include/uapi/linux/kfd_ioctl.h

Source file repositories/reference/linux-study-clean/include/uapi/linux/kfd_ioctl.h

File Facts

System
Linux kernel
Corpus path
include/uapi/linux/kfd_ioctl.h
Extension
.h
Size
59959 bytes
Lines
1722
Domain
Core OS
Bucket
Core Kernel Interface
Inferred role
Core OS: implementation source
Status
source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

Dependency Surface

Detected Declarations

Annotated Snippet

struct kfd_ioctl_get_version_args {
	__u32 major_version;	/* from KFD */
	__u32 minor_version;	/* from KFD */
};

/* For kfd_ioctl_create_queue_args.queue_type. */
#define KFD_IOC_QUEUE_TYPE_COMPUTE		0x0
#define KFD_IOC_QUEUE_TYPE_SDMA			0x1
#define KFD_IOC_QUEUE_TYPE_COMPUTE_AQL		0x2
#define KFD_IOC_QUEUE_TYPE_SDMA_XGMI		0x3
#define KFD_IOC_QUEUE_TYPE_SDMA_BY_ENG_ID	0x4

#define KFD_MAX_QUEUE_PERCENTAGE	100
#define KFD_MAX_QUEUE_PRIORITY		15

#define KFD_MIN_QUEUE_RING_SIZE		1024

struct kfd_ioctl_create_queue_args {
	__u64 ring_base_address;	/* to KFD */
	__u64 write_pointer_address;	/* to KFD */
	__u64 read_pointer_address;	/* to KFD */
	__u64 doorbell_offset;	/* from KFD */

	__u32 ring_size;		/* to KFD */
	__u32 gpu_id;		/* to KFD */
	__u32 queue_type;		/* to KFD */
	__u32 queue_percentage;	/* to KFD */
	__u32 queue_priority;	/* to KFD */
	__u32 queue_id;		/* from KFD */

	__u64 eop_buffer_address;	/* to KFD */
	__u64 eop_buffer_size;	/* to KFD */
	__u64 ctx_save_restore_address; /* to KFD */
	__u32 ctx_save_restore_size;	/* to KFD */
	__u32 ctl_stack_size;		/* to KFD */
	__u32 sdma_engine_id;		/* to KFD */
	__u32 metadata_ring_size;	/* to KFD */
};

struct kfd_ioctl_destroy_queue_args {
	__u32 queue_id;		/* to KFD */
	__u32 pad;
};

struct kfd_ioctl_update_queue_args {
	__u64 ring_base_address;	/* to KFD */

	__u32 queue_id;		/* to KFD */
	__u32 ring_size;		/* to KFD */
	__u32 queue_percentage;	/* to KFD */
	__u32 queue_priority;	/* to KFD */
};

struct kfd_ioctl_set_cu_mask_args {
	__u32 queue_id;		/* to KFD */
	__u32 num_cu_mask;		/* to KFD */
	__u64 cu_mask_ptr;		/* to KFD */
};

struct kfd_ioctl_get_queue_wave_state_args {
	__u64 ctl_stack_address;	/* to KFD */
	__u32 ctl_stack_used_size;	/* from KFD */
	__u32 save_area_used_size;	/* from KFD */
	__u32 queue_id;			/* to KFD */
	__u32 pad;
};

struct kfd_ioctl_get_available_memory_args {
	__u64 available;	/* from KFD */
	__u32 gpu_id;		/* to KFD */
	__u32 pad;
};

struct kfd_dbg_device_info_entry {
	__u64 exception_status;
	__u64 lds_base;
	__u64 lds_limit;
	__u64 scratch_base;
	__u64 scratch_limit;
	__u64 gpuvm_base;
	__u64 gpuvm_limit;
	__u32 gpu_id;
	__u32 location_id;
	__u32 vendor_id;
	__u32 device_id;
	__u32 revision_id;
	__u32 subsystem_vendor_id;
	__u32 subsystem_device_id;
	__u32 fw_version;
	__u32 gfx_target_version;

Annotation

Implementation Notes