drm_panthor_timestamp_info Struct Reference

#include <panthor_drm.h>

Public Attributes
__u64	timestamp_frequency
__u64	current_timestamp
__u64	timestamp_offset
__u32	flags
__u32	duration_nsec
__u64	cycle_count
__u64	cpu_timestamp_sec
__u64	cpu_timestamp_nsec

Detailed Description

struct drm_panthor_timestamp_info - Timestamp information

Structure grouping all queryable information relating to the GPU timestamp.

Member Data Documentation

cpu_timestamp_nsec

__u64 drm_panthor_timestamp_info::cpu_timestamp_nsec

@cpu_timestamp_nsec: Nanseconds part of CPU timestamp.

cpu_timestamp_sec

__u64 drm_panthor_timestamp_info::cpu_timestamp_sec

@cpu_timestamp_sec: Seconds part of CPU timestamp.

current_timestamp

__u64 drm_panthor_timestamp_info::current_timestamp

@current_timestamp: The current GPU timestamp.

cycle_count

__u64 drm_panthor_timestamp_info::cycle_count

@cycle_count: Value of GPU_CYCLE_COUNT.

duration_nsec

__u32 drm_panthor_timestamp_info::duration_nsec

@duration_nsec: Duration of time query.

flags

__u32 drm_panthor_timestamp_info::flags

@flags: Bitmask of drm_panthor_timestamp_info_flags.

If set to 0, then it is interpreted as: DRM_PANTHOR_TIMESTAMP_GPU | DRM_PANTHOR_TIMESTAMP_GPU_OFFSET | DRM_PANTHOR_TIMESTAMP_FREQ

Note: these flags are exclusive to each other (only one can be used):

• DRM_PANTHOR_TIMESTAMP_CPU_NONE
• DRM_PANTHOR_TIMESTAMP_CPU_MONOTONIC
• DRM_PANTHOR_TIMESTAMP_CPU_MONOTONIC_RAW

timestamp_frequency

__u64 drm_panthor_timestamp_info::timestamp_frequency

@timestamp_frequency: The frequency of the timestamp timer or 0 if unknown.

timestamp_offset

__u64 drm_panthor_timestamp_info::timestamp_offset

@timestamp_offset: The offset of the GPU timestamp timer.

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The documentation for this struct was generated from the following file:

• XenevaOS/BaseHdr/uapi/drm/panthor_drm.h