Nintendo Switch Brew

Changes

NV services (view source)

Revision as of 21:12, 15 April 2017

358 bytes removed ,  21:12, 15 April 2017
cleaning up, removing speculation
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| 1 || [[#Ioctl]]
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| 1 || Ioctl
 
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| 2 || Close
 
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   −
== Ioctl ==
+
== Ioctls ==
−
Just like any standard build of the NVIDIA graphics' drivers, the nvdrv:a service operates mainly by processing requests and sending them to the kernel (not verified) through IOCtl commands.
+
The ioctl number is generated with the following primitive (see Linux kernel):
−
Note that these commands are generated with the following primitive (see Linux kernel):
      
  #define _IOC(inout, group, num, len) \
 
  #define _IOC(inout, group, num, len) \
 
     (inout | ((len & IOCPARM_MASK) << 16) | ((group) << 8) | (num))
 
     (inout | ((len & IOCPARM_MASK) << 16) | ((group) << 8) | (num))
   −
The following table contains valid commands for group 0x00.
+
The following table contains known ioctls.
−
This group consists in commands for the "/dev/nvhost-ctrl" interface and a few global commands for every nvhost channel (e.g.: "/dev/nvhost-gpu").
+
 
 
{| class="wikitable" border="1"
 
{| class="wikitable" border="1"
−
! Value || Description || Notes
+
! Device || Value || Description || Notes
 
|-
 
|-
−
| 0xC0??0001 || NVHOST32_IOCTL_CHANNEL_SUBMIT || ?? == size is unknown
+
| /dev/nvhost-* || 0xC0??0001 || NVHOST32_IOCTL_CHANNEL_SUBMIT || ?? == size is unknown
 
|-
 
|-
−
| 0xC0080002 || NVHOST_IOCTL_CHANNEL_GET_SYNCPOINT ||
+
| /dev/nvhost-* || 0xC0080002 || NVHOST_IOCTL_CHANNEL_GET_SYNCPOINT ||
 
|-
 
|-
−
| 0xC0080003 || NVHOST_IOCTL_CHANNEL_GET_WAITBASE ||
+
| /dev/nvhost-* || 0xC0080003 || NVHOST_IOCTL_CHANNEL_GET_WAITBASE ||
 
|-
 
|-
−
| 0xC0080004 || NVHOST_IOCTL_CHANNEL_SET_TIMEOUT_EX ||
+
| /dev/nvhost-* || 0xC0080004 || NVHOST_IOCTL_CHANNEL_SET_TIMEOUT_EX ||
 
|-
 
|-
−
| 0xC01C0009 || NVHOST_IOCTL_CHANNEL_SUBMIT(?) ||
+
| /dev/nvhost-* || 0xC01C0009 || NVHOST_IOCTL_CHANNEL_SUBMIT(?) ||
 
|-
 
|-
−
| 0xC01C000A || NVHOST_IOCTL_CHANNEL_MODULE_REGRDWR(?) ||
+
| /dev/nvhost-* || 0xC01C000A || NVHOST_IOCTL_CHANNEL_MODULE_REGRDWR(?) ||
 
|-
 
|-
−
| 0xC0080014 || NVHOST_IOCTL_CTRL_SYNCPT_READ ||
+
| /dev/nvhost-* || 0xC0080014 || NVHOST_IOCTL_CTRL_SYNCPT_READ ||
 
|-
 
|-
−
| 0x40040015 || NVHOST_IOCTL_CTRL_SYNCPT_INCR ||
+
| /dev/nvhost-* || 0x40040015 || NVHOST_IOCTL_CTRL_SYNCPT_INCR ||
 
|-
 
|-
−
| 0xC00C0016 || NVHOST_IOCTL_CTRL_SYNCPT_WAIT ||
+
| /dev/nvhost-* || 0xC00C0016 || NVHOST_IOCTL_CTRL_SYNCPT_WAIT ||
 
|-
 
|-
−
| 0x40080017 || NVHOST_IOCTL_CTRL_MODULE_MUTEX ||
+
| /dev/nvhost-* || 0x40080017 || NVHOST_IOCTL_CTRL_MODULE_MUTEX ||
 
|-
 
|-
−
| 0xC0180018 || NVHOST32_IOCTL_CTRL_MODULE_REGRDWR ||
+
| /dev/nvhost-* || 0xC0180018 || NVHOST32_IOCTL_CTRL_MODULE_REGRDWR ||
 
|-
 
|-
−
| 0xC0100019 || NVHOST_IOCTL_CTRL_SYNCPT_WAITEX ||
+
| /dev/nvhost-* || 0xC0100019 || NVHOST_IOCTL_CTRL_SYNCPT_WAITEX ||
 
|-
 
|-
−
| 0xC008001A || NVHOST_IOCTL_CTRL_SYNCPT_READ_MAX ||
+
| /dev/nvhost-* || 0xC008001A || NVHOST_IOCTL_CTRL_SYNCPT_READ_MAX ||
 
|-
 
|-
−
| 0xC004001C || NVHOST_IOCTL_CTRL_GET_VERSION(?) ||
+
| /dev/nvhost-* || 0xC004001C || NVHOST_IOCTL_CTRL_GET_VERSION(?) ||
 
|-
 
|-
−
| 0xC010001D || Unknown || NvRmSyncWaitEvent (wait on event?
+
| /dev/nvhost-* || 0xC010001D || || NvRmSyncWaitEvent (wait on event?)
 
|-
 
|-
−
| 0xC010001E || Unknown || NvRmSyncWaitEvent (wait on event?)
+
| /dev/nvhost-* || 0xC010001E || || NvRmSyncWaitEvent (wait on event?)
 
|-
 
|-
−
| 0xC004001F || Unknown || NvRmSyncWaitEvent (signal event?)
+
| /dev/nvhost-* || 0xC004001F || || NvRmSyncWaitEvent (signal event?)
 
|-
 
|-
−
| 0xC0040020 || Unknown || NvRmSyncWaitEvent (signal event?)
+
| /dev/nvhost-* || 0xC0040020 || || NvRmSyncWaitEvent (signal event?)
 
|-
 
|-
−
| 0x40080021 || Unknown || Returns busy?
+
| /dev/nvhost-* || 0x40080021 || || Returns busy?
 
|-
 
|-
−
|}
+
| /dev/nvmap || 0xC0080101 || NVMAP_IOC_CREATE ||
−
 
  −
 
  −
The following table contains valid commands for group 0x01.
  −
This group consists in commands for the "/dev/nvmap" interface.
  −
{| class="wikitable" border="1"
  −
! Value || Description || Notes
   
|-
 
|-
−
| 0xC0080101 || NVMAP_IOC_CREATE ||
+
| /dev/nvmap || 0xC0080103 || NVMAP_IOC_FROM_ID ||
 
|-
 
|-
−
| 0xC0080103 || NVMAP_IOC_FROM_ID ||
+
| /dev/nvmap || 0xC0200104 || NVMAP_IOC_ALLOC ||
 
|-
 
|-
−
| 0xC0200104 || NVMAP_IOC_ALLOC ||
+
| /dev/nvmap || 0xC0180105 || NVMAP_IOC_FREE ||
 
|-
 
|-
−
| 0xC0180105 || NVMAP_IOC_FREE ||
+
| /dev/nvmap || 0xC00C0109 || NVMAP_IOC_PARAM ||
 
|-
 
|-
−
| 0xC00C0109 || NVMAP_IOC_PARAM ||
+
| /dev/nvmap || 0xC008010E || NVMAP_IOC_GET_ID ||
 
|-
 
|-
−
| 0xC008010E || NVMAP_IOC_GET_ID ||
+
| /dev/nvhost-as-gpu || 0x40044101 || NVGPU_AS_IOCTL_BIND_CHANNEL ||
 
|-
 
|-
−
|}
+
| /dev/nvhost-as-gpu || 0xC0184102 || NVGPU32_AS_IOCTL_ALLOC_SPACE ||
−
 
  −
 
  −
The following table contains valid commands for group 0x41 ('A').
  −
This group consists in commands for the "/dev/nvhost-as-gpu" interface.
  −
{| class="wikitable" border="1"
  −
! Value || Description || Notes
   
|-
 
|-
−
| 0x40044101 || NVGPU_AS_IOCTL_BIND_CHANNEL ||
+
| /dev/nvhost-as-gpu || 0xC0104103 || NVGPU_AS_IOCTL_FREE_SPACE ||
 
|-
 
|-
−
| 0xC0184102 || NVGPU32_AS_IOCTL_ALLOC_SPACE ||
+
| /dev/nvhost-as-gpu || 0xC0184104 || NVGPU_AS_IOCTL_MAP_BUFFER ||
 
|-
 
|-
−
| 0xC0104103 || NVGPU_AS_IOCTL_FREE_SPACE ||
+
| /dev/nvhost-as-gpu || 0xC0084105 || NVGPU_AS_IOCTL_UNMAP_BUFFER ||
 
|-
 
|-
−
| 0xC0184104 || NVGPU_AS_IOCTL_MAP_BUFFER ||
+
| /dev/nvhost-as-gpu || 0xC0284106 || NVGPU_AS_IOCTL_ALLOC_SPACE ||
 
|-
 
|-
−
| 0xC0084105 || NVGPU_AS_IOCTL_UNMAP_BUFFER ||
+
| /dev/nvhost-as-gpu || 0x40104107 || ||
 
|-
 
|-
−
| 0xC0284106 || NVGPU_AS_IOCTL_ALLOC_SPACE ||
+
| /dev/nvhost-as-gpu || 0xC0404108 || ||
 
|-
 
|-
−
| 0x40104107 || Unknown ||
+
| /dev/nvhost-as-gpu || 0x40284109 || ||
 
|-
 
|-
−
| 0xC0404108 || Unknown ||
+
| /dev/nvhost-as-gpu || 0xC0144114 || ||
 
|-
 
|-
−
| 0x40284109 || Unknown ||
+
| /dev/nvhost-dbg-gpu || 0xC0??4402 || NVGPU_DBG_GPU_IOCTL_REG_OPS || ?? == size is unknown
 
|-
 
|-
−
| 0xC0144114 || Unknown ||
+
| /dev/nvhost-ctrl-gpu || 0x80044701 || NVGPU_GPU_IOCTL_ZCULL_GET_CTX_SIZE ||
 
|-
 
|-
−
|}
+
| /dev/nvhost-ctrl-gpu || 0x80284702 || NVGPU_GPU_IOCTL_ZCULL_GET_INFO ||
−
 
  −
 
  −
The following table contains valid commands for group 0x44 ('D').
  −
This group consists in commands for the "/dev/nvhost-dbg-gpu" interface.
  −
{| class="wikitable" border="1"
  −
! Value || Description || Notes
   
|-
 
|-
−
| 0xC0??4402 || NVGPU_DBG_GPU_IOCTL_REG_OPS || ?? == size is unknown
+
| /dev/nvhost-ctrl-gpu || 0x402C4703 || NVGPU_GPU_IOCTL_ZBC_SET_TABLE ||
 
|-
 
|-
−
|}
+
| /dev/nvhost-ctrl-gpu || 0xC0344704 || NVGPU_GPU_IOCTL_ZBC_QUERY_TABLE ||
−
 
  −
 
  −
The following table contains valid commands for group 0x47 ('G').
  −
This group consists in commands for the "/dev/nvhost-ctrl-gpu" interface.
  −
{| class="wikitable" border="1"
  −
! Value || Description || Notes
   
|-
 
|-
−
| 0x80044701 || NVGPU_GPU_IOCTL_ZCULL_GET_CTX_SIZE ||
+
| /dev/nvhost-ctrl-gpu || 0xC0B04705 || NVGPU_GPU_IOCTL_GET_CHARACTERISTICS ||
 
|-
 
|-
−
| 0x80284702 || NVGPU_GPU_IOCTL_ZCULL_GET_INFO ||
+
| /dev/nvhost-ctrl-gpu || 0xC0184706 || NVGPU_AS_IOCTL_ALLOC_SPACE ||
 
|-
 
|-
−
| 0x402C4703 || NVGPU_GPU_IOCTL_ZBC_SET_TABLE ||
+
| /dev/nvhost-ctrl-gpu || 0x40084707 || ||
 
|-
 
|-
−
| 0xC0344704 || NVGPU_GPU_IOCTL_ZBC_QUERY_TABLE ||
+
| /dev/nvhost-ctrl-gpu || 0x4008470E || ||
 
|-
 
|-
−
| 0xC0B04705 || NVGPU_GPU_IOCTL_GET_CHARACTERISTICS ||
+
| /dev/nvhost-ctrl-gpu || 0x4010470F || ||
 
|-
 
|-
−
| 0xC0184706 || NVGPU_AS_IOCTL_ALLOC_SPACE ||
+
| /dev/nvhost-ctrl-gpu || 0xC0084710 || ||
 
|-
 
|-
−
| 0x40084707 || Unknown ||
+
| /dev/nvhost-ctrl-gpu || 0x80084711 || ||
 
|-
 
|-
−
| 0x4008470E || Unknown ||
+
| /dev/nvhost-ctrl-gpu || 0x80084714 || ||
 
|-
 
|-
−
| 0x4010470F || Unknown ||
+
| /dev/nvhost-ctrl-gpu || 0xC008471B || ||
−
|-
  −
| 0xC0084710 || Unknown ||
  −
|-
  −
| 0x80084711 || Unknown ||
  −
|-
  −
| 0x80084714 || Unknown ||
  −
|-
  −
| 0xC008471B || Unknown ||
  −
|-
  −
| 0xC010471C || Unknown ||
  −
|-
  −
|}
  −
 
  −
 
  −
The following table contains valid commands for group 0x48 ('H').
  −
This group consists in commands common to all nvhost channels (depending if they implement them or not), but they are only listed here in relation to the interface "/dev/nvhost-gpu" for convenience.
  −
{| class="wikitable" border="1"
  −
! Value || Description || Notes
   
|-
 
|-
−
| 0x40044801 || NVGPU_IOCTL_CHANNEL_SET_NVMAP_FD ||
+
| /dev/nvhost-ctrl-gpu || 0xC010471C || ||
 
|-
 
|-
−
| 0x40044803 || NVGPU_IOCTL_CHANNEL_SET_TIMEOUT(?) ||
+
| /dev/nvhost-* || 0x40044801 || NVGPU_IOCTL_CHANNEL_SET_NVMAP_FD ||
 
|-
 
|-
−
| 0x40084805 || NVGPU_IOCTL_CHANNEL_SET_TIMEOUT_EX(?) ||
+
| /dev/nvhost-* || 0x40044803 || NVGPU_IOCTL_CHANNEL_SET_TIMEOUT(?) ||
 
|-
 
|-
−
| 0xC0044807 || NVGPU_IOCTL_CHANNEL_CYCLE_STATS ||
+
| /dev/nvhost-* || 0x40084805 || NVGPU_IOCTL_CHANNEL_SET_TIMEOUT_EX(?) ||
 
|-
 
|-
−
| 0xC0184808 || NVGPU_IOCTL_CHANNEL_SUBMIT_GPFIFO ||
+
| /dev/nvhost-* || 0xC0044807 || NVGPU_IOCTL_CHANNEL_CYCLE_STATS ||
 
|-
 
|-
−
| 0xC0104809 || NVGPU_IOCTL_CHANNEL_ALLOC_OBJ_CTX ||
+
| /dev/nvhost-* || 0xC0184808 || NVGPU_IOCTL_CHANNEL_SUBMIT_GPFIFO ||
 
|-
 
|-
−
| 0x4008480A || NVGPU_IOCTL_CHANNEL_FREE_OBJ_CTX ||
+
| /dev/nvhost-* || 0xC0104809 || NVGPU_IOCTL_CHANNEL_ALLOC_OBJ_CTX ||
 
|-
 
|-
−
| 0xC010480B || NVGPU_IOCTL_CHANNEL_ZCULL_BIND ||
+
| /dev/nvhost-* || 0x4008480A || NVGPU_IOCTL_CHANNEL_FREE_OBJ_CTX ||
 
|-
 
|-
−
| 0xC018480C || NVGPU_IOCTL_CHANNEL_SET_ERROR_NOTIFIER ||
+
| /dev/nvhost-* || 0xC010480B || NVGPU_IOCTL_CHANNEL_ZCULL_BIND ||
 
|-
 
|-
−
| 0x4004480D || NVGPU_IOCTL_CHANNEL_OPEN ||
+
| /dev/nvhost-* || 0xC018480C || NVGPU_IOCTL_CHANNEL_SET_ERROR_NOTIFIER ||
 
|-
 
|-
−
| 0x0000480E || NVGPU_IOCTL_CHANNEL_ENABLE ||
+
| /dev/nvhost-* || 0x4004480D || NVGPU_IOCTL_CHANNEL_OPEN ||
 
|-
 
|-
−
| 0x0000480F || NVGPU_IOCTL_CHANNEL_DISABLE ||
+
| /dev/nvhost-* || 0x0000480E || NVGPU_IOCTL_CHANNEL_ENABLE ||
 
|-
 
|-
−
| 0x00004810 || NVGPU_IOCTL_CHANNEL_PREEMPT ||
+
| /dev/nvhost-* || 0x0000480F || NVGPU_IOCTL_CHANNEL_DISABLE ||
 
|-
 
|-
−
| 0x00004811 || NVGPU_IOCTL_CHANNEL_FORCE_RESET ||
+
| /dev/nvhost-* || 0x00004810 || NVGPU_IOCTL_CHANNEL_PREEMPT ||
 
|-
 
|-
−
| 0x40084812 || NVGPU_IOCTL_CHANNEL_EVENTS_CTRL ||
+
| /dev/nvhost-* || 0x00004811 || NVGPU_IOCTL_CHANNEL_FORCE_RESET ||
 
|-
 
|-
−
| 0xC0104813 || NVGPU_IOCTL_CHANNEL_CYCLE_STATS_SNAPSHOT ||
+
| /dev/nvhost-* || 0x40084812 || NVGPU_IOCTL_CHANNEL_EVENTS_CTRL ||
 
|-
 
|-
−
| 0x80804816 || Unknown ||
+
| /dev/nvhost-* || 0xC0104813 || NVGPU_IOCTL_CHANNEL_CYCLE_STATS_SNAPSHOT ||
 
|-
 
|-
−
| 0xC0104817 || Unknown ||
+
| /dev/nvhost-* || 0x80804816 || ||
 
|-
 
|-
−
| 0x40204818 || Unknown ||
+
| /dev/nvhost-* || 0xC0104817 || ||
 
|-
 
|-
−
| 0xC0184819 || Unknown ||
+
| /dev/nvhost-* || 0x40204818 || ||
 
|-
 
|-
−
| 0xC020481A || Unknown ||
+
| /dev/nvhost-* || 0xC0184819 || ||
 
|-
 
|-
 +
| /dev/nvhost-* || 0xC020481A || ||
 
|}
 
|}
Retrieved from "https://switchbrew.org/wiki/Special:MobileDiff/337"