[PATCH 2/4] drm/amd/powerplay: support Vega10 retrieving and setting ppfeatures

[Evan Quan <evan.quan-5C7GfCeVMHo@public.gmane.org>]

Enable retrieving and setting ppfeatures on Vega10.

Change-Id: I44ea8789ad3c59cfb40a367665a6190f4405610e
Signed-off-by: Evan Quan <evan.quan@amd.com>
---
 .../drm/amd/powerplay/hwmgr/vega10_hwmgr.c    | 101 ++++++++++++++++++
 1 file changed, 101 insertions(+)

diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
index a08e4fa3ae59..f0ba4254361b 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
@@ -4323,6 +4323,105 @@ static int vega10_set_watermarks_for_clocks_ranges(struct pp_hwmgr *hwmgr,
 	return result;
 }
 
+static int vega10_get_ppfeature_status(struct pp_hwmgr *hwmgr, char *buf)
+{
+	static const char *ppfeature_name[] = {
+				"DPM_PREFETCHER",
+				"GFXCLK_DPM",
+				"UCLK_DPM",
+				"SOCCLK_DPM",
+				"UVD_DPM",
+				"VCE_DPM",
+				"ULV",
+				"MP0CLK_DPM",
+				"LINK_DPM",
+				"DCEFCLK_DPM",
+				"AVFS",
+				"GFXCLK_DS",
+				"SOCCLK_DS",
+				"LCLK_DS",
+				"PPT",
+				"TDC",
+				"THERMAL",
+				"GFX_PER_CU_CG",
+				"RM",
+				"DCEFCLK_DS",
+				"ACDC",
+				"VR0HOT",
+				"VR1HOT",
+				"FW_CTF",
+				"LED_DISPLAY",
+				"FAN_CONTROL",
+				"FAST_PPT",
+				"DIDT",
+				"ACG",
+				"PCC_LIMIT"};
+	static const char *output_title[] = {
+				"FEATURES",
+				"BITMASK",
+				"ENABLEMENT"};
+	uint64_t features_enabled;
+	int i;
+	int ret = 0;
+	int size = 0;
+
+	ret = vega10_get_enabled_smc_features(hwmgr, &features_enabled);
+	PP_ASSERT_WITH_CODE(!ret,
+			"[EnableAllSmuFeatures] Failed to get enabled smc features!",
+			return ret);
+
+	size += sprintf(buf + size, "Current ppfeatures: 0x%016llx\n", features_enabled);
+	size += sprintf(buf + size, "%-19s %-22s %s\n",
+				output_title[0],
+				output_title[1],
+				output_title[2]);
+	for (i = 0; i < GNLD_FEATURES_MAX; i++) {
+		size += sprintf(buf + size, "%-19s 0x%016llx %6s\n",
+					ppfeature_name[i],
+					1ULL << i,
+					(features_enabled & (1ULL << i)) ? "Y" : "N");
+	}
+
+	return size;
+}
+
+static int vega10_set_ppfeature_status(struct pp_hwmgr *hwmgr, uint64_t new_ppfeature_masks)
+{
+	uint64_t features_enabled;
+	uint64_t features_to_enable;
+	uint64_t features_to_disable;
+	int ret = 0;
+
+	if (new_ppfeature_masks >= (1ULL << GNLD_FEATURES_MAX))
+		return -EINVAL;
+
+	ret = vega10_get_enabled_smc_features(hwmgr, &features_enabled);
+	if (ret)
+		return ret;
+
+	features_to_disable =
+		(features_enabled ^ new_ppfeature_masks) & features_enabled;
+	features_to_enable =
+		(features_enabled ^ new_ppfeature_masks) ^ features_to_disable;
+
+	pr_debug("features_to_disable 0x%llx\n", features_to_disable);
+	pr_debug("features_to_enable 0x%llx\n", features_to_enable);
+
+	if (features_to_disable) {
+		ret = vega10_enable_smc_features(hwmgr, false, features_to_disable);
+		if (ret)
+			return ret;
+	}
+
+	if (features_to_enable) {
+		ret = vega10_enable_smc_features(hwmgr, true, features_to_enable);
+		if (ret)
+			return ret;
+	}
+
+	return 0;
+}
+
 static int vega10_print_clock_levels(struct pp_hwmgr *hwmgr,
 		enum pp_clock_type type, char *buf)
 {
@@ -5067,6 +5166,8 @@ static const struct pp_hwmgr_func vega10_hwmgr_funcs = {
 	.get_asic_baco_capability = vega10_baco_get_capability,
 	.get_asic_baco_state = vega10_baco_get_state,
 	.set_asic_baco_state = vega10_baco_set_state,
+	.get_ppfeature_status = vega10_get_ppfeature_status,
+	.set_ppfeature_status = vega10_set_ppfeature_status,
 };
 
 int vega10_hwmgr_init(struct pp_hwmgr *hwmgr)
-- 
2.20.1

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