ENUM KFD_IOCTL_SVM_ATTR_TYPE(9)

✨ enum kfd_ioctl_svm_attr_type(9) ✨

okay bestie, gather round because this is the manual page for enum kfd_ioctl_svm_attr_type — the kernel API enum that tells you what kind of SVM attribute you're dealing with. her full name is enum kfd_ioc...vm_attr_type(9) and yes it's a long name, we're not shortening it, periodt 💅

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🌸 NAME 🌸

enum kfd_ioctl_svm_attr_type — the SVM attribute types, aka the vibe check for every attribute you can set on your SVM memory 🦋

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✨ SYNOPSIS ✨

enum kfd_ioctl_svm_attr_type {
    KFD_IOCTL_SVM_ATTR_PREFERRED_LOC ,
    KFD_IOCTL_SVM_ATTR_PREFETCH_LOC ,
    KFD_IOCTL_SVM_ATTR_ACCESS ,
    KFD_IOCTL_SVM_ATTR_ACCESS_IN_PLACE ,
    KFD_IOCTL_SVM_ATTR_NO_ACCESS ,
    KFD_IOCTL_SVM_ATTR_SET_FLAGS ,
    KFD_IOCTL_SVM_ATTR_CLR_FLAGS ,
    KFD_IOCTL_SVM_ATTR_GRANULARITY

};

literally the entire roster 💖

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👑 CONSTANTS 👑

💜 KFD_IOCTL_SVM_ATTR_PREFERRED_LOC

the gpuid of the preferred location, 0 for system memory. that's it, that's the whole vibe 🫶

💜 KFD_IOCTL_SVM_ATTR_PREFETCH_LOC

the gpuid of the prefetch location, 0 for system memory. setting this triggers an immediate prefetch (migration) — so bestie, when you set this, the migration is happening like right now, no waiting, no thinking about it 😭🔥

💜 KFD_IOCTL_SVM_ATTR_ACCESS

no extra description in the original, she's just there being iconic 🙈

💜 KFD_IOCTL_SVM_ATTR_ACCESS_IN_PLACE

same situation — no extra description, just the constant living her truth ✨

💜 KFD_IOCTL_SVM_ATTR_NO_ACCESS

specify memory access for the gpuid given by the attribute value 💀

💜 KFD_IOCTL_SVM_ATTR_SET_FLAGS

bitmask of flags to set — see KFD_IOCTL_SVM_FLAG_... for the flag family 🌈

💜 KFD_IOCTL_SVM_ATTR_CLR_FLAGS

bitmask of flags to clear 🎀

💜 KFD_IOCTL_SVM_ATTR_GRANULARITY

migration granularity, and it's measured in log2 num pages — so yes, it's math, but make it cute 📐💖

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🦋 SEE ALSO 🦋

okay this section is a whole friend group, buckle up:

Kernel file ./include/uapi/linux/kfd_ioctl.h struct kfd_ioctl_criu_args(9), enum kfd_ioctl_svm_op(9), struct kfd_ioctl_svm_attribute(9), struct kfd_ioctl_svm_args(9), struct kfd_ioctl_set_xnack_mode_args(9), struct kfd_ioctl_runtime_enable_args(9), struct kfd_ioctl_dbg_trap_enable_args(9), struct kfd_ioctl_dbg_trap_send_runtime_event_args(9), struct kfd_ioctl_dbg_trap_set_exceptions_enabled_args(9), struct kfd_ioctl_dbg_trap_set_wave_launch_override_args(9), struct kfd_ioctl_dbg_trap_set_wave_launch_mode_args(9), struct kfd_ioctl_dbg_trap_suspend_queues_args(9), struct kfd_ioctl_dbg_trap_resume_queues_args(9), struct kfd_ioctl_dbg_trap_set_node_address_watch_args(9), struct kfd_ioctl_dbg_trap_clear_node_address_watch_args(9), struct kfd_ioctl_dbg_trap_set_flags_args(9), struct kfd_ioctl_dbg_trap_query_debug_event_args(9), struct kfd_ioctl_dbg_trap_query_exception_info_args(9), struct kfd_ioctl_dbg_trap_queue_snapshot_args(9), struct kfd_ioctl_dbg_trap_device_snapshot_args(9), struct kfd_ioctl_dbg_trap_args(9), struct kfd_ioctl_pmc_settings(9)

like I said — a whole friend group, and they all ate 💅🔥

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and that's the page bestie! this iconic little doc lives at ./include/uapi/linux, dated October 2026, and it's titled enum kfd_ioc...vm_attr_type(9) — mwah, no notes, slay 💖✨🎀