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cpufreq: tegra194: Add support for Tegra239 

Adding support for Tegra239 SoC which has eight cores in
a single cluster. Also, moving num_clusters to SoC data
to avoid over allocating memory for four clusters always.

Signed-off-by: Sumit Gupta <sumitg@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
This commit is contained in:
Sumit Gupta 2022-09-20 16:36:46 +05:30 committed by Viresh Kumar
parent 91dc90fdb8
commit 6768860107
1 changed files with 15 additions and 14 deletions
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29
drivers/cpufreq/tegra194-cpufreq.c
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@ -38,14 +38,6 @@
/* cpufreq transisition latency */
#define TEGRA_CPUFREQ_TRANSITION_LATENCY (300 * 1000) /* unit in nanoseconds */
enum cluster {
CLUSTER0,
CLUSTER1,
CLUSTER2,
CLUSTER3,
MAX_CLUSTERS,
};
struct tegra_cpu_ctr {
u32 cpu;
u32 coreclk_cnt, last_coreclk_cnt;
@ -67,12 +59,12 @@ struct tegra_cpufreq_ops {
struct tegra_cpufreq_soc {
struct tegra_cpufreq_ops *ops;
int maxcpus_per_cluster;
unsigned int num_clusters;
phys_addr_t actmon_cntr_base;
};
struct tegra194_cpufreq_data {
void __iomem *regs;
size_t num_clusters;
struct cpufreq_frequency_table **tables;
const struct tegra_cpufreq_soc *soc;
};
@ -166,6 +158,14 @@ static const struct tegra_cpufreq_soc tegra234_cpufreq_soc = {
.ops = &tegra234_cpufreq_ops,
.actmon_cntr_base = 0x9000,
.maxcpus_per_cluster = 4,
.num_clusters = 3,
};
const struct tegra_cpufreq_soc tegra239_cpufreq_soc = {
.ops = &tegra234_cpufreq_ops,
.actmon_cntr_base = 0x4000,
.maxcpus_per_cluster = 8,
.num_clusters = 1,
};
static void tegra194_get_cpu_cluster_id(u32 cpu, u32 *cpuid, u32 *clusterid)
@ -378,7 +378,7 @@ static int tegra194_cpufreq_init(struct cpufreq_policy *policy)
data->soc->ops->get_cpu_cluster_id(policy->cpu, NULL, &clusterid);
if (clusterid >= data->num_clusters || !data->tables[clusterid])
if (clusterid >= data->soc->num_clusters || !data->tables[clusterid])
return -EINVAL;
start_cpu = rounddown(policy->cpu, maxcpus_per_cluster);
@ -429,6 +429,7 @@ static struct tegra_cpufreq_ops tegra194_cpufreq_ops = {
static const struct tegra_cpufreq_soc tegra194_cpufreq_soc = {
.ops = &tegra194_cpufreq_ops,
.maxcpus_per_cluster = 2,
.num_clusters = 4,
};
static void tegra194_cpufreq_free_resources(void)
@ -521,15 +522,14 @@ static int tegra194_cpufreq_probe(struct platform_device *pdev)
soc = of_device_get_match_data(&pdev->dev);
if (soc->ops && soc->maxcpus_per_cluster) {
if (soc->ops && soc->maxcpus_per_cluster && soc->num_clusters) {
data->soc = soc;
} else {
dev_err(&pdev->dev, "soc data missing\n");
return -EINVAL;
}
data->num_clusters = MAX_CLUSTERS;
data->tables = devm_kcalloc(&pdev->dev, data->num_clusters,
data->tables = devm_kcalloc(&pdev->dev, data->soc->num_clusters,
sizeof(*data->tables), GFP_KERNEL);
if (!data->tables)
return -ENOMEM;
@ -554,7 +554,7 @@ static int tegra194_cpufreq_probe(struct platform_device *pdev)
goto put_bpmp;
}
for (i = 0; i < data->num_clusters; i++) {
for (i = 0; i < data->soc->num_clusters; i++) {
data->tables[i] = init_freq_table(pdev, bpmp, i);
if (IS_ERR(data->tables[i])) {
err = PTR_ERR(data->tables[i]);
@ -586,6 +586,7 @@ static int tegra194_cpufreq_remove(struct platform_device *pdev)
static const struct of_device_id tegra194_cpufreq_of_match[] = {
{ .compatible = "nvidia,tegra194-ccplex", .data = &tegra194_cpufreq_soc },
{ .compatible = "nvidia,tegra234-ccplex-cluster", .data = &tegra234_cpufreq_soc },
{ .compatible = "nvidia,tegra239-ccplex-cluster", .data = &tegra239_cpufreq_soc },
{ /* sentinel */ }
};