From d78fe0a92343838182fa75c58e6a547993ad8345 Mon Sep 17 00:00:00 2001
From: Tiecheng Zhou <Tiecheng.Zhou@amd.com>
Date: Thu, 2 Apr 2020 16:49:36 +0800
Subject: drm/amd/powerplay: avoid using pm_en before it is initialized
Git-commit: 764a21cb085b8d7d754b5d74e2ecc6adc064e3e7
Patch-mainline: v5.8-rc1
References: jsc#SLE-12680, jsc#SLE-12880, jsc#SLE-12882, jsc#SLE-12883, jsc#SLE-13496, jsc#SLE-15322
hwmgr->pm_en is initialized at hwmgr_hw_init.
during amdgpu_device_init, there is amdgpu_asic_reset that calls to
pp_get_asic_baco_capability, while hwmgr->pm_en has not yet been initialized.
so avoid using pm_en in pp_get_asic_baco_capability.
Reviewed-by: Emily Deng <Emily.Deng@amd.com>
Signed-off-by: Tiecheng Zhou <Tiecheng.Zhou@amd.com>
Signed-off-by: Yintian Tao <yttao@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/amd/powerplay/amd_powerplay.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
index 7e6dcdf7df73..396aaed82932 100644
--- a/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
+++ b/drivers/gpu/drm/amd/powerplay/amd_powerplay.c
@@ -1456,7 +1456,8 @@ static int pp_get_asic_baco_state(void *handle, int *state)
if (!hwmgr)
return -EINVAL;
- if (!hwmgr->pm_en || !hwmgr->hwmgr_func->get_asic_baco_state)
+ if (!(hwmgr->not_vf && amdgpu_dpm) ||
+ !hwmgr->hwmgr_func->get_asic_baco_state)
return 0;
mutex_lock(&hwmgr->smu_lock);
--
2.28.0