pvr_gpu_id_to_packed_bvnc(9)

💅 pvr_gpu_id_to_packed_bvnc — like, the one from the Kernel API Manual, bestie

okay so this is pvr_gpu_id_to_packed_bvnc(9) and honestly? it does exactly one (1) thing and it does it slayfully. it squishes your B, V, N and C values into a single 64-bit unsigned integer. that's it. that's the whole function. icon behavior tbh 🎀

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✨ NAME ✨

pvr_gpu_id_to_packed_bvnc — packs the B, V, N and C values into a 64-bit unsigned integer 🫶

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🌸 SYNOPSIS 🌸

u64 pvr_gpu_id_to_packed_bvnc (const struct pvr_gpu_id *gpu_id );

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🦋 ARGUMENTS 🦋

• gpu_id — the GPU ID, babes. that's the whole argument. no notes. 💜

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🔥 DESCRIPTION 🔥

so the packed layout is giving very organized, very structured, very "i have a spreadsheet" energy. here's the vibe check 👑

┌──────────────────────────────────────┐
│     63..48   47..32   31..16   15..0 │
└──────────────────────────────────────┘
+========+========+========+=======+
| B      | V      | N      | C     |

so if you read the columns left to right, B lives in bits 63..48, V is chillin in 47..32, N takes 31..16, and C gets the cozy little 15..0 spot at the end. not a single bit wasted, we love a tight fit fr fr ✨

and here's the actual main character moment of the page: use this instead of PVR_PACKED_BVNC whenever you've got a struct pvr_gpu_id on hand, because that way you get proper type checking. it's literally the whole reason this function exists. type safety is self care 💅

bestie pls — if you've already got the struct, don't go raw-dogging the macro. let the compiler have your back. 🫶

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⭐ RETURN ⭐

the packed BVNC, obviously. one (1) u64, no crumbs. 🍓

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🌈 SEE ALSO 🌈

go read the kernel file ./drivers/gpu/drm/imagination/pvr_device.h, and then spiral into these:

• struct pvr_gpu_id(9)
• 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_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)

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that's the whole page, no cap. go pack some BVNC and stay type-safe out there 💖

okay bye bestie, this came from ./drivers/gpu/drm/imagination and it's dated October 2026, page pvr_gpu_id_to_packed_bvnc(9), mwah 😘 🧚