From 4a93e45a5e547318c04c32061132008496bef061 Mon Sep 17 00:00:00 2001
From: Evan Quan <evan.quan@amd.com>
Date: Sat, 9 May 2020 13:49:26 +0800
Subject: drm/amd/powerplay: shutdown on HW CTF
Git-commit: e528ccf9320c3634395e39d467bb6daed3bec4e8
Patch-mainline: v5.8-rc1
References: jsc#SLE-12680, jsc#SLE-12880, jsc#SLE-12882, jsc#SLE-12883, jsc#SLE-13496, jsc#SLE-15322

To prevent further damage.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
 .../gpu/drm/amd/powerplay/hwmgr/smu_helper.c  | 16 +++++++++++++--
 drivers/gpu/drm/amd/powerplay/smu_v11_0.c     | 20 ++++++++++++++++++-
 2 files changed, 33 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/smu_helper.c b/drivers/gpu/drm/amd/powerplay/hwmgr/smu_helper.c
index 782f6d295202..4279f95ba779 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu_helper.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu_helper.c
@@ -612,11 +612,17 @@ int phm_irq_process(struct amdgpu_device *adev,
 					PCI_BUS_NUM(adev->pdev->devfn),
 					PCI_SLOT(adev->pdev->devfn),
 					PCI_FUNC(adev->pdev->devfn));
-		else if (src_id == VISLANDS30_IV_SRCID_GPIO_19)
+		else if (src_id == VISLANDS30_IV_SRCID_GPIO_19) {
 			pr_warn("GPU Critical Temperature Fault detected on PCIe %d:%d.%d!\n",
 					PCI_BUS_NUM(adev->pdev->devfn),
 					PCI_SLOT(adev->pdev->devfn),
 					PCI_FUNC(adev->pdev->devfn));
+			/*
+			 * HW CTF just occurred. Shutdown to prevent further damage.
+			 */
+			dev_emerg(adev->dev, "System is going to shutdown due to HW CTF!\n");
+			orderly_poweroff(true);
+		}
 	} else if (client_id == SOC15_IH_CLIENTID_THM) {
 		if (src_id == 0) {
 			pr_warn("GPU over temperature range detected on PCIe %d:%d.%d!\n",
@@ -634,11 +640,17 @@ int phm_irq_process(struct amdgpu_device *adev,
 					PCI_BUS_NUM(adev->pdev->devfn),
 					PCI_SLOT(adev->pdev->devfn),
 					PCI_FUNC(adev->pdev->devfn));
-	} else if (client_id == SOC15_IH_CLIENTID_ROM_SMUIO)
+	} else if (client_id == SOC15_IH_CLIENTID_ROM_SMUIO) {
 		pr_warn("GPU Critical Temperature Fault detected on PCIe %d:%d.%d!\n",
 				PCI_BUS_NUM(adev->pdev->devfn),
 				PCI_SLOT(adev->pdev->devfn),
 				PCI_FUNC(adev->pdev->devfn));
+		/*
+		 * HW CTF just occurred. Shutdown to prevent further damage.
+		 */
+		dev_emerg(adev->dev, "System is going to shutdown due to HW CTF!\n");
+		orderly_poweroff(true);
+	}
 
 	return 0;
 }
diff --git a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
index 15a03a2ddde5..72a69170f6be 100644
--- a/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
+++ b/drivers/gpu/drm/amd/powerplay/smu_v11_0.c
@@ -1548,6 +1548,8 @@ static int smu_v11_0_ack_ac_dc_interrupt(struct smu_context *smu)
 #define THM_11_0__SRCID__THM_DIG_THERM_L2H		0		/* ASIC_TEMP > CG_THERMAL_INT.DIG_THERM_INTH  */
 #define THM_11_0__SRCID__THM_DIG_THERM_H2L		1		/* ASIC_TEMP < CG_THERMAL_INT.DIG_THERM_INTL  */
 
+#define SMUIO_11_0__SRCID__SMUIO_GPIO19			83
+
 static int smu_v11_0_irq_process(struct amdgpu_device *adev,
 				 struct amdgpu_irq_src *source,
 				 struct amdgpu_iv_entry *entry)
@@ -1582,8 +1584,17 @@ static int smu_v11_0_irq_process(struct amdgpu_device *adev,
 				PCI_SLOT(adev->pdev->devfn),
 				PCI_FUNC(adev->pdev->devfn));
 		break;
-
 		}
+	} else if (client_id == SOC15_IH_CLIENTID_ROM_SMUIO) {
+		pr_warn("GPU Critical Temperature Fault detected on PCIe %d:%d.%d!\n",
+				PCI_BUS_NUM(adev->pdev->devfn),
+				PCI_SLOT(adev->pdev->devfn),
+				PCI_FUNC(adev->pdev->devfn));
+		/*
+		 * HW CTF just occurred. Shutdown to prevent further damage.
+		 */
+		dev_emerg(adev->dev, "System is going to shutdown due to HW CTF!\n");
+		orderly_poweroff(true);
 	} else if (client_id == SOC15_IH_CLIENTID_MP1) {
 		if (src_id == 0xfe)
 			smu_v11_0_ack_ac_dc_interrupt(&adev->smu);
@@ -1626,6 +1637,13 @@ int smu_v11_0_register_irq_handler(struct smu_context *smu)
 	if (ret)
 		return ret;
 
+	/* Register CTF(GPIO_19) interrupt */
+	ret = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_ROM_SMUIO,
+				SMUIO_11_0__SRCID__SMUIO_GPIO19,
+				irq_src);
+	if (ret)
+		return ret;
+
 	ret = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_MP1,
 				0xfe,
 				irq_src);
-- 
2.28.0