ntel-gpu-tools/lib/drmtest.h
Chris Wilson c1fed522ae lib: Replace drmIoctl() with a layer of indirection
Insted of calling drmIoctl() directly, call igt_ioctl() instead. In the
normal scenario this is function pointer that calls drmIoctl() (so no
penalty), but allows us to divert ioctls into our own routines for
nefarious purposes. One such purpose will be to control interrupt
generation into the ioctl, to be able to detect when we successfully
interrupt the ioctl and when we no longer need more interrupts.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2016-03-19 13:15:08 +00:00

126 lines
3.7 KiB
C

/*
* Copyright © 2007 Intel Corporation
*
* 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 (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* 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. 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.
*
* Authors:
* Eric Anholt <eric@anholt.net>
*
*/
#ifndef DRMTEST_H
#define DRMTEST_H
#include <unistd.h>
#include <stdbool.h>
#include <stdint.h>
#include <sys/mman.h>
#include <errno.h>
#include <xf86drm.h>
#include "intel_batchbuffer.h"
#define DRIVER_ANY 0x1
#define DRIVER_INTEL (0x1 << 1)
#define DRIVER_VC4 (0x1 << 2)
#ifdef ANDROID
#if (!(defined HAVE_MMAP64)) && (!(defined __x86_64__))
extern void* __mmap2(void *, size_t, int, int, int, off_t);
/* mmap64 is a recent addition to bionic and not available in all android builds. */
/* I can find no reliable way to know if it is defined or not - so just avoid it */
#define mmap64 igt_mmap64
static inline void *igt_mmap64(void *addr, size_t length, int prot, int flags,
int fd, off64_t offset)
{
return __mmap2(addr, length, prot, flags, fd, offset >> 12);
}
#endif
#endif
/**
* ARRAY_SIZE:
* @arr: static array
*
* Macro to compute the size of the static array @arr.
*/
#define ARRAY_SIZE(arr) (sizeof(arr)/sizeof(arr[0]))
/**
* ALIGN:
* @v: value to be aligned
* @a: alignment unit in bytes
*
* Macro to align a value @v to a specified unit @a.
*/
#define ALIGN(v, a) (((v) + (a)-1) & ~((a)-1))
int drm_get_card(void);
int drm_open_driver(int chipset);
int drm_open_driver_master(int chipset);
int drm_open_driver_render(int chipset);
int __drm_open_driver(int chipset);
void gem_quiescent_gpu(int fd);
/**
* do_or_die:
* @x: command
*
* Simple macro to execute x and check that it's return value is 0. Presumes
* that in any failure case the return value is non-zero and a precise error is
* logged into errno. Uses igt_assert() internally.
*/
#define do_or_die(x) igt_assert((x) == 0)
/**
* do_ioctl:
* @fd: open i915 drm file descriptor
* @ioc: ioctl op definition from drm headers
* @ioc_data: data pointer for the ioctl operation
*
* This macro wraps drmIoctl() and uses igt_assert to check that it has been
* successfully executed.
*/
#define do_ioctl(fd, ioc, ioc_data) do { \
igt_assert_eq(igt_ioctl((fd), (ioc), (ioc_data)), 0); \
errno = 0; \
} while (0)
/**
* do_ioctl_err:
* @fd: open i915 drm file descriptor
* @ioc: ioctl op definition from drm headers
* @ioc_data: data pointer for the ioctl operation
* @err: value to expect in errno
*
* This macro wraps drmIoctl() and uses igt_assert to check that it fails,
* returning a particular value in errno.
*/
#define do_ioctl_err(fd, ioc, ioc_data, err) do { \
igt_assert_eq(igt_ioctl((fd), (ioc), (ioc_data)), -1); \
igt_assert_eq(errno, err); \
errno = 0; \
} while (0)
#endif /* DRMTEST_H */