From fdf913bf1a0c6e57d79104090de3b1084101b13e Mon Sep 17 00:00:00 2001 From: Evan Quan Date: Tue, 27 Oct 2020 10:24:18 +0800 Subject: [PATCH] drm/amd/pm: do not use ixFEATURE_STATUS for checking smc running This reverts commit 5efa533f595347180ab10d8c636527b78a7bc404 ("drm/amdgpu: Fix bug where DPM is not enabled after hibernate and resume"). It was intended to fix Hawaii S4(hibernation) issue but break S3. As ixFEATURE_STATUS is filled with garbage data on resume which can be only cleared by reloading smc firmware(but that will involve many changes). So, we will revert this S4 fix and seek a new way. Signed-off-by: Evan Quan Tested-by: Sandeep Raghuraman Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/pm/powerplay/smumgr/ci_smumgr.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/drivers/gpu/drm/amd/pm/powerplay/smumgr/ci_smumgr.c b/drivers/gpu/drm/amd/pm/powerplay/smumgr/ci_smumgr.c index 09128122b4932..329bf4d44bbce 100644 --- a/drivers/gpu/drm/amd/pm/powerplay/smumgr/ci_smumgr.c +++ b/drivers/gpu/drm/amd/pm/powerplay/smumgr/ci_smumgr.c @@ -2726,10 +2726,7 @@ static int ci_initialize_mc_reg_table(struct pp_hwmgr *hwmgr) static bool ci_is_dpm_running(struct pp_hwmgr *hwmgr) { - return (1 == PHM_READ_INDIRECT_FIELD(hwmgr->device, - CGS_IND_REG__SMC, FEATURE_STATUS, - VOLTAGE_CONTROLLER_ON)) - ? true : false; + return ci_is_smc_ram_running(hwmgr); } static int ci_smu_init(struct pp_hwmgr *hwmgr) -- 2.39.5