vmw_stdu_populate_update(9)

✨ vmw_stdu_populate_update ✨

okay so bestie, welcome to the vmw_stdu_populate_update(9) page — it's a Kernel API Manual moment and honestly it's giving "niche but iconic" 🎀 this little function is all about populating an UPDATE_GB_SCREENTARGET command with a bounding box, and the way that it does it is literally so specific. iykyk 💅

🌸 SYNOPSIS 🌸

void vmw_stdu_populate_update (void *cmd , int unit , s32 left , s32 right , s32 top , s32 bottom );

no cap, that's the whole signature — it returns void, so don't go looking for a return value, it's not coming 😭

💖 ARGUMENTS 💖

• cmd — Pointer to command stream. that's where the magic gets written, bestie ✨
• unit — Screen target unit. the specific screen target we're talking about 🦋
• left — Left side of bounding box. the leftmost edge, periodt 📍
• right — Right side of bounding box. the rightmost edge, slay 💅
• top — Top side of bounding box. the upper edge, highkey important 👑
• bottom — Bottom side of bounding box. the lower edge, lowkey essential 🌈

all six of these are required, no defaults, no shortcuts — you gotta pass every single one fr fr 🫶

👀 SEE ALSO 👀

the lore is deep, bestie — here's the whole friend group from the Kernel file ./drivers/gpu/drm/vmwgfx/vmwgfx_stdu.c:

• struct vmw_stdu_dirty(9)
• struct vmw_screen_target_display_unit(9)
• vmw_stdu_crtc_destroy(9)
• vmw_stdu_define_st(9)
• vmw_stdu_bind_st(9)
• vmw_stdu_update_st(9)
• vmw_stdu_destroy_st(9)
• vmw_stdu_crtc_mode_set_nofb(9)
• vmw_stdu_bo_cpu_clip(9)
• vmw_stdu_bo_cpu_commit(9)
• vmw_kms_stdu_readback(9)
• vmw_kms_stdu_surface_clip(9)
• vmw_kms_stdu_surface_fifo_commit(9)
• vmw_kms_stdu_surface_dirty(9)
• vmw_stdu_encoder_destroy(9)
• vmw_stdu_connector_destroy(9)
• vmw_stdu_primary_plane_cleanup_fb(9)
• vmw_stdu_primary_plane_prepare_fb(9)
• vmw_stdu_plane_update_bo(9)
• vmw_stdu_plane_update_surface(9)
• vmw_stdu_primary_plane_atomic_update(9)
• vmw_stdu_init(9)
• vmw_stdu_destroy(9)
• vmw_kms_stdu_init_display(9)

like i said — the whole squad is here, no one got left out 💜

lowkey reminder: everything above lives under ./drivers/gpu/drm/vmwgfx and this page is dated October 2026 — so yeah, it's a little time capsule moment 🕰️

okay that's the whole page, bestie — you ate this, no crumbs left 🍓💖 xoxo, your Unix bestie signing off with the source vibes from ./drivers/gpu/drm/vmwgfx and the October 2026 date, periodt ✨