vcn_v5_0_0_u...ing_get_rptr(9)
β¨ vcn_v5_0_0_unified_ring_get_rptr(9) β¨
okay bestie so this is a page from the Kernel API Manual and it's honestly SO specific and I love that for it π we're talking about one (1) tiny little function that reads a pointer, and she's out here with a whole manpage. icon behavior.
πΈ NAME πΈ
vcn_v5_0_0_unified_ring_get_rptr β get unified read pointer π
like⦠that's it. that's her job. she gets the rptr. no cap.
π¦ SYNOPSIS π¦
uint64_t vcn_v5_0_0_unified_ring_get_rptr (struct amdgpu_ring *ring );
so you call her with a struct amdgpu_ring * and she hands you back a uint64_t. literally the whole signature, yes, she's that simple, and honestly? refreshing. other functions could never π
π ARGUMENTS π
ringβ anamdgpu_ringpointer π«Ά that's the one and only thing you gotta give her. just point her at the ring and let her cook.
β DESCRIPTION β
okay so the entire description is: Returns the current hardware unified read pointer β¨
that's the vibe check and she passed. she goes and gets the current hardware unified read pointer. no extra drama, no hidden side quests mentioned here, none of that. just the read pointer, fresh from the hardware, delivered to you as a uint64_t. ate and left no crumbs π
π SEE ALSO π
bestie she has a WHOLE friend group, look at this roster, it's giving main character energy with a full ensemble cast π (and also, the source lives at ./drivers/gpu/drm/amd/amdgpu/vcn_v5_0_0.c, iykyk):
vcn_v5_0_0_early_init(9)vcn_v5_0_0_sw_init(9)vcn_v5_0_0_sw_fini(9)vcn_v5_0_0_hw_init(9)vcn_v5_0_0_hw_fini(9)vcn_v5_0_0_suspend(9)vcn_v5_0_0_resume(9)vcn_v5_0_0_mc_resume(9)vcn_v5_0_0_mc_resume_dpg_mode(9)vcn_v5_0_0_disable_static_power_gating(9)vcn_v5_0_0_enable_static_power_gating(9)vcn_v5_0_0_disable_clock_gating(9)vcn_v5_0_0_disable_clock_gating_dpg_mode(9)vcn_v5_0_0_enable_clock_gating(9)vcn_v5_0_0_start_dpg_mode(9)vcn_v5_0_0_set_mmhub_eco_sec_level(9)vcn_v5_0_0_start(9)vcn_v5_0_0_stop_dpg_mode(9)vcn_v5_0_0_stop(9)vcn_v5_0_0_pause_dpg_mode(9)vcn_v5_0_0_unified_ring_get_wptr(9)vcn_v5_0_0_unified_ring_set_wptr(9)vcn_v5_0_0_set_unified_ring_funcs(9)vcn_v5_0_0_is_idle(9)vcn_v5_0_0_wait_for_idle(9)vcn_v5_0_0_set_clockgating_state(9)vcn_v5_0_0_process_interrupt(9)vcn_v5_0_0_set_irq_funcs(9)
like, she knows everybody. she's connected. π
lowkey a note for the girlies: the wptr twins are right there in the list if you need the write side, and vcn_v5_0_0_set_unified_ring_funcs(9) is literally the one who puts her in the function table, so go say hi π§
mwah π that's the whole page! this little legend comes from ./drivers/gpu/drm/amd/amdgpu, dated October 2026, and she's filed under vcn_v5_0_0_u...ing_get_rptr(9) β yeah the title got a lil truncated in the header, she's mysterious like that π go read the source, love u, bye ππ
π¦ where this page comes from
- nixpkgs unstable: linux-manual 7.3.1
- π girlified by deepseek-ai/DeepSeek-V4.1-Flash-1017 on : a language model's rewrite of the original, under its terms