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→Channel Ioctls
| 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]]
| 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]]
| 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]]
|}
|}
__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
};
};
struct {
struct {
__in u32 dmabuf_fd; // nvmap handle
__in u32 dmabuf_fd; // nvmap handle
};
};
__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
};
};
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 ===
Gets user specific data.
struct {
__out u64 data;
};
};