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drm/amd/powerplay:Tonga not to start SMC if SRIOV

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This patch is used for virtualization support. In virtualization case,
Tonga SMC should not be started and SMU firmware should not be loaded
if in SRIOV environment. The same operation will be applied on FIJI in
other patch.

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Signed-off-by: Trigger Huang <trigger.huang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Trigger Huang 2016-10-11 13:21:11 +08:00 committed by Alex Deucher
parent aa4747c00a
commit 061995540d
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/amd/powerplay/smumgr/tonga_smumgr.c
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@ -140,7 +140,8 @@ static int tonga_start_smu(struct pp_smumgr *smumgr)
int result;
/* Only start SMC if SMC RAM is not running */
if (!smu7_is_smc_ram_running(smumgr)) {
if (!(smu7_is_smc_ram_running(smumgr) ||
cgs_is_virtualization_enabled(smumgr->device))) {
/*Check if SMU is running in protected mode*/
if (0 == SMUM_READ_VFPF_INDIRECT_FIELD(smumgr->device, CGS_IND_REG__SMC,
SMU_FIRMWARE, SMU_MODE)) {