uvd_v7_0_ring_emit_fence(9)
π
uvd_v7_0_ring_emit_fence β a lil Kernel API Manual moment π
okay so bestie, we're in the Kernel API Manual today and the main character is uvd_v7_0_ring_emit_fence(9). yes it's a long name. yes it's lowkey a mouthful. no we're not changing it. let's go β¨
π NAME π
uvd_v7_0_ring_emit_fence β emit an fence & trap command
(not me quoting that grammar exactly as-is, it's giving iconic and we respect it π«Ά)
πΈ SYNOPSIS πΈ
void uvd_v7_0_ring_emit_fence (struct amdgpu_ring *ring , u64 addr , u64
seq , unsigned flags );
she's void, she returns nothing, she simply does. no cap. π
π¦ ARGUMENTS π¦
ringβ anamdgpu_ringpointer. literally the ring bestie, the whole vibe.addrβ the address. that's it, that's the whole thing πseqβ the sequence number, au64of pure destiny β¨flagsβ the fence related flags. fence-adjacent. flags for the fence. ykwim π₯
π§ DESCRIPTION π§
okay so here's the tea π: this function writes a fence and a trap command to the ring. that's the entire plot. two things, one ring, zero drama. she said "fence AND trap" and honestly? ate. π
β SEE ALSO β
bestie there is a whole friend group here, and we're listing every single one of them because nobody gets left out in this house π
- Kernel file
./drivers/gpu/drm/amd/amdgpu/uvd_v7_0.c uvd_v7_0_ring_get_rptr(9)uvd_v7_0_enc_ring_get_rptr(9)uvd_v7_0_ring_get_wptr(9)uvd_v7_0_enc_ring_get_wptr(9)uvd_v7_0_ring_set_wptr(9)uvd_v7_0_enc_ring_set_wptr(9)uvd_v7_0_enc_ring_test_ring(9)uvd_v7_0_enc_get_create_msg(9)uvd_v7_0_enc_get_destroy_msg(9)uvd_v7_0_enc_ring_test_ib(9)uvd_v7_0_hw_init(9)uvd_v7_0_hw_fini(9)uvd_v7_0_mc_resume(9)uvd_v7_0_start(9)uvd_v7_0_stop(9)uvd_v7_0_enc_ring_emit_fence(9)uvd_v7_0_ring_emit_hdp_flush(9)uvd_v7_0_ring_test_ring(9)uvd_v7_0_ring_patch_cs_in_place(9)uvd_v7_0_ring_emit_ib(9)uvd_v7_0_enc_ring_emit_ib(9)
twenty-two entries. a whole squad. main character energy radiating from every single one of them π
quick vibe check: this page lives in./drivers/gpu/drm/amd/amdgpu, dated October 2026, and it's pageuvd_v7_0_ring_emit_fence(9)of the Kernel API Manual. mwah, that's the whole thing, go emit your fences responsibly π
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