linux-kernel - [PATCH for-next 7/9] RDMA/hns: Fix 1bit-ECC recovery address in non-4K OS

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Message-ID: <20240906093444.3571619-8-huangjunxian6@hisilicon.com>
Date: Fri, 6 Sep 2024 17:34:42 +0800
From: Junxian Huang <huangjunxian6@...ilicon.com>
To: <jgg@...pe.ca>, <leon@...nel.org>
CC: <linux-rdma@...r.kernel.org>, <linuxarm@...wei.com>,
	<linux-kernel@...r.kernel.org>, <huangjunxian6@...ilicon.com>
Subject: [PATCH for-next 7/9] RDMA/hns: Fix 1bit-ECC recovery address in non-4K OS

From: Chengchang Tang <tangchengchang@...wei.com>

The 1bit-ECC recovery address read from HW only contain bits 64:12, so
it should be fixed left-shifted 12 bits when used.

Currently, the driver will shift the address left by PAGE_SHIFT when
used, which is wrong in non-4K OS.

Fixes: 2de949abd6a5 ("RDMA/hns: Recover 1bit-ECC error of RAM on chip")
Signed-off-by: Chengchang Tang <tangchengchang@...wei.com>
Signed-off-by: Junxian Huang <huangjunxian6@...ilicon.com>
---
 drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
index 74bab07c10e5..085461713fa9 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
+++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c
@@ -6288,7 +6288,7 @@ static u64 fmea_get_ram_res_addr(u32 res_type, __le64 *data)
 	    res_type == ECC_RESOURCE_SCCC)
 		return le64_to_cpu(*data);
 
-	return le64_to_cpu(*data) << PAGE_SHIFT;
+	return le64_to_cpu(*data) << HNS_HW_PAGE_SHIFT;
 }
 
 static int fmea_recover_others(struct hns_roce_dev *hr_dev, u32 res_type,
-- 
2.33.0