diff options
Diffstat (limited to 'drivers/hwtracing/coresight/coresight-tpdm.c')
| -rw-r--r-- | drivers/hwtracing/coresight/coresight-tpdm.c | 155 |
1 files changed, 148 insertions, 7 deletions
diff --git a/drivers/hwtracing/coresight/coresight-tpdm.c b/drivers/hwtracing/coresight/coresight-tpdm.c index e04c41f83265..693b90c82f3a 100644 --- a/drivers/hwtracing/coresight/coresight-tpdm.c +++ b/drivers/hwtracing/coresight/coresight-tpdm.c @@ -51,6 +51,16 @@ static ssize_t tpdm_simple_dataset_show(struct device *dev, return -EINVAL; return sysfs_emit(buf, "0x%x\n", drvdata->dsb->trig_patt_mask[tpdm_attr->idx]); + case DSB_PATT: + if (tpdm_attr->idx >= TPDM_DSB_MAX_PATT) + return -EINVAL; + return sysfs_emit(buf, "0x%x\n", + drvdata->dsb->patt_val[tpdm_attr->idx]); + case DSB_PATT_MASK: + if (tpdm_attr->idx >= TPDM_DSB_MAX_PATT) + return -EINVAL; + return sysfs_emit(buf, "0x%x\n", + drvdata->dsb->patt_mask[tpdm_attr->idx]); } return -EINVAL; } @@ -85,6 +95,18 @@ static ssize_t tpdm_simple_dataset_store(struct device *dev, else ret = -EINVAL; break; + case DSB_PATT: + if (tpdm_attr->idx < TPDM_DSB_MAX_PATT) + drvdata->dsb->patt_val[tpdm_attr->idx] = val; + else + ret = -EINVAL; + break; + case DSB_PATT_MASK: + if (tpdm_attr->idx < TPDM_DSB_MAX_PATT) + drvdata->dsb->patt_mask[tpdm_attr->idx] = val; + else + ret = -EINVAL; + break; default: ret = -EINVAL; } @@ -141,6 +163,36 @@ static void set_dsb_mode(struct tpdm_drvdata *drvdata, u32 *val) *val &= ~TPDM_DSB_CR_MODE; } +static void set_dsb_tier(struct tpdm_drvdata *drvdata) +{ + u32 val; + + val = readl_relaxed(drvdata->base + TPDM_DSB_TIER); + + /* Clear all relevant fields */ + val &= ~(TPDM_DSB_TIER_PATT_TSENAB | TPDM_DSB_TIER_PATT_TYPE | + TPDM_DSB_TIER_XTRIG_TSENAB); + + /* Set pattern timestamp type and enablement */ + if (drvdata->dsb->patt_ts) { + val |= TPDM_DSB_TIER_PATT_TSENAB; + if (drvdata->dsb->patt_type) + val |= TPDM_DSB_TIER_PATT_TYPE; + else + val &= ~TPDM_DSB_TIER_PATT_TYPE; + } else { + val &= ~TPDM_DSB_TIER_PATT_TSENAB; + } + + /* Set trigger timestamp */ + if (drvdata->dsb->trig_ts) + val |= TPDM_DSB_TIER_XTRIG_TSENAB; + else + val &= ~TPDM_DSB_TIER_XTRIG_TSENAB; + + writel_relaxed(val, drvdata->base + TPDM_DSB_TIER); +} + static void tpdm_enable_dsb(struct tpdm_drvdata *drvdata) { u32 val, i; @@ -152,18 +204,17 @@ static void tpdm_enable_dsb(struct tpdm_drvdata *drvdata) writel_relaxed(drvdata->dsb->edge_ctrl_mask[i], drvdata->base + TPDM_DSB_EDCMR(i)); for (i = 0; i < TPDM_DSB_MAX_PATT; i++) { + writel_relaxed(drvdata->dsb->patt_val[i], + drvdata->base + TPDM_DSB_TPR(i)); + writel_relaxed(drvdata->dsb->patt_mask[i], + drvdata->base + TPDM_DSB_TPMR(i)); writel_relaxed(drvdata->dsb->trig_patt[i], drvdata->base + TPDM_DSB_XPR(i)); writel_relaxed(drvdata->dsb->trig_patt_mask[i], drvdata->base + TPDM_DSB_XPMR(i)); } - val = readl_relaxed(drvdata->base + TPDM_DSB_TIER); - /* Set trigger timestamp */ - if (drvdata->dsb->trig_ts) - val |= TPDM_DSB_TIER_XTRIG_TSENAB; - else - val &= ~TPDM_DSB_TIER_XTRIG_TSENAB; - writel_relaxed(val, drvdata->base + TPDM_DSB_TIER); + + set_dsb_tier(drvdata); val = readl_relaxed(drvdata->base + TPDM_DSB_CR); /* Set the mode of DSB dataset */ @@ -483,6 +534,67 @@ static ssize_t ctrl_mask_store(struct device *dev, } static DEVICE_ATTR_WO(ctrl_mask); +static ssize_t enable_ts_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct tpdm_drvdata *drvdata = dev_get_drvdata(dev->parent); + + return sysfs_emit(buf, "%u\n", + (unsigned int)drvdata->dsb->patt_ts); +} + +/* + * value 1: Enable/Disable DSB pattern timestamp + */ +static ssize_t enable_ts_store(struct device *dev, + struct device_attribute *attr, + const char *buf, + size_t size) +{ + struct tpdm_drvdata *drvdata = dev_get_drvdata(dev->parent); + unsigned long val; + + if ((kstrtoul(buf, 0, &val)) || (val & ~1UL)) + return -EINVAL; + + spin_lock(&drvdata->spinlock); + drvdata->dsb->patt_ts = !!val; + spin_unlock(&drvdata->spinlock); + return size; +} +static DEVICE_ATTR_RW(enable_ts); + +static ssize_t set_type_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct tpdm_drvdata *drvdata = dev_get_drvdata(dev->parent); + + return sysfs_emit(buf, "%u\n", + (unsigned int)drvdata->dsb->patt_type); +} + +/* + * value 1: Set DSB pattern type + */ +static ssize_t set_type_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t size) +{ + struct tpdm_drvdata *drvdata = dev_get_drvdata(dev->parent); + unsigned long val; + + if ((kstrtoul(buf, 0, &val)) || (val & ~1UL)) + return -EINVAL; + + spin_lock(&drvdata->spinlock); + drvdata->dsb->patt_type = val; + spin_unlock(&drvdata->spinlock); + return size; +} +static DEVICE_ATTR_RW(set_type); + static ssize_t dsb_trig_type_show(struct device *dev, struct device_attribute *attr, char *buf) { @@ -605,6 +717,28 @@ static struct attribute *tpdm_dsb_trig_patt_attrs[] = { NULL, }; +static struct attribute *tpdm_dsb_patt_attrs[] = { + DSB_PATT_ATTR(0), + DSB_PATT_ATTR(1), + DSB_PATT_ATTR(2), + DSB_PATT_ATTR(3), + DSB_PATT_ATTR(4), + DSB_PATT_ATTR(5), + DSB_PATT_ATTR(6), + DSB_PATT_ATTR(7), + DSB_PATT_MASK_ATTR(0), + DSB_PATT_MASK_ATTR(1), + DSB_PATT_MASK_ATTR(2), + DSB_PATT_MASK_ATTR(3), + DSB_PATT_MASK_ATTR(4), + DSB_PATT_MASK_ATTR(5), + DSB_PATT_MASK_ATTR(6), + DSB_PATT_MASK_ATTR(7), + &dev_attr_enable_ts.attr, + &dev_attr_set_type.attr, + NULL, +}; + static struct attribute *tpdm_dsb_attrs[] = { &dev_attr_dsb_mode.attr, &dev_attr_dsb_trig_ts.attr, @@ -629,11 +763,18 @@ static struct attribute_group tpdm_dsb_trig_patt_grp = { .name = "dsb_trig_patt", }; +static struct attribute_group tpdm_dsb_patt_grp = { + .attrs = tpdm_dsb_patt_attrs, + .is_visible = tpdm_dsb_is_visible, + .name = "dsb_patt", +}; + static const struct attribute_group *tpdm_attr_grps[] = { &tpdm_attr_grp, &tpdm_dsb_attr_grp, &tpdm_dsb_edge_grp, &tpdm_dsb_trig_patt_grp, + &tpdm_dsb_patt_grp, NULL, }; |