linux-kernel - [PATCH] [Patch v1]Add ETE devarch condition in etm4_init_iomem

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Message-ID: <20250408073651.17140-1-yiru.zhang@mediatek.com>
Date: Tue, 8 Apr 2025 15:36:46 +0800
From: yiru zhang <yiru.zhang@...iatek.com>
To: Suzuki K Poulose <suzuki.poulose@....com>, Mike Leach
	<mike.leach@...aro.org>, James Clark <james.clark@...aro.org>, Alexander
 Shishkin <alexander.shishkin@...ux.intel.com>, Matthias Brugger
	<matthias.bgg@...il.com>, AngeloGioacchino Del Regno
	<angelogioacchino.delregno@...labora.com>
CC: <coresight@...ts.linaro.org>, <linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, <linux-mediatek@...ts.infradead.org>, yiru
 zhang <yiru.zhang@...iatek.com>
Subject: [PATCH] [Patch v1]Add ETE devarch condition in etm4_init_iomem_access

Due to ETE supported, so add ETE devarch condition in etm4_init_iomem_access.
Signed-off-by: yiru zhang <yiru.zhang@...iatek.com>
---
 drivers/hwtracing/coresight/coresight-etm4x-core.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/hwtracing/coresight/coresight-etm4x-core.c b/drivers/hwtracing/coresight/coresight-etm4x-core.c
index 2b8f10463840..971b9f0fe5e4 100644
--- a/drivers/hwtracing/coresight/coresight-etm4x-core.c
+++ b/drivers/hwtracing/coresight/coresight-etm4x-core.c
@@ -1135,8 +1135,9 @@ 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");
+	if ((devarch & ETM_DEVARCH_ID_MASK) != ETM_DEVARCH_ETMv4x_ARCH \
+	&& (devarch & ETM_DEVARCH_ID_MASK) != ETM_DEVARCH_ETE_ARCH) {
+		pr_warn_once("TRCDEVARCH doesn't match ETMv4&ETE architecture\n");
 		return false;
 	}
 
-- 
2.46.0