sdma_v7_0_gfx_resume(9)

💅 sdma_v7_0_gfx_resume(9) — a Kernel API Manual moment

okay so bestie, we're cracking open the Kernel API Manual today and the main character is sdma_v7_0_gfx_resume(9). buckle up 🎀

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✨ NAME ✨

sdma_v7_0_gfx_resume — it sets up the async dma engines and then starts them. literally the "wake up babe, we're going live" of the graphics DMA world 🦋

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🌸 SYNOPSIS 🌸

int sdma_v7_0_gfx_resume (struct amdgpu_device *adev );

yes the spacing is a little unhinged, no we are not fixing it, that's how it lives 😌

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💖 ARGUMENTS 💖

• adev — an amdgpu_device pointer. that's the whole argument. she's low maintenance, we stan 🫶

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⭐ DESCRIPTION ⭐

so what does this icon actually do? she sets up the gfx DMA ring buffers and then enables them. that's the vibe. 🧚

and the return sitch? 0 for success, and an error for failure. no cap, that's the whole contract 💅

ngl this is the resume half of the lifecycle, so if you're here you're probably bringing things back up — treat the return value with respect or the vibe check will not be kind 💀

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🔥 SEE ALSO 🔥

the girlies she runs with, in no particular order (jk it's exactly this order):

• the kernel file herself: ./drivers/gpu/drm/amd/amdgpu/sdma_v7_0.c
• sdma_v7_0_ring_get_rptr(9)
• sdma_v7_0_ring_get_wptr(9)
• sdma_v7_0_ring_set_wptr(9)
• sdma_v7_0_ring_emit_ib(9)
• sdma_v7_0_ring_emit_mem_sync(9)
• sdma_v7_0_ring_emit_hdp_flush(9)
• sdma_v7_0_ring_emit_fence(9)
• sdma_v7_0_gfx_stop(9)
• sdma_v7_0_rlc_stop(9)
• sdma_v7_0_ctx_switch_enable(9)
• sdma_v7_0_enable(9)
• sdma_v7_0_gfx_resume_instance(9)
• sdma_v7_0_rlc_resume(9)
• sdma_v7_0_load_microcode(9)
• sdma_v7_0_start(9)
• sdma_v7_0_ring_test_ring(9)
• sdma_v7_0_ring_test_ib(9)
• sdma_v7_0_vm_copy_pte(9)
• sdma_v7_0_vm_write_pte(9)
• sdma_v7_0_vm_set_pte_pde(9)
• sdma_v7_0_ring_pad_ib(9)
• sdma_v7_0_ring_emit_pipeline_sync(9)
• sdma_v7_0_ring_emit_vm_flush(9)
• sdma_v7_0_emit_copy_buffer(9)
• sdma_v7_0_emit_fill_buffer(9)

like, the whole friend group showed up to the function — ate and left no crumbs 👑

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that's the page, bestie 🌈 a little sign-off for the credits: this one lives in ./drivers/gpu/drm/amd/amdgpu, it's dated October 2026, and it's sdma_v7_0_gfx_resume(9) in the Kernel API Manual. periodt 💜🎀