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→Channel Ioctls
| 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
| 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]]
=== 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.
struct {
struct {
__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;
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;
};
};