This is a note to let you know that I've just added the patch titled
accel/habanalabs: add support for Gaudi2C device
to the 6.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
accel-habanalabs-add-support-for-gaudi2c-device.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 71b32114f6126059cf6f04c91375c686f683fe20
Author: Oded Gabbay <ogabbay@xxxxxxxxxx>
Date: Mon Oct 30 12:23:57 2023 +0200
accel/habanalabs: add support for Gaudi2C device
[ Upstream commit 42422993cf28d456778ee9168d73758ec037cd51 ]
Gaudi2 with PCI revision ID with the value of '3' represents Gaudi2C
device and should be detected and initialized as Gaudi2.
Signed-off-by: Oded Gabbay <ogabbay@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/accel/habanalabs/common/device.c b/drivers/accel/habanalabs/common/device.c
index b97339d1f7c6..ebef56478e18 100644
--- a/drivers/accel/habanalabs/common/device.c
+++ b/drivers/accel/habanalabs/common/device.c
@@ -808,6 +808,9 @@ static int device_early_init(struct hl_device *hdev)
gaudi2_set_asic_funcs(hdev);
strscpy(hdev->asic_name, "GAUDI2B", sizeof(hdev->asic_name));
break;
+ case ASIC_GAUDI2C:
+ gaudi2_set_asic_funcs(hdev);
+ strscpy(hdev->asic_name, "GAUDI2C", sizeof(hdev->asic_name));
break;
default:
dev_err(hdev->dev, "Unrecognized ASIC type %d\n",
diff --git a/drivers/accel/habanalabs/common/habanalabs.h b/drivers/accel/habanalabs/common/habanalabs.h
index 2f027d5a8206..05febd5b14e9 100644
--- a/drivers/accel/habanalabs/common/habanalabs.h
+++ b/drivers/accel/habanalabs/common/habanalabs.h
@@ -1220,6 +1220,7 @@ struct hl_dec {
* @ASIC_GAUDI_SEC: Gaudi secured device (HL-2000).
* @ASIC_GAUDI2: Gaudi2 device.
* @ASIC_GAUDI2B: Gaudi2B device.
+ * @ASIC_GAUDI2C: Gaudi2C device.
*/
enum hl_asic_type {
ASIC_INVALID,
@@ -1228,6 +1229,7 @@ enum hl_asic_type {
ASIC_GAUDI_SEC,
ASIC_GAUDI2,
ASIC_GAUDI2B,
+ ASIC_GAUDI2C,
};
struct hl_cs_parser;
diff --git a/drivers/accel/habanalabs/common/habanalabs_drv.c b/drivers/accel/habanalabs/common/habanalabs_drv.c
index 7263e84c1a4d..010bf63fcca3 100644
--- a/drivers/accel/habanalabs/common/habanalabs_drv.c
+++ b/drivers/accel/habanalabs/common/habanalabs_drv.c
@@ -101,6 +101,9 @@ static enum hl_asic_type get_asic_type(struct hl_device *hdev)
case REV_ID_B:
asic_type = ASIC_GAUDI2B;
break;
+ case REV_ID_C:
+ asic_type = ASIC_GAUDI2C;
+ break;
default:
break;
}
diff --git a/drivers/accel/habanalabs/common/mmu/mmu.c b/drivers/accel/habanalabs/common/mmu/mmu.c
index b2145716c605..b654302a68fc 100644
--- a/drivers/accel/habanalabs/common/mmu/mmu.c
+++ b/drivers/accel/habanalabs/common/mmu/mmu.c
@@ -596,6 +596,7 @@ int hl_mmu_if_set_funcs(struct hl_device *hdev)
break;
case ASIC_GAUDI2:
case ASIC_GAUDI2B:
+ case ASIC_GAUDI2C:
/* MMUs in Gaudi2 are always host resident */
hl_mmu_v2_hr_set_funcs(hdev, &hdev->mmu_func[MMU_HR_PGT]);
break;
diff --git a/drivers/accel/habanalabs/common/sysfs.c b/drivers/accel/habanalabs/common/sysfs.c
index 01f89f029355..278606373055 100644
--- a/drivers/accel/habanalabs/common/sysfs.c
+++ b/drivers/accel/habanalabs/common/sysfs.c
@@ -251,6 +251,9 @@ static ssize_t device_type_show(struct device *dev,
case ASIC_GAUDI2B:
str = "GAUDI2B";
break;
+ case ASIC_GAUDI2C:
+ str = "GAUDI2C";
+ 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 f5d497dc9bdc..4f951cada077 100644
--- a/drivers/accel/habanalabs/include/hw_ip/pci/pci_general.h
+++ b/drivers/accel/habanalabs/include/hw_ip/pci/pci_general.h
@@ -25,6 +25,7 @@ enum hl_revision_id {
REV_ID_INVALID = 0x00,
REV_ID_A = 0x01,
REV_ID_B = 0x02,
+ REV_ID_C = 0x03
};
#endif /* INCLUDE_PCI_GENERAL_H_ */
