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124 lines
2.9 KiB
124 lines
2.9 KiB
/*
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* Copyright (c) 2012 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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* Mika Kuoppala <mika.kuoppala@intel.com>
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*/
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#include "igt.h"
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#include <stdlib.h>
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#include <string.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <pthread.h>
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#include "intel_bufmgr.h"
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IGT_TEST_DESCRIPTION("Check parallel access to tiled memory.");
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/* Testcase: check parallel access to tiled memory
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*
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* Parallel access to tiled memory caused sigbus
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*/
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#define NUM_THREADS 2
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#define WIDTH 4096
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#define HEIGHT 4096
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struct thread_ctx {
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drm_intel_bo *bo;
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};
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static drm_intel_bufmgr *bufmgr;
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static struct thread_ctx tctx[NUM_THREADS];
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static void *copy_fn(void *p)
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{
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unsigned char *buf;
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struct thread_ctx *c = p;
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buf = malloc(WIDTH * HEIGHT);
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if (buf == NULL)
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return (void *)1;
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memcpy(buf, c->bo->virtual, WIDTH * HEIGHT);
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free(buf);
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return (void *)0;
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}
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static int copy_tile_threaded(drm_intel_bo *bo)
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{
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int i;
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int r;
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pthread_t thr[NUM_THREADS];
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void *status;
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for (i = 0; i < NUM_THREADS; i++) {
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tctx[i].bo = bo;
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r = pthread_create(&thr[i], NULL, copy_fn, (void *)&tctx[i]);
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igt_assert_eq(r, 0);
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}
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for (i = 0; i < NUM_THREADS; i++) {
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pthread_join(thr[i], &status);
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igt_assert(status == 0);
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}
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return 0;
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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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drm_intel_bo *bo;
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uint32_t tiling_mode = I915_TILING_Y;
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unsigned long pitch = 0;
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int r;
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igt_skip_on_simulation();
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fd = drm_open_driver(DRIVER_INTEL);
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igt_assert(fd >= 0);
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bufmgr = drm_intel_bufmgr_gem_init(fd, 4096);
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igt_assert(bufmgr);
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bo = drm_intel_bo_alloc_tiled(bufmgr, "mmap bo", WIDTH, HEIGHT, 1,
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&tiling_mode, &pitch, 0);
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igt_assert(bo);
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r = drm_intel_gem_bo_map_gtt(bo);
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igt_assert(!r);
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r = copy_tile_threaded(bo);
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igt_assert(!r);
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r = drm_intel_gem_bo_unmap_gtt(bo);
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igt_assert(!r);
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drm_intel_bo_unreference(bo);
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drm_intel_bufmgr_destroy(bufmgr);
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close(fd);
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}
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