vcn_v1_0_ena...clock_gating(9)
π vcn_v1_0_ena...clock_gating(9) β bestie edition π
okay so real talk, this is a page out of the Kernel API Manual, section 9, and the star of the show is vcn_v1_0_enable_clock_gating fr fr. yes the title up top got truncated with ... because even manpage headers have a character limit and honestly? relatable. π
β¨ NAME β¨
vcn_v1_0_enable_clock_gating β literally just turns on VCN clock gating. that's the whole vibe. slay. π
π¦ SYNOPSIS π¦
void vcn_v1_0_enable_clock_gating (struct amdgpu_vcn_inst *vinst );
notice the return type? it's void. it returns nothing. it does not report back. it simply does and then leaves. main character energy, no notes. π
πΈ ARGUMENTS πΈ
vinstβ pointer to the VCN instance structure. that's yourstruct amdgpu_vcn_inst *, iykyk. hand it over and it knows which VCN block you're talking about. π«Ά
π§ DESCRIPTION π§
Enable clock gating for the VCN block. that's it, that's the description, and honestly it ate. β¨ clock gating = the block gets to chill and save power when it's not actively doing stuff. lowkey iconic.
ngl the original page is like, extremely brief here. no extra lore, no caveats listed, no return value to worry about. so we're not inventing any. facts stay facts, bestie. π
π SEE ALSO π
first up, the actual kernel file this lives in β go read the source, it's giving primary text:
Kernel file ./drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
and then the whole squad, in exactly this order, no cap:
vcn_v1_0_early_init(9)vcn_v1_0_sw_init(9)vcn_v1_0_sw_fini(9)vcn_v1_0_hw_init(9)vcn_v1_0_hw_fini(9)vcn_v1_0_suspend(9)vcn_v1_0_resume(9)vcn_v1_0_mc_resume_spg_mode(9)vcn_v1_0_disable_clock_gating(9)vcn_v1_0_start_spg_mode(9)vcn_v1_0_stop_spg_mode(9)vcn_v1_0_dec_ring_get_rptr(9)vcn_v1_0_dec_ring_get_wptr(9)vcn_v1_0_dec_ring_set_wptr(9)vcn_v1_0_dec_ring_insert_start(9)vcn_v1_0_dec_ring_insert_end(9)vcn_v1_0_dec_ring_emit_fence(9)vcn_v1_0_dec_ring_emit_ib(9)vcn_v1_0_enc_ring_get_rptr(9)vcn_v1_0_enc_ring_emit_fence(9)vcn_v1_0_enc_ring_emit_ib(9)
and yeah, vcn_v1_0_disable_clock_gating(9) is right there in the list β the on/off duo, we love a matched set. π
and that's the page!! this lil drop shipped from ./drivers/gpu/drm/amd/amdgpu and it's dated October 2026 β yes, the future, we're ahead of schedule πβ¨
go enable some clock gating bestie, u got this π«Άπ
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