Commit 7d21114b authored by Koby Elbaz's avatar Koby Elbaz Committed by Oded Gabbay
Browse files

habanalabs: support DEVICE_UNUSABLE error indication from FW 



In case of multiple ECC errors, FW will set the DEVICE_UNUSABLE bit.
On boot-up, the driver will therefore fail inserting the device.

Signed-off-by: default avatarKoby Elbaz <kelbaz@habana.ai>
Reviewed-by: default avatarOded Gabbay <ogabbay@kernel.org>
Signed-off-by: default avatarOded Gabbay <ogabbay@kernel.org>
parent ae382c22

drivers/misc/habanalabs/common/firmware_if.c

+3 −0
Original line number Diff line number Diff line
@@ -342,6 +342,9 @@ static int fw_read_errors(struct hl_device *hdev, u32 boot_err0_reg, 
		dev_err(hdev->dev, "Device boot error - eFuse failure\n");

	if (err_val & CPU_BOOT_ERR0_PLL_FAIL)

		dev_err(hdev->dev, "Device boot error - PLL failure\n");

	if (err_val & CPU_BOOT_ERR0_DEVICE_UNUSABLE_FAIL)

		dev_err(hdev->dev,

			"Device boot error - device unusable failure\n");



	security_val = RREG32(cpu_security_boot_status_reg);

	if (security_val & CPU_BOOT_DEV_STS0_ENABLED)

drivers/misc/habanalabs/include/common/hl_boot_if.h

+4 −0
Original line number Diff line number Diff line
@@ -73,6 +73,9 @@ 
 * CPU_BOOT_ERR0_PLL_FAIL		PLL settings failed, meaning that one

 *					of the PLLs remains in REF_CLK

 *

 * CPU_BOOT_ERR0_DEVICE_UNUSABLE_FAIL	Device is unusable and customer support

 *					should be contacted.

 *

 * CPU_BOOT_ERR0_ENABLED		Error registers enabled.

 *					This is a main indication that the

 *					running FW populates the error
@@ -92,6 +95,7 @@ 
#define CPU_BOOT_ERR0_PRI_IMG_VER_FAIL		(1 << 10)

#define CPU_BOOT_ERR0_SEC_IMG_VER_FAIL		(1 << 11)

#define CPU_BOOT_ERR0_PLL_FAIL			(1 << 12)

#define CPU_BOOT_ERR0_DEVICE_UNUSABLE_FAIL	(1 << 13)

#define CPU_BOOT_ERR0_ENABLED			(1 << 31)



/*