linux-kernel - [PATCH 4/8] accel/habanalabs: add cpld ts cpld

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Date: Mon, 27 May 2024 18:02:20 +0300
From: Ofir Bitton <obitton@...ana.ai>
To: dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Cc: Vitaly Margolin <vmargolin@...ana.ai>
Subject: [PATCH 4/8] accel/habanalabs: add cpld ts cpld_timestamp cpucp

From: Vitaly Margolin <vmargolin@...ana.ai>

Add cpld_timestamp field to cpucp_info structure and return cpld
timestamp as part of cpld version

Signed-off-by: Vitaly Margolin <vmargolin@...ana.ai>
Reviewed-by: Ofir Bitton <obitton@...ana.ai>
---
 drivers/accel/habanalabs/common/sysfs.c | 5 +++--
 include/linux/habanalabs/cpucp_if.h     | 3 ++-
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/accel/habanalabs/common/sysfs.c b/drivers/accel/habanalabs/common/sysfs.c
index b6c63f8a0c1b..e9f8ccc0bbf9 100644
--- a/drivers/accel/habanalabs/common/sysfs.c
+++ b/drivers/accel/habanalabs/common/sysfs.c
@@ -142,8 +142,9 @@ static ssize_t cpld_ver_show(struct device *dev, struct device_attribute *attr,
 {
 	struct hl_device *hdev = dev_get_drvdata(dev);
 
-	return sprintf(buf, "0x%08x\n",
-			le32_to_cpu(hdev->asic_prop.cpucp_info.cpld_version));
+	return sprintf(buf, "0x%08x%08x\n",
+		le32_to_cpu(hdev->asic_prop.cpucp_info.cpld_timestamp),
+		le32_to_cpu(hdev->asic_prop.cpucp_info.cpld_version));
 }
 
 static ssize_t cpucp_kernel_ver_show(struct device *dev,
diff --git a/include/linux/habanalabs/cpucp_if.h b/include/linux/habanalabs/cpucp_if.h
index 0913415243e8..1ed17887f1a8 100644
--- a/include/linux/habanalabs/cpucp_if.h
+++ b/include/linux/habanalabs/cpucp_if.h
@@ -1146,6 +1146,7 @@ struct cpucp_security_info {
  *                (0 = fully functional, 1 = lower-half is not functional,
  *                 2 = upper-half is not functional)
  * @sec_info: security information
+ * @cpld_timestamp: CPLD programmed F/W timestamp.
  * @pll_map: Bit map of supported PLLs for current ASIC version.
  * @mme_binning_mask: MME binning mask,
  *                    bits [0:6]   <==> dcore0 mme fma
@@ -1193,7 +1194,7 @@ struct cpucp_info {
 	__u8 substrate_version;
 	__u8 eq_health_check_supported;
 	struct cpucp_security_info sec_info;
-	__le32 reserved2;
+	__le32 cpld_timestamp;
 	__u8 pll_map[PLL_MAP_LEN];
 	__le64 mme_binning_mask;
 	__u8 fw_os_version[VERSION_MAX_LEN];
-- 
2.34.1