From a1e0fdca75761ab0d6c72148ae59fc85fea9ad6f Mon Sep 17 00:00:00 2001
From: Evan Quan <evan.quan@amd.com>
Date: Mon, 18 Nov 2019 17:04:24 +0800
Subject: drm/amd/powerplay: correct swSMU baco reset related settings
Git-commit: b4f8285a1960f133cc679445049bb75e5c65a33f
Patch-mainline: v5.6-rc1
References: jsc#SLE-12680, jsc#SLE-12880, jsc#SLE-12882, jsc#SLE-12883, jsc#SLE-13496, jsc#SLE-15322

Added bif doorbell interrupt setting and applied different
settings for BACO reset for RAS recovery.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
 drivers/gpu/drm/amd/powerplay/smu_v11_0.c | 30 ++++++++++++++++++++---
 1 file changed, 27 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
index e4268a627eff..8c93bfaae38e 100644
--- a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
+++ b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
@@ -1643,6 +1643,10 @@ int smu_v11_0_baco_set_state(struct smu_context *smu, enum smu_baco_state state)
 {
 
 	struct smu_baco_context *smu_baco = &smu->smu_baco;
+	struct amdgpu_device *adev = smu->adev;
+	struct amdgpu_ras *ras = amdgpu_ras_get_context(adev);
+	uint32_t bif_doorbell_intr_cntl;
+	uint32_t data;
 	int ret = 0;
 
 	if (smu_v11_0_baco_get_state(smu) == state)
@@ -1650,10 +1654,30 @@ int smu_v11_0_baco_set_state(struct smu_context *smu, enum smu_baco_state state)
 
 	mutex_lock(&smu_baco->mutex);
 
-	if (state == SMU_BACO_STATE_ENTER)
-		ret = smu_send_smc_msg_with_param(smu, SMU_MSG_EnterBaco, BACO_SEQ_BACO);
-	else
+	bif_doorbell_intr_cntl = RREG32_SOC15(NBIO, 0, mmBIF_DOORBELL_INT_CNTL);
+
+	if (state == SMU_BACO_STATE_ENTER) {
+		bif_doorbell_intr_cntl = REG_SET_FIELD(bif_doorbell_intr_cntl,
+						BIF_DOORBELL_INT_CNTL,
+						DOORBELL_INTERRUPT_DISABLE, 1);
+		WREG32_SOC15(NBIO, 0, mmBIF_DOORBELL_INT_CNTL, bif_doorbell_intr_cntl);
+
+		if (!ras || !ras->supported) {
+			data = RREG32_SOC15(THM, 0, mmTHM_BACO_CNTL);
+			data |= 0x80000000;
+			WREG32_SOC15(THM, 0, mmTHM_BACO_CNTL, data);
+
+			ret = smu_send_smc_msg_with_param(smu, SMU_MSG_EnterBaco, 0);
+		} else {
+			ret = smu_send_smc_msg_with_param(smu, SMU_MSG_EnterBaco, 1);
+		}
+	} else {
 		ret = smu_send_smc_msg(smu, SMU_MSG_ExitBaco);
+		bif_doorbell_intr_cntl = REG_SET_FIELD(bif_doorbell_intr_cntl,
+						BIF_DOORBELL_INT_CNTL,
+						DOORBELL_INTERRUPT_DISABLE, 0);
+		WREG32_SOC15(NBIO, 0, mmBIF_DOORBELL_INT_CNTL, bif_doorbell_intr_cntl);
+	}
 	if (ret)
 		goto out;
 
-- 
2.28.0