dm_test_dmu...pported_asic(9)

💅 dm_test_dmu...pported_asic(9) — Kernel API Manual ✨

okay so bestie, welcome to the dm_test_dmu...pported_asic(9) page 💖 (yes the title's got that cute truncated energy, we love a mysterious abbrev, iykyk). This is a Kernel API Manual situation and honestly? It's giving niche-but-iconic.

---

🎀 NAME 🎀

dm_test_dmub_sw_init_unsupported_asic — the test that checks sw init returns 0 for an unsupported ASIC 👑

---

✨ SYNOPSIS ✨

void dm_test_dmub_sw_init_unsupported_asic (struct kunit *test );

---

🌸 ARGUMENTS 🌸

• test — the KUnit test context 🧚 like, that's it, that's the whole vibe

---

🦋 DESCRIPTION 🦋

so here's the tea: if you've got an IP version with no DMUB support, then dm_dmub_sw_init should return 0 before it even thinks about touching the firmware. No cap. It returns zero, it doesn't go poking at firmware, that's the entire assignment and it slays 💅

---

💜 SEE ALSO 💜

📁 Kernel file

./drivers/gpu/drm/amd/display/amdgpu_dm/tests/amdgpu_dm_dmub_test.c

🌈 the whole friend group (aka the other tests, all present and accounted for, periodt)

• dm_test_register_dmub_notify_callback_null_callback(9)
• dm_test_register_dmub_notify_callback_type_out_of_range(9)
• dm_test_register_dmub_notify_callback_valid(9)
• dm_test_register_dmub_notify_callback_offload_false(9)
• dm_test_dmub_aux_setconfig_callback_copies_and_completes(9)
• dm_test_dmub_aux_setconfig_callback_non_aux_no_complete(9)
• dm_test_dmub_aux_setconfig_callback_aux_with_null_dm_notify(9)
• dm_test_dmub_aux_setconfig_callback_set_config_reply(9)
• dm_test_dmub_aux_fused_io_callback_copies_reply_and_completes(9)
• dm_test_dmub_aux_fused_io_callback_max_ddc_line(9)
• dm_test_dmub_aux_fused_io_callback_null_args(9)
• dm_test_get_default_ips_mode_dcn35(9)
• dm_test_get_default_ips_mode_dcn351(9)
• dm_test_get_default_ips_mode_dcn36(9)
• dm_test_get_default_ips_mode_older_than_dcn35(9)
• dm_test_get_default_ips_mode_newer_default(9)
• dm_test_dmub_hw_init_no_dmub_srv(9)
• dm_test_dmub_hw_init_no_fb_info(9)
• dm_test_dmub_hw_init_no_firmware(9)
• dm_test_dmub_hw_init_success_fake_dmub(9)
• dm_test_dmub_hw_init_no_hw_support(9)
• dm_test_dmub_hw_init_bss_data(9)
• dm_test_dmub_hw_init_hw_init_fails(9)
• dm_test_dmub_hw_init_auto_load_timeout(9)
• dm_test_dmub_hw_init_apu_dpia_dcn35(9)
• dm_test_dmub_hw_init_sanity_checks_dcn31(9)
• dm_test_dmub_hw_init_sanity_checks_dcn314(9)
• dm_test_dmub_hw_init_dmcu_abm(9)
• dm_test_dmub_hw_resume_no_dmub_srv(9)
• dm_test_dmub_hw_resume_initialized_dmub(9)
• dm_test_dmub_hw_resume_full_init(9)
• dm_test_dmub_hw_resume_init_check_failed(9)
• dm_test_dmub_hw_resume_auto_load_timeout(9)
• dm_test_init_microcode_unsupported_asic(9)
• dm_test_dmub_get_vbios_bounding_box_default_null(9)
• dm_test_execute_dmub_cmd_null_dmub_srv(9)
• dm_test_process_dmub_aux_transfer_sync_engine_acquire(9)
• dm_test_process_dmub_aux_transfer_sync_protocol_error(9)
• dm_test_process_dmub_aux_transfer_sync_copies_data(9)
• dm_test_process_dmub_aux_transfer_sync_zero_length(9)
• dm_test_process_dmub_set_config_sync_unknown_error(9)
• dm_test_abort_fused_io_no_dmub_srv(9)

---

🫶 reminder bestie: every single one of these is written exactly as it appears, no renaming, no merging, no invented options. we keep the facts, we just make 'em cute ✨

---

omg and before you go — the source line is ./drivers/gpu/drm/amd/display/... and it's dated October 2026, so like, mark your calendar 💀🌸 mwah, go read the source file, it's lowkey iconic 🎀💖