From: yiru zhang <yiru.zhang@mediatek.com>
To: Suzuki K Poulose <suzuki.poulose@arm.com>,
Mike Leach <mike.leach@linaro.org>,
James Clark <james.clark@linaro.org>,
Alexander Shishkin <alexander.shishkin@linux.intel.com>,
Matthias Brugger <matthias.bgg@gmail.com>,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@collabora.com>
Cc: <coresight@lists.linaro.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>,
<linux-mediatek@lists.infradead.org>,
yiru zhang <yiru.zhang@mediatek.com>
Subject: [PATCH] [Patch v2]Add ETE devarch condition in etm4_init_iomem_access
Date: Wed, 9 Apr 2025 11:29:12 +0800 [thread overview]
Message-ID: <20250409032917.7580-1-yiru.zhang@mediatek.com> (raw)
Due to ETE supported, so add ETE devarch condition in etm4_init_iomem_access.
Signed-off-by: yiru zhang <yiru.zhang@mediatek.com>
v1->v2: use switch case way
---
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..366d11e038de 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: %x\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
next reply other threads:[~2025-04-09 3:29 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-09 3:29 yiru zhang [this message]
2025-04-10 7:25 ` kernel test robot
2025-04-10 9:28 ` kernel test robot
2025-04-10 9:51 ` [PATCH] [Patch v3]Add " yiru zhang
2025-04-10 13:21 ` Mike Leach
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