mirror of
git://nv-tegra.nvidia.com/linux-nvgpu.git
synced 2025-12-23 01:50:07 +03:00
03164b0f4a
Allow nvgpu to identify sync_pts that were made by nvgpu so that the underlying data structures can be accessed. This is important for the semaphore fast-path that allows nvgpu to skip doing a long CPU wait on a sync_fence. Bug 1732449 JIRA DNVGPU-12 Change-Id: Iea43de21d2d7a4e75db6b6dbf24efb78ce64d619 Signed-off-by: Alex Waterman <alexw@nvidia.com> Reviewed-on: http://git-master/r/1162688 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
59 lines
1.8 KiB
C
59 lines
1.8 KiB
C
/*
|
|
* drivers/video/tegra/host/gk20a/sync_gk20a.h
|
|
*
|
|
* GK20A Sync Framework Integration
|
|
*
|
|
* Copyright (c) 2014, NVIDIA CORPORATION. All rights reserved.
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#ifndef _GK20A_SYNC_H_
|
|
#define _GK20A_SYNC_H_
|
|
|
|
#include <linux/types.h>
|
|
#include <linux/version.h>
|
|
|
|
struct sync_timeline;
|
|
struct sync_fence;
|
|
struct sync_pt;
|
|
struct gk20a_semaphore;
|
|
struct fence;
|
|
|
|
int __gk20a_is_gk20a_sync_pt_inst(struct sync_pt *pt);
|
|
int gk20a_is_gk20a_sync_pt_inst(struct fence *f);
|
|
int gk20a_is_sema_backed_sync_fence(struct sync_fence *fence);
|
|
|
|
#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,18,0)
|
|
struct gk20a_semaphore *gk20a_sync_pt_inst_get_sema(struct fence *f);
|
|
#else
|
|
struct gk20a_semaphore *gk20a_sync_pt_inst_get_sema(struct sync_pt *pt);
|
|
#endif
|
|
|
|
#ifdef CONFIG_SYNC
|
|
struct sync_timeline *gk20a_sync_timeline_create(const char *fmt, ...);
|
|
void gk20a_sync_timeline_destroy(struct sync_timeline *);
|
|
void gk20a_sync_timeline_signal(struct sync_timeline *);
|
|
struct sync_fence *gk20a_sync_fence_create(struct sync_timeline *,
|
|
struct gk20a_semaphore *,
|
|
struct sync_fence *dependency,
|
|
const char *fmt, ...);
|
|
struct sync_fence *gk20a_sync_fence_fdget(int fd);
|
|
#else
|
|
static inline void gk20a_sync_timeline_destroy(struct sync_timeline *obj) {}
|
|
static inline void gk20a_sync_timeline_signal(struct sync_timeline *obj) {}
|
|
static inline struct sync_fence *gk20a_sync_fence_fdget(int fd)
|
|
{
|
|
return NULL;
|
|
}
|
|
#endif
|
|
|
|
#endif
|