Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756732AbbGGIod (ORCPT ); Tue, 7 Jul 2015 04:44:33 -0400 Received: from mail-pd0-f172.google.com ([209.85.192.172]:34763 "EHLO mail-pd0-f172.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754940AbbGGInT (ORCPT ); Tue, 7 Jul 2015 04:43:19 -0400 From: Chunyan Zhang To: mathieu.poirier@linaro.org, gregkh@linuxfoundation.org Cc: broonie@kernel.org, serge.broslavsky@linaro.org, zhang.lyra@gmail.com, linux-arm-kernel@lists.infradead.org, linux-api@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 1/5] coresight-etm3x: Change the name of the ctxid_val to ctxid_pid Date: Tue, 7 Jul 2015 16:41:54 +0800 Message-Id: <1436258518-9339-2-git-send-email-zhang.chunyan@linaro.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1436258518-9339-1-git-send-email-zhang.chunyan@linaro.org> References: <1436258518-9339-1-git-send-email-zhang.chunyan@linaro.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 5226 Lines: 130 'ctxid_val' array was used to store the value of ETM context ID comparator which actually stores the process ID to be traced, so using 'ctxid_pid' as its name instead make it easier to understand. This patch also changes the ABI, it is normally not allowed, but fortunately it is a testing ABI and very new for now. Nevertheless, if you don't think it should be changed, we could always add an alias for userspace. Signed-off-by: Chunyan Zhang Reviewed-by: Mark Brown --- .../ABI/testing/sysfs-bus-coresight-devices-etm3x | 2 +- drivers/hwtracing/coresight/coresight-etm.h | 4 ++-- drivers/hwtracing/coresight/coresight-etm3x.c | 16 ++++++++-------- 3 files changed, 11 insertions(+), 11 deletions(-) diff --git a/Documentation/ABI/testing/sysfs-bus-coresight-devices-etm3x b/Documentation/ABI/testing/sysfs-bus-coresight-devices-etm3x index b4d0b99..d72ca17 100644 --- a/Documentation/ABI/testing/sysfs-bus-coresight-devices-etm3x +++ b/Documentation/ABI/testing/sysfs-bus-coresight-devices-etm3x @@ -112,7 +112,7 @@ KernelVersion: 3.19 Contact: Mathieu Poirier Description: (RW) Mask to apply to all the context ID comparator. -What: /sys/bus/coresight/devices/.[etm|ptm]/ctxid_val +What: /sys/bus/coresight/devices/.[etm|ptm]/ctxid_pid Date: November 2014 KernelVersion: 3.19 Contact: Mathieu Poirier diff --git a/drivers/hwtracing/coresight/coresight-etm.h b/drivers/hwtracing/coresight/coresight-etm.h index 098ffbe..52af5f0 100644 --- a/drivers/hwtracing/coresight/coresight-etm.h +++ b/drivers/hwtracing/coresight/coresight-etm.h @@ -183,7 +183,7 @@ * @seq_13_event: event causing the transition from 1 to 3. * @seq_curr_state: current value of the sequencer register. * @ctxid_idx: index for the context ID registers. - * @ctxid_val: value for the context ID to trigger on. + * @ctxid_pid: value for the context ID to trigger on. * @ctxid_mask: mask applicable to all the context IDs. * @sync_freq: Synchronisation frequency. * @timestamp_event: Defines an event that requests the insertion @@ -235,7 +235,7 @@ struct etm_drvdata { u32 seq_13_event; u32 seq_curr_state; u8 ctxid_idx; - u32 ctxid_val[ETM_MAX_CTXID_CMP]; + u32 ctxid_pid[ETM_MAX_CTXID_CMP]; u32 ctxid_mask; u32 sync_freq; u32 timestamp_event; diff --git a/drivers/hwtracing/coresight/coresight-etm3x.c b/drivers/hwtracing/coresight/coresight-etm3x.c index 018a00f..cfda302 100644 --- a/drivers/hwtracing/coresight/coresight-etm3x.c +++ b/drivers/hwtracing/coresight/coresight-etm3x.c @@ -238,7 +238,7 @@ static void etm_set_default(struct etm_drvdata *drvdata) drvdata->seq_curr_state = 0x0; drvdata->ctxid_idx = 0x0; for (i = 0; i < drvdata->nr_ctxid_cmp; i++) - drvdata->ctxid_val[i] = 0x0; + drvdata->ctxid_pid[i] = 0x0; drvdata->ctxid_mask = 0x0; } @@ -289,7 +289,7 @@ static void etm_enable_hw(void *info) for (i = 0; i < drvdata->nr_ext_out; i++) etm_writel(drvdata, ETM_DEFAULT_EVENT_VAL, ETMEXTOUTEVRn(i)); for (i = 0; i < drvdata->nr_ctxid_cmp; i++) - etm_writel(drvdata, drvdata->ctxid_val[i], ETMCIDCVRn(i)); + etm_writel(drvdata, drvdata->ctxid_pid[i], ETMCIDCVRn(i)); etm_writel(drvdata, drvdata->ctxid_mask, ETMCIDCMR); etm_writel(drvdata, drvdata->sync_freq, ETMSYNCFR); /* No external input selected */ @@ -1386,20 +1386,20 @@ static ssize_t ctxid_idx_store(struct device *dev, } static DEVICE_ATTR_RW(ctxid_idx); -static ssize_t ctxid_val_show(struct device *dev, +static ssize_t ctxid_pid_show(struct device *dev, struct device_attribute *attr, char *buf) { unsigned long val; struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent); spin_lock(&drvdata->spinlock); - val = drvdata->ctxid_val[drvdata->ctxid_idx]; + val = drvdata->ctxid_pid[drvdata->ctxid_idx]; spin_unlock(&drvdata->spinlock); return sprintf(buf, "%#lx\n", val); } -static ssize_t ctxid_val_store(struct device *dev, +static ssize_t ctxid_pid_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t size) { @@ -1412,12 +1412,12 @@ static ssize_t ctxid_val_store(struct device *dev, return ret; spin_lock(&drvdata->spinlock); - drvdata->ctxid_val[drvdata->ctxid_idx] = val; + drvdata->ctxid_pid[drvdata->ctxid_idx] = val; spin_unlock(&drvdata->spinlock); return size; } -static DEVICE_ATTR_RW(ctxid_val); +static DEVICE_ATTR_RW(ctxid_pid); static ssize_t ctxid_mask_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -1609,7 +1609,7 @@ static struct attribute *coresight_etm_attrs[] = { &dev_attr_seq_13_event.attr, &dev_attr_seq_curr_state.attr, &dev_attr_ctxid_idx.attr, - &dev_attr_ctxid_val.attr, + &dev_attr_ctxid_pid.attr, &dev_attr_ctxid_mask.attr, &dev_attr_sync_freq.attr, &dev_attr_timestamp_event.attr, -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/