     u32 threed_class;               // 0xB197 (MAXWELL_B)
−
     u32 compute_class;                 // 0xB1C0 (MAXWELL_COMPUTE_B)
+
     u32 compute_class;             // 0xB1C0 (MAXWELL_COMPUTE_B)
−
     u32 gpfifo_class;                   // 0xB06F (MAXWELL_CHANNEL_GPFIFO_A)
+
     u32 gpfifo_class;               // 0xB06F (MAXWELL_CHANNEL_GPFIFO_A)
−
     u32 inline_to_memory_class;         // 0xA140 (KEPLER_INLINE_TO_MEMORY_B)
+
     u32 inline_to_memory_class;     // 0xA140 (KEPLER_INLINE_TO_MEMORY_B)
−
     u32 dma_copy_class;                 // 0xB0B5 (MAXWELL_DMA_COPY_A)
+
     u32 dma_copy_class;             // 0xB0B5 (MAXWELL_DMA_COPY_A)
−
     u32 max_fbps_count;                 // 0x1
+
     u32 max_fbps_count;             // 0x1
−
     u32 fbp_en_mask;                   // 0x0 (disabled)
+
     u32 fbp_en_mask;               // 0x0 (disabled)
−
     u32 max_ltc_per_fbp;               // 0x2
+
     u32 max_ltc_per_fbp;           // 0x2
−
     u32 max_lts_per_ltc;               // 0x1
+
     u32 max_lts_per_ltc;           // 0x1
−
     u32 max_tex_per_tpc;               // 0x0 (not supported)
+
     u32 max_tex_per_tpc;           // 0x0 (not supported)
−
     u32 max_gpc_count;                 // 0x1
+
     u32 max_gpc_count;             // 0x1
−
     u32 rop_l2_en_mask_0;               // 0x21D70 (fuse_status_opt_rop_l2_fbp_r)
+
     u32 rop_l2_en_mask_0;           // 0x21D70 (fuse_status_opt_rop_l2_fbp_r)
−
     u32 rop_l2_en_mask_1;               // 0x0
+
     u32 rop_l2_en_mask_1;           // 0x0
−
     u64 chipname;                       // 0x6230326D67 ("gm20b")
+
     u64 chipname;                   // 0x6230326D67 ("gm20b")
−
     u64 gr_compbit_store_base_hw;       // 0x0 (not supported)
+
     u64 gr_compbit_store_base_hw;   // 0x0 (not supported)
 
   };
 
   };
 
   
 
   
Line 1,121: Line 1,258:  
     __in    u64 gpu_characteristics_buf_addr;  // ignored, but must not be NULL
 
     __in    u64 gpu_characteristics_buf_addr;  // ignored, but must not be NULL
 
     __out struct gpu_characteristics gc;
 
     __out struct gpu_characteristics gc;
 +
  };
 +
 +
=== NVGPU_GPU_IOCTL_GET_TPC_MASKS ===
 +
Returns the TPC mask value for each GPC. Modified to return inline data instead of using a pointer.
 +
 +
[3.0.0+] Uses either [[#Ioctl|Ioctl]] or [[#Ioctl3|Ioctl3]].
 +
 +
  struct {
 +
    __in u32 mask_buf_size;      // ignored, but must not be NULL
 +
    __in u32 reserved[3];
 +
    __out u64 mask_buf;          // receives one 32-bit TPC mask per GPC (GPC 0 and GPC 1)
 
   };
 
   };
   Line 1,128: Line 1,276:  
   struct {
 
   struct {
 
     __in u32 flush;          // l2_flush | l2_invalidate << 1 | fb_flush << 2
 
     __in u32 flush;          // l2_flush | l2_invalidate << 1 | fb_flush << 2
−
     u32     reserved;
+
     __in u32 reserved;
 +
  };
 +
 
 +
=== NVGPU_GPU_IOCTL_INVAL_ICACHE ===
 +
Invalidates the GPU instruction cache. Identical to Linux driver.
 +
 
 +
  struct {
 +
    __in s32 channel_fd;
 +
    __in u32 reserved;
 +
  };
 +
 
 +
=== NVGPU_GPU_IOCTL_SET_MMU_DEBUG_MODE ===
 +
Sets the GPU MMU debug mode. Identical to Linux driver.
 +
 
 +
  struct {
 +
    __in u32 state;
 +
    __in u32 reserved;
 +
  };
 +
 
 +
=== NVGPU_GPU_IOCTL_SET_SM_DEBUG_MODE ===
 +
Sets the GPU SM debug mode. Identical to Linux driver.
 +
 
 +
  struct {
 +
    __in s32 channel_fd;
 +
    __in u32 enable;
 +
    __in u64 sms;
 +
  };
 +
 
 +
=== NVGPU_GPU_IOCTL_WAIT_FOR_PAUSE ===
 +
Waits until all valid warps on the GPU SM are paused and returns their current state.
 +
 
 +
  struct {
 +
    __in u64 pwarpstate;
 +
  };
 +
 
 +
[6.1.0+] This command was modified to return inline data instead of using a pointer.
 +
 
 +
  struct {
 +
    __out u64 sm0_valid_warps;
 +
    __out u64 sm0_trapped_warps;
 +
    __out u64 sm0_paused_warps;
 +
    __out u64 sm1_valid_warps;
 +
    __out u64 sm1_trapped_warps;
 +
    __out u64 sm1_paused_warps;
 +
  };
 +
 
 +
=== NVGPU_GPU_IOCTL_GET_TPC_EXCEPTION_EN_STATUS ===
 +
Returns a mask value describing all active TPC exceptions. Identical to Linux driver.
 +
 
 +
  struct {
 +
    __out u64 tpc_exception_en_sm_mask;
 +
  };
 +
 
 +
=== NVGPU_GPU_IOCTL_NUM_VSMS ===
 +
Returns the number of GPU SM units present. Identical to Linux driver.
 +
 
 +
  struct {
 +
    __out u32 num_vsms;
 +
    __out u32 reserved;
 +
  };
 +
 
 +
=== NVGPU_GPU_IOCTL_VSMS_MAPPING ===
 +
Returns mapping information on each GPU SM unit. Modified to return inline data instead of using a pointer.
 +
 
 +
  struct {
 +
    __out u8 sm0_gpc_index;
 +
    __out u8 sm0_tpc_index;
 +
    __out u8 sm1_gpc_index;
 +
    __out u8 sm1_tpc_index;
 
   };
 
   };
   Line 1,138: Line 1,354:  
     __out u32 mask;
 
     __out u32 mask;
 
   };
 
   };
 +
 +
=== NVGPU_GPU_IOCTL_PMU_GET_GPU_LOAD ===
 +
Returns the GPU load value from the PMU.
 +
 +
  struct {
 +
    __out u32 pmu_gpu_load;
 +
  };
 +
 +
=== NVGPU_GPU_IOCTL_SET_CG_CONTROLS ===
 +
Sets the clock gate control value.
 +
 +
  struct {
 +
    __in u32 cg_mask;
 +
    __in u32 cg_value;
 +
  };
 +
 +
=== NVGPU_GPU_IOCTL_GET_CG_CONTROLS ===
 +
Returns the clock gate control value.
 +
 +
  struct {
 +
    __in u32 cg_mask;
 +
    __out u32 cg_value;
 +
  };
 +
 +
=== NVGPU_GPU_IOCTL_SET_PG_CONTROLS ===
 +
Sets the power gate control value.
 +
 +
  struct {
 +
    __in u32 pg_mask;
 +
    __in u32 pg_value;
 +
  };
 +
 +
=== NVGPU_GPU_IOCTL_GET_PG_CONTROLS ===
 +
Returns the power gate control value.
 +
 +
  struct {
 +
    __in u32 pg_mask;
 +
    __out u32 pg_value;
 +
  };
 +
 +
=== NVGPU_GPU_IOCTL_PMU_GET_ELPG_RESIDENCY_GATING ===
 +
Returns the GPU PMU ELPG residency gating values.
 +
 +
  struct {
 +
    __out u64 pg_ingating_time_us;
 +
    __out u64 pg_ungating_time_us;
 +
    __out u64 pg_gating_cnt;
 +
  };
 +
 +
=== NVGPU_GPU_IOCTL_GET_ERROR_CHANNEL_USER_DATA ===
 +
Returns user specific data from the error channel, if one exists.
 +
 +
  struct {
 +
    __out u64 data;
 +
  };
 +
 +
=== NVGPU_GPU_IOCTL_GET_GPU_TIME ===
 +
Returns the timestamp from the GPU's nanosecond timer (PTIMER). Identical to Linux driver.
 +
 +
  struct {
 +
    __out u64 gpu_timestamp;      // raw GPU counter (PTIMER) value
 +
    __out u64 reserved;
 +
  };
 +
 +
=== NVGPU_GPU_IOCTL_GET_CPU_TIME_CORRELATION_INFO ===
 +
Returns CPU/GPU timestamp pairs for correlation analysis. Identical to Linux driver.
 +
 +
struct time_correlation_sample {
 +
  u64 cpu_timestamp;                                  // from CPU's CNTPCT_EL0 register
 +
  u64 gpu_timestamp;                                  // from GPU's PTIMER registers
 +
};
 +
 +
struct {
 +
  __out struct time_correlation_sample samples[16];  // timestamp pairs
 +
  __in u32    count;                                // number of pairs to read
 +
  __in u32    source_id;                            // cpu clock source id (must be 1)
 +
};
    
== Channels ==
 
== Channels ==
Line 1,147: Line 1,440:  
| /dev/nvhost-gpu || GPU
 
| /dev/nvhost-gpu || GPU
 
|-
 
|-
−
| /dev/nvhost-vic || Video Image Compositor
+
| /dev/nvhost-msenc || Video Encoder
 
|-
 
|-
 
| /dev/nvhost-nvdec || Video Decoder
 
| /dev/nvhost-nvdec || Video Decoder
 
|-
 
|-
 
| /dev/nvhost-nvjpg || JPEG Decoder
 
| /dev/nvhost-nvjpg || JPEG Decoder
 +
|-
 +
| /dev/nvhost-vic || Video Image Compositor
 +
|-
 +
| /dev/nvhost-display || Display
 
|}
 
|}
   Line 1,158: Line 1,455:  
! Value || Size || Description
 
! Value || Size || Description
 
|-
 
|-
−
| 0xC0??0001 || Variable || NVHOST_IOCTL_CHANNEL_SUBMIT
+
| 0xC0??0001 || Variable || [[#NVHOST_IOCTL_CHANNEL_SUBMIT]]
 
|-
 
|-
−
| 0xC0080002 || 8 || NVHOST_IOCTL_CHANNEL_GET_SYNCPOINT
+
| 0xC0080002 || 8 || [[#NVHOST_IOCTL_CHANNEL_GET_SYNCPOINT]]
 
|-
 
|-
−
| 0xC0080003 || 8 || NVHOST_IOCTL_CHANNEL_GET_WAITBASE
+
| 0xC0080003 || 8 || [[#NVHOST_IOCTL_CHANNEL_GET_WAITBASE]]
 
|-
 
|-
 
| 0xC0080004 || 8 || [[#NVHOST_IOCTL_CHANNEL_GET_MODMUTEX]]
 
| 0xC0080004 || 8 || [[#NVHOST_IOCTL_CHANNEL_GET_MODMUTEX]]
 
|-
 
|-
−
| 0x40040007 || 4 || NVHOST_IOCTL_CHANNEL_SET_SUBMIT_TIMEOUT
+
| 0x40040007 || 4 || [[#NVHOST_IOCTL_CHANNEL_SET_SUBMIT_TIMEOUT]]
−
|-
  −
| 0x40080008 || 8 || NVHOST_IOCTL_CHANNEL_SET_CLK_RATE
   
|-
 
|-
−
| 0xC0??0009 || Variable || NVHOST_IOCTL_CHANNEL_MAP_CMD_BUFFER
+
| 0x40080008 || 8 || [[#NVHOST_IOCTL_CHANNEL_SET_CLK_RATE]]
 
|-
 
|-
−
| 0xC0??000A || Variable || NVHOST_IOCTL_CHANNEL_UNMAP_CMD_BUFFER
+
| 0xC0??0009 || Variable || [[#NVHOST_IOCTL_CHANNEL_MAP_CMD_BUFFER]]
 
|-
 
|-
−
| 0x00000013 || 0 || NVHOST_IOCTL_CHANNEL_SET_TIMEOUT_EX
+
| 0xC0??000A || Variable || [[#NVHOST_IOCTL_CHANNEL_UNMAP_CMD_BUFFER]]
 
|-
 
|-
−
| 0xC0080014 || 8 || NVHOST_IOCTL_CHANNEL_GET_CLK_RATE
+
| 0x00000013 || 0 || [[#NVHOST_IOCTL_CHANNEL_SET_TIMEOUT_EX]]
 
|-
 
|-
−
| 0xC0080023 || 8 || NVHOST_IOCTL_CHANNEL_GET_CLK_RATE_EX
+
| 0xC0080023</br>([1.0.0-7.0.1] 0xC0080014) || 8 || [[#NVHOST_IOCTL_CHANNEL_GET_CLK_RATE]]
 
|-
 
|-
−
| 0xC0??0024 || Variable || NVHOST_IOCTL_CHANNEL_SUBMIT_EX
+
| 0xC0??0024 || Variable || [[#NVHOST_IOCTL_CHANNEL_SUBMIT_EX]]
 
|-
 
|-
−
| 0xC0??0025 || Variable || NVHOST_IOCTL_CHANNEL_MAP_CMD_BUFFER_EX
+
| 0xC0??0025 || Variable || [[#NVHOST_IOCTL_CHANNEL_MAP_CMD_BUFFER_EX]]
 
|-
 
|-
−
| 0xC0??0026 || Variable || NVHOST_IOCTL_CHANNEL_UNMAP_CMD_BUFFER_EX
+
| 0xC0??0026 || Variable || [[#NVHOST_IOCTL_CHANNEL_UNMAP_CMD_BUFFER_EX]]
 
|- style="border-top: double"
 
|- style="border-top: double"
 
| 0x40044801 || 4 || [[#NVGPU_IOCTL_CHANNEL_SET_NVMAP_FD]]
 
| 0x40044801 || 4 || [[#NVGPU_IOCTL_CHANNEL_SET_NVMAP_FD]]
 
|-
 
|-
−
| 0x40044803 || 4 || NVGPU_IOCTL_CHANNEL_SET_TIMEOUT
+
| 0x40044803 || 4 || [[#NVGPU_IOCTL_CHANNEL_SET_TIMEOUT]]
 
|-
 
|-
 
| 0x40084805 || 8 || [[#NVGPU_IOCTL_CHANNEL_ALLOC_GPFIFO]]
 
| 0x40084805 || 8 || [[#NVGPU_IOCTL_CHANNEL_ALLOC_GPFIFO]]
 
|-
 
|-
−
| 0x40184806 || || NVGPU_IOCTL_CHANNEL_WAIT
+
| 0x40184806 || 24 || [[#NVGPU_IOCTL_CHANNEL_WAIT]]
 
|-
 
|-
−
| 0xC0044807 || 4 || NVGPU_IOCTL_CHANNEL_CYCLE_STATS
+
| 0xC0044807 || 4 || [[#NVGPU_IOCTL_CHANNEL_CYCLE_STATS]]
 
|-
 
|-
 
| 0xC0??4808 || Variable || [[#NVGPU_IOCTL_CHANNEL_SUBMIT_GPFIFO]]
 
| 0xC0??4808 || Variable || [[#NVGPU_IOCTL_CHANNEL_SUBMIT_GPFIFO]]
Line 1,200: Line 1,495:  
| 0xC0104809 || 16 || [[#NVGPU_IOCTL_CHANNEL_ALLOC_OBJ_CTX]]
 
| 0xC0104809 || 16 || [[#NVGPU_IOCTL_CHANNEL_ALLOC_OBJ_CTX]]
 
|-
 
|-
−
| 0x4008480A || || NVHOST_IOCTL_CHANNEL_FREE_OBJ_CTX
+
| 0x4008480A || 8 || [[#NVHOST_IOCTL_CHANNEL_FREE_OBJ_CTX]]
 
|-
 
|-
 
| 0xC010480B || 16 || [[#NVGPU_IOCTL_CHANNEL_ZCULL_BIND]]
 
| 0xC010480B || 16 || [[#NVGPU_IOCTL_CHANNEL_ZCULL_BIND]]
Line 1,218: Line 1,513:  
| 0x40084812 || 8 || [[#NVGPU_IOCTL_CHANNEL_EVENT_ID_CONTROL]]
 
| 0x40084812 || 8 || [[#NVGPU_IOCTL_CHANNEL_EVENT_ID_CONTROL]]
 
|-
 
|-
−
| 0xC0104813 || 16 || NVGPU_IOCTL_CHANNEL_CYCLE_STATS_SNAPSHOT
+
| 0xC0104813 || 16 || [[#NVGPU_IOCTL_CHANNEL_CYCLE_STATS_SNAPSHOT]]
 
|-
 
|-
−
| 0x80804816 || 128 || NVGPU_IOCTL_CHANNEL_GET_ERROR_INFO
+
| 0x80804816 || 128 || [[#NVGPU_IOCTL_CHANNEL_GET_ERROR_INFO]]
 
|-
 
|-
 
| 0xC0104817 || 16 || [[#NVGPU_IOCTL_CHANNEL_GET_ERROR_NOTIFICATION]]
 
| 0xC0104817 || 16 || [[#NVGPU_IOCTL_CHANNEL_GET_ERROR_NOTIFICATION]]
Line 1,232: Line 1,527:  
| 0xC018481B || 24 || [[#NVGPU_IOCTL_CHANNEL_SUBMIT_GPFIFO_EX]]
 
| 0xC018481B || 24 || [[#NVGPU_IOCTL_CHANNEL_SUBMIT_GPFIFO_EX]]
 
|-
 
|-
−
| 0xC018481C || 24 || [[#NVGPU_IOCTL_CHANNEL_SUBMIT_GPFIFO_EX2]]
+
| 0xC018481C || 24 || [[#NVGPU_IOCTL_CHANNEL_SUBMIT_GPFIFO_RETRY_EX]]
 
|-
 
|-
 
| 0xC004481D || 4 || [[#NVGPU_IOCTL_CHANNEL_SET_TIMESLICE]]
 
| 0xC004481D || 4 || [[#NVGPU_IOCTL_CHANNEL_SET_TIMESLICE]]
 
|- style="border-top: double"
 
|- style="border-top: double"
−
| 0x40084714 || 8 || NVGPU_IOCTL_CHANNEL_SET_USER_DATA
+
| 0x40084714 || 8 || [[#NVGPU_IOCTL_CHANNEL_SET_USER_DATA]]
 
|-
 
|-
−
| 0x80084715 || 8 || NVGPU_IOCTL_CHANNEL_GET_USER_DATA
+
| 0x80084715 || 8 || [[#NVGPU_IOCTL_CHANNEL_GET_USER_DATA]]
 
|}
 
|}
 +
 +
=== NVHOST_IOCTL_CHANNEL_SUBMIT ===
 +
Submits data to the channel.
 +
 +
  struct cmdbuf {
 +
    u32 mem;
 +
    u32 offset;
 +
    u32 words;
 +
  };
 +
 
 +
  struct reloc {
 +
    u32 cmdbuf_mem;
 +
    u32 cmdbuf_offset;
 +
    u32 target;
 +
    u32 target_offset;
 +
  };
 +
 
 +
  struct reloc_shift {
 +
    u32 shift;
 +
  };
 +
 
 +
  struct syncpt_incr {
 +
    u32 syncpt_id;
 +
    u32 syncpt_incrs;
 +
  };
 +
 
 +
  struct fence {
 +
    u32 id;
 +
    u32 thresh;
 +
  };
 +
 
 +
  struct {
 +
    __in    u32 num_cmdbufs;
 +
    __in    u32 num_relocs;
 +
    __in    u32 num_syncpt_incrs;
 +
    __in    u32 num_fences;
 +
    __in    struct cmdbuf cmdbufs[];              // depends on num_cmdbufs
 +
    __in    struct reloc relocs[];                // depends on num_relocs
 +
    __in    struct reloc_shift reloc_shifts[];    // depends on num_relocs
 +
    __in    struct syncpt_incr syncpt_incrs[];    // depends on num_syncpt_incrs
 +
    __out  struct fence fences[];                // depends on num_fences
 +
  };
 +
 +
=== NVHOST_IOCTL_CHANNEL_GET_SYNCPOINT ===
 +
Returns the current syncpoint value for a given module. Identical to Linux driver.
 +
 +
  struct {
 +
    __in    u32 module_id;
 +
    __out  u32 syncpt_value;
 +
  };
 +
 +
=== NVHOST_IOCTL_CHANNEL_GET_WAITBASE ===
 +
Returns the current waitbase value for a given module. Always returns 0.
 +
 +
  struct {
 +
    __in    u32 module_id;
 +
    __out  u32 waitbase_value;
 +
  };
    
=== NVHOST_IOCTL_CHANNEL_GET_MODMUTEX ===
 
=== NVHOST_IOCTL_CHANNEL_GET_MODMUTEX ===
 
Stubbed. Does a debug print and returns 0.
 
Stubbed. Does a debug print and returns 0.
 +
 +
=== NVHOST_IOCTL_CHANNEL_SET_SUBMIT_TIMEOUT ===
 +
Sets the submit timeout value for the channel. Identical to Linux driver.
 +
 +
  struct {
 +
    __in    u32 timeout;
 +
  };
 +
 +
=== NVHOST_IOCTL_CHANNEL_SET_CLK_RATE ===
 +
Sets the clock rate value for a given module. Identical to Linux driver.
 +
 +
  struct {
 +
    __in    u32 clk_rate;
 +
    __in    u32 module_id;
 +
  };
 +
 +
=== NVHOST_IOCTL_CHANNEL_MAP_CMD_BUFFER ===
 +
Uses '''nvmap_pin''' internally to pin a given number of nvmap handles to an appropriate device physical address.
 +
 +
  struct handle {
 +
    u32 handle_id_in;                // nvmap handle to map
 +
    u32 phys_addr_out;                // returned device physical address mapped to the handle
 +
  };
 +
 +
  struct {
 +
    __in    u32 num_handles;          // number of nvmap handles to map
 +
    __in    u32 reserved;            // ignored
 +
    __in    u8  is_compr;            // memory to map is compressed
 +
    __in    u8  padding[3];          // ignored
 +
    __inout struct handle handles[];  // depends on num_handles
 +
  };
 +
 +
=== NVHOST_IOCTL_CHANNEL_UNMAP_CMD_BUFFER ===
 +
Uses '''nvmap_unpin''' internally to unpin a given number of nvmap handles from their device physical address.
 +
 +
  struct handle {
 +
    u32 handle_id_in;                // nvmap handle to unmap
 +
    u32 reserved;                    // ignored
 +
  };
 +
 +
  struct {
 +
    __in    u32 num_handles;          // number of nvmap handles to unmap
 +
    __in    u32 reserved;            // ignored
 +
    __in    u8  is_compr;            // memory to unmap is compressed
 +
    __in    u8  padding[3];          // ignored
 +
    __inout struct handle handles[];  // depends on num_handles
 +
  };
 +
 +
=== NVHOST_IOCTL_CHANNEL_SET_TIMEOUT_EX ===
 +
Sets the global timeout value for the channel. Identical to Linux driver.
 +
 +
  struct {
 +
    __in    u32 timeout;
 +
    __in    u32 flags;
 +
  };
 +
 +
=== NVHOST_IOCTL_CHANNEL_GET_CLK_RATE ===
 +
Returns the clock rate value for a given module. Identical to Linux driver.
 +
 +
  struct {
 +
    __out  u32 clk_rate;
 +
    __in    u32 module_id;
 +
  };
 +
 +
=== NVHOST_IOCTL_CHANNEL_SUBMIT_EX ===
 +
Same as [[#NVHOST_IOCTL_CHANNEL_SUBMIT|NVHOST_IOCTL_CHANNEL_SUBMIT]].
 +
 +
=== NVHOST_IOCTL_CHANNEL_MAP_CMD_BUFFER_EX ===
 +
Same as [[#NVHOST_IOCTL_CHANNEL_MAP_CMD_BUFFER|NVHOST_IOCTL_CHANNEL_MAP_CMD_BUFFER]], but calls '''nvmap_unpin''' internally in case of error.
 +
 +
=== NVHOST_IOCTL_CHANNEL_UNMAP_CMD_BUFFER_EX ===
 +
Same as [[#NVHOST_IOCTL_CHANNEL_UNMAP_CMD_BUFFER|NVHOST_IOCTL_CHANNEL_UNMAP_CMD_BUFFER]].
    
=== NVGPU_IOCTL_CHANNEL_SET_NVMAP_FD ===
 
=== NVGPU_IOCTL_CHANNEL_SET_NVMAP_FD ===
 
Binds a nvmap object to this channel. Identical to Linux driver.
 
Binds a nvmap object to this channel. Identical to Linux driver.
   −
This ioctl is a no-op in the Linux driver, not sure about Switch?
+
  struct {
 +
    __in u32 nvmap_fd;
 +
  };
 +
 
 +
=== NVGPU_IOCTL_CHANNEL_SET_TIMEOUT ===
 +
Sets the timeout value for the GPU channel. Identical to Linux driver.
    
   struct {
 
   struct {
−
     __in u32 nvmap_fd;
+
     __in u32 timeout;
 
   };
 
   };
   Line 1,259: Line 1,689:  
     __in u32 num_entries;
 
     __in u32 num_entries;
 
     __in u32 flags;
 
     __in u32 flags;
 +
  };
 +
 +
=== NVGPU_IOCTL_CHANNEL_WAIT ===
 +
Waits on channel. Identical to Linux driver.
 +
 +
  struct {
 +
    __in u32 type;            // wait type (0=notifier, 1=semaphore)
 +
    __in u32 timeout;        // wait timeout value
 +
    __in u32 dmabuf_fd;      // nvmap handle
 +
    __in u32 offset;          // nvmap memory offset
 +
    __in u32 payload;        // payload data (semaphore only)
 +
    __in u32 padding;        // ignored
 +
  };
 +
 +
=== NVGPU_IOCTL_CHANNEL_CYCLE_STATS ===
 +
Maps memory for the cycle stats buffer. Identical to Linux driver.
 +
 +
  struct {
 +
    __in u32 dmabuf_fd;  // nvmap handle
 
   };
 
   };
   Line 1,265: Line 1,714:     
   struct fence {
 
   struct fence {
−
     u32 syncpt_id;
+
     u32 id;
−
     u32 syncpt_value;
+
     u32 thresh;
 
   };
 
   };
 
    
 
    
 
   struct gpfifo_entry {
 
   struct gpfifo_entry {
−
     u64 entry;                           // gpu_iova | (unk_2bits << 40) | (size << 42) | (unk_flag << 63)
+
     u64 entry;                               // gpu_iova | (unk_2bits << 40) | (size << 42) | (unk_flag << 63)
 
   };
 
   };
 
    
 
    
Line 1,277: Line 1,726:  
     __in    u32 num_entries;                // number of fence objects being submitted
 
     __in    u32 num_entries;                // number of fence objects being submitted
 
     __in    u32 flags;
 
     __in    u32 flags;
−
     __inout struct fence fence_out;         // returned new fence object for others to wait on
+
     __inout struct fence fence_out;         // returned new fence object for others to wait on
−
     __in    struct gpfifo_entry entries[]; // depends on num_entries
+
     __in    struct gpfifo_entry entries[];   // depends on num_entries
 
   };
 
   };
   Line 1,290: Line 1,739:  
     __in  u32 flags;        // bit0: LOCKBOOST_ZERO
 
     __in  u32 flags;        // bit0: LOCKBOOST_ZERO
 
     __out u64 obj_id;      // (ignored) used for FREE_OBJ_CTX ioctl, which is not supported
 
     __out u64 obj_id;      // (ignored) used for FREE_OBJ_CTX ioctl, which is not supported
 +
  };
 +
 +
=== NVHOST_IOCTL_CHANNEL_FREE_OBJ_CTX ===
 +
Frees a graphics context object. Not supported.
 +
 +
  struct {
 +
    __in u64 obj_id;      // ignored
 
   };
 
   };
   Line 1,298: Line 1,754:  
     __in u64 gpu_va;
 
     __in u64 gpu_va;
 
     __in u32 mode;        // 0=global, 1=no_ctxsw, 2=separate_buffer, 3=part_of_regular_buf
 
     __in u32 mode;        // 0=global, 1=no_ctxsw, 2=separate_buffer, 3=part_of_regular_buf
−
     __in u32 padding;
+
     __in u32 reserved;
 
   };
 
   };
   Line 1,305: Line 1,761:     
   struct {
 
   struct {
−
     __in u64 offset; // ignored
+
     __in u64 offset;   // ignored
−
     __in u64 size;   // ignored
+
     __in u64 size;     // ignored
−
     __in u32 mem;     // must be non-zero to initialize, zero to de-initialize
+
     __in u32 mem;     // must be non-zero to initialize, zero to de-initialize
−
     __in u32 padding; // ignored
+
     __in u32 reserved; // ignored
 
   };
 
   };
   Line 1,336: Line 1,792:  
     __in u32 cmd;    // 0=disable, 1=enable, 2=clear
 
     __in u32 cmd;    // 0=disable, 1=enable, 2=clear
 
     __in u32 id;    // same id's as for [[#QueryEvent]]
 
     __in u32 id;    // same id's as for [[#QueryEvent]]
 +
  };
 +
 +
=== NVGPU_IOCTL_CHANNEL_CYCLE_STATS_SNAPSHOT ===
 +
Controls the cycle stats snapshot buffer. Identical to Linux driver.
 +
 +
  struct {
 +
    __in    u32 cmd;        // command to handle (0=flush, 1=attach, 2=detach)
 +
    __in    u32 dmabuf_fd;  // nvmap handle
 +
    __inout u32 extra;      // extra payload data/result
 +
    __in    u32 padding;    // ignored
 +
  };
 +
 +
=== NVGPU_IOCTL_CHANNEL_GET_ERROR_INFO ===
 +
Returns information on the current error notification caught by the error notifier. Exclusive to the Switch.
 +
 +
  struct {
 +
    __out u32 error_info[32];    // first word is an error code (0=no_error, 1=gr_error, 2=gr_error, 3=invalid, 4=invalid)
 
   };
 
   };
    
=== NVGPU_IOCTL_CHANNEL_GET_ERROR_NOTIFICATION ===
 
=== NVGPU_IOCTL_CHANNEL_GET_ERROR_NOTIFICATION ===
 
Returns the current error notification caught by the error notifier. Exclusive to the Switch.
 
Returns the current error notification caught by the error notifier. Exclusive to the Switch.
−
  −
Despite being marked as inout this is all output.
      
   struct {
 
   struct {
Line 1,353: Line 1,824:  
Allocates gpfifo entries with additional parameters. Exclusive to the Switch.
 
Allocates gpfifo entries with additional parameters. Exclusive to the Switch.
   −
  struct {
+
struct fence {
−
     __in u32 num_entries;
+
     u32 id;
−
     __in u32 flags;
+
     u32 thresh;
−
    __in u32 unk0;           // 1 works
+
};
−
    __in u32 unk1;
+
−
    __in u32 unk2;
+
struct {
−
    __in u32 unk3;
+
  __in   u32 num_entries;
−
    __in u32 unk4;
+
  __in   u32 num_jobs;
−
    __in u32 unk5;
+
  __in   u32 flags;
−
  };
+
  __out  struct fence fence_out;         // returned new fence object for others to wait on
 +
  __in   u32 reserved[3];                 // ignored
 +
};
    
=== NVGPU_IOCTL_CHANNEL_SUBMIT_GPFIFO_RETRY ===
 
=== NVGPU_IOCTL_CHANNEL_SUBMIT_GPFIFO_RETRY ===
−
Submits a gpfifo object (async version). Exclusive to the Switch.
+
Same as [[#NVGPU_IOCTL_CHANNEL_SUBMIT_GPFIFO|NVGPU_IOCTL_CHANNEL_SUBMIT_GPFIFO]].
−
 
  −
  struct {
  −
    u64 __gpfifo;                    // in (pointer to gpfifo fence structs; ignored)
  −
    u32 __num_entries;                // in (number of fence objects being submitted)
  −
    u32 __flags;                      // in
  −
    struct fence        __fence_out;  // out (returned new fence object for others to wait on)
  −
    struct gpfifo_entry __entries[];  // in (depends on __num_entries)
  −
  };
      
=== NVGPU_IOCTL_CHANNEL_ALLOC_GPFIFO_EX2 ===
 
=== NVGPU_IOCTL_CHANNEL_ALLOC_GPFIFO_EX2 ===
−
Allocates gpfifo entries with additional parameters and returns a fence. Exclusive to the Switch.
+
Same as [[#NVGPU_IOCTL_CHANNEL_ALLOC_GPFIFO_EX|NVGPU_IOCTL_CHANNEL_ALLOC_GPFIFO_EX]].
−
  −
  struct {
  −
    u32 __num_entries;        // in
  −
    u32 __flags;              // in
  −
    u32 __unk0;                // in (1 works)
  −
    struct fence __fence_out;  // out
  −
    u32 __unk1;                // in
  −
    u32 __unk2;                // in
  −
    u32 __unk3;                // in
  −
  };
      
=== NVGPU_IOCTL_CHANNEL_SUBMIT_GPFIFO_EX ===
 
=== NVGPU_IOCTL_CHANNEL_SUBMIT_GPFIFO_EX ===
−
Identical to [[#NVGPU_IOCTL_CHANNEL_SUBMIT_GPFIFO|NVGPU_IOCTL_CHANNEL_SUBMIT_GPFIFO]]. Uses [[#Ioctl2|Ioctl2]].
+
Same as [[#NVGPU_IOCTL_CHANNEL_SUBMIT_GPFIFO|NVGPU_IOCTL_CHANNEL_SUBMIT_GPFIFO]], but uses [[#Ioctl2|Ioctl2]].
   −
=== NVGPU_IOCTL_CHANNEL_SUBMIT_GPFIFO_EX2 ===
+
=== NVGPU_IOCTL_CHANNEL_SUBMIT_GPFIFO_RETRY_EX ===
−
Identical to [[#NVGPU_IOCTL_CHANNEL_SUBMIT_GPFIFO|NVGPU_IOCTL_CHANNEL_SUBMIT_GPFIFO]]. Uses [[#Ioctl2|Ioctl2]].
+
Same as [[#NVGPU_IOCTL_CHANNEL_SUBMIT_GPFIFO_RETRY|NVGPU_IOCTL_CHANNEL_SUBMIT_GPFIFO_RETRY]], but uses [[#Ioctl2|Ioctl2]].
    
=== NVGPU_IOCTL_CHANNEL_SET_TIMESLICE ===
 
=== NVGPU_IOCTL_CHANNEL_SET_TIMESLICE ===
Line 1,399: Line 1,854:  
   struct {
 
   struct {
 
     __in u32 timeslice;
 
     __in u32 timeslice;
 +
  };
 +
 +
=== NVGPU_IOCTL_CHANNEL_SET_USER_DATA ===
 +
Sets user specific data.
 +
 +
  struct {
 +
    __in u64 data;
 +
  };
 +
 +
=== NVGPU_IOCTL_CHANNEL_GET_USER_DATA ===
 +
Returns user specific data.
 +
 +
  struct {
 +
    __out u64 data;
 
   };
 
   };
    
= nvmemp =
 
= nvmemp =
 
NVIDIA memory profiler (this service is not available on retail units).  
 
NVIDIA memory profiler (this service is not available on retail units).  
−
/dev/nvhost-ctrl sends the ioctl NVHOST_IOCTL_CTRL_GET_CONFIG to check the config "nv!NV_MEMORY_PROFILER". If config_str returns "1", the applications attempts to talk to use nvmemp.
+
/dev/nvhost-ctrl sends the ioctl NVHOST_IOCTL_CTRL_GET_CONFIG to check the config "nv!NV_MEMORY_PROFILER". If config_str returns "1", the application attempts to use nvmemp.
    
{| class="wikitable" border="1"
 
{| class="wikitable" border="1"
Line 1,411: Line 1,880:  
| 0 || Open
 
| 0 || Open
 
|-
 
|-
−
| 1 || GetPid
+
| 1 || GetAruid
 
|}
 
|}
   Line 1,421: Line 1,890:  
! Cmd || Name
 
! Cmd || Name
 
|-
 
|-
−
| 0 || [[#OpenLog]]
+
| 0 || [[#OpenDebugFS]]
 
|-
 
|-
−
| 1 || [[#CloseLog]]
+
| 1 || [[#CloseDebugFS]]
 
|-
 
|-
−
| 2 || [[#ReadLog]]
+
| 2 || [[#GetDebugFSKeys]]
 
|-
 
|-
−
| 3 ||
+
| 3 || GetDebugFSValue
 
|-
 
|-
−
| 4 ||
+
| 4 || SetDebugFSValue
 
|}
 
|}
   −
== OpenLog ==
+
== OpenDebugFS ==
−
Takes process handle. Returns an fd.
+
Takes a process handle. Returns a u32 '''fd'''.
   −
== CloseLog ==
+
== CloseDebugFS ==
−
Takes fd and closes it.
+
Takes a u32 '''fd''' and closes it.
   −
== ReadLog ==
+
== GetDebugFSKeys ==
−
Takes fd and reads log into a type-6 buffer.
+
Takes a u32 '''fd''' and reads debug contents into a type-6 buffer.
    
= nvgem:c =
 
= nvgem:c =
Line 1,448: Line 1,917:  
! Cmd || Name
 
! Cmd || Name
 
|-
 
|-
−
| 0 ||
+
| 0 || Initialize
 
|-
 
|-
−
| 1 ||
+
| 1 || GetGemEvent
 
|-
 
|-
−
| 2 ||
+
| 2 ||  
 
|-
 
|-
−
| 3 ||
+
| 3 || RegisterUnregisterAppIdLocked
 
|-
 
|-
 
| 4 ||
 
| 4 ||
 
|-
 
|-
−
| [1.0.0-4.1.0] 5 ||
+
| [1.0.0-4.1.0] 5 || GetAruid
 
|-
 
|-
−
| 6 ||
+
| 6 || HandleDeferredErrors
 
|-
 
|-
 
| 7 || [3.0.0+]
 
| 7 || [3.0.0+]
Line 1,472: Line 1,941:  
! Cmd || Name
 
! Cmd || Name
 
|-
 
|-
−
| 0 ||
+
| 0 || Initialize
 
|-
 
|-
−
| 1 ||
+
| 1 || GetAruid
 
|-
 
|-
−
| 2 ||
+
| [1.0.0-8.1.0] 2 || ReadNextCdBlock
 
|-
 
|-
 
| 3 || [8.0.0+]
 
| 3 || [8.0.0+]
Retrieved from "https://switchbrew.org/wiki/Special:MobileDiff/7669...8722"

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