cik_cp_gfx_enable(9)

💅 cik_cp_gfx_enable — the kernel API manual, bestie edition 🎀

okay so this is a page from the Kernel API Manual — yes that one — and it's all about cik_cp_gfx_enable, which is genuinely the on/off switch for the gfx CP MEs. iconic behavior honestly. let's get into it ✨

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✨ NAME ✨

cik_cp_gfx_enable — enable/disable the gfx CP MEs 🫶

🌸 SYNOPSIS 🌸

void cik_cp_gfx_enable (struct radeon_device *rdev , bool enable );

like, that's the whole signature. short kings rise 🧚

🦋 ARGUMENTS 🦋

• rdev — a radeon_device pointer. it's giving "here's your GPU, go off" 💖
• enable — literally just enable or disable the MEs. that's the vibe check. true? slay. false? also valid 💅

🎀 DESCRIPTION 🎀

Halts or unhalts the gfx MEs.

no cap, that's it — it flips them between halted and un-halted. main character energy for a two-line description, but honestly? periodt. 🌈

👑 SEE ALSO 👑

• Kernel file ./drivers/gpu/drm/radeon/cik.c 📁
• cik_get_allowed_info_register(9), cik_get_xclk(9), cik_mm_rdoorbell(9), cik_mm_wdoorbell(9), cik_srbm_select(9), ci_mc_load_microcode(9), cik_init_microcode(9), cik_tiling_mode_table_init(9), cik_select_se_sh(9), cik_create_bitmask(9), cik_get_rb_disabled(9), cik_setup_rb(9), cik_gpu_init(9), cik_scratch_init(9), cik_ring_test(9), cik_hdp_flush_cp_ring_emit(9), cik_fence_gfx_ring_emit(9), cik_fence_compute_ring_emit(9), cik_semaphore_ring_emit(9), cik_copy_cpdma(9), cik_ring_ib_execute(9), cik_ib_test(9), cik_cp_gfx_load_microcode(9), cik_cp_gfx_start(9), cik_cp_gfx_fini(9), cik_cp_gfx_resume(9), cik_cp_compute_enable(9), cik_cp_compute_load_microcode(9), cik_cp_compute_start(9), cik_cp_compute_fini(9), cik_cp_compute_resume(9), cik_gpu_check_soft_reset(9), cik_gpu_soft_reset(9), cik_asic_reset(9), cik_gfx_is_lockup(9), cik_mc_program(9), cik_mc_init(9), cik_pcie_gart_tlb_flush(9), cik_pcie_gart_enable(9), cik_pcie_gart_disable(9), cik_pcie_gart_fini(9), cik_ib_parse(9), cik_vm_init(9), cik_vm_fini(9), cik_vm_decode_fault(9), cik_rlc_stop(9), cik_rlc_start(9), cik_rlc_resume(9), cik_enable_interrupts(9), cik_disable_interrupts(9), cik_disable_interrupt_state(9), cik_irq_init(9), cik_irq_set(9), cik_irq_ack(9), cik_irq_disable(9), cik_irq_suspend(9), cik_irq_fini(9), cik_get_ih_wptr(9), cik_irq_process(9), cik_startup(9), cik_resume(9), cik_suspend(9), cik_init(9), cik_fini(9), dce8_line_buffer_adjust(9), cik_get_number_of_dram_channels(9), dce8_dram_bandwidth(9), dce8_dram_bandwidth_for_display(9), dce8_data_return_bandwidth(9), dce8_dmif_request_bandwidth(9), dce8_available_bandwidth(9), dce8_average_bandwidth(9), dce8_latency_watermark(9), dce8_average_bandwidth_vs_dram_bandwidth_for_display(9), dce8_average_bandwidth_vs_available_bandwidth(9), dce8_check_latency_hiding(9), dce8_program_watermarks(9), dce8_bandwidth_update(9), cik_get_gpu_clock_counter(9)

like… that's a lot of friends. the whole cik.c friend group showed up and honestly we love a supportive cast 😭💜

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ngl bestie, this page is short but it's doing the most with what it has. read the SEE ALSO list if you wanna go down a rabbit hole — iykyk 🕳️🐇

okay and finally the sign-off 🫶: this one lives under ./drivers/gpu/drm/radeon, dated October 2026, and the page itself is cik_cp_gfx_enable(9) in the Kernel API Manual. slay, stay hydrated, and may your MEs always un-halt 💖✨🎀