From acd546b9fda695e97473d0fb8e744aba6b274789 Mon Sep 17 00:00:00 2001 From: Trigger Huang Date: Thu, 28 Apr 2016 15:22:54 +0800 Subject: [PATCH] drm/amdgpu:bypass avfs event manager for sriov This patch is used for virtualization support. In virtualization case, the initialization sequences are not totally the same as non-Virtualization's. The avfs event manager should be bypassed if in SRIOV virtualization case. At the same, this patch will also bypass starting SMC within SRIOV in FIJI, so the SMU firmware loading will be avoid, which is required in SRIOV. Signed-off-by: Frank Min Signed-off-by: Xiangliang Yu Signed-off-by: Trigger Huang Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/powerplay/smumgr/fiji_smumgr.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/powerplay/smumgr/fiji_smumgr.c b/drivers/gpu/drm/amd/powerplay/smumgr/fiji_smumgr.c index b86e48fb40d1..26eff56b4a99 100755 --- a/drivers/gpu/drm/amd/powerplay/smumgr/fiji_smumgr.c +++ b/drivers/gpu/drm/amd/powerplay/smumgr/fiji_smumgr.c @@ -396,7 +396,8 @@ static int fiji_start_smu(struct pp_smumgr *smumgr) struct fiji_smumgr *priv = (struct fiji_smumgr *)(smumgr->backend); /* 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))) { fiji_avfs_event_mgr(smumgr, false); /* Check if SMU is running in protected mode */ @@ -443,6 +444,9 @@ static bool fiji_is_hw_avfs_present(struct pp_smumgr *smumgr) uint32_t efuse = 0; uint32_t mask = (1 << ((AVFS_EN_MSB - AVFS_EN_LSB) + 1)) - 1; + if (cgs_is_virtualization_enabled(smumgr->device)) + return 0; + if (!atomctrl_read_efuse(smumgr->device, AVFS_EN_LSB, AVFS_EN_MSB, mask, &efuse)) { if (efuse) -- 2.39.5