Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751794AbdFFVJ6 (ORCPT ); Tue, 6 Jun 2017 17:09:58 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:42995 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751778AbdFFVJz (ORCPT ); Tue, 6 Jun 2017 17:09:55 -0400 From: Christopher Bostic To: robh+dt@kernel.org, mark.rutland@arm.com, linux@armlinux.org.uk, rostedt@goodmis.org, mingo@redhat.com, gregkh@linuxfoundation.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: Jeremy Kerr , joel@jms.id.au, linux-kernel@vger.kernel.org, andrew@aj.id.au, alistair@popple.id.au, benh@kernel.crashing.org, Christopher Bostic Subject: [PATCH v8 20/24] drivers/fsi/gpio: Add tracepoints for GPIO master Date: Tue, 6 Jun 2017 16:08:55 -0500 X-Mailer: git-send-email 2.10.1 (Apple Git-78) In-Reply-To: <20170606210859.80431-1-cbostic@linux.vnet.ibm.com> References: <20170606210859.80431-1-cbostic@linux.vnet.ibm.com> X-TM-AS-GCONF: 00 x-cbid: 17060621-0056-0000-0000-0000037F7C7D X-IBM-SpamModules-Scores: X-IBM-SpamModules-Versions: BY=3.00007185; HX=3.00000241; KW=3.00000007; PH=3.00000004; SC=3.00000212; SDB=6.00871106; UDB=6.00433228; IPR=6.00651099; BA=6.00005403; NDR=6.00000001; ZLA=6.00000005; ZF=6.00000009; ZB=6.00000000; ZP=6.00000000; ZH=6.00000000; ZU=6.00000002; MB=3.00015723; XFM=3.00000015; UTC=2017-06-06 21:09:52 X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 17060621-0057-0000-0000-000007B582EC Message-Id: <20170606210859.80431-21-cbostic@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:,, definitions=2017-06-06_14:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=0 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1703280000 definitions=main-1706060367 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3535 Lines: 129 From: Jeremy Kerr Trace low level input/output GPIO operations. Signed-off-by: Jeremy Kerr Signed-off-by: Christopher Bostic --- drivers/fsi/fsi-master-gpio.c | 9 +++++ include/trace/events/fsi_master_gpio.h | 68 ++++++++++++++++++++++++++++++++++ 2 files changed, 77 insertions(+) create mode 100644 include/trace/events/fsi_master_gpio.h diff --git a/drivers/fsi/fsi-master-gpio.c b/drivers/fsi/fsi-master-gpio.c index d467e61..a5d6e70 100644 --- a/drivers/fsi/fsi-master-gpio.c +++ b/drivers/fsi/fsi-master-gpio.c @@ -61,6 +61,9 @@ struct fsi_master_gpio { struct gpio_desc *gpio_mux; /* Mux control */ }; +#define CREATE_TRACE_POINTS +#include + #define to_fsi_master_gpio(m) container_of(m, struct fsi_master_gpio, master) struct fsi_gpio_msg { @@ -126,6 +129,8 @@ static void serial_in(struct fsi_master_gpio *master, struct fsi_gpio_msg *msg, msg->msg |= ~in_bit & 0x1; /* Data is active low */ } msg->bits += num_bits; + + trace_fsi_master_gpio_in(master, num_bits, msg->msg); } static void serial_out(struct fsi_master_gpio *master, @@ -137,6 +142,8 @@ static void serial_out(struct fsi_master_gpio *master, uint64_t last_bit = ~0; int next_bit; + trace_fsi_master_gpio_out(master, cmd->bits, cmd->msg); + if (!cmd->bits) { dev_warn(master->dev, "trying to output 0 bits\n"); return; @@ -458,6 +465,8 @@ static int fsi_master_gpio_break(struct fsi_master *_master, int link) if (link != 0) return -ENODEV; + trace_fsi_master_gpio_break(master); + set_sda_output(master, 1); sda_out(master, 1); clock_toggle(master, FSI_PRE_BREAK_CLOCKS); diff --git a/include/trace/events/fsi_master_gpio.h b/include/trace/events/fsi_master_gpio.h new file mode 100644 index 0000000..11b36c1 --- /dev/null +++ b/include/trace/events/fsi_master_gpio.h @@ -0,0 +1,68 @@ + +#undef TRACE_SYSTEM +#define TRACE_SYSTEM fsi_master_gpio + +#if !defined(_TRACE_FSI_MASTER_GPIO_H) || defined(TRACE_HEADER_MULTI_READ) +#define _TRACE_FSI_MASTER_GPIO_H + +#include + +TRACE_EVENT(fsi_master_gpio_in, + TP_PROTO(const struct fsi_master_gpio *master, int bits, uint64_t msg), + TP_ARGS(master, bits, msg), + TP_STRUCT__entry( + __field(int, master_idx) + __field(int, bits) + __field(uint64_t, msg) + ), + TP_fast_assign( + __entry->master_idx = master->master.idx; + __entry->bits = bits; + __entry->msg = msg & ((1ull< %0*llx[%d]", + __entry->master_idx, + (__entry->bits + 3) / 4, + __entry->msg, + __entry->bits + ) +); + +TRACE_EVENT(fsi_master_gpio_out, + TP_PROTO(const struct fsi_master_gpio *master, int bits, uint64_t msg), + TP_ARGS(master, bits, msg), + TP_STRUCT__entry( + __field(int, master_idx) + __field(int, bits) + __field(uint64_t, msg) + ), + TP_fast_assign( + __entry->master_idx = master->master.idx; + __entry->bits = bits; + __entry->msg = msg & ((1ull<master_idx, + (__entry->bits + 3) / 4, + __entry->msg, + __entry->bits + ) +); + +TRACE_EVENT(fsi_master_gpio_break, + TP_PROTO(const struct fsi_master_gpio *master), + TP_ARGS(master), + TP_STRUCT__entry( + __field(int, master_idx) + ), + TP_fast_assign( + __entry->master_idx = master->master.idx; + ), + TP_printk("fsi-gpio%d ----break---", + __entry->master_idx + ) +); + +#endif /* _TRACE_FSI_MASTER_GPIO_H */ + +#include -- 1.8.2.2