Add support to dump HW and SW hibern8 enter and exit counts to
enhance the debugging of hibern8 state transitions.
Signed-off-by: Manish Pandey <quic_mapa@xxxxxxxxxxx>
---
drivers/ufs/host/ufs-qcom.c | 9 +++++++++
drivers/ufs/host/ufs-qcom.h | 9 +++++++++
2 files changed, 18 insertions(+)
diff --git a/drivers/ufs/host/ufs-qcom.c b/drivers/ufs/host/ufs-qcom.c
index 23b9f6efa047..028833acb3db 100644
--- a/drivers/ufs/host/ufs-qcom.c
+++ b/drivers/ufs/host/ufs-qcom.c
@@ -1549,6 +1549,15 @@ static void ufs_qcom_dump_dbg_regs(struct ufs_hba *hba)
host = ufshcd_get_variant(hba);
+ dev_err(hba->dev, "HW_H8_ENTER_CNT=%d\n", ufshcd_readl(hba, REG_UFS_HW_H8_ENTER_CNT));
+ dev_err(hba->dev, "HW_H8_EXIT_CNT=%d\n", ufshcd_readl(hba, REG_UFS_HW_H8_EXIT_CNT));
+
+ dev_err(hba->dev, "SW_H8_ENTER_CNT=%d\n", ufshcd_readl(hba, REG_UFS_SW_H8_ENTER_CNT));
+ dev_err(hba->dev, "SW_H8_EXIT_CNT=%d\n", ufshcd_readl(hba, REG_UFS_SW_H8_EXIT_CNT));
+
+ dev_err(hba->dev, "SW_AFTER_HW_H8_ENTER_CNT=%d\n",
+ ufshcd_readl(hba, REG_UFS_SW_AFTER_HW_H8_ENTER_CNT));
+
ufshcd_dump_regs(hba, REG_UFS_SYS1CLK_1US, 16 * 4,
"HCI Vendor Specific Registers ");
diff --git a/drivers/ufs/host/ufs-qcom.h b/drivers/ufs/host/ufs-qcom.h
index 919f53682beb..a5bf1282ddbe 100644
--- a/drivers/ufs/host/ufs-qcom.h
+++ b/drivers/ufs/host/ufs-qcom.h
@@ -72,6 +72,15 @@ enum {
UFS_UFS_DBG_RD_EDTL_RAM = 0x1900,
};
+/* QCOM UFS HC vendor specific Hibern8 count registers */
+enum {
+ REG_UFS_HW_H8_ENTER_CNT = 0x2700,
+ REG_UFS_SW_H8_ENTER_CNT = 0x2704,
+ REG_UFS_SW_AFTER_HW_H8_ENTER_CNT = 0x2708,
+ REG_UFS_HW_H8_EXIT_CNT = 0x270C,
+ REG_UFS_SW_H8_EXIT_CNT = 0x2710,
+};
+
enum {
UFS_MEM_CQIS_VS = 0x8,
};
--
2.17.1
