Nintendo Switch Brew

NV services: Difference between revisions

← Older editNewer edit →
Line 1,190: Line 1,190:
| 0x40080008 || 8 || NVHOST_IOCTL_CHANNEL_SET_CLK_RATE
| 0x40080008 || 8 || NVHOST_IOCTL_CHANNEL_SET_CLK_RATE
|-
|-
| 0xC0??0009 || Variable || NVHOST_IOCTL_CHANNEL_MAP_CMD_BUFFER
| 0xC0??0009 || Variable || [[#NVHOST_IOCTL_CHANNEL_MAP_CMD_BUFFER]]
|-
|-
| 0xC0??000A || Variable || NVHOST_IOCTL_CHANNEL_UNMAP_CMD_BUFFER
| 0xC0??000A || Variable || [[#NVHOST_IOCTL_CHANNEL_UNMAP_CMD_BUFFER]]
|-
|-
| 0x00000013 || 0 || NVHOST_IOCTL_CHANNEL_SET_TIMEOUT_EX
| 0x00000013 || 0 || NVHOST_IOCTL_CHANNEL_SET_TIMEOUT_EX
Line 1,202: Line 1,202:
| 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]]
Line 1,263: Line 1,263:
=== 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_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 padding;              // 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 padding;                      // ignored
  };
  struct {
    __in    u32 num_handles;          // number of nvmap handles to unmap
    __in    u32 padding;              // 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_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 {
   struct {
Line 1,376: Line 1,412:
     __in u32 num_entries;
     __in u32 num_entries;
     __in u32 flags;
     __in u32 flags;
     __in u32 unk0;           // 1 works
     __in u32 unk0;
     __in u32 unk1;
     __in u32 unk1;
     __in u32 unk2;
     __in u32 unk2;
Line 1,387: Line 1,423:
Submits a gpfifo object (async version). Exclusive to the Switch.
Submits a gpfifo object (async version). Exclusive to the Switch.


  struct fence {
    u32 syncpt_id;
    u32 syncpt_value;
  };
 
  struct gpfifo_entry {
    u64 entry;                              // gpu_iova | (unk_2bits << 40) | (size << 42) | (unk_flag << 63)
  };
 
   struct {
   struct {
     u64 __gpfifo;                     // in (pointer to gpfifo fence structs; ignored)
     __in    u64 gpfifo;                     // (ignored) pointer to gpfifo fence structs
     u32 __num_entries;               // in (number of fence objects being submitted)
     __in    u32 num_entries;                 // number of fence objects being submitted
     u32 __flags;                     // in
     __in    u32 flags;
     struct fence       __fence_out; // out (returned new fence object for others to wait on)
     __inout struct fence fence_out;         // returned new fence object for others to wait on
     struct gpfifo_entry __entries[]; // in (depends on __num_entries)
     __in    struct gpfifo_entry entries[];   // 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.
Allocates gpfifo entries with additional parameters and returns a fence. Exclusive to the Switch.
 
  struct fence {
    u32 syncpt_id;
    u32 syncpt_value;
  };
 
   struct {
   struct {
     u32 __num_entries;         // in
     __in    u32 num_entries;
     u32 __flags;               // in
     __in    u32 flags;
     u32 __unk0;               // in (1 works)
     __in    u32 unk0;
     struct fence __fence_out; // out
     __inout struct fence fence_out;         // returned new fence object for others to wait on
     u32 __unk1;               // in
     __in    u32 unk1;
     u32 __unk2;               // in
     __in    u32 unk2;
     u32 __unk3;               // in
     __in    u32 unk3;
   };
   };


Retrieved from "https://switchbrew.org/wiki/NV_services"