[PATCH 2/2] drm/amd/pm: populate Arcturus PCIE link state

[Evan Quan]

Populate current link speed, width and clock domain frequency.

Change-Id: Ic342fbd8f5e2495d212eaa4b85b4e146838e0525
Signed-off-by: Evan Quan <evan.quan at amd.com>
---
 drivers/gpu/drm/amd/pm/amdgpu_pm.c             |  3 ---
 .../gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c  | 18 ++++++++++++++++++
 2 files changed, 18 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/pm/amdgpu_pm.c b/drivers/gpu/drm/amd/pm/amdgpu_pm.c
index 46eea3f8f958..f87411cfa4da 100644
--- a/drivers/gpu/drm/amd/pm/amdgpu_pm.c
+++ b/drivers/gpu/drm/amd/pm/amdgpu_pm.c
@@ -2124,9 +2124,6 @@ static int default_attr_update(struct amdgpu_device *adev, struct amdgpu_device_
 	} else if (DEVICE_ATTR_IS(pp_dpm_fclk)) {
 		if (asic_type < CHIP_VEGA20)
 			*states = ATTR_STATE_UNSUPPORTED;
-	} else if (DEVICE_ATTR_IS(pp_dpm_pcie)) {
-		if (asic_type == CHIP_ARCTURUS)
-			*states = ATTR_STATE_UNSUPPORTED;
 	} else if (DEVICE_ATTR_IS(pp_od_clk_voltage)) {
 		*states = ATTR_STATE_UNSUPPORTED;
 		if ((is_support_sw_smu(adev) && adev->smu.od_enabled) ||
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c
index f982b9090d7b..46d950757230 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/arcturus_ppt.c
@@ -720,6 +720,7 @@ static int arcturus_print_clk_levels(struct smu_context *smu,
 	struct smu_11_0_dpm_table *single_dpm_table;
 	struct smu_dpm_context *smu_dpm = &smu->smu_dpm;
 	struct smu_11_0_dpm_context *dpm_context = NULL;
+	uint32_t gen_speed, lane_width;
 
 	if (amdgpu_ras_intr_triggered())
 		return snprintf(buf, PAGE_SIZE, "unavailable\n");
@@ -823,6 +824,23 @@ static int arcturus_print_clk_levels(struct smu_context *smu,
 				now) ? "*" : ""));
 		break;
 
+	case SMU_PCIE:
+		gen_speed = smu_v11_0_get_current_pcie_link_speed_level(smu);
+		lane_width = smu_v11_0_get_current_pcie_link_width_level(smu);
+		size += sprintf(buf + size, "0: %s %s %dMhz *\n",
+				(gen_speed == 0) ? "2.5GT/s," :
+				(gen_speed == 1) ? "5.0GT/s," :
+				(gen_speed == 2) ? "8.0GT/s," :
+				(gen_speed == 3) ? "16.0GT/s," : "",
+				(lane_width == 1) ? "x1" :
+				(lane_width == 2) ? "x2" :
+				(lane_width == 3) ? "x4" :
+				(lane_width == 4) ? "x8" :
+				(lane_width == 5) ? "x12" :
+				(lane_width == 6) ? "x16" : "",
+				smu->smu_table.boot_values.lclk / 100);
+		break;
+
 	default:
 		break;
 	}
-- 
2.28.0