mirror of
https://github.com/rd-stuffs/msm-4.14.git
synced 2025-02-20 11:45:48 +08:00
55f3d4ac2a
Add non psci legacy lpm support. Modify and align changes
for clock event, MPM and cpu hotplug for LPM callback notification.
Remove deprecated scheduler c-state(idle cpu), d-state(idle cluster)
setting from lpm driver.
Snapshot is taken from msm-4.9 kernel version @commit b9ad452666da39.
("soc: qcom: bgrsb: Increase time out for RSB channel opening").
Change-Id: I8958ab4f098cc6d875071e3f100b8b74845e0cfa
Signed-off-by: Haribabu Gattem <haribabu@codeaurora.org>
Signed-off-by: Suresh Kumar Allam <allamsuresh@codeaurora.org>
153 lines
3.9 KiB
C
153 lines
3.9 KiB
C
/* Copyright (c) 2014-2020, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <soc/qcom/pm-legacy.h>
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#include <soc/qcom/spm.h>
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#define NR_LPM_LEVELS 8
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extern bool use_psci;
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struct lpm_lookup_table {
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uint32_t modes;
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const char *mode_name;
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};
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struct power_params {
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uint32_t latency_us; /* Enter + Exit latency */
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uint32_t ss_power; /* Steady state power */
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uint32_t energy_overhead; /* Enter + exit over head */
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uint32_t time_overhead_us; /* Enter + exit overhead */
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uint32_t residencies[NR_LPM_LEVELS];
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uint32_t max_residency;
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};
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struct lpm_cpu_level {
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const char *name;
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enum msm_pm_sleep_mode mode;
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bool use_bc_timer;
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struct power_params pwr;
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unsigned int psci_id;
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bool is_reset;
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bool jtag_save_restore;
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bool hyp_psci;
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int reset_level;
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};
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struct lpm_cpu {
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struct lpm_cpu_level levels[NR_LPM_LEVELS];
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int nlevels;
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unsigned int psci_mode_shift;
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unsigned int psci_mode_mask;
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struct lpm_cluster *parent;
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};
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struct lpm_level_avail {
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bool idle_enabled;
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bool suspend_enabled;
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struct kobject *kobj;
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struct kobj_attribute idle_enabled_attr;
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struct kobj_attribute suspend_enabled_attr;
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void *data;
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int idx;
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bool cpu_node;
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};
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struct lpm_cluster_level {
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const char *level_name;
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int *mode; /* SPM mode to enter */
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int min_child_level;
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struct cpumask num_cpu_votes;
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struct power_params pwr;
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bool notify_rpm;
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bool disable_dynamic_routing;
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bool sync_level;
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bool last_core_only;
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struct lpm_level_avail available;
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unsigned int psci_id;
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bool is_reset;
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int reset_level;
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bool no_cache_flush;
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};
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struct low_power_ops {
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struct msm_spm_device *spm;
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int (*set_mode)(struct low_power_ops *ops, int mode,
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struct lpm_cluster_level *level);
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enum msm_pm_l2_scm_flag tz_flag;
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};
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struct lpm_cluster {
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struct list_head list;
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struct list_head child;
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const char *cluster_name;
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const char **name;
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unsigned long aff_level; /* Affinity level of the node */
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struct low_power_ops *lpm_dev;
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int ndevices;
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struct lpm_cluster_level levels[NR_LPM_LEVELS];
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int nlevels;
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enum msm_pm_l2_scm_flag l2_flag;
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int min_child_level;
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int default_level;
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int last_level;
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struct lpm_cpu *cpu;
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struct cpuidle_driver *drv;
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spinlock_t sync_lock;
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struct cpumask child_cpus;
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struct cpumask num_children_in_sync;
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struct lpm_cluster *parent;
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struct lpm_stats *stats;
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unsigned int psci_mode_shift;
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unsigned int psci_mode_mask;
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bool no_saw_devices;
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};
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int set_l2_mode(struct low_power_ops *ops, int mode,
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struct lpm_cluster_level *level);
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int set_system_mode(struct low_power_ops *ops, int mode,
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struct lpm_cluster_level *level);
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int set_l3_mode(struct low_power_ops *ops, int mode,
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struct lpm_cluster_level *level);
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void lpm_suspend_wake_time(uint64_t wakeup_time);
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struct lpm_cluster *lpm_of_parse_cluster(struct platform_device *pdev);
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void free_cluster_node(struct lpm_cluster *cluster);
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void cluster_dt_walkthrough(struct lpm_cluster *cluster);
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int create_cluster_lvl_nodes(struct lpm_cluster *p, struct kobject *kobj);
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bool lpm_cpu_mode_allow(unsigned int cpu,
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unsigned int mode, bool from_idle);
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bool lpm_cluster_mode_allow(struct lpm_cluster *cluster,
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unsigned int mode, bool from_idle);
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uint32_t *get_per_cpu_max_residency(int cpu);
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extern struct lpm_cluster *lpm_root_node;
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#ifdef CONFIG_SMP
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extern DEFINE_PER_CPU(bool, pending_ipi);
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static inline bool is_IPI_pending(const struct cpumask *mask)
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{
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unsigned int cpu;
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for_each_cpu(cpu, mask) {
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if per_cpu(pending_ipi, cpu)
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return true;
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}
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return false;
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}
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#else
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static inline bool is_IPI_pending(const struct cpumask *mask)
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{
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return false;
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}
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#endif
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