xe_oa_timestamp_frequency(9)

✨ xe_oa_timestamp_frequency(9) ✨

Hey bestie 💖 welcome to the Kernel API Manual page for xe_oa_timestamp_frequency(9). This one is short, sweet, and lowkey important if you're poking at OA timestamp stuff.

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🌸 NAME 🌸

xe_oa_timestamp_frequency — return OA timestamp frequency 🎀

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✨ SYNOPSIS ✨

u32 xe_oa_timestamp_frequency (struct xe_gt *gt );

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🎀 ARGUMENTS 🎀

• gt — an xe_gt. That's the argument, bestie 🫶

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🦋 DESCRIPTION 🦋

Okay so the tea ☕: on most platforms, the OA timestamp frequency is literally the same as the CS timestamp frequency. No cap.

But on some platforms, the OA unit ignores the CTC_SHIFT, and those 2 timestamps differ. In those cases, this function returns the adjusted CS timestamp frequency to the user. Periodt 💅

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💜 SEE ALSO 💜

• Kernel file ./drivers/gpu/drm/xe/xe_oa.c
• xe_oa_unit_id(9)
• xe_oa_stream_open_ioctl(9)
• xe_oa_add_config_ioctl(9)
• xe_oa_remove_config_ioctl(9)
• xe_oa_register(9)
• xe_oa_init(9)

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Cute little sign-off: this page comes from ./drivers/gpu/drm/xe, dated October 2026, and it's the xe_oa_timestamp_frequency(9) manual page. Bye bestie, go read some kernel code 💖✨