/** * struct tcs_group: group of Trigger Command Sets (TCS) to send state requests * to the controller * * @drv: The controller. * @type: Type of the TCS in this group - active, sleep, wake. * @mask: Mask of the TCSes relative to all the TCSes in the RSC. * @offset: Start of the TCS group relative to the TCSes in the RSC. * @num_tcs: Number of TCSes in this type. * @ncpt: Number of commands in each TCS. * @req: Requests that are sent from the TCS; only used for ACTIVE_ONLY * transfers (could be on a wake/sleep TCS if we are borrowing for * an ACTIVE_ONLY transfer). * Start: grab drv->lock, set req, set tcs_in_use, drop drv->lock, * trigger * End: get irq, access req, * grab drv->lock, clear tcs_in_use, drop drv->lock * @slots: Indicates which of @cmd_addr are occupied; only used for * SLEEP / WAKE TCSs. Things are tightly packed in the * case that (ncpt < MAX_CMDS_PER_TCS). That is if ncpt = 2 and * MAX_CMDS_PER_TCS = 16 then bit[2] = the first bit in 2nd TCS.
*/ struct tcs_group { struct rsc_drv *drv; int type;
u32 mask;
u32 offset; int num_tcs; int ncpt; conststruct tcs_request *req[MAX_TCS_PER_TYPE];
DECLARE_BITMAP(slots, MAX_TCS_SLOTS);
};
/** * struct rpmh_request: the message to be sent to rpmh-rsc * * @msg: the request * @cmd: the payload that will be part of the @msg * @completion: triggered when request is done * @dev: the device making the request * @needs_free: check to free dynamically allocated request object
*/ struct rpmh_request { struct tcs_request msg; struct tcs_cmd cmd[MAX_RPMH_PAYLOAD]; struct completion *completion; conststruct device *dev; bool needs_free;
};
/** * struct rpmh_ctrlr: our representation of the controller * * @cache: the list of cached requests * @cache_lock: synchronize access to the cache data * @dirty: was the cache updated since flush * @batch_cache: Cache sleep and wake requests sent as batch
*/ struct rpmh_ctrlr { struct list_head cache;
spinlock_t cache_lock; bool dirty; struct list_head batch_cache;
};
struct rsc_ver {
u32 major;
u32 minor;
};
/** * struct rsc_drv: the Direct Resource Voter (DRV) of the * Resource State Coordinator controller (RSC) * * @name: Controller identifier. * @base: Start address of the DRV registers in this controller. * @tcs_base: Start address of the TCS registers in this controller. * @id: Instance id in the controller (Direct Resource Voter). * @num_tcs: Number of TCSes in this DRV. * @rsc_pm: CPU PM notifier for controller. * Used when solver mode is not present. * @cpus_in_pm: Number of CPUs not in idle power collapse. * Used when solver mode and "power-domains" is not present. * @genpd_nb: PM Domain notifier for cluster genpd notifications. * @tcs: TCS groups. * @tcs_in_use: S/W state of the TCS; only set for ACTIVE_ONLY * transfers, but might show a sleep/wake TCS in use if * it was borrowed for an active_only transfer. You * must hold the lock in this struct (AKA drv->lock) in * order to update this. * @lock: Synchronize state of the controller. If RPMH's cache * lock will also be held, the order is: drv->lock then * cache_lock. * @tcs_wait: Wait queue used to wait for @tcs_in_use to free up a * slot * @client: Handle to the DRV's client. * @dev: RSC device.
*/ struct rsc_drv { constchar *name; void __iomem *base; void __iomem *tcs_base; int id; int num_tcs; struct notifier_block rsc_pm; struct notifier_block genpd_nb;
atomic_t cpus_in_pm; struct tcs_group tcs[TCS_TYPE_NR];
DECLARE_BITMAP(tcs_in_use, MAX_TCS_NR);
spinlock_t lock;
wait_queue_head_t tcs_wait; struct rpmh_ctrlr client; struct device *dev; struct rsc_ver ver;
u32 *regs;
};
Die Informationen auf dieser Webseite wurden
nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
noch Qualität der bereit gestellten Informationen zugesichert.
Bemerkung:
Die farbliche Syntaxdarstellung und die Messung sind noch experimentell.