| Viresh Kumar | 8a67f0e | 2013-04-01 12:57:49 +0000 | [diff] [blame] | 1 | /* |
| 2 | * ARM big.LITTLE platform's CPUFreq header file |
| 3 | * |
| 4 | * Copyright (C) 2013 ARM Ltd. |
| 5 | * Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com> |
| 6 | * |
| 7 | * Copyright (C) 2013 Linaro. |
| 8 | * Viresh Kumar <viresh.kumar@linaro.org> |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or modify |
| 11 | * it under the terms of the GNU General Public License version 2 as |
| 12 | * published by the Free Software Foundation. |
| 13 | * |
| 14 | * This program is distributed "as is" WITHOUT ANY WARRANTY of any |
| 15 | * kind, whether express or implied; without even the implied warranty |
| 16 | * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | * GNU General Public License for more details. |
| 18 | */ |
| 19 | #ifndef CPUFREQ_ARM_BIG_LITTLE_H |
| 20 | #define CPUFREQ_ARM_BIG_LITTLE_H |
| 21 | |
| 22 | #include <linux/cpufreq.h> |
| 23 | #include <linux/device.h> |
| 24 | #include <linux/types.h> |
| 25 | |
| 26 | struct cpufreq_arm_bL_ops { |
| 27 | char name[CPUFREQ_NAME_LEN]; |
| 28 | int (*get_transition_latency)(struct device *cpu_dev); |
| 29 | |
| 30 | /* |
| 31 | * This must set opp table for cpu_dev in a similar way as done by |
| 32 | * of_init_opp_table(). |
| 33 | */ |
| 34 | int (*init_opp_table)(struct device *cpu_dev); |
| 35 | }; |
| 36 | |
| Viresh Kumar | 4521adf | 2013-04-29 13:24:47 +0000 | [diff] [blame] | 37 | static inline int cpu_to_cluster(int cpu) |
| 38 | { |
| 39 | return topology_physical_package_id(cpu); |
| 40 | } |
| 41 | |
| Viresh Kumar | 8a67f0e | 2013-04-01 12:57:49 +0000 | [diff] [blame] | 42 | int bL_cpufreq_register(struct cpufreq_arm_bL_ops *ops); |
| 43 | void bL_cpufreq_unregister(struct cpufreq_arm_bL_ops *ops); |
| 44 | |
| 45 | #endif /* CPUFREQ_ARM_BIG_LITTLE_H */ |