STRUCT XE_GT_SRIOV_SPARE_CONFIG(9)

💅 NAME 💅

struct xe_gt_sriov_spare_config — the GT-level PF spare configuration data, bestie. It's a struct. It holds numbers. It's lowkey iconic for it.

So like, if you're wondering what manual you just opened — welcome to the Kernel API Manual, babes, we're in the GPU driver docs now 🎀

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✨ SYNOPSIS ✨

struct xe_gt_sriov_spare_config {
    u64 ggtt_size;
    u64 lmem_size;
    u16 num_ctxs;
    u16 num_dbs;
 };

Look at her. Four members. Not one of them extra. Main character energy fr 💖

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🫶 Members 🫶

• ggtt_size — the GGTT size. That's it, that's the member. u64 of pure GGTT realness ✨
• lmem_size — the LMEM size. Also a u64. Also slaying 💜
• num_ctxs — the number of GuC submission contexts. u16 because apparently that's all the room it needs, and honestly? Respect 🌸
• num_dbs — the number of GuC doorbells. u16 again. Ring ring, it's for you 🔔

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🦋 Description 🦋

Okay so here's the vibe: the PF driver uses this struct to keep track of its own reserved (spare) provisioning data — like, the stuff that's specifically not applicable to be tracked in struct xe_gt_sriov_config. Different struct, different job, iykyk 💅

So don't go cramming your spare provisioning data into the wrong struct, bestie, that's not the move. This one is the spare-config struct. That one over there is the regular config struct. They are not the same and we do not mix them ✨

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🔥 SEE ALSO 🔥

• Kernel file ./drivers/gpu/drm/xe/xe_gt_sriov_pf_config_types.h — go read the source, it's giving lore 👑
• struct xe_gt_sriov_config(9) — the other struct. The one that does not hold the spare provisioning data. Say hi to her for me 🫶

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ngl bestie, if you got this far you're already smarter than half the group chat 💀 go read the header file, it's literally right there 🌈

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Okay that's the whole page!! 🌟 Signed, sealed, delivered from ./drivers/gpu/drm/xe, datestamped October 2026, and yes she's still called struct xe_gt_sriov_spare_config — periodt 💖🎀🦋