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263 lines
6.4 KiB
263 lines
6.4 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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* Eric Anholt <eric@anholt.net>
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*
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*/
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/** @file gem_linear_blits.c
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*
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* This is a test of doing many blits, with a working set
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* larger than the aperture size.
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*
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* The goal is to simply ensure the basics work.
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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 <drm.h>
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IGT_TEST_DESCRIPTION("Test doing many blits with a working set larger than the"
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" aperture size.");
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#define WIDTH 512
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#define HEIGHT 512
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static uint32_t linear[WIDTH*HEIGHT];
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static void
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copy(int fd, uint32_t dst, uint32_t src)
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{
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uint32_t batch[12];
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struct drm_i915_gem_relocation_entry reloc[2];
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struct drm_i915_gem_exec_object2 obj[3];
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struct drm_i915_gem_execbuffer2 exec;
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int i = 0;
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batch[i++] = XY_SRC_COPY_BLT_CMD |
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XY_SRC_COPY_BLT_WRITE_ALPHA |
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XY_SRC_COPY_BLT_WRITE_RGB;
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if (intel_gen(intel_get_drm_devid(fd)) >= 8)
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batch[i - 1] |= 8;
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else
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batch[i - 1] |= 6;
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batch[i++] = (3 << 24) | /* 32 bits */
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(0xcc << 16) | /* copy ROP */
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WIDTH*4;
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batch[i++] = 0; /* dst x1,y1 */
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batch[i++] = (HEIGHT << 16) | WIDTH; /* dst x2,y2 */
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batch[i++] = 0; /* dst reloc */
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if (intel_gen(intel_get_drm_devid(fd)) >= 8)
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batch[i++] = 0;
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batch[i++] = 0; /* src x1,y1 */
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batch[i++] = WIDTH*4;
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batch[i++] = 0; /* src reloc */
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if (intel_gen(intel_get_drm_devid(fd)) >= 8)
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batch[i++] = 0;
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batch[i++] = MI_BATCH_BUFFER_END;
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batch[i++] = MI_NOOP;
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memset(reloc, 0, sizeof(reloc));
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reloc[0].target_handle = dst;
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reloc[0].delta = 0;
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reloc[0].offset = 4 * sizeof(batch[0]);
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reloc[0].presumed_offset = 0;
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reloc[0].read_domains = I915_GEM_DOMAIN_RENDER;
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reloc[0].write_domain = I915_GEM_DOMAIN_RENDER;
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reloc[1].target_handle = src;
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reloc[1].delta = 0;
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reloc[1].offset = 7 * sizeof(batch[0]);
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if (intel_gen(intel_get_drm_devid(fd)) >= 8)
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reloc[1].offset += sizeof(batch[0]);
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reloc[1].presumed_offset = 0;
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reloc[1].read_domains = I915_GEM_DOMAIN_RENDER;
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reloc[1].write_domain = 0;
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memset(obj, 0, sizeof(obj));
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obj[0].handle = dst;
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obj[1].handle = src;
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obj[2].handle = gem_create(fd, 4096);
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gem_write(fd, obj[2].handle, 0, batch, i * sizeof(batch[0]));
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obj[2].relocation_count = 2;
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obj[2].relocs_ptr = to_user_pointer(reloc);
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memset(&exec, 0, sizeof(exec));
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exec.buffers_ptr = to_user_pointer(obj);
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exec.buffer_count = 3;
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exec.batch_len = i * sizeof(batch[0]);
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exec.flags = gem_has_blt(fd) ? I915_EXEC_BLT : 0;
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gem_execbuf(fd, &exec);
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gem_close(fd, obj[2].handle);
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}
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static uint32_t
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create_bo(int fd, uint32_t val)
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{
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uint32_t handle;
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int i;
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handle = gem_create(fd, sizeof(linear));
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/* Fill the BO with dwords starting at val */
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for (i = 0; i < WIDTH*HEIGHT; i++)
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linear[i] = val++;
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gem_write(fd, handle, 0, linear, sizeof(linear));
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return handle;
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}
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static void
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check_bo(int fd, uint32_t handle, uint32_t val)
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{
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int num_errors;
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int i;
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gem_read(fd, handle, 0, linear, sizeof(linear));
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num_errors = 0;
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for (i = 0; i < WIDTH*HEIGHT; i++) {
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if (linear[i] != val && num_errors++ < 32)
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igt_warn("[%08x] Expected 0x%08x, found 0x%08x (difference 0x%08x)\n",
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i * 4, val, linear[i], val ^ linear[i]);
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val++;
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}
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igt_assert_eq(num_errors, 0);
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}
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static void run_test(int fd, int count)
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{
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uint32_t *handle, *start_val;
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uint32_t start = 0;
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int i;
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igt_debug("Using %d 1MiB buffers\n", count);
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handle = malloc(sizeof(uint32_t)*count*2);
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start_val = handle + count;
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for (i = 0; i < count; i++) {
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handle[i] = create_bo(fd, start);
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start_val[i] = start;
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start += 1024 * 1024 / 4;
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}
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igt_debug("Verifying initialisation...\n");
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for (i = 0; i < count; i++)
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check_bo(fd, handle[i], start_val[i]);
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igt_debug("Cyclic blits, forward...\n");
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for (i = 0; i < count * 4; i++) {
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int src = i % count;
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int dst = (i + 1) % count;
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copy(fd, handle[dst], handle[src]);
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start_val[dst] = start_val[src];
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}
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for (i = 0; i < count; i++)
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check_bo(fd, handle[i], start_val[i]);
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igt_debug("Cyclic blits, backward...\n");
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for (i = 0; i < count * 4; i++) {
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int src = (i + 1) % count;
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int dst = i % count;
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copy(fd, handle[dst], handle[src]);
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start_val[dst] = start_val[src];
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}
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for (i = 0; i < count; i++)
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check_bo(fd, handle[i], start_val[i]);
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igt_debug("Random blits...\n");
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for (i = 0; i < count * 4; i++) {
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int src = random() % count;
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int dst = random() % count;
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if (src == dst)
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continue;
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copy(fd, handle[dst], handle[src]);
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start_val[dst] = start_val[src];
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}
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for (i = 0; i < count; i++) {
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check_bo(fd, handle[i], start_val[i]);
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gem_close(fd, handle[i]);
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}
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free(handle);
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}
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#define MAX_32b ((1ull << 32) - 4096)
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igt_main
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{
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int fd = 0;
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igt_fixture {
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fd = drm_open_driver(DRIVER_INTEL);
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igt_require_gem(fd);
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}
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igt_subtest("basic")
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run_test(fd, 2);
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igt_subtest("normal") {
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uint64_t count;
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count = gem_aperture_size(fd);
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if (count >> 32)
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count = MAX_32b;
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count = 3 * count / (1024*1024) / 2;
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igt_require(count > 1);
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intel_require_memory(count, sizeof(linear), CHECK_RAM);
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run_test(fd, count);
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}
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igt_subtest("interruptible") {
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uint64_t count;
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count = gem_aperture_size(fd);
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if (count >> 32)
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count = MAX_32b;
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count = 3 * count / (1024*1024) / 2;
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igt_require(count > 1);
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intel_require_memory(count, sizeof(linear), CHECK_RAM);
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igt_fork_signal_helper();
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run_test(fd, count);
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igt_stop_signal_helper();
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}
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}
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