From: James Zhu <[email protected]> Enable vcn doorbell for vcn4.0.3.
Signed-off-by: James Zhu <[email protected]> Reviewed-by: Leo Liu <[email protected]> Signed-off-by: Alex Deucher <[email protected]> --- drivers/gpu/drm/amd/amdgpu/vcn_v4_0_3.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_3.c b/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_3.c index 98bff162f453..4418c9f05ec4 100644 --- a/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_3.c +++ b/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_3.c @@ -109,7 +109,8 @@ static int vcn_v4_0_3_sw_init(void *handle) return r; ring = &adev->vcn.inst->ring_dec; - ring->use_doorbell = false; + ring->use_doorbell = true; + ring->doorbell_index = (adev->doorbell_index.vcn.vcn_ring0_1 << 1) + 5; ring->vm_hub = AMDGPU_MMHUB0(0); sprintf(ring->name, "vcn_dec"); r = amdgpu_ring_init(adev, ring, 512, &adev->vcn.inst->irq, 0, @@ -174,6 +175,13 @@ static int vcn_v4_0_3_hw_init(void *handle) struct amdgpu_ring *ring = &adev->vcn.inst->ring_dec; int r; + adev->nbio.funcs->vcn_doorbell_range(adev, ring->use_doorbell, + ring->doorbell_index, ring->me); + if (ring->use_doorbell) + WREG32_SOC15(VCN, ring->me, regVCN_RB4_DB_CTRL, + ring->doorbell_index << VCN_RB4_DB_CTRL__OFFSET__SHIFT | + VCN_RB4_DB_CTRL__EN_MASK); + r = amdgpu_ring_test_helper(ring); if (!r) -- 2.39.2
