[PATCH V2 2/5] drm/amd/pm: correct the runpm handling for BACO supported ASIC

[Evan Quan]

Via the fSMC_MSG_ArmD3 message, PMFW can properly act on the
Dstate change. Driver involvement for determining the timing for
BACO enter/exit is not needed.

Change-Id: Id9ab5e308ff1873888d0acd822c71b0a303fbb01
Signed-off-by: Evan Quan <evan.quan at amd.com>
---
V1->V2:
  - limit the changes for Navi1x and Sienna_Cichlid which support
    the fSMC_MSG_ArmD3 message
---
 drivers/gpu/drm/amd/pm/inc/smu_v11_0.h        |  3 +++
 .../gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c   | 27 +++++++++++++++++--
 .../amd/pm/swsmu/smu11/sienna_cichlid_ppt.c   | 27 +++++++++++++++++--
 .../gpu/drm/amd/pm/swsmu/smu11/smu_v11_0.c    | 11 ++------
 4 files changed, 55 insertions(+), 13 deletions(-)

diff --git a/drivers/gpu/drm/amd/pm/inc/smu_v11_0.h b/drivers/gpu/drm/amd/pm/inc/smu_v11_0.h
index a3b28979bc82..1962a5877191 100644
--- a/drivers/gpu/drm/amd/pm/inc/smu_v11_0.h
+++ b/drivers/gpu/drm/amd/pm/inc/smu_v11_0.h
@@ -244,6 +244,9 @@ int smu_v11_0_baco_set_state(struct smu_context *smu, enum smu_baco_state state)
 int smu_v11_0_baco_enter(struct smu_context *smu);
 int smu_v11_0_baco_exit(struct smu_context *smu);
 
+int smu_v11_0_baco_set_armd3_sequence(struct smu_context *smu,
+				      enum smu_v11_0_baco_seq baco_seq);
+
 int smu_v11_0_mode1_reset(struct smu_context *smu);
 
 int smu_v11_0_get_dpm_ultimate_freq(struct smu_context *smu, enum smu_clk_type clk_type,
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c
index 32a52c1bea07..afd4bd850c63 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c
@@ -2240,6 +2240,29 @@ static bool navi10_is_baco_supported(struct smu_context *smu)
 	return (val & RCC_BIF_STRAP0__STRAP_PX_CAPABLE_MASK) ? true : false;
 }
 
+static int navi10_baco_enter(struct smu_context *smu)
+{
+	struct amdgpu_device *adev = smu->adev;
+
+	if (adev->in_runpm)
+		return smu_v11_0_baco_set_armd3_sequence(smu, BACO_SEQ_BACO);
+	else
+		return smu_v11_0_baco_enter(smu);
+}
+
+static int navi10_baco_exit(struct smu_context *smu)
+{
+	struct amdgpu_device *adev = smu->adev;
+
+	if (adev->in_runpm) {
+		/* Wait for PMFW handling for the Dstate change */
+		msleep(10);
+		return smu_v11_0_baco_set_armd3_sequence(smu, BACO_SEQ_ULPS);
+	} else {
+		return smu_v11_0_baco_exit(smu);
+	}
+}
+
 static int navi10_set_default_od_settings(struct smu_context *smu)
 {
 	OverDriveTable_t *od_table =
@@ -3078,8 +3101,8 @@ static const struct pptable_funcs navi10_ppt_funcs = {
 	.baco_is_support= navi10_is_baco_supported,
 	.baco_get_state = smu_v11_0_baco_get_state,
 	.baco_set_state = smu_v11_0_baco_set_state,
-	.baco_enter = smu_v11_0_baco_enter,
-	.baco_exit = smu_v11_0_baco_exit,
+	.baco_enter = navi10_baco_enter,
+	.baco_exit = navi10_baco_exit,
 	.get_dpm_ultimate_freq = smu_v11_0_get_dpm_ultimate_freq,
 	.set_soft_freq_limited_range = smu_v11_0_set_soft_freq_limited_range,
 	.set_default_od_settings = navi10_set_default_od_settings,
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c
index 095492bd635f..b4a2bb0f3f4c 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/sienna_cichlid_ppt.c
@@ -2106,6 +2106,29 @@ static bool sienna_cichlid_is_baco_supported(struct smu_context *smu)
 	return (val & RCC_BIF_STRAP0__STRAP_PX_CAPABLE_MASK) ? true : false;
 }
 
+static int sienna_cichlid_baco_enter(struct smu_context *smu)
+{
+	struct amdgpu_device *adev = smu->adev;
+
+	if (adev->in_runpm)
+		return smu_v11_0_baco_set_armd3_sequence(smu, BACO_SEQ_BACO);
+	else
+		return smu_v11_0_baco_enter(smu);
+}
+
+static int sienna_cichlid_baco_exit(struct smu_context *smu)
+{
+	struct amdgpu_device *adev = smu->adev;
+
+	if (adev->in_runpm) {
+		/* Wait for PMFW handling for the Dstate change */
+		msleep(10);
+		return smu_v11_0_baco_set_armd3_sequence(smu, BACO_SEQ_ULPS);
+	} else {
+		return smu_v11_0_baco_exit(smu);
+	}
+}
+
 static bool sienna_cichlid_is_mode1_reset_supported(struct smu_context *smu)
 {
 	struct amdgpu_device *adev = smu->adev;
@@ -3881,8 +3904,8 @@ static const struct pptable_funcs sienna_cichlid_ppt_funcs = {
 	.baco_is_support= sienna_cichlid_is_baco_supported,
 	.baco_get_state = smu_v11_0_baco_get_state,
 	.baco_set_state = smu_v11_0_baco_set_state,
-	.baco_enter = smu_v11_0_baco_enter,
-	.baco_exit = smu_v11_0_baco_exit,
+	.baco_enter = sienna_cichlid_baco_enter,
+	.baco_exit = sienna_cichlid_baco_exit,
 	.mode1_reset_is_support = sienna_cichlid_is_mode1_reset_supported,
 	.mode1_reset = smu_v11_0_mode1_reset,
 	.get_dpm_ultimate_freq = sienna_cichlid_get_dpm_ultimate_freq,
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 362696208fd8..0376bf67ee08 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
@@ -1474,7 +1474,8 @@ int smu_v11_0_set_azalia_d3_pme(struct smu_context *smu)
 	return smu_cmn_send_smc_msg(smu, SMU_MSG_BacoAudioD3PME, NULL);
 }
 
-static int smu_v11_0_baco_set_armd3_sequence(struct smu_context *smu, enum smu_v11_0_baco_seq baco_seq)
+int smu_v11_0_baco_set_armd3_sequence(struct smu_context *smu,
+				      enum smu_v11_0_baco_seq baco_seq)
 {
 	return smu_cmn_send_smc_msg_with_param(smu, SMU_MSG_ArmD3, baco_seq, NULL);
 }
@@ -1578,16 +1579,8 @@ int smu_v11_0_baco_set_state(struct smu_context *smu, enum smu_baco_state state)
 
 int smu_v11_0_baco_enter(struct smu_context *smu)
 {
-	struct amdgpu_device *adev = smu->adev;
 	int ret = 0;
 
-	/* Arcturus does not need this audio workaround */
-	if (adev->asic_type != CHIP_ARCTURUS) {
-		ret = smu_v11_0_baco_set_armd3_sequence(smu, BACO_SEQ_BACO);
-		if (ret)
-			return ret;
-	}
-
 	ret = smu_v11_0_baco_set_state(smu, SMU_BACO_STATE_ENTER);
 	if (ret)
 		return ret;
-- 
2.29.0