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Merge "cpufreq: qcom: Add support for performance lock feature"

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qctecmdr 2020-09-07 01:24:47 -07:00 • committed by Gerrit - the friendly Code Review server
commit f64f2f13d4
1 changed files with 29 additions and 1 deletions
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30
drivers/cpufreq/qcom-cpufreq-hw.c
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@ -29,7 +29,7 @@
#define LUT_ROW_SIZE 32
#define CLK_HW_DIV 2
#define GT_IRQ_STATUS BIT(2)
#define MAX_FN_SIZE 12
#define MAX_FN_SIZE 20
#define LIMITS_POLLING_DELAY_MS 10
#define CYCLE_CNTR_OFFSET(c, m, acc_count) \
@ -54,10 +54,12 @@ static const u16 *offsets;
static unsigned int lut_row_size = LUT_ROW_SIZE;
static unsigned int lut_max_entries = LUT_MAX_ENTRIES;
static bool accumulative_counter;
static bool perf_lock_support;
struct cpufreq_qcom {
struct cpufreq_frequency_table *table;
void __iomem *base;
void __iomem *pdmem_base;
cpumask_t related_cpus;
unsigned long dcvsh_freq_limit;
struct delayed_work freq_poll_work;
@ -234,6 +236,14 @@ static int
qcom_cpufreq_hw_target_index(struct cpufreq_policy *policy,
unsigned int index)
{
struct cpufreq_qcom *c;
if (perf_lock_support) {
c = qcom_freq_domain_map[policy->cpu];
if (c->pdmem_base)
writel_relaxed(index, c->pdmem_base);
}
writel_relaxed(index, policy->driver_data + offsets[REG_PERF_STATE]);
arch_set_freq_scale(policy->related_cpus,
policy->freq_table[index].frequency,
@ -469,6 +479,7 @@ static int qcom_cpu_resources_init(struct platform_device *pdev,
struct resource *res;
struct device *dev = &pdev->dev;
void __iomem *base;
char pdmem_name[MAX_FN_SIZE] = {};
int ret, cpu_r;
c = devm_kzalloc(dev, sizeof(*c), GFP_KERNEL);
@ -509,6 +520,23 @@ static int qcom_cpu_resources_init(struct platform_device *pdev,
return ret;
}
perf_lock_support = of_property_read_bool(dev->of_node,
"qcom,perf-lock-support");
if (perf_lock_support) {
snprintf(pdmem_name, sizeof(pdmem_name), "pdmem-domain%d",
index);
res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
pdmem_name);
if (!res)
dev_err(dev, "PDMEM domain-%d failed\n", index);
base = devm_ioremap_resource(dev, res);
if (IS_ERR(base))
dev_err(dev, "Failed to map PDMEM domain-%d\n", index);
else
c->pdmem_base = base;
}
if (of_find_property(dev->of_node, "interrupts", NULL)) {
c->dcvsh_irq = of_irq_get(dev->of_node, index);
if (c->dcvsh_irq > 0) {