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| author |   Sibi Sankar <sibis@codeaurora.org> | 2020-09-08 16:29:01 +0300 |
|---|---|---|
| committer |   Georgi Djakov <georgi.djakov@linaro.org> | 2020-09-08 16:29:01 +0300 |
| commit | 2bf706ea930edd2d6c286dcb13dd4afc0f0abd65 (patch) | |
| tree | a020b74ea2848f04ef6382cc9dd6a9ea8c42996b /drivers/interconnect | |
| parent | interconnect: qcom: Add OSM L3 support on SM8150 (diff) | |
| download | linux-dev-2bf706ea930edd2d6c286dcb13dd4afc0f0abd65.tar.xz linux-dev-2bf706ea930edd2d6c286dcb13dd4afc0f0abd65.zip | |
interconnect: qcom: Lay the groundwork for adding EPSS support
Lay the groundwork for adding Epoch Subsystem (EPSS) L3 support on
SM8250.
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Link: https://lore.kernel.org/r/20200801123049.32398-4-sibis@codeaurora.org
Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
Diffstat (limited to 'drivers/interconnect')
| -rw-r--r-- | drivers/interconnect/qcom/osm-l3.c | 37 |
1 files changed, 26 insertions, 11 deletions
diff --git a/drivers/interconnect/qcom/osm-l3.c b/drivers/interconnect/qcom/osm-l3.c index 00831c33e0fe..27c9ece52efd 100644 --- a/drivers/interconnect/qcom/osm-l3.c +++ b/drivers/interconnect/qcom/osm-l3.c @@ -21,13 +21,13 @@ #define LUT_MAX_ENTRIES 40U #define LUT_SRC GENMASK(31, 30) #define LUT_L_VAL GENMASK(7, 0) -#define LUT_ROW_SIZE 32 #define CLK_HW_DIV 2 -/* Register offsets */ +/* OSM Register offsets */ #define REG_ENABLE 0x0 -#define REG_FREQ_LUT 0x110 -#define REG_PERF_STATE 0x920 +#define OSM_LUT_ROW_SIZE 32 +#define OSM_REG_FREQ_LUT 0x110 +#define OSM_REG_PERF_STATE 0x920 #define OSM_L3_MAX_LINKS 1 @@ -37,6 +37,7 @@ struct qcom_osm_l3_icc_provider { void __iomem *base; unsigned int max_state; + unsigned int reg_perf_state; unsigned long lut_tables[LUT_MAX_ENTRIES]; struct icc_provider provider; }; @@ -60,6 +61,9 @@ struct qcom_icc_node { struct qcom_icc_desc { struct qcom_icc_node **nodes; size_t num_nodes; + unsigned int lut_row_size; + unsigned int reg_freq_lut; + unsigned int reg_perf_state; }; #define DEFINE_QNODE(_name, _id, _buswidth, ...) \ @@ -82,6 +86,9 @@ static struct qcom_icc_node *sdm845_osm_l3_nodes[] = { static const struct qcom_icc_desc sdm845_icc_osm_l3 = { .nodes = sdm845_osm_l3_nodes, .num_nodes = ARRAY_SIZE(sdm845_osm_l3_nodes), + .lut_row_size = OSM_LUT_ROW_SIZE, + .reg_freq_lut = OSM_REG_FREQ_LUT, + .reg_perf_state = OSM_REG_PERF_STATE, }; DEFINE_QNODE(sc7180_osm_apps_l3, SC7180_MASTER_OSM_L3_APPS, 16, SC7180_SLAVE_OSM_L3); @@ -95,6 +102,9 @@ static struct qcom_icc_node *sc7180_osm_l3_nodes[] = { static const struct qcom_icc_desc sc7180_icc_osm_l3 = { .nodes = sc7180_osm_l3_nodes, .num_nodes = ARRAY_SIZE(sc7180_osm_l3_nodes), + .lut_row_size = OSM_LUT_ROW_SIZE, + .reg_freq_lut = OSM_REG_FREQ_LUT, + .reg_perf_state = OSM_REG_PERF_STATE, }; DEFINE_QNODE(sm8150_osm_apps_l3, SM8150_MASTER_OSM_L3_APPS, 32, SM8150_SLAVE_OSM_L3); @@ -108,6 +118,9 @@ static struct qcom_icc_node *sm8150_osm_l3_nodes[] = { static const struct qcom_icc_desc sm8150_icc_osm_l3 = { .nodes = sm8150_osm_l3_nodes, .num_nodes = ARRAY_SIZE(sm8150_osm_l3_nodes), + .lut_row_size = OSM_LUT_ROW_SIZE, + .reg_freq_lut = OSM_REG_FREQ_LUT, + .reg_perf_state = OSM_REG_PERF_STATE, }; static int qcom_icc_set(struct icc_node *src, struct icc_node *dst) @@ -138,7 +151,7 @@ static int qcom_icc_set(struct icc_node *src, struct icc_node *dst) break; } - writel_relaxed(index, qp->base + REG_PERF_STATE); + writel_relaxed(index, qp->base + qp->reg_perf_state); return 0; } @@ -193,9 +206,15 @@ static int qcom_osm_l3_probe(struct platform_device *pdev) return -ENODEV; } + desc = device_get_match_data(&pdev->dev); + if (!desc) + return -EINVAL; + + qp->reg_perf_state = desc->reg_perf_state; + for (i = 0; i < LUT_MAX_ENTRIES; i++) { - info = readl_relaxed(qp->base + REG_FREQ_LUT + - i * LUT_ROW_SIZE); + info = readl_relaxed(qp->base + desc->reg_freq_lut + + i * desc->lut_row_size); src = FIELD_GET(LUT_SRC, info); lval = FIELD_GET(LUT_L_VAL, info); if (src) @@ -214,10 +233,6 @@ static int qcom_osm_l3_probe(struct platform_device *pdev) } qp->max_state = i; - desc = device_get_match_data(&pdev->dev); - if (!desc) - return -EINVAL; - qnodes = desc->nodes; num_nodes = desc->num_nodes; |