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

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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>

Bug: 174590161
Change-Id: I938c89675f8aea312ca12712d40d8761355575fa
(cherry picked from commit ace3804b69
 git://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git 5.11/scsi-staging)
Signed-off-by: Can Guo <cang@codeaurora.org>
This commit is contained in:
Can Guo
2020-12-02 04:04:03 -08:00
committed by Todd Kjos
parent a140164952
commit bc8b26085c
1 changed files with 2 additions and 1 deletions
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3
drivers/scsi/ufs/ufshcd.c
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@@ -6127,7 +6127,8 @@ 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",