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Diffstat (limited to 'mali-midgard-16.0/ipa/mali_kbase_ipa_generic.c')
-rw-r--r--mali-midgard-16.0/ipa/mali_kbase_ipa_generic.c217
1 files changed, 0 insertions, 217 deletions
diff --git a/mali-midgard-16.0/ipa/mali_kbase_ipa_generic.c b/mali-midgard-16.0/ipa/mali_kbase_ipa_generic.c
deleted file mode 100644
index 18fb2b2..0000000
--- a/mali-midgard-16.0/ipa/mali_kbase_ipa_generic.c
+++ /dev/null
@@ -1,217 +0,0 @@
-/*
- *
- * (C) COPYRIGHT 2016 ARM Limited. All rights reserved.
- *
- * This program is free software and is provided to you under the terms of the
- * GNU General Public License version 2 as published by the Free Software
- * Foundation, and any use by you of this program is subject to the terms
- * of such GNU licence.
- *
- * A copy of the licence is included with the program, and can also be obtained
- * from Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- * Boston, MA 02110-1301, USA.
- *
- */
-
-
-
-#include <linux/thermal.h>
-#ifdef CONFIG_DEVFREQ_THERMAL
-#include <linux/devfreq_cooling.h>
-#endif
-#include <linux/of.h>
-
-#include "mali_kbase.h"
-#include "mali_kbase_defs.h"
-
-/*
- * This model is primarily designed for the Juno platform. It may not be
- * suitable for other platforms. The additional resources in this model
- * should preferably be minimal, as this model is rarely used when a dynamic
- * model is available.
- */
-
-/**
- * struct kbase_ipa_model_generic_data - IPA context per device
- * @dynamic_coefficient: dynamic coefficient of the model
- * @static_coefficient: static coefficient of the model
- * @ts: ts of the model
- * @gpu_tz: thermal zone device
- * @ipa_lock: protects the entire IPA context
- */
-
-struct kbase_ipa_model_generic_data {
- u32 dynamic_coefficient;
- u32 static_coefficient;
- s32 ts[4];
- struct thermal_zone_device *gpu_tz;
- struct mutex ipa_lock;
-};
-#define FALLBACK_STATIC_TEMPERATURE 55000
-
-static unsigned long model_static_power(struct kbase_ipa_model *model,
- unsigned long voltage)
-{
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 3, 0)
- unsigned long temperature;
-#else
- int temperature;
-#endif
- unsigned long temp;
- unsigned long temp_squared, temp_cubed, temp_scaling_factor;
- const unsigned long voltage_cubed = (voltage * voltage * voltage) >> 10;
- struct kbase_ipa_model_generic_data *model_data =
- (struct kbase_ipa_model_generic_data *) model->model_data;
- struct thermal_zone_device *gpu_tz = model_data->gpu_tz;
-
- if (gpu_tz) {
- int ret;
-
- ret = gpu_tz->ops->get_temp(gpu_tz, &temperature);
- if (ret) {
- pr_warn_ratelimited("Error reading temperature for gpu thermal zone: %d\n",
- ret);
- temperature = FALLBACK_STATIC_TEMPERATURE;
- }
- } else {
- temperature = FALLBACK_STATIC_TEMPERATURE;
- }
-
- /* Calculate the temperature scaling factor. To be applied to the
- * voltage scaled power.
- */
- temp = temperature / 1000;
- temp_squared = temp * temp;
- temp_cubed = temp_squared * temp;
- temp_scaling_factor =
- (model_data->ts[3] * temp_cubed)
- + (model_data->ts[2] * temp_squared)
- + (model_data->ts[1] * temp)
- + model_data->ts[0];
-
- return (((model_data->static_coefficient * voltage_cubed) >> 20)
- * temp_scaling_factor)
- / 1000000;
-}
-
-static unsigned long model_dynamic_power(struct kbase_ipa_model *model)
-{
- struct kbase_ipa_model_generic_data *model_data =
- (struct kbase_ipa_model_generic_data *) model->model_data;
-
- return model_data->dynamic_coefficient;
-}
-
-static int kbase_generic_power_model_init(struct kbase_ipa_model *model)
-{
- struct kbase_device *kbdev = model->kbdev;
- struct device_node *power_model_node;
- const char *tz_name;
- u32 static_power, dynamic_power;
- u32 voltage, voltage_squared, voltage_cubed, frequency;
- struct kbase_ipa_model_generic_data *model_data;
- int err;
-
- model_data = kzalloc(sizeof(struct kbase_ipa_model_generic_data),
- GFP_KERNEL);
-
- if (!model_data)
- return -ENOMEM;
-
- power_model_node = of_get_child_by_name(kbdev->dev->of_node,
- "power_model");
- if (!power_model_node) {
- dev_err(kbdev->dev, "could not find power_model node\n");
- err = -ENODEV;
- goto error;
- }
- if (!of_device_is_compatible(power_model_node,
- "arm,mali-simple-power-model")) {
- dev_err(kbdev->dev, "power_model incompatible with simple power model\n");
- err = -ENODEV;
- goto error;
- }
-
- err = of_property_read_string(power_model_node, "thermal-zone",
- &tz_name);
- if (err) {
- dev_err(kbdev->dev, "thermal zone in power_model not available\n");
- goto error;
- }
-
- model_data->gpu_tz = thermal_zone_get_zone_by_name(tz_name);
- if (IS_ERR(model_data->gpu_tz)) {
- pr_warn_ratelimited("Error getting gpu thermal zone (%ld), not yet ready?\n",
- PTR_ERR(model_data->gpu_tz));
- model_data->gpu_tz = NULL;
- err = -EPROBE_DEFER;
- goto error;
- }
-
- err = of_property_read_u32(power_model_node, "static-power",
- &static_power);
- if (err) {
- dev_err(kbdev->dev, "static-power in power_model not available\n");
- goto error;
- }
-
- err = of_property_read_u32(power_model_node, "dynamic-power",
- &dynamic_power);
- if (err) {
- dev_err(kbdev->dev, "dynamic-power in power_model not available\n");
- goto error;
- }
-
- err = of_property_read_u32(power_model_node, "voltage",
- &voltage);
- if (err) {
- dev_err(kbdev->dev, "voltage in power_model not available\n");
- goto error;
- }
-
- err = of_property_read_u32(power_model_node, "frequency",
- &frequency);
- if (err) {
- dev_err(kbdev->dev, "frequency in power_model not available\n");
- goto error;
- }
- voltage_squared = (voltage * voltage) / 1000;
- voltage_cubed = voltage * voltage * voltage;
- model_data->static_coefficient =
- (static_power << 20) / (voltage_cubed >> 10);
- model_data->dynamic_coefficient =
- (((dynamic_power * 1000) / voltage_squared) * 1000) / frequency;
-
- err = of_property_read_u32_array(power_model_node,
- "ts",
- (u32 *)model_data->ts,
- 4);
- if (err) {
- dev_err(kbdev->dev, "ts in power_model not available\n");
- goto error;
- }
-
- model->model_data = (void *) model_data;
-
- return 0;
-error:
- kfree(model_data);
- return err;
-}
-
-static void kbase_generic_power_model_term(struct kbase_ipa_model *model)
-{
- struct kbase_ipa_model_generic_data *model_data =
- (struct kbase_ipa_model_generic_data *)model->model_data;
-
- kfree(model_data);
-}
-
-struct kbase_ipa_model_ops kbase_generic_ipa_model_ops = {
- .name = "generic_ipa_model",
- .init = &kbase_generic_power_model_init,
- .term = &kbase_generic_power_model_term,
- .get_dynamic_power = &model_dynamic_power,
- .get_static_power = &model_static_power,
- .power_to_state = NULL
-};
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