linux-kernel - [PATCH v2 02/15] coresight: Make ETM4x TRCIDR2 register accesses consistent with sysreg.h

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Message-Id: <20220203120604.128396-3-james.clark@arm.com>
Date:   Thu,  3 Feb 2022 12:05:50 +0000
From:   James Clark <james.clark@....com>
To:     suzuki.poulose@....com, mathieu.poirier@...aro.org,
        coresight@...ts.linaro.org
Cc:     leo.yan@...aro.com, mike.leach@...aro.org,
        James Clark <james.clark@....com>,
        Leo Yan <leo.yan@...aro.org>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH v2 02/15] coresight: Make ETM4x TRCIDR2 register accesses consistent with sysreg.h

This is a no-op change for style and consistency and has no effect on the
binary produced by gcc-11.

Signed-off-by: James Clark <james.clark@....com>
---
 drivers/hwtracing/coresight/coresight-etm4x-core.c | 6 +++---
 drivers/hwtracing/coresight/coresight-etm4x.h      | 7 +++++++
 2 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/drivers/hwtracing/coresight/coresight-etm4x-core.c b/drivers/hwtracing/coresight/coresight-etm4x-core.c
index 107e81948f76..891cfcd93f94 100644
--- a/drivers/hwtracing/coresight/coresight-etm4x-core.c
+++ b/drivers/hwtracing/coresight/coresight-etm4x-core.c
@@ -1110,11 +1110,11 @@ static void etm4_init_arch_data(void *info)
 	/* maximum size of resources */
 	etmidr2 = etm4x_relaxed_read32(csa, TRCIDR2);
 	/* CIDSIZE, bits[9:5] Indicates the Context ID size */
-	drvdata->ctxid_size = BMVAL(etmidr2, 5, 9);
+	drvdata->ctxid_size = REG_VAL(etmidr2, TRCIDR2_CIDSIZE);
 	/* VMIDSIZE, bits[14:10] Indicates the VMID size */
-	drvdata->vmid_size = BMVAL(etmidr2, 10, 14);
+	drvdata->vmid_size = REG_VAL(etmidr2, TRCIDR2_VMIDSIZE);
 	/* CCSIZE, bits[28:25] size of the cycle counter in bits minus 12 */
-	drvdata->ccsize = BMVAL(etmidr2, 25, 28);
+	drvdata->ccsize = REG_VAL(etmidr2, TRCIDR2_CCSIZE);
 
 	etmidr3 = etm4x_relaxed_read32(csa, TRCIDR3);
 	/* CCITMIN, bits[11:0] minimum threshold value that can be programmed */
diff --git a/drivers/hwtracing/coresight/coresight-etm4x.h b/drivers/hwtracing/coresight/coresight-etm4x.h
index 2bd8ad953b8e..a95df5686b4b 100644
--- a/drivers/hwtracing/coresight/coresight-etm4x.h
+++ b/drivers/hwtracing/coresight/coresight-etm4x.h
@@ -147,6 +147,13 @@
 #define TRCIDR0_TSSIZE_SHIFT			24
 #define TRCIDR0_TSSIZE_MASK			GENMASK(4, 0)
 
+#define TRCIDR2_CIDSIZE_SHIFT			5
+#define TRCIDR2_CIDSIZE_MASK			GENMASK(4, 0)
+#define TRCIDR2_VMIDSIZE_SHIFT			10
+#define TRCIDR2_VMIDSIZE_MASK			GENMASK(4, 0)
+#define TRCIDR2_CCSIZE_SHIFT			25
+#define TRCIDR2_CCSIZE_MASK			GENMASK(3, 0)
+
 /*
  * System instructions to access ETM registers.
  * See ETMv4.4 spec ARM IHI0064F section 4.3.6 System instructions
-- 
2.28.0