dcn32_helpe...ys_for_subvp(9)

💖 NAME 💖

okay so this page is all about dcn32_helper_calculate_num_ways_for_subvp — the Kernel API Manual page, no cap. The header is out here looking like dcn32_helpe...ys_for_subvp(9) because it got truncated mid-glow-up, but the real function name is the full one. 💅

✨ SYNOPSIS ✨

uint32_t dcn32_helper_calculate_num_ways_for_subvp (struct dc *dc , struct dc_state *context );

🎀 ARGUMENTS 🎀

• dc — current dc state 🫶
• context — new dc state 🌸

🦋 DESCRIPTION 🦋

so what it does: it gets the total allocation required for the phantom viewport — the one calculated by DML — in bytes, and converts that into number of cache ways. that's the vibe, literally. ✨

💫 RETURN 💫

number of ways required for SubVP 👑

🌈 SEE ALSO 🌈

• Kernel file: ./drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource_helpers.c
• dcn32_determine_det_override(9)
• dcn32_can_support_mclk_switch_using_fw_based_vblank_stretch(9)
• disallow_subvp_in_active_plus_blank(9)
• dcn32_subvp_drr_admissable(9)
• dcn32_subvp_vblank_admissable(9)

that's the whole page bestie 🫶 source/version: ./drivers/gpu/drm/amd/display/... · date: October 2026 · footer title vibe: dcn32_helpe...ys_for_subvp(9) — mwah 💋