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From: yiru zhang <yiru.zhang@mediatek.com>
To: <yiru.zhang@mediatek.com>
Cc: <alexander.shishkin@linux.intel.com>,
	<angelogioacchino.delregno@collabora.com>,
	<coresight@lists.linaro.org>, <james.clark@linaro.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>,
	<linux-mediatek@lists.infradead.org>, <matthias.bgg@gmail.com>,
	<mike.leach@linaro.org>, <suzuki.poulose@arm.com>,
	kernel test robot <lkp@intel.com>
Subject: [PATCH] [Patch v3]Add ETE devarch condition in etm4_init_iomem_access
Date: Thu, 10 Apr 2025 17:51:58 +0800	[thread overview]
Message-ID: <20250410095158.8966-1-yiru.zhang@mediatek.com> (raw)
In-Reply-To: <20250409032917.7580-1-yiru.zhang@mediatek.com>

Due to ETE supported, so add ETE devarch condition in etm4_init_iomem_access.

Signed-off-by: yiru zhang <yiru.zhang@mediatek.com>
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202504101759.7Ls0Uy4o-lkp@intel.com/

v1->v2: use switch case way
v2->v3: clean build warning
---
 drivers/hwtracing/coresight/coresight-etm4x-core.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/hwtracing/coresight/coresight-etm4x-core.c b/drivers/hwtracing/coresight/coresight-etm4x-core.c
index 2b8f10463840..4002a2823fd0 100644
--- a/drivers/hwtracing/coresight/coresight-etm4x-core.c
+++ b/drivers/hwtracing/coresight/coresight-etm4x-core.c
@@ -1135,11 +1135,15 @@ static bool etm4_init_iomem_access(struct etmv4_drvdata *drvdata,
 	 * with MMIO. But we cannot touch the OSLK until we are
 	 * sure this is an ETM. So rely only on the TRCDEVARCH.
 	 */
-	if ((devarch & ETM_DEVARCH_ID_MASK) != ETM_DEVARCH_ETMv4x_ARCH) {
-		pr_warn_once("TRCDEVARCH doesn't match ETMv4 architecture\n");
+	switch (devarch & ETM_DEVARCH_ID_MASK) {
+	case ETM_DEVARCH_ETMv4x_ARCH:
+	case ETM_DEVARCH_ETE_ARCH:
+		break;
+	default:
+		pr_warn_once("Unknown ETM architecture: 0x%lx\n",
+			     devarch & ETM_DEVARCH_ID_MASK);
 		return false;
 	}
-
 	drvdata->arch = etm_devarch_to_arch(devarch);
 	*csa = CSDEV_ACCESS_IOMEM(drvdata->base);
 	return true;
-- 
2.46.0


  parent reply	other threads:[~2025-04-10  9:52 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-04-09  3:29 [PATCH] [Patch v2]Add " yiru zhang
2025-04-10  7:25 ` kernel test robot
2025-04-10  9:28 ` kernel test robot
2025-04-10  9:51 ` yiru zhang [this message]
2025-04-10 13:21   ` [PATCH] [Patch v3]Add " Mike Leach

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