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From d8aec262495a97021b7f2334c1461de475613bba Mon Sep 17 00:00:00 2001
From: shaoyunl <shaoyun.liu@amd.com>
Date: Mon, 15 Apr 2019 11:22:38 -0400
Subject: [PATCH 1792/2940] drm/powerplay : send SMC message to set XGMI pstate
Send message with parameter to SMC to set xgmi pstate
Change-Id: I5d90cffd63690f31f0df62c206b263d300f14234
Signed-off-by: shaoyunl <shaoyun.liu@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
---
drivers/gpu/drm/amd/powerplay/smu_v11_0.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
index c478b38662d0..92903a4cc4d8 100644
--- a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
+++ b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
@@ -1896,8 +1896,13 @@ static int smu_v11_0_set_fan_speed_rpm(struct smu_context *smu,
static int smu_v11_0_set_xgmi_pstate(struct smu_context *smu,
uint32_t pstate)
{
- /* send msg to SMU to set pstate */
- return 0;
+ int ret = 0;
+ mutex_lock(&(smu->mutex));
+ ret = smu_send_smc_msg_with_param(smu,
+ SMU_MSG_SetXgmiMode,
+ pstate ? XGMI_STATE_D0 : XGMI_STATE_D3);
+ mutex_unlock(&(smu->mutex));
+ return ret;
}
static const struct smu_funcs smu_v11_0_funcs = {
--
2.17.1
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