vmw_gb_surf...ne_ext_ioctl(9)

💅 NAME

Okay so bestie, gather round: this is vmw_gb_surface_define_ext_ioctl — the ioctl function that implements the user surface define functionality. That's it, that's the whole flex ✨ (and yes, we're living in the Kernel API Manual, welcome to the party 🎀)

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✨ SYNOPSIS

int vmw_gb_surface_define_ext_ioctl (struct drm_device *dev , void *data
, struct drm_file *file_priv );

Literal main character energy: int in, three args, no cap. 🫶

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🎀 ARGUMENTS

Let's do a vibe check on the three besties this function takes 💖

• dev — Pointer to a struct drm_device. Your whole GPU situation, basically.
• data — Pointer to data copied from / to user-space. It goes both ways, lowkey iconic.
• file_priv — Pointer to a drm file private structure. The private file tea ☕

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🦋 SEE ALSO

The whole group chat, fr fr — no one gets left on read 📖✨

So first the file itself: Kernel file ./drivers/gpu/drm/vmwgfx/vmwgfx_surface.c, plus struct vmw_user_surface(9), struct vmw_surface_offset(9), struct vmw_surface_dirty(9).

Then the sizing squad 🍓: vmw_surface_dma_size(9), vmw_surface_define_size(9), vmw_surface_destroy_size(9).

Then the encoding crew 🌸: vmw_surface_destroy_encode(9), vmw_surface_define_encode(9), vmw_surface_dma_encode(9), vmw_hw_surface_destroy(9).

Then the legacy legends 👑: vmw_legacy_srf_create(9), vmw_legacy_srf_dma(9), vmw_legacy_srf_bind(9), vmw_legacy_srf_unbind(9), vmw_legacy_srf_destroy(9).

Then the surface core 💜: vmw_surface_init(9), vmw_user_surface_base_to_res(9), vmw_user_surface_free(9), vmw_user_surface_base_release(9).

Then the ioctl icons 🌈: vmw_surface_destroy_ioctl(9), vmw_surface_define_ioctl(9), vmw_surface_reference_ioctl(9), vmw_gb_surface_create(9), vmw_gb_surface_define_ioctl(9), vmw_gb_surface_reference_ioctl(9), vmw_gb_surface_reference_ext_ioctl(9).

Then the internals, iykyk 🔥: vmw_gb_surface_define_internal(9), vmw_gb_surface_reference_internal(9).

And finally the dirty/dumb duo 😭: vmw_subres_dirty_add(9), vmw_subres_dirty_full(9), vmw_dumb_create(9).

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That's the whole page, bestie — every flag-free, option-free, argument-having detail accounted for. Nothing skipped, nothing invented, periodt 💅

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Signing off from ./drivers/gpu/drm/vmwgfx, dated October 2026, with the header energy of vmw_gb_surf...ne_ext_ioctl(9) — go be an icon and define those user surfaces 🦋💖✨