linux-kernel - [PATCH v2 04/15] coresight: Make ETM4x TRCIDR4 register accesses consistent with sysreg.h

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Message-Id: <20220203120604.128396-5-james.clark@arm.com>
Date:   Thu,  3 Feb 2022 12:05:52 +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 04/15] coresight: Make ETM4x TRCIDR4 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 | 12 ++++++------
 drivers/hwtracing/coresight/coresight-etm4x.h      | 14 ++++++++++++++
 2 files changed, 20 insertions(+), 6 deletions(-)

diff --git a/drivers/hwtracing/coresight/coresight-etm4x-core.c b/drivers/hwtracing/coresight/coresight-etm4x-core.c
index ba43fb9a4526..553a532b65f8 100644
--- a/drivers/hwtracing/coresight/coresight-etm4x-core.c
+++ b/drivers/hwtracing/coresight/coresight-etm4x-core.c
@@ -1149,9 +1149,9 @@ static void etm4_init_arch_data(void *info)
 	/* number of resources trace unit supports */
 	etmidr4 = etm4x_relaxed_read32(csa, TRCIDR4);
 	/* NUMACPAIRS, bits[0:3] number of addr comparator pairs for tracing */
-	drvdata->nr_addr_cmp = BMVAL(etmidr4, 0, 3);
+	drvdata->nr_addr_cmp = REG_VAL(etmidr4, TRCIDR4_NUMACPAIRS);
 	/* NUMPC, bits[15:12] number of PE comparator inputs for tracing */
-	drvdata->nr_pe_cmp = BMVAL(etmidr4, 12, 15);
+	drvdata->nr_pe_cmp = REG_VAL(etmidr4, TRCIDR4_NUMPC);
 	/*
 	 * NUMRSPAIR, bits[19:16]
 	 * The number of resource pairs conveyed by the HW starts at 0, i.e a
@@ -1162,7 +1162,7 @@ static void etm4_init_arch_data(void *info)
 	 * the default TRUE and FALSE resource selectors are omitted.
 	 * Otherwise for values 0x1 and above the number is N + 1 as per v4.2.
 	 */
-	drvdata->nr_resource = BMVAL(etmidr4, 16, 19);
+	drvdata->nr_resource = REG_VAL(etmidr4, TRCIDR4_NUMRSPAIR);
 	if ((drvdata->arch < ETM_ARCH_V4_3) || (drvdata->nr_resource > 0))
 		drvdata->nr_resource += 1;
 	/*
@@ -1170,15 +1170,15 @@ static void etm4_init_arch_data(void *info)
 	 * comparator control for tracing. Read any status regs as these
 	 * also contain RO capability data.
 	 */
-	drvdata->nr_ss_cmp = BMVAL(etmidr4, 20, 23);
+	drvdata->nr_ss_cmp = REG_VAL(etmidr4, TRCIDR4_NUMSSCC);
 	for (i = 0; i < drvdata->nr_ss_cmp; i++) {
 		drvdata->config.ss_status[i] =
 			etm4x_relaxed_read32(csa, TRCSSCSRn(i));
 	}
 	/* NUMCIDC, bits[27:24] number of Context ID comparators for tracing */
-	drvdata->numcidc = BMVAL(etmidr4, 24, 27);
+	drvdata->numcidc = REG_VAL(etmidr4, TRCIDR4_NUMCIDC);
 	/* NUMVMIDC, bits[31:28] number of VMID comparators for tracing */
-	drvdata->numvmidc = BMVAL(etmidr4, 28, 31);
+	drvdata->numvmidc = REG_VAL(etmidr4, TRCIDR4_NUMVMIDC);
 
 	etmidr5 = etm4x_relaxed_read32(csa, TRCIDR5);
 	/* NUMEXTIN, bits[8:0] number of external inputs implemented */
diff --git a/drivers/hwtracing/coresight/coresight-etm4x.h b/drivers/hwtracing/coresight/coresight-etm4x.h
index 051d7948f15b..0b22c57a9da1 100644
--- a/drivers/hwtracing/coresight/coresight-etm4x.h
+++ b/drivers/hwtracing/coresight/coresight-etm4x.h
@@ -169,6 +169,20 @@
 #define TRCIDR3_NUMPROC_HI_SHIFT		12
 #define TRCIDR3_NUMPROC_HI_MASK			GENMASK(1, 0)
 #define TRCIDR3_NOOVERFLOW			BIT(31)
+
+#define TRCIDR4_NUMACPAIRS_SHIFT		0
+#define TRCIDR4_NUMACPAIRS_MASK			GENMASK(3, 0)
+#define TRCIDR4_NUMPC_SHIFT			12
+#define TRCIDR4_NUMPC_MASK			GENMASK(3, 0)
+#define TRCIDR4_NUMRSPAIR_SHIFT			16
+#define TRCIDR4_NUMRSPAIR_MASK			GENMASK(3, 0)
+#define TRCIDR4_NUMSSCC_SHIFT			20
+#define TRCIDR4_NUMSSCC_MASK			GENMASK(3, 0)
+#define TRCIDR4_NUMCIDC_SHIFT			24
+#define TRCIDR4_NUMCIDC_MASK			GENMASK(3, 0)
+#define TRCIDR4_NUMVMIDC_SHIFT			28
+#define TRCIDR4_NUMVMIDC_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