| /* |
| * Copyright © 2008 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> |
| * |
| */ |
| |
| #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" |
| |
| #define OBJECT_SIZE 16384 |
| #define PAGE_SIZE 4096 |
| int fd; |
| |
| static void |
| test_huge_bo(int huge) |
| { |
| uint64_t huge_object_size, last_offset, i; |
| unsigned check = CHECK_RAM; |
| char *ptr_cpu; |
| char *cpu_pattern; |
| uint32_t bo; |
| int loop; |
| |
| switch (huge) { |
| case -1: |
| huge_object_size = gem_mappable_aperture_size() / 2; |
| break; |
| case 0: |
| huge_object_size = gem_mappable_aperture_size() + PAGE_SIZE; |
| break; |
| case 1: |
| huge_object_size = gem_aperture_size(fd) + PAGE_SIZE; |
| break; |
| case 2: |
| huge_object_size = (intel_get_total_ram_mb() + 1) << 20; |
| check |= CHECK_SWAP; |
| break; |
| default: |
| return; |
| } |
| intel_require_memory(1, huge_object_size, check); |
| |
| last_offset = huge_object_size - PAGE_SIZE; |
| |
| cpu_pattern = malloc(PAGE_SIZE); |
| igt_assert(cpu_pattern); |
| for (i = 0; i < PAGE_SIZE; i++) |
| cpu_pattern[i] = i; |
| |
| bo = gem_create(fd, huge_object_size); |
| |
| /* Obtain CPU mapping for the object. */ |
| ptr_cpu = __gem_mmap__cpu(fd, bo, 0, huge_object_size, |
| PROT_READ | PROT_WRITE); |
| igt_require(ptr_cpu); |
| gem_set_domain(fd, bo, I915_GEM_DOMAIN_CPU, I915_GEM_DOMAIN_CPU); |
| gem_close(fd, bo); |
| |
| igt_debug("Exercising %'llu bytes\n", (long long)huge_object_size); |
| |
| loop = 0; |
| do { |
| /* Write first page through the mapping and |
| * assert reading it back works. |
| */ |
| memcpy(ptr_cpu, cpu_pattern, PAGE_SIZE); |
| igt_assert(memcmp(ptr_cpu, cpu_pattern, PAGE_SIZE) == 0); |
| memset(ptr_cpu, 0xcc, PAGE_SIZE); |
| |
| /* Write last page through the mapping and |
| * assert reading it back works. |
| */ |
| memcpy(ptr_cpu + last_offset, cpu_pattern, PAGE_SIZE); |
| igt_assert(memcmp(ptr_cpu + last_offset, cpu_pattern, PAGE_SIZE) == 0); |
| memset(ptr_cpu + last_offset, 0xcc, PAGE_SIZE); |
| |
| /* Cross check that accessing two simultaneous pages works. */ |
| igt_assert(memcmp(ptr_cpu, ptr_cpu + last_offset, PAGE_SIZE) == 0); |
| |
| /* Force every page to be faulted and retest */ |
| for (i = 0; i < huge_object_size; i += 4096) |
| ptr_cpu[i] = i >> 12; |
| } while (loop++ == 0); |
| |
| munmap(ptr_cpu, huge_object_size); |
| free(cpu_pattern); |
| } |
| |
| igt_main |
| { |
| struct drm_i915_gem_mmap arg; |
| uint8_t expected[OBJECT_SIZE]; |
| uint8_t buf[OBJECT_SIZE]; |
| uint8_t *addr; |
| int ret; |
| |
| igt_fixture |
| fd = drm_open_driver(DRIVER_INTEL); |
| |
| igt_subtest("bad-object") { |
| memset(&arg, 0, sizeof(arg)); |
| arg.handle = 0x10101010; |
| arg.offset = 0; |
| arg.size = 4096; |
| ret = ioctl(fd, DRM_IOCTL_I915_GEM_MMAP, &arg); |
| igt_assert(ret == -1 && errno == ENOENT); |
| } |
| |
| igt_subtest("basic") { |
| arg.handle = gem_create(fd, OBJECT_SIZE); |
| arg.offset = 0; |
| arg.size = OBJECT_SIZE; |
| ret = ioctl(fd, DRM_IOCTL_I915_GEM_MMAP, &arg); |
| igt_assert(ret == 0); |
| addr = (uint8_t *)(uintptr_t)arg.addr_ptr; |
| |
| igt_info("Testing contents of newly created object.\n"); |
| memset(expected, 0, sizeof(expected)); |
| igt_assert(memcmp(addr, expected, sizeof(expected)) == 0); |
| |
| igt_info("Testing coherency of writes and mmap reads.\n"); |
| memset(buf, 0, sizeof(buf)); |
| memset(buf + 1024, 0x01, 1024); |
| memset(expected + 1024, 0x01, 1024); |
| gem_write(fd, arg.handle, 0, buf, OBJECT_SIZE); |
| igt_assert(memcmp(buf, addr, sizeof(buf)) == 0); |
| |
| igt_info("Testing that mapping stays after close\n"); |
| gem_close(fd, arg.handle); |
| igt_assert(memcmp(buf, addr, sizeof(buf)) == 0); |
| |
| igt_info("Testing unmapping\n"); |
| munmap(addr, OBJECT_SIZE); |
| } |
| |
| igt_subtest("short-mmap") { |
| igt_assert(OBJECT_SIZE > 4096); |
| arg.handle = gem_create(fd, OBJECT_SIZE); |
| addr = gem_mmap__cpu(fd, arg.handle, 0, 4096, PROT_WRITE); |
| memset(addr, 0, 4096); |
| munmap(addr, 4096); |
| gem_close(fd, arg.handle); |
| } |
| |
| igt_subtest("basic-small-bo") |
| test_huge_bo(-1); |
| igt_subtest("big-bo") |
| test_huge_bo(0); |
| igt_subtest("huge-bo") |
| test_huge_bo(1); |
| igt_subtest("swap-bo") |
| test_huge_bo(2); |
| |
| igt_fixture |
| close(fd); |
| } |