This patch is to retain the fine grain tuning parameters after resume for
legacy APU, it will cover Raven/Raven2/Picasso.
Signed-off-by: Xiaojian Du <Xiaojian.Du@xxxxxxx>
---
.../amd/pm/powerplay/hwmgr/hardwaremanager.c | 3 ++-
.../drm/amd/pm/powerplay/hwmgr/smu10_hwmgr.c | 21 +++++++++++++++++++
2 files changed, 23 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/hardwaremanager.c b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/hardwaremanager.c
index 25b5831a15cd..370deae7b054 100644
--- a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/hardwaremanager.c
+++ b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/hardwaremanager.c
@@ -82,7 +82,8 @@ int phm_enable_dynamic_state_management(struct pp_hwmgr *hwmgr)
/* Skip for suspend/resume case */
if (!hwmgr->pp_one_vf && smum_is_dpm_running(hwmgr)
- && !amdgpu_passthrough(adev) && adev->in_suspend) {
+ && !amdgpu_passthrough(adev) && adev->in_suspend
+ && !adev->apu_flags) {
pr_info("dpm has been enabled\n");
return 0;
}
diff --git a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu10_hwmgr.c b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu10_hwmgr.c
index f5fe540cd536..8f71f6a4bb49 100644
--- a/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu10_hwmgr.c
+++ b/drivers/gpu/drm/amd/pm/powerplay/hwmgr/smu10_hwmgr.c
@@ -377,6 +377,27 @@ static int smu10_enable_gfx_off(struct pp_hwmgr *hwmgr)
static int smu10_enable_dpm_tasks(struct pp_hwmgr *hwmgr)
{
+ struct amdgpu_device *adev = hwmgr->adev;
+ struct smu10_hwmgr *smu10_data = (struct smu10_hwmgr *)(hwmgr->backend);
+ int ret = -EINVAL;
+
+ if (adev->in_suspend) {
+ pr_info("restore the fine grain parameters\n");
+
+ ret = smum_send_msg_to_smc_with_parameter(hwmgr,
+ PPSMC_MSG_SetHardMinGfxClk,
+ smu10_data->gfx_actual_soft_min_freq,
+ NULL);
+ if (ret)
+ return ret;
+ ret = smum_send_msg_to_smc_with_parameter(hwmgr,
+ PPSMC_MSG_SetSoftMaxGfxClk,
+ smu10_data->gfx_actual_soft_max_freq,
+ NULL);
+ if (ret)
+ return ret;
+ }
+
return 0;
}
--
2.25.1
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