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/*
* Copyright © 2012 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:
* Daniel Vetter <daniel.vetter@ffwll.ch>
*
*/
#include "igt.h"
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <fcntl.h>
#include <inttypes.h>
#include <errno.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include "drm.h"
IGT_TEST_DESCRIPTION("Check set_tiling vs pwrite coherency.");
#define OBJECT_SIZE (1024*1024)
#define TEST_STRIDE (1024*4)
/**
* Testcase: Check set_tiling vs pwrite coherency
*/
igt_simple_main
{
int fd;
uint32_t *ptr;
uint32_t data[OBJECT_SIZE/4];
int i;
uint32_t handle;
igt_skip_on_simulation();
fd = drm_open_driver(DRIVER_INTEL);
for (i = 0; i < OBJECT_SIZE/4; i++)
data[i] = i;
handle = gem_create(fd, OBJECT_SIZE);
ptr = gem_mmap__gtt(fd, handle, OBJECT_SIZE, PROT_READ | PROT_WRITE);
gem_set_tiling(fd, handle, I915_TILING_X, TEST_STRIDE);
/* touch it */
gem_set_domain(fd, handle, I915_GEM_DOMAIN_GTT, I915_GEM_DOMAIN_GTT);
*ptr = 0xdeadbeef;
igt_info("testing pwrite on tiled buffer\n");
gem_write(fd, handle, 0, data, OBJECT_SIZE);
memset(data, 0, OBJECT_SIZE);
gem_read(fd, handle, 0, data, OBJECT_SIZE);
for (i = 0; i < OBJECT_SIZE/4; i++)
igt_assert(i == data[i]);
/* touch it before changing the tiling, so that the fence sticks around */
gem_set_domain(fd, handle, I915_GEM_DOMAIN_GTT, I915_GEM_DOMAIN_GTT);
*ptr = 0xdeadbeef;
gem_set_tiling(fd, handle, I915_TILING_NONE, 0);
igt_info("testing pwrite on untiled, but still fenced buffer\n");
gem_write(fd, handle, 0, data, OBJECT_SIZE);
memset(data, 0, OBJECT_SIZE);
gem_read(fd, handle, 0, data, OBJECT_SIZE);
for (i = 0; i < OBJECT_SIZE/4; i++)
igt_assert(i == data[i]);
munmap(ptr, OBJECT_SIZE);
close(fd);
}
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