diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/vcn_v4_0_5.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/vcn_v4_0_5.c | 33 |
1 files changed, 24 insertions, 9 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_5.c b/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_5.c index a09f9a2dd471..caf2d95a85d4 100644 --- a/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_5.c +++ b/drivers/gpu/drm/amd/amdgpu/vcn_v4_0_5.c @@ -220,7 +220,8 @@ static int vcn_v4_0_5_sw_init(struct amdgpu_ip_block *ip_block) } adev->vcn.supported_reset = amdgpu_get_soft_full_reset_mask(&adev->vcn.inst[0].ring_enc[0]); - adev->vcn.supported_reset |= AMDGPU_RESET_TYPE_PER_QUEUE; + if (!amdgpu_sriov_vf(adev)) + adev->vcn.supported_reset |= AMDGPU_RESET_TYPE_PER_QUEUE; r = amdgpu_vcn_sysfs_reset_mask_init(adev); if (r) @@ -1254,6 +1255,11 @@ static void vcn_v4_0_5_stop_dpg_mode(struct amdgpu_vcn_inst *vinst) /* disable dynamic power gating mode */ WREG32_P(SOC15_REG_OFFSET(VCN, inst_idx, regUVD_POWER_STATUS), 0, ~UVD_POWER_STATUS__UVD_PG_MODE_MASK); + + /* Keeping one read-back to ensure all register writes are done, + * otherwise it may introduce race conditions. + */ + RREG32_SOC15(VCN, inst_idx, regUVD_STATUS); } /** @@ -1337,6 +1343,11 @@ static int vcn_v4_0_5_stop(struct amdgpu_vcn_inst *vinst) /* enable VCN power gating */ vcn_v4_0_5_enable_static_power_gating(vinst); + /* Keeping one read-back to ensure all register writes are done, + * otherwise it may introduce race conditions. + */ + RREG32_SOC15(VCN, i, regUVD_STATUS); + done: if (adev->pm.dpm_enabled) amdgpu_dpm_enable_vcn(adev, false, i); @@ -1455,18 +1466,22 @@ static void vcn_v4_0_5_unified_ring_set_wptr(struct amdgpu_ring *ring) } } -static int vcn_v4_0_5_ring_reset(struct amdgpu_ring *ring, unsigned int vmid) +static int vcn_v4_0_5_ring_reset(struct amdgpu_ring *ring, + unsigned int vmid, + struct amdgpu_fence *timedout_fence) { struct amdgpu_device *adev = ring->adev; struct amdgpu_vcn_inst *vinst = &adev->vcn.inst[ring->me]; + int r; - if (!(adev->vcn.supported_reset & AMDGPU_RESET_TYPE_PER_QUEUE)) - return -EOPNOTSUPP; - - vcn_v4_0_5_stop(vinst); - vcn_v4_0_5_start(vinst); - - return amdgpu_ring_test_helper(ring); + amdgpu_ring_reset_helper_begin(ring, timedout_fence); + r = vcn_v4_0_5_stop(vinst); + if (r) + return r; + r = vcn_v4_0_5_start(vinst); + if (r) + return r; + return amdgpu_ring_reset_helper_end(ring, timedout_fence); } static struct amdgpu_ring_funcs vcn_v4_0_5_unified_ring_vm_funcs = { |