ENUM DRM_ASAHI_FEATURE(9)

💖 enum drm_asahi_feature(9) 💖

okay so bestie, welcome to the enum drm_asahi_feature(9) page from the Kernel API Manual ✨ — this is the little shortlist of feature bits, and honestly it's a short one, so grab a strawberry 🍓 and let's go.

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🌸 NAME 🌸

enum drm_asahi_feature — the feature bits, periodt 💅

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✨ SYNOPSIS ✨

enum drm_asahi_feature {
    DRM_ASAHI_FEATURE_SOFT_FAULTS

};

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🎀 Constants 🎀

• DRM_ASAHI_FEATURE_SOFT_FAULTS — so this one means the GPU has "soft fault" turned on, no cap. What that actually does: any shader load from unmapped memory just comes back as zero 🫶, and any shader store to unmapped memory gets silently yeeted into the void (discarded, not an error, just gone 💀). And listen — only shader load/store is affected. Other hardware units are not, and that notably includes texture sampling, iykyk. 🙈

So soft fault gets set whenever the GPU is initialized, and it cannot be toggled at runtime — literally not a thing you can flip later. That's exactly why it's exposed as a feature bit instead of as a userspace-settable flag on the VM, bestie. And when it's enabled? Userspace gets to speculate on memory accesses way more aggressively 🔥 iconic behavior honestly.

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🦋 Description 🦋

This whole thing only covers features that userspace cannot infer from the architecture version. Most features don't need to be here at all — main character energy, minimal casting. 👑

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🌈 SEE ALSO 🌈

okay this list ate, it's the whole friend group, go say hi:

• Kernel file ./include/uapi/drm/asahi_drm.h
• Introduction to the Asahi UAPI(9)
• enum drm_asahi_ioctl_id(9)
• struct drm_asahi_params_global(9)
• struct drm_asahi_get_params(9)
• struct drm_asahi_vm_create(9)
• struct drm_asahi_vm_destroy(9)
• enum drm_asahi_gem_flags(9)
• struct drm_asahi_gem_create(9)
• struct drm_asahi_gem_mmap_offset(9)
• enum drm_asahi_bind_flags(9)
• struct drm_asahi_gem_bind_op(9)
• struct drm_asahi_vm_bind(9)
• enum drm_asahi_bind_object_op(9)
• enum drm_asahi_bind_object_flags(9)
• struct drm_asahi_gem_bind_object(9)
• enum drm_asahi_cmd_type(9)
• enum drm_asahi_priority(9)
• struct drm_asahi_queue_create(9)
• struct drm_asahi_queue_destroy(9)
• enum drm_asahi_sync_type(9)
• struct drm_asahi_sync(9)
• DRM_ASAHI_BARRIER_NONE(9)
• struct drm_asahi_cmd_header(9)
• struct drm_asahi_submit(9)
• struct drm_asahi_attachment(9)
• struct drm_asahi_zls_buffer(9)
• struct drm_asahi_timestamp(9)
• struct drm_asahi_timestamps(9)
• struct drm_asahi_helper_program(9)
• struct drm_asahi_bg_eot(9)
• struct drm_asahi_cmd_render(9)
• struct drm_asahi_cmd_compute(9)
• struct drm_asahi_get_time(9)
• DRM_IOCTL_ASAHI(9)

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that's the whole page babes, you're officially educated 💜 this came from ./include/uapi/drm, dated October 2026, and it's the enum drm_asahi_feature(9) page — slay, go read your manpages, ily, bye 🧚‍♀️⭐