| Message ID | 20220720192807.130098-7-krzysztof.kozlowski@linaro.org |
|---|---|
| State | Superseded |
| Headers | show |
| Series | soc/arm64: qcom: Add LLCC BWMON on SDM845 | expand |
On 7/21/22 12:58 AM, Krzysztof Kozlowski wrote: > Versions v4 and v5 of BWMON on SDM845 use different unit count, so allow > easier variant customization by storing its value in struct > icc_bwmon_data. > > Cc: Rajendra Nayak <quic_rjendra@quicinc.com> > Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Reviewed-by: Sibi Sankar <quic_sibis@quicinc.com> > --- > drivers/soc/qcom/icc-bwmon.c | 15 ++++++++------- > 1 file changed, 8 insertions(+), 7 deletions(-) > > diff --git a/drivers/soc/qcom/icc-bwmon.c b/drivers/soc/qcom/icc-bwmon.c > index dcd445af6488..9a99e0fd1140 100644 > --- a/drivers/soc/qcom/icc-bwmon.c > +++ b/drivers/soc/qcom/icc-bwmon.c > @@ -104,12 +104,11 @@ > #define BWMON_THRESHOLD_COUNT_ZONE0_DEFAULT 0xff > #define BWMON_THRESHOLD_COUNT_ZONE2_DEFAULT 0xff > > -/* BWMONv4 count registers use count unit of 64 kB */ > -#define BWMON_COUNT_UNIT_KB 64 > #define BWMON_ZONE_MAX(zone) (0x2e0 + 4 * (zone)) > > struct icc_bwmon_data { > unsigned int sample_ms; > + unsigned int count_unit_kb; /* kbytes */ > unsigned int default_highbw_kbps; > unsigned int default_medbw_kbps; > unsigned int default_lowbw_kbps; > @@ -193,9 +192,10 @@ static void bwmon_enable(struct icc_bwmon *bwmon, unsigned int irq_enable) > writel(BWMON_ENABLE_ENABLE, bwmon->base + BWMON_ENABLE); > } > > -static unsigned int bwmon_kbps_to_count(unsigned int kbps) > +static unsigned int bwmon_kbps_to_count(struct icc_bwmon *bwmon, > + unsigned int kbps) > { > - return kbps / BWMON_COUNT_UNIT_KB; > + return kbps / bwmon->data->count_unit_kb; > } > > static void bwmon_set_threshold(struct icc_bwmon *bwmon, unsigned int reg, > @@ -203,8 +203,8 @@ static void bwmon_set_threshold(struct icc_bwmon *bwmon, unsigned int reg, > { > unsigned int thres; > > - thres = mult_frac(bwmon_kbps_to_count(kbps), bwmon->data->sample_ms, > - MSEC_PER_SEC); > + thres = mult_frac(bwmon_kbps_to_count(bwmon, kbps), > + bwmon->data->sample_ms, MSEC_PER_SEC); > writel_relaxed(thres, bwmon->base + reg); > } > > @@ -270,7 +270,7 @@ static irqreturn_t bwmon_intr(int irq, void *dev_id) > * downstream) always increments the max bytes count by one. > */ > max = readl(bwmon->base + BWMON_ZONE_MAX(zone)) + 1; > - max *= BWMON_COUNT_UNIT_KB; > + max *= bwmon->data->count_unit_kb; > bwmon->target_kbps = mult_frac(max, MSEC_PER_SEC, bwmon->data->sample_ms); > > return IRQ_WAKE_THREAD; > @@ -394,6 +394,7 @@ static int bwmon_remove(struct platform_device *pdev) > /* BWMON v4 */ > static const struct icc_bwmon_data msm8998_bwmon_data = { > .sample_ms = 4, > + .count_unit_kb = 64, > .default_highbw_kbps = 4800 * 1024, /* 4.8 GBps */ > .default_medbw_kbps = 512 * 1024, /* 512 MBps */ > .default_lowbw_kbps = 0, >
diff --git a/drivers/soc/qcom/icc-bwmon.c b/drivers/soc/qcom/icc-bwmon.c index dcd445af6488..9a99e0fd1140 100644 --- a/drivers/soc/qcom/icc-bwmon.c +++ b/drivers/soc/qcom/icc-bwmon.c @@ -104,12 +104,11 @@ #define BWMON_THRESHOLD_COUNT_ZONE0_DEFAULT 0xff #define BWMON_THRESHOLD_COUNT_ZONE2_DEFAULT 0xff -/* BWMONv4 count registers use count unit of 64 kB */ -#define BWMON_COUNT_UNIT_KB 64 #define BWMON_ZONE_MAX(zone) (0x2e0 + 4 * (zone)) struct icc_bwmon_data { unsigned int sample_ms; + unsigned int count_unit_kb; /* kbytes */ unsigned int default_highbw_kbps; unsigned int default_medbw_kbps; unsigned int default_lowbw_kbps; @@ -193,9 +192,10 @@ static void bwmon_enable(struct icc_bwmon *bwmon, unsigned int irq_enable) writel(BWMON_ENABLE_ENABLE, bwmon->base + BWMON_ENABLE); } -static unsigned int bwmon_kbps_to_count(unsigned int kbps) +static unsigned int bwmon_kbps_to_count(struct icc_bwmon *bwmon, + unsigned int kbps) { - return kbps / BWMON_COUNT_UNIT_KB; + return kbps / bwmon->data->count_unit_kb; } static void bwmon_set_threshold(struct icc_bwmon *bwmon, unsigned int reg, @@ -203,8 +203,8 @@ static void bwmon_set_threshold(struct icc_bwmon *bwmon, unsigned int reg, { unsigned int thres; - thres = mult_frac(bwmon_kbps_to_count(kbps), bwmon->data->sample_ms, - MSEC_PER_SEC); + thres = mult_frac(bwmon_kbps_to_count(bwmon, kbps), + bwmon->data->sample_ms, MSEC_PER_SEC); writel_relaxed(thres, bwmon->base + reg); } @@ -270,7 +270,7 @@ static irqreturn_t bwmon_intr(int irq, void *dev_id) * downstream) always increments the max bytes count by one. */ max = readl(bwmon->base + BWMON_ZONE_MAX(zone)) + 1; - max *= BWMON_COUNT_UNIT_KB; + max *= bwmon->data->count_unit_kb; bwmon->target_kbps = mult_frac(max, MSEC_PER_SEC, bwmon->data->sample_ms); return IRQ_WAKE_THREAD; @@ -394,6 +394,7 @@ static int bwmon_remove(struct platform_device *pdev) /* BWMON v4 */ static const struct icc_bwmon_data msm8998_bwmon_data = { .sample_ms = 4, + .count_unit_kb = 64, .default_highbw_kbps = 4800 * 1024, /* 4.8 GBps */ .default_medbw_kbps = 512 * 1024, /* 512 MBps */ .default_lowbw_kbps = 0,
Versions v4 and v5 of BWMON on SDM845 use different unit count, so allow easier variant customization by storing its value in struct icc_bwmon_data. Cc: Rajendra Nayak <quic_rjendra@quicinc.com> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> --- drivers/soc/qcom/icc-bwmon.c | 15 ++++++++------- 1 file changed, 8 insertions(+), 7 deletions(-)