From: Alex Deucher alexander.deucher@amd.com
This reverts commit 9ccd11718d76b95c69aa773f2abedef560776037
The original commit 16fb4dca95daa ("drm/amdgpu: getting fan speed pwm for vega10 properly") was reverted in commit 4545ae2ed3f2 ("drm/amdgpu: Revert "drm/amdgpu: getting fan speed pwm for vega10 properly""). but the test that resulted in the revert was wrong and was fixed so the revert was reverted in commit 30b8e7b8ee3b ("Revert "drm/amdgpu: Revert "drm/amdgpu: getting fan speed pwm for vega10 properly"""). That should have been the end of it, but then Sasha picked up the original revert again and it was committed as 9ccd11718d76. So drop that commit so we get back to where we need to be.
Signed-off-by: Alex Deucher alexander.deucher@amd.com Cc: Sasha Levin sashal@kernel.org Cc: stable@vger.kernel.org # 6.1.x Cc: Yury Zhuravlev stalkerg@gmail.com Cc: Guchun Chen guchun.chen@amd.com Cc: Asher Song Asher.Song@amd.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega10_thermal.c | 25 +++++++--------- 1 file changed, 12 insertions(+), 13 deletions(-)
--- a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega10_thermal.c +++ b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/vega10_thermal.c @@ -67,22 +67,21 @@ int vega10_fan_ctrl_get_fan_speed_info(s int vega10_fan_ctrl_get_fan_speed_pwm(struct pp_hwmgr *hwmgr, uint32_t *speed) { - uint32_t current_rpm; - uint32_t percent = 0; + struct amdgpu_device *adev = hwmgr->adev; + uint32_t duty100, duty; + uint64_t tmp64;
- if (hwmgr->thermal_controller.fanInfo.bNoFan) - return 0; + duty100 = REG_GET_FIELD(RREG32_SOC15(THM, 0, mmCG_FDO_CTRL1), + CG_FDO_CTRL1, FMAX_DUTY100); + duty = REG_GET_FIELD(RREG32_SOC15(THM, 0, mmCG_THERMAL_STATUS), + CG_THERMAL_STATUS, FDO_PWM_DUTY);
- if (vega10_get_current_rpm(hwmgr, ¤t_rpm)) - return -1; + if (!duty100) + return -EINVAL;
- if (hwmgr->thermal_controller. - advanceFanControlParameters.usMaxFanRPM != 0) - percent = current_rpm * 255 / - hwmgr->thermal_controller. - advanceFanControlParameters.usMaxFanRPM; - - *speed = MIN(percent, 255); + tmp64 = (uint64_t)duty * 255; + do_div(tmp64, duty100); + *speed = MIN((uint32_t)tmp64, 255);
return 0; }