Reviewed-by: Evan Quan <evan.quan@xxxxxxx>
-----Original Message-----
From: Liang, Prike <Prike.Liang@xxxxxxx>
Sent: Tuesday, September 17, 2019 10:54 AM
To: amd-gfx@xxxxxxxxxxxxxxxxxxxxx
Cc: Quan, Evan <Evan.Quan@xxxxxxx>; Feng, Kenneth <Kenneth.Feng@xxxxxxx>; Huang, Ray <Ray.Huang@xxxxxxx>; Liu, Aaron <Aaron.Liu@xxxxxxx>; Liang, Prike <Prike.Liang@xxxxxxx>
Subject: [PATCH] drm/amd/powerplay: implement VCN power gating control interface
VCN Gat/Ungat by processing the SMU power up/down message, otherwise
S3 will resume failed as JPEG always power off during start VCN stage.
Signed-off-by: Prike Liang <Prike.Liang@xxxxxxx>
---
drivers/gpu/drm/amd/powerplay/renoir_ppt.c | 28 +++++++++++++++++++++++++++-
1 file changed, 27 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/powerplay/renoir_ppt.c b/drivers/gpu/drm/amd/powerplay/renoir_ppt.c
index 2c22ba4..9311b6a 100644
--- a/drivers/gpu/drm/amd/powerplay/renoir_ppt.c
+++ b/drivers/gpu/drm/amd/powerplay/renoir_ppt.c
@@ -278,6 +278,32 @@ static enum amd_pm_state_type renoir_get_current_power_state(struct smu_context
return pm_type;
}
+static int renoir_dpm_set_uvd_enable(struct smu_context *smu, bool enable)
+{
+ struct smu_power_context *smu_power = &smu->smu_power;
+ struct smu_power_gate *power_gate = &smu_power->power_gate;
+ int ret = 0;
+
+ if (enable) {
+ /* vcn dpm on is a prerequisite for vcn power gate messages */
+ if (smu_feature_is_enabled(smu, SMU_FEATURE_VCN_PG_BIT)) {
+ ret = smu_send_smc_msg_with_param(smu, SMU_MSG_PowerUpVcn, 1);
+ if (ret)
+ return ret;
+ }
+ power_gate->vcn_gated = false;
+ } else {
+ if (smu_feature_is_enabled(smu, SMU_FEATURE_VCN_PG_BIT)) {
+ ret = smu_send_smc_msg(smu, SMU_MSG_PowerDownVcn);
+ if (ret)
+ return ret;
+ }
+ power_gate->vcn_gated = true;
+ }
+
+ return ret;
+}
+
static const struct pptable_funcs renoir_ppt_funcs = {
.get_smu_msg_index = renoir_get_smu_msg_index,
.get_smu_table_index = renoir_get_smu_table_index,
@@ -286,7 +312,7 @@ static const struct pptable_funcs renoir_ppt_funcs = {
.get_dpm_uclk_limited = renoir_get_dpm_uclk_limited,
.print_clk_levels = renoir_print_clk_levels,
.get_current_power_state = renoir_get_current_power_state,
-
+ .dpm_set_uvd_enable = renoir_dpm_set_uvd_enable,
};
void renoir_set_ppt_funcs(struct smu_context *smu)
--
2.7.4
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