diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/dt-bindings/msm/pm.h | 25 | ||||
| -rw-r--r-- | include/soc/qcom/pm.h | 44 |
2 files changed, 68 insertions, 1 deletions
diff --git a/include/dt-bindings/msm/pm.h b/include/dt-bindings/msm/pm.h new file mode 100644 index 000000000000..50987a08d807 --- /dev/null +++ b/include/dt-bindings/msm/pm.h @@ -0,0 +1,25 @@ +/* Copyright (c) 2016, The Linux Foundation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 and + * only version 2 as published by the Free Software Foundation. + * + * 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. + */ + +#ifndef __DT_MSM_PM_H__ +#define __DT_MSM_PM_H__ + +#define LPM_RESET_LVL_NONE 0 +#define LPM_RESET_LVL_RET 1 +#define LPM_RESET_LVL_GDHS 2 +#define LPM_RESET_LVL_PC 3 + +#define LPM_AFF_LVL_CPU 0 +#define LPM_AFF_LVL_L2 1 +#define LPM_AFF_LVL_CCI 2 + +#endif diff --git a/include/soc/qcom/pm.h b/include/soc/qcom/pm.h index e7c7909e39f5..ea19c2562f66 100644 --- a/include/soc/qcom/pm.h +++ b/include/soc/qcom/pm.h @@ -1,6 +1,6 @@ /* * Copyright (C) 2007 Google, Inc. - * Copyright (c) 2009-2015, The Linux Foundation. All rights reserved. + * Copyright (c) 2009-2016, The Linux Foundation. All rights reserved. * Author: San Mehat <san@android.com> * * This software is licensed under the terms of the GNU General Public @@ -21,6 +21,7 @@ #include <linux/cpuidle.h> #include <asm/smp_plat.h> #include <asm/barrier.h> +#include <dt-bindings/msm/pm.h> #if !defined(CONFIG_SMP) #define msm_secondary_startup NULL @@ -62,6 +63,12 @@ struct msm_pm_sleep_status_data { uint32_t mask; }; +struct latency_level { + int affinity_level; + int reset_level; + const char *level_name; +}; + /** * lpm_cpu_pre_pc_cb(): API to get the L2 flag to pass to TZ * @@ -115,12 +122,41 @@ static inline void msm_arch_idle(void) } #ifdef CONFIG_MSM_PM + void msm_pm_set_rpm_wakeup_irq(unsigned int irq); int msm_pm_wait_cpu_shutdown(unsigned int cpu); int __init msm_pm_sleep_status_init(void); void lpm_cpu_hotplug_enter(unsigned int cpu); s32 msm_cpuidle_get_deep_idle_latency(void); int msm_pm_collapse(unsigned long unused); + +/** + * lpm_get_latency() - API to get latency for a low power mode + * @latency_level: pointer to structure with below elements + * affinity_level: The level (CPU/L2/CCI etc.) for which the + * latency is required. + * LPM_AFF_LVL_CPU : CPU level + * LPM_AFF_LVL_L2 : L2 level + * LPM_AFF_LVL_CCI : CCI level + * reset_level: Can be passed "LPM_RESET_LVL_GDHS" for + * low power mode with control logic power collapse or + * "LPM_RESET_LVL_PC" for low power mode with control and + * memory logic power collapse or "LPM_RESET_LVL_RET" for + * retention mode. + * level_name: Pointer to the cluster name for which the latency + * is required or NULL if the minimum value out of all the + * clusters is to be returned. For CPU level, the name of the + * L2 cluster to be passed. For CCI it has no effect. + * @latency: address to get the latency value. + * + * latency value will be for the particular cluster or the minimum + * value out of all the clusters at the particular affinity_level + * and reset_level. + * + * Return: 0 for success; Error number for failure. + */ +int lpm_get_latency(struct latency_level *level, uint32_t *latency); + #else static inline void msm_pm_set_rpm_wakeup_irq(unsigned int irq) {} static inline int msm_pm_wait_cpu_shutdown(unsigned int cpu) { return 0; } @@ -133,6 +169,12 @@ static inline void lpm_cpu_hotplug_enter(unsigned int cpu) static inline s32 msm_cpuidle_get_deep_idle_latency(void) { return 0; } #define msm_pm_collapse NULL + +static inline int lpm_get_latency(struct latency_level *level, + uint32_t *latency) +{ + return 0; +} #endif #ifdef CONFIG_HOTPLUG_CPU |