Orange Pi5 kernel

// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright(C) 2015 Linaro Limited. All rights reserved.
 * Author: Mathieu Poirier <mathieu.poirier@linaro.org>
 */
 
#include <linux/pid_namespace.h>
#include <linux/pm_runtime.h>
#include <linux/sysfs.h>
#include "coresight-etm4x.h"
#include "coresight-priv.h"
 
static int etm4_set_mode_exclude(struct etmv4_drvdata *drvdata, bool exclude)
{
<------>u8 idx;
<------>struct etmv4_config *config = &drvdata->config;
 
<------>idx = config->addr_idx;
 
<------>/*
<------> * TRCACATRn.TYPE bit[1:0]: type of comparison
<------> * the trace unit performs
<------> */
<------>if (BMVAL(config->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 (config->addr_type[idx] != ETM_ADDR_TYPE_RANGE ||
<------><------>    config->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
<------><------><------> */
<------><------><------>config->viiectlr |= BIT(idx / 2 + 16);
<------><------><------>config->viiectlr &= ~BIT(idx / 2);
<------><------>} else {
<------><------><------>/*
<------><------><------> * Set include bit and unset exclude bit
<------><------><------> * corresponding to comparator pair
<------><------><------> */
<------><------><------>config->viiectlr |= BIT(idx / 2);
<------><------><------>config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>if (kstrtoul(buf, 16, &val))
<------><------>return -EINVAL;
 
<------>spin_lock(&drvdata->spinlock);
<------>if (val)
<------><------>config->mode = 0x0;
 
<------>/* Disable data tracing: do not trace load and store data transfers */
<------>config->mode &= ~(ETM_MODE_LOAD | ETM_MODE_STORE);
<------>config->cfg &= ~(BIT(1) | BIT(2));
 
<------>/* Disable data value and data address tracing */
<------>config->mode &= ~(ETM_MODE_DATA_TRACE_ADDR |
<------><------><------>   ETM_MODE_DATA_TRACE_VAL);
<------>config->cfg &= ~(BIT(16) | BIT(17));
 
<------>/* Disable all events tracing */
<------>config->eventctrl0 = 0x0;
<------>config->eventctrl1 = 0x0;
 
<------>/* Disable timestamp event */
<------>config->ts_ctrl = 0x0;
 
<------>/* Disable stalling */
<------>config->stall_ctrl = 0x0;
 
<------>/* Reset trace synchronization period  to 2^8 = 256 bytes*/
<------>if (drvdata->syncpr == false)
<------><------>config->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.
<------> */
<------>config->vinst_ctrl = BIT(0);
<------>if (drvdata->nr_addr_cmp > 0) {
<------><------>config->mode |= ETM_MODE_VIEWINST_STARTSTOP;
<------><------>/* SSSTATUS, bit[9] */
<------><------>config->vinst_ctrl |= BIT(9);
<------>}
 
<------>/* No address range filtering for ViewInst */
<------>config->viiectlr = 0x0;
 
<------>/* No start-stop filtering for ViewInst */
<------>config->vissctlr = 0x0;
<------>config->vipcssctlr = 0x0;
 
<------>/* Disable seq events */
<------>for (i = 0; i < drvdata->nrseqstate-1; i++)
<------><------>config->seq_ctrl[i] = 0x0;
<------>config->seq_rst = 0x0;
<------>config->seq_state = 0x0;
 
<------>/* Disable external input events */
<------>config->ext_inp = 0x0;
 
<------>config->cntr_idx = 0x0;
<------>for (i = 0; i < drvdata->nr_cntr; i++) {
<------><------>config->cntrldvr[i] = 0x0;
<------><------>config->cntr_ctrl[i] = 0x0;
<------><------>config->cntr_val[i] = 0x0;
<------>}
 
<------>config->res_idx = 0x0;
<------>for (i = 2; i < 2 * drvdata->nr_resource; i++)
<------><------>config->res_ctrl[i] = 0x0;
 
<------>config->ss_idx = 0x0;
<------>for (i = 0; i < drvdata->nr_ss_cmp; i++) {
<------><------>config->ss_ctrl[i] = 0x0;
<------><------>config->ss_pe_cmp[i] = 0x0;
<------>}
 
<------>config->addr_idx = 0x0;
<------>for (i = 0; i < drvdata->nr_addr_cmp * 2; i++) {
<------><------>config->addr_val[i] = 0x0;
<------><------>config->addr_acc[i] = 0x0;
<------><------>config->addr_type[i] = ETM_ADDR_TYPE_NONE;
<------>}
 
<------>config->ctxid_idx = 0x0;
<------>for (i = 0; i < drvdata->numcidc; i++)
<------><------>config->ctxid_pid[i] = 0x0;
 
<------>config->ctxid_mask0 = 0x0;
<------>config->ctxid_mask1 = 0x0;
 
<------>config->vmid_idx = 0x0;
<------>for (i = 0; i < drvdata->numvmidc; i++)
<------><------>config->vmid_val[i] = 0x0;
<------>config->vmid_mask0 = 0x0;
<------>config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>val = config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>if (kstrtoul(buf, 16, &val))
<------><------>return -EINVAL;
 
<------>spin_lock(&drvdata->spinlock);
<------>config->mode = val & ETMv4_MODE_ALL;
 
<------>if (drvdata->instrp0 == true) {
<------><------>/* start by clearing instruction P0 field */
<------><------>config->cfg  &= ~(BIT(1) | BIT(2));
<------><------>if (config->mode & ETM_MODE_LOAD)
<------><------><------>/* 0b01 Trace load instructions as P0 instructions */
<------><------><------>config->cfg  |= BIT(1);
<------><------>if (config->mode & ETM_MODE_STORE)
<------><------><------>/* 0b10 Trace store instructions as P0 instructions */
<------><------><------>config->cfg  |= BIT(2);
<------><------>if (config->mode & ETM_MODE_LOAD_STORE)
<------><------><------>/*
<------><------><------> * 0b11 Trace load and store instructions
<------><------><------> * as P0 instructions
<------><------><------> */
<------><------><------>config->cfg  |= BIT(1) | BIT(2);
<------>}
 
<------>/* bit[3], Branch broadcast mode */
<------>if ((config->mode & ETM_MODE_BB) && (drvdata->trcbb == true))
<------><------>config->cfg |= BIT(3);
<------>else
<------><------>config->cfg &= ~BIT(3);
 
<------>/* bit[4], Cycle counting instruction trace bit */
<------>if ((config->mode & ETMv4_MODE_CYCACC) &&
<------><------>(drvdata->trccci == true))
<------><------>config->cfg |= BIT(4);
<------>else
<------><------>config->cfg &= ~BIT(4);
 
<------>/* bit[6], Context ID tracing bit */
<------>if ((config->mode & ETMv4_MODE_CTXID) && (drvdata->ctxid_size))
<------><------>config->cfg |= BIT(6);
<------>else
<------><------>config->cfg &= ~BIT(6);
 
<------>if ((config->mode & ETM_MODE_VMID) && (drvdata->vmid_size))
<------><------>config->cfg |= BIT(7);
<------>else
<------><------>config->cfg &= ~BIT(7);
 
<------>/* bits[10:8], Conditional instruction tracing bit */
<------>mode = ETM_MODE_COND(config->mode);
<------>if (drvdata->trccond == true) {
<------><------>config->cfg &= ~(BIT(8) | BIT(9) | BIT(10));
<------><------>config->cfg |= mode << 8;
<------>}
 
<------>/* bit[11], Global timestamp tracing bit */
<------>if ((config->mode & ETMv4_MODE_TIMESTAMP) && (drvdata->ts_size))
<------><------>config->cfg |= BIT(11);
<------>else
<------><------>config->cfg &= ~BIT(11);
 
<------>/* bit[12], Return stack enable bit */
<------>if ((config->mode & ETM_MODE_RETURNSTACK) &&
<------><------><------><------><------>(drvdata->retstack == true))
<------><------>config->cfg |= BIT(12);
<------>else
<------><------>config->cfg &= ~BIT(12);
 
<------>/* bits[14:13], Q element enable field */
<------>mode = ETM_MODE_QELEM(config->mode);
<------>/* start by clearing QE bits */
<------>config->cfg &= ~(BIT(13) | BIT(14));
<------>/*
<------> * if supported, Q elements with instruction counts are enabled.
<------> * Always set the low bit for any requested mode. Valid combos are
<------> * 0b00, 0b01 and 0b11.
<------> */
<------>if (mode && drvdata->q_support)
<------><------>config->cfg |= BIT(13);
<------>/*
<------> * if supported, Q elements with and without instruction
<------> * counts are enabled
<------> */
<------>if ((mode & BIT(1)) && (drvdata->q_support & BIT(1)))
<------><------>config->cfg |= BIT(14);
 
<------>/* bit[11], AMBA Trace Bus (ATB) trigger enable bit */
<------>if ((config->mode & ETM_MODE_ATB_TRIGGER) &&
<------>    (drvdata->atbtrig == true))
<------><------>config->eventctrl1 |= BIT(11);
<------>else
<------><------>config->eventctrl1 &= ~BIT(11);
 
<------>/* bit[12], Low-power state behavior override bit */
<------>if ((config->mode & ETM_MODE_LPOVERRIDE) &&
<------>    (drvdata->lpoverride == true))
<------><------>config->eventctrl1 |= BIT(12);
<------>else
<------><------>config->eventctrl1 &= ~BIT(12);
 
<------>/* bit[8], Instruction stall bit */
<------>if ((config->mode & ETM_MODE_ISTALL_EN) && (drvdata->stallctl == true))
<------><------>config->stall_ctrl |= BIT(8);
<------>else
<------><------>config->stall_ctrl &= ~BIT(8);
 
<------>/* bit[10], Prioritize instruction trace bit */
<------>if (config->mode & ETM_MODE_INSTPRIO)
<------><------>config->stall_ctrl |= BIT(10);
<------>else
<------><------>config->stall_ctrl &= ~BIT(10);
 
<------>/* bit[13], Trace overflow prevention bit */
<------>if ((config->mode & ETM_MODE_NOOVERFLOW) &&
<------><------>(drvdata->nooverflow == true))
<------><------>config->stall_ctrl |= BIT(13);
<------>else
<------><------>config->stall_ctrl &= ~BIT(13);
 
<------>/* bit[9] Start/stop logic control bit */
<------>if (config->mode & ETM_MODE_VIEWINST_STARTSTOP)
<------><------>config->vinst_ctrl |= BIT(9);
<------>else
<------><------>config->vinst_ctrl &= ~BIT(9);
 
<------>/* bit[10], Whether a trace unit must trace a Reset exception */
<------>if (config->mode & ETM_MODE_TRACE_RESET)
<------><------>config->vinst_ctrl |= BIT(10);
<------>else
<------><------>config->vinst_ctrl &= ~BIT(10);
 
<------>/* bit[11], Whether a trace unit must trace a system error exception */
<------>if ((config->mode & ETM_MODE_TRACE_ERR) &&
<------><------>(drvdata->trc_error == true))
<------><------>config->vinst_ctrl |= BIT(11);
<------>else
<------><------>config->vinst_ctrl &= ~BIT(11);
 
<------>if (config->mode & (ETM_MODE_EXCL_KERN | ETM_MODE_EXCL_USER))
<------><------>etm4_config_trace_mode(config);
 
<------>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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>val = config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>if (kstrtoul(buf, 16, &val))
<------><------>return -EINVAL;
 
<------>spin_lock(&drvdata->spinlock);
<------>if (val > drvdata->nr_pe) {
<------><------>spin_unlock(&drvdata->spinlock);
<------><------>return -EINVAL;
<------>}
 
<------>config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>val = config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>if (kstrtoul(buf, 16, &val))
<------><------>return -EINVAL;
 
<------>spin_lock(&drvdata->spinlock);
<------>switch (drvdata->nr_event) {
<------>case 0x0:
<------><------>/* EVENT0, bits[7:0] */
<------><------>config->eventctrl0 = val & 0xFF;
<------><------>break;
<------>case 0x1:
<------><------> /* EVENT1, bits[15:8] */
<------><------>config->eventctrl0 = val & 0xFFFF;
<------><------>break;
<------>case 0x2:
<------><------>/* EVENT2, bits[23:16] */
<------><------>config->eventctrl0 = val & 0xFFFFFF;
<------><------>break;
<------>case 0x3:
<------><------>/* EVENT3, bits[31:24] */
<------><------>config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>val = BMVAL(config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>if (kstrtoul(buf, 16, &val))
<------><------>return -EINVAL;
 
<------>spin_lock(&drvdata->spinlock);
<------>/* start by clearing all instruction event enable bits */
<------>config->eventctrl1 &= ~(BIT(0) | BIT(1) | BIT(2) | BIT(3));
<------>switch (drvdata->nr_event) {
<------>case 0x0:
<------><------>/* generate Event element for event 1 */
<------><------>config->eventctrl1 |= val & BIT(1);
<------><------>break;
<------>case 0x1:
<------><------>/* generate Event element for event 1 and 2 */
<------><------>config->eventctrl1 |= val & (BIT(0) | BIT(1));
<------><------>break;
<------>case 0x2:
<------><------>/* generate Event element for event 1, 2 and 3 */
<------><------>config->eventctrl1 |= val & (BIT(0) | BIT(1) | BIT(2));
<------><------>break;
<------>case 0x3:
<------><------>/* generate Event element for all 4 events */
<------><------>config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>val = config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>if (kstrtoul(buf, 16, &val))
<------><------>return -EINVAL;
<------>if (!drvdata->ts_size)
<------><------>return -EINVAL;
 
<------>config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>val = config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>if (kstrtoul(buf, 16, &val))
<------><------>return -EINVAL;
<------>if (drvdata->syncpr == true)
<------><------>return -EINVAL;
 
<------>config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>val = config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>if (kstrtoul(buf, 16, &val))
<------><------>return -EINVAL;
 
<------>/* mask off max threshold before checking min value */
<------>val &= ETM_CYC_THRESHOLD_MASK;
<------>if (val < drvdata->ccitmin)
<------><------>return -EINVAL;
 
<------>config->ccctlr = val;
<------>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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>val = config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>if (kstrtoul(buf, 16, &val))
<------><------>return -EINVAL;
<------>if (drvdata->trcbb == false)
<------><------>return -EINVAL;
<------>if (!drvdata->nr_addr_cmp)
<------><------>return -EINVAL;
 
<------>/*
<------> * Bit[8] controls include(1) / exclude(0), bits[0-7] select
<------> * individual range comparators. If include then at least 1
<------> * range must be selected.
<------> */
<------>if ((val & BIT(8)) && (BMVAL(val, 0, 7) == 0))
<------><------>return -EINVAL;
 
<------>config->bb_ctrl = val & GENMASK(8, 0);
<------>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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>val = config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>if (kstrtoul(buf, 16, &val))
<------><------>return -EINVAL;
 
<------>spin_lock(&drvdata->spinlock);
<------>val &= ETMv4_EVENT_MASK;
<------>config->vinst_ctrl &= ~ETMv4_EVENT_MASK;
<------>config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>val = (config->vinst_ctrl & TRCVICTLR_EXLEVEL_S_MASK) >> TRCVICTLR_EXLEVEL_S_SHIFT;
<------>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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>if (kstrtoul(buf, 16, &val))
<------><------>return -EINVAL;
 
<------>spin_lock(&drvdata->spinlock);
<------>/* clear all EXLEVEL_S bits  */
<------>config->vinst_ctrl &= ~(TRCVICTLR_EXLEVEL_S_MASK);
<------>/* enable instruction tracing for corresponding exception level */
<------>val &= drvdata->s_ex_level;
<------>config->vinst_ctrl |= (val << TRCVICTLR_EXLEVEL_S_SHIFT);
<------>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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>/* EXLEVEL_NS, bits[23:20] */
<------>val = (config->vinst_ctrl & TRCVICTLR_EXLEVEL_NS_MASK) >> TRCVICTLR_EXLEVEL_NS_SHIFT;
<------>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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>if (kstrtoul(buf, 16, &val))
<------><------>return -EINVAL;
 
<------>spin_lock(&drvdata->spinlock);
<------>/* clear EXLEVEL_NS bits  */
<------>config->vinst_ctrl &= ~(TRCVICTLR_EXLEVEL_NS_MASK);
<------>/* enable instruction tracing for corresponding exception level */
<------>val &= drvdata->ns_ex_level;
<------>config->vinst_ctrl |= (val << TRCVICTLR_EXLEVEL_NS_SHIFT);
<------>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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>val = config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>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);
<------>config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>spin_lock(&drvdata->spinlock);
<------>idx = config->addr_idx;
<------>val = BMVAL(config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>if (strlen(buf) >= 20)
<------><------>return -EINVAL;
<------>if (sscanf(buf, "%s", str) != 1)
<------><------>return -EINVAL;
 
<------>spin_lock(&drvdata->spinlock);
<------>idx = config->addr_idx;
<------>if (!strcmp(str, "instr"))
<------><------>/* TYPE, bits[1:0] */
<------><------>config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>idx = config->addr_idx;
<------>spin_lock(&drvdata->spinlock);
<------>if (!(config->addr_type[idx] == ETM_ADDR_TYPE_NONE ||
<------>      config->addr_type[idx] == ETM_ADDR_TYPE_SINGLE)) {
<------><------>spin_unlock(&drvdata->spinlock);
<------><------>return -EPERM;
<------>}
<------>val = (unsigned long)config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>if (kstrtoul(buf, 16, &val))
<------><------>return -EINVAL;
 
<------>spin_lock(&drvdata->spinlock);
<------>idx = config->addr_idx;
<------>if (!(config->addr_type[idx] == ETM_ADDR_TYPE_NONE ||
<------>      config->addr_type[idx] == ETM_ADDR_TYPE_SINGLE)) {
<------><------>spin_unlock(&drvdata->spinlock);
<------><------>return -EPERM;
<------>}
 
<------>config->addr_val[idx] = (u64)val;
<------>config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>spin_lock(&drvdata->spinlock);
<------>idx = config->addr_idx;
<------>if (idx % 2 != 0) {
<------><------>spin_unlock(&drvdata->spinlock);
<------><------>return -EPERM;
<------>}
<------>if (!((config->addr_type[idx] == ETM_ADDR_TYPE_NONE &&
<------>       config->addr_type[idx + 1] == ETM_ADDR_TYPE_NONE) ||
<------>      (config->addr_type[idx] == ETM_ADDR_TYPE_RANGE &&
<------>       config->addr_type[idx + 1] == ETM_ADDR_TYPE_RANGE))) {
<------><------>spin_unlock(&drvdata->spinlock);
<------><------>return -EPERM;
<------>}
 
<------>val1 = (unsigned long)config->addr_val[idx];
<------>val2 = (unsigned long)config->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);
<------>struct etmv4_config *config = &drvdata->config;
<------>int elements, exclude;
 
<------>elements = sscanf(buf, "%lx %lx %x", &val1, &val2, &exclude);
 
<------>/*  exclude is optional, but need at least two parameter */
<------>if (elements < 2)
<------><------>return -EINVAL;
<------>/* lower address comparator cannot have a higher address value */
<------>if (val1 > val2)
<------><------>return -EINVAL;
 
<------>spin_lock(&drvdata->spinlock);
<------>idx = config->addr_idx;
<------>if (idx % 2 != 0) {
<------><------>spin_unlock(&drvdata->spinlock);
<------><------>return -EPERM;
<------>}
 
<------>if (!((config->addr_type[idx] == ETM_ADDR_TYPE_NONE &&
<------>       config->addr_type[idx + 1] == ETM_ADDR_TYPE_NONE) ||
<------>      (config->addr_type[idx] == ETM_ADDR_TYPE_RANGE &&
<------>       config->addr_type[idx + 1] == ETM_ADDR_TYPE_RANGE))) {
<------><------>spin_unlock(&drvdata->spinlock);
<------><------>return -EPERM;
<------>}
 
<------>config->addr_val[idx] = (u64)val1;
<------>config->addr_type[idx] = ETM_ADDR_TYPE_RANGE;
<------>config->addr_val[idx + 1] = (u64)val2;
<------>config->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
<------> * use supplied value, or default to bit set in 'mode'
<------> */
<------>if (elements != 3)
<------><------>exclude = config->mode & ETM_MODE_EXCLUDE;
<------>etm4_set_mode_exclude(drvdata, exclude ? true : 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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>spin_lock(&drvdata->spinlock);
<------>idx = config->addr_idx;
 
<------>if (!(config->addr_type[idx] == ETM_ADDR_TYPE_NONE ||
<------>      config->addr_type[idx] == ETM_ADDR_TYPE_START)) {
<------><------>spin_unlock(&drvdata->spinlock);
<------><------>return -EPERM;
<------>}
 
<------>val = (unsigned long)config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>if (kstrtoul(buf, 16, &val))
<------><------>return -EINVAL;
 
<------>spin_lock(&drvdata->spinlock);
<------>idx = config->addr_idx;
<------>if (!drvdata->nr_addr_cmp) {
<------><------>spin_unlock(&drvdata->spinlock);
<------><------>return -EINVAL;
<------>}
<------>if (!(config->addr_type[idx] == ETM_ADDR_TYPE_NONE ||
<------>      config->addr_type[idx] == ETM_ADDR_TYPE_START)) {
<------><------>spin_unlock(&drvdata->spinlock);
<------><------>return -EPERM;
<------>}
 
<------>config->addr_val[idx] = (u64)val;
<------>config->addr_type[idx] = ETM_ADDR_TYPE_START;
<------>config->vissctlr |= BIT(idx);
<------>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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>spin_lock(&drvdata->spinlock);
<------>idx = config->addr_idx;
 
<------>if (!(config->addr_type[idx] == ETM_ADDR_TYPE_NONE ||
<------>      config->addr_type[idx] == ETM_ADDR_TYPE_STOP)) {
<------><------>spin_unlock(&drvdata->spinlock);
<------><------>return -EPERM;
<------>}
 
<------>val = (unsigned long)config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>if (kstrtoul(buf, 16, &val))
<------><------>return -EINVAL;
 
<------>spin_lock(&drvdata->spinlock);
<------>idx = config->addr_idx;
<------>if (!drvdata->nr_addr_cmp) {
<------><------>spin_unlock(&drvdata->spinlock);
<------><------>return -EINVAL;
<------>}
<------>if (!(config->addr_type[idx] == ETM_ADDR_TYPE_NONE ||
<------>       config->addr_type[idx] == ETM_ADDR_TYPE_STOP)) {
<------><------>spin_unlock(&drvdata->spinlock);
<------><------>return -EPERM;
<------>}
 
<------>config->addr_val[idx] = (u64)val;
<------>config->addr_type[idx] = ETM_ADDR_TYPE_STOP;
<------>config->vissctlr |= BIT(idx + 16);
<------>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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>spin_lock(&drvdata->spinlock);
<------>idx = config->addr_idx;
<------>/* CONTEXTTYPE, bits[3:2] */
<------>val = BMVAL(config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>if (strlen(buf) >= 10)
<------><------>return -EINVAL;
<------>if (sscanf(buf, "%s", str) != 1)
<------><------>return -EINVAL;
 
<------>spin_lock(&drvdata->spinlock);
<------>idx = config->addr_idx;
<------>if (!strcmp(str, "none"))
<------><------>/* start by clearing context type bits */
<------><------>config->addr_acc[idx] &= ~(BIT(2) | BIT(3));
<------>else if (!strcmp(str, "ctxid")) {
<------><------>/* 0b01 The trace unit performs a Context ID */
<------><------>if (drvdata->numcidc) {
<------><------><------>config->addr_acc[idx] |= BIT(2);
<------><------><------>config->addr_acc[idx] &= ~BIT(3);
<------><------>}
<------>} else if (!strcmp(str, "vmid")) {
<------><------>/* 0b10 The trace unit performs a VMID */
<------><------>if (drvdata->numvmidc) {
<------><------><------>config->addr_acc[idx] &= ~BIT(2);
<------><------><------>config->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)
<------><------><------>config->addr_acc[idx] |= BIT(2);
<------><------>if (drvdata->numvmidc)
<------><------><------>config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>spin_lock(&drvdata->spinlock);
<------>idx = config->addr_idx;
<------>/* context ID comparator bits[6:4] */
<------>val = BMVAL(config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>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 = config->addr_idx;
<------>/* clear context ID comparator bits[6:4] */
<------>config->addr_acc[idx] &= ~(BIT(4) | BIT(5) | BIT(6));
<------>config->addr_acc[idx] |= (val << 4);
<------>spin_unlock(&drvdata->spinlock);
<------>return size;
}
static DEVICE_ATTR_RW(addr_context);
 
static ssize_t addr_exlevel_s_ns_show(struct device *dev,
<------><------><------><------>      struct device_attribute *attr,
<------><------><------><------>      char *buf)
{
<------>u8 idx;
<------>unsigned long val;
<------>struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>spin_lock(&drvdata->spinlock);
<------>idx = config->addr_idx;
<------>val = BMVAL(config->addr_acc[idx], 8, 14);
<------>spin_unlock(&drvdata->spinlock);
<------>return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
}
 
static ssize_t addr_exlevel_s_ns_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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>if (kstrtoul(buf, 0, &val))
<------><------>return -EINVAL;
 
<------>if (val & ~((GENMASK(14, 8) >> 8)))
<------><------>return -EINVAL;
 
<------>spin_lock(&drvdata->spinlock);
<------>idx = config->addr_idx;
<------>/* clear Exlevel_ns & Exlevel_s bits[14:12, 11:8], bit[15] is res0 */
<------>config->addr_acc[idx] &= ~(GENMASK(14, 8));
<------>config->addr_acc[idx] |= (val << 8);
<------>spin_unlock(&drvdata->spinlock);
<------>return size;
}
static DEVICE_ATTR_RW(addr_exlevel_s_ns);
 
static const char * const addr_type_names[] = {
<------>"unused",
<------>"single",
<------>"range",
<------>"start",
<------>"stop"
};
 
static ssize_t addr_cmp_view_show(struct device *dev,
<------><------><------><------>  struct device_attribute *attr, char *buf)
{
<------>u8 idx, addr_type;
<------>unsigned long addr_v, addr_v2, addr_ctrl;
<------>struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
<------>struct etmv4_config *config = &drvdata->config;
<------>int size = 0;
<------>bool exclude = false;
 
<------>spin_lock(&drvdata->spinlock);
<------>idx = config->addr_idx;
<------>addr_v = config->addr_val[idx];
<------>addr_ctrl = config->addr_acc[idx];
<------>addr_type = config->addr_type[idx];
<------>if (addr_type == ETM_ADDR_TYPE_RANGE) {
<------><------>if (idx & 0x1) {
<------><------><------>idx -= 1;
<------><------><------>addr_v2 = addr_v;
<------><------><------>addr_v = config->addr_val[idx];
<------><------>} else {
<------><------><------>addr_v2 = config->addr_val[idx + 1];
<------><------>}
<------><------>exclude = config->viiectlr & BIT(idx / 2 + 16);
<------>}
<------>spin_unlock(&drvdata->spinlock);
<------>if (addr_type) {
<------><------>size = scnprintf(buf, PAGE_SIZE, "addr_cmp[%i] %s %#lx", idx,
<------><------><------><------> addr_type_names[addr_type], addr_v);
<------><------>if (addr_type == ETM_ADDR_TYPE_RANGE) {
<------><------><------>size += scnprintf(buf + size, PAGE_SIZE - size,
<------><------><------><------><------>  " %#lx %s", addr_v2,
<------><------><------><------><------>  exclude ? "exclude" : "include");
<------><------>}
<------><------>size += scnprintf(buf + size, PAGE_SIZE - size,
<------><------><------><------>  " ctrl(%#lx)\n", addr_ctrl);
<------>} else {
<------><------>size = scnprintf(buf, PAGE_SIZE, "addr_cmp[%i] unused\n", idx);
<------>}
<------>return size;
}
static DEVICE_ATTR_RO(addr_cmp_view);
 
static ssize_t vinst_pe_cmp_start_stop_show(struct device *dev,
<------><------><------><------><------>    struct device_attribute *attr,
<------><------><------><------><------>    char *buf)
{
<------>unsigned long val;
<------>struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>if (!drvdata->nr_pe_cmp)
<------><------>return -EINVAL;
<------>val = config->vipcssctlr;
<------>return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
}
static ssize_t vinst_pe_cmp_start_stop_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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>if (kstrtoul(buf, 16, &val))
<------><------>return -EINVAL;
<------>if (!drvdata->nr_pe_cmp)
<------><------>return -EINVAL;
 
<------>spin_lock(&drvdata->spinlock);
<------>config->vipcssctlr = val;
<------>spin_unlock(&drvdata->spinlock);
<------>return size;
}
static DEVICE_ATTR_RW(vinst_pe_cmp_start_stop);
 
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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>val = config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>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);
<------>config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>val = config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>if (kstrtoul(buf, 16, &val))
<------><------>return -EINVAL;
<------>if (val >= drvdata->nrseqstate)
<------><------>return -EINVAL;
 
<------>config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>spin_lock(&drvdata->spinlock);
<------>idx = config->seq_idx;
<------>val = config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>if (kstrtoul(buf, 16, &val))
<------><------>return -EINVAL;
 
<------>spin_lock(&drvdata->spinlock);
<------>idx = config->seq_idx;
<------>/* Seq control has two masks B[15:8] F[7:0] */
<------>config->seq_ctrl[idx] = val & 0xFFFF;
<------>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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>val = config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>if (kstrtoul(buf, 16, &val))
<------><------>return -EINVAL;
<------>if (!(drvdata->nrseqstate))
<------><------>return -EINVAL;
 
<------>config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>val = config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>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);
<------>config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>spin_lock(&drvdata->spinlock);
<------>idx = config->cntr_idx;
<------>val = config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>if (kstrtoul(buf, 16, &val))
<------><------>return -EINVAL;
<------>if (val > ETM_CNTR_MAX_VAL)
<------><------>return -EINVAL;
 
<------>spin_lock(&drvdata->spinlock);
<------>idx = config->cntr_idx;
<------>config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>spin_lock(&drvdata->spinlock);
<------>idx = config->cntr_idx;
<------>val = config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>if (kstrtoul(buf, 16, &val))
<------><------>return -EINVAL;
<------>if (val > ETM_CNTR_MAX_VAL)
<------><------>return -EINVAL;
 
<------>spin_lock(&drvdata->spinlock);
<------>idx = config->cntr_idx;
<------>config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>spin_lock(&drvdata->spinlock);
<------>idx = config->cntr_idx;
<------>val = config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>if (kstrtoul(buf, 16, &val))
<------><------>return -EINVAL;
 
<------>spin_lock(&drvdata->spinlock);
<------>idx = config->cntr_idx;
<------>config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>val = config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>if (kstrtoul(buf, 16, &val))
<------><------>return -EINVAL;
<------>/*
<------> * Resource selector pair 0 is always implemented and reserved,
<------> * namely an idx with 0 and 1 is illegal.
<------> */
<------>if ((val < 2) || (val >= 2 * 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);
<------>config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>spin_lock(&drvdata->spinlock);
<------>idx = config->res_idx;
<------>val = config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>if (kstrtoul(buf, 16, &val))
<------><------>return -EINVAL;
 
<------>spin_lock(&drvdata->spinlock);
<------>idx = config->res_idx;
<------>/* For odd idx pair inversal bit is RES0 */
<------>if (idx % 2 != 0)
<------><------>/* PAIRINV, bit[21] */
<------><------>val &= ~BIT(21);
<------>config->res_ctrl[idx] = val & GENMASK(21, 0);
<------>spin_unlock(&drvdata->spinlock);
<------>return size;
}
static DEVICE_ATTR_RW(res_ctrl);
 
static ssize_t sshot_idx_show(struct device *dev,
<------><------><------>      struct device_attribute *attr, char *buf)
{
<------>unsigned long val;
<------>struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>val = config->ss_idx;
<------>return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
}
 
static ssize_t sshot_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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>if (kstrtoul(buf, 16, &val))
<------><------>return -EINVAL;
<------>if (val >= drvdata->nr_ss_cmp)
<------><------>return -EINVAL;
 
<------>spin_lock(&drvdata->spinlock);
<------>config->ss_idx = val;
<------>spin_unlock(&drvdata->spinlock);
<------>return size;
}
static DEVICE_ATTR_RW(sshot_idx);
 
static ssize_t sshot_ctrl_show(struct device *dev,
<------><------><------>       struct device_attribute *attr,
<------><------><------>       char *buf)
{
<------>unsigned long val;
<------>struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>spin_lock(&drvdata->spinlock);
<------>val = config->ss_ctrl[config->ss_idx];
<------>spin_unlock(&drvdata->spinlock);
<------>return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
}
 
static ssize_t sshot_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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>if (kstrtoul(buf, 16, &val))
<------><------>return -EINVAL;
 
<------>spin_lock(&drvdata->spinlock);
<------>idx = config->ss_idx;
<------>config->ss_ctrl[idx] = val & GENMASK(24, 0);
<------>/* must clear bit 31 in related status register on programming */
<------>config->ss_status[idx] &= ~BIT(31);
<------>spin_unlock(&drvdata->spinlock);
<------>return size;
}
static DEVICE_ATTR_RW(sshot_ctrl);
 
static ssize_t sshot_status_show(struct device *dev,
<------><------><------><------> struct device_attribute *attr, char *buf)
{
<------>unsigned long val;
<------>struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>spin_lock(&drvdata->spinlock);
<------>val = config->ss_status[config->ss_idx];
<------>spin_unlock(&drvdata->spinlock);
<------>return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
}
static DEVICE_ATTR_RO(sshot_status);
 
static ssize_t sshot_pe_ctrl_show(struct device *dev,
<------><------><------><------>  struct device_attribute *attr,
<------><------><------><------>  char *buf)
{
<------>unsigned long val;
<------>struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>spin_lock(&drvdata->spinlock);
<------>val = config->ss_pe_cmp[config->ss_idx];
<------>spin_unlock(&drvdata->spinlock);
<------>return scnprintf(buf, PAGE_SIZE, "%#lx\n", val);
}
 
static ssize_t sshot_pe_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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>if (kstrtoul(buf, 16, &val))
<------><------>return -EINVAL;
 
<------>spin_lock(&drvdata->spinlock);
<------>idx = config->ss_idx;
<------>config->ss_pe_cmp[idx] = val & GENMASK(7, 0);
<------>/* must clear bit 31 in related status register on programming */
<------>config->ss_status[idx] &= ~BIT(31);
<------>spin_unlock(&drvdata->spinlock);
<------>return size;
}
static DEVICE_ATTR_RW(sshot_pe_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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>val = config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>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);
<------>config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>/*
<------> * Don't use contextID tracing if coming from a PID namespace.  See
<------> * comment in ctxid_pid_store().
<------> */
<------>if (task_active_pid_ns(current) != &init_pid_ns)
<------><------>return -EINVAL;
 
<------>spin_lock(&drvdata->spinlock);
<------>idx = config->ctxid_idx;
<------>val = (unsigned long)config->ctxid_pid[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 pid;
<------>struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>/*
<------> * When contextID tracing is enabled the tracers will insert the
<------> * value found in the contextID register in the trace stream.  But if
<------> * a process is in a namespace the PID of that process as seen from the
<------> * namespace won't be what the kernel sees, something that makes the
<------> * feature confusing and can potentially leak kernel only information.
<------> * As such refuse to use the feature if @current is not in the initial
<------> * PID namespace.
<------> */
<------>if (task_active_pid_ns(current) != &init_pid_ns)
<------><------>return -EINVAL;
 
<------>/*
<------> * 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, &pid))
<------><------>return -EINVAL;
 
<------>spin_lock(&drvdata->spinlock);
<------>idx = config->ctxid_idx;
<------>config->ctxid_pid[idx] = (u64)pid;
<------>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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>/*
<------> * Don't use contextID tracing if coming from a PID namespace.  See
<------> * comment in ctxid_pid_store().
<------> */
<------>if (task_active_pid_ns(current) != &init_pid_ns)
<------><------>return -EINVAL;
 
<------>spin_lock(&drvdata->spinlock);
<------>val1 = config->ctxid_mask0;
<------>val2 = config->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);
<------>struct etmv4_config *config = &drvdata->config;
<------>int nr_inputs;
 
<------>/*
<------> * Don't use contextID tracing if coming from a PID namespace.  See
<------> * comment in ctxid_pid_store().
<------> */
<------>if (task_active_pid_ns(current) != &init_pid_ns)
<------><------>return -EINVAL;
 
<------>/*
<------> * 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;
<------>/* one mask if <= 4 comparators, two for up to 8 */
<------>nr_inputs = sscanf(buf, "%lx %lx", &val1, &val2);
<------>if ((drvdata->numcidc > 4) && (nr_inputs != 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] */
<------><------>config->ctxid_mask0 = val1 & 0xFF;
<------><------>break;
<------>case 0x2:
<------><------>/* COMP1, bits[15:8] */
<------><------>config->ctxid_mask0 = val1 & 0xFFFF;
<------><------>break;
<------>case 0x3:
<------><------>/* COMP2, bits[23:16] */
<------><------>config->ctxid_mask0 = val1 & 0xFFFFFF;
<------><------>break;
<------>case 0x4:
<------><------> /* COMP3, bits[31:24] */
<------><------>config->ctxid_mask0 = val1;
<------><------>break;
<------>case 0x5:
<------><------>/* COMP4, bits[7:0] */
<------><------>config->ctxid_mask0 = val1;
<------><------>config->ctxid_mask1 = val2 & 0xFF;
<------><------>break;
<------>case 0x6:
<------><------>/* COMP5, bits[15:8] */
<------><------>config->ctxid_mask0 = val1;
<------><------>config->ctxid_mask1 = val2 & 0xFFFF;
<------><------>break;
<------>case 0x7:
<------><------>/* COMP6, bits[23:16] */
<------><------>config->ctxid_mask0 = val1;
<------><------>config->ctxid_mask1 = val2 & 0xFFFFFF;
<------><------>break;
<------>case 0x8:
<------><------>/* COMP7, bits[31:24] */
<------><------>config->ctxid_mask0 = val1;
<------><------>config->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 = config->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)
<------><------><------><------>config->ctxid_pid[i] &= ~(0xFFUL << (j * 8));
<------><------><------>maskbyte >>= 1;
<------><------>}
<------><------>/* Select the next ctxid comparator mask value */
<------><------>if (i == 3)
<------><------><------>/* ctxid comparators[4-7] */
<------><------><------>mask = config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>val = config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>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);
<------>config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>val = (unsigned long)config->vmid_val[config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>/*
<------> * 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);
<------>config->vmid_val[config->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);
<------>struct etmv4_config *config = &drvdata->config;
 
<------>spin_lock(&drvdata->spinlock);
<------>val1 = config->vmid_mask0;
<------>val2 = config->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);
<------>struct etmv4_config *config = &drvdata->config;
<------>int nr_inputs;
 
<------>/*
<------> * 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;
<------>/* one mask if <= 4 comparators, two for up to 8 */
<------>nr_inputs = sscanf(buf, "%lx %lx", &val1, &val2);
<------>if ((drvdata->numvmidc > 4) && (nr_inputs != 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] */
<------><------>config->vmid_mask0 = val1 & 0xFF;
<------><------>break;
<------>case 0x2:
<------><------>/* COMP1, bits[15:8] */
<------><------>config->vmid_mask0 = val1 & 0xFFFF;
<------><------>break;
<------>case 0x3:
<------><------>/* COMP2, bits[23:16] */
<------><------>config->vmid_mask0 = val1 & 0xFFFFFF;
<------><------>break;
<------>case 0x4:
<------><------>/* COMP3, bits[31:24] */
<------><------>config->vmid_mask0 = val1;
<------><------>break;
<------>case 0x5:
<------><------>/* COMP4, bits[7:0] */
<------><------>config->vmid_mask0 = val1;
<------><------>config->vmid_mask1 = val2 & 0xFF;
<------><------>break;
<------>case 0x6:
<------><------>/* COMP5, bits[15:8] */
<------><------>config->vmid_mask0 = val1;
<------><------>config->vmid_mask1 = val2 & 0xFFFF;
<------><------>break;
<------>case 0x7:
<------><------>/* COMP6, bits[23:16] */
<------><------>config->vmid_mask0 = val1;
<------><------>config->vmid_mask1 = val2 & 0xFFFFFF;
<------><------>break;
<------>case 0x8:
<------><------>/* COMP7, bits[31:24] */
<------><------>config->vmid_mask0 = val1;
<------><------>config->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 = config->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)
<------><------><------><------>config->vmid_val[i] &= ~(0xFFUL << (j * 8));
<------><------><------>maskbyte >>= 1;
<------><------>}
<------><------>/* Select the next vmid comparator mask value */
<------><------>if (i == 3)
<------><------><------>/* vmid comparators[4-7] */
<------><------><------>mask = config->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_addr_exlevel_s_ns.attr,
<------>&dev_attr_addr_cmp_view.attr,
<------>&dev_attr_vinst_pe_cmp_start_stop.attr,
<------>&dev_attr_sshot_idx.attr,
<------>&dev_attr_sshot_ctrl.attr,
<------>&dev_attr_sshot_pe_ctrl.attr,
<------>&dev_attr_sshot_status.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,
};
 
struct etmv4_reg {
<------>struct coresight_device *csdev;
<------>u32 offset;
<------>u32 data;
};
 
static void do_smp_cross_read(void *data)
{
<------>struct etmv4_reg *reg = data;
 
<------>reg->data = etm4x_relaxed_read32(&reg->csdev->access, reg->offset);
}
 
static u32 etmv4_cross_read(const struct etmv4_drvdata *drvdata, u32 offset)
{
<------>struct etmv4_reg reg;
 
<------>reg.offset = offset;
<------>reg.csdev = drvdata->csdev;
 
<------>/*
<------> * smp cross call ensures the CPU will be powered up before
<------> * accessing the ETMv4 trace core registers
<------> */
<------>smp_call_function_single(drvdata->cpu, do_smp_cross_read, &reg, 1);
<------>return reg.data;
}
 
static inline u32 coresight_etm4x_attr_to_offset(struct device_attribute *attr)
{
<------>struct dev_ext_attribute *eattr;
 
<------>eattr = container_of(attr, struct dev_ext_attribute, attr);
<------>return (u32)(unsigned long)eattr->var;
}
 
static ssize_t coresight_etm4x_reg_show(struct device *dev,
<------><------><------><------><------>struct device_attribute *d_attr,
<------><------><------><------><------>char *buf)
{
<------>u32 val, offset;
<------>struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
 
<------>offset = coresight_etm4x_attr_to_offset(d_attr);
 
<------>pm_runtime_get_sync(dev->parent);
<------>val = etmv4_cross_read(drvdata, offset);
<------>pm_runtime_put_sync(dev->parent);
 
<------>return scnprintf(buf, PAGE_SIZE, "0x%x\n", val);
}
 
static inline bool
etm4x_register_implemented(struct etmv4_drvdata *drvdata, u32 offset)
{
<------>switch (offset) {
<------>ETM_COMMON_SYSREG_LIST_CASES
<------><------>/*
<------><------> * Common registers to ETE & ETM4x accessible via system
<------><------> * instructions are always implemented.
<------><------> */
<------><------>return true;
 
<------>ETM4x_ONLY_SYSREG_LIST_CASES
<------><------>/*
<------><------> * We only support etm4x and ete. So if the device is not
<------><------> * ETE, it must be ETMv4x.
<------><------> */
<------><------>return !etm4x_is_ete(drvdata);
 
<------>ETM4x_MMAP_LIST_CASES
<------><------>/*
<------><------> * Registers accessible only via memory-mapped registers
<------><------> * must not be accessed via system instructions.
<------><------> * We cannot access the drvdata->csdev here, as this
<------><------> * function is called during the device creation, via
<------><------> * coresight_register() and the csdev is not initialized
<------><------> * until that is done. So rely on the drvdata->base to
<------><------> * detect if we have a memory mapped access.
<------><------> * Also ETE doesn't implement memory mapped access, thus
<------><------> * it is sufficient to check that we are using mmio.
<------><------> */
<------><------>return !!drvdata->base;
 
<------>ETE_ONLY_SYSREG_LIST_CASES
<------><------>return etm4x_is_ete(drvdata);
<------>}
 
<------>return false;
}
 
/*
 * Hide the ETM4x registers that may not be available on the
 * hardware.
 * There are certain management registers unavailable via system
 * instructions. Make those sysfs attributes hidden on such
 * systems.
 */
static umode_t
coresight_etm4x_attr_reg_implemented(struct kobject *kobj,
<------><------><------><------>     struct attribute *attr, int unused)
{
<------>struct device *dev = kobj_to_dev(kobj);
<------>struct etmv4_drvdata *drvdata = dev_get_drvdata(dev->parent);
<------>struct device_attribute *d_attr;
<------>u32 offset;
 
<------>d_attr = container_of(attr, struct device_attribute, attr);
<------>offset = coresight_etm4x_attr_to_offset(d_attr);
 
<------>if (etm4x_register_implemented(drvdata, offset))
<------><------>return attr->mode;
<------>return 0;
}
 
#define coresight_etm4x_reg(name, offset)				\
<------>&((struct dev_ext_attribute[]) {				\
<------>   {								\
<------><------>__ATTR(name, 0444, coresight_etm4x_reg_show, NULL),	\
<------><------>(void *)(unsigned long)offset				\
<------>   }								\
<------>})[0].attr.attr
 
static struct attribute *coresight_etmv4_mgmt_attrs[] = {
<------>coresight_etm4x_reg(trcpdcr, TRCPDCR),
<------>coresight_etm4x_reg(trcpdsr, TRCPDSR),
<------>coresight_etm4x_reg(trclsr, TRCLSR),
<------>coresight_etm4x_reg(trcauthstatus, TRCAUTHSTATUS),
<------>coresight_etm4x_reg(trcdevid, TRCDEVID),
<------>coresight_etm4x_reg(trcdevtype, TRCDEVTYPE),
<------>coresight_etm4x_reg(trcpidr0, TRCPIDR0),
<------>coresight_etm4x_reg(trcpidr1, TRCPIDR1),
<------>coresight_etm4x_reg(trcpidr2, TRCPIDR2),
<------>coresight_etm4x_reg(trcpidr3, TRCPIDR3),
<------>coresight_etm4x_reg(trcoslsr, TRCOSLSR),
<------>coresight_etm4x_reg(trcconfig, TRCCONFIGR),
<------>coresight_etm4x_reg(trctraceid, TRCTRACEIDR),
<------>coresight_etm4x_reg(trcdevarch, TRCDEVARCH),
<------>NULL,
};
 
static struct attribute *coresight_etmv4_trcidr_attrs[] = {
<------>coresight_etm4x_reg(trcidr0, TRCIDR0),
<------>coresight_etm4x_reg(trcidr1, TRCIDR1),
<------>coresight_etm4x_reg(trcidr2, TRCIDR2),
<------>coresight_etm4x_reg(trcidr3, TRCIDR3),
<------>coresight_etm4x_reg(trcidr4, TRCIDR4),
<------>coresight_etm4x_reg(trcidr5, TRCIDR5),
<------>/* trcidr[6,7] are reserved */
<------>coresight_etm4x_reg(trcidr8, TRCIDR8),
<------>coresight_etm4x_reg(trcidr9, TRCIDR9),
<------>coresight_etm4x_reg(trcidr10, TRCIDR10),
<------>coresight_etm4x_reg(trcidr11, TRCIDR11),
<------>coresight_etm4x_reg(trcidr12, TRCIDR12),
<------>coresight_etm4x_reg(trcidr13, TRCIDR13),
<------>NULL,
};
 
static const struct attribute_group coresight_etmv4_group = {
<------>.attrs = coresight_etmv4_attrs,
};
 
static const struct attribute_group coresight_etmv4_mgmt_group = {
<------>.is_visible = coresight_etm4x_attr_reg_implemented,
<------>.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,
};