STRUCT PVR_GPU_ID(9)

💅 struct pvr_gpu_id(9) — like, the whole kernel API manual page, bestie

okay so picture this: you're digging through the kernel API manual (that's the (9) vibe, iykyk) and you bump into this little struct. it's struct pvr_gpu_id, and it's literally just the hardware GPU ID info for a PowerVR device. nothing more, nothing less. she's compact, she's iconic, she's four u16s in a trench coat. 🫶

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✨ NAME ✨

struct pvr_gpu_id — the hardware GPU ID info for a PowerVR device. that's the whole gig. main character energy, zero filler. 👑

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🌸 SYNOPSIS 🌸

lowkey the entire struct is right here, no cap:

struct pvr_gpu_id {
    u16 b, v, n, c;
 };

four fields, all u16, all besties. that's it. that's the struct. 💖

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🎀 Members 🎀

okay bestie, let's meet the squad — one bullet each, and yes every single one matters:

• b — the Branch ID. 🌿
• v — the Version ID. ⭐
• n — the number of scalable units. that's how many she scales with, fr fr. 🔥
• c — the Config ID. 🎀

not me obsessing over how b, v, n, c spell out basically the entire BVNC situation. the way that's the whole point of this struct… 💀

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🦋 SEE ALSO 🦋

the extended universe, because this page does not exist in a vacuum, bestie. first up, the kernel file herself:

./drivers/gpu/drm/imagination/pvr_device.h

and now the full friend group — every single one, no skips:

• struct pvr_fw_version(9)
• struct pvr_device_data(9)
• struct pvr_device(9)
• struct pvr_file(9)
• PVR_HAS_FEATURE(9)
• PVR_FEATURE_VALUE(9)
• PVR_HAS_QUIRK(9)
• PVR_HAS_ENHANCEMENT(9)
• PVR_PACKED_BVNC(9)
• pvr_gpu_id_to_packed_bvnc(9)
• PVR_CR_FIELD_GET(9)
• pvr_cr_read32(9)
• pvr_cr_read64(9)
• pvr_cr_write32(9)
• pvr_cr_write64(9)
• pvr_cr_poll_reg32(9)
• pvr_cr_poll_reg64(9)
• pvr_round_up_to_cacheline_size(9)
• IOCTL validation helpers(9)
• pvr_ioctl_union_padding_check(9)
• PVR_STATIC_ASSERT_64BIT_ALIGNED(9)
• PVR_IOCTL_UNION_PADDING_CHECK(9)

like, go read them. they ate. 💅

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and that's the tea 🍓 — this page lives in ./drivers/gpu/drm/imagination and it's dated October 2026, so jot that down bestie, mwah 💜✨