drm/amdgpu/raven: power up/down VCN via the SMU (v2)
By default VCN is powered down like SDMA, power it up/down on driver load/unload. [Rui: Fix to add the parameter 0 to un-gate VCN] v2 Acked-by: Huang Rui <ray.huang@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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@ -264,6 +264,27 @@ static int rv_smc_disable_sdma(struct pp_smumgr *smumgr)
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return 0;
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}
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/* vcn is disabled by default in vbios, need to re-enable in driver */
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static int rv_smc_enable_vcn(struct pp_smumgr *smumgr)
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{
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PP_ASSERT_WITH_CODE(!rv_send_msg_to_smc_with_parameter(smumgr,
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PPSMC_MSG_PowerUpVcn, 0),
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"Attempt to power up vcn Failed!",
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return -EINVAL);
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return 0;
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}
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static int rv_smc_disable_vcn(struct pp_smumgr *smumgr)
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{
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PP_ASSERT_WITH_CODE(!rv_send_msg_to_smc_with_parameter(smumgr,
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PPSMC_MSG_PowerDownVcn, 0),
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"Attempt to power down vcn Failed!",
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return -EINVAL);
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return 0;
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}
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static int rv_smu_fini(struct pp_smumgr *smumgr)
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{
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struct rv_smumgr *priv =
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@ -271,6 +292,7 @@ static int rv_smu_fini(struct pp_smumgr *smumgr)
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if (priv) {
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rv_smc_disable_sdma(smumgr);
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rv_smc_disable_vcn(smumgr);
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cgs_free_gpu_mem(smumgr->device,
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priv->smu_tables.entry[WMTABLE].handle);
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cgs_free_gpu_mem(smumgr->device,
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@ -288,6 +310,8 @@ static int rv_start_smu(struct pp_smumgr *smumgr)
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return -EINVAL;
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if (rv_smc_enable_sdma(smumgr))
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return -EINVAL;
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if (rv_smc_enable_vcn(smumgr))
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return -EINVAL;
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return 0;
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}
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