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109 lines
2.8 KiB
109 lines
2.8 KiB
/*
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* Copyright © 2009 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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* Daniel Vetter <daniel.vetter@ffwll.ch>
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*
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*/
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/** @file gem_gtt_cpu_tlb.c
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*
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* This test checks whether gtt tlbs for cpu access are correctly invalidated.
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*/
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#include "igt.h"
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <fcntl.h>
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#include <inttypes.h>
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#include <errno.h>
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#include <sys/stat.h>
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#include <sys/time.h>
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#include <sys/ioctl.h>
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#include "drm.h"
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IGT_TEST_DESCRIPTION("Check whether gtt tlbs for cpu access are correctly"
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" invalidated.");
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#define OBJ_SIZE (1024*1024)
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#define PAGE_SIZE 4096
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static uint32_t
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create_bo(int fd)
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{
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uint32_t handle;
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uint32_t *data;
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int i;
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handle = gem_create(fd, OBJ_SIZE);
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/* Fill the BO with dwords starting at start_val */
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data = gem_mmap__gtt(fd, handle, OBJ_SIZE, PROT_READ | PROT_WRITE);
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gem_set_domain(fd, handle, I915_GEM_DOMAIN_GTT, I915_GEM_DOMAIN_GTT);
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for (i = 0; i < OBJ_SIZE/4; i++)
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data[i] = i;
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munmap(data, OBJ_SIZE);
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return handle;
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}
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igt_simple_main
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{
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int fd;
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int i;
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uint32_t handle;
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uint32_t *ptr;
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igt_skip_on_simulation();
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fd = drm_open_driver(DRIVER_INTEL);
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handle = gem_create(fd, OBJ_SIZE);
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/* touch one page */
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ptr = gem_mmap__gtt(fd, handle, OBJ_SIZE, PROT_READ | PROT_WRITE);
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gem_set_domain(fd, handle, I915_GEM_DOMAIN_GTT, I915_GEM_DOMAIN_GTT);
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*ptr = 0xdeadbeef;
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munmap(ptr, OBJ_SIZE);
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gem_close(fd, handle);
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/* stirr up the page allocator a bit. */
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ptr = malloc(OBJ_SIZE);
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igt_assert(ptr);
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memset(ptr, 0x1, OBJ_SIZE);
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handle = create_bo(fd);
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/* Read a bunch of random subsets of the data and check that they come
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* out right.
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*/
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gem_read(fd, handle, 0, ptr, OBJ_SIZE);
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for (i = 0; i < OBJ_SIZE/4; i++)
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igt_assert(ptr[i] == i);
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close(fd);
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}
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