Loading drivers/soc/qcom/glink_private.h +139 −10 Original line number Diff line number Diff line Loading @@ -350,16 +350,6 @@ int glink_get_channel_id_for_handle(void *handle); */ char *glink_get_channel_name_for_handle(void *handle); /** * glink_ssr_wait_cleanup_done() - Get the value of the * notifications_successful flag in glink_ssr. * @timeout_multiplier: timeout multiplier for waiting on all processors * * * Return: True if cleanup_done received from all processors, false otherwise */ bool glink_ssr_wait_cleanup_done(unsigned ssr_timeout_multiplier); /** * glink_debugfs_init() - initialize glink debugfs directory * Loading Loading @@ -629,6 +619,135 @@ int glink_get_ch_rintents_queued(struct channel_ctx *ch_ctx); */ void glink_get_ch_intent_info(struct channel_ctx *ch_ctx, struct glink_ch_intent_info *ch_ctx_i); /** * enum ssr_command - G-Link SSR protocol commands */ enum ssr_command { GLINK_SSR_DO_CLEANUP, GLINK_SSR_CLEANUP_DONE, }; /** * struct subsys_info - Subsystem info structure * ssr_name: name of the subsystem recognized by the SSR framework * edge: name of the G-Link edge * xprt: name of the G-Link transport * handle: glink_ssr channel used for this subsystem * link_info: Transport info used in link state callback registration * cb_data: Private callback data structure for notification functions * subsystem_list_node: used to chain this structure in a list of subsystem * info structures * notify_list: list of subsys_info_leaf structures, containing the subsystems * to notify if this subsystem undergoes SSR * notify_list_len: length of notify_list */ struct subsys_info { const char *ssr_name; const char *edge; const char *xprt; void *handle; struct glink_link_info *link_info; struct ssr_notify_data *cb_data; struct list_head subsystem_list_node; struct list_head notify_list; int notify_list_len; bool link_up; }; /** * struct subsys_info_leaf - Subsystem info leaf structure (a subsystem on the * notify list of a subsys_info structure) * ssr_name: Name of the subsystem recognized by the SSR framework * edge: Name of the G-Link edge * xprt: Name of the G-Link transport * restarted: Indicates whether a restart has been triggered for this edge * cb_data: Private callback data structure for notification functions * notify_list_node: used to chain this structure in the notify list */ struct subsys_info_leaf { const char *ssr_name; const char *edge; const char *xprt; bool restarted; struct ssr_notify_data *cb_data; struct list_head notify_list_node; }; /** * struct do_cleanup_msg - The data structure for an SSR do_cleanup message * version: The G-Link SSR protocol version * command: The G-Link SSR command - do_cleanup * seq_num: Sequence number * name_len: Length of the name of the subsystem being restarted * name: G-Link edge name of the subsystem being restarted */ struct do_cleanup_msg { uint32_t version; uint32_t command; uint32_t seq_num; uint32_t name_len; char name[32]; }; /** * struct cleanup_done_msg - The data structure for an SSR cleanup_done message * version: The G-Link SSR protocol version * response: The G-Link SSR response to a do_cleanup command, cleanup_done * seq_num: Sequence number */ struct cleanup_done_msg { uint32_t version; uint32_t response; uint32_t seq_num; }; /** * struct ssr_notify_data - Contains private data used for client notifications * from G-Link. * tx_done: Indicates whether or not the tx_done notification has been * received. * event: The state notification event received. * responded: Indicates whether or not a cleanup_done response was received. * version: G-Link SSR protocol version * seq_num: G-Link SSR protocol sequence number */ struct ssr_notify_data { bool tx_done; unsigned event; bool responded; uint32_t version; uint32_t seq_num; }; /** * get_info_for_subsystem() - Retrieve information about a subsystem from the * global subsystem_info_list * @subsystem: The name of the subsystem recognized by the SSR * framework * * Return: subsys_info structure containing info for the requested subsystem; * NULL if no structure can be found for the requested subsystem */ struct subsys_info *get_info_for_subsystem(const char *subsystem); /** * get_info_for_edge() - Retrieve information about a subsystem from the * global subsystem_info_list * @edge: The name of the edge recognized by G-Link * * Return: subsys_info structure containing info for the requested subsystem; * NULL if no structure can be found for the requested subsystem */ struct subsys_info *get_info_for_edge(const char *edge); /** * glink_ssr_get_seq_num() - Get the current SSR sequence number * * Return: The current SSR sequence number */ uint32_t glink_ssr_get_seq_num(void); /* * glink_ssr() - SSR cleanup function. * Loading @@ -636,6 +755,16 @@ void glink_get_ch_intent_info(struct channel_ctx *ch_ctx, */ int glink_ssr(const char *subsystem); /** * glink_ssr_wait_cleanup_done() - Get the value of the * notifications_successful flag in glink_ssr. * @timeout_multiplier: timeout multiplier for waiting on all processors * * * Return: True if cleanup_done received from all processors, false otherwise */ bool glink_ssr_wait_cleanup_done(unsigned ssr_timeout_multiplier); struct channel_lcid { struct list_head list_node; uint32_t lcid; Loading drivers/soc/qcom/glink_ssr.c +15 −105 Original line number Diff line number Diff line Loading @@ -37,14 +37,6 @@ static bool notifications_successful; /* Completion for setting notifications_successful */ struct completion notifications_successful_complete; /** * enum ssr_command - G-Link SSR protocol commands */ enum ssr_command { GLINK_SSR_DO_CLEANUP, GLINK_SSR_CLEANUP_DONE, }; /** * struct restart_notifier_block - restart notifier wrapper structure * subsystem: the name of the subsystem as recognized by the SSR framework Loading @@ -55,98 +47,6 @@ struct restart_notifier_block { struct notifier_block nb; }; /** * struct subsys_info - Subsystem info structure * ssr_name: name of the subsystem recognized by the SSR framework * edge: name of the G-Link edge * xprt: name of the G-Link transport * handle: glink_ssr channel used for this subsystem * link_info: Transport info used in link state callback registration * cb_data: Private callback data structure for notification functions * subsystem_list_node: used to chain this structure in a list of subsystem * info structures * notify_list: list of subsys_info_leaf structures, containing the subsystems * to notify if this subsystem undergoes SSR * notify_list_len: length of notify_list */ struct subsys_info { const char *ssr_name; const char *edge; const char *xprt; void *handle; struct glink_link_info *link_info; struct ssr_notify_data *cb_data; struct list_head subsystem_list_node; struct list_head notify_list; int notify_list_len; bool link_up; }; /** * struct subsys_info_leaf - Subsystem info leaf structure (a subsystem on the * notify list of a subsys_info structure) * ssr_name: Name of the subsystem recognized by the SSR framework * edge: Name of the G-Link edge * xprt: Name of the G-Link transport * restarted: Indicates whether a restart has been triggered for this edge * cb_data: Private callback data structure for notification functions * notify_list_node: used to chain this structure in the notify list */ struct subsys_info_leaf { const char *ssr_name; const char *edge; const char *xprt; bool restarted; struct ssr_notify_data *cb_data; struct list_head notify_list_node; }; /** * struct do_cleanup_msg - The data structure for an SSR do_cleanup message * version: The G-Link SSR protocol version * command: The G-Link SSR command - do_cleanup * seq_num: Sequence number * name_len: Length of the name of the subsystem being restarted * name: G-Link edge name of the subsystem being restarted */ struct do_cleanup_msg { uint32_t version; uint32_t command; uint32_t seq_num; uint32_t name_len; char name[GLINK_NAME_SIZE]; }; /** * struct cleanup_done_msg - The data structure for an SSR cleanup_done message * version: The G-Link SSR protocol version * response: The G-Link SSR response to a do_cleanup command, cleanup_done * seq_num: Sequence number */ struct cleanup_done_msg { uint32_t version; uint32_t response; uint32_t seq_num; }; /** * struct ssr_notify_data - Contains private data used for client notifications * from G-Link. * tx_done: Indicates whether or not the tx_done notification has been * received. * event: The state notification event received. * responded: Indicates whether or not a cleanup_done response was received. * version: G-Link SSR protocol version * seq_num: G-Link SSR protocol sequence number */ struct ssr_notify_data { bool tx_done; unsigned event; bool responded; uint32_t version; uint32_t seq_num; }; /** * struct configure_and_open_ch_work - Work structure for used for opening * glink_ssr channels Loading Loading @@ -179,13 +79,10 @@ static int glink_ssr_restart_notifier_cb(struct notifier_block *this, unsigned long code, void *data); static void delete_ss_info_notify_list(struct subsys_info *ss_info); static struct subsys_info *get_info_for_subsystem(const char *subsystem); static struct subsys_info *get_info_for_edge(const char *edge); static int notify_for_subsystem(struct subsys_info *ss_info); static int configure_and_open_channel(struct subsys_info *ss_info); static struct workqueue_struct *glink_ssr_wq; static LIST_HEAD(subsystem_list); static atomic_t responses_remaining = ATOMIC_INIT(0); static wait_queue_head_t waitqueue; Loading Loading @@ -667,7 +564,7 @@ static int configure_and_open_channel(struct subsys_info *ss_info) * Return: subsys_info structure containing info for the requested subsystem; * NULL if no structure can be found for the requested subsystem */ static struct subsys_info *get_info_for_subsystem(const char *subsystem) struct subsys_info *get_info_for_subsystem(const char *subsystem) { struct subsys_info *ss_info_entry; Loading @@ -679,6 +576,7 @@ static struct subsys_info *get_info_for_subsystem(const char *subsystem) return NULL; } EXPORT_SYMBOL(get_info_for_subsystem); /** * get_info_for_edge() - Retrieve information about a subsystem from the Loading @@ -688,7 +586,7 @@ static struct subsys_info *get_info_for_subsystem(const char *subsystem) * Return: subsys_info structure containing info for the requested subsystem; * NULL if no structure can be found for the requested subsystem */ static struct subsys_info *get_info_for_edge(const char *edge) struct subsys_info *get_info_for_edge(const char *edge) { struct subsys_info *ss_info_entry; Loading @@ -700,6 +598,18 @@ static struct subsys_info *get_info_for_edge(const char *edge) return NULL; } EXPORT_SYMBOL(get_info_for_edge); /** * glink_ssr_get_seq_num() - Get the current SSR sequence number * * Return: The current SSR sequence number */ uint32_t glink_ssr_get_seq_num(void) { return sequence_number; } EXPORT_SYMBOL(glink_ssr_get_seq_num); /** * delete_ss_info_notify_list() - Delete the notify list for a subsystem Loading Loading
drivers/soc/qcom/glink_private.h +139 −10 Original line number Diff line number Diff line Loading @@ -350,16 +350,6 @@ int glink_get_channel_id_for_handle(void *handle); */ char *glink_get_channel_name_for_handle(void *handle); /** * glink_ssr_wait_cleanup_done() - Get the value of the * notifications_successful flag in glink_ssr. * @timeout_multiplier: timeout multiplier for waiting on all processors * * * Return: True if cleanup_done received from all processors, false otherwise */ bool glink_ssr_wait_cleanup_done(unsigned ssr_timeout_multiplier); /** * glink_debugfs_init() - initialize glink debugfs directory * Loading Loading @@ -629,6 +619,135 @@ int glink_get_ch_rintents_queued(struct channel_ctx *ch_ctx); */ void glink_get_ch_intent_info(struct channel_ctx *ch_ctx, struct glink_ch_intent_info *ch_ctx_i); /** * enum ssr_command - G-Link SSR protocol commands */ enum ssr_command { GLINK_SSR_DO_CLEANUP, GLINK_SSR_CLEANUP_DONE, }; /** * struct subsys_info - Subsystem info structure * ssr_name: name of the subsystem recognized by the SSR framework * edge: name of the G-Link edge * xprt: name of the G-Link transport * handle: glink_ssr channel used for this subsystem * link_info: Transport info used in link state callback registration * cb_data: Private callback data structure for notification functions * subsystem_list_node: used to chain this structure in a list of subsystem * info structures * notify_list: list of subsys_info_leaf structures, containing the subsystems * to notify if this subsystem undergoes SSR * notify_list_len: length of notify_list */ struct subsys_info { const char *ssr_name; const char *edge; const char *xprt; void *handle; struct glink_link_info *link_info; struct ssr_notify_data *cb_data; struct list_head subsystem_list_node; struct list_head notify_list; int notify_list_len; bool link_up; }; /** * struct subsys_info_leaf - Subsystem info leaf structure (a subsystem on the * notify list of a subsys_info structure) * ssr_name: Name of the subsystem recognized by the SSR framework * edge: Name of the G-Link edge * xprt: Name of the G-Link transport * restarted: Indicates whether a restart has been triggered for this edge * cb_data: Private callback data structure for notification functions * notify_list_node: used to chain this structure in the notify list */ struct subsys_info_leaf { const char *ssr_name; const char *edge; const char *xprt; bool restarted; struct ssr_notify_data *cb_data; struct list_head notify_list_node; }; /** * struct do_cleanup_msg - The data structure for an SSR do_cleanup message * version: The G-Link SSR protocol version * command: The G-Link SSR command - do_cleanup * seq_num: Sequence number * name_len: Length of the name of the subsystem being restarted * name: G-Link edge name of the subsystem being restarted */ struct do_cleanup_msg { uint32_t version; uint32_t command; uint32_t seq_num; uint32_t name_len; char name[32]; }; /** * struct cleanup_done_msg - The data structure for an SSR cleanup_done message * version: The G-Link SSR protocol version * response: The G-Link SSR response to a do_cleanup command, cleanup_done * seq_num: Sequence number */ struct cleanup_done_msg { uint32_t version; uint32_t response; uint32_t seq_num; }; /** * struct ssr_notify_data - Contains private data used for client notifications * from G-Link. * tx_done: Indicates whether or not the tx_done notification has been * received. * event: The state notification event received. * responded: Indicates whether or not a cleanup_done response was received. * version: G-Link SSR protocol version * seq_num: G-Link SSR protocol sequence number */ struct ssr_notify_data { bool tx_done; unsigned event; bool responded; uint32_t version; uint32_t seq_num; }; /** * get_info_for_subsystem() - Retrieve information about a subsystem from the * global subsystem_info_list * @subsystem: The name of the subsystem recognized by the SSR * framework * * Return: subsys_info structure containing info for the requested subsystem; * NULL if no structure can be found for the requested subsystem */ struct subsys_info *get_info_for_subsystem(const char *subsystem); /** * get_info_for_edge() - Retrieve information about a subsystem from the * global subsystem_info_list * @edge: The name of the edge recognized by G-Link * * Return: subsys_info structure containing info for the requested subsystem; * NULL if no structure can be found for the requested subsystem */ struct subsys_info *get_info_for_edge(const char *edge); /** * glink_ssr_get_seq_num() - Get the current SSR sequence number * * Return: The current SSR sequence number */ uint32_t glink_ssr_get_seq_num(void); /* * glink_ssr() - SSR cleanup function. * Loading @@ -636,6 +755,16 @@ void glink_get_ch_intent_info(struct channel_ctx *ch_ctx, */ int glink_ssr(const char *subsystem); /** * glink_ssr_wait_cleanup_done() - Get the value of the * notifications_successful flag in glink_ssr. * @timeout_multiplier: timeout multiplier for waiting on all processors * * * Return: True if cleanup_done received from all processors, false otherwise */ bool glink_ssr_wait_cleanup_done(unsigned ssr_timeout_multiplier); struct channel_lcid { struct list_head list_node; uint32_t lcid; Loading
drivers/soc/qcom/glink_ssr.c +15 −105 Original line number Diff line number Diff line Loading @@ -37,14 +37,6 @@ static bool notifications_successful; /* Completion for setting notifications_successful */ struct completion notifications_successful_complete; /** * enum ssr_command - G-Link SSR protocol commands */ enum ssr_command { GLINK_SSR_DO_CLEANUP, GLINK_SSR_CLEANUP_DONE, }; /** * struct restart_notifier_block - restart notifier wrapper structure * subsystem: the name of the subsystem as recognized by the SSR framework Loading @@ -55,98 +47,6 @@ struct restart_notifier_block { struct notifier_block nb; }; /** * struct subsys_info - Subsystem info structure * ssr_name: name of the subsystem recognized by the SSR framework * edge: name of the G-Link edge * xprt: name of the G-Link transport * handle: glink_ssr channel used for this subsystem * link_info: Transport info used in link state callback registration * cb_data: Private callback data structure for notification functions * subsystem_list_node: used to chain this structure in a list of subsystem * info structures * notify_list: list of subsys_info_leaf structures, containing the subsystems * to notify if this subsystem undergoes SSR * notify_list_len: length of notify_list */ struct subsys_info { const char *ssr_name; const char *edge; const char *xprt; void *handle; struct glink_link_info *link_info; struct ssr_notify_data *cb_data; struct list_head subsystem_list_node; struct list_head notify_list; int notify_list_len; bool link_up; }; /** * struct subsys_info_leaf - Subsystem info leaf structure (a subsystem on the * notify list of a subsys_info structure) * ssr_name: Name of the subsystem recognized by the SSR framework * edge: Name of the G-Link edge * xprt: Name of the G-Link transport * restarted: Indicates whether a restart has been triggered for this edge * cb_data: Private callback data structure for notification functions * notify_list_node: used to chain this structure in the notify list */ struct subsys_info_leaf { const char *ssr_name; const char *edge; const char *xprt; bool restarted; struct ssr_notify_data *cb_data; struct list_head notify_list_node; }; /** * struct do_cleanup_msg - The data structure for an SSR do_cleanup message * version: The G-Link SSR protocol version * command: The G-Link SSR command - do_cleanup * seq_num: Sequence number * name_len: Length of the name of the subsystem being restarted * name: G-Link edge name of the subsystem being restarted */ struct do_cleanup_msg { uint32_t version; uint32_t command; uint32_t seq_num; uint32_t name_len; char name[GLINK_NAME_SIZE]; }; /** * struct cleanup_done_msg - The data structure for an SSR cleanup_done message * version: The G-Link SSR protocol version * response: The G-Link SSR response to a do_cleanup command, cleanup_done * seq_num: Sequence number */ struct cleanup_done_msg { uint32_t version; uint32_t response; uint32_t seq_num; }; /** * struct ssr_notify_data - Contains private data used for client notifications * from G-Link. * tx_done: Indicates whether or not the tx_done notification has been * received. * event: The state notification event received. * responded: Indicates whether or not a cleanup_done response was received. * version: G-Link SSR protocol version * seq_num: G-Link SSR protocol sequence number */ struct ssr_notify_data { bool tx_done; unsigned event; bool responded; uint32_t version; uint32_t seq_num; }; /** * struct configure_and_open_ch_work - Work structure for used for opening * glink_ssr channels Loading Loading @@ -179,13 +79,10 @@ static int glink_ssr_restart_notifier_cb(struct notifier_block *this, unsigned long code, void *data); static void delete_ss_info_notify_list(struct subsys_info *ss_info); static struct subsys_info *get_info_for_subsystem(const char *subsystem); static struct subsys_info *get_info_for_edge(const char *edge); static int notify_for_subsystem(struct subsys_info *ss_info); static int configure_and_open_channel(struct subsys_info *ss_info); static struct workqueue_struct *glink_ssr_wq; static LIST_HEAD(subsystem_list); static atomic_t responses_remaining = ATOMIC_INIT(0); static wait_queue_head_t waitqueue; Loading Loading @@ -667,7 +564,7 @@ static int configure_and_open_channel(struct subsys_info *ss_info) * Return: subsys_info structure containing info for the requested subsystem; * NULL if no structure can be found for the requested subsystem */ static struct subsys_info *get_info_for_subsystem(const char *subsystem) struct subsys_info *get_info_for_subsystem(const char *subsystem) { struct subsys_info *ss_info_entry; Loading @@ -679,6 +576,7 @@ static struct subsys_info *get_info_for_subsystem(const char *subsystem) return NULL; } EXPORT_SYMBOL(get_info_for_subsystem); /** * get_info_for_edge() - Retrieve information about a subsystem from the Loading @@ -688,7 +586,7 @@ static struct subsys_info *get_info_for_subsystem(const char *subsystem) * Return: subsys_info structure containing info for the requested subsystem; * NULL if no structure can be found for the requested subsystem */ static struct subsys_info *get_info_for_edge(const char *edge) struct subsys_info *get_info_for_edge(const char *edge) { struct subsys_info *ss_info_entry; Loading @@ -700,6 +598,18 @@ static struct subsys_info *get_info_for_edge(const char *edge) return NULL; } EXPORT_SYMBOL(get_info_for_edge); /** * glink_ssr_get_seq_num() - Get the current SSR sequence number * * Return: The current SSR sequence number */ uint32_t glink_ssr_get_seq_num(void) { return sequence_number; } EXPORT_SYMBOL(glink_ssr_get_seq_num); /** * delete_ss_info_notify_list() - Delete the notify list for a subsystem Loading
