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Commit 380cc704 authored by Alex Deucher's avatar Alex Deucher
Browse files

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: default avatarHuang Rui <ray.huang@amd.com>
Reviewed-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Reviewed-by: default avatarHawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: default avatarHuang Rui <ray.huang@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 401b58ce

drivers/gpu/drm/amd/powerplay/smumgr/rv_smumgr.c

+24 −0
Original line number Diff line number Diff line
@@ -264,6 +264,27 @@ static int rv_smc_disable_sdma(struct pp_smumgr *smumgr) 
	return 0;

}



/* vcn is disabled by default in vbios, need to re-enable in driver */

static int rv_smc_enable_vcn(struct pp_smumgr *smumgr)

{

	PP_ASSERT_WITH_CODE(!rv_send_msg_to_smc_with_parameter(smumgr,

			PPSMC_MSG_PowerUpVcn, 0),

			"Attempt to power up vcn Failed!",

			return -EINVAL);



	return 0;

}



static int rv_smc_disable_vcn(struct pp_smumgr *smumgr)

{

	PP_ASSERT_WITH_CODE(!rv_send_msg_to_smc_with_parameter(smumgr,

			PPSMC_MSG_PowerDownVcn, 0),

			"Attempt to power down vcn Failed!",

			return -EINVAL);



	return 0;

}



static int rv_smu_fini(struct pp_smumgr *smumgr)

{

	struct rv_smumgr *priv =
@@ -271,6 +292,7 @@ static int rv_smu_fini(struct pp_smumgr *smumgr) 


	if (priv) {

		rv_smc_disable_sdma(smumgr);

		rv_smc_disable_vcn(smumgr);

		cgs_free_gpu_mem(smumgr->device,

				priv->smu_tables.entry[WMTABLE].handle);

		cgs_free_gpu_mem(smumgr->device,
@@ -288,6 +310,8 @@ static int rv_start_smu(struct pp_smumgr *smumgr) 
		return -EINVAL;

	if (rv_smc_enable_sdma(smumgr))

		return -EINVAL;

	if (rv_smc_enable_vcn(smumgr))

		return -EINVAL;



	return 0;

}