| Message ID | 1618556290-28303-3-git-send-email-okukatla@codeaurora.org |
|---|---|
| State | New |
| Headers | show |
| Series | [1/3] dt-bindings: interconnect: Add EPSS L3 DT binding on SC7280 | expand |
Hi Odelu, On 16.04.21 9:58, Odelu Kukatla wrote: > Add Epoch Subsystem (EPSS) L3 interconnect provider support on > SC7280 SoCs. > > Signed-off-by: Odelu Kukatla <okukatla@codeaurora.org> > --- > drivers/interconnect/qcom/osm-l3.c | 124 +++++++++++++++++++------ > drivers/interconnect/qcom/sc7280.h | 10 ++ > include/dt-bindings/interconnect/qcom,osm-l3.h | 10 +- > 3 files changed, 114 insertions(+), 30 deletions(-) > > diff --git a/drivers/interconnect/qcom/osm-l3.c b/drivers/interconnect/qcom/osm-l3.c > index 695f287..3403e09 100644 > --- a/drivers/interconnect/qcom/osm-l3.c > +++ b/drivers/interconnect/qcom/osm-l3.c > @@ -15,6 +15,7 @@ > #include <dt-bindings/interconnect/qcom,osm-l3.h> > > #include "sc7180.h" > +#include "sc7280.h" > #include "sdm845.h" > #include "sm8150.h" > #include "sm8250.h" > @@ -32,17 +33,24 @@ > > /* EPSS Register offsets */ > #define EPSS_LUT_ROW_SIZE 4 > +#define EPSS_REG_L3_VOTE 0x90 > #define EPSS_REG_FREQ_LUT 0x100 > #define EPSS_REG_PERF_STATE 0x320 > +#define EPSS_CORE_OFFSET 0x4 > +#define EPSS_L3_VOTE_REG(base, cpu)\ > + ((base + EPSS_REG_L3_VOTE) +\ > + (cpu * EPSS_CORE_OFFSET)) Nit: Please add parenthesis around "base" and "cpu" to avoid any potential precedence issues. > > -#define OSM_L3_MAX_LINKS 1 > +#define L3_DOMAIN_CNT 4 > +#define L3_MAX_LINKS 9 > > #define to_qcom_provider(_provider) \ > container_of(_provider, struct qcom_osm_l3_icc_provider, provider) > > struct qcom_osm_l3_icc_provider { > - void __iomem *base; > + void __iomem *domain_base[L3_DOMAIN_CNT]; > unsigned int max_state; > + bool per_core_dcvs; > unsigned int reg_perf_state; > unsigned long lut_tables[LUT_MAX_ENTRIES]; > struct icc_provider provider; > @@ -58,31 +66,36 @@ struct qcom_osm_l3_icc_provider { > */ > struct qcom_icc_node { > const char *name; > - u16 links[OSM_L3_MAX_LINKS]; > + u16 links[L3_MAX_LINKS]; > u16 id; > u16 num_links; > u16 buswidth; > + u16 domain; > + int cpu; Please describe these in the kerneldoc. Adding a kerneldoc for qcom_osm_l3_icc_provider would be also nice. > }; > > struct qcom_icc_desc { > const struct qcom_icc_node **nodes; > size_t num_nodes; > + bool per_core_dcvs; > unsigned int lut_row_size; > unsigned int reg_freq_lut; > unsigned int reg_perf_state; > }; > > -#define DEFINE_QNODE(_name, _id, _buswidth, ...) \ > - static const struct qcom_icc_node _name = { \ > - .name = #_name, \ > - .id = _id, \ > - .buswidth = _buswidth, \ > - .num_links = ARRAY_SIZE(((int[]){ __VA_ARGS__ })), \ > - .links = { __VA_ARGS__ }, \ > +#define DEFINE_QNODE(_name, _id, _buswidth, _domain, _cpu, ...) \ > + static const struct qcom_icc_node _name = { \ > + .name = #_name, \ > + .id = _id, \ > + .buswidth = _buswidth, \ > + .domain = _domain, \ > + .cpu = _cpu, \ > + .num_links = ARRAY_SIZE(((int[]){ __VA_ARGS__ })), \ > + .links = { __VA_ARGS__ }, \ > } > > -DEFINE_QNODE(sdm845_osm_apps_l3, SDM845_MASTER_OSM_L3_APPS, 16, SDM845_SLAVE_OSM_L3); > -DEFINE_QNODE(sdm845_osm_l3, SDM845_SLAVE_OSM_L3, 16); > +DEFINE_QNODE(sdm845_osm_apps_l3, SDM845_MASTER_OSM_L3_APPS, 16, 0, 0, SDM845_SLAVE_OSM_L3); > +DEFINE_QNODE(sdm845_osm_l3, SDM845_SLAVE_OSM_L3, 16, 0, 0); > > static const struct qcom_icc_node *sdm845_osm_l3_nodes[] = { > [MASTER_OSM_L3_APPS] = &sdm845_osm_apps_l3, > @@ -97,8 +110,8 @@ static const struct qcom_icc_desc sdm845_icc_osm_l3 = { > .reg_perf_state = OSM_REG_PERF_STATE, > }; > > -DEFINE_QNODE(sc7180_osm_apps_l3, SC7180_MASTER_OSM_L3_APPS, 16, SC7180_SLAVE_OSM_L3); > -DEFINE_QNODE(sc7180_osm_l3, SC7180_SLAVE_OSM_L3, 16); > +DEFINE_QNODE(sc7180_osm_apps_l3, SC7180_MASTER_OSM_L3_APPS, 16, 0, 0, SC7180_SLAVE_OSM_L3); > +DEFINE_QNODE(sc7180_osm_l3, SC7180_SLAVE_OSM_L3, 16, 0, 0); > > static const struct qcom_icc_node *sc7180_osm_l3_nodes[] = { > [MASTER_OSM_L3_APPS] = &sc7180_osm_apps_l3, > @@ -113,8 +126,8 @@ static const struct qcom_icc_desc sc7180_icc_osm_l3 = { > .reg_perf_state = OSM_REG_PERF_STATE, > }; > > -DEFINE_QNODE(sm8150_osm_apps_l3, SM8150_MASTER_OSM_L3_APPS, 32, SM8150_SLAVE_OSM_L3); > -DEFINE_QNODE(sm8150_osm_l3, SM8150_SLAVE_OSM_L3, 32); > +DEFINE_QNODE(sm8150_osm_apps_l3, SM8150_MASTER_OSM_L3_APPS, 32, 0, 0, SM8150_SLAVE_OSM_L3); > +DEFINE_QNODE(sm8150_osm_l3, SM8150_SLAVE_OSM_L3, 32, 0, 0); > > static const struct qcom_icc_node *sm8150_osm_l3_nodes[] = { > [MASTER_OSM_L3_APPS] = &sm8150_osm_apps_l3, > @@ -129,8 +142,8 @@ static const struct qcom_icc_desc sm8150_icc_osm_l3 = { > .reg_perf_state = OSM_REG_PERF_STATE, > }; > > -DEFINE_QNODE(sm8250_epss_apps_l3, SM8250_MASTER_EPSS_L3_APPS, 32, SM8250_SLAVE_EPSS_L3); > -DEFINE_QNODE(sm8250_epss_l3, SM8250_SLAVE_EPSS_L3, 32); > +DEFINE_QNODE(sm8250_epss_apps_l3, SM8250_MASTER_EPSS_L3_APPS, 32, 0, 0, SM8250_SLAVE_EPSS_L3); > +DEFINE_QNODE(sm8250_epss_l3, SM8250_SLAVE_EPSS_L3, 32, 0, 0); > > static const struct qcom_icc_node *sm8250_epss_l3_nodes[] = { > [MASTER_EPSS_L3_APPS] = &sm8250_epss_apps_l3, > @@ -145,6 +158,39 @@ static const struct qcom_icc_desc sm8250_icc_epss_l3 = { > .reg_perf_state = EPSS_REG_PERF_STATE, > }; > > +DEFINE_QNODE(sc7280_epss_apps_l3, SC7280_MASTER_EPSS_L3_APPS, 32, 0, 0, SC7280_SLAVE_EPSS_L3_SHARED, SC7280_SLAVE_EPSS_L3_CPU0, SC7280_SLAVE_EPSS_L3_CPU1, SC7280_SLAVE_EPSS_L3_CPU2, SC7280_SLAVE_EPSS_L3_CPU3, SC7280_SLAVE_EPSS_L3_CPU4, SC7280_SLAVE_EPSS_L3_CPU5, SC7280_SLAVE_EPSS_L3_CPU6, SC7280_SLAVE_EPSS_L3_CPU7); > +DEFINE_QNODE(sc7280_epss_l3_shared, SC7280_SLAVE_EPSS_L3_SHARED, 32, 0, 0); > +DEFINE_QNODE(sc7280_epss_l3_cpu0, SC7280_SLAVE_EPSS_L3_CPU0, 32, 1, 0); > +DEFINE_QNODE(sc7280_epss_l3_cpu1, SC7280_SLAVE_EPSS_L3_CPU1, 32, 1, 1); > +DEFINE_QNODE(sc7280_epss_l3_cpu2, SC7280_SLAVE_EPSS_L3_CPU2, 32, 1, 2); > +DEFINE_QNODE(sc7280_epss_l3_cpu3, SC7280_SLAVE_EPSS_L3_CPU3, 32, 1, 3); > +DEFINE_QNODE(sc7280_epss_l3_cpu4, SC7280_SLAVE_EPSS_L3_CPU4, 32, 2, 0); > +DEFINE_QNODE(sc7280_epss_l3_cpu5, SC7280_SLAVE_EPSS_L3_CPU5, 32, 2, 1); > +DEFINE_QNODE(sc7280_epss_l3_cpu6, SC7280_SLAVE_EPSS_L3_CPU6, 32, 2, 2); > +DEFINE_QNODE(sc7280_epss_l3_cpu7, SC7280_SLAVE_EPSS_L3_CPU7, 32, 3, 0); > + > +static const struct qcom_icc_node *sc7280_epss_l3_nodes[] = { > + [MASTER_EPSS_L3_APPS] = &sc7280_epss_apps_l3, > + [SLAVE_EPSS_L3_SHARED] = &sc7280_epss_l3_shared, > + [SLAVE_EPSS_L3_CPU0] = &sc7280_epss_l3_cpu0, > + [SLAVE_EPSS_L3_CPU1] = &sc7280_epss_l3_cpu1, > + [SLAVE_EPSS_L3_CPU2] = &sc7280_epss_l3_cpu2, > + [SLAVE_EPSS_L3_CPU3] = &sc7280_epss_l3_cpu3, > + [SLAVE_EPSS_L3_CPU4] = &sc7280_epss_l3_cpu4, > + [SLAVE_EPSS_L3_CPU5] = &sc7280_epss_l3_cpu5, > + [SLAVE_EPSS_L3_CPU6] = &sc7280_epss_l3_cpu6, > + [SLAVE_EPSS_L3_CPU7] = &sc7280_epss_l3_cpu7, > +}; > + > +static const struct qcom_icc_desc sc7280_icc_epss_l3 = { > + .nodes = sc7280_epss_l3_nodes, > + .num_nodes = ARRAY_SIZE(sc7280_epss_l3_nodes), > + .per_core_dcvs = true, > + .lut_row_size = EPSS_LUT_ROW_SIZE, > + .reg_freq_lut = EPSS_REG_FREQ_LUT, > + .reg_perf_state = EPSS_REG_PERF_STATE, > +}; > + > static int qcom_icc_set(struct icc_node *src, struct icc_node *dst) > { > struct qcom_osm_l3_icc_provider *qp; > @@ -156,13 +202,18 @@ static int qcom_icc_set(struct icc_node *src, struct icc_node *dst) > u32 agg_avg = 0; > u64 rate; > > - qn = src->data; > + qn = dst->data; > provider = src->provider; dst->provider? To keep it symmetric maybe? I am expecting that src and dst are the same provider? > qp = to_qcom_provider(provider); > > - list_for_each_entry(n, &provider->nodes, node_list) > - provider->aggregate(n, 0, n->avg_bw, n->peak_bw, > - &agg_avg, &agg_peak); > + /* Skip aggregation when per core l3 scaling is enabled */ > + if (qp->per_core_dcvs) { > + agg_peak = dst->peak_bw; > + } else { > + list_for_each_entry(n, &provider->nodes, node_list) > + provider->aggregate(n, 0, n->avg_bw, n->peak_bw, > + &agg_avg, &agg_peak); > + } > > rate = max(agg_avg, agg_peak); > rate = icc_units_to_bps(rate); > @@ -173,7 +224,10 @@ static int qcom_icc_set(struct icc_node *src, struct icc_node *dst) > break; > } > > - writel_relaxed(index, qp->base + qp->reg_perf_state); > + if (qp->per_core_dcvs) > + writel_relaxed(index, EPSS_L3_VOTE_REG(qp->domain_base[qn->domain], qn->cpu)); > + else > + writel_relaxed(index, qp->domain_base[qn->domain] + qp->reg_perf_state); > > return 0; > } > @@ -194,11 +248,12 @@ static int qcom_osm_l3_probe(struct platform_device *pdev) > const struct qcom_icc_desc *desc; > struct icc_onecell_data *data; > struct icc_provider *provider; > + struct property *prop; > const struct qcom_icc_node **qnodes; > struct icc_node *node; > size_t num_nodes; > struct clk *clk; > - int ret; > + int ret, index, domain_count; > > clk = clk_get(&pdev->dev, "xo"); > if (IS_ERR(clk)) > @@ -218,12 +273,21 @@ static int qcom_osm_l3_probe(struct platform_device *pdev) > if (!qp) > return -ENOMEM; > > - qp->base = devm_platform_ioremap_resource(pdev, 0); > - if (IS_ERR(qp->base)) > - return PTR_ERR(qp->base); > + prop = of_find_property(pdev->dev.of_node, "reg", NULL); > + if (!prop) > + return -EINVAL; > + domain_count = prop->length / (4 * sizeof(prop->length)); > + if(!domain_count) Please add a space before opening the parenthesis. > + return -EINVAL; > + > + for (index = 0; index < domain_count ; index++) { > + qp->domain_base[index] = devm_platform_ioremap_resource(pdev, index); > + if (IS_ERR(qp->domain_base[index])) > + return PTR_ERR(qp->domain_base[index]); > + } > > /* HW should be in enabled state to proceed */ > - if (!(readl_relaxed(qp->base + REG_ENABLE) & 0x1)) { > + if (!(readl_relaxed(qp->domain_base[0] + REG_ENABLE) & 0x1)) { > dev_err(&pdev->dev, "error hardware not enabled\n"); > return -ENODEV; > } > @@ -235,7 +299,7 @@ static int qcom_osm_l3_probe(struct platform_device *pdev) > qp->reg_perf_state = desc->reg_perf_state; > > for (i = 0; i < LUT_MAX_ENTRIES; i++) { > - info = readl_relaxed(qp->base + desc->reg_freq_lut + > + info = readl_relaxed(qp->domain_base[0] + desc->reg_freq_lut + > i * desc->lut_row_size); > src = FIELD_GET(LUT_SRC, info); > lval = FIELD_GET(LUT_L_VAL, info); > @@ -254,6 +318,7 @@ static int qcom_osm_l3_probe(struct platform_device *pdev) > prev_freq = freq; > } > qp->max_state = i; > + qp->per_core_dcvs = desc->per_core_dcvs; > > qnodes = desc->nodes; > num_nodes = desc->num_nodes; > @@ -309,6 +374,7 @@ static int qcom_osm_l3_probe(struct platform_device *pdev) > > static const struct of_device_id osm_l3_of_match[] = { > { .compatible = "qcom,sc7180-osm-l3", .data = &sc7180_icc_osm_l3 }, > + { .compatible = "qcom,sc7280-epss-l3", .data = &sc7280_icc_epss_l3 }, > { .compatible = "qcom,sdm845-osm-l3", .data = &sdm845_icc_osm_l3 }, > { .compatible = "qcom,sm8150-osm-l3", .data = &sm8150_icc_osm_l3 }, > { .compatible = "qcom,sm8250-epss-l3", .data = &sm8250_icc_epss_l3 }, > diff --git a/drivers/interconnect/qcom/sc7280.h b/drivers/interconnect/qcom/sc7280.h > index 66ac6ee..6d323ba 100644 > --- a/drivers/interconnect/qcom/sc7280.h > +++ b/drivers/interconnect/qcom/sc7280.h > @@ -148,5 +148,15 @@ > #define SC7280_SLAVE_PCIE_1 137 > #define SC7280_SLAVE_QDSS_STM 138 > #define SC7280_SLAVE_TCU 139 > +#define SC7280_MASTER_EPSS_L3_APPS 140 > +#define SC7280_SLAVE_EPSS_L3_SHARED 141 > +#define SC7280_SLAVE_EPSS_L3_CPU0 142 > +#define SC7280_SLAVE_EPSS_L3_CPU1 143 > +#define SC7280_SLAVE_EPSS_L3_CPU2 144 > +#define SC7280_SLAVE_EPSS_L3_CPU3 145 > +#define SC7280_SLAVE_EPSS_L3_CPU4 146 > +#define SC7280_SLAVE_EPSS_L3_CPU5 147 > +#define SC7280_SLAVE_EPSS_L3_CPU6 148 > +#define SC7280_SLAVE_EPSS_L3_CPU7 149 > > #endif > diff --git a/include/dt-bindings/interconnect/qcom,osm-l3.h b/include/dt-bindings/interconnect/qcom,osm-l3.h > index 61ef649..99534a5 100644 > --- a/include/dt-bindings/interconnect/qcom,osm-l3.h > +++ b/include/dt-bindings/interconnect/qcom,osm-l3.h > @@ -1,6 +1,6 @@ > /* SPDX-License-Identifier: GPL-2.0 */ > /* > - * Copyright (C) 2019 The Linux Foundation. All rights reserved. > + * Copyright (C) 2019, 2021 The Linux Foundation. All rights reserved. > */ > > #ifndef __DT_BINDINGS_INTERCONNECT_QCOM_OSM_L3_H > @@ -11,5 +11,13 @@ > > #define MASTER_EPSS_L3_APPS 0 > #define SLAVE_EPSS_L3_SHARED 1 > +#define SLAVE_EPSS_L3_CPU0 2 > +#define SLAVE_EPSS_L3_CPU1 3 > +#define SLAVE_EPSS_L3_CPU2 4 > +#define SLAVE_EPSS_L3_CPU3 5 > +#define SLAVE_EPSS_L3_CPU4 6 > +#define SLAVE_EPSS_L3_CPU5 7 > +#define SLAVE_EPSS_L3_CPU6 8 > +#define SLAVE_EPSS_L3_CPU7 9 This hunk should be part of the dt-bindings patch. Thanks, Georgi
On 2021-04-20 13:41, Georgi Djakov wrote: > Hi Odelu, > > On 16.04.21 9:58, Odelu Kukatla wrote: >> Add Epoch Subsystem (EPSS) L3 interconnect provider support on >> SC7280 SoCs. >> >> Signed-off-by: Odelu Kukatla <okukatla@codeaurora.org> >> --- >> drivers/interconnect/qcom/osm-l3.c | 124 >> +++++++++++++++++++------ >> drivers/interconnect/qcom/sc7280.h | 10 ++ >> include/dt-bindings/interconnect/qcom,osm-l3.h | 10 +- >> 3 files changed, 114 insertions(+), 30 deletions(-) >> >> diff --git a/drivers/interconnect/qcom/osm-l3.c >> b/drivers/interconnect/qcom/osm-l3.c >> index 695f287..3403e09 100644 >> --- a/drivers/interconnect/qcom/osm-l3.c >> +++ b/drivers/interconnect/qcom/osm-l3.c >> @@ -15,6 +15,7 @@ >> #include <dt-bindings/interconnect/qcom,osm-l3.h> >> #include "sc7180.h" >> +#include "sc7280.h" >> #include "sdm845.h" >> #include "sm8150.h" >> #include "sm8250.h" >> @@ -32,17 +33,24 @@ >> /* EPSS Register offsets */ >> #define EPSS_LUT_ROW_SIZE 4 >> +#define EPSS_REG_L3_VOTE 0x90 >> #define EPSS_REG_FREQ_LUT 0x100 >> #define EPSS_REG_PERF_STATE 0x320 >> +#define EPSS_CORE_OFFSET 0x4 >> +#define EPSS_L3_VOTE_REG(base, cpu)\ >> + ((base + EPSS_REG_L3_VOTE) +\ >> + (cpu * EPSS_CORE_OFFSET)) > > Nit: Please add parenthesis around "base" and "cpu" to avoid > any potential precedence issues. > Done! will address this in next revision. >> -#define OSM_L3_MAX_LINKS 1 >> +#define L3_DOMAIN_CNT 4 >> +#define L3_MAX_LINKS 9 >> #define to_qcom_provider(_provider) \ >> container_of(_provider, struct qcom_osm_l3_icc_provider, provider) >> struct qcom_osm_l3_icc_provider { >> - void __iomem *base; >> + void __iomem *domain_base[L3_DOMAIN_CNT]; >> unsigned int max_state; >> + bool per_core_dcvs; >> unsigned int reg_perf_state; >> unsigned long lut_tables[LUT_MAX_ENTRIES]; >> struct icc_provider provider; >> @@ -58,31 +66,36 @@ struct qcom_osm_l3_icc_provider { >> */ >> struct qcom_icc_node { >> const char *name; >> - u16 links[OSM_L3_MAX_LINKS]; >> + u16 links[L3_MAX_LINKS]; >> u16 id; >> u16 num_links; >> u16 buswidth; >> + u16 domain; >> + int cpu; > > Please describe these in the kerneldoc. Adding a kerneldoc for > qcom_osm_l3_icc_provider would be also nice. > Done! will address this in next revision. >> }; >> struct qcom_icc_desc { >> const struct qcom_icc_node **nodes; >> size_t num_nodes; >> + bool per_core_dcvs; >> unsigned int lut_row_size; >> unsigned int reg_freq_lut; >> unsigned int reg_perf_state; >> }; >> -#define DEFINE_QNODE(_name, _id, _buswidth, ...) \ >> - static const struct qcom_icc_node _name = { \ >> - .name = #_name, \ >> - .id = _id, \ >> - .buswidth = _buswidth, \ >> - .num_links = ARRAY_SIZE(((int[]){ __VA_ARGS__ })), \ >> - .links = { __VA_ARGS__ }, \ >> +#define DEFINE_QNODE(_name, _id, _buswidth, _domain, _cpu, ...) \ >> + static const struct qcom_icc_node _name = { \ >> + .name = #_name, \ >> + .id = _id, \ >> + .buswidth = _buswidth, \ >> + .domain = _domain, \ >> + .cpu = _cpu, \ >> + .num_links = ARRAY_SIZE(((int[]){ __VA_ARGS__ })), \ >> + .links = { __VA_ARGS__ }, \ >> } >> -DEFINE_QNODE(sdm845_osm_apps_l3, SDM845_MASTER_OSM_L3_APPS, 16, >> SDM845_SLAVE_OSM_L3); >> -DEFINE_QNODE(sdm845_osm_l3, SDM845_SLAVE_OSM_L3, 16); >> +DEFINE_QNODE(sdm845_osm_apps_l3, SDM845_MASTER_OSM_L3_APPS, 16, 0, 0, >> SDM845_SLAVE_OSM_L3); >> +DEFINE_QNODE(sdm845_osm_l3, SDM845_SLAVE_OSM_L3, 16, 0, 0); >> static const struct qcom_icc_node *sdm845_osm_l3_nodes[] = { >> [MASTER_OSM_L3_APPS] = &sdm845_osm_apps_l3, >> @@ -97,8 +110,8 @@ static const struct qcom_icc_desc sdm845_icc_osm_l3 >> = { >> .reg_perf_state = OSM_REG_PERF_STATE, >> }; >> -DEFINE_QNODE(sc7180_osm_apps_l3, SC7180_MASTER_OSM_L3_APPS, 16, >> SC7180_SLAVE_OSM_L3); >> -DEFINE_QNODE(sc7180_osm_l3, SC7180_SLAVE_OSM_L3, 16); >> +DEFINE_QNODE(sc7180_osm_apps_l3, SC7180_MASTER_OSM_L3_APPS, 16, 0, 0, >> SC7180_SLAVE_OSM_L3); >> +DEFINE_QNODE(sc7180_osm_l3, SC7180_SLAVE_OSM_L3, 16, 0, 0); >> static const struct qcom_icc_node *sc7180_osm_l3_nodes[] = { >> [MASTER_OSM_L3_APPS] = &sc7180_osm_apps_l3, >> @@ -113,8 +126,8 @@ static const struct qcom_icc_desc >> sc7180_icc_osm_l3 = { >> .reg_perf_state = OSM_REG_PERF_STATE, >> }; >> -DEFINE_QNODE(sm8150_osm_apps_l3, SM8150_MASTER_OSM_L3_APPS, 32, >> SM8150_SLAVE_OSM_L3); >> -DEFINE_QNODE(sm8150_osm_l3, SM8150_SLAVE_OSM_L3, 32); >> +DEFINE_QNODE(sm8150_osm_apps_l3, SM8150_MASTER_OSM_L3_APPS, 32, 0, 0, >> SM8150_SLAVE_OSM_L3); >> +DEFINE_QNODE(sm8150_osm_l3, SM8150_SLAVE_OSM_L3, 32, 0, 0); >> static const struct qcom_icc_node *sm8150_osm_l3_nodes[] = { >> [MASTER_OSM_L3_APPS] = &sm8150_osm_apps_l3, >> @@ -129,8 +142,8 @@ static const struct qcom_icc_desc >> sm8150_icc_osm_l3 = { >> .reg_perf_state = OSM_REG_PERF_STATE, >> }; >> -DEFINE_QNODE(sm8250_epss_apps_l3, SM8250_MASTER_EPSS_L3_APPS, 32, >> SM8250_SLAVE_EPSS_L3); >> -DEFINE_QNODE(sm8250_epss_l3, SM8250_SLAVE_EPSS_L3, 32); >> +DEFINE_QNODE(sm8250_epss_apps_l3, SM8250_MASTER_EPSS_L3_APPS, 32, 0, >> 0, SM8250_SLAVE_EPSS_L3); >> +DEFINE_QNODE(sm8250_epss_l3, SM8250_SLAVE_EPSS_L3, 32, 0, 0); >> static const struct qcom_icc_node *sm8250_epss_l3_nodes[] = { >> [MASTER_EPSS_L3_APPS] = &sm8250_epss_apps_l3, >> @@ -145,6 +158,39 @@ static const struct qcom_icc_desc >> sm8250_icc_epss_l3 = { >> .reg_perf_state = EPSS_REG_PERF_STATE, >> }; >> +DEFINE_QNODE(sc7280_epss_apps_l3, SC7280_MASTER_EPSS_L3_APPS, 32, >> 0, 0, SC7280_SLAVE_EPSS_L3_SHARED, SC7280_SLAVE_EPSS_L3_CPU0, >> SC7280_SLAVE_EPSS_L3_CPU1, SC7280_SLAVE_EPSS_L3_CPU2, >> SC7280_SLAVE_EPSS_L3_CPU3, SC7280_SLAVE_EPSS_L3_CPU4, >> SC7280_SLAVE_EPSS_L3_CPU5, SC7280_SLAVE_EPSS_L3_CPU6, >> SC7280_SLAVE_EPSS_L3_CPU7); >> +DEFINE_QNODE(sc7280_epss_l3_shared, SC7280_SLAVE_EPSS_L3_SHARED, 32, >> 0, 0); >> +DEFINE_QNODE(sc7280_epss_l3_cpu0, SC7280_SLAVE_EPSS_L3_CPU0, 32, 1, >> 0); >> +DEFINE_QNODE(sc7280_epss_l3_cpu1, SC7280_SLAVE_EPSS_L3_CPU1, 32, 1, >> 1); >> +DEFINE_QNODE(sc7280_epss_l3_cpu2, SC7280_SLAVE_EPSS_L3_CPU2, 32, 1, >> 2); >> +DEFINE_QNODE(sc7280_epss_l3_cpu3, SC7280_SLAVE_EPSS_L3_CPU3, 32, 1, >> 3); >> +DEFINE_QNODE(sc7280_epss_l3_cpu4, SC7280_SLAVE_EPSS_L3_CPU4, 32, 2, >> 0); >> +DEFINE_QNODE(sc7280_epss_l3_cpu5, SC7280_SLAVE_EPSS_L3_CPU5, 32, 2, >> 1); >> +DEFINE_QNODE(sc7280_epss_l3_cpu6, SC7280_SLAVE_EPSS_L3_CPU6, 32, 2, >> 2); >> +DEFINE_QNODE(sc7280_epss_l3_cpu7, SC7280_SLAVE_EPSS_L3_CPU7, 32, 3, >> 0); >> + >> +static const struct qcom_icc_node *sc7280_epss_l3_nodes[] = { >> + [MASTER_EPSS_L3_APPS] = &sc7280_epss_apps_l3, >> + [SLAVE_EPSS_L3_SHARED] = &sc7280_epss_l3_shared, >> + [SLAVE_EPSS_L3_CPU0] = &sc7280_epss_l3_cpu0, >> + [SLAVE_EPSS_L3_CPU1] = &sc7280_epss_l3_cpu1, >> + [SLAVE_EPSS_L3_CPU2] = &sc7280_epss_l3_cpu2, >> + [SLAVE_EPSS_L3_CPU3] = &sc7280_epss_l3_cpu3, >> + [SLAVE_EPSS_L3_CPU4] = &sc7280_epss_l3_cpu4, >> + [SLAVE_EPSS_L3_CPU5] = &sc7280_epss_l3_cpu5, >> + [SLAVE_EPSS_L3_CPU6] = &sc7280_epss_l3_cpu6, >> + [SLAVE_EPSS_L3_CPU7] = &sc7280_epss_l3_cpu7, >> +}; >> + >> +static const struct qcom_icc_desc sc7280_icc_epss_l3 = { >> + .nodes = sc7280_epss_l3_nodes, >> + .num_nodes = ARRAY_SIZE(sc7280_epss_l3_nodes), >> + .per_core_dcvs = true, >> + .lut_row_size = EPSS_LUT_ROW_SIZE, >> + .reg_freq_lut = EPSS_REG_FREQ_LUT, >> + .reg_perf_state = EPSS_REG_PERF_STATE, >> +}; >> + >> static int qcom_icc_set(struct icc_node *src, struct icc_node *dst) >> { >> struct qcom_osm_l3_icc_provider *qp; >> @@ -156,13 +202,18 @@ static int qcom_icc_set(struct icc_node *src, >> struct icc_node *dst) >> u32 agg_avg = 0; >> u64 rate; >> - qn = src->data; >> + qn = dst->data; >> provider = src->provider; > > dst->provider? To keep it symmetric maybe? I am expecting that src > and dst are the same provider? > Yes, you are correct. >> qp = to_qcom_provider(provider); >> - list_for_each_entry(n, &provider->nodes, node_list) >> - provider->aggregate(n, 0, n->avg_bw, n->peak_bw, >> - &agg_avg, &agg_peak); >> + /* Skip aggregation when per core l3 scaling is enabled */ >> + if (qp->per_core_dcvs) { >> + agg_peak = dst->peak_bw; >> + } else { >> + list_for_each_entry(n, &provider->nodes, node_list) >> + provider->aggregate(n, 0, n->avg_bw, n->peak_bw, >> + &agg_avg, &agg_peak); >> + } >> rate = max(agg_avg, agg_peak); >> rate = icc_units_to_bps(rate); >> @@ -173,7 +224,10 @@ static int qcom_icc_set(struct icc_node *src, >> struct icc_node *dst) >> break; >> } >> - writel_relaxed(index, qp->base + qp->reg_perf_state); >> + if (qp->per_core_dcvs) >> + writel_relaxed(index, EPSS_L3_VOTE_REG(qp->domain_base[qn->domain], >> qn->cpu)); >> + else >> + writel_relaxed(index, qp->domain_base[qn->domain] + >> qp->reg_perf_state); >> return 0; >> } >> @@ -194,11 +248,12 @@ static int qcom_osm_l3_probe(struct >> platform_device *pdev) >> const struct qcom_icc_desc *desc; >> struct icc_onecell_data *data; >> struct icc_provider *provider; >> + struct property *prop; >> const struct qcom_icc_node **qnodes; >> struct icc_node *node; >> size_t num_nodes; >> struct clk *clk; >> - int ret; >> + int ret, index, domain_count; >> clk = clk_get(&pdev->dev, "xo"); >> if (IS_ERR(clk)) >> @@ -218,12 +273,21 @@ static int qcom_osm_l3_probe(struct >> platform_device *pdev) >> if (!qp) >> return -ENOMEM; >> - qp->base = devm_platform_ioremap_resource(pdev, 0); >> - if (IS_ERR(qp->base)) >> - return PTR_ERR(qp->base); >> + prop = of_find_property(pdev->dev.of_node, "reg", NULL); >> + if (!prop) >> + return -EINVAL; >> + domain_count = prop->length / (4 * sizeof(prop->length)); >> + if(!domain_count) > > Please add a space before opening the parenthesis. > >> + return -EINVAL; >> + >> + for (index = 0; index < domain_count ; index++) { >> + qp->domain_base[index] = devm_platform_ioremap_resource(pdev, >> index); >> + if (IS_ERR(qp->domain_base[index])) >> + return PTR_ERR(qp->domain_base[index]); >> + } >> /* HW should be in enabled state to proceed */ >> - if (!(readl_relaxed(qp->base + REG_ENABLE) & 0x1)) { >> + if (!(readl_relaxed(qp->domain_base[0] + REG_ENABLE) & 0x1)) { >> dev_err(&pdev->dev, "error hardware not enabled\n"); >> return -ENODEV; >> } >> @@ -235,7 +299,7 @@ static int qcom_osm_l3_probe(struct >> platform_device *pdev) >> qp->reg_perf_state = desc->reg_perf_state; >> for (i = 0; i < LUT_MAX_ENTRIES; i++) { >> - info = readl_relaxed(qp->base + desc->reg_freq_lut + >> + info = readl_relaxed(qp->domain_base[0] + desc->reg_freq_lut + >> i * desc->lut_row_size); >> src = FIELD_GET(LUT_SRC, info); >> lval = FIELD_GET(LUT_L_VAL, info); >> @@ -254,6 +318,7 @@ static int qcom_osm_l3_probe(struct >> platform_device *pdev) >> prev_freq = freq; >> } >> qp->max_state = i; >> + qp->per_core_dcvs = desc->per_core_dcvs; >> qnodes = desc->nodes; >> num_nodes = desc->num_nodes; >> @@ -309,6 +374,7 @@ static int qcom_osm_l3_probe(struct >> platform_device *pdev) >> static const struct of_device_id osm_l3_of_match[] = { >> { .compatible = "qcom,sc7180-osm-l3", .data = &sc7180_icc_osm_l3 }, >> + { .compatible = "qcom,sc7280-epss-l3", .data = &sc7280_icc_epss_l3 >> }, >> { .compatible = "qcom,sdm845-osm-l3", .data = &sdm845_icc_osm_l3 }, >> { .compatible = "qcom,sm8150-osm-l3", .data = &sm8150_icc_osm_l3 }, >> { .compatible = "qcom,sm8250-epss-l3", .data = &sm8250_icc_epss_l3 >> }, >> diff --git a/drivers/interconnect/qcom/sc7280.h >> b/drivers/interconnect/qcom/sc7280.h >> index 66ac6ee..6d323ba 100644 >> --- a/drivers/interconnect/qcom/sc7280.h >> +++ b/drivers/interconnect/qcom/sc7280.h >> @@ -148,5 +148,15 @@ >> #define SC7280_SLAVE_PCIE_1 137 >> #define SC7280_SLAVE_QDSS_STM 138 >> #define SC7280_SLAVE_TCU 139 >> +#define SC7280_MASTER_EPSS_L3_APPS 140 >> +#define SC7280_SLAVE_EPSS_L3_SHARED 141 >> +#define SC7280_SLAVE_EPSS_L3_CPU0 142 >> +#define SC7280_SLAVE_EPSS_L3_CPU1 143 >> +#define SC7280_SLAVE_EPSS_L3_CPU2 144 >> +#define SC7280_SLAVE_EPSS_L3_CPU3 145 >> +#define SC7280_SLAVE_EPSS_L3_CPU4 146 >> +#define SC7280_SLAVE_EPSS_L3_CPU5 147 >> +#define SC7280_SLAVE_EPSS_L3_CPU6 148 >> +#define SC7280_SLAVE_EPSS_L3_CPU7 149 >> #endif >> diff --git a/include/dt-bindings/interconnect/qcom,osm-l3.h >> b/include/dt-bindings/interconnect/qcom,osm-l3.h >> index 61ef649..99534a5 100644 >> --- a/include/dt-bindings/interconnect/qcom,osm-l3.h >> +++ b/include/dt-bindings/interconnect/qcom,osm-l3.h >> @@ -1,6 +1,6 @@ >> /* SPDX-License-Identifier: GPL-2.0 */ >> /* >> - * Copyright (C) 2019 The Linux Foundation. All rights reserved. >> + * Copyright (C) 2019, 2021 The Linux Foundation. All rights >> reserved. >> */ >> #ifndef __DT_BINDINGS_INTERCONNECT_QCOM_OSM_L3_H >> @@ -11,5 +11,13 @@ >> #define MASTER_EPSS_L3_APPS 0 >> #define SLAVE_EPSS_L3_SHARED 1 >> +#define SLAVE_EPSS_L3_CPU0 2 >> +#define SLAVE_EPSS_L3_CPU1 3 >> +#define SLAVE_EPSS_L3_CPU2 4 >> +#define SLAVE_EPSS_L3_CPU3 5 >> +#define SLAVE_EPSS_L3_CPU4 6 >> +#define SLAVE_EPSS_L3_CPU5 7 >> +#define SLAVE_EPSS_L3_CPU6 8 >> +#define SLAVE_EPSS_L3_CPU7 9 > > This hunk should be part of the dt-bindings patch. > Done! will address this in next revision. > Thanks, > Georgi
diff --git a/drivers/interconnect/qcom/osm-l3.c b/drivers/interconnect/qcom/osm-l3.c index 695f287..3403e09 100644 --- a/drivers/interconnect/qcom/osm-l3.c +++ b/drivers/interconnect/qcom/osm-l3.c @@ -15,6 +15,7 @@ #include <dt-bindings/interconnect/qcom,osm-l3.h> #include "sc7180.h" +#include "sc7280.h" #include "sdm845.h" #include "sm8150.h" #include "sm8250.h" @@ -32,17 +33,24 @@ /* EPSS Register offsets */ #define EPSS_LUT_ROW_SIZE 4 +#define EPSS_REG_L3_VOTE 0x90 #define EPSS_REG_FREQ_LUT 0x100 #define EPSS_REG_PERF_STATE 0x320 +#define EPSS_CORE_OFFSET 0x4 +#define EPSS_L3_VOTE_REG(base, cpu)\ + ((base + EPSS_REG_L3_VOTE) +\ + (cpu * EPSS_CORE_OFFSET)) -#define OSM_L3_MAX_LINKS 1 +#define L3_DOMAIN_CNT 4 +#define L3_MAX_LINKS 9 #define to_qcom_provider(_provider) \ container_of(_provider, struct qcom_osm_l3_icc_provider, provider) struct qcom_osm_l3_icc_provider { - void __iomem *base; + void __iomem *domain_base[L3_DOMAIN_CNT]; unsigned int max_state; + bool per_core_dcvs; unsigned int reg_perf_state; unsigned long lut_tables[LUT_MAX_ENTRIES]; struct icc_provider provider; @@ -58,31 +66,36 @@ struct qcom_osm_l3_icc_provider { */ struct qcom_icc_node { const char *name; - u16 links[OSM_L3_MAX_LINKS]; + u16 links[L3_MAX_LINKS]; u16 id; u16 num_links; u16 buswidth; + u16 domain; + int cpu; }; struct qcom_icc_desc { const struct qcom_icc_node **nodes; size_t num_nodes; + bool per_core_dcvs; unsigned int lut_row_size; unsigned int reg_freq_lut; unsigned int reg_perf_state; }; -#define DEFINE_QNODE(_name, _id, _buswidth, ...) \ - static const struct qcom_icc_node _name = { \ - .name = #_name, \ - .id = _id, \ - .buswidth = _buswidth, \ - .num_links = ARRAY_SIZE(((int[]){ __VA_ARGS__ })), \ - .links = { __VA_ARGS__ }, \ +#define DEFINE_QNODE(_name, _id, _buswidth, _domain, _cpu, ...) \ + static const struct qcom_icc_node _name = { \ + .name = #_name, \ + .id = _id, \ + .buswidth = _buswidth, \ + .domain = _domain, \ + .cpu = _cpu, \ + .num_links = ARRAY_SIZE(((int[]){ __VA_ARGS__ })), \ + .links = { __VA_ARGS__ }, \ } -DEFINE_QNODE(sdm845_osm_apps_l3, SDM845_MASTER_OSM_L3_APPS, 16, SDM845_SLAVE_OSM_L3); -DEFINE_QNODE(sdm845_osm_l3, SDM845_SLAVE_OSM_L3, 16); +DEFINE_QNODE(sdm845_osm_apps_l3, SDM845_MASTER_OSM_L3_APPS, 16, 0, 0, SDM845_SLAVE_OSM_L3); +DEFINE_QNODE(sdm845_osm_l3, SDM845_SLAVE_OSM_L3, 16, 0, 0); static const struct qcom_icc_node *sdm845_osm_l3_nodes[] = { [MASTER_OSM_L3_APPS] = &sdm845_osm_apps_l3, @@ -97,8 +110,8 @@ static const struct qcom_icc_desc sdm845_icc_osm_l3 = { .reg_perf_state = OSM_REG_PERF_STATE, }; -DEFINE_QNODE(sc7180_osm_apps_l3, SC7180_MASTER_OSM_L3_APPS, 16, SC7180_SLAVE_OSM_L3); -DEFINE_QNODE(sc7180_osm_l3, SC7180_SLAVE_OSM_L3, 16); +DEFINE_QNODE(sc7180_osm_apps_l3, SC7180_MASTER_OSM_L3_APPS, 16, 0, 0, SC7180_SLAVE_OSM_L3); +DEFINE_QNODE(sc7180_osm_l3, SC7180_SLAVE_OSM_L3, 16, 0, 0); static const struct qcom_icc_node *sc7180_osm_l3_nodes[] = { [MASTER_OSM_L3_APPS] = &sc7180_osm_apps_l3, @@ -113,8 +126,8 @@ static const struct qcom_icc_desc sc7180_icc_osm_l3 = { .reg_perf_state = OSM_REG_PERF_STATE, }; -DEFINE_QNODE(sm8150_osm_apps_l3, SM8150_MASTER_OSM_L3_APPS, 32, SM8150_SLAVE_OSM_L3); -DEFINE_QNODE(sm8150_osm_l3, SM8150_SLAVE_OSM_L3, 32); +DEFINE_QNODE(sm8150_osm_apps_l3, SM8150_MASTER_OSM_L3_APPS, 32, 0, 0, SM8150_SLAVE_OSM_L3); +DEFINE_QNODE(sm8150_osm_l3, SM8150_SLAVE_OSM_L3, 32, 0, 0); static const struct qcom_icc_node *sm8150_osm_l3_nodes[] = { [MASTER_OSM_L3_APPS] = &sm8150_osm_apps_l3, @@ -129,8 +142,8 @@ static const struct qcom_icc_desc sm8150_icc_osm_l3 = { .reg_perf_state = OSM_REG_PERF_STATE, }; -DEFINE_QNODE(sm8250_epss_apps_l3, SM8250_MASTER_EPSS_L3_APPS, 32, SM8250_SLAVE_EPSS_L3); -DEFINE_QNODE(sm8250_epss_l3, SM8250_SLAVE_EPSS_L3, 32); +DEFINE_QNODE(sm8250_epss_apps_l3, SM8250_MASTER_EPSS_L3_APPS, 32, 0, 0, SM8250_SLAVE_EPSS_L3); +DEFINE_QNODE(sm8250_epss_l3, SM8250_SLAVE_EPSS_L3, 32, 0, 0); static const struct qcom_icc_node *sm8250_epss_l3_nodes[] = { [MASTER_EPSS_L3_APPS] = &sm8250_epss_apps_l3, @@ -145,6 +158,39 @@ static const struct qcom_icc_desc sm8250_icc_epss_l3 = { .reg_perf_state = EPSS_REG_PERF_STATE, }; +DEFINE_QNODE(sc7280_epss_apps_l3, SC7280_MASTER_EPSS_L3_APPS, 32, 0, 0, SC7280_SLAVE_EPSS_L3_SHARED, SC7280_SLAVE_EPSS_L3_CPU0, SC7280_SLAVE_EPSS_L3_CPU1, SC7280_SLAVE_EPSS_L3_CPU2, SC7280_SLAVE_EPSS_L3_CPU3, SC7280_SLAVE_EPSS_L3_CPU4, SC7280_SLAVE_EPSS_L3_CPU5, SC7280_SLAVE_EPSS_L3_CPU6, SC7280_SLAVE_EPSS_L3_CPU7); +DEFINE_QNODE(sc7280_epss_l3_shared, SC7280_SLAVE_EPSS_L3_SHARED, 32, 0, 0); +DEFINE_QNODE(sc7280_epss_l3_cpu0, SC7280_SLAVE_EPSS_L3_CPU0, 32, 1, 0); +DEFINE_QNODE(sc7280_epss_l3_cpu1, SC7280_SLAVE_EPSS_L3_CPU1, 32, 1, 1); +DEFINE_QNODE(sc7280_epss_l3_cpu2, SC7280_SLAVE_EPSS_L3_CPU2, 32, 1, 2); +DEFINE_QNODE(sc7280_epss_l3_cpu3, SC7280_SLAVE_EPSS_L3_CPU3, 32, 1, 3); +DEFINE_QNODE(sc7280_epss_l3_cpu4, SC7280_SLAVE_EPSS_L3_CPU4, 32, 2, 0); +DEFINE_QNODE(sc7280_epss_l3_cpu5, SC7280_SLAVE_EPSS_L3_CPU5, 32, 2, 1); +DEFINE_QNODE(sc7280_epss_l3_cpu6, SC7280_SLAVE_EPSS_L3_CPU6, 32, 2, 2); +DEFINE_QNODE(sc7280_epss_l3_cpu7, SC7280_SLAVE_EPSS_L3_CPU7, 32, 3, 0); + +static const struct qcom_icc_node *sc7280_epss_l3_nodes[] = { + [MASTER_EPSS_L3_APPS] = &sc7280_epss_apps_l3, + [SLAVE_EPSS_L3_SHARED] = &sc7280_epss_l3_shared, + [SLAVE_EPSS_L3_CPU0] = &sc7280_epss_l3_cpu0, + [SLAVE_EPSS_L3_CPU1] = &sc7280_epss_l3_cpu1, + [SLAVE_EPSS_L3_CPU2] = &sc7280_epss_l3_cpu2, + [SLAVE_EPSS_L3_CPU3] = &sc7280_epss_l3_cpu3, + [SLAVE_EPSS_L3_CPU4] = &sc7280_epss_l3_cpu4, + [SLAVE_EPSS_L3_CPU5] = &sc7280_epss_l3_cpu5, + [SLAVE_EPSS_L3_CPU6] = &sc7280_epss_l3_cpu6, + [SLAVE_EPSS_L3_CPU7] = &sc7280_epss_l3_cpu7, +}; + +static const struct qcom_icc_desc sc7280_icc_epss_l3 = { + .nodes = sc7280_epss_l3_nodes, + .num_nodes = ARRAY_SIZE(sc7280_epss_l3_nodes), + .per_core_dcvs = true, + .lut_row_size = EPSS_LUT_ROW_SIZE, + .reg_freq_lut = EPSS_REG_FREQ_LUT, + .reg_perf_state = EPSS_REG_PERF_STATE, +}; + static int qcom_icc_set(struct icc_node *src, struct icc_node *dst) { struct qcom_osm_l3_icc_provider *qp; @@ -156,13 +202,18 @@ static int qcom_icc_set(struct icc_node *src, struct icc_node *dst) u32 agg_avg = 0; u64 rate; - qn = src->data; + qn = dst->data; provider = src->provider; qp = to_qcom_provider(provider); - list_for_each_entry(n, &provider->nodes, node_list) - provider->aggregate(n, 0, n->avg_bw, n->peak_bw, - &agg_avg, &agg_peak); + /* Skip aggregation when per core l3 scaling is enabled */ + if (qp->per_core_dcvs) { + agg_peak = dst->peak_bw; + } else { + list_for_each_entry(n, &provider->nodes, node_list) + provider->aggregate(n, 0, n->avg_bw, n->peak_bw, + &agg_avg, &agg_peak); + } rate = max(agg_avg, agg_peak); rate = icc_units_to_bps(rate); @@ -173,7 +224,10 @@ static int qcom_icc_set(struct icc_node *src, struct icc_node *dst) break; } - writel_relaxed(index, qp->base + qp->reg_perf_state); + if (qp->per_core_dcvs) + writel_relaxed(index, EPSS_L3_VOTE_REG(qp->domain_base[qn->domain], qn->cpu)); + else + writel_relaxed(index, qp->domain_base[qn->domain] + qp->reg_perf_state); return 0; } @@ -194,11 +248,12 @@ static int qcom_osm_l3_probe(struct platform_device *pdev) const struct qcom_icc_desc *desc; struct icc_onecell_data *data; struct icc_provider *provider; + struct property *prop; const struct qcom_icc_node **qnodes; struct icc_node *node; size_t num_nodes; struct clk *clk; - int ret; + int ret, index, domain_count; clk = clk_get(&pdev->dev, "xo"); if (IS_ERR(clk)) @@ -218,12 +273,21 @@ static int qcom_osm_l3_probe(struct platform_device *pdev) if (!qp) return -ENOMEM; - qp->base = devm_platform_ioremap_resource(pdev, 0); - if (IS_ERR(qp->base)) - return PTR_ERR(qp->base); + prop = of_find_property(pdev->dev.of_node, "reg", NULL); + if (!prop) + return -EINVAL; + domain_count = prop->length / (4 * sizeof(prop->length)); + if(!domain_count) + return -EINVAL; + + for (index = 0; index < domain_count ; index++) { + qp->domain_base[index] = devm_platform_ioremap_resource(pdev, index); + if (IS_ERR(qp->domain_base[index])) + return PTR_ERR(qp->domain_base[index]); + } /* HW should be in enabled state to proceed */ - if (!(readl_relaxed(qp->base + REG_ENABLE) & 0x1)) { + if (!(readl_relaxed(qp->domain_base[0] + REG_ENABLE) & 0x1)) { dev_err(&pdev->dev, "error hardware not enabled\n"); return -ENODEV; } @@ -235,7 +299,7 @@ static int qcom_osm_l3_probe(struct platform_device *pdev) qp->reg_perf_state = desc->reg_perf_state; for (i = 0; i < LUT_MAX_ENTRIES; i++) { - info = readl_relaxed(qp->base + desc->reg_freq_lut + + info = readl_relaxed(qp->domain_base[0] + desc->reg_freq_lut + i * desc->lut_row_size); src = FIELD_GET(LUT_SRC, info); lval = FIELD_GET(LUT_L_VAL, info); @@ -254,6 +318,7 @@ static int qcom_osm_l3_probe(struct platform_device *pdev) prev_freq = freq; } qp->max_state = i; + qp->per_core_dcvs = desc->per_core_dcvs; qnodes = desc->nodes; num_nodes = desc->num_nodes; @@ -309,6 +374,7 @@ static int qcom_osm_l3_probe(struct platform_device *pdev) static const struct of_device_id osm_l3_of_match[] = { { .compatible = "qcom,sc7180-osm-l3", .data = &sc7180_icc_osm_l3 }, + { .compatible = "qcom,sc7280-epss-l3", .data = &sc7280_icc_epss_l3 }, { .compatible = "qcom,sdm845-osm-l3", .data = &sdm845_icc_osm_l3 }, { .compatible = "qcom,sm8150-osm-l3", .data = &sm8150_icc_osm_l3 }, { .compatible = "qcom,sm8250-epss-l3", .data = &sm8250_icc_epss_l3 }, diff --git a/drivers/interconnect/qcom/sc7280.h b/drivers/interconnect/qcom/sc7280.h index 66ac6ee..6d323ba 100644 --- a/drivers/interconnect/qcom/sc7280.h +++ b/drivers/interconnect/qcom/sc7280.h @@ -148,5 +148,15 @@ #define SC7280_SLAVE_PCIE_1 137 #define SC7280_SLAVE_QDSS_STM 138 #define SC7280_SLAVE_TCU 139 +#define SC7280_MASTER_EPSS_L3_APPS 140 +#define SC7280_SLAVE_EPSS_L3_SHARED 141 +#define SC7280_SLAVE_EPSS_L3_CPU0 142 +#define SC7280_SLAVE_EPSS_L3_CPU1 143 +#define SC7280_SLAVE_EPSS_L3_CPU2 144 +#define SC7280_SLAVE_EPSS_L3_CPU3 145 +#define SC7280_SLAVE_EPSS_L3_CPU4 146 +#define SC7280_SLAVE_EPSS_L3_CPU5 147 +#define SC7280_SLAVE_EPSS_L3_CPU6 148 +#define SC7280_SLAVE_EPSS_L3_CPU7 149 #endif diff --git a/include/dt-bindings/interconnect/qcom,osm-l3.h b/include/dt-bindings/interconnect/qcom,osm-l3.h index 61ef649..99534a5 100644 --- a/include/dt-bindings/interconnect/qcom,osm-l3.h +++ b/include/dt-bindings/interconnect/qcom,osm-l3.h @@ -1,6 +1,6 @@ /* SPDX-License-Identifier: GPL-2.0 */ /* - * Copyright (C) 2019 The Linux Foundation. All rights reserved. + * Copyright (C) 2019, 2021 The Linux Foundation. All rights reserved. */ #ifndef __DT_BINDINGS_INTERCONNECT_QCOM_OSM_L3_H @@ -11,5 +11,13 @@ #define MASTER_EPSS_L3_APPS 0 #define SLAVE_EPSS_L3_SHARED 1 +#define SLAVE_EPSS_L3_CPU0 2 +#define SLAVE_EPSS_L3_CPU1 3 +#define SLAVE_EPSS_L3_CPU2 4 +#define SLAVE_EPSS_L3_CPU3 5 +#define SLAVE_EPSS_L3_CPU4 6 +#define SLAVE_EPSS_L3_CPU5 7 +#define SLAVE_EPSS_L3_CPU6 8 +#define SLAVE_EPSS_L3_CPU7 9 #endif
Add Epoch Subsystem (EPSS) L3 interconnect provider support on SC7280 SoCs. Signed-off-by: Odelu Kukatla <okukatla@codeaurora.org> --- drivers/interconnect/qcom/osm-l3.c | 124 +++++++++++++++++++------ drivers/interconnect/qcom/sc7280.h | 10 ++ include/dt-bindings/interconnect/qcom,osm-l3.h | 10 +- 3 files changed, 114 insertions(+), 30 deletions(-)