| /* |
| * |
| * (C) COPYRIGHT 2015, 2017 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. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, you can access it online at |
| * http://www.gnu.org/licenses/gpl-2.0.html. |
| * |
| * SPDX-License-Identifier: GPL-2.0 |
| * |
| */ |
| |
| |
| #ifdef CONFIG_DEVFREQ_THERMAL |
| #include <linux/version.h> |
| #include <linux/devfreq_cooling.h> |
| #include <linux/thermal.h> |
| |
| #define FALLBACK_STATIC_TEMPERATURE 55000 |
| |
| static unsigned long t83x_static_power(unsigned long voltage) |
| { |
| #if 0 |
| struct thermal_zone_device *tz; |
| unsigned long temperature, temp; |
| unsigned long temp_squared, temp_cubed, temp_scaling_factor; |
| const unsigned long coefficient = (410UL << 20) / (729000000UL >> 10); |
| const unsigned long voltage_cubed = (voltage * voltage * voltage) >> 10; |
| |
| tz = thermal_zone_get_zone_by_name("gpu"); |
| if (IS_ERR(tz)) { |
| pr_warn_ratelimited("Error getting gpu thermal zone (%ld), not yet ready?\n", |
| PTR_ERR(tz)); |
| temperature = FALLBACK_STATIC_TEMPERATURE; |
| } else { |
| int ret; |
| |
| ret = tz->ops->get_temp(tz, &temperature); |
| if (ret) { |
| pr_warn_ratelimited("Error reading temperature for gpu thermal zone: %d\n", |
| ret); |
| 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 = |
| (2 * temp_cubed) |
| - (80 * temp_squared) |
| + (4700 * temp) |
| + 32000; |
| |
| return (((coefficient * voltage_cubed) >> 20) |
| * temp_scaling_factor) |
| / 1000000; |
| #else |
| return 0; |
| #endif |
| } |
| |
| static unsigned long t83x_dynamic_power(unsigned long freq, |
| unsigned long voltage) |
| { |
| /* The inputs: freq (f) is in Hz, and voltage (v) in mV. |
| * The coefficient (c) is in mW/(MHz mV mV). |
| * |
| * This function calculates the dynamic power after this formula: |
| * Pdyn (mW) = c (mW/(MHz*mV*mV)) * v (mV) * v (mV) * f (MHz) |
| */ |
| const unsigned long v2 = (voltage * voltage) / 1000; /* m*(V*V) */ |
| const unsigned long f_mhz = freq / 1000000; /* MHz */ |
| const unsigned long coefficient = 3600; /* mW/(MHz*mV*mV) */ |
| |
| return (coefficient * v2 * f_mhz) / 1000000; /* mW */ |
| } |
| #if (LINUX_VERSION_CODE < KERNEL_VERSION(4, 4, 16)) |
| struct devfreq_cooling_ops t83x_model_ops = { |
| #else |
| struct devfreq_cooling_power t83x_model_ops = { |
| #endif |
| .get_static_power = t83x_static_power, |
| .get_dynamic_power = t83x_dynamic_power, |
| }; |
| |
| #endif |
| |
| #include <mali_kbase_config.h> |
| |
| int kbase_platform_early_init(void) |
| { |
| /* Nothing needed at this stage */ |
| return 0; |
| } |
| |
| static struct kbase_platform_config dummy_platform_config; |
| |
| struct kbase_platform_config *kbase_get_platform_config(void) |
| { |
| return &dummy_platform_config; |
| } |
| |
| #ifndef CONFIG_OF |
| int kbase_platform_register(void) |
| { |
| return 0; |
| } |
| |
| void kbase_platform_unregister(void) |
| { |
| } |
| #endif |