--- /dev/null
+/*
+ * 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-etm4x.h"
+
+static int etm4_set_mode_exclude(struct etmv4_drvdata *drvdata, bool exclude)
+{
+ u8 idx = drvdata->addr_idx;
+
+ /*
+ * TRCACATRn.TYPE bit[1:0]: type of comparison
+ * the trace unit performs
+ */
+ if (BMVAL(drvdata->addr_acc[idx], 0, 1) == ETM_INSTR_ADDR) {
+ if (idx % 2 != 0)
+ return -EINVAL;
+
+ /*
+ * We are performing instruction address comparison. Set the
+ * relevant bit of ViewInst Include/Exclude Control register
+ * for corresponding address comparator pair.
+ */
+ if (drvdata->addr_type[idx] != ETM_ADDR_TYPE_RANGE ||
+ drvdata->addr_type[idx + 1] != ETM_ADDR_TYPE_RANGE)
+ return -EINVAL;
+
+ if (exclude == true) {
+ /*
+ * Set exclude bit and unset the include bit
+ * corresponding to comparator pair
+ */
+ drvdata->viiectlr |= BIT(idx / 2 + 16);
+ drvdata->viiectlr &= ~BIT(idx / 2);
+ } else {
+ /*
+ * Set include bit and unset exclude bit
+ * corresponding to comparator pair
+ */
+ drvdata->viiectlr |= BIT(idx / 2);
+ drvdata->viiectlr &= ~BIT(idx / 2 + 16);
+ }
+ }
+ return 0;
+}
+
+static ssize_t nr_pe_cmp_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = drvdata->nr_pe_cmp;
+ return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
+}
+static DEVICE_ATTR_RO(nr_pe_cmp);
+
+static ssize_t nr_addr_cmp_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = drvdata->nr_addr_cmp;
+ return scnprintf(buf, PAGE_SIZE, "%#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 etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = drvdata->nr_cntr;
+ return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
+}
+static DEVICE_ATTR_RO(nr_cntr);
+
+static ssize_t nr_ext_inp_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = drvdata->nr_ext_inp;
+ return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
+}
+static DEVICE_ATTR_RO(nr_ext_inp);
+
+static ssize_t numcidc_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = drvdata->numcidc;
+ return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
+}
+static DEVICE_ATTR_RO(numcidc);
+
+static ssize_t numvmidc_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = drvdata->numvmidc;
+ return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
+}
+static DEVICE_ATTR_RO(numvmidc);
+
+static ssize_t nrseqstate_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = drvdata->nrseqstate;
+ return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
+}
+static DEVICE_ATTR_RO(nrseqstate);
+
+static ssize_t nr_resource_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = drvdata->nr_resource;
+ return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
+}
+static DEVICE_ATTR_RO(nr_resource);
+
+static ssize_t nr_ss_cmp_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = drvdata->nr_ss_cmp;
+ return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
+}
+static DEVICE_ATTR_RO(nr_ss_cmp);
+
+static ssize_t reset_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ int i;
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ if (kstrtoul(buf, 16, &val))
+ return -EINVAL;
+
+ spin_lock(&drvdata->spinlock);
+ if (val)
+ drvdata->mode = 0x0;
+
+ /* Disable data tracing: do not trace load and store data transfers */
+ drvdata->mode &= ~(ETM_MODE_LOAD | ETM_MODE_STORE);
+ drvdata->cfg &= ~(BIT(1) | BIT(2));
+
+ /* Disable data value and data address tracing */
+ drvdata->mode &= ~(ETM_MODE_DATA_TRACE_ADDR |
+ ETM_MODE_DATA_TRACE_VAL);
+ drvdata->cfg &= ~(BIT(16) | BIT(17));
+
+ /* Disable all events tracing */
+ drvdata->eventctrl0 = 0x0;
+ drvdata->eventctrl1 = 0x0;
+
+ /* Disable timestamp event */
+ drvdata->ts_ctrl = 0x0;
+
+ /* Disable stalling */
+ drvdata->stall_ctrl = 0x0;
+
+ /* Reset trace synchronization period to 2^8 = 256 bytes*/
+ if (drvdata->syncpr == false)
+ drvdata->syncfreq = 0x8;
+
+ /*
+ * Enable ViewInst to trace everything with start-stop logic in
+ * started state. ARM recommends start-stop logic is set before
+ * each trace run.
+ */
+ drvdata->vinst_ctrl |= BIT(0);
+ if (drvdata->nr_addr_cmp == true) {
+ drvdata->mode |= ETM_MODE_VIEWINST_STARTSTOP;
+ /* SSSTATUS, bit[9] */
+ drvdata->vinst_ctrl |= BIT(9);
+ }
+
+ /* No address range filtering for ViewInst */
+ drvdata->viiectlr = 0x0;
+
+ /* No start-stop filtering for ViewInst */
+ drvdata->vissctlr = 0x0;
+
+ /* Disable seq events */
+ for (i = 0; i < drvdata->nrseqstate-1; i++)
+ drvdata->seq_ctrl[i] = 0x0;
+ drvdata->seq_rst = 0x0;
+ drvdata->seq_state = 0x0;
+
+ /* Disable external input events */
+ drvdata->ext_inp = 0x0;
+
+ drvdata->cntr_idx = 0x0;
+ for (i = 0; i < drvdata->nr_cntr; i++) {
+ drvdata->cntrldvr[i] = 0x0;
+ drvdata->cntr_ctrl[i] = 0x0;
+ drvdata->cntr_val[i] = 0x0;
+ }
+
+ drvdata->res_idx = 0x0;
+ for (i = 0; i < drvdata->nr_resource; i++)
+ drvdata->res_ctrl[i] = 0x0;
+
+ for (i = 0; i < drvdata->nr_ss_cmp; i++) {
+ drvdata->ss_ctrl[i] = 0x0;
+ drvdata->ss_pe_cmp[i] = 0x0;
+ }
+
+ drvdata->addr_idx = 0x0;
+ for (i = 0; i < drvdata->nr_addr_cmp * 2; i++) {
+ drvdata->addr_val[i] = 0x0;
+ drvdata->addr_acc[i] = 0x0;
+ drvdata->addr_type[i] = ETM_ADDR_TYPE_NONE;
+ }
+
+ drvdata->ctxid_idx = 0x0;
+ for (i = 0; i < drvdata->numcidc; i++) {
+ drvdata->ctxid_pid[i] = 0x0;
+ drvdata->ctxid_vpid[i] = 0x0;
+ }
+
+ drvdata->ctxid_mask0 = 0x0;
+ drvdata->ctxid_mask1 = 0x0;
+
+ drvdata->vmid_idx = 0x0;
+ for (i = 0; i < drvdata->numvmidc; i++)
+ drvdata->vmid_val[i] = 0x0;
+ drvdata->vmid_mask0 = 0x0;
+ drvdata->vmid_mask1 = 0x0;
+
+ drvdata->trcid = drvdata->cpu + 1;
+ 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 etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = drvdata->mode;
+ return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
+}
+
+static ssize_t mode_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ unsigned long val, mode;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ if (kstrtoul(buf, 16, &val))
+ return -EINVAL;
+
+ spin_lock(&drvdata->spinlock);
+ drvdata->mode = val & ETMv4_MODE_ALL;
+
+ if (drvdata->mode & ETM_MODE_EXCLUDE)
+ etm4_set_mode_exclude(drvdata, true);
+ else
+ etm4_set_mode_exclude(drvdata, false);
+
+ if (drvdata->instrp0 == true) {
+ /* start by clearing instruction P0 field */
+ drvdata->cfg &= ~(BIT(1) | BIT(2));
+ if (drvdata->mode & ETM_MODE_LOAD)
+ /* 0b01 Trace load instructions as P0 instructions */
+ drvdata->cfg |= BIT(1);
+ if (drvdata->mode & ETM_MODE_STORE)
+ /* 0b10 Trace store instructions as P0 instructions */
+ drvdata->cfg |= BIT(2);
+ if (drvdata->mode & ETM_MODE_LOAD_STORE)
+ /*
+ * 0b11 Trace load and store instructions
+ * as P0 instructions
+ */
+ drvdata->cfg |= BIT(1) | BIT(2);
+ }
+
+ /* bit[3], Branch broadcast mode */
+ if ((drvdata->mode & ETM_MODE_BB) && (drvdata->trcbb == true))
+ drvdata->cfg |= BIT(3);
+ else
+ drvdata->cfg &= ~BIT(3);
+
+ /* bit[4], Cycle counting instruction trace bit */
+ if ((drvdata->mode & ETMv4_MODE_CYCACC) &&
+ (drvdata->trccci == true))
+ drvdata->cfg |= BIT(4);
+ else
+ drvdata->cfg &= ~BIT(4);
+
+ /* bit[6], Context ID tracing bit */
+ if ((drvdata->mode & ETMv4_MODE_CTXID) && (drvdata->ctxid_size))
+ drvdata->cfg |= BIT(6);
+ else
+ drvdata->cfg &= ~BIT(6);
+
+ if ((drvdata->mode & ETM_MODE_VMID) && (drvdata->vmid_size))
+ drvdata->cfg |= BIT(7);
+ else
+ drvdata->cfg &= ~BIT(7);
+
+ /* bits[10:8], Conditional instruction tracing bit */
+ mode = ETM_MODE_COND(drvdata->mode);
+ if (drvdata->trccond == true) {
+ drvdata->cfg &= ~(BIT(8) | BIT(9) | BIT(10));
+ drvdata->cfg |= mode << 8;
+ }
+
+ /* bit[11], Global timestamp tracing bit */
+ if ((drvdata->mode & ETMv4_MODE_TIMESTAMP) && (drvdata->ts_size))
+ drvdata->cfg |= BIT(11);
+ else
+ drvdata->cfg &= ~BIT(11);
+
+ /* bit[12], Return stack enable bit */
+ if ((drvdata->mode & ETM_MODE_RETURNSTACK) &&
+ (drvdata->retstack == true))
+ drvdata->cfg |= BIT(12);
+ else
+ drvdata->cfg &= ~BIT(12);
+
+ /* bits[14:13], Q element enable field */
+ mode = ETM_MODE_QELEM(drvdata->mode);
+ /* start by clearing QE bits */
+ drvdata->cfg &= ~(BIT(13) | BIT(14));
+ /* if supported, Q elements with instruction counts are enabled */
+ if ((mode & BIT(0)) && (drvdata->q_support & BIT(0)))
+ drvdata->cfg |= BIT(13);
+ /*
+ * if supported, Q elements with and without instruction
+ * counts are enabled
+ */
+ if ((mode & BIT(1)) && (drvdata->q_support & BIT(1)))
+ drvdata->cfg |= BIT(14);
+
+ /* bit[11], AMBA Trace Bus (ATB) trigger enable bit */
+ if ((drvdata->mode & ETM_MODE_ATB_TRIGGER) &&
+ (drvdata->atbtrig == true))
+ drvdata->eventctrl1 |= BIT(11);
+ else
+ drvdata->eventctrl1 &= ~BIT(11);
+
+ /* bit[12], Low-power state behavior override bit */
+ if ((drvdata->mode & ETM_MODE_LPOVERRIDE) &&
+ (drvdata->lpoverride == true))
+ drvdata->eventctrl1 |= BIT(12);
+ else
+ drvdata->eventctrl1 &= ~BIT(12);
+
+ /* bit[8], Instruction stall bit */
+ if (drvdata->mode & ETM_MODE_ISTALL_EN)
+ drvdata->stall_ctrl |= BIT(8);
+ else
+ drvdata->stall_ctrl &= ~BIT(8);
+
+ /* bit[10], Prioritize instruction trace bit */
+ if (drvdata->mode & ETM_MODE_INSTPRIO)
+ drvdata->stall_ctrl |= BIT(10);
+ else
+ drvdata->stall_ctrl &= ~BIT(10);
+
+ /* bit[13], Trace overflow prevention bit */
+ if ((drvdata->mode & ETM_MODE_NOOVERFLOW) &&
+ (drvdata->nooverflow == true))
+ drvdata->stall_ctrl |= BIT(13);
+ else
+ drvdata->stall_ctrl &= ~BIT(13);
+
+ /* bit[9] Start/stop logic control bit */
+ if (drvdata->mode & ETM_MODE_VIEWINST_STARTSTOP)
+ drvdata->vinst_ctrl |= BIT(9);
+ else
+ drvdata->vinst_ctrl &= ~BIT(9);
+
+ /* bit[10], Whether a trace unit must trace a Reset exception */
+ if (drvdata->mode & ETM_MODE_TRACE_RESET)
+ drvdata->vinst_ctrl |= BIT(10);
+ else
+ drvdata->vinst_ctrl &= ~BIT(10);
+
+ /* bit[11], Whether a trace unit must trace a system error exception */
+ if ((drvdata->mode & ETM_MODE_TRACE_ERR) &&
+ (drvdata->trc_error == true))
+ drvdata->vinst_ctrl |= BIT(11);
+ else
+ drvdata->vinst_ctrl &= ~BIT(11);
+
+ spin_unlock(&drvdata->spinlock);
+ return size;
+}
+static DEVICE_ATTR_RW(mode);
+
+static ssize_t pe_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = drvdata->pe_sel;
+ return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
+}
+
+static ssize_t pe_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ if (kstrtoul(buf, 16, &val))
+ return -EINVAL;
+
+ spin_lock(&drvdata->spinlock);
+ if (val > drvdata->nr_pe) {
+ spin_unlock(&drvdata->spinlock);
+ return -EINVAL;
+ }
+
+ drvdata->pe_sel = val;
+ spin_unlock(&drvdata->spinlock);
+ return size;
+}
+static DEVICE_ATTR_RW(pe);
+
+static ssize_t event_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = drvdata->eventctrl0;
+ return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
+}
+
+static ssize_t event_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ if (kstrtoul(buf, 16, &val))
+ return -EINVAL;
+
+ spin_lock(&drvdata->spinlock);
+ switch (drvdata->nr_event) {
+ case 0x0:
+ /* EVENT0, bits[7:0] */
+ drvdata->eventctrl0 = val & 0xFF;
+ break;
+ case 0x1:
+ /* EVENT1, bits[15:8] */
+ drvdata->eventctrl0 = val & 0xFFFF;
+ break;
+ case 0x2:
+ /* EVENT2, bits[23:16] */
+ drvdata->eventctrl0 = val & 0xFFFFFF;
+ break;
+ case 0x3:
+ /* EVENT3, bits[31:24] */
+ drvdata->eventctrl0 = val;
+ break;
+ default:
+ break;
+ }
+ spin_unlock(&drvdata->spinlock);
+ return size;
+}
+static DEVICE_ATTR_RW(event);
+
+static ssize_t event_instren_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = BMVAL(drvdata->eventctrl1, 0, 3);
+ return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
+}
+
+static ssize_t event_instren_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ if (kstrtoul(buf, 16, &val))
+ return -EINVAL;
+
+ spin_lock(&drvdata->spinlock);
+ /* start by clearing all instruction event enable bits */
+ drvdata->eventctrl1 &= ~(BIT(0) | BIT(1) | BIT(2) | BIT(3));
+ switch (drvdata->nr_event) {
+ case 0x0:
+ /* generate Event element for event 1 */
+ drvdata->eventctrl1 |= val & BIT(1);
+ break;
+ case 0x1:
+ /* generate Event element for event 1 and 2 */
+ drvdata->eventctrl1 |= val & (BIT(0) | BIT(1));
+ break;
+ case 0x2:
+ /* generate Event element for event 1, 2 and 3 */
+ drvdata->eventctrl1 |= val & (BIT(0) | BIT(1) | BIT(2));
+ break;
+ case 0x3:
+ /* generate Event element for all 4 events */
+ drvdata->eventctrl1 |= val & 0xF;
+ break;
+ default:
+ break;
+ }
+ spin_unlock(&drvdata->spinlock);
+ return size;
+}
+static DEVICE_ATTR_RW(event_instren);
+
+static ssize_t event_ts_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = drvdata->ts_ctrl;
+ return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
+}
+
+static ssize_t event_ts_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ if (kstrtoul(buf, 16, &val))
+ return -EINVAL;
+ if (!drvdata->ts_size)
+ return -EINVAL;
+
+ drvdata->ts_ctrl = val & ETMv4_EVENT_MASK;
+ return size;
+}
+static DEVICE_ATTR_RW(event_ts);
+
+static ssize_t syncfreq_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = drvdata->syncfreq;
+ return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
+}
+
+static ssize_t syncfreq_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ if (kstrtoul(buf, 16, &val))
+ return -EINVAL;
+ if (drvdata->syncpr == true)
+ return -EINVAL;
+
+ drvdata->syncfreq = val & ETMv4_SYNC_MASK;
+ return size;
+}
+static DEVICE_ATTR_RW(syncfreq);
+
+static ssize_t cyc_threshold_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = drvdata->ccctlr;
+ return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
+}
+
+static ssize_t cyc_threshold_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ if (kstrtoul(buf, 16, &val))
+ return -EINVAL;
+ if (val < drvdata->ccitmin)
+ return -EINVAL;
+
+ drvdata->ccctlr = val & ETM_CYC_THRESHOLD_MASK;
+ return size;
+}
+static DEVICE_ATTR_RW(cyc_threshold);
+
+static ssize_t bb_ctrl_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = drvdata->bb_ctrl;
+ return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
+}
+
+static ssize_t bb_ctrl_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ if (kstrtoul(buf, 16, &val))
+ return -EINVAL;
+ if (drvdata->trcbb == false)
+ return -EINVAL;
+ if (!drvdata->nr_addr_cmp)
+ return -EINVAL;
+ /*
+ * Bit[7:0] selects which address range comparator is used for
+ * branch broadcast control.
+ */
+ if (BMVAL(val, 0, 7) > drvdata->nr_addr_cmp)
+ return -EINVAL;
+
+ drvdata->bb_ctrl = val;
+ return size;
+}
+static DEVICE_ATTR_RW(bb_ctrl);
+
+static ssize_t event_vinst_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = drvdata->vinst_ctrl & ETMv4_EVENT_MASK;
+ return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
+}
+
+static ssize_t event_vinst_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ if (kstrtoul(buf, 16, &val))
+ return -EINVAL;
+
+ spin_lock(&drvdata->spinlock);
+ val &= ETMv4_EVENT_MASK;
+ drvdata->vinst_ctrl &= ~ETMv4_EVENT_MASK;
+ drvdata->vinst_ctrl |= val;
+ spin_unlock(&drvdata->spinlock);
+ return size;
+}
+static DEVICE_ATTR_RW(event_vinst);
+
+static ssize_t s_exlevel_vinst_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = BMVAL(drvdata->vinst_ctrl, 16, 19);
+ return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
+}
+
+static ssize_t s_exlevel_vinst_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ if (kstrtoul(buf, 16, &val))
+ return -EINVAL;
+
+ spin_lock(&drvdata->spinlock);
+ /* clear all EXLEVEL_S bits (bit[18] is never implemented) */
+ drvdata->vinst_ctrl &= ~(BIT(16) | BIT(17) | BIT(19));
+ /* enable instruction tracing for corresponding exception level */
+ val &= drvdata->s_ex_level;
+ drvdata->vinst_ctrl |= (val << 16);
+ spin_unlock(&drvdata->spinlock);
+ return size;
+}
+static DEVICE_ATTR_RW(s_exlevel_vinst);
+
+static ssize_t ns_exlevel_vinst_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ /* EXLEVEL_NS, bits[23:20] */
+ val = BMVAL(drvdata->vinst_ctrl, 20, 23);
+ return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
+}
+
+static ssize_t ns_exlevel_vinst_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ if (kstrtoul(buf, 16, &val))
+ return -EINVAL;
+
+ spin_lock(&drvdata->spinlock);
+ /* clear EXLEVEL_NS bits (bit[23] is never implemented */
+ drvdata->vinst_ctrl &= ~(BIT(20) | BIT(21) | BIT(22));
+ /* enable instruction tracing for corresponding exception level */
+ val &= drvdata->ns_ex_level;
+ drvdata->vinst_ctrl |= (val << 20);
+ spin_unlock(&drvdata->spinlock);
+ return size;
+}
+static DEVICE_ATTR_RW(ns_exlevel_vinst);
+
+static ssize_t addr_idx_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = drvdata->addr_idx;
+ return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
+}
+
+static ssize_t addr_idx_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ if (kstrtoul(buf, 16, &val))
+ return -EINVAL;
+ if (val >= drvdata->nr_addr_cmp * 2)
+ 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_instdatatype_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ ssize_t len;
+ u8 val, idx;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ spin_lock(&drvdata->spinlock);
+ idx = drvdata->addr_idx;
+ val = BMVAL(drvdata->addr_acc[idx], 0, 1);
+ len = scnprintf(buf, PAGE_SIZE, "%s\n",
+ val == ETM_INSTR_ADDR ? "instr" :
+ (val == ETM_DATA_LOAD_ADDR ? "data_load" :
+ (val == ETM_DATA_STORE_ADDR ? "data_store" :
+ "data_load_store")));
+ spin_unlock(&drvdata->spinlock);
+ return len;
+}
+
+static ssize_t addr_instdatatype_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ u8 idx;
+ char str[20] = "";
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ if (strlen(buf) >= 20)
+ return -EINVAL;
+ if (sscanf(buf, "%s", str) != 1)
+ return -EINVAL;
+
+ spin_lock(&drvdata->spinlock);
+ idx = drvdata->addr_idx;
+ if (!strcmp(str, "instr"))
+ /* TYPE, bits[1:0] */
+ drvdata->addr_acc[idx] &= ~(BIT(0) | BIT(1));
+
+ spin_unlock(&drvdata->spinlock);
+ return size;
+}
+static DEVICE_ATTR_RW(addr_instdatatype);
+
+static ssize_t addr_single_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ u8 idx;
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ idx = drvdata->addr_idx;
+ spin_lock(&drvdata->spinlock);
+ if (!(drvdata->addr_type[idx] == ETM_ADDR_TYPE_NONE ||
+ drvdata->addr_type[idx] == ETM_ADDR_TYPE_SINGLE)) {
+ spin_unlock(&drvdata->spinlock);
+ return -EPERM;
+ }
+ val = (unsigned long)drvdata->addr_val[idx];
+ spin_unlock(&drvdata->spinlock);
+ return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
+}
+
+static ssize_t addr_single_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ u8 idx;
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ if (kstrtoul(buf, 16, &val))
+ return -EINVAL;
+
+ 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 -EPERM;
+ }
+
+ drvdata->addr_val[idx] = (u64)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 etmv4_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 = (unsigned long)drvdata->addr_val[idx];
+ val2 = (unsigned long)drvdata->addr_val[idx + 1];
+ spin_unlock(&drvdata->spinlock);
+ return scnprintf(buf, PAGE_SIZE, "%#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 etmv4_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] = (u64)val1;
+ drvdata->addr_type[idx] = ETM_ADDR_TYPE_RANGE;
+ drvdata->addr_val[idx + 1] = (u64)val2;
+ drvdata->addr_type[idx + 1] = ETM_ADDR_TYPE_RANGE;
+ /*
+ * Program include or exclude control bits for vinst or vdata
+ * whenever we change addr comparators to ETM_ADDR_TYPE_RANGE
+ */
+ if (drvdata->mode & ETM_MODE_EXCLUDE)
+ etm4_set_mode_exclude(drvdata, true);
+ else
+ etm4_set_mode_exclude(drvdata, false);
+
+ 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 etmv4_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 = (unsigned long)drvdata->addr_val[idx];
+ spin_unlock(&drvdata->spinlock);
+ return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
+}
+
+static ssize_t addr_start_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ u8 idx;
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ if (kstrtoul(buf, 16, &val))
+ return -EINVAL;
+
+ spin_lock(&drvdata->spinlock);
+ idx = drvdata->addr_idx;
+ if (!drvdata->nr_addr_cmp) {
+ spin_unlock(&drvdata->spinlock);
+ return -EINVAL;
+ }
+ 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] = (u64)val;
+ drvdata->addr_type[idx] = ETM_ADDR_TYPE_START;
+ drvdata->vissctlr |= BIT(idx);
+ /* SSSTATUS, bit[9] - turn on start/stop logic */
+ drvdata->vinst_ctrl |= BIT(9);
+ 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 etmv4_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 = (unsigned long)drvdata->addr_val[idx];
+ spin_unlock(&drvdata->spinlock);
+ return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
+}
+
+static ssize_t addr_stop_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ u8 idx;
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ if (kstrtoul(buf, 16, &val))
+ return -EINVAL;
+
+ spin_lock(&drvdata->spinlock);
+ idx = drvdata->addr_idx;
+ if (!drvdata->nr_addr_cmp) {
+ spin_unlock(&drvdata->spinlock);
+ return -EINVAL;
+ }
+ 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] = (u64)val;
+ drvdata->addr_type[idx] = ETM_ADDR_TYPE_STOP;
+ drvdata->vissctlr |= BIT(idx + 16);
+ /* SSSTATUS, bit[9] - turn on start/stop logic */
+ drvdata->vinst_ctrl |= BIT(9);
+ spin_unlock(&drvdata->spinlock);
+ return size;
+}
+static DEVICE_ATTR_RW(addr_stop);
+
+static ssize_t addr_ctxtype_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ ssize_t len;
+ u8 idx, val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ spin_lock(&drvdata->spinlock);
+ idx = drvdata->addr_idx;
+ /* CONTEXTTYPE, bits[3:2] */
+ val = BMVAL(drvdata->addr_acc[idx], 2, 3);
+ len = scnprintf(buf, PAGE_SIZE, "%s\n", val == ETM_CTX_NONE ? "none" :
+ (val == ETM_CTX_CTXID ? "ctxid" :
+ (val == ETM_CTX_VMID ? "vmid" : "all")));
+ spin_unlock(&drvdata->spinlock);
+ return len;
+}
+
+static ssize_t addr_ctxtype_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ u8 idx;
+ char str[10] = "";
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ if (strlen(buf) >= 10)
+ return -EINVAL;
+ if (sscanf(buf, "%s", str) != 1)
+ return -EINVAL;
+
+ spin_lock(&drvdata->spinlock);
+ idx = drvdata->addr_idx;
+ if (!strcmp(str, "none"))
+ /* start by clearing context type bits */
+ drvdata->addr_acc[idx] &= ~(BIT(2) | BIT(3));
+ else if (!strcmp(str, "ctxid")) {
+ /* 0b01 The trace unit performs a Context ID */
+ if (drvdata->numcidc) {
+ drvdata->addr_acc[idx] |= BIT(2);
+ drvdata->addr_acc[idx] &= ~BIT(3);
+ }
+ } else if (!strcmp(str, "vmid")) {
+ /* 0b10 The trace unit performs a VMID */
+ if (drvdata->numvmidc) {
+ drvdata->addr_acc[idx] &= ~BIT(2);
+ drvdata->addr_acc[idx] |= BIT(3);
+ }
+ } else if (!strcmp(str, "all")) {
+ /*
+ * 0b11 The trace unit performs a Context ID
+ * comparison and a VMID
+ */
+ if (drvdata->numcidc)
+ drvdata->addr_acc[idx] |= BIT(2);
+ if (drvdata->numvmidc)
+ drvdata->addr_acc[idx] |= BIT(3);
+ }
+ spin_unlock(&drvdata->spinlock);
+ return size;
+}
+static DEVICE_ATTR_RW(addr_ctxtype);
+
+static ssize_t addr_context_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ u8 idx;
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ spin_lock(&drvdata->spinlock);
+ idx = drvdata->addr_idx;
+ /* context ID comparator bits[6:4] */
+ val = BMVAL(drvdata->addr_acc[idx], 4, 6);
+ spin_unlock(&drvdata->spinlock);
+ return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
+}
+
+static ssize_t addr_context_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ u8 idx;
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ if (kstrtoul(buf, 16, &val))
+ return -EINVAL;
+ if ((drvdata->numcidc <= 1) && (drvdata->numvmidc <= 1))
+ return -EINVAL;
+ if (val >= (drvdata->numcidc >= drvdata->numvmidc ?
+ drvdata->numcidc : drvdata->numvmidc))
+ return -EINVAL;
+
+ spin_lock(&drvdata->spinlock);
+ idx = drvdata->addr_idx;
+ /* clear context ID comparator bits[6:4] */
+ drvdata->addr_acc[idx] &= ~(BIT(4) | BIT(5) | BIT(6));
+ drvdata->addr_acc[idx] |= (val << 4);
+ spin_unlock(&drvdata->spinlock);
+ return size;
+}
+static DEVICE_ATTR_RW(addr_context);
+
+static ssize_t seq_idx_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = drvdata->seq_idx;
+ return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
+}
+
+static ssize_t seq_idx_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ if (kstrtoul(buf, 16, &val))
+ return -EINVAL;
+ if (val >= drvdata->nrseqstate - 1)
+ 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->seq_idx = val;
+ spin_unlock(&drvdata->spinlock);
+ return size;
+}
+static DEVICE_ATTR_RW(seq_idx);
+
+static ssize_t seq_state_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = drvdata->seq_state;
+ return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
+}
+
+static ssize_t seq_state_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ if (kstrtoul(buf, 16, &val))
+ return -EINVAL;
+ if (val >= drvdata->nrseqstate)
+ return -EINVAL;
+
+ drvdata->seq_state = val;
+ return size;
+}
+static DEVICE_ATTR_RW(seq_state);
+
+static ssize_t seq_event_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ u8 idx;
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ spin_lock(&drvdata->spinlock);
+ idx = drvdata->seq_idx;
+ val = drvdata->seq_ctrl[idx];
+ spin_unlock(&drvdata->spinlock);
+ return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
+}
+
+static ssize_t seq_event_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ u8 idx;
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ if (kstrtoul(buf, 16, &val))
+ return -EINVAL;
+
+ spin_lock(&drvdata->spinlock);
+ idx = drvdata->seq_idx;
+ /* RST, bits[7:0] */
+ drvdata->seq_ctrl[idx] = val & 0xFF;
+ spin_unlock(&drvdata->spinlock);
+ return size;
+}
+static DEVICE_ATTR_RW(seq_event);
+
+static ssize_t seq_reset_event_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = drvdata->seq_rst;
+ return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
+}
+
+static ssize_t seq_reset_event_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ if (kstrtoul(buf, 16, &val))
+ return -EINVAL;
+ if (!(drvdata->nrseqstate))
+ return -EINVAL;
+
+ drvdata->seq_rst = val & ETMv4_EVENT_MASK;
+ return size;
+}
+static DEVICE_ATTR_RW(seq_reset_event);
+
+static ssize_t cntr_idx_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = drvdata->cntr_idx;
+ return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
+}
+
+static ssize_t cntr_idx_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ if (kstrtoul(buf, 16, &val))
+ return -EINVAL;
+ 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 cntrldvr_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ u8 idx;
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ spin_lock(&drvdata->spinlock);
+ idx = drvdata->cntr_idx;
+ val = drvdata->cntrldvr[idx];
+ spin_unlock(&drvdata->spinlock);
+ return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
+}
+
+static ssize_t cntrldvr_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ u8 idx;
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ if (kstrtoul(buf, 16, &val))
+ return -EINVAL;
+ if (val > ETM_CNTR_MAX_VAL)
+ return -EINVAL;
+
+ spin_lock(&drvdata->spinlock);
+ idx = drvdata->cntr_idx;
+ drvdata->cntrldvr[idx] = val;
+ spin_unlock(&drvdata->spinlock);
+ return size;
+}
+static DEVICE_ATTR_RW(cntrldvr);
+
+static ssize_t cntr_val_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ u8 idx;
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ spin_lock(&drvdata->spinlock);
+ idx = drvdata->cntr_idx;
+ val = drvdata->cntr_val[idx];
+ spin_unlock(&drvdata->spinlock);
+ return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
+}
+
+static ssize_t cntr_val_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ u8 idx;
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ if (kstrtoul(buf, 16, &val))
+ return -EINVAL;
+ if (val > ETM_CNTR_MAX_VAL)
+ return -EINVAL;
+
+ spin_lock(&drvdata->spinlock);
+ idx = drvdata->cntr_idx;
+ drvdata->cntr_val[idx] = val;
+ spin_unlock(&drvdata->spinlock);
+ return size;
+}
+static DEVICE_ATTR_RW(cntr_val);
+
+static ssize_t cntr_ctrl_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ u8 idx;
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ spin_lock(&drvdata->spinlock);
+ idx = drvdata->cntr_idx;
+ val = drvdata->cntr_ctrl[idx];
+ spin_unlock(&drvdata->spinlock);
+ return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
+}
+
+static ssize_t cntr_ctrl_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ u8 idx;
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ if (kstrtoul(buf, 16, &val))
+ return -EINVAL;
+
+ spin_lock(&drvdata->spinlock);
+ idx = drvdata->cntr_idx;
+ drvdata->cntr_ctrl[idx] = val;
+ spin_unlock(&drvdata->spinlock);
+ return size;
+}
+static DEVICE_ATTR_RW(cntr_ctrl);
+
+static ssize_t res_idx_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = drvdata->res_idx;
+ return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
+}
+
+static ssize_t res_idx_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ if (kstrtoul(buf, 16, &val))
+ return -EINVAL;
+ /* Resource selector pair 0 is always implemented and reserved */
+ if ((val == 0) || (val >= drvdata->nr_resource))
+ 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->res_idx = val;
+ spin_unlock(&drvdata->spinlock);
+ return size;
+}
+static DEVICE_ATTR_RW(res_idx);
+
+static ssize_t res_ctrl_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ u8 idx;
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ spin_lock(&drvdata->spinlock);
+ idx = drvdata->res_idx;
+ val = drvdata->res_ctrl[idx];
+ spin_unlock(&drvdata->spinlock);
+ return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
+}
+
+static ssize_t res_ctrl_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ u8 idx;
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ if (kstrtoul(buf, 16, &val))
+ return -EINVAL;
+
+ spin_lock(&drvdata->spinlock);
+ idx = drvdata->res_idx;
+ /* For odd idx pair inversal bit is RES0 */
+ if (idx % 2 != 0)
+ /* PAIRINV, bit[21] */
+ val &= ~BIT(21);
+ drvdata->res_ctrl[idx] = val;
+ spin_unlock(&drvdata->spinlock);
+ return size;
+}
+static DEVICE_ATTR_RW(res_ctrl);
+
+static ssize_t ctxid_idx_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = drvdata->ctxid_idx;
+ return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
+}
+
+static ssize_t ctxid_idx_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ if (kstrtoul(buf, 16, &val))
+ return -EINVAL;
+ if (val >= drvdata->numcidc)
+ 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)
+{
+ u8 idx;
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ spin_lock(&drvdata->spinlock);
+ idx = drvdata->ctxid_idx;
+ val = (unsigned long)drvdata->ctxid_vpid[idx];
+ spin_unlock(&drvdata->spinlock);
+ return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
+}
+
+static ssize_t ctxid_pid_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ u8 idx;
+ unsigned long vpid, pid;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ /*
+ * only implemented when ctxid tracing is enabled, i.e. at least one
+ * ctxid comparator is implemented and ctxid is greater than 0 bits
+ * in length
+ */
+ if (!drvdata->ctxid_size || !drvdata->numcidc)
+ return -EINVAL;
+ if (kstrtoul(buf, 16, &vpid))
+ return -EINVAL;
+
+ pid = coresight_vpid_to_pid(vpid);
+
+ spin_lock(&drvdata->spinlock);
+ idx = drvdata->ctxid_idx;
+ drvdata->ctxid_pid[idx] = (u64)pid;
+ drvdata->ctxid_vpid[idx] = (u64)vpid;
+ spin_unlock(&drvdata->spinlock);
+ return size;
+}
+static DEVICE_ATTR_RW(ctxid_pid);
+
+static ssize_t ctxid_masks_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ unsigned long val1, val2;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ spin_lock(&drvdata->spinlock);
+ val1 = drvdata->ctxid_mask0;
+ val2 = drvdata->ctxid_mask1;
+ spin_unlock(&drvdata->spinlock);
+ return scnprintf(buf, PAGE_SIZE, "%#lx %#lx\n", val1, val2);
+}
+
+static ssize_t ctxid_masks_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ u8 i, j, maskbyte;
+ unsigned long val1, val2, mask;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ /*
+ * only implemented when ctxid tracing is enabled, i.e. at least one
+ * ctxid comparator is implemented and ctxid is greater than 0 bits
+ * in length
+ */
+ if (!drvdata->ctxid_size || !drvdata->numcidc)
+ return -EINVAL;
+ if (sscanf(buf, "%lx %lx", &val1, &val2) != 2)
+ return -EINVAL;
+
+ spin_lock(&drvdata->spinlock);
+ /*
+ * each byte[0..3] controls mask value applied to ctxid
+ * comparator[0..3]
+ */
+ switch (drvdata->numcidc) {
+ case 0x1:
+ /* COMP0, bits[7:0] */
+ drvdata->ctxid_mask0 = val1 & 0xFF;
+ break;
+ case 0x2:
+ /* COMP1, bits[15:8] */
+ drvdata->ctxid_mask0 = val1 & 0xFFFF;
+ break;
+ case 0x3:
+ /* COMP2, bits[23:16] */
+ drvdata->ctxid_mask0 = val1 & 0xFFFFFF;
+ break;
+ case 0x4:
+ /* COMP3, bits[31:24] */
+ drvdata->ctxid_mask0 = val1;
+ break;
+ case 0x5:
+ /* COMP4, bits[7:0] */
+ drvdata->ctxid_mask0 = val1;
+ drvdata->ctxid_mask1 = val2 & 0xFF;
+ break;
+ case 0x6:
+ /* COMP5, bits[15:8] */
+ drvdata->ctxid_mask0 = val1;
+ drvdata->ctxid_mask1 = val2 & 0xFFFF;
+ break;
+ case 0x7:
+ /* COMP6, bits[23:16] */
+ drvdata->ctxid_mask0 = val1;
+ drvdata->ctxid_mask1 = val2 & 0xFFFFFF;
+ break;
+ case 0x8:
+ /* COMP7, bits[31:24] */
+ drvdata->ctxid_mask0 = val1;
+ drvdata->ctxid_mask1 = val2;
+ break;
+ default:
+ break;
+ }
+ /*
+ * If software sets a mask bit to 1, it must program relevant byte
+ * of ctxid comparator value 0x0, otherwise behavior is unpredictable.
+ * For example, if bit[3] of ctxid_mask0 is 1, we must clear bits[31:24]
+ * of ctxid comparator0 value (corresponding to byte 0) register.
+ */
+ mask = drvdata->ctxid_mask0;
+ for (i = 0; i < drvdata->numcidc; i++) {
+ /* mask value of corresponding ctxid comparator */
+ maskbyte = mask & ETMv4_EVENT_MASK;
+ /*
+ * each bit corresponds to a byte of respective ctxid comparator
+ * value register
+ */
+ for (j = 0; j < 8; j++) {
+ if (maskbyte & 1)
+ drvdata->ctxid_pid[i] &= ~(0xFF << (j * 8));
+ maskbyte >>= 1;
+ }
+ /* Select the next ctxid comparator mask value */
+ if (i == 3)
+ /* ctxid comparators[4-7] */
+ mask = drvdata->ctxid_mask1;
+ else
+ mask >>= 0x8;
+ }
+
+ spin_unlock(&drvdata->spinlock);
+ return size;
+}
+static DEVICE_ATTR_RW(ctxid_masks);
+
+static ssize_t vmid_idx_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = drvdata->vmid_idx;
+ return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
+}
+
+static ssize_t vmid_idx_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ if (kstrtoul(buf, 16, &val))
+ return -EINVAL;
+ if (val >= drvdata->numvmidc)
+ 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->vmid_idx = val;
+ spin_unlock(&drvdata->spinlock);
+ return size;
+}
+static DEVICE_ATTR_RW(vmid_idx);
+
+static ssize_t vmid_val_show(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = (unsigned long)drvdata->vmid_val[drvdata->vmid_idx];
+ return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
+}
+
+static ssize_t vmid_val_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ unsigned long val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ /*
+ * only implemented when vmid tracing is enabled, i.e. at least one
+ * vmid comparator is implemented and at least 8 bit vmid size
+ */
+ if (!drvdata->vmid_size || !drvdata->numvmidc)
+ return -EINVAL;
+ if (kstrtoul(buf, 16, &val))
+ return -EINVAL;
+
+ spin_lock(&drvdata->spinlock);
+ drvdata->vmid_val[drvdata->vmid_idx] = (u64)val;
+ spin_unlock(&drvdata->spinlock);
+ return size;
+}
+static DEVICE_ATTR_RW(vmid_val);
+
+static ssize_t vmid_masks_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ unsigned long val1, val2;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ spin_lock(&drvdata->spinlock);
+ val1 = drvdata->vmid_mask0;
+ val2 = drvdata->vmid_mask1;
+ spin_unlock(&drvdata->spinlock);
+ return scnprintf(buf, PAGE_SIZE, "%#lx %#lx\n", val1, val2);
+}
+
+static ssize_t vmid_masks_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t size)
+{
+ u8 i, j, maskbyte;
+ unsigned long val1, val2, mask;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+ /*
+ * only implemented when vmid tracing is enabled, i.e. at least one
+ * vmid comparator is implemented and at least 8 bit vmid size
+ */
+ if (!drvdata->vmid_size || !drvdata->numvmidc)
+ return -EINVAL;
+ if (sscanf(buf, "%lx %lx", &val1, &val2) != 2)
+ return -EINVAL;
+
+ spin_lock(&drvdata->spinlock);
+
+ /*
+ * each byte[0..3] controls mask value applied to vmid
+ * comparator[0..3]
+ */
+ switch (drvdata->numvmidc) {
+ case 0x1:
+ /* COMP0, bits[7:0] */
+ drvdata->vmid_mask0 = val1 & 0xFF;
+ break;
+ case 0x2:
+ /* COMP1, bits[15:8] */
+ drvdata->vmid_mask0 = val1 & 0xFFFF;
+ break;
+ case 0x3:
+ /* COMP2, bits[23:16] */
+ drvdata->vmid_mask0 = val1 & 0xFFFFFF;
+ break;
+ case 0x4:
+ /* COMP3, bits[31:24] */
+ drvdata->vmid_mask0 = val1;
+ break;
+ case 0x5:
+ /* COMP4, bits[7:0] */
+ drvdata->vmid_mask0 = val1;
+ drvdata->vmid_mask1 = val2 & 0xFF;
+ break;
+ case 0x6:
+ /* COMP5, bits[15:8] */
+ drvdata->vmid_mask0 = val1;
+ drvdata->vmid_mask1 = val2 & 0xFFFF;
+ break;
+ case 0x7:
+ /* COMP6, bits[23:16] */
+ drvdata->vmid_mask0 = val1;
+ drvdata->vmid_mask1 = val2 & 0xFFFFFF;
+ break;
+ case 0x8:
+ /* COMP7, bits[31:24] */
+ drvdata->vmid_mask0 = val1;
+ drvdata->vmid_mask1 = val2;
+ break;
+ default:
+ break;
+ }
+
+ /*
+ * If software sets a mask bit to 1, it must program relevant byte
+ * of vmid comparator value 0x0, otherwise behavior is unpredictable.
+ * For example, if bit[3] of vmid_mask0 is 1, we must clear bits[31:24]
+ * of vmid comparator0 value (corresponding to byte 0) register.
+ */
+ mask = drvdata->vmid_mask0;
+ for (i = 0; i < drvdata->numvmidc; i++) {
+ /* mask value of corresponding vmid comparator */
+ maskbyte = mask & ETMv4_EVENT_MASK;
+ /*
+ * each bit corresponds to a byte of respective vmid comparator
+ * value register
+ */
+ for (j = 0; j < 8; j++) {
+ if (maskbyte & 1)
+ drvdata->vmid_val[i] &= ~(0xFF << (j * 8));
+ maskbyte >>= 1;
+ }
+ /* Select the next vmid comparator mask value */
+ if (i == 3)
+ /* vmid comparators[4-7] */
+ mask = drvdata->vmid_mask1;
+ else
+ mask >>= 0x8;
+ }
+ spin_unlock(&drvdata->spinlock);
+ return size;
+}
+static DEVICE_ATTR_RW(vmid_masks);
+
+static ssize_t cpu_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ int val;
+ struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
+
+ val = drvdata->cpu;
+ return scnprintf(buf, PAGE_SIZE, "%d\n", val);
+
+}
+static DEVICE_ATTR_RO(cpu);
+
+static struct attribute *coresight_etmv4_attrs[] = {
+ &dev_attr_nr_pe_cmp.attr,
+ &dev_attr_nr_addr_cmp.attr,
+ &dev_attr_nr_cntr.attr,
+ &dev_attr_nr_ext_inp.attr,
+ &dev_attr_numcidc.attr,
+ &dev_attr_numvmidc.attr,
+ &dev_attr_nrseqstate.attr,
+ &dev_attr_nr_resource.attr,
+ &dev_attr_nr_ss_cmp.attr,
+ &dev_attr_reset.attr,
+ &dev_attr_mode.attr,
+ &dev_attr_pe.attr,
+ &dev_attr_event.attr,
+ &dev_attr_event_instren.attr,
+ &dev_attr_event_ts.attr,
+ &dev_attr_syncfreq.attr,
+ &dev_attr_cyc_threshold.attr,
+ &dev_attr_bb_ctrl.attr,
+ &dev_attr_event_vinst.attr,
+ &dev_attr_s_exlevel_vinst.attr,
+ &dev_attr_ns_exlevel_vinst.attr,
+ &dev_attr_addr_idx.attr,
+ &dev_attr_addr_instdatatype.attr,
+ &dev_attr_addr_single.attr,
+ &dev_attr_addr_range.attr,
+ &dev_attr_addr_start.attr,
+ &dev_attr_addr_stop.attr,
+ &dev_attr_addr_ctxtype.attr,
+ &dev_attr_addr_context.attr,
+ &dev_attr_seq_idx.attr,
+ &dev_attr_seq_state.attr,
+ &dev_attr_seq_event.attr,
+ &dev_attr_seq_reset_event.attr,
+ &dev_attr_cntr_idx.attr,
+ &dev_attr_cntrldvr.attr,
+ &dev_attr_cntr_val.attr,
+ &dev_attr_cntr_ctrl.attr,
+ &dev_attr_res_idx.attr,
+ &dev_attr_res_ctrl.attr,
+ &dev_attr_ctxid_idx.attr,
+ &dev_attr_ctxid_pid.attr,
+ &dev_attr_ctxid_masks.attr,
+ &dev_attr_vmid_idx.attr,
+ &dev_attr_vmid_val.attr,
+ &dev_attr_vmid_masks.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 etmv4_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(trcoslsr, TRCOSLSR);
+coresight_simple_func(trcpdcr, TRCPDCR);
+coresight_simple_func(trcpdsr, TRCPDSR);
+coresight_simple_func(trclsr, TRCLSR);
+coresight_simple_func(trcauthstatus, TRCAUTHSTATUS);
+coresight_simple_func(trcdevid, TRCDEVID);
+coresight_simple_func(trcdevtype, TRCDEVTYPE);
+coresight_simple_func(trcpidr0, TRCPIDR0);
+coresight_simple_func(trcpidr1, TRCPIDR1);
+coresight_simple_func(trcpidr2, TRCPIDR2);
+coresight_simple_func(trcpidr3, TRCPIDR3);
+
+static struct attribute *coresight_etmv4_mgmt_attrs[] = {
+ &dev_attr_trcoslsr.attr,
+ &dev_attr_trcpdcr.attr,
+ &dev_attr_trcpdsr.attr,
+ &dev_attr_trclsr.attr,
+ &dev_attr_trcauthstatus.attr,
+ &dev_attr_trcdevid.attr,
+ &dev_attr_trcdevtype.attr,
+ &dev_attr_trcpidr0.attr,
+ &dev_attr_trcpidr1.attr,
+ &dev_attr_trcpidr2.attr,
+ &dev_attr_trcpidr3.attr,
+ NULL,
+};
+
+coresight_simple_func(trcidr0, TRCIDR0);
+coresight_simple_func(trcidr1, TRCIDR1);
+coresight_simple_func(trcidr2, TRCIDR2);
+coresight_simple_func(trcidr3, TRCIDR3);
+coresight_simple_func(trcidr4, TRCIDR4);
+coresight_simple_func(trcidr5, TRCIDR5);
+/* trcidr[6,7] are reserved */
+coresight_simple_func(trcidr8, TRCIDR8);
+coresight_simple_func(trcidr9, TRCIDR9);
+coresight_simple_func(trcidr10, TRCIDR10);
+coresight_simple_func(trcidr11, TRCIDR11);
+coresight_simple_func(trcidr12, TRCIDR12);
+coresight_simple_func(trcidr13, TRCIDR13);
+
+static struct attribute *coresight_etmv4_trcidr_attrs[] = {
+ &dev_attr_trcidr0.attr,
+ &dev_attr_trcidr1.attr,
+ &dev_attr_trcidr2.attr,
+ &dev_attr_trcidr3.attr,
+ &dev_attr_trcidr4.attr,
+ &dev_attr_trcidr5.attr,
+ /* trcidr[6,7] are reserved */
+ &dev_attr_trcidr8.attr,
+ &dev_attr_trcidr9.attr,
+ &dev_attr_trcidr10.attr,
+ &dev_attr_trcidr11.attr,
+ &dev_attr_trcidr12.attr,
+ &dev_attr_trcidr13.attr,
+ NULL,
+};
+
+static const struct attribute_group coresight_etmv4_group = {
+ .attrs = coresight_etmv4_attrs,
+};
+
+static const struct attribute_group coresight_etmv4_mgmt_group = {
+ .attrs = coresight_etmv4_mgmt_attrs,
+ .name = "mgmt",
+};
+
+static const struct attribute_group coresight_etmv4_trcidr_group = {
+ .attrs = coresight_etmv4_trcidr_attrs,
+ .name = "trcidr",
+};
+
+const struct attribute_group *coresight_etmv4_groups[] = {
+ &coresight_etmv4_group,
+ &coresight_etmv4_mgmt_group,
+ &coresight_etmv4_trcidr_group,
+ NULL,
+};
.source_ops = &etm4_source_ops,
};
-static int etm4_set_mode_exclude(struct etmv4_drvdata *drvdata, bool exclude)
-{
- u8 idx = drvdata->addr_idx;
-
- /*
- * TRCACATRn.TYPE bit[1:0]: type of comparison
- * the trace unit performs
- */
- if (BMVAL(drvdata->addr_acc[idx], 0, 1) == ETM_INSTR_ADDR) {
- if (idx % 2 != 0)
- return -EINVAL;
-
- /*
- * We are performing instruction address comparison. Set the
- * relevant bit of ViewInst Include/Exclude Control register
- * for corresponding address comparator pair.
- */
- if (drvdata->addr_type[idx] != ETM_ADDR_TYPE_RANGE ||
- drvdata->addr_type[idx + 1] != ETM_ADDR_TYPE_RANGE)
- return -EINVAL;
-
- if (exclude == true) {
- /*
- * Set exclude bit and unset the include bit
- * corresponding to comparator pair
- */
- drvdata->viiectlr |= BIT(idx / 2 + 16);
- drvdata->viiectlr &= ~BIT(idx / 2);
- } else {
- /*
- * Set include bit and unset exclude bit
- * corresponding to comparator pair
- */
- drvdata->viiectlr |= BIT(idx / 2);
- drvdata->viiectlr &= ~BIT(idx / 2 + 16);
- }
- }
- return 0;
-}
-
-static ssize_t nr_pe_cmp_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- val = drvdata->nr_pe_cmp;
- return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
-}
-static DEVICE_ATTR_RO(nr_pe_cmp);
-
-static ssize_t nr_addr_cmp_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- val = drvdata->nr_addr_cmp;
- return scnprintf(buf, PAGE_SIZE, "%#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 etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- val = drvdata->nr_cntr;
- return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
-}
-static DEVICE_ATTR_RO(nr_cntr);
-
-static ssize_t nr_ext_inp_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- val = drvdata->nr_ext_inp;
- return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
-}
-static DEVICE_ATTR_RO(nr_ext_inp);
-
-static ssize_t numcidc_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- val = drvdata->numcidc;
- return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
-}
-static DEVICE_ATTR_RO(numcidc);
-
-static ssize_t numvmidc_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- val = drvdata->numvmidc;
- return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
-}
-static DEVICE_ATTR_RO(numvmidc);
-
-static ssize_t nrseqstate_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- val = drvdata->nrseqstate;
- return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
-}
-static DEVICE_ATTR_RO(nrseqstate);
-
-static ssize_t nr_resource_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- val = drvdata->nr_resource;
- return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
-}
-static DEVICE_ATTR_RO(nr_resource);
-
-static ssize_t nr_ss_cmp_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- val = drvdata->nr_ss_cmp;
- return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
-}
-static DEVICE_ATTR_RO(nr_ss_cmp);
-
-static ssize_t reset_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t size)
-{
- int i;
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- if (kstrtoul(buf, 16, &val))
- return -EINVAL;
-
- spin_lock(&drvdata->spinlock);
- if (val)
- drvdata->mode = 0x0;
-
- /* Disable data tracing: do not trace load and store data transfers */
- drvdata->mode &= ~(ETM_MODE_LOAD | ETM_MODE_STORE);
- drvdata->cfg &= ~(BIT(1) | BIT(2));
-
- /* Disable data value and data address tracing */
- drvdata->mode &= ~(ETM_MODE_DATA_TRACE_ADDR |
- ETM_MODE_DATA_TRACE_VAL);
- drvdata->cfg &= ~(BIT(16) | BIT(17));
-
- /* Disable all events tracing */
- drvdata->eventctrl0 = 0x0;
- drvdata->eventctrl1 = 0x0;
-
- /* Disable timestamp event */
- drvdata->ts_ctrl = 0x0;
-
- /* Disable stalling */
- drvdata->stall_ctrl = 0x0;
-
- /* Reset trace synchronization period to 2^8 = 256 bytes*/
- if (drvdata->syncpr == false)
- drvdata->syncfreq = 0x8;
-
- /*
- * Enable ViewInst to trace everything with start-stop logic in
- * started state. ARM recommends start-stop logic is set before
- * each trace run.
- */
- drvdata->vinst_ctrl |= BIT(0);
- if (drvdata->nr_addr_cmp == true) {
- drvdata->mode |= ETM_MODE_VIEWINST_STARTSTOP;
- /* SSSTATUS, bit[9] */
- drvdata->vinst_ctrl |= BIT(9);
- }
-
- /* No address range filtering for ViewInst */
- drvdata->viiectlr = 0x0;
-
- /* No start-stop filtering for ViewInst */
- drvdata->vissctlr = 0x0;
-
- /* Disable seq events */
- for (i = 0; i < drvdata->nrseqstate-1; i++)
- drvdata->seq_ctrl[i] = 0x0;
- drvdata->seq_rst = 0x0;
- drvdata->seq_state = 0x0;
-
- /* Disable external input events */
- drvdata->ext_inp = 0x0;
-
- drvdata->cntr_idx = 0x0;
- for (i = 0; i < drvdata->nr_cntr; i++) {
- drvdata->cntrldvr[i] = 0x0;
- drvdata->cntr_ctrl[i] = 0x0;
- drvdata->cntr_val[i] = 0x0;
- }
-
- /* Resource selector pair 0 is always implemented and reserved */
- drvdata->res_idx = 0x2;
- for (i = 2; i < drvdata->nr_resource * 2; i++)
- drvdata->res_ctrl[i] = 0x0;
-
- for (i = 0; i < drvdata->nr_ss_cmp; i++) {
- drvdata->ss_ctrl[i] = 0x0;
- drvdata->ss_pe_cmp[i] = 0x0;
- }
-
- drvdata->addr_idx = 0x0;
- for (i = 0; i < drvdata->nr_addr_cmp * 2; i++) {
- drvdata->addr_val[i] = 0x0;
- drvdata->addr_acc[i] = 0x0;
- drvdata->addr_type[i] = ETM_ADDR_TYPE_NONE;
- }
-
- drvdata->ctxid_idx = 0x0;
- for (i = 0; i < drvdata->numcidc; i++) {
- drvdata->ctxid_pid[i] = 0x0;
- drvdata->ctxid_vpid[i] = 0x0;
- }
-
- drvdata->ctxid_mask0 = 0x0;
- drvdata->ctxid_mask1 = 0x0;
-
- drvdata->vmid_idx = 0x0;
- for (i = 0; i < drvdata->numvmidc; i++)
- drvdata->vmid_val[i] = 0x0;
- drvdata->vmid_mask0 = 0x0;
- drvdata->vmid_mask1 = 0x0;
-
- drvdata->trcid = drvdata->cpu + 1;
- 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 etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- val = drvdata->mode;
- return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
-}
-
-static ssize_t mode_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t size)
-{
- unsigned long val, mode;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- if (kstrtoul(buf, 16, &val))
- return -EINVAL;
-
- spin_lock(&drvdata->spinlock);
- drvdata->mode = val & ETMv4_MODE_ALL;
-
- if (drvdata->mode & ETM_MODE_EXCLUDE)
- etm4_set_mode_exclude(drvdata, true);
- else
- etm4_set_mode_exclude(drvdata, false);
-
- if (drvdata->instrp0 == true) {
- /* start by clearing instruction P0 field */
- drvdata->cfg &= ~(BIT(1) | BIT(2));
- if (drvdata->mode & ETM_MODE_LOAD)
- /* 0b01 Trace load instructions as P0 instructions */
- drvdata->cfg |= BIT(1);
- if (drvdata->mode & ETM_MODE_STORE)
- /* 0b10 Trace store instructions as P0 instructions */
- drvdata->cfg |= BIT(2);
- if (drvdata->mode & ETM_MODE_LOAD_STORE)
- /*
- * 0b11 Trace load and store instructions
- * as P0 instructions
- */
- drvdata->cfg |= BIT(1) | BIT(2);
- }
-
- /* bit[3], Branch broadcast mode */
- if ((drvdata->mode & ETM_MODE_BB) && (drvdata->trcbb == true))
- drvdata->cfg |= BIT(3);
- else
- drvdata->cfg &= ~BIT(3);
-
- /* bit[4], Cycle counting instruction trace bit */
- if ((drvdata->mode & ETMv4_MODE_CYCACC) &&
- (drvdata->trccci == true))
- drvdata->cfg |= BIT(4);
- else
- drvdata->cfg &= ~BIT(4);
-
- /* bit[6], Context ID tracing bit */
- if ((drvdata->mode & ETMv4_MODE_CTXID) && (drvdata->ctxid_size))
- drvdata->cfg |= BIT(6);
- else
- drvdata->cfg &= ~BIT(6);
-
- if ((drvdata->mode & ETM_MODE_VMID) && (drvdata->vmid_size))
- drvdata->cfg |= BIT(7);
- else
- drvdata->cfg &= ~BIT(7);
-
- /* bits[10:8], Conditional instruction tracing bit */
- mode = ETM_MODE_COND(drvdata->mode);
- if (drvdata->trccond == true) {
- drvdata->cfg &= ~(BIT(8) | BIT(9) | BIT(10));
- drvdata->cfg |= mode << 8;
- }
-
- /* bit[11], Global timestamp tracing bit */
- if ((drvdata->mode & ETMv4_MODE_TIMESTAMP) && (drvdata->ts_size))
- drvdata->cfg |= BIT(11);
- else
- drvdata->cfg &= ~BIT(11);
-
- /* bit[12], Return stack enable bit */
- if ((drvdata->mode & ETM_MODE_RETURNSTACK) &&
- (drvdata->retstack == true))
- drvdata->cfg |= BIT(12);
- else
- drvdata->cfg &= ~BIT(12);
-
- /* bits[14:13], Q element enable field */
- mode = ETM_MODE_QELEM(drvdata->mode);
- /* start by clearing QE bits */
- drvdata->cfg &= ~(BIT(13) | BIT(14));
- /* if supported, Q elements with instruction counts are enabled */
- if ((mode & BIT(0)) && (drvdata->q_support & BIT(0)))
- drvdata->cfg |= BIT(13);
- /*
- * if supported, Q elements with and without instruction
- * counts are enabled
- */
- if ((mode & BIT(1)) && (drvdata->q_support & BIT(1)))
- drvdata->cfg |= BIT(14);
-
- /* bit[11], AMBA Trace Bus (ATB) trigger enable bit */
- if ((drvdata->mode & ETM_MODE_ATB_TRIGGER) &&
- (drvdata->atbtrig == true))
- drvdata->eventctrl1 |= BIT(11);
- else
- drvdata->eventctrl1 &= ~BIT(11);
-
- /* bit[12], Low-power state behavior override bit */
- if ((drvdata->mode & ETM_MODE_LPOVERRIDE) &&
- (drvdata->lpoverride == true))
- drvdata->eventctrl1 |= BIT(12);
- else
- drvdata->eventctrl1 &= ~BIT(12);
-
- /* bit[8], Instruction stall bit */
- if (drvdata->mode & ETM_MODE_ISTALL_EN)
- drvdata->stall_ctrl |= BIT(8);
- else
- drvdata->stall_ctrl &= ~BIT(8);
-
- /* bit[10], Prioritize instruction trace bit */
- if (drvdata->mode & ETM_MODE_INSTPRIO)
- drvdata->stall_ctrl |= BIT(10);
- else
- drvdata->stall_ctrl &= ~BIT(10);
-
- /* bit[13], Trace overflow prevention bit */
- if ((drvdata->mode & ETM_MODE_NOOVERFLOW) &&
- (drvdata->nooverflow == true))
- drvdata->stall_ctrl |= BIT(13);
- else
- drvdata->stall_ctrl &= ~BIT(13);
-
- /* bit[9] Start/stop logic control bit */
- if (drvdata->mode & ETM_MODE_VIEWINST_STARTSTOP)
- drvdata->vinst_ctrl |= BIT(9);
- else
- drvdata->vinst_ctrl &= ~BIT(9);
-
- /* bit[10], Whether a trace unit must trace a Reset exception */
- if (drvdata->mode & ETM_MODE_TRACE_RESET)
- drvdata->vinst_ctrl |= BIT(10);
- else
- drvdata->vinst_ctrl &= ~BIT(10);
-
- /* bit[11], Whether a trace unit must trace a system error exception */
- if ((drvdata->mode & ETM_MODE_TRACE_ERR) &&
- (drvdata->trc_error == true))
- drvdata->vinst_ctrl |= BIT(11);
- else
- drvdata->vinst_ctrl &= ~BIT(11);
-
- spin_unlock(&drvdata->spinlock);
- return size;
-}
-static DEVICE_ATTR_RW(mode);
-
-static ssize_t pe_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- val = drvdata->pe_sel;
- return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
-}
-
-static ssize_t pe_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t size)
-{
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- if (kstrtoul(buf, 16, &val))
- return -EINVAL;
-
- spin_lock(&drvdata->spinlock);
- if (val > drvdata->nr_pe) {
- spin_unlock(&drvdata->spinlock);
- return -EINVAL;
- }
-
- drvdata->pe_sel = val;
- spin_unlock(&drvdata->spinlock);
- return size;
-}
-static DEVICE_ATTR_RW(pe);
-
-static ssize_t event_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- val = drvdata->eventctrl0;
- return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
-}
-
-static ssize_t event_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t size)
-{
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- if (kstrtoul(buf, 16, &val))
- return -EINVAL;
-
- spin_lock(&drvdata->spinlock);
- switch (drvdata->nr_event) {
- case 0x0:
- /* EVENT0, bits[7:0] */
- drvdata->eventctrl0 = val & 0xFF;
- break;
- case 0x1:
- /* EVENT1, bits[15:8] */
- drvdata->eventctrl0 = val & 0xFFFF;
- break;
- case 0x2:
- /* EVENT2, bits[23:16] */
- drvdata->eventctrl0 = val & 0xFFFFFF;
- break;
- case 0x3:
- /* EVENT3, bits[31:24] */
- drvdata->eventctrl0 = val;
- break;
- default:
- break;
- }
- spin_unlock(&drvdata->spinlock);
- return size;
-}
-static DEVICE_ATTR_RW(event);
-
-static ssize_t event_instren_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- val = BMVAL(drvdata->eventctrl1, 0, 3);
- return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
-}
-
-static ssize_t event_instren_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t size)
-{
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- if (kstrtoul(buf, 16, &val))
- return -EINVAL;
-
- spin_lock(&drvdata->spinlock);
- /* start by clearing all instruction event enable bits */
- drvdata->eventctrl1 &= ~(BIT(0) | BIT(1) | BIT(2) | BIT(3));
- switch (drvdata->nr_event) {
- case 0x0:
- /* generate Event element for event 1 */
- drvdata->eventctrl1 |= val & BIT(1);
- break;
- case 0x1:
- /* generate Event element for event 1 and 2 */
- drvdata->eventctrl1 |= val & (BIT(0) | BIT(1));
- break;
- case 0x2:
- /* generate Event element for event 1, 2 and 3 */
- drvdata->eventctrl1 |= val & (BIT(0) | BIT(1) | BIT(2));
- break;
- case 0x3:
- /* generate Event element for all 4 events */
- drvdata->eventctrl1 |= val & 0xF;
- break;
- default:
- break;
- }
- spin_unlock(&drvdata->spinlock);
- return size;
-}
-static DEVICE_ATTR_RW(event_instren);
-
-static ssize_t event_ts_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- val = drvdata->ts_ctrl;
- return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
-}
-
-static ssize_t event_ts_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t size)
-{
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- if (kstrtoul(buf, 16, &val))
- return -EINVAL;
- if (!drvdata->ts_size)
- return -EINVAL;
-
- drvdata->ts_ctrl = val & ETMv4_EVENT_MASK;
- return size;
-}
-static DEVICE_ATTR_RW(event_ts);
-
-static ssize_t syncfreq_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- val = drvdata->syncfreq;
- return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
-}
-
-static ssize_t syncfreq_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t size)
-{
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- if (kstrtoul(buf, 16, &val))
- return -EINVAL;
- if (drvdata->syncpr == true)
- return -EINVAL;
-
- drvdata->syncfreq = val & ETMv4_SYNC_MASK;
- return size;
-}
-static DEVICE_ATTR_RW(syncfreq);
-
-static ssize_t cyc_threshold_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- val = drvdata->ccctlr;
- return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
-}
-
-static ssize_t cyc_threshold_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t size)
-{
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- if (kstrtoul(buf, 16, &val))
- return -EINVAL;
- if (val < drvdata->ccitmin)
- return -EINVAL;
-
- drvdata->ccctlr = val & ETM_CYC_THRESHOLD_MASK;
- return size;
-}
-static DEVICE_ATTR_RW(cyc_threshold);
-
-static ssize_t bb_ctrl_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- val = drvdata->bb_ctrl;
- return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
-}
-
-static ssize_t bb_ctrl_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t size)
-{
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- if (kstrtoul(buf, 16, &val))
- return -EINVAL;
- if (drvdata->trcbb == false)
- return -EINVAL;
- if (!drvdata->nr_addr_cmp)
- return -EINVAL;
- /*
- * Bit[7:0] selects which address range comparator is used for
- * branch broadcast control.
- */
- if (BMVAL(val, 0, 7) > drvdata->nr_addr_cmp)
- return -EINVAL;
-
- drvdata->bb_ctrl = val;
- return size;
-}
-static DEVICE_ATTR_RW(bb_ctrl);
-
-static ssize_t event_vinst_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- val = drvdata->vinst_ctrl & ETMv4_EVENT_MASK;
- return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
-}
-
-static ssize_t event_vinst_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t size)
-{
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- if (kstrtoul(buf, 16, &val))
- return -EINVAL;
-
- spin_lock(&drvdata->spinlock);
- val &= ETMv4_EVENT_MASK;
- drvdata->vinst_ctrl &= ~ETMv4_EVENT_MASK;
- drvdata->vinst_ctrl |= val;
- spin_unlock(&drvdata->spinlock);
- return size;
-}
-static DEVICE_ATTR_RW(event_vinst);
-
-static ssize_t s_exlevel_vinst_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- val = BMVAL(drvdata->vinst_ctrl, 16, 19);
- return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
-}
-
-static ssize_t s_exlevel_vinst_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t size)
-{
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- if (kstrtoul(buf, 16, &val))
- return -EINVAL;
-
- spin_lock(&drvdata->spinlock);
- /* clear all EXLEVEL_S bits (bit[18] is never implemented) */
- drvdata->vinst_ctrl &= ~(BIT(16) | BIT(17) | BIT(19));
- /* enable instruction tracing for corresponding exception level */
- val &= drvdata->s_ex_level;
- drvdata->vinst_ctrl |= (val << 16);
- spin_unlock(&drvdata->spinlock);
- return size;
-}
-static DEVICE_ATTR_RW(s_exlevel_vinst);
-
-static ssize_t ns_exlevel_vinst_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- /* EXLEVEL_NS, bits[23:20] */
- val = BMVAL(drvdata->vinst_ctrl, 20, 23);
- return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
-}
-
-static ssize_t ns_exlevel_vinst_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t size)
-{
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- if (kstrtoul(buf, 16, &val))
- return -EINVAL;
-
- spin_lock(&drvdata->spinlock);
- /* clear EXLEVEL_NS bits (bit[23] is never implemented */
- drvdata->vinst_ctrl &= ~(BIT(20) | BIT(21) | BIT(22));
- /* enable instruction tracing for corresponding exception level */
- val &= drvdata->ns_ex_level;
- drvdata->vinst_ctrl |= (val << 20);
- spin_unlock(&drvdata->spinlock);
- return size;
-}
-static DEVICE_ATTR_RW(ns_exlevel_vinst);
-
-static ssize_t addr_idx_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- val = drvdata->addr_idx;
- return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
-}
-
-static ssize_t addr_idx_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t size)
-{
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- if (kstrtoul(buf, 16, &val))
- return -EINVAL;
- if (val >= drvdata->nr_addr_cmp * 2)
- 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_instdatatype_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- ssize_t len;
- u8 val, idx;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- spin_lock(&drvdata->spinlock);
- idx = drvdata->addr_idx;
- val = BMVAL(drvdata->addr_acc[idx], 0, 1);
- len = scnprintf(buf, PAGE_SIZE, "%s\n",
- val == ETM_INSTR_ADDR ? "instr" :
- (val == ETM_DATA_LOAD_ADDR ? "data_load" :
- (val == ETM_DATA_STORE_ADDR ? "data_store" :
- "data_load_store")));
- spin_unlock(&drvdata->spinlock);
- return len;
-}
-
-static ssize_t addr_instdatatype_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t size)
-{
- u8 idx;
- char str[20] = "";
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- if (strlen(buf) >= 20)
- return -EINVAL;
- if (sscanf(buf, "%s", str) != 1)
- return -EINVAL;
-
- spin_lock(&drvdata->spinlock);
- idx = drvdata->addr_idx;
- if (!strcmp(str, "instr"))
- /* TYPE, bits[1:0] */
- drvdata->addr_acc[idx] &= ~(BIT(0) | BIT(1));
-
- spin_unlock(&drvdata->spinlock);
- return size;
-}
-static DEVICE_ATTR_RW(addr_instdatatype);
-
-static ssize_t addr_single_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- u8 idx;
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- idx = drvdata->addr_idx;
- spin_lock(&drvdata->spinlock);
- if (!(drvdata->addr_type[idx] == ETM_ADDR_TYPE_NONE ||
- drvdata->addr_type[idx] == ETM_ADDR_TYPE_SINGLE)) {
- spin_unlock(&drvdata->spinlock);
- return -EPERM;
- }
- val = (unsigned long)drvdata->addr_val[idx];
- spin_unlock(&drvdata->spinlock);
- return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
-}
-
-static ssize_t addr_single_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t size)
-{
- u8 idx;
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- if (kstrtoul(buf, 16, &val))
- return -EINVAL;
-
- 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 -EPERM;
- }
-
- drvdata->addr_val[idx] = (u64)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 etmv4_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 = (unsigned long)drvdata->addr_val[idx];
- val2 = (unsigned long)drvdata->addr_val[idx + 1];
- spin_unlock(&drvdata->spinlock);
- return scnprintf(buf, PAGE_SIZE, "%#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 etmv4_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] = (u64)val1;
- drvdata->addr_type[idx] = ETM_ADDR_TYPE_RANGE;
- drvdata->addr_val[idx + 1] = (u64)val2;
- drvdata->addr_type[idx + 1] = ETM_ADDR_TYPE_RANGE;
- /*
- * Program include or exclude control bits for vinst or vdata
- * whenever we change addr comparators to ETM_ADDR_TYPE_RANGE
- */
- if (drvdata->mode & ETM_MODE_EXCLUDE)
- etm4_set_mode_exclude(drvdata, true);
- else
- etm4_set_mode_exclude(drvdata, false);
-
- 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 etmv4_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 = (unsigned long)drvdata->addr_val[idx];
- spin_unlock(&drvdata->spinlock);
- return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
-}
-
-static ssize_t addr_start_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t size)
-{
- u8 idx;
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- if (kstrtoul(buf, 16, &val))
- return -EINVAL;
-
- spin_lock(&drvdata->spinlock);
- idx = drvdata->addr_idx;
- if (!drvdata->nr_addr_cmp) {
- spin_unlock(&drvdata->spinlock);
- return -EINVAL;
- }
- 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] = (u64)val;
- drvdata->addr_type[idx] = ETM_ADDR_TYPE_START;
- drvdata->vissctlr |= BIT(idx);
- /* SSSTATUS, bit[9] - turn on start/stop logic */
- drvdata->vinst_ctrl |= BIT(9);
- 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 etmv4_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 = (unsigned long)drvdata->addr_val[idx];
- spin_unlock(&drvdata->spinlock);
- return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
-}
-
-static ssize_t addr_stop_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t size)
-{
- u8 idx;
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- if (kstrtoul(buf, 16, &val))
- return -EINVAL;
-
- spin_lock(&drvdata->spinlock);
- idx = drvdata->addr_idx;
- if (!drvdata->nr_addr_cmp) {
- spin_unlock(&drvdata->spinlock);
- return -EINVAL;
- }
- 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] = (u64)val;
- drvdata->addr_type[idx] = ETM_ADDR_TYPE_STOP;
- drvdata->vissctlr |= BIT(idx + 16);
- /* SSSTATUS, bit[9] - turn on start/stop logic */
- drvdata->vinst_ctrl |= BIT(9);
- spin_unlock(&drvdata->spinlock);
- return size;
-}
-static DEVICE_ATTR_RW(addr_stop);
-
-static ssize_t addr_ctxtype_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- ssize_t len;
- u8 idx, val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- spin_lock(&drvdata->spinlock);
- idx = drvdata->addr_idx;
- /* CONTEXTTYPE, bits[3:2] */
- val = BMVAL(drvdata->addr_acc[idx], 2, 3);
- len = scnprintf(buf, PAGE_SIZE, "%s\n", val == ETM_CTX_NONE ? "none" :
- (val == ETM_CTX_CTXID ? "ctxid" :
- (val == ETM_CTX_VMID ? "vmid" : "all")));
- spin_unlock(&drvdata->spinlock);
- return len;
-}
-
-static ssize_t addr_ctxtype_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t size)
-{
- u8 idx;
- char str[10] = "";
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- if (strlen(buf) >= 10)
- return -EINVAL;
- if (sscanf(buf, "%s", str) != 1)
- return -EINVAL;
-
- spin_lock(&drvdata->spinlock);
- idx = drvdata->addr_idx;
- if (!strcmp(str, "none"))
- /* start by clearing context type bits */
- drvdata->addr_acc[idx] &= ~(BIT(2) | BIT(3));
- else if (!strcmp(str, "ctxid")) {
- /* 0b01 The trace unit performs a Context ID */
- if (drvdata->numcidc) {
- drvdata->addr_acc[idx] |= BIT(2);
- drvdata->addr_acc[idx] &= ~BIT(3);
- }
- } else if (!strcmp(str, "vmid")) {
- /* 0b10 The trace unit performs a VMID */
- if (drvdata->numvmidc) {
- drvdata->addr_acc[idx] &= ~BIT(2);
- drvdata->addr_acc[idx] |= BIT(3);
- }
- } else if (!strcmp(str, "all")) {
- /*
- * 0b11 The trace unit performs a Context ID
- * comparison and a VMID
- */
- if (drvdata->numcidc)
- drvdata->addr_acc[idx] |= BIT(2);
- if (drvdata->numvmidc)
- drvdata->addr_acc[idx] |= BIT(3);
- }
- spin_unlock(&drvdata->spinlock);
- return size;
-}
-static DEVICE_ATTR_RW(addr_ctxtype);
-
-static ssize_t addr_context_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- u8 idx;
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- spin_lock(&drvdata->spinlock);
- idx = drvdata->addr_idx;
- /* context ID comparator bits[6:4] */
- val = BMVAL(drvdata->addr_acc[idx], 4, 6);
- spin_unlock(&drvdata->spinlock);
- return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
-}
-
-static ssize_t addr_context_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t size)
-{
- u8 idx;
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- if (kstrtoul(buf, 16, &val))
- return -EINVAL;
- if ((drvdata->numcidc <= 1) && (drvdata->numvmidc <= 1))
- return -EINVAL;
- if (val >= (drvdata->numcidc >= drvdata->numvmidc ?
- drvdata->numcidc : drvdata->numvmidc))
- return -EINVAL;
-
- spin_lock(&drvdata->spinlock);
- idx = drvdata->addr_idx;
- /* clear context ID comparator bits[6:4] */
- drvdata->addr_acc[idx] &= ~(BIT(4) | BIT(5) | BIT(6));
- drvdata->addr_acc[idx] |= (val << 4);
- spin_unlock(&drvdata->spinlock);
- return size;
-}
-static DEVICE_ATTR_RW(addr_context);
-
-static ssize_t seq_idx_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- val = drvdata->seq_idx;
- return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
-}
-
-static ssize_t seq_idx_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t size)
-{
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- if (kstrtoul(buf, 16, &val))
- return -EINVAL;
- if (val >= drvdata->nrseqstate - 1)
- 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->seq_idx = val;
- spin_unlock(&drvdata->spinlock);
- return size;
-}
-static DEVICE_ATTR_RW(seq_idx);
-
-static ssize_t seq_state_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- val = drvdata->seq_state;
- return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
-}
-
-static ssize_t seq_state_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t size)
-{
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- if (kstrtoul(buf, 16, &val))
- return -EINVAL;
- if (val >= drvdata->nrseqstate)
- return -EINVAL;
-
- drvdata->seq_state = val;
- return size;
-}
-static DEVICE_ATTR_RW(seq_state);
-
-static ssize_t seq_event_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- u8 idx;
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- spin_lock(&drvdata->spinlock);
- idx = drvdata->seq_idx;
- val = drvdata->seq_ctrl[idx];
- spin_unlock(&drvdata->spinlock);
- return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
-}
-
-static ssize_t seq_event_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t size)
-{
- u8 idx;
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- if (kstrtoul(buf, 16, &val))
- return -EINVAL;
-
- spin_lock(&drvdata->spinlock);
- idx = drvdata->seq_idx;
- /* RST, bits[7:0] */
- drvdata->seq_ctrl[idx] = val & 0xFF;
- spin_unlock(&drvdata->spinlock);
- return size;
-}
-static DEVICE_ATTR_RW(seq_event);
-
-static ssize_t seq_reset_event_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- val = drvdata->seq_rst;
- return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
-}
-
-static ssize_t seq_reset_event_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t size)
-{
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- if (kstrtoul(buf, 16, &val))
- return -EINVAL;
- if (!(drvdata->nrseqstate))
- return -EINVAL;
-
- drvdata->seq_rst = val & ETMv4_EVENT_MASK;
- return size;
-}
-static DEVICE_ATTR_RW(seq_reset_event);
-
-static ssize_t cntr_idx_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- val = drvdata->cntr_idx;
- return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
-}
-
-static ssize_t cntr_idx_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t size)
-{
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- if (kstrtoul(buf, 16, &val))
- return -EINVAL;
- 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 cntrldvr_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- u8 idx;
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- spin_lock(&drvdata->spinlock);
- idx = drvdata->cntr_idx;
- val = drvdata->cntrldvr[idx];
- spin_unlock(&drvdata->spinlock);
- return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
-}
-
-static ssize_t cntrldvr_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t size)
-{
- u8 idx;
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- if (kstrtoul(buf, 16, &val))
- return -EINVAL;
- if (val > ETM_CNTR_MAX_VAL)
- return -EINVAL;
-
- spin_lock(&drvdata->spinlock);
- idx = drvdata->cntr_idx;
- drvdata->cntrldvr[idx] = val;
- spin_unlock(&drvdata->spinlock);
- return size;
-}
-static DEVICE_ATTR_RW(cntrldvr);
-
-static ssize_t cntr_val_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- u8 idx;
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- spin_lock(&drvdata->spinlock);
- idx = drvdata->cntr_idx;
- val = drvdata->cntr_val[idx];
- spin_unlock(&drvdata->spinlock);
- return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
-}
-
-static ssize_t cntr_val_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t size)
-{
- u8 idx;
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- if (kstrtoul(buf, 16, &val))
- return -EINVAL;
- if (val > ETM_CNTR_MAX_VAL)
- return -EINVAL;
-
- spin_lock(&drvdata->spinlock);
- idx = drvdata->cntr_idx;
- drvdata->cntr_val[idx] = val;
- spin_unlock(&drvdata->spinlock);
- return size;
-}
-static DEVICE_ATTR_RW(cntr_val);
-
-static ssize_t cntr_ctrl_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- u8 idx;
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- spin_lock(&drvdata->spinlock);
- idx = drvdata->cntr_idx;
- val = drvdata->cntr_ctrl[idx];
- spin_unlock(&drvdata->spinlock);
- return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
-}
-
-static ssize_t cntr_ctrl_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t size)
-{
- u8 idx;
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- if (kstrtoul(buf, 16, &val))
- return -EINVAL;
-
- spin_lock(&drvdata->spinlock);
- idx = drvdata->cntr_idx;
- drvdata->cntr_ctrl[idx] = val;
- spin_unlock(&drvdata->spinlock);
- return size;
-}
-static DEVICE_ATTR_RW(cntr_ctrl);
-
-static ssize_t res_idx_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- val = drvdata->res_idx;
- return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
-}
-
-static ssize_t res_idx_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t size)
-{
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- if (kstrtoul(buf, 16, &val))
- return -EINVAL;
- /* Resource selector pair 0 is always implemented and reserved */
- if (val < 2 || val >= drvdata->nr_resource * 2)
- 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->res_idx = val;
- spin_unlock(&drvdata->spinlock);
- return size;
-}
-static DEVICE_ATTR_RW(res_idx);
-
-static ssize_t res_ctrl_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- u8 idx;
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- spin_lock(&drvdata->spinlock);
- idx = drvdata->res_idx;
- val = drvdata->res_ctrl[idx];
- spin_unlock(&drvdata->spinlock);
- return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
-}
-
-static ssize_t res_ctrl_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t size)
-{
- u8 idx;
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- if (kstrtoul(buf, 16, &val))
- return -EINVAL;
-
- spin_lock(&drvdata->spinlock);
- idx = drvdata->res_idx;
- /* For odd idx pair inversal bit is RES0 */
- if (idx % 2 != 0)
- /* PAIRINV, bit[21] */
- val &= ~BIT(21);
- drvdata->res_ctrl[idx] = val;
- spin_unlock(&drvdata->spinlock);
- return size;
-}
-static DEVICE_ATTR_RW(res_ctrl);
-
-static ssize_t ctxid_idx_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- val = drvdata->ctxid_idx;
- return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
-}
-
-static ssize_t ctxid_idx_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t size)
-{
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- if (kstrtoul(buf, 16, &val))
- return -EINVAL;
- if (val >= drvdata->numcidc)
- 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)
-{
- u8 idx;
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- spin_lock(&drvdata->spinlock);
- idx = drvdata->ctxid_idx;
- val = (unsigned long)drvdata->ctxid_vpid[idx];
- spin_unlock(&drvdata->spinlock);
- return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
-}
-
-static ssize_t ctxid_pid_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t size)
-{
- u8 idx;
- unsigned long vpid, pid;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- /*
- * only implemented when ctxid tracing is enabled, i.e. at least one
- * ctxid comparator is implemented and ctxid is greater than 0 bits
- * in length
- */
- if (!drvdata->ctxid_size || !drvdata->numcidc)
- return -EINVAL;
- if (kstrtoul(buf, 16, &vpid))
- return -EINVAL;
-
- pid = coresight_vpid_to_pid(vpid);
-
- spin_lock(&drvdata->spinlock);
- idx = drvdata->ctxid_idx;
- drvdata->ctxid_pid[idx] = (u64)pid;
- drvdata->ctxid_vpid[idx] = (u64)vpid;
- spin_unlock(&drvdata->spinlock);
- return size;
-}
-static DEVICE_ATTR_RW(ctxid_pid);
-
-static ssize_t ctxid_masks_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- unsigned long val1, val2;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- spin_lock(&drvdata->spinlock);
- val1 = drvdata->ctxid_mask0;
- val2 = drvdata->ctxid_mask1;
- spin_unlock(&drvdata->spinlock);
- return scnprintf(buf, PAGE_SIZE, "%#lx %#lx\n", val1, val2);
-}
-
-static ssize_t ctxid_masks_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t size)
-{
- u8 i, j, maskbyte;
- unsigned long val1, val2, mask;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- /*
- * only implemented when ctxid tracing is enabled, i.e. at least one
- * ctxid comparator is implemented and ctxid is greater than 0 bits
- * in length
- */
- if (!drvdata->ctxid_size || !drvdata->numcidc)
- return -EINVAL;
- if (sscanf(buf, "%lx %lx", &val1, &val2) != 2)
- return -EINVAL;
-
- spin_lock(&drvdata->spinlock);
- /*
- * each byte[0..3] controls mask value applied to ctxid
- * comparator[0..3]
- */
- switch (drvdata->numcidc) {
- case 0x1:
- /* COMP0, bits[7:0] */
- drvdata->ctxid_mask0 = val1 & 0xFF;
- break;
- case 0x2:
- /* COMP1, bits[15:8] */
- drvdata->ctxid_mask0 = val1 & 0xFFFF;
- break;
- case 0x3:
- /* COMP2, bits[23:16] */
- drvdata->ctxid_mask0 = val1 & 0xFFFFFF;
- break;
- case 0x4:
- /* COMP3, bits[31:24] */
- drvdata->ctxid_mask0 = val1;
- break;
- case 0x5:
- /* COMP4, bits[7:0] */
- drvdata->ctxid_mask0 = val1;
- drvdata->ctxid_mask1 = val2 & 0xFF;
- break;
- case 0x6:
- /* COMP5, bits[15:8] */
- drvdata->ctxid_mask0 = val1;
- drvdata->ctxid_mask1 = val2 & 0xFFFF;
- break;
- case 0x7:
- /* COMP6, bits[23:16] */
- drvdata->ctxid_mask0 = val1;
- drvdata->ctxid_mask1 = val2 & 0xFFFFFF;
- break;
- case 0x8:
- /* COMP7, bits[31:24] */
- drvdata->ctxid_mask0 = val1;
- drvdata->ctxid_mask1 = val2;
- break;
- default:
- break;
- }
- /*
- * If software sets a mask bit to 1, it must program relevant byte
- * of ctxid comparator value 0x0, otherwise behavior is unpredictable.
- * For example, if bit[3] of ctxid_mask0 is 1, we must clear bits[31:24]
- * of ctxid comparator0 value (corresponding to byte 0) register.
- */
- mask = drvdata->ctxid_mask0;
- for (i = 0; i < drvdata->numcidc; i++) {
- /* mask value of corresponding ctxid comparator */
- maskbyte = mask & ETMv4_EVENT_MASK;
- /*
- * each bit corresponds to a byte of respective ctxid comparator
- * value register
- */
- for (j = 0; j < 8; j++) {
- if (maskbyte & 1)
- drvdata->ctxid_pid[i] &= ~(0xFF << (j * 8));
- maskbyte >>= 1;
- }
- /* Select the next ctxid comparator mask value */
- if (i == 3)
- /* ctxid comparators[4-7] */
- mask = drvdata->ctxid_mask1;
- else
- mask >>= 0x8;
- }
-
- spin_unlock(&drvdata->spinlock);
- return size;
-}
-static DEVICE_ATTR_RW(ctxid_masks);
-
-static ssize_t vmid_idx_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- val = drvdata->vmid_idx;
- return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
-}
-
-static ssize_t vmid_idx_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t size)
-{
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- if (kstrtoul(buf, 16, &val))
- return -EINVAL;
- if (val >= drvdata->numvmidc)
- 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->vmid_idx = val;
- spin_unlock(&drvdata->spinlock);
- return size;
-}
-static DEVICE_ATTR_RW(vmid_idx);
-
-static ssize_t vmid_val_show(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- val = (unsigned long)drvdata->vmid_val[drvdata->vmid_idx];
- return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
-}
-
-static ssize_t vmid_val_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t size)
-{
- unsigned long val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- /*
- * only implemented when vmid tracing is enabled, i.e. at least one
- * vmid comparator is implemented and at least 8 bit vmid size
- */
- if (!drvdata->vmid_size || !drvdata->numvmidc)
- return -EINVAL;
- if (kstrtoul(buf, 16, &val))
- return -EINVAL;
-
- spin_lock(&drvdata->spinlock);
- drvdata->vmid_val[drvdata->vmid_idx] = (u64)val;
- spin_unlock(&drvdata->spinlock);
- return size;
-}
-static DEVICE_ATTR_RW(vmid_val);
-
-static ssize_t vmid_masks_show(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- unsigned long val1, val2;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- spin_lock(&drvdata->spinlock);
- val1 = drvdata->vmid_mask0;
- val2 = drvdata->vmid_mask1;
- spin_unlock(&drvdata->spinlock);
- return scnprintf(buf, PAGE_SIZE, "%#lx %#lx\n", val1, val2);
-}
-
-static ssize_t vmid_masks_store(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t size)
-{
- u8 i, j, maskbyte;
- unsigned long val1, val2, mask;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
- /*
- * only implemented when vmid tracing is enabled, i.e. at least one
- * vmid comparator is implemented and at least 8 bit vmid size
- */
- if (!drvdata->vmid_size || !drvdata->numvmidc)
- return -EINVAL;
- if (sscanf(buf, "%lx %lx", &val1, &val2) != 2)
- return -EINVAL;
-
- spin_lock(&drvdata->spinlock);
-
- /*
- * each byte[0..3] controls mask value applied to vmid
- * comparator[0..3]
- */
- switch (drvdata->numvmidc) {
- case 0x1:
- /* COMP0, bits[7:0] */
- drvdata->vmid_mask0 = val1 & 0xFF;
- break;
- case 0x2:
- /* COMP1, bits[15:8] */
- drvdata->vmid_mask0 = val1 & 0xFFFF;
- break;
- case 0x3:
- /* COMP2, bits[23:16] */
- drvdata->vmid_mask0 = val1 & 0xFFFFFF;
- break;
- case 0x4:
- /* COMP3, bits[31:24] */
- drvdata->vmid_mask0 = val1;
- break;
- case 0x5:
- /* COMP4, bits[7:0] */
- drvdata->vmid_mask0 = val1;
- drvdata->vmid_mask1 = val2 & 0xFF;
- break;
- case 0x6:
- /* COMP5, bits[15:8] */
- drvdata->vmid_mask0 = val1;
- drvdata->vmid_mask1 = val2 & 0xFFFF;
- break;
- case 0x7:
- /* COMP6, bits[23:16] */
- drvdata->vmid_mask0 = val1;
- drvdata->vmid_mask1 = val2 & 0xFFFFFF;
- break;
- case 0x8:
- /* COMP7, bits[31:24] */
- drvdata->vmid_mask0 = val1;
- drvdata->vmid_mask1 = val2;
- break;
- default:
- break;
- }
-
- /*
- * If software sets a mask bit to 1, it must program relevant byte
- * of vmid comparator value 0x0, otherwise behavior is unpredictable.
- * For example, if bit[3] of vmid_mask0 is 1, we must clear bits[31:24]
- * of vmid comparator0 value (corresponding to byte 0) register.
- */
- mask = drvdata->vmid_mask0;
- for (i = 0; i < drvdata->numvmidc; i++) {
- /* mask value of corresponding vmid comparator */
- maskbyte = mask & ETMv4_EVENT_MASK;
- /*
- * each bit corresponds to a byte of respective vmid comparator
- * value register
- */
- for (j = 0; j < 8; j++) {
- if (maskbyte & 1)
- drvdata->vmid_val[i] &= ~(0xFF << (j * 8));
- maskbyte >>= 1;
- }
- /* Select the next vmid comparator mask value */
- if (i == 3)
- /* vmid comparators[4-7] */
- mask = drvdata->vmid_mask1;
- else
- mask >>= 0x8;
- }
- spin_unlock(&drvdata->spinlock);
- return size;
-}
-static DEVICE_ATTR_RW(vmid_masks);
-
-static ssize_t cpu_show(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- int val;
- struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
-
- val = drvdata->cpu;
- return scnprintf(buf, PAGE_SIZE, "%d\n", val);
-
-}
-static DEVICE_ATTR_RO(cpu);
-
-static struct attribute *coresight_etmv4_attrs[] = {
- &dev_attr_nr_pe_cmp.attr,
- &dev_attr_nr_addr_cmp.attr,
- &dev_attr_nr_cntr.attr,
- &dev_attr_nr_ext_inp.attr,
- &dev_attr_numcidc.attr,
- &dev_attr_numvmidc.attr,
- &dev_attr_nrseqstate.attr,
- &dev_attr_nr_resource.attr,
- &dev_attr_nr_ss_cmp.attr,
- &dev_attr_reset.attr,
- &dev_attr_mode.attr,
- &dev_attr_pe.attr,
- &dev_attr_event.attr,
- &dev_attr_event_instren.attr,
- &dev_attr_event_ts.attr,
- &dev_attr_syncfreq.attr,
- &dev_attr_cyc_threshold.attr,
- &dev_attr_bb_ctrl.attr,
- &dev_attr_event_vinst.attr,
- &dev_attr_s_exlevel_vinst.attr,
- &dev_attr_ns_exlevel_vinst.attr,
- &dev_attr_addr_idx.attr,
- &dev_attr_addr_instdatatype.attr,
- &dev_attr_addr_single.attr,
- &dev_attr_addr_range.attr,
- &dev_attr_addr_start.attr,
- &dev_attr_addr_stop.attr,
- &dev_attr_addr_ctxtype.attr,
- &dev_attr_addr_context.attr,
- &dev_attr_seq_idx.attr,
- &dev_attr_seq_state.attr,
- &dev_attr_seq_event.attr,
- &dev_attr_seq_reset_event.attr,
- &dev_attr_cntr_idx.attr,
- &dev_attr_cntrldvr.attr,
- &dev_attr_cntr_val.attr,
- &dev_attr_cntr_ctrl.attr,
- &dev_attr_res_idx.attr,
- &dev_attr_res_ctrl.attr,
- &dev_attr_ctxid_idx.attr,
- &dev_attr_ctxid_pid.attr,
- &dev_attr_ctxid_masks.attr,
- &dev_attr_vmid_idx.attr,
- &dev_attr_vmid_val.attr,
- &dev_attr_vmid_masks.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 etmv4_drvdata *drvdata = dev_get_drvdata(_dev->parent); \
- return scnprintf(buf, PAGE_SIZE, "0x%x\n", \
- readl_relaxed(drvdata->base + offset)); \
-} \
-static DEVICE_ATTR_RO(name)
-
-coresight_simple_func(trcoslsr, TRCOSLSR);
-coresight_simple_func(trcpdcr, TRCPDCR);
-coresight_simple_func(trcpdsr, TRCPDSR);
-coresight_simple_func(trclsr, TRCLSR);
-coresight_simple_func(trcauthstatus, TRCAUTHSTATUS);
-coresight_simple_func(trcdevid, TRCDEVID);
-coresight_simple_func(trcdevtype, TRCDEVTYPE);
-coresight_simple_func(trcpidr0, TRCPIDR0);
-coresight_simple_func(trcpidr1, TRCPIDR1);
-coresight_simple_func(trcpidr2, TRCPIDR2);
-coresight_simple_func(trcpidr3, TRCPIDR3);
-
-static struct attribute *coresight_etmv4_mgmt_attrs[] = {
- &dev_attr_trcoslsr.attr,
- &dev_attr_trcpdcr.attr,
- &dev_attr_trcpdsr.attr,
- &dev_attr_trclsr.attr,
- &dev_attr_trcauthstatus.attr,
- &dev_attr_trcdevid.attr,
- &dev_attr_trcdevtype.attr,
- &dev_attr_trcpidr0.attr,
- &dev_attr_trcpidr1.attr,
- &dev_attr_trcpidr2.attr,
- &dev_attr_trcpidr3.attr,
- NULL,
-};
-
-coresight_simple_func(trcidr0, TRCIDR0);
-coresight_simple_func(trcidr1, TRCIDR1);
-coresight_simple_func(trcidr2, TRCIDR2);
-coresight_simple_func(trcidr3, TRCIDR3);
-coresight_simple_func(trcidr4, TRCIDR4);
-coresight_simple_func(trcidr5, TRCIDR5);
-/* trcidr[6,7] are reserved */
-coresight_simple_func(trcidr8, TRCIDR8);
-coresight_simple_func(trcidr9, TRCIDR9);
-coresight_simple_func(trcidr10, TRCIDR10);
-coresight_simple_func(trcidr11, TRCIDR11);
-coresight_simple_func(trcidr12, TRCIDR12);
-coresight_simple_func(trcidr13, TRCIDR13);
-
-static struct attribute *coresight_etmv4_trcidr_attrs[] = {
- &dev_attr_trcidr0.attr,
- &dev_attr_trcidr1.attr,
- &dev_attr_trcidr2.attr,
- &dev_attr_trcidr3.attr,
- &dev_attr_trcidr4.attr,
- &dev_attr_trcidr5.attr,
- /* trcidr[6,7] are reserved */
- &dev_attr_trcidr8.attr,
- &dev_attr_trcidr9.attr,
- &dev_attr_trcidr10.attr,
- &dev_attr_trcidr11.attr,
- &dev_attr_trcidr12.attr,
- &dev_attr_trcidr13.attr,
- NULL,
-};
-
-static const struct attribute_group coresight_etmv4_group = {
- .attrs = coresight_etmv4_attrs,
-};
-
-static const struct attribute_group coresight_etmv4_mgmt_group = {
- .attrs = coresight_etmv4_mgmt_attrs,
- .name = "mgmt",
-};
-
-static const struct attribute_group coresight_etmv4_trcidr_group = {
- .attrs = coresight_etmv4_trcidr_attrs,
- .name = "trcidr",
-};
-
-static const struct attribute_group *coresight_etmv4_groups[] = {
- &coresight_etmv4_group,
- &coresight_etmv4_mgmt_group,
- &coresight_etmv4_trcidr_group,
- NULL,
-};
-
static void etm4_init_arch_data(void *info)
{
u32 etmidr0;
projects / firefly-linux-kernel-4.4.55.git / commitdiff