From nobody Mon Dec 1 22:03:17 2025 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 3BD0930AACA; Mon, 1 Dec 2025 11:22:33 +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=1764588155; cv=none; b=hqMzkrGB4XSkA+dyDWExsFhqmXPPEZpAYvlotyiqklB4eolZsIJ3aicr23wweQBv3e8HTexMvngI89Ud+5VPubTPxC5Bg6srrQhMy+nCuLFLYFoRJbdw8VYPYYVjgYTTrHk6WKELlX6JdkvelZAeVx0nHKP/ltpdt0BeLTpuMdM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1764588155; c=relaxed/simple; bh=ksnOW813/iK1sop8lflRXFLjB5lzQz2UyBhXvDajeUw=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=f/iAhsW0UVEBB8OVWlJmo27zqrv2V+YsmOMS+ZP0OyOGsHJ7B2xd6CUY8tBa0hEhMl3swqg/yQlUSaMDhsKB+j2zit+84TTI++0HgDNO8mpSHJLNOdEVG6a9QWzeVfU3E+XTBGxMwtOZnY5W+sAkgRA37FyPlzhDJARm54u9Nks= 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; 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 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 35121153B; Mon, 1 Dec 2025 03:22:26 -0800 (PST) Received: from e132581.arm.com (e132581.arm.com [10.1.196.87]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 13E583F59E; Mon, 1 Dec 2025 03:22:30 -0800 (PST) From: Leo Yan Date: Mon, 01 Dec 2025 11:21:59 +0000 Subject: [PATCH 09/19] 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: quoted-printable Message-Id: <20251201-trbe_buffer_refactor_v1-1-v1-9-7da32b076b28@arm.com> References: <20251201-trbe_buffer_refactor_v1-1-v1-0-7da32b076b28@arm.com> In-Reply-To: <20251201-trbe_buffer_refactor_v1-1-v1-0-7da32b076b28@arm.com> To: Suzuki K Poulose , Mike Leach , James Clark , Anshuman Khandual , Yeoreum Yun , Will Deacon , Mark Rutland , Tamas Petz , Tamas Zsoldos , Arnaldo Carvalho de Melo , Namhyung Kim , Jiri Olsa , Ian Rogers , Adrian Hunter Cc: coresight@lists.linaro.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, Leo Yan X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1764588125; l=1665; i=leo.yan@arm.com; s=20250604; h=from:subject:message-id; bh=ksnOW813/iK1sop8lflRXFLjB5lzQz2UyBhXvDajeUw=; b=FymtGmZmDoYUeDSYYDJzHDfusIr5gd+3LCACayX07U7EGpHbpD/+PMIJnWQTugSmTqfH0PXGq LRhPTtr7wwiAxLQTaUOGwzOHMYh5s/lK2CI47ZA0OnwDtEerPJg1MSC 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/hwtraci= ng/coresight/coresight-trbe.c index 0caa4a6b437a3aa39fc6bcc72a23711b54f7c598..f56ecdeaa6596afb440e4d53732= e08a85f9bf89d 100644 --- a/drivers/hwtracing/coresight/coresight-trbe.c +++ b/drivers/hwtracing/coresight/coresight-trbe.c @@ -1078,14 +1078,15 @@ static void trbe_handle_spurious(struct perf_output= _handle *handle) set_trbe_enabled(buf->cpudata, trblimitr); } =20 -static int trbe_handle_overflow(struct perf_output_handle *handle) +static int trbe_handle_overflow(struct perf_output_handle *handle, + enum trbe_fault_action act) { struct perf_event *event =3D handle->event; struct trbe_buf *buf =3D etm_perf_sink_config(handle); unsigned long size; struct etm_event_data *event_data; =20 - size =3D trbe_get_trace_size(handle, buf, true); + size =3D trbe_get_trace_size(handle, buf, act =3D=3D TRBE_FAULT_ACT_WRAP); if (buf->snapshot) handle->head +=3D size; =20 @@ -1179,7 +1180,7 @@ static irqreturn_t arm_trbe_irq_handler(int irq, void= *dev) =20 switch (act) { case TRBE_FAULT_ACT_WRAP: - truncated =3D !!trbe_handle_overflow(handle); + truncated =3D !!trbe_handle_overflow(handle, act); break; case TRBE_FAULT_ACT_SPURIOUS: trbe_handle_spurious(handle); --=20 2.34.1