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drm/amdgpu/jpeg5.0.1: add support for disabling kernel queues

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Allow the user to disable kernel queues.  This can be used
to free up vmid resources if kernel queues are not needed.

Set amdgpu.user_queue=2 to disable kernel queues.

Reviewed-by: Kent Russell <kent.russell@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher
2026-05-27 16:10:47 -04:00
parent eb0afbcc61
commit 8b5585574e
1 changed files with 17 additions and 0 deletions
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17
drivers/gpu/drm/amd/amdgpu/jpeg_v5_0_1.c
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@@ -118,6 +118,19 @@ static int jpeg_v5_0_1_early_init(struct amdgpu_ip_block *ip_block)
if (!adev->jpeg.num_jpeg_inst || adev->jpeg.num_jpeg_inst > AMDGPU_MAX_JPEG_INSTANCES)
return -ENOENT;
switch (amdgpu_user_queue) {
case -1:
case 0:
default:
adev->jpeg.disable_kq = false;
adev->jpeg.disable_uq = true;
break;
case 2:
adev->jpeg.disable_kq = true;
adev->jpeg.disable_uq = true;
break;
}
adev->jpeg.num_jpeg_rings = AMDGPU_MAX_JPEG_RINGS;
jpeg_v5_0_1_set_dec_ring_funcs(adev);
jpeg_v5_0_1_set_irq_funcs(adev);
@@ -172,6 +185,10 @@ static int jpeg_v5_0_1_sw_init(struct amdgpu_ip_block *ip_block)
for (j = 0; j < adev->jpeg.num_jpeg_rings; ++j) {
ring = &adev->jpeg.inst[i].ring_dec[j];
ring->use_doorbell = true;
if (adev->jpeg.disable_kq) {
ring->no_scheduler = true;
ring->no_user_submission = true;
}
ring->vm_hub = AMDGPU_MMHUB0(adev->jpeg.inst[i].aid_id);
if (!amdgpu_sriov_vf(adev)) {
ring->doorbell_index =