kernel/drivers/staging/imgtec/pvr_linux_fence.h

/* -*- mode: c; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/* vi: set ts=8 sw=8 sts=8: */
/*************************************************************************/ /*!
@File
@Title          PowerVR Linux fence compatibility header
@Codingstyle    LinuxKernel
@Copyright      Copyright (c) Imagination Technologies Ltd. All Rights Reserved
@License        MIT

The contents of this file are subject to the MIT license as set out below.

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

This License is also included in this distribution in the file called
"MIT-COPYING".

EXCEPT AS OTHERWISE STATED IN A NEGOTIATED AGREEMENT: (A) THE SOFTWARE IS
PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
PURPOSE AND NONINFRINGEMENT; AND (B) IN NO EVENT SHALL THE AUTHORS OR
COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/ /**************************************************************************/

#if !defined(__PVR_LINUX_FENCE_H__)
#define __PVR_LINUX_FENCE_H__

#include <linux/version.h>

#if (LINUX_VERSION_CODE < KERNEL_VERSION(4, 10, 0)) && \
	(!defined(CHROMIUMOS_KERNEL) || (LINUX_VERSION_CODE < KERNEL_VERSION(4, 4, 0)))
#include <linux/fence.h>
#else
#include <linux/dma-fence.h>
#endif

#if (LINUX_VERSION_CODE < KERNEL_VERSION(4, 10, 0)) && \
	(!defined(CHROMIUMOS_KERNEL) || (LINUX_VERSION_CODE < KERNEL_VERSION(4, 4, 0)))
/* Structures */
#define	dma_fence fence
#define dma_fence_array fence_array
#define	dma_fence_cb fence_cb
#define	dma_fence_ops fence_ops

/* Defines and Enums */
#define DMA_FENCE_FLAG_ENABLE_SIGNAL_BIT FENCE_FLAG_ENABLE_SIGNAL_BIT
#define DMA_FENCE_FLAG_SIGNALED_BIT FENCE_FLAG_SIGNALED_BIT
#define DMA_FENCE_FLAG_USER_BITS FENCE_FLAG_USER_BITS

#define DMA_FENCE_ERR FENCE_ERR
#define	DMA_FENCE_TRACE FENCE_TRACE
#define DMA_FENCE_WARN FENCE_WARN

/* Functions */
#define dma_fence_add_callback fence_add_callback
#define dma_fence_context_alloc fence_context_alloc
#define dma_fence_default_wait fence_default_wait
#define dma_fence_is_signaled fence_is_signaled
#define dma_fence_enable_sw_signaling fence_enable_sw_signaling
#define dma_fence_free fence_free 
#define dma_fence_get fence_get 
#define dma_fence_get_rcu fence_get_rcu 
#define dma_fence_init fence_init 
#define dma_fence_is_array fence_is_array
#define dma_fence_put fence_put 
#define dma_fence_signal fence_signal 
#define dma_fence_wait fence_wait
#define to_dma_fence_array to_fence_array

static inline signed long
dma_fence_wait_timeout(struct dma_fence *fence, bool intr, signed long timeout)
{
	signed long lret;

	lret = fence_wait_timeout(fence, intr, timeout);
	if (!lret && !timeout)
		return test_bit(DMA_FENCE_FLAG_SIGNALED_BIT, &fence->flags) ? 1 : 0;

	return lret;
}

#endif

#endif /* !defined(__PVR_LINUX_FENCE_H__) */