diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/cpumask.h | 8 | ||||
| -rw-r--r-- | include/linux/device.h | 1 | ||||
| -rw-r--r-- | include/linux/hrtimer.h | 6 | ||||
| -rw-r--r-- | include/linux/qcom_tspp.h | 99 | ||||
| -rw-r--r-- | include/linux/qdsp6v2/apr.h | 4 | ||||
| -rw-r--r-- | include/linux/qdsp6v2/audio_notifier.h | 105 | ||||
| -rw-r--r-- | include/linux/qdsp6v2/audio_pdr.h | 101 | ||||
| -rw-r--r-- | include/linux/qdsp6v2/audio_ssr.h | 78 | ||||
| -rw-r--r-- | include/linux/sched.h | 43 | ||||
| -rw-r--r-- | include/linux/tick.h | 12 | ||||
| -rw-r--r-- | include/linux/timer.h | 3 |
11 files changed, 456 insertions, 4 deletions
diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h index 59915ea5373c..0eab4811ee92 100644 --- a/include/linux/cpumask.h +++ b/include/linux/cpumask.h @@ -53,6 +53,7 @@ extern int nr_cpu_ids; * cpu_present_mask - has bit 'cpu' set iff cpu is populated * cpu_online_mask - has bit 'cpu' set iff cpu available to scheduler * cpu_active_mask - has bit 'cpu' set iff cpu available to migration + * cpu_isolated_mask- has bit 'cpu' set iff cpu isolated * * If !CONFIG_HOTPLUG_CPU, present == possible, and active == online. * @@ -89,25 +90,30 @@ extern const struct cpumask *const cpu_possible_mask; extern const struct cpumask *const cpu_online_mask; extern const struct cpumask *const cpu_present_mask; extern const struct cpumask *const cpu_active_mask; +extern const struct cpumask *const cpu_isolated_mask; #if NR_CPUS > 1 #define num_online_cpus() cpumask_weight(cpu_online_mask) #define num_possible_cpus() cpumask_weight(cpu_possible_mask) #define num_present_cpus() cpumask_weight(cpu_present_mask) #define num_active_cpus() cpumask_weight(cpu_active_mask) +#define num_isolated_cpus() cpumask_weight(cpu_isolated_mask) #define cpu_online(cpu) cpumask_test_cpu((cpu), cpu_online_mask) #define cpu_possible(cpu) cpumask_test_cpu((cpu), cpu_possible_mask) #define cpu_present(cpu) cpumask_test_cpu((cpu), cpu_present_mask) #define cpu_active(cpu) cpumask_test_cpu((cpu), cpu_active_mask) +#define cpu_isolated(cpu) cpumask_test_cpu((cpu), cpu_isolated_mask) #else #define num_online_cpus() 1U #define num_possible_cpus() 1U #define num_present_cpus() 1U #define num_active_cpus() 1U +#define num_isolated_cpus() 0U #define cpu_online(cpu) ((cpu) == 0) #define cpu_possible(cpu) ((cpu) == 0) #define cpu_present(cpu) ((cpu) == 0) #define cpu_active(cpu) ((cpu) == 0) +#define cpu_isolated(cpu) ((cpu) == 0) #endif /* verify cpu argument to cpumask_* operators */ @@ -714,12 +720,14 @@ extern const DECLARE_BITMAP(cpu_all_bits, NR_CPUS); #define for_each_possible_cpu(cpu) for_each_cpu((cpu), cpu_possible_mask) #define for_each_online_cpu(cpu) for_each_cpu((cpu), cpu_online_mask) #define for_each_present_cpu(cpu) for_each_cpu((cpu), cpu_present_mask) +#define for_each_isolated_cpu(cpu) for_each_cpu((cpu), cpu_isolated_mask) /* Wrappers for arch boot code to manipulate normally-constant masks */ void set_cpu_possible(unsigned int cpu, bool possible); void set_cpu_present(unsigned int cpu, bool present); void set_cpu_online(unsigned int cpu, bool online); void set_cpu_active(unsigned int cpu, bool active); +void set_cpu_isolated(unsigned int cpu, bool isolated); void init_cpu_present(const struct cpumask *src); void init_cpu_possible(const struct cpumask *src); void init_cpu_online(const struct cpumask *src); diff --git a/include/linux/device.h b/include/linux/device.h index 9f27351c6b9c..4b4e2d5ce6e7 100644 --- a/include/linux/device.h +++ b/include/linux/device.h @@ -1023,6 +1023,7 @@ static inline bool device_supports_offline(struct device *dev) extern void lock_device_hotplug(void); extern void unlock_device_hotplug(void); extern int lock_device_hotplug_sysfs(void); +extern void lock_device_hotplug_assert(void); extern int device_offline(struct device *dev); extern int device_online(struct device *dev); extern void set_primary_fwnode(struct device *dev, struct fwnode_handle *fwnode); diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h index 2ead22dd74a0..952adcacc4cf 100644 --- a/include/linux/hrtimer.h +++ b/include/linux/hrtimer.h @@ -53,6 +53,7 @@ enum hrtimer_restart { * * 0x00 inactive * 0x01 enqueued into rbtree + * 0x02 timer is pinned to a cpu * * The callback state is not part of the timer->state because clearing it would * mean touching the timer after the callback, this makes it impossible to free @@ -72,6 +73,8 @@ enum hrtimer_restart { */ #define HRTIMER_STATE_INACTIVE 0x00 #define HRTIMER_STATE_ENQUEUED 0x01 +#define HRTIMER_PINNED_SHIFT 1 +#define HRTIMER_STATE_PINNED (1 << HRTIMER_PINNED_SHIFT) /** * struct hrtimer - the basic hrtimer structure @@ -357,6 +360,9 @@ DECLARE_PER_CPU(struct tick_device, tick_cpu_device); /* Exported timer functions: */ +/* To be used from cpusets, only */ +extern void hrtimer_quiesce_cpu(void *cpup); + /* Initialize timers: */ extern void hrtimer_init(struct hrtimer *timer, clockid_t which_clock, enum hrtimer_mode mode); diff --git a/include/linux/qcom_tspp.h b/include/linux/qcom_tspp.h new file mode 100644 index 000000000000..28e6695fb057 --- /dev/null +++ b/include/linux/qcom_tspp.h @@ -0,0 +1,99 @@ +/* Copyright (c) 2012-2016, 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 _MSM_TSPP_H_ +#define _MSM_TSPP_H_ + +struct tspp_data_descriptor { + void *virt_base; /* logical address of the actual data */ + phys_addr_t phys_base; /* physical address of the actual data */ + u32 size; /* size of buffer in bytes */ + int id; /* unique identifier */ + void *user; /* user-defined data */ +}; + +enum tspp_key_parity { + TSPP_KEY_PARITY_EVEN, + TSPP_KEY_PARITY_ODD +}; + +struct tspp_key { + enum tspp_key_parity parity; + int lsb; + int msb; +}; + +enum tspp_source { + TSPP_SOURCE_TSIF0, + TSPP_SOURCE_TSIF1, + TSPP_SOURCE_MEM, + TSPP_SOURCE_NONE = -1 +}; + +enum tspp_mode { + TSPP_MODE_DISABLED, + TSPP_MODE_PES, + TSPP_MODE_RAW, + TSPP_MODE_RAW_NO_SUFFIX +}; + +enum tspp_tsif_mode { + TSPP_TSIF_MODE_LOOPBACK, /* loopback mode */ + TSPP_TSIF_MODE_1, /* without sync */ + TSPP_TSIF_MODE_2 /* with sync signal */ +}; + +struct tspp_filter { + int pid; + int mask; + enum tspp_mode mode; + unsigned int priority; /* 0 - 15 */ + int decrypt; + enum tspp_source source; +}; + +struct tspp_select_source { + enum tspp_source source; + enum tspp_tsif_mode mode; + int clk_inverse; + int data_inverse; + int sync_inverse; + int enable_inverse; +}; + +typedef void (tspp_notifier)(int channel_id, void *user); +typedef void* (tspp_allocator)(int channel_id, u32 size, + phys_addr_t *phys_base, void *user); +typedef void (tspp_memfree)(int channel_id, u32 size, + void *virt_base, phys_addr_t phys_base, void *user); + +/* Kernel API functions */ +int tspp_open_stream(u32 dev, u32 channel_id, + struct tspp_select_source *source); +int tspp_close_stream(u32 dev, u32 channel_id); +int tspp_open_channel(u32 dev, u32 channel_id); +int tspp_close_channel(u32 dev, u32 channel_id); +int tspp_get_ref_clk_counter(u32 dev, + enum tspp_source source, u32 *tcr_counter); +int tspp_add_filter(u32 dev, u32 channel_id, struct tspp_filter *filter); +int tspp_remove_filter(u32 dev, u32 channel_id, struct tspp_filter *filter); +int tspp_set_key(u32 dev, u32 channel_id, struct tspp_key *key); +int tspp_register_notification(u32 dev, u32 channel_id, tspp_notifier *notify, + void *data, u32 timer_ms); +int tspp_unregister_notification(u32 dev, u32 channel_id); +const struct tspp_data_descriptor *tspp_get_buffer(u32 dev, u32 channel_id); +int tspp_release_buffer(u32 dev, u32 channel_id, u32 descriptor_id); +int tspp_allocate_buffers(u32 dev, u32 channel_id, u32 count, + u32 size, u32 int_freq, tspp_allocator *alloc, + tspp_memfree *memfree, void *user); + +#endif /* _MSM_TSPP_H_ */ diff --git a/include/linux/qdsp6v2/apr.h b/include/linux/qdsp6v2/apr.h index 84c822234e00..29deb3ca5ac7 100644 --- a/include/linux/qdsp6v2/apr.h +++ b/include/linux/qdsp6v2/apr.h @@ -172,8 +172,8 @@ inline int apr_fill_hdr(void *handle, uint32_t *buf, uint16_t src_port, int apr_send_pkt(void *handle, uint32_t *buf); int apr_deregister(void *handle); -void subsys_notif_register(struct notifier_block *mod_notif, - struct notifier_block *lp_notif); +void subsys_notif_register(char *client_name, int domain, + struct notifier_block *nb); int apr_get_dest_id(char *dest); uint16_t apr_get_data_src(struct apr_hdr *hdr); void change_q6_state(int state); diff --git a/include/linux/qdsp6v2/audio_notifier.h b/include/linux/qdsp6v2/audio_notifier.h new file mode 100644 index 000000000000..3587b49a05c6 --- /dev/null +++ b/include/linux/qdsp6v2/audio_notifier.h @@ -0,0 +1,105 @@ +/* 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 __AUDIO_NOTIFIER_H_ +#define __AUDIO_NOTIFIER_H_ + +/* State of the notifier domain */ +enum { + AUDIO_NOTIFIER_SERVICE_DOWN, + AUDIO_NOTIFIER_SERVICE_UP +}; + +/* Service order determines connection priority + * Highest number connected first + */ +enum { + AUDIO_NOTIFIER_SSR_SERVICE, + AUDIO_NOTIFIER_PDR_SERVICE, + AUDIO_NOTIFIER_MAX_SERVICES +}; + +enum { + AUDIO_NOTIFIER_ADSP_DOMAIN, + AUDIO_NOTIFIER_MODEM_DOMAIN, + AUDIO_NOTIFIER_MAX_DOMAINS +}; + +/* Structure populated in void *data of nb function + * callback used for audio_notifier_register + */ +struct audio_notifier_cb_data { + int service; + int domain; +}; + +#ifdef CONFIG_MSM_QDSP6_NOTIFIER + +/* + * Use audio_notifier_register to register any audio + * clients who need to be notified of a remote process. + * This API will determine and register the client with + * the best available subsystem (SSR or PDR) for that + * domain (Adsp or Modem). When an event is sent from that + * domain the notifier block callback function will be called. + * + * client_name - A unique user name defined by the client. + * If the same name is used for multiple calls each will + * be tracked & called back separately and a single call + * to deregister will delete them all. + * domain - Domain the client wants to get events from. + * AUDIO_NOTIFIER_ADSP_DOMAIN + * AUDIO_NOTIFIER_MODEM_DOMAIN + * *nb - Pointer to a notifier block. Provide a callback function + * to be notified of an even on that domain. + * + * nb_func(struct notifier_block *this, unsigned long opcode, void *data) + * this - pointer to own nb + * opcode - event from registered domain + * AUDIO_NOTIFIER_SERVICE_DOWN + * AUDIO_NOTIFIER_SERVICE_UP + * *data - pointer to struct audio_notifier_cb_data + * + * Returns: Success: 0 + * Error: -# + */ +int audio_notifier_register(char *client_name, int domain, + struct notifier_block *nb); + +/* + * Use audio_notifier_deregister to deregister the clients from + * all domains registered using audio_notifier_register that + * match the client name. + * + * client_name - Unique user name used in audio_notifier_register. + * Returns: Success: 0 + * Error: -# + */ +int audio_notifier_deregister(char *client_name); + +#else + +static inline int audio_notifier_register(char *client_name, int domain, + struct notifier_block *nb) +{ + return -ENODEV; +} + +static inline int audio_notifier_deregister(char *client_name) +{ + return 0; +} + +#endif /* CONFIG_MSM_QDSP6_PDR */ + +#endif diff --git a/include/linux/qdsp6v2/audio_pdr.h b/include/linux/qdsp6v2/audio_pdr.h new file mode 100644 index 000000000000..b8eb1be3ee64 --- /dev/null +++ b/include/linux/qdsp6v2/audio_pdr.h @@ -0,0 +1,101 @@ +/* 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 __AUDIO_PDR_H_ +#define __AUDIO_PDR_H_ + +enum { + AUDIO_PDR_DOMAIN_ADSP, + AUDIO_PDR_DOMAIN_MAX +}; + +enum { + AUDIO_PDR_FRAMEWORK_DOWN, + AUDIO_PDR_FRAMEWORK_UP +}; + +#ifdef CONFIG_MSM_QDSP6_PDR + +/* + * Use audio_pdr_register to register with the PDR subsystem this + * should be done before module late init otherwise notification + * of the AUDIO_PDR_FRAMEWORK_UP cannot be guaranteed. + * + * *nb - Pointer to a notifier block. Provide a callback function + * to be notified once the PDR framework has been initialized. + * Callback will receive either the AUDIO_PDR_FRAMEWORK_DOWN + * or AUDIO_PDR_FRAMEWORK_UP ioctl depending on the state of + * the PDR framework. + * + * Returns: Success: 0 + * Failure: Error code + */ +int audio_pdr_register(struct notifier_block *nb); + +/* + * Use audio_pdr_service_register to register with a PDR service + * Function should be called after nb callback registered with + * audio_pdr_register has been called back with the + * AUDIO_PDR_FRAMEWORK_UP ioctl. + * + * domain_id - Domain to use, example: AUDIO_PDR_ADSP + * *nb - Pointer to a notifier block. Provide a callback function + * that will be notified of the state of the domain + * requested. The ioctls received by the callback are + * defined in service-notifier.h. + * + * Returns: Success: Client handle + * Failure: Pointer error code + */ +void *audio_pdr_service_register(int domain_id, + struct notifier_block *nb, int *curr_state); + + /* + * Use audio_pdr_service_deregister to deregister with a PDR + * service that was registered using the audio_pdr_service_register + * API. + * + * *service_handle - Service handle returned by audio_pdr_service_register + * *nb - Pointer to the notifier block. Used in the call to + * audio_pdr_service_register. + * + * Returns: Success: Client handle + * Failure: Error code + */ +int audio_pdr_service_deregister(void *service_handle, + struct notifier_block *nb); + +#else + +static inline int audio_pdr_register(struct notifier_block *nb) +{ + return -ENODEV; +} + + +static inline void *audio_pdr_service_register(int domain_id, + struct notifier_block *nb, + int *curr_state) +{ + return NULL; +} + +static inline int audio_pdr_service_deregister(void *service_handle, + struct notifier_block *nb) +{ + return 0; +} + +#endif /* CONFIG_MSM_QDSP6_PDR */ + +#endif diff --git a/include/linux/qdsp6v2/audio_ssr.h b/include/linux/qdsp6v2/audio_ssr.h new file mode 100644 index 000000000000..a807021ba7ca --- /dev/null +++ b/include/linux/qdsp6v2/audio_ssr.h @@ -0,0 +1,78 @@ +/* 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 __AUDIO_SSR_H_ +#define __AUDIO_SSR_H_ + +enum { + AUDIO_SSR_DOMAIN_ADSP, + AUDIO_SSR_DOMAIN_MODEM, + AUDIO_SSR_DOMAIN_MAX +}; + +#ifdef CONFIG_MSM_QDSP6_SSR + +/* + * Use audio_ssr_register to register with the SSR subsystem + * + * domain_id - Service to use, example: AUDIO_SSR_DOMAIN_ADSP + * *nb - Pointer to a notifier block. Provide a callback function + * to be notified of an event for that service. The ioctls + * used by the callback are defined in subsystem_notif.h. + * + * Returns: Success: Client handle + * Failure: Pointer error code + */ +void *audio_ssr_register(int domain_id, struct notifier_block *nb); + +/* + * Use audio_ssr_deregister to register with the SSR subsystem + * + * handle - Handle received from audio_ssr_register + * *nb - Pointer to a notifier block. Callback function + * Used from audio_ssr_register. + * + * Returns: Success: 0 + * Failure: Error code + */ +int audio_ssr_deregister(void *handle, struct notifier_block *nb); + + +/* + * Use audio_ssr_send_nmi to force a RAM dump on ADSP + * down event. + * + * *ssr_cb_data - *data received from notifier callback + */ +void audio_ssr_send_nmi(void *ssr_cb_data); + +#else + +static inline void *audio_ssr_register(int domain_id, + struct notifier_block *nb) +{ + return NULL; +} + +static inline int audio_ssr_deregister(void *handle, struct notifier_block *nb) +{ + return 0; +} + +static inline void audio_ssr_send_nmi(void *ssr_cb_data) +{ +} + +#endif /* CONFIG_MSM_QDSP6_SSR */ + +#endif diff --git a/include/linux/sched.h b/include/linux/sched.h index 4701e0403167..a395d8a9ff73 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -363,6 +363,41 @@ extern cpumask_var_t cpu_isolated_map; extern int runqueue_is_locked(int cpu); +#ifdef CONFIG_HOTPLUG_CPU +extern int sched_isolate_count(const cpumask_t *mask, bool include_offline); +extern int sched_isolate_cpu(int cpu); +extern int sched_unisolate_cpu(int cpu); +extern int sched_unisolate_cpu_unlocked(int cpu); +#else +static inline int sched_isolate_count(const cpumask_t *mask, + bool include_offline) +{ + cpumask_t count_mask; + + if (include_offline) + cpumask_andnot(&count_mask, mask, cpu_online_mask); + else + return 0; + + return cpumask_weight(&count_mask); +} + +static inline int sched_isolate_cpu(int cpu) +{ + return 0; +} + +static inline int sched_unisolate_cpu(int cpu) +{ + return 0; +} + +static inline int sched_unisolate_cpu_unlocked(int cpu) +{ + return 0; +} +#endif + #if defined(CONFIG_SMP) && defined(CONFIG_NO_HZ_COMMON) extern void nohz_balance_enter_idle(int cpu); extern void set_cpu_sd_state_idle(void); @@ -409,6 +444,8 @@ extern int proc_dowatchdog_thresh(struct ctl_table *table, int write, extern unsigned int softlockup_panic; extern unsigned int hardlockup_panic; void lockup_detector_init(void); +extern void watchdog_enable(unsigned int cpu); +extern void watchdog_disable(unsigned int cpu); #else static inline void touch_softlockup_watchdog_sched(void) { @@ -425,6 +462,12 @@ static inline void touch_all_softlockup_watchdogs(void) static inline void lockup_detector_init(void) { } +static inline void watchdog_enable(unsigned int cpu) +{ +} +static inline void watchdog_disable(unsigned int cpu) +{ +} #endif #ifdef CONFIG_DETECT_HUNG_TASK diff --git a/include/linux/tick.h b/include/linux/tick.h index 5bf3ddade19c..1732697ea419 100644 --- a/include/linux/tick.h +++ b/include/linux/tick.h @@ -161,7 +161,15 @@ extern void __tick_nohz_task_switch(void); #else static inline int housekeeping_any_cpu(void) { - return smp_processor_id(); + cpumask_t available; + int cpu; + + cpumask_andnot(&available, cpu_online_mask, cpu_isolated_mask); + cpu = cpumask_any(&available); + if (cpu >= nr_cpu_ids) + cpu = smp_processor_id(); + + return cpu; } static inline bool tick_nohz_full_enabled(void) { return false; } static inline bool tick_nohz_full_cpu(int cpu) { return false; } @@ -187,7 +195,7 @@ static inline bool is_housekeeping_cpu(int cpu) if (tick_nohz_full_enabled()) return cpumask_test_cpu(cpu, housekeeping_mask); #endif - return true; + return !cpu_isolated(cpu); } static inline void housekeeping_affine(struct task_struct *t) diff --git a/include/linux/timer.h b/include/linux/timer.h index 7a5602e19e87..b1617e8932b2 100644 --- a/include/linux/timer.h +++ b/include/linux/timer.h @@ -182,6 +182,9 @@ extern void set_timer_slack(struct timer_list *time, int slack_hz); */ #define NEXT_TIMER_MAX_DELTA ((1UL << 30) - 1) +/* To be used from cpusets, only */ +extern void timer_quiesce_cpu(void *cpup); + /* * Timer-statistics info: */ |