amdgpu_device_resume(9)

💖 amdgpu_device_resume — the kernel API glow-up page 💖

okay so bestie, this is a page from the Kernel API Manual, and it's literally all about waking your AMD GPU back up. we're talking amdgpu_device_resume(9) — yes that's the whole name, she's got main character energy and a long title, periodt. 🌸

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✨ NAME ✨

amdgpu_device_resume — initiate device resume 🫶

like, the actual "wake up babe, we're going back to work" function for your GPU. ngl it's kind of iconic.

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🦋 SYNOPSIS 🦋

int amdgpu_device_resume (struct drm_device *dev , bool notify_clients );

so you call it, you hand it a dev, you tell it whether or not to notify_clients, and it gives you back an int. that's the whole vibe check. 💅

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🎀 ARGUMENTS 🎀

• dev — the drm dev pointer. yeah, that one. your graphics device, your bestie, the whole reason we're here. 💜
• notify_clients — notify in-kernel DRM clients. so like, do we tell the in-kernel DRM clients what's up or not? that's the question. 🌈

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💅 DESCRIPTION 💅

Bring the hw back to operating state (all asics). 🔥

that's it, that's the assignment. "all asics" means literally every asic, no exceptions, no pick-me behavior. we're bringing the hardware back so it can operate again. slay.

Returns 0 for success or an error on failure. so if you get 0, we ate. if you get an error, well… it's giving "something went wrong", and you should probably look at that. 😭

Called at driver resume. so this is the one that gets summoned when the driver wakes up. she's the wake-up call. the alarm clock. the "bestie get up we're going to be late" of kernel functions. ⭐

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👑 SEE ALSO 👑

first off, the Kernel file lives at ./drivers/gpu/drm/amd/amdgpu/amdgpu_device.c — go read her, she's long but she's worth it. 🧚

and now, the full friend group, in the exact order they appear, no cap, don't skip a single one:

pcie_replay_count(9), board_info(9), uma/carveout_options(9), uma/carveout(9), amdgpu_device_supports_px(9), amdgpu_device_supports_boco(9), amdgpu_device_supports_baco(9), amdgpu_device_supports_smart_shift(9), amdgpu_device_mm_access(9), amdgpu_device_aper_access(9), amdgpu_device_vram_access(9), amdgpu_device_get_rev_id(9), amdgpu_device_asic_init(9), amdgpu_device_mem_scratch_init(9), amdgpu_device_mem_scratch_fini(9), amdgpu_device_program_register_sequence(9), amdgpu_device_pci_config_reset(9), amdgpu_device_pci_reset(9), amdgpu_device_resize_fb_bar(9), amdgpu_device_need_post(9), amdgpu_device_should_use_aspm(9), amdgpu_device_vga_set_decode(9), amdgpu_device_check_block_size(9), amdgpu_device_check_vm_size(9), amdgpu_device_check_arguments(9), amdgpu_switcheroo_set_state(9), amdgpu_switcheroo_can_switch(9), amdgpu_device_enable_virtual_display(9), amdgpu_device_parse_gpu_info_fw(9), amdgpu_device_ip_early_init(9), amdgpu_device_ip_init(9), amdgpu_device_fill_reset_magic(9), amdgpu_device_check_vram_lost(9), amdgpu_device_set_cg_state(9), amdgpu_device_ip_late_init(9), amdgpu_device_smu_fini_early(9), amdgpu_device_ip_fini(9), amdgpu_device_delayed_init_work_handler(9), amdgpu_device_ip_suspend_phase1(9), amdgpu_device_ip_suspend_phase2(9), amdgpu_device_ip_suspend(9), amdgpu_device_ip_resume_phase1(9), amdgpu_device_ip_resume_phase2(9), amdgpu_device_ip_resume_phase3(9), amdgpu_device_ip_resume(9), amdgpu_device_detect_sriov_bios(9), amdgpu_device_asic_has_dc_support(9), amdgpu_device_has_dc_support(9), amdgpu_device_check_iommu_direct_map(9), amdgpu_device_check_iommu_remap(9), amdgpu_device_init(9), amdgpu_device_fini_hw(9), amdgpu_device_evict_resources(9), amdgpu_device_pm_notifier(9), amdgpu_device_prepare(9), amdgpu_device_complete(9), amdgpu_device_suspend(9), amdgpu_device_reset_sriov(9), amdgpu_device_has_job_running(9), amdgpu_device_should_recover_gpu(9), amdgpu_device_gpu_recover(9), amdgpu_device_partner_bandwidth(9), amdgpu_device_gpu_bandwidth(9), amdgpu_device_get_pcie_info(9), amdgpu_device_is_peer_accessible(9), amdgpu_pci_error_detected(9), amdgpu_pci_mmio_enabled(9), amdgpu_pci_slot_reset(9), amdgpu_pci_resume(9), amdgpu_device_halt(9), amdgpu_device_get_gang(9), amdgpu_device_switch_gang(9), amdgpu_device_enforce_isolation(9)

like i said. the whole friend group. 71 of them (don't quote me on the number, just scroll up and read them all 💀). iykyk. 🙈

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lowkey a heads up: the only thing this page promises is "brings hw back to operating state (all asics)" and "returns 0 for success or an error on failure". that's it. no extra lore. don't go making up behavior that isn't here, bestie. 🍓

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okay and finally, the cute little sign-off: this page lives in the ./drivers/gpu/drm/amd/amdgpu directory, it's dated October 2026, and it's proudly part of the Kernel API Manual. that's the footer, but make it fashion. 💖✨🎀🦋🌸💅🫶😭🔥👑🌈⭐💀🙈🍓🧚💜