hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

drm/amd/powerplay: avoid using pm_en before it is initialized revised 

hwmgr->pm_en is initialized at hwmgr_hw_init.

during amdgpu_device_init, there is amdgpu_asic_reset that calls to
soc15_asic_reset (for V320 usecase, Vega10 asic), in which:
1) soc15_asic_reset_method calls to pp_get_asic_baco_capability (pm_en)
2) soc15_asic_baco_reset calls to pp_set_asic_baco_state (pm_en)

pm_en is used in the above two cases while it has not yet been initialized

So avoid using pm_en in the above two functions for V320 passthrough.

Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Tiecheng Zhou <Tiecheng.Zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Tiecheng Zhou 2020-04-26 19:03:17 +08:00 committed by Alex Deucher
parent 1e4a18cc90
commit 690ae30be1
1 changed files with 4 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/gpu/drm/amd/powerplay/amd_powerplay.c
View File

@ -1435,7 +1435,8 @@ static int pp_get_asic_baco_capability(void *handle, bool *cap)
if (!hwmgr)
return -EINVAL;
if (!hwmgr->pm_en || !hwmgr->hwmgr_func->get_asic_baco_capability)
if (!(hwmgr->not_vf && amdgpu_dpm) ||
!hwmgr->hwmgr_func->get_asic_baco_capability)
return 0;
mutex_lock(&hwmgr->smu_lock);
@ -1469,7 +1470,8 @@ static int pp_set_asic_baco_state(void *handle, int state)
if (!hwmgr)
return -EINVAL;
if (!hwmgr->pm_en || !hwmgr->hwmgr_func->set_asic_baco_state)
if (!(hwmgr->not_vf && amdgpu_dpm) ||
!hwmgr->hwmgr_func->set_asic_baco_state)
return 0;
mutex_lock(&hwmgr->smu_lock);