pvr_gpuid_decode_string(9)

💅 pvr_gpuid_decode_string(9) — like, the Kernel API Manual, bestie ✨

Okay so we're deep in the kernel docs today and honestly? This one's a little icon. It lives in the pvr_gpuid_decode_string(9) section of the Kernel API Manual, and it's here to decode a GPU ID out of a module input string. Periodt. 🎀

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🌸 NAME 🌸

pvr_gpuid_decode_string — decode the GPU ID from a module input string, no cap 🔥

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✨ SYNOPSIS ✨

VISIBLE_IF_KUNIT int pvr_gpuid_decode_string (const struct pvr_device
*pvr_dev , const char *param_bvnc , struct pvr_gpu_id *gpu_id );

That's the whole vibe check right there. VISIBLE_IF_KUNIT, returns an int, takes three args. Slay. 💜

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🦋 ARGUMENTS 🦋

• pvr_dev — the target PowerVR device you're working with. Your main character, basically.
• param_bvnc — the GPU ID (BVNC) module parameter. Yes bestie, BVNC, that's the string going in.
• gpu_id — the output, and it gets updated with the GPU ID. That's its whole job 🫶

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👑 DESCRIPTION 👑

So what does it actually do? It sets the b, v, n, c fields of struct pvr_dev.gpu_id. That's it, that's the tea ☕ — the four fields get filled in from that module input string, and the function hands back an int. Lowkey elegant, highkey essential. 💅

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🌈 SEE ALSO 🌈

Kernel file ./drivers/gpu/drm/imagination/pvr_device.c — go read it, iykyk 📖

Then the whole friend group of related calls, all linked up:

• pvr_device_reg_init(9)
• pvr_device_clk_init(9)
• pvr_device_process_active_queues(9)
• pvr_device_irq_init(9)
• pvr_device_irq_fini(9)
• pvr_build_firmware_filename(9)
• pvr_request_firmware(9)
• pvr_gpuid_decode_reg(9)
• enum pvr_gpu_support_level(9)
• pvr_load_gpu_id(9)
• pvr_set_dma_info(9)
• pvr_device_gpu_init(9)
• pvr_device_gpu_fini(9)
• pvr_device_init(9)
• pvr_device_fini(9)
• pvr_device_has_feature(9)

Like a whole squad of (9) pages, and honestly? Obsessed. 🧚

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ngl bestie, this one's short but it ate — decode the string, set the fields, move on. Iconic behavior only. 💖

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And that's a wrap, babe! This lil page comes to you from ./drivers/gpu/drm/imagination, dated October 2026, and it's filed under pvr_gpuid_decode_string(9). Go forth and decode responsibly, mwah 😭💅🌟