sdma_v7_0_r...it_hdp_flush(9)
π sdma_v7_0_ring_emit_hdp_flush(9) π
okay so bestie, welcome to the Kernel API Manual β this one's a little function page and honestly it's giving "quiet luxury" β¨
πΈ NAME πΈ
sdma_v7_0_ring_emit_hdp_flush β literally just: emit an hdp flush on the DMA ring π«Ά that's the whole vibe.
β¨ SYNOPSIS β¨
void sdma_v7_0_ring_emit_hdp_flush (struct amdgpu_ring *ring );
no cap, that's the entire signature. void in, void out, one lil pointer in the middle π
π ARGUMENTS π
ringβ an amdgpu ring pointer π like, the ring you're gonna flush on. that's it. that's the argument.
π¦ DESCRIPTION π¦
So what does it do? It emits an hdp flush packet on the requested DMA ring π«
That's the tea β β the packet goes out, on the ring, the hdp gets flushed, iconic behavior, periodt π
π SEE ALSO π
First up, the kernel file where all this lives:
./drivers/gpu/drm/amd/amdgpu/sdma_v7_0.c
and then the whole friend group π (yes there are a LOT of them, we're listing every single one, grab a snack π):
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_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_gfx_resume(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)
go read them all, iykyk πβ¨
ngl bestie this is a tiny page but every flag, arg and reference is here β don't skip the SEE ALSO list, it's a whole squad π€
kisses, that's the whole page π this one came from the ./drivers/gpu/drm/amd/amdgpu source vibe, dated October 2026 β slay, bye! π§ββοΈππ
π¦ where this page comes from
- nixpkgs unstable: linux-manual 7.3.1
- π girlified by deepseek-ai/DeepSeek-V4.1-Flash-1017 on : a language model's rewrite of the original, under its terms