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drm/amdgpu/vcn: set no_user_fence for VCN v4.0.5 enc ring 

VCN encoder and decoder rings do not support 64-bit user fence writes,
reject CS submissions with user fences.

Fixes: 547aad32ed ("drm/amdgpu: add VCN4 ip block support")
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Yinjie Yao <yinjie.yao@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 084d94ac93707bdda07efb5cee786f632de4219b)
master
Yinjie Yao 2026-04-27 11:45:36 -04:00 committed by Alex Deucher
parent 4532b52b34
commit 589a254bf3
1 changed files with 1 additions and 0 deletions
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drivers/gpu/drm/amd/amdgpu/vcn_v4_0_5.c
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@ -1483,6 +1483,7 @@ static struct amdgpu_ring_funcs vcn_v4_0_5_unified_ring_vm_funcs = {
.type = AMDGPU_RING_TYPE_VCN_ENC,
.align_mask = 0x3f,
.nop = VCN_ENC_CMD_NO_OP,
.no_user_fence = true,
.get_rptr = vcn_v4_0_5_unified_ring_get_rptr,
.get_wptr = vcn_v4_0_5_unified_ring_get_wptr,
.set_wptr = vcn_v4_0_5_unified_ring_set_wptr,