sdma_v7_1_inst_start(9)

🌸 NAME 🌸

Hey bestie, welcome to sdma_v7_1_inst_start(9) from the Kernel API Manual — this one is literally about setting up and starting the async dma engines. 💅✨

🎀 SYNOPSIS 🎀

int sdma_v7_1_inst_start (struct amdgpu_device *adev , uint32_t inst_mask );

💖 ARGUMENTS 💖

• adev — an amdgpu_device pointer, aka the main character of this function call. 🫶
• inst_mask — the mask of dma engine instances to be enabled. Slay, tell the engines exactly which instances are invited to the party. 🎟️

🦋 DESCRIPTION 🦋

Okay so what this does is set up the DMA engines and enable them. That’s the vibe. 🔥

It returns 0 for success, and error for failure. No cap — success is 0, and if things go wrong you get an error. 💀

✨ SEE ALSO ✨

The kernel file is ./drivers/gpu/drm/amd/amdgpu/sdma_v7_1.c — yes bestie, that exact path. 🧚

• sdma_v7_1_ring_get_rptr(9)
• sdma_v7_1_ring_get_wptr(9)
• sdma_v7_1_ring_set_wptr(9)
• sdma_v7_1_ring_emit_ib(9)
• sdma_v7_1_ring_emit_mem_sync(9)
• sdma_v7_1_ring_emit_fence(9)
• sdma_v7_1_inst_gfx_stop(9)
• sdma_v7_1_inst_rlc_stop(9)
• sdma_v7_1_inst_ctx_switch_enable(9)
• sdma_v7_1_inst_enable(9)
• sdma_v7_1_gfx_resume_instance(9)
• sdma_v7_1_inst_gfx_resume(9)
• sdma_v7_1_inst_rlc_resume(9)
• sdma_v7_1_inst_load_microcode(9)
• sdma_v7_1_ring_test_ring(9)
• sdma_v7_1_ring_test_ib(9)
• sdma_v7_1_vm_copy_pte(9)
• sdma_v7_1_vm_write_pte(9)
• sdma_v7_1_vm_set_pte_pde(9)
• sdma_v7_1_ring_pad_ib(9)
• sdma_v7_1_ring_emit_pipeline_sync(9)
• sdma_v7_1_ring_emit_vm_flush(9)
• sdma_v7_1_emit_copy_buffer(9)
• sdma_v7_1_emit_fill_buffer(9)

Mwah 💋 this cutie comes from ./drivers/gpu/drm/amd/amdgpu and is dated October 2026. Periodt. 👑🌈