linux-kernel - [PATCH 1/8] accel/habanalabs/gaudi2: add GAUDI2D revision support

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Date: Mon, 27 May 2024 18:02:17 +0300
From: Ofir Bitton <obitton@...ana.ai>
To: dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Cc: Farah Kassabri <fkassabri@...ana.ai>
Subject: [PATCH 1/8] accel/habanalabs/gaudi2: add GAUDI2D revision support

From: Farah Kassabri <fkassabri@...ana.ai>

Gaudi2 with PCI revision ID with the value of '4' represents Gaudi2D
device and should be detected and initialized as Gaudi2.

Signed-off-by: Farah Kassabri <fkassabri@...ana.ai>
Reviewed-by: Ofir Bitton <obitton@...ana.ai>
---
 drivers/accel/habanalabs/common/device.c                 | 4 ++++
 drivers/accel/habanalabs/common/habanalabs.h             | 3 +++
 drivers/accel/habanalabs/common/habanalabs_drv.c         | 3 +++
 drivers/accel/habanalabs/common/mmu/mmu.c                | 1 +
 drivers/accel/habanalabs/common/sysfs.c                  | 3 +++
 drivers/accel/habanalabs/include/hw_ip/pci/pci_general.h | 3 ++-
 6 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/drivers/accel/habanalabs/common/device.c b/drivers/accel/habanalabs/common/device.c
index f9b8601c4396..fd117489a05a 100644
--- a/drivers/accel/habanalabs/common/device.c
+++ b/drivers/accel/habanalabs/common/device.c
@@ -862,6 +862,10 @@ static int device_early_init(struct hl_device *hdev)
 		gaudi2_set_asic_funcs(hdev);
 		strscpy(hdev->asic_name, "GAUDI2C", sizeof(hdev->asic_name));
 		break;
+	case ASIC_GAUDI2D:
+		gaudi2_set_asic_funcs(hdev);
+		strscpy(hdev->asic_name, "GAUDI2D", sizeof(hdev->asic_name));
+		break;
 	default:
 		dev_err(hdev->dev, "Unrecognized ASIC type %d\n",
 			hdev->asic_type);
diff --git a/drivers/accel/habanalabs/common/habanalabs.h b/drivers/accel/habanalabs/common/habanalabs.h
index 057087dc8592..0d16b5310add 100644
--- a/drivers/accel/habanalabs/common/habanalabs.h
+++ b/drivers/accel/habanalabs/common/habanalabs.h
@@ -1273,15 +1273,18 @@ struct hl_dec {
  * @ASIC_GAUDI2: Gaudi2 device.
  * @ASIC_GAUDI2B: Gaudi2B device.
  * @ASIC_GAUDI2C: Gaudi2C device.
+ * @ASIC_GAUDI2D: Gaudi2D device.
  */
 enum hl_asic_type {
 	ASIC_INVALID,
+
 	ASIC_GOYA,
 	ASIC_GAUDI,
 	ASIC_GAUDI_SEC,
 	ASIC_GAUDI2,
 	ASIC_GAUDI2B,
 	ASIC_GAUDI2C,
+	ASIC_GAUDI2D,
 };
 
 struct hl_cs_parser;
diff --git a/drivers/accel/habanalabs/common/habanalabs_drv.c b/drivers/accel/habanalabs/common/habanalabs_drv.c
index e542fd40e16c..b1613a82c7f2 100644
--- a/drivers/accel/habanalabs/common/habanalabs_drv.c
+++ b/drivers/accel/habanalabs/common/habanalabs_drv.c
@@ -144,6 +144,9 @@ static enum hl_asic_type get_asic_type(struct hl_device *hdev)
 		case REV_ID_C:
 			asic_type = ASIC_GAUDI2C;
 			break;
+		case REV_ID_D:
+			asic_type = ASIC_GAUDI2D;
+			break;
 		default:
 			break;
 		}
diff --git a/drivers/accel/habanalabs/common/mmu/mmu.c b/drivers/accel/habanalabs/common/mmu/mmu.c
index a9813ffcde14..79823facce7f 100644
--- a/drivers/accel/habanalabs/common/mmu/mmu.c
+++ b/drivers/accel/habanalabs/common/mmu/mmu.c
@@ -600,6 +600,7 @@ int hl_mmu_if_set_funcs(struct hl_device *hdev)
 	case ASIC_GAUDI2:
 	case ASIC_GAUDI2B:
 	case ASIC_GAUDI2C:
+	case ASIC_GAUDI2D:
 		hl_mmu_v2_set_funcs(hdev, &hdev->mmu_func[MMU_DR_PGT]);
 		if (prop->pmmu.host_resident)
 			hl_mmu_v2_hr_set_funcs(hdev, &hdev->mmu_func[MMU_HR_PGT]);
diff --git a/drivers/accel/habanalabs/common/sysfs.c b/drivers/accel/habanalabs/common/sysfs.c
index 8a9f98832157..b6c63f8a0c1b 100644
--- a/drivers/accel/habanalabs/common/sysfs.c
+++ b/drivers/accel/habanalabs/common/sysfs.c
@@ -270,6 +270,9 @@ static ssize_t device_type_show(struct device *dev,
 	case ASIC_GAUDI2C:
 		str = "GAUDI2C";
 		break;
+	case ASIC_GAUDI2D:
+		str = "GAUDI2D";
+		break;
 	default:
 		dev_err(hdev->dev, "Unrecognized ASIC type %d\n",
 				hdev->asic_type);
diff --git a/drivers/accel/habanalabs/include/hw_ip/pci/pci_general.h b/drivers/accel/habanalabs/include/hw_ip/pci/pci_general.h
index 4f951cada077..a75faa00197f 100644
--- a/drivers/accel/habanalabs/include/hw_ip/pci/pci_general.h
+++ b/drivers/accel/habanalabs/include/hw_ip/pci/pci_general.h
@@ -25,7 +25,8 @@ enum hl_revision_id {
 	REV_ID_INVALID				= 0x00,
 	REV_ID_A				= 0x01,
 	REV_ID_B				= 0x02,
-	REV_ID_C				= 0x03
+	REV_ID_C				= 0x03,
+	REV_ID_D				= 0x04
 };
 
 #endif /* INCLUDE_PCI_GENERAL_H_ */
-- 
2.34.1