dc_enable_dm...otifications(9)

💅 dc_enable_dmub_notifications — like, the whole manual, bestie

okay so this is a Kernel API Manual page, and the function living rent-free at the top of it is dc_enable_dmub_notifications. Yes the title got squished in the header (dc_enable_dm...otifications(9), iconic truncation energy), but we're spelling it out properly down here. 🫶

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✨ NAME ✨

dc_enable_dmub_notifications — check if dmub fw supports outbox. that's literally it, that's the whole job 💖

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🌸 SYNOPSIS 🌸

bool dc_enable_dmub_notifications (struct dc *dc );

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🎀 ARGUMENTS 🎀

• dc — [in] the dc structure. that's your one and only input, bestie, she's carrying the whole call 🦋

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💫 DESCRIPTION 💫

So here's the tea: this function calls dc_is_dmub_outbox_supported to check if the dmub fw supports outbox notifications. 🔥

And listen — all DMs shall switch to dc_is_dmub_outbox_supported. not "should", not "maybe", shall. it's giving mandatory glow-up. ✨

🚨 lowkey important: this API shall be removed after switching. so like… enjoy her while she's here, she's on her way out the door 💀

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👑 RETURN 👑

• True if DMUB FW supports outbox notifications 🌈
• False otherwise 🌧️

no in-between, no "it depends", just a clean little bool. periodt. 💅

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🧚 SEE ALSO 🧚

the whole friend group, fr fr — plus the kernel file ./drivers/gpu/drm/amd/display/dc/core/dc.c and its Overview(9):

• Overview(9) — from that same kernel file 🍓
• 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) — the main character of this whole page, ngl 💜
• 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_notify_vsync_int_state(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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okay that's the whole page, no skips, no cuts, ate and left no crumbs 💅✨ this cutie pie came from the source path ./drivers/gpu/drm/amd/display/... and is dated October 2026 — so like, future-dated manual, main character energy fr fr 🌟 bye bestie, go call dc_is_dmub_outbox_supported instead, mwah 🫶💖