dpu_rm_reserve_sspp(9)

💅 dpu_rm_reserve_sspp — ok so this is from the Kernel API Manual bestie

✨ NAME ✨

dpu_rm_reserve_sspp — literally reserves the SSPP you need for the CRTC you handed it 🎀

🌸 SYNOPSIS 🌸

struct dpu_hw_sspp * dpu_rm_reserve_sspp (struct dpu_rm *rm , struct
       dpu_global_state *global_state , struct drm_crtc *crtc , struct
       dpu_rm_sspp_requirements *reqs );

Okay so it's giving "returns a pointer to struct dpu_hw_sspp" energy — that's the whole vibe check of the return type. Four args, no cap. 💅

🦋 ARGUMENTS 🦋

• rm — the DPU Resource Manager handle. Your main character. Everything runs through her 👑
• global_state — the private global state. Lowkey the inside scoop the function needs 🫶
• crtc — the DRM CRTC handle. The thing you're reserving an SSPP for, iykyk ✨
• reqs — the SSPP required features. Like, what your SSPP has to actually be able to do 💖

🎀 SEE ALSO 🎀

Kernel file ./drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c — and the whole friend group:

• dpu_rm_init(9)
• _dpu_rm_get_lm_peer(9)
• _dpu_rm_check_lm_and_get_connected_blks(9)
• dpu_rm_release(9)
• dpu_rm_reserve(9)
• dpu_rm_release_all_sspp(9)
• dpu_rm_get_assigned_resources(9)
• dpu_rm_print_state(9)

ngl if you're reserving stuff you should probably also know how to release it 🫣 dpu_rm_release(9) and dpu_rm_release_all_sspp(9) are right there bestie, don't leave your resources hanging 💀

🌈 that's the whole page! shoutout to ./drivers/gpu/drm/msm/disp/dpu1 for hosting this iconic little function, dated October 2026 — bookmark it, screenshot it, send it to the group chat, periodt 💜⭐🧚