diff options
Diffstat (limited to 'drivers/gpu/arm/utgard/linux/mali_sync.h')
-rw-r--r-- | drivers/gpu/arm/utgard/linux/mali_sync.h | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/drivers/gpu/arm/utgard/linux/mali_sync.h b/drivers/gpu/arm/utgard/linux/mali_sync.h new file mode 100644 index 000000000000..0c541ff9a2e0 --- /dev/null +++ b/drivers/gpu/arm/utgard/linux/mali_sync.h @@ -0,0 +1,111 @@ +/* + * Copyright (C) 2012-2015 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the GNU General Public License version 2 + * as published by the Free Software Foundation, and any use by you of this program is subject to the terms of such GNU licence. + * + * A copy of the licence is included with the program, and can also be obtained from Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +/** + * @file mali_sync.h + * + * Mali interface for Linux sync objects. + */ + +#ifndef _MALI_SYNC_H_ +#define _MALI_SYNC_H_ + +#if defined(CONFIG_SYNC) + +#include <linux/seq_file.h> +#include <linux/version.h> +#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 10, 0) +#include <linux/sync.h> +#else +#include <sync.h> +#endif + + +#include "mali_osk.h" + +struct mali_sync_flag; +struct mali_timeline; + +/** + * Create a sync timeline. + * + * @param name Name of the sync timeline. + * @return The new sync timeline if successful, NULL if not. + */ +struct sync_timeline *mali_sync_timeline_create(struct mali_timeline *timeline, const char *name); + +/** + * Creates a file descriptor representing the sync fence. Will release sync fence if allocation of + * file descriptor fails. + * + * @param sync_fence Sync fence. + * @return File descriptor representing sync fence if successful, or -1 if not. + */ +s32 mali_sync_fence_fd_alloc(struct sync_fence *sync_fence); + +/** + * Merges two sync fences. Both input sync fences will be released. + * + * @param sync_fence1 First sync fence. + * @param sync_fence2 Second sync fence. + * @return New sync fence that is the result of the merger if successful, or NULL if not. + */ +struct sync_fence *mali_sync_fence_merge(struct sync_fence *sync_fence1, struct sync_fence *sync_fence2); + +/** + * Create a sync fence that is already signaled. + * + * @param tl Sync timeline. + * @return New signaled sync fence if successful, NULL if not. + */ +struct sync_fence *mali_sync_timeline_create_signaled_fence(struct sync_timeline *sync_tl); + +/** + * Create a sync flag. + * + * @param sync_tl Sync timeline. + * @param point Point on Mali timeline. + * @return New sync flag if successful, NULL if not. + */ +struct mali_sync_flag *mali_sync_flag_create(struct sync_timeline *sync_tl, u32 point); + +/** + * Grab sync flag reference. + * + * @param flag Sync flag. + */ +void mali_sync_flag_get(struct mali_sync_flag *flag); + +/** + * Release sync flag reference. If this was the last reference, the sync flag will be freed. + * + * @param flag Sync flag. + */ +void mali_sync_flag_put(struct mali_sync_flag *flag); + +/** + * Signal sync flag. All sync fences created from this flag will be signaled. + * + * @param flag Sync flag to signal. + * @param error Negative error code, or 0 if no error. + */ +void mali_sync_flag_signal(struct mali_sync_flag *flag, int error); + +/** + * Create a sync fence attached to given sync flag. + * + * @param flag Sync flag. + * @return New sync fence if successful, NULL if not. + */ +struct sync_fence *mali_sync_flag_create_fence(struct mali_sync_flag *flag); + +#endif /* defined(CONFIG_SYNC) */ + +#endif /* _MALI_SYNC_H_ */ |