dc_notify_vsync_int_state(9)

💅 dc_notify_vsync_int_state(9) — the Kernel API Manual glow-up ✨

okay so bestie, this one lives in the Kernel API Manual (section 9, iykyk) and it's lowkey a tiny little messenger function. her whole job? telling everyone when vsync gets switched on or off. that's it. that's the vibe. 🎀

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✨ NAME ✨

dc_notify_vsync_int_state — literally just notifies the vsync enable/disable state 🦋

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🌸 SYNOPSIS 🌸

void dc_notify_vsync_int_state (struct dc *dc , struct dc_stream_state
*stream , bool enable );

three arguments, no return value, void and unbothered. periodt. 💅

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🫶 ARGUMENTS 🫶

• dc — the dc structure itself. the main character, fr fr. 👑
• stream — the stream where the vsync int state changed, aka the one going through it rn. 🌈
• enable — a bool, bestie: is vsync enabled or disabled? that's the whole question. 💖

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🔥 DESCRIPTION 🔥

so this gets called when vsync is enabled or disabled. her moment to shine ✨ — she will notify DMUB to start or stop ABM interrupts once steady state is reached. like, not before. steady state first, then the notifying. no cap. 🧚

ngl the whole thing is one notification and she ate. 💀

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⭐ SEE ALSO ⭐

the whole friend group showed up, and yes we're listing every single one of them because nobody gets left out 🫶:

• Kernel file ./drivers/gpu/drm/amd/display/dc/core/dc.c Overview(9)
• dc_stream_get_last_used_drr_vtotal(9)
• dc_stream_configure_crc(9)
• dc_stream_get_crc(9)
• dc_stream_adjust_vmin_vmax(9)
• dc_commit_state_no_check(9)
• dc_commit_streams(9)
• dc_check_state_update(9)
• dc_check_update_surfaces_for_stream(9)
• update_seamless_boot_flags(9)
• update_planes_and_stream_state(9)
• dc_check_address_only_update(9)
• build_dmub_cmd_list(9)
• could_mpcc_tree_change_for_active_pipes(9)
• commit_minimal_transition_state_in_dc_update(9)
• commit_minimal_transition_state(9)
• dc_update_state(9)
• dc_update_planes_and_stream(9)
• dc_enable_dcmode_clk_limit(9)
• dc_is_dmub_outbox_supported(9)
• dc_enable_dmub_notifications(9)
• dc_enable_dmub_outbox(9)
• dc_process_dmub_aux_transfer_async(9)
• dc_process_dmub_set_config_async(9)
• dc_process_dmub_set_mst_slots(9)
• dc_process_dmub_dpia_set_tps_notification(9)
• dc_process_dmub_dpia_hpd_int_enable(9)
• dc_print_dmub_diagnostic_data(9)
• dc_disable_accelerated_mode(9)
• dc_set_edp_power(9)
• dc_get_power_profile_for_dc_state(9)
• dc_get_det_buffer_size_from_state(9)
• dc_get_host_router_index(9)
• should_commit_intermediate_context(9)
• dc_update_probes_prepare(9)
• dc_update_probes_execute(9)

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and that's the whole page, bestie 🎀💜 this cutie came from ./drivers/gpu/drm/amd/display/... and she's stamped October 2026 — go off, calendar icon. 🗓️✨