drm/amd/powerplay: add DFCstate control pptable func for arct

This is the callback function that is going to be invoked
when amdgpu_dpm_set_df_cstate is called to toggle DFCstate

Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com>
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/arcturus_ppt.c b/drivers/gpu/drm/amd/powerplay/arcturus_ppt.c
index 14ba6aa..d3c4e7a 100644 (file)
--- a/drivers/gpu/drm/amd/powerplay/arcturus_ppt.c
+++ b/drivers/gpu/drm/amd/powerplay/arcturus_ppt.c
@@ -127,6 +127,7 @@ static struct smu_11_0_cmn2aisc_mapping arcturus_message_map[SMU_MSG_MAX_COUNT]
        MSG_MAP(WaflTest,                            PPSMC_MSG_WaflTest),
        MSG_MAP(SetXgmiMode,                         PPSMC_MSG_SetXgmiMode),
        MSG_MAP(SetMemoryChannelEnable,              PPSMC_MSG_SetMemoryChannelEnable),
+       MSG_MAP(DFCstateControl,                     PPSMC_MSG_DFCstateControl),
 };
 
 static struct smu_11_0_cmn2aisc_mapping arcturus_clk_map[SMU_CLK_COUNT] = {
@@ -2214,6 +2215,27 @@ static uint32_t arcturus_get_pptable_power_limit(struct smu_context *smu)
        return pptable->SocketPowerLimitAc[PPT_THROTTLER_PPT0];
 }
 
+static int arcturus_set_df_cstate(struct smu_context *smu,
+                                 enum pp_df_cstate state)
+{
+       uint32_t smu_version;
+       int ret;
+
+       ret = smu_get_smc_version(smu, NULL, &smu_version);
+       if (ret) {
+               pr_err("Failed to get smu version!\n");
+               return ret;
+       }
+
+       /* PPSMC_MSG_DFCstateControl is supported by 54.15.0 and onwards */
+       if (smu_version < 0x360F00) {
+               pr_err("DFCstateControl is only supported by PMFW 54.15.0 and onwards\n");
+               return -EINVAL;
+       }
+
+       return smu_send_smc_msg_with_param(smu, SMU_MSG_DFCstateControl, state);
+}
+
 static const struct pptable_funcs arcturus_ppt_funcs = {
        /* translate smu index into arcturus specific index */
        .get_smu_msg_index = arcturus_get_smu_msg_index,
@@ -2307,6 +2329,7 @@ static const struct pptable_funcs arcturus_ppt_funcs = {
        .set_soft_freq_limited_range = smu_v11_0_set_soft_freq_limited_range,
        .override_pcie_parameters = smu_v11_0_override_pcie_parameters,
        .get_pptable_power_limit = arcturus_get_pptable_power_limit,
+       .set_df_cstate = arcturus_set_df_cstate,
 };
 
 void arcturus_set_ppt_funcs(struct smu_context *smu)