[PATCH 6.0 12/20] drm/amd/pm: fulfill SMU13.0.0 cstate control interface

Greg Kroah-Hartman
2022-10-24T11:31:59Z

From: Evan Quan <evan.quan@amd.com>

commit 528c0e66e0c01a8c078d2d94431db80f9c75d2a0 upstream.

Fulfill the functionality for cstate control.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 6.0.x
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c | 11 +++++++++++
1 file changed, 11 insertions(+)

--- a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c
@@ -119,6 +119,7 @@ static struct cmn2asic_msg_mapping smu_v
MSG_MAP(NotifyPowerSource, PPSMC_MSG_NotifyPowerSource, 0),
MSG_MAP(Mode1Reset, PPSMC_MSG_Mode1Reset, 0),
MSG_MAP(PrepareMp1ForUnload, PPSMC_MSG_PrepareMp1ForUnload, 0),
+ MSG_MAP(DFCstateControl, PPSMC_MSG_SetExternalClientDfCstateAllow, 0),
};

static struct cmn2asic_mapping smu_v13_0_0_clk_map[SMU_CLK_COUNT] = {
@@ -1753,6 +1754,15 @@ static int smu_v13_0_0_set_mp1_state(str
return ret;
}

+static int smu_v13_0_0_set_df_cstate(struct smu_context *smu,
+ enum pp_df_cstate state)
+{
+ return smu_cmn_send_smc_msg_with_param(smu,
+ SMU_MSG_DFCstateControl,
+ state,
+ NULL);
+}
+
static const struct pptable_funcs smu_v13_0_0_ppt_funcs = {
.get_allowed_feature_mask = smu_v13_0_0_get_allowed_feature_mask,
.set_default_dpm_table = smu_v13_0_0_set_default_dpm_table,
@@ -1822,6 +1832,7 @@ static const struct pptable_funcs smu_v1
.mode1_reset_is_support = smu_v13_0_0_is_mode1_reset_supported,
.mode1_reset = smu_v13_0_mode1_reset,
.set_mp1_state = smu_v13_0_0_set_mp1_state,
+ .set_df_cstate = smu_v13_0_0_set_df_cstate,
};

void smu_v13_0_0_set_ppt_funcs(struct smu_context *smu)