scsi: ufs: Print host regs in IRQ handler when AH8 error happens

Dump registers and states prior to leaving IRQ handler when an AH8 error
occurs.

Link: https://lore.kernel.org/r/1606910644-21185-4-git-send-email-cang@codeaurora.org
Reviewed-by: Stanley Chu <stanley.chu@mediatek.com>
Reviewed-by: Bao D. Nguyen <nguyenb@codeaurora.org>
Reviewed-by: Asutosh Das <asutoshd@codeaurora.org>
Reviewed-by: Hongwu Su <hongwus@codeaurora.org>
Signed-off-by: Can Guo <cang@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c
index d94a376bb194ad3ea675cf1a19c7cc76c4e5b151..e754191dbf5fa1ba40b70070139e8a2ff7e2b400 100644 (file)
--- a/drivers/scsi/ufs/ufshcd.c
+++ b/drivers/scsi/ufs/ufshcd.c
@@ -6112,7 +6112,8 @@ static irqreturn_t ufshcd_check_errors(struct ufs_hba *hba)
                hba->saved_uic_err |= hba->uic_error;
 
                /* dump controller state before resetting */
-               if ((hba->saved_err & (INT_FATAL_ERRORS)) ||
+               if ((hba->saved_err &
+                    (INT_FATAL_ERRORS | UFSHCD_UIC_HIBERN8_MASK)) ||
                    (hba->saved_uic_err &&
                     (hba->saved_uic_err != UFSHCD_UIC_PA_GENERIC_ERROR))) {
                        dev_err(hba->dev, "%s: saved_err 0x%x saved_uic_err 0x%x\n",