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Commit f64f2f13 authored by qctecmdr's avatar qctecmdr Committed by Gerrit - the friendly Code Review server
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Merge "cpufreq: qcom: Add support for performance lock feature"

parents 7765a70f 71821a2f

drivers/cpufreq/qcom-cpufreq-hw.c

+29 −1
Original line number Diff line number Diff line
@@ -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) {