drivers/remoteproc/omap_remoteproc.c

74  * struct omap_rproc_timer - data structure for a timer used by a omap rproc
92  * @num_timers: number of rproc timer(s)
93  * @num_wd_timers: number of rproc watchdog timers
94  * @timers: timer(s) info used by rproc
97  * @rproc: rproc handle
114 	struct rproc *rproc;
182  * @timer: handle to a OMAP rproc timer
198  * @timer: handle to a OMAP rproc timer
215  * @timer: handle to a OMAP rproc timer
230  * @timer: handle to a OMAP rproc timer
245  * @timer: handle to a OMAP rproc timer
263  * timers associated with a rproc (like IPUs which have 2 watchdog timers,
274 	struct rproc *rproc = data;
275 	struct omap_rproc *oproc = rproc->priv;
276 	struct device *dev = rproc->dev.parent;
296 	rproc_report_crash(rproc, RPROC_WATCHDOG);
303  * @rproc: handle of a remote processor
313 static int omap_rproc_enable_timers(struct rproc *rproc, bool configure)
320 	struct omap_rproc *oproc = rproc->priv;
322 	struct device *dev = rproc->dev.parent;
394 					  "rproc-wdt", rproc);
431 			free_irq(timers[i].irq, rproc);
443  * @rproc: handle of a remote processor
453 static int omap_rproc_disable_timers(struct rproc *rproc, bool configure)
456 	struct omap_rproc *oproc = rproc->priv;
467 				free_irq(timers[i].irq, rproc);
496 	struct device *dev = oproc->rproc->dev.parent;
497 	const char *name = oproc->rproc->name;
505 		 * remoteproc detected an exception, notify the rproc core.
508 		dev_err(dev, "omap rproc %s crashed\n", name);
509 		rproc_report_crash(oproc->rproc, RPROC_FATAL_ERROR);
522 		if (msg > oproc->rproc->max_notifyid) {
527 		if (rproc_vq_interrupt(oproc->rproc, msg) == IRQ_NONE)
533 static void omap_rproc_kick(struct rproc *rproc, int vqid)
535 	struct omap_rproc *oproc = rproc->priv;
536 	struct device *dev = rproc->dev.parent;
539 	/* wake up the rproc before kicking it */
560  * @rproc: handle of a remote processor
566 static int omap_rproc_write_dsp_boot_addr(struct rproc *rproc)
568 	struct device *dev = rproc->dev.parent;
569 	struct omap_rproc *oproc = rproc->priv;
575 	if (rproc->bootaddr & (SZ_1K - 1)) {
577 			rproc->bootaddr);
581 	value = rproc->bootaddr >> bdata->boot_reg_shift;
590  * This function will be invoked only after the firmware for this rproc
594 static int omap_rproc_start(struct rproc *rproc)
596 	struct omap_rproc *oproc = rproc->priv;
597 	struct device *dev = rproc->dev.parent;
602 		ret = omap_rproc_write_dsp_boot_addr(rproc);
634 	ret = omap_rproc_enable_timers(rproc, true);
661 	omap_rproc_disable_timers(rproc, true);
668 static int omap_rproc_stop(struct rproc *rproc)
670 	struct device *dev = rproc->dev.parent;
671 	struct omap_rproc *oproc = rproc->priv;
692 	ret = omap_rproc_disable_timers(rproc, true);
720  * @rproc: remote processor to apply the address translation for
724  * Custom function implementing the rproc .da_to_va ops to provide address
732 static void *omap_rproc_da_to_va(struct rproc *rproc, u64 da, size_t len, bool *is_iomem)
734 	struct omap_rproc *oproc = rproc->priv;
772 static int _omap_rproc_suspend(struct rproc *rproc, bool auto_suspend)
774 	struct device *dev = rproc->dev.parent;
775 	struct omap_rproc *oproc = rproc->priv;
821 	ret = omap_rproc_disable_timers(rproc, false);
834 		ret = omap_iommu_domain_deactivate(rproc->domain);
846 	omap_rproc_enable_timers(rproc, false);
852 static int _omap_rproc_resume(struct rproc *rproc, bool auto_suspend)
854 	struct device *dev = rproc->dev.parent;
855 	struct omap_rproc *oproc = rproc->priv;
864 		ret = omap_iommu_domain_activate(rproc->domain);
873 		ret = omap_rproc_write_dsp_boot_addr(rproc);
880 	ret = omap_rproc_enable_timers(rproc, false);
895 	omap_rproc_disable_timers(rproc, false);
898 		omap_iommu_domain_deactivate(rproc->domain);
905 	struct rproc *rproc = dev_get_drvdata(dev);
906 	struct omap_rproc *oproc = rproc->priv;
909 	mutex_lock(&rproc->lock);
910 	if (rproc->state == RPROC_OFFLINE)
913 	if (rproc->state == RPROC_SUSPENDED)
916 	if (rproc->state != RPROC_RUNNING) {
921 	ret = _omap_rproc_suspend(rproc, false);
932 	rproc->state = RPROC_SUSPENDED;
935 	mutex_unlock(&rproc->lock);
941 	struct rproc *rproc = dev_get_drvdata(dev);
942 	struct omap_rproc *oproc = rproc->priv;
945 	mutex_lock(&rproc->lock);
946 	if (rproc->state == RPROC_OFFLINE)
949 	if (rproc->state != RPROC_SUSPENDED) {
962 	ret = _omap_rproc_resume(rproc, false);
969 	rproc->state = RPROC_RUNNING;
973 	mutex_unlock(&rproc->lock);
979 	struct rproc *rproc = dev_get_drvdata(dev);
980 	struct omap_rproc *oproc = rproc->priv;
983 	mutex_lock(&rproc->lock);
984 	if (rproc->state == RPROC_CRASHED) {
985 		dev_dbg(dev, "rproc cannot be runtime suspended when crashed!\n");
990 	if (WARN_ON(rproc->state != RPROC_RUNNING)) {
991 		dev_err(dev, "rproc cannot be runtime suspended when not running!\n");
1005 	ret = _omap_rproc_suspend(rproc, true);
1009 	rproc->state = RPROC_SUSPENDED;
1010 	mutex_unlock(&rproc->lock);
1016 	mutex_unlock(&rproc->lock);
1022 	struct rproc *rproc = dev_get_drvdata(dev);
1025 	mutex_lock(&rproc->lock);
1026 	if (WARN_ON(rproc->state != RPROC_SUSPENDED)) {
1027 		dev_err(dev, "rproc cannot be runtime resumed if not suspended! state=%d\n",
1028 			rproc->state);
1033 	ret = _omap_rproc_resume(rproc, true);
1039 	rproc->state = RPROC_RUNNING;
1041 	mutex_unlock(&rproc->lock);
1131 				    struct rproc *rproc)
1134 	struct omap_rproc *oproc = rproc->priv;
1170 					       struct rproc *rproc)
1172 	struct omap_rproc *oproc = rproc->priv;
1245 				    struct rproc *rproc)
1248 	struct omap_rproc *oproc = rproc->priv;
1284 	struct rproc *rproc;
1308 	rproc = rproc_alloc(&pdev->dev, dev_name(&pdev->dev), &omap_rproc_ops,
1310 	if (!rproc)
1313 	oproc = rproc->priv;
1314 	oproc->rproc = rproc;
1317 	rproc->has_iommu = true;
1319 	ret = omap_rproc_of_get_internal_memories(pdev, rproc);
1323 	ret = omap_rproc_get_boot_data(pdev, rproc);
1327 	ret = omap_rproc_of_get_timers(pdev, rproc);
1352 	platform_set_drvdata(pdev, rproc);
1354 	ret = rproc_add(rproc);
1363 	rproc_free(rproc);
1369 	struct rproc *rproc = platform_get_drvdata(pdev);
1371 	rproc_del(rproc);
1372 	rproc_free(rproc);
1386 		.name = "omap-rproc",