jpeg_v5_0_1_start(9)

💅 jpeg_v5_0_1_start — a whole vibe check

okay so bestie, this is a page straight out of the Kernel API Manual 🎀 and it's all about one little function called jpeg_v5_0_1_start. Yes the name is a mouthful, no we are not changing it, it's iconic in its own way. Let's get into it ✨

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🌸 NAME

jpeg_v5_0_1_start — start JPEG block

Like, literally that's the whole job. It starts the JPEG block. Slay. 👑

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🦋 SYNOPSIS

int jpeg_v5_0_1_start (struct amdgpu_device *adev );

That's the whole signature, no cap. It takes one thing, it hands you back an int. 🫶

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💖 ARGUMENTS

• adev — an amdgpu_device pointer. That's it, that's the argument. One pointer, main character energy, doing all the work here. 🌈

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🌟 DESCRIPTION

Setup and start the JPEG block.

fr fr that's it. Setup — then start. The JPEG block goes from "existing" to "running" and honestly? We love a two-step glow-up. ✨🔥

lowkey the original page says exactly this much and not one word more, so I'm not gonna sit here and invent lore about it, iykyk 💀

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👑 SEE ALSO

The kernel file where all this magic lives:

• ./drivers/gpu/drm/amd/amdgpu/jpeg_v5_0_1.c

And the whole friend group of sibling functions — every single one of them, no skipping, we don't do that here 💜:

• jpeg_v5_0_1_early_init(9)
• jpeg_v5_0_1_sw_init(9)
• jpeg_v5_0_1_sw_fini(9)
• jpeg_v5_0_1_hw_init(9)
• jpeg_v5_0_1_hw_fini(9)
• jpeg_v5_0_1_suspend(9)
• jpeg_v5_0_1_resume(9)
• jpeg_v5_0_1_stop(9)
• jpeg_v5_0_1_dec_ring_get_rptr(9)
• jpeg_v5_0_1_dec_ring_get_wptr(9)
• jpeg_v5_0_1_dec_ring_set_wptr(9)

Like a full squad of (9) pages. Go read them, they're the supporting cast and they ate. 🍓

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mwah 💋 that's the whole page. shoutout to the source path ./drivers/gpu/drm/amd/amdgpu and the October 2026 date stamp — this one's stamped and sealed, periodt. 🧚💖