dce_v8_0_bandwidth_update(9)

dce_v8_0_bandwidth_update</p>(9) 💅✨

okay so bestie, you've stumbled into the Kernel API Manual and honestly? slay. this one's a section 9 page for dce_v8_0_bandwidth_update, and it's giving "small function, big responsibility" energy. let's get into it 🫶

✨ NAME ✨

dce_v8_0_bandwidth_update — program display watermarks 🌊💖

🦋 SYNOPSIS 🦋

void dce_v8_0_bandwidth_update (struct amdgpu_device *adev );

no cap, that's the whole signature. void return, one argument, in and out. iconic minimalism.

🎀 ARGUMENTS 🎀

• adev — an amdgpu_device pointer 💫 (yes queen, that's the whole description, she's lowkey mysterious like that)

🔥 DESCRIPTION 🔥

so what does she actually do? she calculates and programs the display watermarks and the line buffer allocation (CIK). that's it, that's the vibe. math girlies rise 🧮👑

ngl, watermarks are one of those "you don't notice them until they're wrong" situations. this is the function that handles them for this hardware family.

🌈 SEE ALSO 🌈

• Kernel file ./drivers/gpu/drm/amd/amdgpu/dce_v8_0.c 📁
• dce_v8_0_page_flip(9)
• dce_v8_0_hpd_sense(9)
• dce_v8_0_hpd_set_polarity(9)
• dce_v8_0_hpd_init(9)
• dce_v8_0_hpd_fini(9)
• dce_v8_0_line_buffer_adjust(9)
• cik_get_number_of_dram_channels(9)
• dce_v8_0_dram_bandwidth(9)
• dce_v8_0_dram_bandwidth_for_display(9)
• dce_v8_0_data_return_bandwidth(9)
• dce_v8_0_dmif_request_bandwidth(9)
• dce_v8_0_available_bandwidth(9)
• dce_v8_0_average_bandwidth(9)
• dce_v8_0_latency_watermark(9)
• dce_v8_0_average_bandwidth_vs_dram_bandwidth_for_display(9)
• dce_v8_0_average_bandwidth_vs_available_bandwidth(9)
• dce_v8_0_check_latency_hiding(9)
• dce_v8_0_program_watermarks(9)
• dce_v8_0_pick_pll(9)

like, that's a whole friend group of bandwidth functions and she's the one who shows up and actually programs the watermarks. main character energy fr fr 💀💖

and that's the page, bestie 🎀 source is the ./drivers/gpu/drm/amd/amdgpu directory, dated October 2026 — go forth and hydrate, mwah 💜