STRUCT XE_VALIDATION_CTX(9)

💅 struct xe_validation_ctx(9)

okay so bestie, welcome to the Kernel API Manual — yes we're reading kernel docs together, that's the vibe now 🫶

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✨ NAME ✨

struct xe_validation_ctx — a struct that's a drm_exec subclass, and it comes with support for exhaustive eviction. literally what it says on the tin, no cap 💖

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🦋 SYNOPSIS 🦋

struct xe_validation_ctx {
    struct drm_exec *exec;
    struct xe_validation_device *val;
    struct xe_val_flags val_flags;
    bool lock_held;
    bool lock_held_exclusive;
    bool request_exclusive;
    u32 exec_flags;
    unsigned int nr;
 };

like... look at her. main character struct energy fr fr 👑

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🎀 Members 🎀

okay let's go member by member, don't skip, we do NOT skip here:

• exec — the drm_exec object base class, iconic. and nota bene bestie: we use a pointer instead of embedding it, specifically to avoid diamond inheritance. yes that's a real problem, yes the pointer is the slay 💅
• val — the exhaustive eviction domain. that's her whole thing 🌸
• val_flags — a copy of the struct xe_val_flags that got passed to xe_validation_ctx_init. a lil keepsake 🎀
• lock_held — whether the domain lock is currently held. true/false, she's either locked or she's not 💀
• lock_held_exclusive — whether the domain lock is held in exclusive mode. fancy mode, exclusive mode ✨
• request_exclusive — whether to lock exclusively (that's write mode, iykyk) the next time the domain lock gets locked. manifesting exclusive energy 🔥
• exec_flags — the drm_exec flags used for drm_exec (re-)initialization. yes, the re-initialization ones too 😭
• nr — the drm_exec nr parameter, used for drm_exec (re-)initialization. she's a pair with exec_flags, they're besties 🫶

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/gpu/drm/xe/xe_validation.h — go read it, it's giving source of truth 👑

and also these icons:

• xe_validation_lockdep(9)
• struct xe_validation_device(9)
• struct xe_val_flags(9)
• xe_validation_retry_on_oom(9)
• xe_validation_device_init(9)
• xe_validation_guard(9)

like a whole friend group honestly 💜

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🧚 that's the whole page bestie, no crumbs left behind, every member accounted for, periodt 💅

starring ./drivers/gpu/drm/xe, brought to you by October 2026 and the one and only struct xe_validation_ctx(9) — mwah, go touch some kernel code 🍓💖