| /* |
| * Copyright © 2013 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: |
| * Chris Wilson <chris@chris-wilson.co.uk> |
| * |
| */ |
| |
| #include "igt.h" |
| #include <pthread.h> |
| #include <unistd.h> |
| #include <signal.h> |
| #include <stdlib.h> |
| #include <stdint.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 <sys/time.h> |
| #include <sys/syscall.h> |
| #include "drm.h" |
| |
| #define OBJECT_SIZE (256 * 1024) |
| |
| #define COPY_BLT_CMD (2<<29|0x53<<22|0x6) |
| #define BLT_WRITE_ALPHA (1<<21) |
| #define BLT_WRITE_RGB (1<<20) |
| |
| static uint32_t devid; |
| static bool has_64bit_relocations; |
| |
| #define gettid() syscall(__NR_gettid) |
| #define sigev_notify_thread_id _sigev_un._tid |
| |
| static void selfcopy(int fd, uint32_t handle, int loops) |
| { |
| struct drm_i915_gem_relocation_entry reloc[2]; |
| struct drm_i915_gem_exec_object2 gem_exec[2]; |
| struct drm_i915_gem_execbuffer2 execbuf; |
| struct drm_i915_gem_pwrite gem_pwrite; |
| struct drm_i915_gem_create create; |
| uint32_t buf[16], *b = buf; |
| |
| memset(reloc, 0, sizeof(reloc)); |
| |
| *b = COPY_BLT_CMD | BLT_WRITE_ALPHA | BLT_WRITE_RGB; |
| if (has_64bit_relocations) |
| *b += 2; |
| b++; |
| *b++ = 0xcc << 16 | 1 << 25 | 1 << 24 | (4*1024); |
| *b++ = 0; |
| *b++ = 1 << 16 | 1024; |
| |
| reloc[0].offset = (b - buf) * sizeof(*b); |
| reloc[0].target_handle = handle; |
| reloc[0].read_domains = I915_GEM_DOMAIN_RENDER; |
| reloc[0].write_domain = I915_GEM_DOMAIN_RENDER; |
| *b++ = 0; |
| if (has_64bit_relocations) |
| *b++ = 0; |
| |
| *b++ = 512 << 16; |
| *b++ = 4*1024; |
| |
| reloc[1].offset = (b - buf) * sizeof(*b); |
| reloc[1].target_handle = handle; |
| reloc[1].read_domains = I915_GEM_DOMAIN_RENDER; |
| reloc[1].write_domain = 0; |
| *b++ = 0; |
| if (has_64bit_relocations) |
| *b++ = 0; |
| |
| *b++ = MI_BATCH_BUFFER_END; |
| *b++ = 0; |
| |
| memset(gem_exec, 0, sizeof(gem_exec)); |
| gem_exec[0].handle = handle; |
| |
| memset(&create, 0, sizeof(create)); |
| create.handle = 0; |
| create.size = 4096; |
| drmIoctl(fd, DRM_IOCTL_I915_GEM_CREATE, &create); |
| gem_exec[1].handle = create.handle; |
| gem_exec[1].relocation_count = 2; |
| gem_exec[1].relocs_ptr = to_user_pointer(reloc); |
| |
| memset(&execbuf, 0, sizeof(execbuf)); |
| execbuf.buffers_ptr = to_user_pointer(gem_exec); |
| execbuf.buffer_count = 2; |
| execbuf.batch_len = (b - buf) * sizeof(*b); |
| if (HAS_BLT_RING(devid)) |
| execbuf.flags |= I915_EXEC_BLT; |
| |
| memset(&gem_pwrite, 0, sizeof(gem_pwrite)); |
| gem_pwrite.handle = create.handle; |
| gem_pwrite.offset = 0; |
| gem_pwrite.size = sizeof(buf); |
| gem_pwrite.data_ptr = to_user_pointer(buf); |
| if (drmIoctl(fd, DRM_IOCTL_I915_GEM_PWRITE, &gem_pwrite) == 0) { |
| while (loops-- && |
| drmIoctl(fd, DRM_IOCTL_I915_GEM_EXECBUFFER2, &execbuf) == 0) |
| ; |
| } |
| |
| drmIoctl(fd, DRM_IOCTL_GEM_CLOSE, &create.handle); |
| } |
| |
| static uint32_t load(int fd) |
| { |
| uint32_t handle; |
| |
| handle = gem_create(fd, OBJECT_SIZE); |
| if (handle == 0) |
| return 0; |
| |
| selfcopy(fd, handle, 100); |
| return handle; |
| } |
| |
| static void process(int child) |
| { |
| uint32_t handle; |
| int fd; |
| |
| fd = drm_open_driver(DRIVER_INTEL); |
| |
| handle = load(fd); |
| if ((child & 63) == 63) |
| gem_read(fd, handle, 0, &handle, sizeof(handle)); |
| } |
| |
| struct crashme { |
| int fd; |
| } crashme; |
| |
| static void crashme_now(int sig) |
| { |
| close(crashme.fd); |
| } |
| |
| #define usec(x) (1000*(x)) |
| #define msec(x) usec(1000*(x)) |
| |
| static void threads(int timeout) |
| { |
| struct sigevent sev; |
| struct sigaction act; |
| struct drm_gem_open name; |
| struct itimerspec its; |
| timer_t timer; |
| int fd; |
| |
| memset(&act, 0, sizeof(act)); |
| act.sa_handler = crashme_now; |
| igt_assert(sigaction(SIGRTMIN, &act, NULL) == 0); |
| |
| memset(&sev, 0, sizeof(sev)); |
| sev.sigev_notify = SIGEV_SIGNAL | SIGEV_THREAD_ID; |
| sev.sigev_notify_thread_id = gettid(); |
| sev.sigev_signo = SIGRTMIN; |
| igt_assert(timer_create(CLOCK_MONOTONIC, &sev, &timer) == 0); |
| |
| fd = drm_open_driver(DRIVER_INTEL); |
| name.name = gem_flink(fd, gem_create(fd, OBJECT_SIZE)); |
| |
| igt_until_timeout(timeout) { |
| crashme.fd = drm_open_driver(DRIVER_INTEL); |
| |
| memset(&its, 0, sizeof(its)); |
| its.it_value.tv_nsec = msec(1) + (rand() % msec(10)); |
| igt_assert(timer_settime(timer, 0, &its, NULL) == 0); |
| |
| do { |
| if (drmIoctl(crashme.fd, DRM_IOCTL_GEM_OPEN, &name)) |
| break; |
| |
| selfcopy(crashme.fd, name.handle, 100); |
| drmIoctl(crashme.fd, DRM_IOCTL_GEM_CLOSE, &name.handle); |
| } while (1); |
| |
| close(crashme.fd); |
| } |
| |
| timer_delete(timer); |
| close(fd); |
| } |
| |
| igt_main |
| { |
| igt_skip_on_simulation(); |
| |
| igt_fixture { |
| int fd; |
| |
| fd = drm_open_driver(DRIVER_INTEL); |
| igt_require_gem(fd); |
| |
| devid = intel_get_drm_devid(fd); |
| has_64bit_relocations = intel_gen(devid) >= 8; |
| |
| igt_fork_hang_detector(fd); |
| close(fd); |
| } |
| |
| igt_subtest("basic-process") { |
| igt_fork(child, 1) |
| process(child); |
| igt_waitchildren(); |
| } |
| |
| igt_subtest("basic-threads") |
| threads(1); |
| |
| igt_subtest("process-exit") { |
| igt_fork(child, 768) |
| process(child); |
| igt_waitchildren(); |
| } |
| |
| igt_subtest("gem-close-race") |
| threads(150); |
| |
| igt_fixture |
| igt_stop_hang_detector(); |
| } |