drm/amdgpu/powerplay: add set_mp1_state for vega20

This sets the SMU into the proper state for various
operations (shutdown, unload, GPU reset, etc.).

Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.c
index f27c6fbb192ed20133982db6df494893939f482a..0516c294b37784ccd11176dab93bad31a4833e77 100644 (file)
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.c
@@ -3063,6 +3063,34 @@ static int vega20_odn_edit_dpm_table(struct pp_hwmgr *hwmgr,
        return 0;
 }
 
+static int vega20_set_mp1_state(struct pp_hwmgr *hwmgr,
+                               enum pp_mp1_state mp1_state)
+{
+       uint16_t msg;
+       int ret;
+
+       switch (mp1_state) {
+       case PP_MP1_STATE_SHUTDOWN:
+               msg = PPSMC_MSG_PrepareMp1ForShutdown;
+               break;
+       case PP_MP1_STATE_UNLOAD:
+               msg = PPSMC_MSG_PrepareMp1ForUnload;
+               break;
+       case PP_MP1_STATE_RESET:
+               msg = PPSMC_MSG_PrepareMp1ForReset;
+               break;
+       case PP_MP1_STATE_NONE:
+       default:
+               return 0;
+       }
+
+       PP_ASSERT_WITH_CODE((ret = smum_send_msg_to_smc(hwmgr, msg)) == 0,
+                           "[PrepareMp1] Failed!",
+                           return ret);
+
+       return 0;
+}
+
 static int vega20_get_ppfeature_status(struct pp_hwmgr *hwmgr, char *buf)
 {
        static const char *ppfeature_name[] = {
@@ -4123,6 +4151,7 @@ static const struct pp_hwmgr_func vega20_hwmgr_funcs = {
        .get_asic_baco_capability = vega20_baco_get_capability,
        .get_asic_baco_state = vega20_baco_get_state,
        .set_asic_baco_state = vega20_baco_set_state,
+       .set_mp1_state = vega20_set_mp1_state,
 };
 
 int vega20_hwmgr_init(struct pp_hwmgr *hwmgr)