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-rw-r--r--drivers/soc/qcom/rpmh-internal.h59
1 files changed, 38 insertions, 21 deletions
diff --git a/drivers/soc/qcom/rpmh-internal.h b/drivers/soc/qcom/rpmh-internal.h
index 6eec32b97f83..ef60e790a750 100644
--- a/drivers/soc/qcom/rpmh-internal.h
+++ b/drivers/soc/qcom/rpmh-internal.h
@@ -22,16 +22,23 @@ struct rsc_drv;
* 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
- * @lock: lock for synchronizing this TCS writes
- * @req: requests that are sent from the TCS
- * @cmd_cache: flattened cache of cmds in sleep/wake TCS
- * @slots: indicates which of @cmd_addr are occupied
+ * @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;
@@ -40,9 +47,7 @@ struct tcs_group {
u32 offset;
int num_tcs;
int ncpt;
- spinlock_t lock;
const struct tcs_request *req[MAX_TCS_PER_TYPE];
- u32 *cmd_cache;
DECLARE_BITMAP(slots, MAX_TCS_SLOTS);
};
@@ -84,20 +89,32 @@ struct rpmh_ctrlr {
* struct rsc_drv: the Direct Resource Voter (DRV) of the
* Resource State Coordinator controller (RSC)
*
- * @name: controller identifier
- * @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
- * @tcs: TCS groups
- * @tcs_in_use: s/w state of the TCS
- * @lock: synchronize state of the controller
- * @client: handle to the DRV's client.
+ * @name: Controller identifier.
+ * @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 is not present.
+ * @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.
+ * @client: Handle to the DRV's client.
*/
struct rsc_drv {
const char *name;
void __iomem *tcs_base;
int id;
int num_tcs;
+ struct notifier_block rsc_pm;
+ atomic_t cpus_in_pm;
struct tcs_group tcs[TCS_TYPE_NR];
DECLARE_BITMAP(tcs_in_use, MAX_TCS_NR);
spinlock_t lock;
@@ -107,7 +124,7 @@ struct rsc_drv {
int rpmh_rsc_send_data(struct rsc_drv *drv, const struct tcs_request *msg);
int rpmh_rsc_write_ctrl_data(struct rsc_drv *drv,
const struct tcs_request *msg);
-int rpmh_rsc_invalidate(struct rsc_drv *drv);
+void rpmh_rsc_invalidate(struct rsc_drv *drv);
void rpmh_tx_done(const struct tcs_request *msg, int r);
int rpmh_flush(struct rpmh_ctrlr *ctrlr);