dce_v6_0_latency_watermark(9)
β¨ dce_v6_0_latency_watermark(9) β¨
okay bestie so we're in the Kernel API Manual, section 9, and today's main character is dce_v6_0_latency_watermark π
don't worry, it's way less scary than the name looks, i promise π«Ά
πΈ NAME πΈ
dce_v6_0_latency_watermark β get the latency watermark β
like, that's literally the whole job. it gets the latency watermark. slay.
π SYNOPSIS π
u32 dce_v6_0_latency_watermark (struct dce6_wm_params *wm );
so you hand it your watermark params and it hands you back a u32. transactional. iconic. β¨
π¦ ARGUMENTS π¦
wmβ the watermark calculation data π this is the lil struct that carries everything the function needs to do its math. it's the vibe check input, yk?
π DESCRIPTION π
okay so here's the tea π΅ β this function calculates the latency watermark (CIK). that's it, that's the whole plot.
it's used for display watermark bandwidth calculations, so basically it's one piece of the bigger bandwidth-math puzzle π§©
and the return value? the latency watermark in ns (nanoseconds, bestie, we're talking tiny tiny time) β±οΈβ¨
ngl the description is short but that's genuinely everything the page says β no cap, no extra lore π
π SEE ALSO π
if you wanna go down the rabbit hole (and honestly? obsessed), the kernel file lives here:
./drivers/gpu/drm/amd/amdgpu/dce_v6_0.c
and here's the whole friend group πβ¨:
dce_v6_0_page_flip(9)dce_v6_0_hpd_sense(9)dce_v6_0_hpd_set_polarity(9)dce_v6_0_hpd_init(9)dce_v6_0_hpd_fini(9)si_get_number_of_dram_channels(9)dce_v6_0_dram_bandwidth(9)dce_v6_0_dram_bandwidth_for_display(9)dce_v6_0_data_return_bandwidth(9)dce_v6_0_dmif_request_bandwidth(9)dce_v6_0_available_bandwidth(9)dce_v6_0_average_bandwidth(9)dce_v6_0_average_bandwidth_vs_dram_bandwidth_for_display(9)dce_v6_0_average_bandwidth_vs_available_bandwidth(9)dce_v6_0_check_latency_hiding(9)dce_v6_0_program_watermarks(9)dce_v6_0_line_buffer_adjust(9)dce_v6_0_bandwidth_update(9)dce_v6_0_pick_pll(9)
mwah π that's the page!! sourced straight from ./drivers/gpu/drm/amd/amdgpu, dated October 2026, in classic manual-section-9 fashion β periodt πβ¨
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