coresight: etm3x: moving sysFS entries to dedicated file
SysFS entries are big enough to justify their own file.
As such moving all sysFS related declarations to a dedicated
location.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/hwtracing/coresight/coresight-etm3x-sysfs.c b/drivers/hwtracing/coresight/coresight-etm3x-sysfs.c
new file mode 100644
index 0000000..f409f5a
--- /dev/null
+++ b/drivers/hwtracing/coresight/coresight-etm3x-sysfs.c
@@ -0,0 +1,1218 @@
+/*
+ * Copyright(C) 2015 Linaro Limited. All rights reserved.
+ * Author: Mathieu Poirier <mathieu.poirier@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/pm_runtime.h>
+#include <linux/sysfs.h>
+#include "coresight-etm.h"
+
+static ssize_t nr_addr_cmp_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = drvdata->nr_addr_cmp;
+ return sprintf(buf, "%#lx\n", val);
+}
+static DEVICE_ATTR_RO(nr_addr_cmp);
+
+static ssize_t nr_cntr_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = drvdata->nr_cntr;
+ return sprintf(buf, "%#lx\n", val);
+}
+static DEVICE_ATTR_RO(nr_cntr);
+
+static ssize_t nr_ctxid_cmp_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = drvdata->nr_ctxid_cmp;
+ return sprintf(buf, "%#lx\n", val);
+}
+static DEVICE_ATTR_RO(nr_ctxid_cmp);
+
+static ssize_t etmsr_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ unsigned long flags, val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ pm_runtime_get_sync(drvdata->dev);
+ spin_lock_irqsave(&drvdata->spinlock, flags);
+ CS_UNLOCK(drvdata->base);
+
+ val = etm_readl(drvdata, ETMSR);
+
+ CS_LOCK(drvdata->base);
+ spin_unlock_irqrestore(&drvdata->spinlock, flags);
+ pm_runtime_put(drvdata->dev);
+
+ return sprintf(buf, "%#lx\n", val);
+}
+static DEVICE_ATTR_RO(etmsr);
+
+static ssize_t reset_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ int i, ret;
+ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ ret = kstrtoul(buf, 16, &val);
+ if (ret)
+ return ret;
+
+ if (val) {
+ spin_lock(&drvdata->spinlock);
+ drvdata->mode = ETM_MODE_EXCLUDE;
+ drvdata->ctrl = 0x0;
+ drvdata->trigger_event = ETM_DEFAULT_EVENT_VAL;
+ drvdata->startstop_ctrl = 0x0;
+ drvdata->addr_idx = 0x0;
+ for (i = 0; i < drvdata->nr_addr_cmp; i++) {
+ drvdata->addr_val[i] = 0x0;
+ drvdata->addr_acctype[i] = 0x0;
+ drvdata->addr_type[i] = ETM_ADDR_TYPE_NONE;
+ }
+ drvdata->cntr_idx = 0x0;
+
+ etm_set_default(drvdata);
+ spin_unlock(&drvdata->spinlock);
+ }
+
+ return size;
+}
+static DEVICE_ATTR_WO(reset);
+
+static ssize_t mode_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = drvdata->mode;
+ return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t mode_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ int ret;
+ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ ret = kstrtoul(buf, 16, &val);
+ if (ret)
+ return ret;
+
+ spin_lock(&drvdata->spinlock);
+ drvdata->mode = val & ETM_MODE_ALL;
+
+ if (drvdata->mode & ETM_MODE_EXCLUDE)
+ drvdata->enable_ctrl1 |= ETMTECR1_INC_EXC;
+ else
+ drvdata->enable_ctrl1 &= ~ETMTECR1_INC_EXC;
+
+ if (drvdata->mode & ETM_MODE_CYCACC)
+ drvdata->ctrl |= ETMCR_CYC_ACC;
+ else
+ drvdata->ctrl &= ~ETMCR_CYC_ACC;
+
+ if (drvdata->mode & ETM_MODE_STALL) {
+ if (!(drvdata->etmccr & ETMCCR_FIFOFULL)) {
+ dev_warn(drvdata->dev, "stall mode not supported\n");
+ ret = -EINVAL;
+ goto err_unlock;
+ }
+ drvdata->ctrl |= ETMCR_STALL_MODE;
+ } else
+ drvdata->ctrl &= ~ETMCR_STALL_MODE;
+
+ if (drvdata->mode & ETM_MODE_TIMESTAMP) {
+ if (!(drvdata->etmccer & ETMCCER_TIMESTAMP)) {
+ dev_warn(drvdata->dev, "timestamp not supported\n");
+ ret = -EINVAL;
+ goto err_unlock;
+ }
+ drvdata->ctrl |= ETMCR_TIMESTAMP_EN;
+ } else
+ drvdata->ctrl &= ~ETMCR_TIMESTAMP_EN;
+
+ if (drvdata->mode & ETM_MODE_CTXID)
+ drvdata->ctrl |= ETMCR_CTXID_SIZE;
+ else
+ drvdata->ctrl &= ~ETMCR_CTXID_SIZE;
+ spin_unlock(&drvdata->spinlock);
+
+ return size;
+
+err_unlock:
+ spin_unlock(&drvdata->spinlock);
+ return ret;
+}
+static DEVICE_ATTR_RW(mode);
+
+static ssize_t trigger_event_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = drvdata->trigger_event;
+ return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t trigger_event_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ int ret;
+ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ ret = kstrtoul(buf, 16, &val);
+ if (ret)
+ return ret;
+
+ drvdata->trigger_event = val & ETM_EVENT_MASK;
+
+ return size;
+}
+static DEVICE_ATTR_RW(trigger_event);
+
+static ssize_t enable_event_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = drvdata->enable_event;
+ return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t enable_event_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ int ret;
+ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ ret = kstrtoul(buf, 16, &val);
+ if (ret)
+ return ret;
+
+ drvdata->enable_event = val & ETM_EVENT_MASK;
+
+ return size;
+}
+static DEVICE_ATTR_RW(enable_event);
+
+static ssize_t fifofull_level_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = drvdata->fifofull_level;
+ return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t fifofull_level_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ int ret;
+ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ ret = kstrtoul(buf, 16, &val);
+ if (ret)
+ return ret;
+
+ drvdata->fifofull_level = val;
+
+ return size;
+}
+static DEVICE_ATTR_RW(fifofull_level);
+
+static ssize_t addr_idx_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = drvdata->addr_idx;
+ return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t addr_idx_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ int ret;
+ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ ret = kstrtoul(buf, 16, &val);
+ if (ret)
+ return ret;
+
+ if (val >= drvdata->nr_addr_cmp)
+ return -EINVAL;
+
+ /*
+ * Use spinlock to ensure index doesn't change while it gets
+ * dereferenced multiple times within a spinlock block elsewhere.
+ */
+ spin_lock(&drvdata->spinlock);
+ drvdata->addr_idx = val;
+ spin_unlock(&drvdata->spinlock);
+
+ return size;
+}
+static DEVICE_ATTR_RW(addr_idx);
+
+static ssize_t addr_single_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ u8 idx;
+ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ spin_lock(&drvdata->spinlock);
+ idx = drvdata->addr_idx;
+ if (!(drvdata->addr_type[idx] == ETM_ADDR_TYPE_NONE ||
+ drvdata->addr_type[idx] == ETM_ADDR_TYPE_SINGLE)) {
+ spin_unlock(&drvdata->spinlock);
+ return -EINVAL;
+ }
+
+ val = drvdata->addr_val[idx];
+ spin_unlock(&drvdata->spinlock);
+
+ return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t addr_single_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ u8 idx;
+ int ret;
+ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ ret = kstrtoul(buf, 16, &val);
+ if (ret)
+ return ret;
+
+ spin_lock(&drvdata->spinlock);
+ idx = drvdata->addr_idx;
+ if (!(drvdata->addr_type[idx] == ETM_ADDR_TYPE_NONE ||
+ drvdata->addr_type[idx] == ETM_ADDR_TYPE_SINGLE)) {
+ spin_unlock(&drvdata->spinlock);
+ return -EINVAL;
+ }
+
+ drvdata->addr_val[idx] = val;
+ drvdata->addr_type[idx] = ETM_ADDR_TYPE_SINGLE;
+ spin_unlock(&drvdata->spinlock);
+
+ return size;
+}
+static DEVICE_ATTR_RW(addr_single);
+
+static ssize_t addr_range_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ u8 idx;
+ unsigned long val1, val2;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ spin_lock(&drvdata->spinlock);
+ idx = drvdata->addr_idx;
+ if (idx % 2 != 0) {
+ spin_unlock(&drvdata->spinlock);
+ return -EPERM;
+ }
+ if (!((drvdata->addr_type[idx] == ETM_ADDR_TYPE_NONE &&
+ drvdata->addr_type[idx + 1] == ETM_ADDR_TYPE_NONE) ||
+ (drvdata->addr_type[idx] == ETM_ADDR_TYPE_RANGE &&
+ drvdata->addr_type[idx + 1] == ETM_ADDR_TYPE_RANGE))) {
+ spin_unlock(&drvdata->spinlock);
+ return -EPERM;
+ }
+
+ val1 = drvdata->addr_val[idx];
+ val2 = drvdata->addr_val[idx + 1];
+ spin_unlock(&drvdata->spinlock);
+
+ return sprintf(buf, "%#lx %#lx\n", val1, val2);
+}
+
+static ssize_t addr_range_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ u8 idx;
+ unsigned long val1, val2;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ if (sscanf(buf, "%lx %lx", &val1, &val2) != 2)
+ return -EINVAL;
+ /* Lower address comparator cannot have a higher address value */
+ if (val1 > val2)
+ return -EINVAL;
+
+ spin_lock(&drvdata->spinlock);
+ idx = drvdata->addr_idx;
+ if (idx % 2 != 0) {
+ spin_unlock(&drvdata->spinlock);
+ return -EPERM;
+ }
+ if (!((drvdata->addr_type[idx] == ETM_ADDR_TYPE_NONE &&
+ drvdata->addr_type[idx + 1] == ETM_ADDR_TYPE_NONE) ||
+ (drvdata->addr_type[idx] == ETM_ADDR_TYPE_RANGE &&
+ drvdata->addr_type[idx + 1] == ETM_ADDR_TYPE_RANGE))) {
+ spin_unlock(&drvdata->spinlock);
+ return -EPERM;
+ }
+
+ drvdata->addr_val[idx] = val1;
+ drvdata->addr_type[idx] = ETM_ADDR_TYPE_RANGE;
+ drvdata->addr_val[idx + 1] = val2;
+ drvdata->addr_type[idx + 1] = ETM_ADDR_TYPE_RANGE;
+ drvdata->enable_ctrl1 |= (1 << (idx/2));
+ spin_unlock(&drvdata->spinlock);
+
+ return size;
+}
+static DEVICE_ATTR_RW(addr_range);
+
+static ssize_t addr_start_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ u8 idx;
+ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ spin_lock(&drvdata->spinlock);
+ idx = drvdata->addr_idx;
+ if (!(drvdata->addr_type[idx] == ETM_ADDR_TYPE_NONE ||
+ drvdata->addr_type[idx] == ETM_ADDR_TYPE_START)) {
+ spin_unlock(&drvdata->spinlock);
+ return -EPERM;
+ }
+
+ val = drvdata->addr_val[idx];
+ spin_unlock(&drvdata->spinlock);
+
+ return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t addr_start_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ u8 idx;
+ int ret;
+ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ ret = kstrtoul(buf, 16, &val);
+ if (ret)
+ return ret;
+
+ spin_lock(&drvdata->spinlock);
+ idx = drvdata->addr_idx;
+ if (!(drvdata->addr_type[idx] == ETM_ADDR_TYPE_NONE ||
+ drvdata->addr_type[idx] == ETM_ADDR_TYPE_START)) {
+ spin_unlock(&drvdata->spinlock);
+ return -EPERM;
+ }
+
+ drvdata->addr_val[idx] = val;
+ drvdata->addr_type[idx] = ETM_ADDR_TYPE_START;
+ drvdata->startstop_ctrl |= (1 << idx);
+ drvdata->enable_ctrl1 |= BIT(25);
+ spin_unlock(&drvdata->spinlock);
+
+ return size;
+}
+static DEVICE_ATTR_RW(addr_start);
+
+static ssize_t addr_stop_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ u8 idx;
+ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ spin_lock(&drvdata->spinlock);
+ idx = drvdata->addr_idx;
+ if (!(drvdata->addr_type[idx] == ETM_ADDR_TYPE_NONE ||
+ drvdata->addr_type[idx] == ETM_ADDR_TYPE_STOP)) {
+ spin_unlock(&drvdata->spinlock);
+ return -EPERM;
+ }
+
+ val = drvdata->addr_val[idx];
+ spin_unlock(&drvdata->spinlock);
+
+ return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t addr_stop_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ u8 idx;
+ int ret;
+ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ ret = kstrtoul(buf, 16, &val);
+ if (ret)
+ return ret;
+
+ spin_lock(&drvdata->spinlock);
+ idx = drvdata->addr_idx;
+ if (!(drvdata->addr_type[idx] == ETM_ADDR_TYPE_NONE ||
+ drvdata->addr_type[idx] == ETM_ADDR_TYPE_STOP)) {
+ spin_unlock(&drvdata->spinlock);
+ return -EPERM;
+ }
+
+ drvdata->addr_val[idx] = val;
+ drvdata->addr_type[idx] = ETM_ADDR_TYPE_STOP;
+ drvdata->startstop_ctrl |= (1 << (idx + 16));
+ drvdata->enable_ctrl1 |= ETMTECR1_START_STOP;
+ spin_unlock(&drvdata->spinlock);
+
+ return size;
+}
+static DEVICE_ATTR_RW(addr_stop);
+
+static ssize_t addr_acctype_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->addr_acctype[drvdata->addr_idx];
+ spin_unlock(&drvdata->spinlock);
+
+ return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t addr_acctype_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ int ret;
+ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ ret = kstrtoul(buf, 16, &val);
+ if (ret)
+ return ret;
+
+ spin_lock(&drvdata->spinlock);
+ drvdata->addr_acctype[drvdata->addr_idx] = val;
+ spin_unlock(&drvdata->spinlock);
+
+ return size;
+}
+static DEVICE_ATTR_RW(addr_acctype);
+
+static ssize_t cntr_idx_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = drvdata->cntr_idx;
+ return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t cntr_idx_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ int ret;
+ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ ret = kstrtoul(buf, 16, &val);
+ if (ret)
+ return ret;
+
+ if (val >= drvdata->nr_cntr)
+ return -EINVAL;
+ /*
+ * Use spinlock to ensure index doesn't change while it gets
+ * dereferenced multiple times within a spinlock block elsewhere.
+ */
+ spin_lock(&drvdata->spinlock);
+ drvdata->cntr_idx = val;
+ spin_unlock(&drvdata->spinlock);
+
+ return size;
+}
+static DEVICE_ATTR_RW(cntr_idx);
+
+static ssize_t cntr_rld_val_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->cntr_rld_val[drvdata->cntr_idx];
+ spin_unlock(&drvdata->spinlock);
+
+ return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t cntr_rld_val_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ int ret;
+ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ ret = kstrtoul(buf, 16, &val);
+ if (ret)
+ return ret;
+
+ spin_lock(&drvdata->spinlock);
+ drvdata->cntr_rld_val[drvdata->cntr_idx] = val;
+ spin_unlock(&drvdata->spinlock);
+
+ return size;
+}
+static DEVICE_ATTR_RW(cntr_rld_val);
+
+static ssize_t cntr_event_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->cntr_event[drvdata->cntr_idx];
+ spin_unlock(&drvdata->spinlock);
+
+ return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t cntr_event_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ int ret;
+ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ ret = kstrtoul(buf, 16, &val);
+ if (ret)
+ return ret;
+
+ spin_lock(&drvdata->spinlock);
+ drvdata->cntr_event[drvdata->cntr_idx] = val & ETM_EVENT_MASK;
+ spin_unlock(&drvdata->spinlock);
+
+ return size;
+}
+static DEVICE_ATTR_RW(cntr_event);
+
+static ssize_t cntr_rld_event_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->cntr_rld_event[drvdata->cntr_idx];
+ spin_unlock(&drvdata->spinlock);
+
+ return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t cntr_rld_event_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ int ret;
+ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ ret = kstrtoul(buf, 16, &val);
+ if (ret)
+ return ret;
+
+ spin_lock(&drvdata->spinlock);
+ drvdata->cntr_rld_event[drvdata->cntr_idx] = val & ETM_EVENT_MASK;
+ spin_unlock(&drvdata->spinlock);
+
+ return size;
+}
+static DEVICE_ATTR_RW(cntr_rld_event);
+
+static ssize_t cntr_val_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ int i, ret = 0;
+ u32 val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ if (!drvdata->enable) {
+ spin_lock(&drvdata->spinlock);
+ for (i = 0; i < drvdata->nr_cntr; i++)
+ ret += sprintf(buf, "counter %d: %x\n",
+ i, drvdata->cntr_val[i]);
+ spin_unlock(&drvdata->spinlock);
+ return ret;
+ }
+
+ for (i = 0; i < drvdata->nr_cntr; i++) {
+ val = etm_readl(drvdata, ETMCNTVRn(i));
+ ret += sprintf(buf, "counter %d: %x\n", i, val);
+ }
+
+ return ret;
+}
+
+static ssize_t cntr_val_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ int ret;
+ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ ret = kstrtoul(buf, 16, &val);
+ if (ret)
+ return ret;
+
+ spin_lock(&drvdata->spinlock);
+ drvdata->cntr_val[drvdata->cntr_idx] = val;
+ spin_unlock(&drvdata->spinlock);
+
+ return size;
+}
+static DEVICE_ATTR_RW(cntr_val);
+
+static ssize_t seq_12_event_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = drvdata->seq_12_event;
+ return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t seq_12_event_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ int ret;
+ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ ret = kstrtoul(buf, 16, &val);
+ if (ret)
+ return ret;
+
+ drvdata->seq_12_event = val & ETM_EVENT_MASK;
+ return size;
+}
+static DEVICE_ATTR_RW(seq_12_event);
+
+static ssize_t seq_21_event_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = drvdata->seq_21_event;
+ return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t seq_21_event_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ int ret;
+ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ ret = kstrtoul(buf, 16, &val);
+ if (ret)
+ return ret;
+
+ drvdata->seq_21_event = val & ETM_EVENT_MASK;
+ return size;
+}
+static DEVICE_ATTR_RW(seq_21_event);
+
+static ssize_t seq_23_event_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = drvdata->seq_23_event;
+ return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t seq_23_event_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ int ret;
+ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ ret = kstrtoul(buf, 16, &val);
+ if (ret)
+ return ret;
+
+ drvdata->seq_23_event = val & ETM_EVENT_MASK;
+ return size;
+}
+static DEVICE_ATTR_RW(seq_23_event);
+
+static ssize_t seq_31_event_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = drvdata->seq_31_event;
+ return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t seq_31_event_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ int ret;
+ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ ret = kstrtoul(buf, 16, &val);
+ if (ret)
+ return ret;
+
+ drvdata->seq_31_event = val & ETM_EVENT_MASK;
+ return size;
+}
+static DEVICE_ATTR_RW(seq_31_event);
+
+static ssize_t seq_32_event_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = drvdata->seq_32_event;
+ return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t seq_32_event_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ int ret;
+ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ ret = kstrtoul(buf, 16, &val);
+ if (ret)
+ return ret;
+
+ drvdata->seq_32_event = val & ETM_EVENT_MASK;
+ return size;
+}
+static DEVICE_ATTR_RW(seq_32_event);
+
+static ssize_t seq_13_event_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = drvdata->seq_13_event;
+ return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t seq_13_event_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ int ret;
+ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ ret = kstrtoul(buf, 16, &val);
+ if (ret)
+ return ret;
+
+ drvdata->seq_13_event = val & ETM_EVENT_MASK;
+ return size;
+}
+static DEVICE_ATTR_RW(seq_13_event);
+
+static ssize_t seq_curr_state_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ unsigned long val, flags;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ if (!drvdata->enable) {
+ val = drvdata->seq_curr_state;
+ goto out;
+ }
+
+ pm_runtime_get_sync(drvdata->dev);
+ spin_lock_irqsave(&drvdata->spinlock, flags);
+
+ CS_UNLOCK(drvdata->base);
+ val = (etm_readl(drvdata, ETMSQR) & ETM_SQR_MASK);
+ CS_LOCK(drvdata->base);
+
+ spin_unlock_irqrestore(&drvdata->spinlock, flags);
+ pm_runtime_put(drvdata->dev);
+out:
+ return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t seq_curr_state_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ int ret;
+ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ ret = kstrtoul(buf, 16, &val);
+ if (ret)
+ return ret;
+
+ if (val > ETM_SEQ_STATE_MAX_VAL)
+ return -EINVAL;
+
+ drvdata->seq_curr_state = val;
+
+ return size;
+}
+static DEVICE_ATTR_RW(seq_curr_state);
+
+static ssize_t ctxid_idx_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = drvdata->ctxid_idx;
+ return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t ctxid_idx_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ int ret;
+ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ ret = kstrtoul(buf, 16, &val);
+ if (ret)
+ return ret;
+
+ if (val >= drvdata->nr_ctxid_cmp)
+ return -EINVAL;
+
+ /*
+ * Use spinlock to ensure index doesn't change while it gets
+ * dereferenced multiple times within a spinlock block elsewhere.
+ */
+ spin_lock(&drvdata->spinlock);
+ drvdata->ctxid_idx = val;
+ spin_unlock(&drvdata->spinlock);
+
+ return size;
+}
+static DEVICE_ATTR_RW(ctxid_idx);
+
+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_vpid[drvdata->ctxid_idx];
+ spin_unlock(&drvdata->spinlock);
+
+ return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t ctxid_pid_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ int ret;
+ unsigned long vpid, pid;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ ret = kstrtoul(buf, 16, &vpid);
+ if (ret)
+ return ret;
+
+ pid = coresight_vpid_to_pid(vpid);
+
+ spin_lock(&drvdata->spinlock);
+ drvdata->ctxid_pid[drvdata->ctxid_idx] = pid;
+ drvdata->ctxid_vpid[drvdata->ctxid_idx] = vpid;
+ spin_unlock(&drvdata->spinlock);
+
+ return size;
+}
+static DEVICE_ATTR_RW(ctxid_pid);
+
+static ssize_t ctxid_mask_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = drvdata->ctxid_mask;
+ return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t ctxid_mask_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ int ret;
+ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ ret = kstrtoul(buf, 16, &val);
+ if (ret)
+ return ret;
+
+ drvdata->ctxid_mask = val;
+ return size;
+}
+static DEVICE_ATTR_RW(ctxid_mask);
+
+static ssize_t sync_freq_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = drvdata->sync_freq;
+ return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t sync_freq_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ int ret;
+ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ ret = kstrtoul(buf, 16, &val);
+ if (ret)
+ return ret;
+
+ drvdata->sync_freq = val & ETM_SYNC_MASK;
+ return size;
+}
+static DEVICE_ATTR_RW(sync_freq);
+
+static ssize_t timestamp_event_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = drvdata->timestamp_event;
+ return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t timestamp_event_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ int ret;
+ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ ret = kstrtoul(buf, 16, &val);
+ if (ret)
+ return ret;
+
+ drvdata->timestamp_event = val & ETM_EVENT_MASK;
+ return size;
+}
+static DEVICE_ATTR_RW(timestamp_event);
+
+static ssize_t cpu_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ int val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = drvdata->cpu;
+ return scnprintf(buf, PAGE_SIZE, "%d\n", val);
+
+}
+static DEVICE_ATTR_RO(cpu);
+
+static ssize_t traceid_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = etm_get_trace_id(drvdata);
+
+ return sprintf(buf, "%#lx\n", val);
+}
+
+static ssize_t traceid_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ int ret;
+ unsigned long val;
+ struct etm_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ ret = kstrtoul(buf, 16, &val);
+ if (ret)
+ return ret;
+
+ drvdata->traceid = val & ETM_TRACEID_MASK;
+ return size;
+}
+static DEVICE_ATTR_RW(traceid);
+
+static struct attribute *coresight_etm_attrs[] = {
+ &dev_attr_nr_addr_cmp.attr,
+ &dev_attr_nr_cntr.attr,
+ &dev_attr_nr_ctxid_cmp.attr,
+ &dev_attr_etmsr.attr,
+ &dev_attr_reset.attr,
+ &dev_attr_mode.attr,
+ &dev_attr_trigger_event.attr,
+ &dev_attr_enable_event.attr,
+ &dev_attr_fifofull_level.attr,
+ &dev_attr_addr_idx.attr,
+ &dev_attr_addr_single.attr,
+ &dev_attr_addr_range.attr,
+ &dev_attr_addr_start.attr,
+ &dev_attr_addr_stop.attr,
+ &dev_attr_addr_acctype.attr,
+ &dev_attr_cntr_idx.attr,
+ &dev_attr_cntr_rld_val.attr,
+ &dev_attr_cntr_event.attr,
+ &dev_attr_cntr_rld_event.attr,
+ &dev_attr_cntr_val.attr,
+ &dev_attr_seq_12_event.attr,
+ &dev_attr_seq_21_event.attr,
+ &dev_attr_seq_23_event.attr,
+ &dev_attr_seq_31_event.attr,
+ &dev_attr_seq_32_event.attr,
+ &dev_attr_seq_13_event.attr,
+ &dev_attr_seq_curr_state.attr,
+ &dev_attr_ctxid_idx.attr,
+ &dev_attr_ctxid_pid.attr,
+ &dev_attr_ctxid_mask.attr,
+ &dev_attr_sync_freq.attr,
+ &dev_attr_timestamp_event.attr,
+ &dev_attr_traceid.attr,
+ &dev_attr_cpu.attr,
+ NULL,
+};
+
+#define coresight_simple_func(name, offset) \
+static ssize_t name##_show(struct device *_dev, \
+ struct device_attribute *attr, char *buf) \
+{ \
+ struct etm_drvdata *drvdata = dev_get_drvdata(_dev->parent); \
+ return scnprintf(buf, PAGE_SIZE, "0x%x\n", \
+ readl_relaxed(drvdata->base + offset)); \
+} \
+DEVICE_ATTR_RO(name)
+
+coresight_simple_func(etmccr, ETMCCR);
+coresight_simple_func(etmccer, ETMCCER);
+coresight_simple_func(etmscr, ETMSCR);
+coresight_simple_func(etmidr, ETMIDR);
+coresight_simple_func(etmcr, ETMCR);
+coresight_simple_func(etmtraceidr, ETMTRACEIDR);
+coresight_simple_func(etmteevr, ETMTEEVR);
+coresight_simple_func(etmtssvr, ETMTSSCR);
+coresight_simple_func(etmtecr1, ETMTECR1);
+coresight_simple_func(etmtecr2, ETMTECR2);
+
+static struct attribute *coresight_etm_mgmt_attrs[] = {
+ &dev_attr_etmccr.attr,
+ &dev_attr_etmccer.attr,
+ &dev_attr_etmscr.attr,
+ &dev_attr_etmidr.attr,
+ &dev_attr_etmcr.attr,
+ &dev_attr_etmtraceidr.attr,
+ &dev_attr_etmteevr.attr,
+ &dev_attr_etmtssvr.attr,
+ &dev_attr_etmtecr1.attr,
+ &dev_attr_etmtecr2.attr,
+ NULL,
+};
+
+static const struct attribute_group coresight_etm_group = {
+ .attrs = coresight_etm_attrs,
+};
+
+static const struct attribute_group coresight_etm_mgmt_group = {
+ .attrs = coresight_etm_mgmt_attrs,
+ .name = "mgmt",
+};
+
+const struct attribute_group *coresight_etm_groups[] = {
+ &coresight_etm_group,
+ &coresight_etm_mgmt_group,
+ NULL,
+};
