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From: James Clark <james.clark@linaro.org>
To: Suzuki K Poulose <suzuki.poulose@arm.com>,
	 Mike Leach <mike.leach@linaro.org>,
	 Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	 Jonathan Corbet <corbet@lwn.net>, Leo Yan <leo.yan@arm.com>
Cc: coresight@lists.linaro.org, linux-arm-kernel@lists.infradead.org,
	 linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org,
	 James Clark <james.clark@linaro.org>
Subject: [PATCH 3/6] coresight: Repack struct etmv4_drvdata
Date: Mon, 11 Aug 2025 10:32:08 +0100	[thread overview]
Message-ID: <20250811-james-cs-syncfreq-v1-3-b001cd6e3404@linaro.org> (raw)
In-Reply-To: <20250811-james-cs-syncfreq-v1-0-b001cd6e3404@linaro.org>

Fix holes and convert the long list of bools to single bits to save
some space because there's one of these for each ETM.

Signed-off-by: James Clark <james.clark@linaro.org>
---
 drivers/hwtracing/coresight/coresight-etm4x.h | 39 ++++++++++++++-------------
 1 file changed, 20 insertions(+), 19 deletions(-)

diff --git a/drivers/hwtracing/coresight/coresight-etm4x.h b/drivers/hwtracing/coresight/coresight-etm4x.h
index a355a1e9606d..1c67b263b01b 100644
--- a/drivers/hwtracing/coresight/coresight-etm4x.h
+++ b/drivers/hwtracing/coresight/coresight-etm4x.h
@@ -1020,29 +1020,30 @@ struct etmv4_drvdata {
 	u8				ns_ex_level;
 	u8				q_support;
 	u8				os_lock_model;
-	bool				sticky_enable;
-	bool				boot_enable;
-	bool				os_unlock;
-	bool				instrp0;
-	bool				q_filt;
-	bool				trcbb;
-	bool				trccond;
-	bool				retstack;
-	bool				trccci;
-	bool				trc_error;
-	bool				syncpr;
-	bool				stallctl;
-	bool				sysstall;
-	bool				nooverflow;
-	bool				atbtrig;
-	bool				lpoverride;
+	bool				sticky_enable : 1;
+	bool				boot_enable : 1;
+	bool				os_unlock : 1;
+	bool				instrp0 : 1;
+	bool				q_filt : 1;
+	bool				trcbb : 1;
+	bool				trccond : 1;
+	bool				retstack : 1;
+	bool				trccci : 1;
+	bool				trc_error : 1;
+	bool				syncpr : 1;
+	bool				stallctl : 1;
+	bool				sysstall : 1;
+	bool				nooverflow : 1;
+	bool				atbtrig : 1;
+	bool				lpoverride : 1;
+	bool				state_needs_restore : 1;
+	bool				skip_power_up : 1;
+	bool				paused : 1;
 	u64				trfcr;
 	struct etmv4_config		config;
 	u64				save_trfcr;
 	struct etmv4_save_state		*save_state;
-	bool				state_needs_restore;
-	bool				skip_power_up;
-	bool				paused;
+
 	DECLARE_BITMAP(arch_features, ETM4_IMPDEF_FEATURE_MAX);
 };
 

-- 
2.34.1



  parent reply	other threads:[~2025-08-11  9:45 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-08-11  9:32 [PATCH 0/6] coresight: Add format attribute for setting the timestamp interval James Clark
2025-08-11  9:32 ` [PATCH 1/6] coresight: Change syncfreq to be a u8 James Clark
2025-08-11  9:32 ` [PATCH 2/6] coresight: Fix holes in struct etmv4_config James Clark
2025-08-14 12:37   ` Mike Leach
2025-08-11  9:32 ` James Clark [this message]
2025-08-14 12:38   ` [PATCH 3/6] coresight: Repack struct etmv4_drvdata Mike Leach
2025-08-11  9:32 ` [PATCH 4/6] coresight: Refactor etm4_config_timestamp_event() James Clark
2025-08-11  9:32 ` [PATCH 5/6] coresight: Add format attribute for setting the timestamp interval James Clark
2025-08-12  2:27   ` kernel test robot
2025-08-11  9:32 ` [PATCH 6/6] coresight: docs: Document etm4x ts_interval James Clark

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