diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c index d8acabbb1ed3..1354c42d95aa 100644 --- a/drivers/s390/char/con3215.c +++ b/drivers/s390/char/con3215.c @@ -289,16 +289,14 @@ static void raw3215_timeout(struct timer_list *t) spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags); raw->flags &= ~RAW3215_TIMER_RUNS; - if (!tty_port_suspended(&raw->port)) { - raw3215_mk_write_req(raw); - raw3215_start_io(raw); - if ((raw->queued_read || raw->queued_write) && - !(raw->flags & RAW3215_WORKING) && - !(raw->flags & RAW3215_TIMER_RUNS)) { - raw->timer.expires = RAW3215_TIMEOUT + jiffies; - add_timer(&raw->timer); - raw->flags |= RAW3215_TIMER_RUNS; - } + raw3215_mk_write_req(raw); + raw3215_start_io(raw); + if ((raw->queued_read || raw->queued_write) && + !(raw->flags & RAW3215_WORKING) && + !(raw->flags & RAW3215_TIMER_RUNS)) { + raw->timer.expires = RAW3215_TIMEOUT + jiffies; + add_timer(&raw->timer); + raw->flags |= RAW3215_TIMER_RUNS; } spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags); } @@ -311,7 +309,7 @@ static void raw3215_timeout(struct timer_list *t) */ static inline void raw3215_try_io(struct raw3215_info *raw) { - if (!tty_port_initialized(&raw->port) || tty_port_suspended(&raw->port)) + if (!tty_port_initialized(&raw->port)) return; if (raw->queued_read != NULL) raw3215_start_io(raw); @@ -463,26 +461,6 @@ put_tty: tty_kref_put(tty); } -/* - * Drop the oldest line from the output buffer. - */ -static void raw3215_drop_line(struct raw3215_info *raw) -{ - int ix; - char ch; - - BUG_ON(raw->written != 0); - ix = (raw->head - raw->count) & (RAW3215_BUFFER_SIZE - 1); - while (raw->count > 0) { - ch = raw->buffer[ix]; - ix = (ix + 1) & (RAW3215_BUFFER_SIZE - 1); - raw->count--; - if (ch == 0x15) - break; - } - raw->head = ix; -} - /* * Wait until length bytes are available int the output buffer. * Has to be called with the s390irq lock held. Can be called @@ -491,13 +469,6 @@ static void raw3215_drop_line(struct raw3215_info *raw) static void raw3215_make_room(struct raw3215_info *raw, unsigned int length) { while (RAW3215_BUFFER_SIZE - raw->count < length) { - /* While console is frozen for suspend we have no other - * choice but to drop message from the buffer to make - * room for even more messages. */ - if (tty_port_suspended(&raw->port)) { - raw3215_drop_line(raw); - continue; - } /* there might be a request pending */ raw->flags |= RAW3215_FLUSHING; raw3215_mk_write_req(raw); @@ -763,36 +734,6 @@ static int raw3215_set_offline (struct ccw_device *cdev) return 0; } -static int raw3215_pm_stop(struct ccw_device *cdev) -{ - struct raw3215_info *raw; - unsigned long flags; - - /* Empty the output buffer, then prevent new I/O. */ - raw = dev_get_drvdata(&cdev->dev); - spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags); - raw3215_make_room(raw, RAW3215_BUFFER_SIZE); - tty_port_set_suspended(&raw->port, 1); - spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags); - return 0; -} - -static int raw3215_pm_start(struct ccw_device *cdev) -{ - struct raw3215_info *raw; - unsigned long flags; - - /* Allow I/O again and flush output buffer. */ - raw = dev_get_drvdata(&cdev->dev); - spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags); - tty_port_set_suspended(&raw->port, 0); - raw->flags |= RAW3215_FLUSHING; - raw3215_try_io(raw); - raw->flags &= ~RAW3215_FLUSHING; - spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags); - return 0; -} - static struct ccw_device_id raw3215_id[] = { { CCW_DEVICE(0x3215, 0) }, { /* end of list */ }, @@ -808,9 +749,6 @@ static struct ccw_driver raw3215_ccw_driver = { .remove = &raw3215_remove, .set_online = &raw3215_set_online, .set_offline = &raw3215_set_offline, - .freeze = &raw3215_pm_stop, - .thaw = &raw3215_pm_start, - .restore = &raw3215_pm_start, .int_class = IRQIO_C15, }; @@ -858,11 +796,6 @@ static void con3215_flush(void) unsigned long flags; raw = raw3215[0]; /* console 3215 is the first one */ - if (tty_port_suspended(&raw->port)) - /* The console is still frozen for suspend. */ - if (ccw_device_force_console(raw->cdev)) - /* Forcing didn't work, no panic message .. */ - return; spin_lock_irqsave(get_ccwdev_lock(raw->cdev), flags); raw3215_make_room(raw, RAW3215_BUFFER_SIZE); spin_unlock_irqrestore(get_ccwdev_lock(raw->cdev), flags); diff --git a/drivers/s390/char/con3270.c b/drivers/s390/char/con3270.c index e17364e13d2f..e21962c0fd94 100644 --- a/drivers/s390/char/con3270.c +++ b/drivers/s390/char/con3270.c @@ -544,7 +544,6 @@ con3270_flush(void) cp = condev; if (!cp->view.dev) return; - raw3270_pm_unfreeze(&cp->view); raw3270_activate_view(&cp->view); spin_lock_irqsave(&cp->view.lock, flags); con3270_wait_write(cp); diff --git a/drivers/s390/char/raw3270.c b/drivers/s390/char/raw3270.c index 63a41b168761..646ec796bb83 100644 --- a/drivers/s390/char/raw3270.c +++ b/drivers/s390/char/raw3270.c @@ -67,7 +67,6 @@ struct raw3270 { #define RAW3270_FLAGS_14BITADDR 0 /* 14-bit buffer addresses */ #define RAW3270_FLAGS_BUSY 1 /* Device busy, leave it alone */ #define RAW3270_FLAGS_CONSOLE 2 /* Device is the console. */ -#define RAW3270_FLAGS_FROZEN 3 /* set if 3270 is frozen for suspend */ /* Semaphore to protect global data of raw3270 (devices, views, etc). */ static DEFINE_MUTEX(raw3270_mutex); @@ -260,8 +259,7 @@ raw3270_view_active(struct raw3270_view *view) { struct raw3270 *rp = view->dev; - return rp && rp->view == view && - !test_bit(RAW3270_FLAGS_FROZEN, &rp->flags); + return rp && rp->view == view; } int @@ -273,8 +271,7 @@ raw3270_start(struct raw3270_view *view, struct raw3270_request *rq) spin_lock_irqsave(get_ccwdev_lock(view->dev->cdev), flags); rp = view->dev; - if (!rp || rp->view != view || - test_bit(RAW3270_FLAGS_FROZEN, &rp->flags)) + if (!rp || rp->view != view) rc = -EACCES; else if (!raw3270_state_ready(rp)) rc = -EBUSY; @@ -291,8 +288,7 @@ raw3270_start_locked(struct raw3270_view *view, struct raw3270_request *rq) int rc; rp = view->dev; - if (!rp || rp->view != view || - test_bit(RAW3270_FLAGS_FROZEN, &rp->flags)) + if (!rp || rp->view != view) rc = -EACCES; else if (!raw3270_state_ready(rp)) rc = -EBUSY; @@ -629,8 +625,7 @@ raw3270_reset(struct raw3270_view *view) int rc; rp = view->dev; - if (!rp || rp->view != view || - test_bit(RAW3270_FLAGS_FROZEN, &rp->flags)) + if (!rp || rp->view != view) rc = -EACCES; else if (!raw3270_state_ready(rp)) rc = -EBUSY; @@ -854,8 +849,6 @@ raw3270_activate_view(struct raw3270_view *view) rc = 0; else if (!raw3270_state_ready(rp)) rc = -EBUSY; - else if (test_bit(RAW3270_FLAGS_FROZEN, &rp->flags)) - rc = -EACCES; else { oldview = NULL; if (rp->view && rp->view->fn->deactivate) { @@ -903,8 +896,7 @@ raw3270_deactivate_view(struct raw3270_view *view) list_del_init(&view->list); list_add_tail(&view->list, &rp->view_list); /* Try to activate another view. */ - if (raw3270_state_ready(rp) && - !test_bit(RAW3270_FLAGS_FROZEN, &rp->flags)) { + if (raw3270_state_ready(rp)) { list_for_each_entry(view, &rp->view_list, list) { rp->view = view; if (view->fn->activate(view) == 0) @@ -999,8 +991,7 @@ raw3270_del_view(struct raw3270_view *view) rp->view = NULL; } list_del_init(&view->list); - if (!rp->view && raw3270_state_ready(rp) && - !test_bit(RAW3270_FLAGS_FROZEN, &rp->flags)) { + if (!rp->view && raw3270_state_ready(rp)) { /* Try to activate another view. */ list_for_each_entry(nv, &rp->view_list, list) { if (nv->fn->activate(nv) == 0) { @@ -1215,60 +1206,6 @@ raw3270_set_offline (struct ccw_device *cdev) return 0; } -static int raw3270_pm_stop(struct ccw_device *cdev) -{ - struct raw3270 *rp; - struct raw3270_view *view; - unsigned long flags; - - rp = dev_get_drvdata(&cdev->dev); - if (!rp) - return 0; - spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags); - if (rp->view && rp->view->fn->deactivate) - rp->view->fn->deactivate(rp->view); - if (!test_bit(RAW3270_FLAGS_CONSOLE, &rp->flags)) { - /* - * Release tty and fullscreen for all non-console - * devices. - */ - list_for_each_entry(view, &rp->view_list, list) { - if (view->fn->release) - view->fn->release(view); - } - } - set_bit(RAW3270_FLAGS_FROZEN, &rp->flags); - spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags); - return 0; -} - -static int raw3270_pm_start(struct ccw_device *cdev) -{ - struct raw3270 *rp; - unsigned long flags; - - rp = dev_get_drvdata(&cdev->dev); - if (!rp) - return 0; - spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags); - clear_bit(RAW3270_FLAGS_FROZEN, &rp->flags); - if (rp->view && rp->view->fn->activate) - rp->view->fn->activate(rp->view); - spin_unlock_irqrestore(get_ccwdev_lock(rp->cdev), flags); - return 0; -} - -void raw3270_pm_unfreeze(struct raw3270_view *view) -{ -#ifdef CONFIG_TN3270_CONSOLE - struct raw3270 *rp; - - rp = view->dev; - if (rp && test_bit(RAW3270_FLAGS_FROZEN, &rp->flags)) - ccw_device_force_console(rp->cdev); -#endif -} - static struct ccw_device_id raw3270_id[] = { { CCW_DEVICE(0x3270, 0) }, { CCW_DEVICE(0x3271, 0) }, @@ -1294,9 +1231,6 @@ static struct ccw_driver raw3270_ccw_driver = { .remove = &raw3270_remove, .set_online = &raw3270_set_online, .set_offline = &raw3270_set_offline, - .freeze = &raw3270_pm_stop, - .thaw = &raw3270_pm_start, - .restore = &raw3270_pm_start, .int_class = IRQIO_C70, }; diff --git a/drivers/s390/char/raw3270.h b/drivers/s390/char/raw3270.h index 8d979e0ee605..c6645167cd2b 100644 --- a/drivers/s390/char/raw3270.h +++ b/drivers/s390/char/raw3270.h @@ -199,7 +199,6 @@ struct raw3270_notifier { int raw3270_register_notifier(struct raw3270_notifier *); void raw3270_unregister_notifier(struct raw3270_notifier *); -void raw3270_pm_unfreeze(struct raw3270_view *); /* * Little memory allocator for string objects.