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-rw-r--r--drivers/cpufreq/amd-pstate.c8
-rw-r--r--drivers/cpufreq/cppc_cpufreq.c14
-rw-r--r--drivers/cpufreq/cpufreq-dt.c2
-rw-r--r--drivers/cpufreq/imx6q-cpufreq.c2
-rw-r--r--drivers/cpufreq/mediatek-cpufreq-hw.c2
-rw-r--r--drivers/cpufreq/mediatek-cpufreq.c14
-rw-r--r--drivers/cpufreq/rcpufreq_dt.rs12
-rw-r--r--drivers/cpufreq/scmi-cpufreq.c2
-rw-r--r--drivers/cpufreq/scpi-cpufreq.c2
-rw-r--r--drivers/cpufreq/spear-cpufreq.c2
-rw-r--r--drivers/cpufreq/tegra186-cpufreq.c35
11 files changed, 64 insertions, 31 deletions
diff --git a/drivers/cpufreq/amd-pstate.c b/drivers/cpufreq/amd-pstate.c
index b4c79fde1979..298e92d8cc03 100644
--- a/drivers/cpufreq/amd-pstate.c
+++ b/drivers/cpufreq/amd-pstate.c
@@ -872,10 +872,10 @@ static void amd_pstate_update_limits(struct cpufreq_policy *policy)
*/
static u32 amd_pstate_get_transition_delay_us(unsigned int cpu)
{
- u32 transition_delay_ns;
+ int transition_delay_ns;
transition_delay_ns = cppc_get_transition_latency(cpu);
- if (transition_delay_ns == CPUFREQ_ETERNAL) {
+ if (transition_delay_ns < 0) {
if (cpu_feature_enabled(X86_FEATURE_AMD_FAST_CPPC))
return AMD_PSTATE_FAST_CPPC_TRANSITION_DELAY;
else
@@ -891,10 +891,10 @@ static u32 amd_pstate_get_transition_delay_us(unsigned int cpu)
*/
static u32 amd_pstate_get_transition_latency(unsigned int cpu)
{
- u32 transition_latency;
+ int transition_latency;
transition_latency = cppc_get_transition_latency(cpu);
- if (transition_latency == CPUFREQ_ETERNAL)
+ if (transition_latency < 0)
return AMD_PSTATE_TRANSITION_LATENCY;
return transition_latency;
diff --git a/drivers/cpufreq/cppc_cpufreq.c b/drivers/cpufreq/cppc_cpufreq.c
index 12de0ac7bbaf..e23d9abea135 100644
--- a/drivers/cpufreq/cppc_cpufreq.c
+++ b/drivers/cpufreq/cppc_cpufreq.c
@@ -308,6 +308,16 @@ static int cppc_verify_policy(struct cpufreq_policy_data *policy)
return 0;
}
+static unsigned int __cppc_cpufreq_get_transition_delay_us(unsigned int cpu)
+{
+ int transition_latency_ns = cppc_get_transition_latency(cpu);
+
+ if (transition_latency_ns < 0)
+ return CPUFREQ_DEFAULT_TRANSITION_LATENCY_NS / NSEC_PER_USEC;
+
+ return transition_latency_ns / NSEC_PER_USEC;
+}
+
/*
* The PCC subspace describes the rate at which platform can accept commands
* on the shared PCC channel (including READs which do not count towards freq
@@ -330,12 +340,12 @@ static unsigned int cppc_cpufreq_get_transition_delay_us(unsigned int cpu)
return 10000;
}
}
- return cppc_get_transition_latency(cpu) / NSEC_PER_USEC;
+ return __cppc_cpufreq_get_transition_delay_us(cpu);
}
#else
static unsigned int cppc_cpufreq_get_transition_delay_us(unsigned int cpu)
{
- return cppc_get_transition_latency(cpu) / NSEC_PER_USEC;
+ return __cppc_cpufreq_get_transition_delay_us(cpu);
}
#endif
diff --git a/drivers/cpufreq/cpufreq-dt.c b/drivers/cpufreq/cpufreq-dt.c
index 506437489b4d..7d5079fd1688 100644
--- a/drivers/cpufreq/cpufreq-dt.c
+++ b/drivers/cpufreq/cpufreq-dt.c
@@ -104,7 +104,7 @@ static int cpufreq_init(struct cpufreq_policy *policy)
transition_latency = dev_pm_opp_get_max_transition_latency(cpu_dev);
if (!transition_latency)
- transition_latency = CPUFREQ_ETERNAL;
+ transition_latency = CPUFREQ_DEFAULT_TRANSITION_LATENCY_NS;
cpumask_copy(policy->cpus, priv->cpus);
policy->driver_data = priv;
diff --git a/drivers/cpufreq/imx6q-cpufreq.c b/drivers/cpufreq/imx6q-cpufreq.c
index db1c88e9d3f9..e93697d3edfd 100644
--- a/drivers/cpufreq/imx6q-cpufreq.c
+++ b/drivers/cpufreq/imx6q-cpufreq.c
@@ -442,7 +442,7 @@ soc_opp_out:
}
if (of_property_read_u32(np, "clock-latency", &transition_latency))
- transition_latency = CPUFREQ_ETERNAL;
+ transition_latency = CPUFREQ_DEFAULT_TRANSITION_LATENCY_NS;
/*
* Calculate the ramp time for max voltage change in the
diff --git a/drivers/cpufreq/mediatek-cpufreq-hw.c b/drivers/cpufreq/mediatek-cpufreq-hw.c
index fce5aa5ceea0..ae4500ab4891 100644
--- a/drivers/cpufreq/mediatek-cpufreq-hw.c
+++ b/drivers/cpufreq/mediatek-cpufreq-hw.c
@@ -309,7 +309,7 @@ static int mtk_cpufreq_hw_cpu_init(struct cpufreq_policy *policy)
latency = readl_relaxed(data->reg_bases[REG_FREQ_LATENCY]) * 1000;
if (!latency)
- latency = CPUFREQ_ETERNAL;
+ latency = CPUFREQ_DEFAULT_TRANSITION_LATENCY_NS;
policy->cpuinfo.transition_latency = latency;
policy->fast_switch_possible = true;
diff --git a/drivers/cpufreq/mediatek-cpufreq.c b/drivers/cpufreq/mediatek-cpufreq.c
index 00de1166188a..5d50a231f944 100644
--- a/drivers/cpufreq/mediatek-cpufreq.c
+++ b/drivers/cpufreq/mediatek-cpufreq.c
@@ -403,9 +403,11 @@ static int mtk_cpu_dvfs_info_init(struct mtk_cpu_dvfs_info *info, int cpu)
}
info->cpu_clk = clk_get(cpu_dev, "cpu");
- if (IS_ERR(info->cpu_clk))
- return dev_err_probe(cpu_dev, PTR_ERR(info->cpu_clk),
- "cpu%d: failed to get cpu clk\n", cpu);
+ if (IS_ERR(info->cpu_clk)) {
+ ret = PTR_ERR(info->cpu_clk);
+ dev_err_probe(cpu_dev, ret, "cpu%d: failed to get cpu clk\n", cpu);
+ goto out_put_cci_dev;
+ }
info->inter_clk = clk_get(cpu_dev, "intermediate");
if (IS_ERR(info->inter_clk)) {
@@ -551,6 +553,10 @@ out_free_inter_clock:
out_free_mux_clock:
clk_put(info->cpu_clk);
+out_put_cci_dev:
+ if (info->soc_data->ccifreq_supported)
+ put_device(info->cci_dev);
+
return ret;
}
@@ -568,6 +574,8 @@ static void mtk_cpu_dvfs_info_release(struct mtk_cpu_dvfs_info *info)
clk_put(info->inter_clk);
dev_pm_opp_of_cpumask_remove_table(&info->cpus);
dev_pm_opp_unregister_notifier(info->cpu_dev, &info->opp_nb);
+ if (info->soc_data->ccifreq_supported)
+ put_device(info->cci_dev);
}
static int mtk_cpufreq_init(struct cpufreq_policy *policy)
diff --git a/drivers/cpufreq/rcpufreq_dt.rs b/drivers/cpufreq/rcpufreq_dt.rs
index 7e1fbf9a091f..53923b8ef7a1 100644
--- a/drivers/cpufreq/rcpufreq_dt.rs
+++ b/drivers/cpufreq/rcpufreq_dt.rs
@@ -28,15 +28,11 @@ fn find_supply_name_exact(dev: &Device, name: &str) -> Option<CString> {
/// Finds supply name for the CPU from DT.
fn find_supply_names(dev: &Device, cpu: cpu::CpuId) -> Option<KVec<CString>> {
// Try "cpu0" for older DTs, fallback to "cpu".
- let name = (cpu.as_u32() == 0)
+ (cpu.as_u32() == 0)
.then(|| find_supply_name_exact(dev, "cpu0"))
.flatten()
- .or_else(|| find_supply_name_exact(dev, "cpu"))?;
-
- let mut list = KVec::with_capacity(1, GFP_KERNEL).ok()?;
- list.push(name, GFP_KERNEL).ok()?;
-
- Some(list)
+ .or_else(|| find_supply_name_exact(dev, "cpu"))
+ .and_then(|name| kernel::kvec![name].ok())
}
/// Represents the cpufreq dt device.
@@ -123,7 +119,7 @@ impl cpufreq::Driver for CPUFreqDTDriver {
let mut transition_latency = opp_table.max_transition_latency_ns() as u32;
if transition_latency == 0 {
- transition_latency = cpufreq::ETERNAL_LATENCY_NS;
+ transition_latency = cpufreq::DEFAULT_TRANSITION_LATENCY_NS;
}
policy
diff --git a/drivers/cpufreq/scmi-cpufreq.c b/drivers/cpufreq/scmi-cpufreq.c
index 38c165d526d1..d2a110079f5f 100644
--- a/drivers/cpufreq/scmi-cpufreq.c
+++ b/drivers/cpufreq/scmi-cpufreq.c
@@ -294,7 +294,7 @@ static int scmi_cpufreq_init(struct cpufreq_policy *policy)
latency = perf_ops->transition_latency_get(ph, domain);
if (!latency)
- latency = CPUFREQ_ETERNAL;
+ latency = CPUFREQ_DEFAULT_TRANSITION_LATENCY_NS;
policy->cpuinfo.transition_latency = latency;
diff --git a/drivers/cpufreq/scpi-cpufreq.c b/drivers/cpufreq/scpi-cpufreq.c
index dcbb0ae7dd47..e530345baddf 100644
--- a/drivers/cpufreq/scpi-cpufreq.c
+++ b/drivers/cpufreq/scpi-cpufreq.c
@@ -157,7 +157,7 @@ static int scpi_cpufreq_init(struct cpufreq_policy *policy)
latency = scpi_ops->get_transition_latency(cpu_dev);
if (!latency)
- latency = CPUFREQ_ETERNAL;
+ latency = CPUFREQ_DEFAULT_TRANSITION_LATENCY_NS;
policy->cpuinfo.transition_latency = latency;
diff --git a/drivers/cpufreq/spear-cpufreq.c b/drivers/cpufreq/spear-cpufreq.c
index 707c71090cc3..2a1550e1aa21 100644
--- a/drivers/cpufreq/spear-cpufreq.c
+++ b/drivers/cpufreq/spear-cpufreq.c
@@ -182,7 +182,7 @@ static int spear_cpufreq_probe(struct platform_device *pdev)
if (of_property_read_u32(np, "clock-latency",
&spear_cpufreq.transition_latency))
- spear_cpufreq.transition_latency = CPUFREQ_ETERNAL;
+ spear_cpufreq.transition_latency = CPUFREQ_DEFAULT_TRANSITION_LATENCY_NS;
cnt = of_property_count_u32_elems(np, "cpufreq_tbl");
if (cnt <= 0) {
diff --git a/drivers/cpufreq/tegra186-cpufreq.c b/drivers/cpufreq/tegra186-cpufreq.c
index 4270686fc3e3..136ab102f636 100644
--- a/drivers/cpufreq/tegra186-cpufreq.c
+++ b/drivers/cpufreq/tegra186-cpufreq.c
@@ -93,10 +93,14 @@ static int tegra186_cpufreq_set_target(struct cpufreq_policy *policy,
{
struct tegra186_cpufreq_data *data = cpufreq_get_driver_data();
struct cpufreq_frequency_table *tbl = policy->freq_table + index;
- unsigned int edvd_offset = data->cpus[policy->cpu].edvd_offset;
+ unsigned int edvd_offset;
u32 edvd_val = tbl->driver_data;
+ u32 cpu;
- writel(edvd_val, data->regs + edvd_offset);
+ for_each_cpu(cpu, policy->cpus) {
+ edvd_offset = data->cpus[cpu].edvd_offset;
+ writel(edvd_val, data->regs + edvd_offset);
+ }
return 0;
}
@@ -132,13 +136,14 @@ static struct cpufreq_driver tegra186_cpufreq_driver = {
static struct cpufreq_frequency_table *init_vhint_table(
struct platform_device *pdev, struct tegra_bpmp *bpmp,
- struct tegra186_cpufreq_cluster *cluster, unsigned int cluster_id)
+ struct tegra186_cpufreq_cluster *cluster, unsigned int cluster_id,
+ int *num_rates)
{
struct cpufreq_frequency_table *table;
struct mrq_cpu_vhint_request req;
struct tegra_bpmp_message msg;
struct cpu_vhint_data *data;
- int err, i, j, num_rates = 0;
+ int err, i, j;
dma_addr_t phys;
void *virt;
@@ -168,6 +173,7 @@ static struct cpufreq_frequency_table *init_vhint_table(
goto free;
}
+ *num_rates = 0;
for (i = data->vfloor; i <= data->vceil; i++) {
u16 ndiv = data->ndiv[i];
@@ -178,10 +184,10 @@ static struct cpufreq_frequency_table *init_vhint_table(
if (i > 0 && ndiv == data->ndiv[i - 1])
continue;
- num_rates++;
+ (*num_rates)++;
}
- table = devm_kcalloc(&pdev->dev, num_rates + 1, sizeof(*table),
+ table = devm_kcalloc(&pdev->dev, *num_rates + 1, sizeof(*table),
GFP_KERNEL);
if (!table) {
table = ERR_PTR(-ENOMEM);
@@ -223,7 +229,9 @@ static int tegra186_cpufreq_probe(struct platform_device *pdev)
{
struct tegra186_cpufreq_data *data;
struct tegra_bpmp *bpmp;
- unsigned int i = 0, err;
+ unsigned int i = 0, err, edvd_offset;
+ int num_rates = 0;
+ u32 edvd_val, cpu;
data = devm_kzalloc(&pdev->dev,
struct_size(data, clusters, TEGRA186_NUM_CLUSTERS),
@@ -246,10 +254,21 @@ static int tegra186_cpufreq_probe(struct platform_device *pdev)
for (i = 0; i < TEGRA186_NUM_CLUSTERS; i++) {
struct tegra186_cpufreq_cluster *cluster = &data->clusters[i];
- cluster->table = init_vhint_table(pdev, bpmp, cluster, i);
+ cluster->table = init_vhint_table(pdev, bpmp, cluster, i, &num_rates);
if (IS_ERR(cluster->table)) {
err = PTR_ERR(cluster->table);
goto put_bpmp;
+ } else if (!num_rates) {
+ err = -EINVAL;
+ goto put_bpmp;
+ }
+
+ for (cpu = 0; cpu < ARRAY_SIZE(tegra186_cpus); cpu++) {
+ if (data->cpus[cpu].bpmp_cluster_id == i) {
+ edvd_val = cluster->table[num_rates - 1].driver_data;
+ edvd_offset = data->cpus[cpu].edvd_offset;
+ writel(edvd_val, data->regs + edvd_offset);
+ }
}
}
generated by cgit (git 2.34.1) at 2025-10-08 05:23:49 +0000