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	As drm_open_any() now quietly fails if there is no driver, this
nullifies the effectiviness of using gem_exec_nop as the test for a good
reload. Combine with gem_alive (and guarantee that gem_alive can detect
a dead driver, putting lie to
commit 032f30cb38bb03562ee7fde19cd278b1d8ac31a9
Author: Thomas Wood <thomas.wood@intel.com>
Date:   Tue Jan 13 13:33:57 2015 +0000
    lib: remove unnecessary checks on the drm_open_any return value
) first.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=88573
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
		
	
			
		
			
				
	
	
		
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			106 lines
		
	
	
		
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/*
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 * Copyright © 2007 Intel Corporation
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 *
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 * Permission is hereby granted, free of charge, to any person obtaining a
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 * copy of this software and associated documentation files (the "Software"),
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 * to deal in the Software without restriction, including without limitation
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 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
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 * and/or sell copies of the Software, and to permit persons to whom the
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 * Software is furnished to do so, subject to the following conditions:
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 *
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 * The above copyright notice and this permission notice (including the next
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 * paragraph) shall be included in all copies or substantial portions of the
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 * Software.
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 *
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
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 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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 * IN THE SOFTWARE.
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 *
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 * Authors:
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 *    Eric Anholt <eric@anholt.net>
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 *
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 */
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#ifndef DRMTEST_H
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#define DRMTEST_H
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#include <unistd.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include <sys/mman.h>
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#include <errno.h>
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#include <xf86drm.h>
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#include "intel_batchbuffer.h"
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#ifdef ANDROID
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#ifndef HAVE_MMAP64
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extern void*  __mmap2(void *, size_t, int, int, int, off_t);
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/* mmap64 is a recent addition to bionic and not available in all android builds. */
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/* I can find no reliable way to know if it is defined or not - so just avoid it */
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#define mmap64 igt_mmap64
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static inline void *igt_mmap64(void *addr, size_t length, int prot, int flags,
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        int fd, off64_t offset)
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{
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    return __mmap2(addr, length, prot, flags, fd, offset >> 12);
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}
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#endif
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#endif
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/**
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 * ARRAY_SIZE:
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 * @arr: static array
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 *
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 * Macro to compute the size of the static array @arr.
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 */
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#define ARRAY_SIZE(arr) (sizeof(arr)/sizeof(arr[0]))
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/**
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 * ALIGN:
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 * @v: value to be aligned
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 * @a: alignment unit in bytes
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 *
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 * Macro to align a value @v to a specified unit @a.
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 */
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#define ALIGN(v, a) (((v) + (a)-1) & ~((a)-1))
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int drm_get_card(void);
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int __drm_open_any(void);
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int drm_open_any(void);
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int drm_open_any_master(void);
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int drm_open_any_render(void);
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void gem_quiescent_gpu(int fd);
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/**
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 * do_or_die:
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 * @x: command
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 *
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 * Simple macro to execute x and check that it's return value is 0. Presumes
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 * that in any failure case the return value is non-zero and a precise error is
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 * logged into errno. Uses igt_assert() internally.
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 */
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#define do_or_die(x) igt_assert((x) == 0)
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/**
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 * do_ioctl:
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 * @fd: open i915 drm file descriptor
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 * @ioc: ioctl op definition from drm headers
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 * @ioc_data: data pointer for the ioctl operation
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 *
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 * This macro wraps drmIoctl() and uses igt_assert to check that it has been
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 * successfully executed.
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 */
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#define do_ioctl(fd, ioc, ioc_data) do { \
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	igt_assert(drmIoctl((fd), (ioc), (ioc_data)) == 0); \
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	errno = 0; \
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} while (0)
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#endif /* DRMTEST_H */
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