From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 5720C545D85 for ; Fri, 16 Oct 2026 16:55:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1792169750; cv=none; b=rd3Uh97SkfILbrZwesR8ohXh3+4PnHD0U6dhRgdVPvCJ9Dh+pnIHGeSEjxAregc1K4C96Gtg9DDkEPtgRsYFPh3OUwqa37ooUb3xLj21Thmiryfg/AY+KrBdpUQEJkD3wQEnJ0eUk2p8DPCBhcYMZbknO9501JENDxWGOKB9Eew= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1792169750; c=relaxed/simple; bh=GQRU9DFvAxcogjfhIENbBt6INOxd1HytQUmpWyWEfRE=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=joVCJpR4VVAu70On+8E33gN7mdsQF/L6B2BF3Ch0YvXLVz4kHy6ne78Nn9S+OcBf/mzJNPQbn+Ghg8FY6ojUeINsNsQBmyZaIJ/xjWR23d60v3Q365G7vwLjvpBIxsESCl7e8fqNcrAAiZPtYDCMDCIWnunP0VUqC3Cl1yIwjdE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; dkim=pass (1024-bit key) header.d=arm.com header.i=@arm.com header.b=bEM8qECs; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=arm.com header.i=@arm.com header.b="bEM8qECs" Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 731CD1691; Fri, 16 Oct 2026 09:55:45 -0700 (PDT) Received: from e132581.arm.com (unknown [10.2.196.114]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 2DA293F7B4; Fri, 16 Oct 2026 09:55:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss; t=1792169748; bh=GQRU9DFvAxcogjfhIENbBt6INOxd1HytQUmpWyWEfRE=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=bEM8qECskA4mbmm+3PxnZ7rrV8bNyLdf/0L5uUfgn93fEdpUixwvYjklB9qLZuad8 fxazEPugZ5NPUKKK5jxXFTW6KfGrOk7caEcEsPek5LEaYtvl95l8b/m2EGlTEigvoN VwXc8doira51QgRChYgmiwc5cklzJLiLgfjcLshg= From: Leo Yan Date: Fri, 16 Oct 2026 17:55:18 +0100 Subject: [PATCH v2 20/23] coresight: trbe: Add fault action argument to trbe_handle_overflow() Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20261016-trbe_enable_disable_irq_handle_refactor-v2-20-3f57cf3199b1@arm.com> References: <20261016-trbe_enable_disable_irq_handle_refactor-v2-0-3f57cf3199b1@arm.com> In-Reply-To: <20261016-trbe_enable_disable_irq_handle_refactor-v2-0-3f57cf3199b1@arm.com> To: Suzuki K Poulose , Mike Leach , James Clark , Alexander Shishkin , Anshuman Khandual , Tamas Petz , Tamas Zsoldos , Suyash Mahar , Amir Ayupov Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, coresight@lists.linaro.org, Leo Yan X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1792169710; l=1741; i=leo.yan@arm.com; s=20250604; h=from:subject:message-id; bh=GQRU9DFvAxcogjfhIENbBt6INOxd1HytQUmpWyWEfRE=; b=GRFWx5MtpRGZ6KTGxd6mRZGFkmMpkY23N0YTyZHahDGJnGJtTyN2XyZuxMQlO9UGo+M8YQOuH uS8KEHffl16ABa39VbAKDsEUeIEowkjGLck7OM8cMMnj2FvZOwWfbrR X-Developer-Key: i=leo.yan@arm.com; a=ed25519; pk=k4BaDbvkCXzBFA7Nw184KHGP5thju8lKqJYIrOWxDhI= Add a new argument to trbe_handle_overflow() for the fault action, which is used to compare the wrap event for trace size calculation. No functional change intended; this is preparation for a later update. Signed-off-by: Leo Yan --- drivers/hwtracing/coresight/coresight-trbe.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/hwtracing/coresight/coresight-trbe.c b/drivers/hwtracing/coresight/coresight-trbe.c index f1f102df6c387f53feaa12b89d3df89f734afcdb..c83c440d4ac13c346bc2a7f9093951c186c90157 100644 --- a/drivers/hwtracing/coresight/coresight-trbe.c +++ b/drivers/hwtracing/coresight/coresight-trbe.c @@ -1132,7 +1132,8 @@ static void trbe_handle_spurious(struct trbe_cpudata *cpudata) set_trbe_enabled(cpudata, trblimitr); } -static int trbe_handle_overflow(struct trbe_cpudata *cpudata) +static int trbe_handle_overflow(struct trbe_cpudata *cpudata, + enum trbe_fault_action act) { struct perf_output_handle *handle = cpudata->handle; struct perf_event *event = handle->event; @@ -1147,7 +1148,7 @@ static int trbe_handle_overflow(struct trbe_cpudata *cpudata) */ clr_trbe_status(); - size = trbe_get_trace_size(handle, buf, true); + size = trbe_get_trace_size(handle, buf, act == TRBE_FAULT_ACT_WRAP); if (buf->snapshot) handle->head += size; @@ -1253,7 +1254,7 @@ static irqreturn_t arm_trbe_irq_handler(int irq, void *dev) act = trbe_get_fault_act(handle, status); switch (act) { case TRBE_FAULT_ACT_WRAP: - truncated = !!trbe_handle_overflow(cpudata); + truncated = !!trbe_handle_overflow(cpudata, act); break; case TRBE_FAULT_ACT_SPURIOUS: trbe_handle_spurious(cpudata); -- 2.34.1