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From: Can Guo <cang@codeaurora.org>
To: asutoshd@codeaurora.org, nguyenb@codeaurora.org,
	hongwus@codeaurora.org, rnayak@codeaurora.org,
	sh425.lee@samsung.com, linux-scsi@vger.kernel.org,
	kernel-team@android.com, saravanak@google.com,
	salyzyn@google.com, cang@codeaurora.org
Cc: Andy Gross <agross@kernel.org>,
	Bjorn Andersson <bjorn.andersson@linaro.org>,
	Alim Akhtar <alim.akhtar@samsung.com>,
	Avri Altman <avri.altman@wdc.com>,
	"James E.J. Bottomley" <jejb@linux.ibm.com>,
	"Martin K. Petersen" <martin.petersen@oracle.com>,
	linux-arm-msm@vger.kernel.org (open list:ARM/QUALCOMM SUPPORT),
	linux-kernel@vger.kernel.org (open list)
Subject: [PATCH v7 3/8] scsi: ufs-qcom: Remove testbus dump in ufs_qcom_dump_dbg_regs
Date: Mon, 27 Jul 2020 22:00:54 -0700
Message-ID: <1595912460-8860-4-git-send-email-cang@codeaurora.org> (raw)
In-Reply-To: <1595912460-8860-1-git-send-email-cang@codeaurora.org>

Dumping testbus registers is heavy enough to cause stability issues
sometime, just remove them as of now.

Signed-off-by: Can Guo <cang@codeaurora.org>
---
 drivers/scsi/ufs/ufs-qcom.c | 32 --------------------------------
 1 file changed, 32 deletions(-)

diff --git a/drivers/scsi/ufs/ufs-qcom.c b/drivers/scsi/ufs/ufs-qcom.c
index 7da27ee..96e0999 100644
--- a/drivers/scsi/ufs/ufs-qcom.c
+++ b/drivers/scsi/ufs/ufs-qcom.c
@@ -1620,44 +1620,12 @@ int ufs_qcom_testbus_config(struct ufs_qcom_host *host)
 	return 0;
 }
 
-static void ufs_qcom_testbus_read(struct ufs_hba *hba)
-{
-	ufshcd_dump_regs(hba, UFS_TEST_BUS, 4, "UFS_TEST_BUS ");
-}
-
-static void ufs_qcom_print_unipro_testbus(struct ufs_hba *hba)
-{
-	struct ufs_qcom_host *host = ufshcd_get_variant(hba);
-	u32 *testbus = NULL;
-	int i, nminor = 256, testbus_len = nminor * sizeof(u32);
-
-	testbus = kmalloc(testbus_len, GFP_KERNEL);
-	if (!testbus)
-		return;
-
-	host->testbus.select_major = TSTBUS_UNIPRO;
-	for (i = 0; i < nminor; i++) {
-		host->testbus.select_minor = i;
-		ufs_qcom_testbus_config(host);
-		testbus[i] = ufshcd_readl(hba, UFS_TEST_BUS);
-	}
-	print_hex_dump(KERN_ERR, "UNIPRO_TEST_BUS ", DUMP_PREFIX_OFFSET,
-			16, 4, testbus, testbus_len, false);
-	kfree(testbus);
-}
-
 static void ufs_qcom_dump_dbg_regs(struct ufs_hba *hba)
 {
 	ufshcd_dump_regs(hba, REG_UFS_SYS1CLK_1US, 16 * 4,
 			 "HCI Vendor Specific Registers ");
 
-	/* sleep a bit intermittently as we are dumping too much data */
 	ufs_qcom_print_hw_debug_reg_all(hba, NULL, ufs_qcom_dump_regs_wrapper);
-	udelay(1000);
-	ufs_qcom_testbus_read(hba);
-	udelay(1000);
-	ufs_qcom_print_unipro_testbus(hba);
-	udelay(1000);
 }
 
 /**
-- 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project.


  parent reply index

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-28  5:00 [PATCH v7 0/8] Fix up and simplify error recovery mechanism Can Guo
2020-07-28  5:00 ` [PATCH v7 1/8] scsi: ufs: Add checks before setting clk-gating states Can Guo
2020-07-29  6:47   ` Stanley Chu
2020-07-28  5:00 ` [PATCH v7 2/8] ufs: ufs-qcom: Fix race conditions caused by func ufs_qcom_testbus_config Can Guo
2020-07-28  5:00 ` Can Guo [this message]
2020-07-28  5:32   ` [PATCH v7 3/8] scsi: ufs-qcom: Remove testbus dump in ufs_qcom_dump_dbg_regs hongwus
2020-07-28  7:53   ` Avri Altman
2020-07-28  5:00 ` [PATCH v7 4/8] scsi: ufs: Add some debug infos to ufshcd_print_host_state Can Guo
2020-07-28  5:32   ` hongwus
2020-07-28 18:01   ` Asutosh Das (asd)
2020-07-29  7:00   ` Stanley Chu
2020-07-28  5:00 ` [PATCH v7 5/8] scsi: ufs: Fix concurrency of error handler and other error recovery paths Can Guo
2020-07-28  5:00 ` [PATCH v7 6/8] scsi: ufs: Recover hba runtime PM error in error handler Can Guo
2020-07-28  5:00 ` [PATCH v7 7/8] scsi: ufs: Move dumps in IRQ handler to " Can Guo
2020-07-28 18:06   ` Asutosh Das (asd)
2020-07-29 13:02     ` Can Guo
2020-07-29 22:45       ` Asutosh Das (asd)
2020-07-28  5:00 ` [PATCH v7 8/8] scsi: ufs: Fix a racing problem btw error handler and runtime PM ops Can Guo
2020-07-28 21:44 ` [PATCH v7 0/8] Fix up and simplify error recovery mechanism Bean Huo

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