| Message ID | 1705634583-17631-3-git-send-email-quic_taozha@quicinc.com |
|---|---|
| State | New |
| Headers | show |
| Series | [v4,01/10] coresight-tpdm: Optimize the store function of tpdm simple dataset | expand |
On 1/19/2024 7:35 PM, Suzuki K Poulose wrote: > On 19/01/2024 03:22, Tao Zhang wrote: >> Since the function tpdm_has_dsb_dataset will be called by TPDA >> driver in subsequent patches, it is moved to the header file. >> And move this judgement form the function __tpdm_{enable/disable} >> to the beginning of the function tpdm_{enable/disable}_dsb. >> >> Signed-off-by: Tao Zhang <quic_taozha@quicinc.com> >> --- >> drivers/hwtracing/coresight/coresight-tpdm.c | 82 ++++++++++---------- >> drivers/hwtracing/coresight/coresight-tpdm.h | 4 + >> 2 files changed, 43 insertions(+), 43 deletions(-) >> >> diff --git a/drivers/hwtracing/coresight/coresight-tpdm.c >> b/drivers/hwtracing/coresight/coresight-tpdm.c >> index 0427c0fc0bf3..6549f71ba150 100644 >> --- a/drivers/hwtracing/coresight/coresight-tpdm.c >> +++ b/drivers/hwtracing/coresight/coresight-tpdm.c >> @@ -125,11 +125,6 @@ static ssize_t tpdm_simple_dataset_store(struct >> device *dev, >> return ret; >> } >> -static bool tpdm_has_dsb_dataset(struct tpdm_drvdata *drvdata) >> -{ >> - return (drvdata->datasets & TPDM_PIDR0_DS_DSB); >> -} >> - >> static umode_t tpdm_dsb_is_visible(struct kobject *kobj, >> struct attribute *attr, int n) >> { >> @@ -232,38 +227,39 @@ static void tpdm_enable_dsb(struct tpdm_drvdata >> *drvdata) >> { >> u32 val, i; >> - for (i = 0; i < TPDM_DSB_MAX_EDCR; i++) >> - writel_relaxed(drvdata->dsb->edge_ctrl[i], >> - drvdata->base + TPDM_DSB_EDCR(i)); >> - for (i = 0; i < TPDM_DSB_MAX_EDCMR; i++) >> - 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)); >> - } >> - >> - set_dsb_tier(drvdata); >> + if (tpdm_has_dsb_dataset(drvdata)) { > > Minor nit: If you do : > > if (!tpdm_has_dsb_dataset(drvdata)) > return; > > You don't need any of these additional churns of moving them. Sure，I will update in the next patch series. > >> + for (i = 0; i < TPDM_DSB_MAX_EDCR; i++) >> + writel_relaxed(drvdata->dsb->edge_ctrl[i], >> + drvdata->base + TPDM_DSB_EDCR(i)); >> + for (i = 0; i < TPDM_DSB_MAX_EDCMR; i++) >> + 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)); >> + } >> - set_dsb_msr(drvdata); >> + set_dsb_tier(drvdata); >> + set_dsb_msr(drvdata); >> - val = readl_relaxed(drvdata->base + TPDM_DSB_CR); >> - /* Set the mode of DSB dataset */ >> - set_dsb_mode(drvdata, &val); >> - /* Set trigger type */ >> - if (drvdata->dsb->trig_type) >> - val |= TPDM_DSB_CR_TRIG_TYPE; >> - else >> - val &= ~TPDM_DSB_CR_TRIG_TYPE; >> - /* Set the enable bit of DSB control register to 1 */ >> - val |= TPDM_DSB_CR_ENA; >> - writel_relaxed(val, drvdata->base + TPDM_DSB_CR); >> + val = readl_relaxed(drvdata->base + TPDM_DSB_CR); >> + /* Set the mode of DSB dataset */ >> + set_dsb_mode(drvdata, &val); >> + /* Set trigger type */ >> + if (drvdata->dsb->trig_type) >> + val |= TPDM_DSB_CR_TRIG_TYPE; >> + else >> + val &= ~TPDM_DSB_CR_TRIG_TYPE; >> + /* Set the enable bit of DSB control register to 1 */ >> + val |= TPDM_DSB_CR_ENA; >> + writel_relaxed(val, drvdata->base + TPDM_DSB_CR); >> + } >> } >> /* >> @@ -278,8 +274,7 @@ static void __tpdm_enable(struct tpdm_drvdata >> *drvdata) >> { >> CS_UNLOCK(drvdata->base); >> - if (tpdm_has_dsb_dataset(drvdata)) >> - tpdm_enable_dsb(drvdata); >> + tpdm_enable_dsb(drvdata); >> CS_LOCK(drvdata->base); >> } >> @@ -307,10 +302,12 @@ static void tpdm_disable_dsb(struct >> tpdm_drvdata *drvdata) >> { >> u32 val; >> - /* Set the enable bit of DSB control register to 0 */ >> - val = readl_relaxed(drvdata->base + TPDM_DSB_CR); >> - val &= ~TPDM_DSB_CR_ENA; >> - writel_relaxed(val, drvdata->base + TPDM_DSB_CR); >> + if (tpdm_has_dsb_dataset(drvdata)) { >> + /* Set the enable bit of DSB control register to 0 */ >> + val = readl_relaxed(drvdata->base + TPDM_DSB_CR); >> + val &= ~TPDM_DSB_CR_ENA; >> + writel_relaxed(val, drvdata->base + TPDM_DSB_CR); >> + } > > Same suggestion as above: > > if (!tpdm_has...) > return; > Sure，I will update in the next patch series. Best, Tao > >> } >> /* TPDM disable operations */ >> @@ -318,8 +315,7 @@ static void __tpdm_disable(struct tpdm_drvdata >> *drvdata) >> { >> CS_UNLOCK(drvdata->base); >> - if (tpdm_has_dsb_dataset(drvdata)) >> - tpdm_disable_dsb(drvdata); >> + tpdm_disable_dsb(drvdata); >> CS_LOCK(drvdata->base); >> } >> diff --git a/drivers/hwtracing/coresight/coresight-tpdm.h >> b/drivers/hwtracing/coresight/coresight-tpdm.h >> index 4115b2a17b8d..ddaf333fa1c2 100644 >> --- a/drivers/hwtracing/coresight/coresight-tpdm.h >> +++ b/drivers/hwtracing/coresight/coresight-tpdm.h >> @@ -220,4 +220,8 @@ struct tpdm_dataset_attribute { >> u32 idx; >> }; >> +static bool tpdm_has_dsb_dataset(struct tpdm_drvdata *drvdata) >> +{ >> + return (drvdata->datasets & TPDM_PIDR0_DS_DSB); >> +} >> #endif /* _CORESIGHT_CORESIGHT_TPDM_H */ > > > Suzuki
diff --git a/drivers/hwtracing/coresight/coresight-tpdm.c b/drivers/hwtracing/coresight/coresight-tpdm.c index 0427c0fc0bf3..6549f71ba150 100644 --- a/drivers/hwtracing/coresight/coresight-tpdm.c +++ b/drivers/hwtracing/coresight/coresight-tpdm.c @@ -125,11 +125,6 @@ static ssize_t tpdm_simple_dataset_store(struct device *dev, return ret; } -static bool tpdm_has_dsb_dataset(struct tpdm_drvdata *drvdata) -{ - return (drvdata->datasets & TPDM_PIDR0_DS_DSB); -} - static umode_t tpdm_dsb_is_visible(struct kobject *kobj, struct attribute *attr, int n) { @@ -232,38 +227,39 @@ static void tpdm_enable_dsb(struct tpdm_drvdata *drvdata) { u32 val, i; - for (i = 0; i < TPDM_DSB_MAX_EDCR; i++) - writel_relaxed(drvdata->dsb->edge_ctrl[i], - drvdata->base + TPDM_DSB_EDCR(i)); - for (i = 0; i < TPDM_DSB_MAX_EDCMR; i++) - 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)); - } - - set_dsb_tier(drvdata); + if (tpdm_has_dsb_dataset(drvdata)) { + for (i = 0; i < TPDM_DSB_MAX_EDCR; i++) + writel_relaxed(drvdata->dsb->edge_ctrl[i], + drvdata->base + TPDM_DSB_EDCR(i)); + for (i = 0; i < TPDM_DSB_MAX_EDCMR; i++) + 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)); + } - set_dsb_msr(drvdata); + set_dsb_tier(drvdata); + set_dsb_msr(drvdata); - val = readl_relaxed(drvdata->base + TPDM_DSB_CR); - /* Set the mode of DSB dataset */ - set_dsb_mode(drvdata, &val); - /* Set trigger type */ - if (drvdata->dsb->trig_type) - val |= TPDM_DSB_CR_TRIG_TYPE; - else - val &= ~TPDM_DSB_CR_TRIG_TYPE; - /* Set the enable bit of DSB control register to 1 */ - val |= TPDM_DSB_CR_ENA; - writel_relaxed(val, drvdata->base + TPDM_DSB_CR); + val = readl_relaxed(drvdata->base + TPDM_DSB_CR); + /* Set the mode of DSB dataset */ + set_dsb_mode(drvdata, &val); + /* Set trigger type */ + if (drvdata->dsb->trig_type) + val |= TPDM_DSB_CR_TRIG_TYPE; + else + val &= ~TPDM_DSB_CR_TRIG_TYPE; + /* Set the enable bit of DSB control register to 1 */ + val |= TPDM_DSB_CR_ENA; + writel_relaxed(val, drvdata->base + TPDM_DSB_CR); + } } /* @@ -278,8 +274,7 @@ static void __tpdm_enable(struct tpdm_drvdata *drvdata) { CS_UNLOCK(drvdata->base); - if (tpdm_has_dsb_dataset(drvdata)) - tpdm_enable_dsb(drvdata); + tpdm_enable_dsb(drvdata); CS_LOCK(drvdata->base); } @@ -307,10 +302,12 @@ static void tpdm_disable_dsb(struct tpdm_drvdata *drvdata) { u32 val; - /* Set the enable bit of DSB control register to 0 */ - val = readl_relaxed(drvdata->base + TPDM_DSB_CR); - val &= ~TPDM_DSB_CR_ENA; - writel_relaxed(val, drvdata->base + TPDM_DSB_CR); + if (tpdm_has_dsb_dataset(drvdata)) { + /* Set the enable bit of DSB control register to 0 */ + val = readl_relaxed(drvdata->base + TPDM_DSB_CR); + val &= ~TPDM_DSB_CR_ENA; + writel_relaxed(val, drvdata->base + TPDM_DSB_CR); + } } /* TPDM disable operations */ @@ -318,8 +315,7 @@ static void __tpdm_disable(struct tpdm_drvdata *drvdata) { CS_UNLOCK(drvdata->base); - if (tpdm_has_dsb_dataset(drvdata)) - tpdm_disable_dsb(drvdata); + tpdm_disable_dsb(drvdata); CS_LOCK(drvdata->base); } diff --git a/drivers/hwtracing/coresight/coresight-tpdm.h b/drivers/hwtracing/coresight/coresight-tpdm.h index 4115b2a17b8d..ddaf333fa1c2 100644 --- a/drivers/hwtracing/coresight/coresight-tpdm.h +++ b/drivers/hwtracing/coresight/coresight-tpdm.h @@ -220,4 +220,8 @@ struct tpdm_dataset_attribute { u32 idx; }; +static bool tpdm_has_dsb_dataset(struct tpdm_drvdata *drvdata) +{ + return (drvdata->datasets & TPDM_PIDR0_DS_DSB); +} #endif /* _CORESIGHT_CORESIGHT_TPDM_H */
Since the function tpdm_has_dsb_dataset will be called by TPDA driver in subsequent patches, it is moved to the header file. And move this judgement form the function __tpdm_{enable/disable} to the beginning of the function tpdm_{enable/disable}_dsb. Signed-off-by: Tao Zhang <quic_taozha@quicinc.com> --- drivers/hwtracing/coresight/coresight-tpdm.c | 82 ++++++++++---------- drivers/hwtracing/coresight/coresight-tpdm.h | 4 + 2 files changed, 43 insertions(+), 43 deletions(-)