[PATCH] drm/amdgpu:bypass avfs event manager for sriov

[Trigger Huang]

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.

Signed-off-by: Frank Min <Frank.Min at amd.com>
Signed-off-by: Xiangliang Yu <Xiangliang.Yu at amd.com>
Signed-off-by: Trigger Huang <trigger.huang at amd.com>
---
 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 b86e48f..26eff56 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)
-- 
2.7.4