Commit 401b58ce authored by Chunming Zhou's avatar Chunming Zhou Committed by Alex Deucher

drm/amd/powerplay/rv: power up/down sdma via the SMU

sdma is powered down by default in vbios,
need to power up in driver init.  Power it down
again on driver tear down.
Signed-off-by: default avatarChunming Zhou <David1.Zhou@amd.com>
Reviewed-by: default avatarHawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent a960d61c
...@@ -243,6 +243,26 @@ static int rv_verify_smc_interface(struct pp_smumgr *smumgr) ...@@ -243,6 +243,26 @@ static int rv_verify_smc_interface(struct pp_smumgr *smumgr)
return 0; return 0;
} }
/* sdma is disabled by default in vbios, need to re-enable in driver */
static int rv_smc_enable_sdma(struct pp_smumgr *smumgr)
{
PP_ASSERT_WITH_CODE(!rv_send_msg_to_smc(smumgr,
PPSMC_MSG_PowerUpSdma),
"Attempt to power up sdma Failed!",
return -EINVAL);
return 0;
}
static int rv_smc_disable_sdma(struct pp_smumgr *smumgr)
{
PP_ASSERT_WITH_CODE(!rv_send_msg_to_smc(smumgr,
PPSMC_MSG_PowerDownSdma),
"Attempt to power down sdma Failed!",
return -EINVAL);
return 0;
}
static int rv_smu_fini(struct pp_smumgr *smumgr) static int rv_smu_fini(struct pp_smumgr *smumgr)
{ {
...@@ -250,6 +270,7 @@ static int rv_smu_fini(struct pp_smumgr *smumgr) ...@@ -250,6 +270,7 @@ static int rv_smu_fini(struct pp_smumgr *smumgr)
(struct rv_smumgr *)(smumgr->backend); (struct rv_smumgr *)(smumgr->backend);
if (priv) { if (priv) {
rv_smc_disable_sdma(smumgr);
cgs_free_gpu_mem(smumgr->device, cgs_free_gpu_mem(smumgr->device,
priv->smu_tables.entry[WMTABLE].handle); priv->smu_tables.entry[WMTABLE].handle);
cgs_free_gpu_mem(smumgr->device, cgs_free_gpu_mem(smumgr->device,
...@@ -265,6 +286,8 @@ static int rv_start_smu(struct pp_smumgr *smumgr) ...@@ -265,6 +286,8 @@ static int rv_start_smu(struct pp_smumgr *smumgr)
{ {
if (rv_verify_smc_interface(smumgr)) if (rv_verify_smc_interface(smumgr))
return -EINVAL; return -EINVAL;
if (rv_smc_enable_sdma(smumgr))
return -EINVAL;
return 0; return 0;
} }
......
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