Nintendo Switch Brew

NV services: Difference between revisions

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== /dev/nvsched-ctrl ==
== /dev/nvsched-ctrl ==
This is a customized scheduler device.
The way this device is exposed and configured is exclusive to the Switch, since other sources don't have an actual interface for the scheduler.
{| class="wikitable" border="1"
{| class="wikitable" border="1"
! Value || Direction || Size || Description || Notes
! Value || Direction || Size || Description || Notes
|-
|-
| 0x00000601 || - || 0 || NVSCHED_CTRL_ENABLE ||
| 0x00000601 || - || 0 || [[#NVSCHED_CTRL_ENABLE]] ||
|-
|-
| 0x00000602 || - || 0 || NVSCHED_CTRL_DISABLE ||
| 0x00000602 || - || 0 || [[#NVSCHED_CTRL_DISABLE]] ||
|-
|-
| 0x40180603 || In || 24 || NVSCHED_CTRL_ADD_APPLICATION ||
| 0x40180603 || In || 24 || [[#NVSCHED_CTRL_ADD_APPLICATION]] ||
|-
|-
| 0x40180604 || In || 24 || NVSCHED_CTRL_UPDATE_APPLICATION ||
| 0x40180604 || In || 24 || [[#NVSCHED_CTRL_UPDATE_APPLICATION]] ||
|-
|-
| 0x40080605 || In || 8 || NVSCHED_CTRL_REMOVE_APPLICATION ||
| 0x40080605 || In || 8 || [[#NVSCHED_CTRL_REMOVE_APPLICATION]] ||
|-
|-
| 0x80080606 || Out || 8 || NVSCHED_CTRL_GET_ID ||
| 0x80080606 || Out || 8 || [[#NVSCHED_CTRL_GET_ID]] ||
|-
|-
| 0x80080607 || Out || 8 || NVSCHED_CTRL_ADD_RUNLIST ||
| 0x80080607 || Out || 8 || [[#NVSCHED_CTRL_ADD_RUNLIST]] ||
|-
|-
| 0x40180608 || In || 24 || NVSCHED_CTRL_UPDATE_RUNLIST ||
| 0x40180608 || In || 24 || [[#NVSCHED_CTRL_UPDATE_RUNLIST]] ||
|-
|-
| 0x40100609 || In || 16 || NVSCHED_CTRL_LINK_RUNLIST ||
| 0x40100609 || In || 16 || [[#NVSCHED_CTRL_LINK_RUNLIST]] ||
|-
|-
| 0x4010060A || In || 16 || NVSCHED_CTRL_UNLINK_RUNLIST ||
| 0x4010060A || In || 16 || [[#NVSCHED_CTRL_UNLINK_RUNLIST]] ||
|-
|-
| 0x4008060B || In || 8 || NVSCHED_CTRL_REMOVE_RUNLIST ||
| 0x4008060B || In || 8 || [[#NVSCHED_CTRL_REMOVE_RUNLIST]] ||
|-
|-
| 0x8001060C || Out || 1 || NVSCHED_CTRL_HAS_OVERRUN_EVENT ||
| 0x8001060C || Out || 1 || [[#NVSCHED_CTRL_HAS_OVERRUN_EVENT]] ||
|-
|-
| 0x8010060D || Out || 16 || NVSCHED_CTRL_GET_NEXT_OVERRUN_EVENT ||
| 0x8010060D || Out || 16 || [[#NVSCHED_CTRL_GET_NEXT_OVERRUN_EVENT]] ||
|-
|-
| 0x400C060E || In || 12 || NVSCHED_CTRL_PUT_CONDUCTOR_FLIP_FENCE ||
| 0x400C060E || In || 12 || [[#NVSCHED_CTRL_PUT_CONDUCTOR_FLIP_FENCE]] ||
|-
|-
| 0x4008060F || In || 8 || NVSCHED_CTRL_DETACH_APPLICATION ||
| 0x4008060F || In || 8 || [[#NVSCHED_CTRL_DETACH_APPLICATION]] ||
|-
|-
| 0x40100610 || In || 16 || ||
| 0x40100610 || In || 16 || ||
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|-
|-
|}
|}
=== NVSCHED_CTRL_ENABLE ===
Enables the scheduler.
=== NVSCHED_CTRL_DISABLE ===
Disables the scheduler.
=== NVSCHED_CTRL_ADD_APPLICATION ===
Adds a new application to the scheduler.
  struct {
    __in u64 application_id;
    __in u64 priority;
    __in u64 timeslice;
  };
=== NVSCHED_CTRL_UPDATE_APPLICATION ===
Updates the application parameters in the scheduler.
  struct {
    __in u64 application_id;
    __in u64 priority;
    __in u64 timeslice;
  };
=== NVSCHED_CTRL_REMOVE_APPLICATION ===
Removes the application from the scheduler.
  struct {
    __in u64 application_id;
  };
=== NVSCHED_CTRL_GET_ID ===
Returns the ID of the last scheduled object.
  struct {
    __out u64 id;
  };
=== NVSCHED_CTRL_ADD_RUNLIST ===
Creates a new runlist and returns it's ID.
  struct {
    __out u64 runlist_id;
  };
=== NVSCHED_CTRL_UPDATE_RUNLIST ===
Updates the runlist parameters in the scheduler.
  struct {
    __in u64 runlist_id;
    __in u64 priority;
    __in u64 timeslice;
  };
=== NVSCHED_CTRL_LINK_RUNLIST ===
Links a runlist to a given application in the scheduler.
  struct {
    __in u64 runlist_id;
    __in u64 application_id;
  };
=== NVSCHED_CTRL_UNLINK_RUNLIST ===
Unlinks a runlist from a given application in the scheduler.
  struct {
    __in u64 runlist_id;
    __in u64 application_id;
  };
=== NVSCHED_CTRL_REMOVE_RUNLIST ===
Removes the runlist from the scheduler.
  struct {
    __in u64 runlist_id;
  };
=== NVSCHED_CTRL_HAS_OVERRUN_EVENT ===
Returns a boolean to tell if the scheduler has an overrun event or not.
  struct {
    __out u8 has_overrun;
  };
=== NVSCHED_CTRL_GET_NEXT_OVERRUN_EVENT ===
Returns the overrun event's data from the scheduler.
  struct {
    __out u64 runlist_id;
    __out u64 debt;
  };
=== NVSCHED_CTRL_PUT_CONDUCTOR_FLIP_FENCE ===
Installs a fence swap event?
  struct {
    __in u32 fence_id;
    __in u32 fence_value;
    __in u32 swap_interval;
  };
=== NVSCHED_CTRL_DETACH_APPLICATION ===
Places the given application in detached state.
  struct {
    __in u64 application_id;
  };


== /dev/nverpt-ctrl ==
== /dev/nverpt-ctrl ==
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=== NVGPU_AS_IOCTL_FREE_SPACE ===
=== NVGPU_AS_IOCTL_FREE_SPACE ===
This one frees pages from the device address space.
   struct {
   struct {
     __in u64 offset;
     __in u64 offset;
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Returns [[#Errors|NotSupported]] on Open unless nn::settings::detail::GetDebugModeFlag is set.
Returns [[#Errors|NotSupported]] on Open unless nn::settings::detail::GetDebugModeFlag is set.


{| class="wikitable" border="1"
This device is identical to [[#/dev/nvhost-dbg-gpu|/dev/nvhost-dbg-gpu]].
! Value || Direction || Size || Description || Notes
|}


== /dev/nvhost-ctrl-gpu ==
== /dev/nvhost-ctrl-gpu ==
Retrieved from "https://switchbrew.org/wiki/NV_services"