diff options
Diffstat (limited to 'drivers/gpu/host1x/intr.h')
| -rw-r--r-- | drivers/gpu/host1x/intr.h | 91 |
1 files changed, 13 insertions, 78 deletions
diff --git a/drivers/gpu/host1x/intr.h b/drivers/gpu/host1x/intr.h index 1370c2bb75b8..11cdf13e32fe 100644 --- a/drivers/gpu/host1x/intr.h +++ b/drivers/gpu/host1x/intr.h @@ -1,93 +1,23 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ /* * Tegra host1x Interrupt Management * - * Copyright (c) 2010-2013, NVIDIA Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. + * Copyright (c) 2010-2021, NVIDIA Corporation. */ #ifndef __HOST1X_INTR_H #define __HOST1X_INTR_H -#include <linux/interrupt.h> -#include <linux/workqueue.h> - struct host1x; +struct host1x_syncpt_fence; -enum host1x_intr_action { - /* - * Perform cleanup after a submit has completed. - * 'data' points to a channel - */ - HOST1X_INTR_ACTION_SUBMIT_COMPLETE = 0, - - /* - * Wake up a task. - * 'data' points to a wait_queue_head_t - */ - HOST1X_INTR_ACTION_WAKEUP, - - /* - * Wake up a interruptible task. - * 'data' points to a wait_queue_head_t - */ - HOST1X_INTR_ACTION_WAKEUP_INTERRUPTIBLE, - - HOST1X_INTR_ACTION_COUNT -}; - -struct host1x_syncpt_intr { - spinlock_t lock; - struct list_head wait_head; - char thresh_irq_name[12]; - struct work_struct work; -}; - -struct host1x_waitlist { - struct list_head list; - struct kref refcount; - u32 thresh; - enum host1x_intr_action action; - atomic_t state; - void *data; - int count; +struct host1x_intr_irq_data { + struct host1x *host; + u32 offset; }; -/* - * Schedule an action to be taken when a sync point reaches the given threshold. - * - * @id the sync point - * @thresh the threshold - * @action the action to take - * @data a pointer to extra data depending on action, see above - * @waiter waiter structure - assumes ownership - * @ref must be passed if cancellation is possible, else NULL - * - * This is a non-blocking api. - */ -int host1x_intr_add_action(struct host1x *host, unsigned int id, u32 thresh, - enum host1x_intr_action action, void *data, - struct host1x_waitlist *waiter, void **ref); - -/* - * Unreference an action submitted to host1x_intr_add_action(). - * You must call this if you passed non-NULL as ref. - * @ref the ref returned from host1x_intr_add_action() - */ -void host1x_intr_put_ref(struct host1x *host, unsigned int id, void *ref); - /* Initialize host1x sync point interrupt */ -int host1x_intr_init(struct host1x *host, unsigned int irq_sync); +int host1x_intr_init(struct host1x *host); /* Deinitialize host1x sync point interrupt */ void host1x_intr_deinit(struct host1x *host); @@ -98,5 +28,10 @@ void host1x_intr_start(struct host1x *host); /* Disable host1x sync point interrupt */ void host1x_intr_stop(struct host1x *host); -irqreturn_t host1x_syncpt_thresh_fn(void *dev_id); +void host1x_intr_handle_interrupt(struct host1x *host, unsigned int id); + +void host1x_intr_add_fence_locked(struct host1x *host, struct host1x_syncpt_fence *fence); + +bool host1x_intr_remove_fence(struct host1x *host, struct host1x_syncpt_fence *fence); + #endif |