[PATCH] drm/amd/pm: change the baco parameter

[Gao, Likun]

[AMD Official Use Only - Internal Distribution Only]

Reviewed-by: Likun Gao <Likun.Gao at amd.com>

Regards,
Likun

-----Original Message-----
From: amd-gfx <amd-gfx-bounces at lists.freedesktop.org> On Behalf Of Kenneth Feng
Sent: Monday, November 16, 2020 4:20 PM
To: amd-gfx at lists.freedesktop.org
Cc: Feng, Kenneth <Kenneth.Feng at amd.com>
Subject: [PATCH] drm/amd/pm: change the baco parameter

For some products, baco parameter 1 is dummy and this doesn't trigger the baco entry/exit.
Parameter 0 is valid and these products don't depend on ras for baco sequence.

Signed-off-by: Kenneth Feng <kenneth.feng at amd.com>
---
 .../gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c    | 24 +++++++++++++------
 1 file changed, 17 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c
index b6453ee6f8e6..3e1a3cf44a69 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c
@@ -1495,15 +1495,25 @@ 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) {
-		if (!ras || !ras->supported) {
-			data = RREG32_SOC15(THM, 0, mmTHM_BACO_CNTL);
-			data |= 0x80000000;
-			WREG32_SOC15(THM, 0, mmTHM_BACO_CNTL, data);
-
+		switch (adev->asic_type) {
+		case CHIP_SIENNA_CICHLID:
+		case CHIP_NAVY_FLOUNDER:
+		case CHIP_DIMGREY_CAVEFISH:
 			ret = smu_cmn_send_smc_msg_with_param(smu, SMU_MSG_EnterBaco, 0, NULL);
-		} else {
-			ret = smu_cmn_send_smc_msg_with_param(smu, SMU_MSG_EnterBaco, 1, NULL);
+			break;
+		default:
+			if (!ras || !ras->supported) {
+				data = RREG32_SOC15(THM, 0, mmTHM_BACO_CNTL);
+				data |= 0x80000000;
+				WREG32_SOC15(THM, 0, mmTHM_BACO_CNTL, data);
+
+				ret = smu_cmn_send_smc_msg_with_param(smu, SMU_MSG_EnterBaco, 0, NULL);
+			} else {
+			  ret = smu_cmn_send_smc_msg_with_param(smu, SMU_MSG_EnterBaco, 1, NULL);
+			}
+			break;
 		}
+
 	} else {
 		ret = smu_cmn_send_smc_msg(smu, SMU_MSG_ExitBaco, NULL);
 		if (ret)
-- 
2.17.1

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