From: Rex Zhu <Rex.Zhu@amd.com>
Date: Wed, 3 Jan 2018 17:05:35 +0800
Subject: drm/amd/pp: Implement voltage regulator config on CI
Git-commit: 53241e01b985ab284261c9096a435291eece1169
Patch-mainline: v4.17-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

Store the voltage regulator configuration
so we can properly query the voltage

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/amd/powerplay/inc/smu7.h          |   19 +++++++++++
 drivers/gpu/drm/amd/powerplay/inc/smu7_discrete.h |    3 +
 drivers/gpu/drm/amd/powerplay/smumgr/ci_smumgr.c  |   37 ++++++++++++++++++++++
 3 files changed, 58 insertions(+), 1 deletion(-)

--- a/drivers/gpu/drm/amd/powerplay/inc/smu7.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/smu7.h
@@ -82,6 +82,25 @@
 #define SCRATCH_B_CURR_SAMU_INDEX_MASK  (0x7<<SCRATCH_B_CURR_SAMU_INDEX_SHIFT)
 
 
+/* Voltage Regulator Configuration */
+/* VR Config info is contained in dpmTable */
+
+#define VRCONF_VDDC_MASK         0x000000FF
+#define VRCONF_VDDC_SHIFT        0
+#define VRCONF_VDDGFX_MASK       0x0000FF00
+#define VRCONF_VDDGFX_SHIFT      8
+#define VRCONF_VDDCI_MASK        0x00FF0000
+#define VRCONF_VDDCI_SHIFT       16
+#define VRCONF_MVDD_MASK         0xFF000000
+#define VRCONF_MVDD_SHIFT        24
+
+#define VR_MERGED_WITH_VDDC      0
+#define VR_SVI2_PLANE_1          1
+#define VR_SVI2_PLANE_2          2
+#define VR_SMIO_PATTERN_1        3
+#define VR_SMIO_PATTERN_2        4
+#define VR_STATIC_VOLTAGE        5
+
 struct SMU7_PIDController
 {
     uint32_t Ki;
--- a/drivers/gpu/drm/amd/powerplay/inc/smu7_discrete.h
+++ b/drivers/gpu/drm/amd/powerplay/inc/smu7_discrete.h
@@ -316,7 +316,8 @@ struct SMU7_Discrete_DpmTable
     uint8_t                             AcpLevelCount;
     uint8_t                             SamuLevelCount;
     uint8_t                             MasterDeepSleepControl;
-    uint32_t                            Reserved[5];
+    uint32_t                            VRConfig;
+    uint32_t                            Reserved[4];
 //    uint32_t                            SamuDefaultLevel;
 
     SMU7_Discrete_GraphicsLevel         GraphicsLevel           [SMU7_MAX_LEVELS_GRAPHICS];
--- a/drivers/gpu/drm/amd/powerplay/smumgr/ci_smumgr.c
+++ b/drivers/gpu/drm/amd/powerplay/smumgr/ci_smumgr.c
@@ -1941,6 +1941,37 @@ static int ci_start_smc(struct pp_hwmgr
 	return 0;
 }
 
+static int ci_populate_vr_config(struct pp_hwmgr *hwmgr, SMU7_Discrete_DpmTable *table)
+{
+	struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);
+	uint16_t config;
+
+	config = VR_SVI2_PLANE_1;
+	table->VRConfig |= (config<<VRCONF_VDDGFX_SHIFT);
+
+	if (SMU7_VOLTAGE_CONTROL_BY_SVID2 == data->voltage_control) {
+		config = VR_SVI2_PLANE_2;
+		table->VRConfig |= config;
+	} else {
+		pr_info("VDDCshould be on SVI2 controller!");
+	}
+
+	if (SMU7_VOLTAGE_CONTROL_BY_SVID2 == data->vddci_control) {
+		config = VR_SVI2_PLANE_2;
+		table->VRConfig |= (config<<VRCONF_VDDCI_SHIFT);
+	} else if (SMU7_VOLTAGE_CONTROL_BY_GPIO == data->vddci_control) {
+		config = VR_SMIO_PATTERN_1;
+		table->VRConfig |= (config<<VRCONF_VDDCI_SHIFT);
+	}
+
+	if (SMU7_VOLTAGE_CONTROL_BY_GPIO == data->mvdd_control) {
+		config = VR_SMIO_PATTERN_2;
+		table->VRConfig |= (config<<VRCONF_MVDD_SHIFT);
+	}
+
+	return 0;
+}
+
 static int ci_init_smc_table(struct pp_hwmgr *hwmgr)
 {
 	int result;
@@ -2064,6 +2095,11 @@ static int ci_init_smc_table(struct pp_h
 	table->PCIeBootLinkLevel = (uint8_t)data->dpm_table.pcie_speed_table.count;
 	table->PCIeGenInterval = 1;
 
+	result = ci_populate_vr_config(hwmgr, table);
+	PP_ASSERT_WITH_CODE(0 == result,
+			"Failed to populate VRConfig setting!", return result);
+	data->vr_config = table->VRConfig;
+
 	ci_populate_smc_svi2_config(hwmgr, table);
 
 	for (i = 0; i < SMU7_MAX_ENTRIES_SMIO; i++)
@@ -2084,6 +2120,7 @@ static int ci_init_smc_table(struct pp_h
 	table->AcDcGpio = SMU7_UNUSED_GPIO_PIN;
 
 	CONVERT_FROM_HOST_TO_SMC_UL(table->SystemFlags);
+	CONVERT_FROM_HOST_TO_SMC_UL(table->VRConfig);
 	CONVERT_FROM_HOST_TO_SMC_UL(table->SmioMaskVddcVid);
 	CONVERT_FROM_HOST_TO_SMC_UL(table->SmioMaskVddcPhase);
 	CONVERT_FROM_HOST_TO_SMC_UL(table->SmioMaskVddciVid);