vcn_v4_0_5_...ume_dpg_mode(9)

💅 vcn_v4_0_5_mc_resume_dpg_mode — from the Kernel API Manual ✨

okay so bestie, buckle up, we're looking at vcn_v4_0_5_mc_resume_dpg_mode(9) and honestly it's kind of a baddie? it's the one that handles memory controller programming for dpg mode. she's specific, she's niche, she's everything 🎀

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🌸 NAME 🌸

vcn_v4_0_5_mc_resume_dpg_mode — memory controller programming for dpg mode

like literally that's her whole job and she does it flawlessly 💅

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✨ SYNOPSIS ✨

void vcn_v4_0_5_mc_resume_dpg_mode (struct amdgpu_vcn_inst *vinst , bool
indirect );

no seriously that's it, that's the whole signature, she's not complicated 🫶

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🎀 ARGUMENTS 🎀

• vinst — the VCN instance, aka the girl she's working on 💖
• indirect — do you wanna indirectly write sram? that's the vibe check right there ✨

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🦋 DESCRIPTION 🦋

the whole point of this function is to let the VCN memory controller know its offsets while it's in dpg mode. that's it. that's the tea ☕ she walks in, tells the memory controller where everything's at, and dips. main character energy fr fr 👑

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🌈 SEE ALSO 🌈

the whole friend group 🫶 she does not show up alone, she brings the entire squad:

• Kernel file ./drivers/gpu/drm/amd/amdgpu/vcn_v4_0_5.c
• vcn_v4_0_5_early_init(9), vcn_v4_0_5_sw_init(9), vcn_v4_0_5_sw_fini(9)
• vcn_v4_0_5_hw_init(9), vcn_v4_0_5_hw_fini(9), vcn_v4_0_5_suspend(9)
• vcn_v4_0_5_resume(9), vcn_v4_0_5_mc_resume(9)
• vcn_v4_0_5_disable_static_power_gating(9), vcn_v4_0_5_enable_static_power_gating(9)
• vcn_v4_0_5_disable_clock_gating(9), vcn_v4_0_5_disable_clock_gating_dpg_mode(9)
• vcn_v4_0_5_enable_clock_gating(9), vcn_v4_0_5_start_dpg_mode(9)
• vcn_v4_0_5_start(9), vcn_v4_0_5_stop_dpg_mode(9), vcn_v4_0_5_stop(9)
• vcn_v4_0_5_pause_dpg_mode(9), vcn_v4_0_5_unified_ring_get_rptr(9)
• vcn_v4_0_5_unified_ring_get_wptr(9), vcn_v4_0_5_unified_ring_set_wptr(9)
• vcn_v4_0_5_set_unified_ring_funcs(9), vcn_v4_0_5_is_idle(9)
• vcn_v4_0_5_wait_for_idle(9), vcn_v4_0_5_set_clockgating_state(9)
• vcn_v4_0_5_process_interrupt(9), vcn_v4_0_5_set_irq_funcs(9)

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ok and one last lil thing: this page lives in ./drivers/gpu/drm/amd/amdgpu and it's dated October 2026 — so yeah, she's from the future, we stan a forward-thinking icon 🔥💜

later bestie, go read your kernel source 💖🧚