| /* |
| * Copyright © 2007, 2011, 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: |
| * Eric Anholt <eric@anholt.net> |
| * Daniel Vetter <daniel.vetter@ffwll.ch> |
| * |
| */ |
| |
| #ifndef ANDROID |
| #define _GNU_SOURCE |
| #else |
| #include <libgen.h> |
| #endif |
| #include <stdio.h> |
| #include <fcntl.h> |
| #include <sys/stat.h> |
| #include <sys/ioctl.h> |
| #include <string.h> |
| #include <sys/mman.h> |
| #include <signal.h> |
| #include <pciaccess.h> |
| #include <getopt.h> |
| #include <stdlib.h> |
| #include <unistd.h> |
| #include <sys/wait.h> |
| #include <sys/types.h> |
| #include <sys/syscall.h> |
| #include <sys/utsname.h> |
| #include <termios.h> |
| |
| #include "drmtest.h" |
| #include "i915_drm.h" |
| #include "intel_chipset.h" |
| #include "intel_gpu_tools.h" |
| #include "igt_debugfs.h" |
| #include "../version.h" |
| #include "config.h" |
| #include "intel_reg.h" |
| #include "ioctl_wrappers.h" |
| |
| /* This file contains a bunch of wrapper functions to directly use gem ioctls. |
| * Mostly useful to write kernel tests. */ |
| |
| static int |
| is_intel(int fd) |
| { |
| struct drm_i915_getparam gp; |
| int devid; |
| |
| gp.param = I915_PARAM_CHIPSET_ID; |
| gp.value = &devid; |
| |
| if (ioctl(fd, DRM_IOCTL_I915_GETPARAM, &gp, sizeof(gp))) |
| return 0; |
| |
| return IS_INTEL(devid); |
| } |
| |
| #define LOCAL_I915_EXEC_VEBOX (4 << 0) |
| /* Ensure the gpu is idle by launching a nop execbuf and stalling for it. */ |
| void gem_quiescent_gpu(int fd) |
| { |
| uint32_t batch[2] = {MI_BATCH_BUFFER_END, 0}; |
| uint32_t handle; |
| struct drm_i915_gem_execbuffer2 execbuf; |
| struct drm_i915_gem_exec_object2 gem_exec[1]; |
| |
| handle = gem_create(fd, 4096); |
| gem_write(fd, handle, 0, batch, sizeof(batch)); |
| |
| gem_exec[0].handle = handle; |
| gem_exec[0].relocation_count = 0; |
| gem_exec[0].relocs_ptr = 0; |
| gem_exec[0].alignment = 0; |
| gem_exec[0].offset = 0; |
| gem_exec[0].flags = 0; |
| gem_exec[0].rsvd1 = 0; |
| gem_exec[0].rsvd2 = 0; |
| |
| execbuf.buffers_ptr = (uintptr_t)gem_exec; |
| execbuf.buffer_count = 1; |
| execbuf.batch_start_offset = 0; |
| execbuf.batch_len = 8; |
| execbuf.cliprects_ptr = 0; |
| execbuf.num_cliprects = 0; |
| execbuf.DR1 = 0; |
| execbuf.DR4 = 0; |
| execbuf.flags = 0; |
| i915_execbuffer2_set_context_id(execbuf, 0); |
| execbuf.rsvd2 = 0; |
| |
| do_ioctl(fd, DRM_IOCTL_I915_GEM_EXECBUFFER2, &execbuf); |
| |
| if (gem_has_blt(fd)) { |
| execbuf.flags = I915_EXEC_BLT; |
| do_ioctl(fd, DRM_IOCTL_I915_GEM_EXECBUFFER2, &execbuf); |
| } |
| |
| if (gem_has_bsd(fd)) { |
| execbuf.flags = I915_EXEC_BSD; |
| do_ioctl(fd, DRM_IOCTL_I915_GEM_EXECBUFFER2, &execbuf); |
| } |
| |
| if (gem_has_vebox(fd)) { |
| execbuf.flags = LOCAL_I915_EXEC_VEBOX; |
| do_ioctl(fd, DRM_IOCTL_I915_GEM_EXECBUFFER2, &execbuf); |
| } |
| |
| gem_sync(fd, handle); |
| igt_drop_caches_set(DROP_RETIRE); |
| gem_close(fd, handle); |
| } |
| |
| /** |
| * drm_get_card: |
| * |
| * Get an intel card number for use in /dev or /sys |
| * |
| * Returns: -1 on error |
| */ |
| int drm_get_card(void) |
| { |
| char *name; |
| int i, fd; |
| |
| for (i = 0; i < 16; i++) { |
| int ret; |
| |
| ret = asprintf(&name, "/dev/dri/card%u", i); |
| igt_assert(ret != -1); |
| |
| fd = open(name, O_RDWR); |
| free(name); |
| |
| if (fd == -1) |
| continue; |
| |
| if (!is_intel(fd)) { |
| close(fd); |
| continue; |
| } |
| |
| close(fd); |
| return i; |
| } |
| |
| igt_skip("No intel gpu found\n"); |
| |
| return -1; |
| } |
| |
| /** Open the first DRM device we can find, searching up to 16 device nodes */ |
| static int __drm_open_any(void) |
| { |
| char *name; |
| int ret, fd; |
| |
| ret = asprintf(&name, "/dev/dri/card%d", drm_get_card()); |
| if (ret == -1) |
| return -1; |
| |
| fd = open(name, O_RDWR); |
| free(name); |
| |
| if (!is_intel(fd)) { |
| close(fd); |
| fd = -1; |
| } |
| |
| return fd; |
| } |
| |
| static int __drm_open_any_render(void) |
| { |
| char *name; |
| int i, fd; |
| |
| for (i = 128; i < (128 + 16); i++) { |
| int ret; |
| |
| ret = asprintf(&name, "/dev/dri/renderD%u", i); |
| igt_assert(ret != -1); |
| |
| fd = open(name, O_RDWR); |
| free(name); |
| |
| if (fd == -1) |
| continue; |
| |
| if (!is_intel(fd)) { |
| close(fd); |
| fd = -1; |
| continue; |
| } |
| |
| return fd; |
| } |
| |
| return fd; |
| } |
| |
| static int at_exit_drm_fd = -1; |
| static int at_exit_drm_render_fd = -1; |
| |
| static void quiescent_gpu_at_exit(int sig) |
| { |
| if (at_exit_drm_fd < 0) |
| return; |
| |
| gem_quiescent_gpu(at_exit_drm_fd); |
| close(at_exit_drm_fd); |
| at_exit_drm_fd = -1; |
| } |
| |
| static void quiescent_gpu_at_exit_render(int sig) |
| { |
| if (at_exit_drm_render_fd < 0) |
| return; |
| |
| gem_quiescent_gpu(at_exit_drm_render_fd); |
| close(at_exit_drm_render_fd); |
| at_exit_drm_render_fd = -1; |
| } |
| |
| int drm_open_any(void) |
| { |
| static int open_count; |
| int fd = __drm_open_any(); |
| |
| igt_require(fd >= 0); |
| |
| if (__sync_fetch_and_add(&open_count, 1)) |
| return fd; |
| |
| gem_quiescent_gpu(fd); |
| at_exit_drm_fd = dup(fd); |
| igt_install_exit_handler(quiescent_gpu_at_exit); |
| |
| return fd; |
| } |
| |
| int drm_open_any_render(void) |
| { |
| static int open_count; |
| int fd = __drm_open_any_render(); |
| |
| /* no render nodes, fallback to drm_open_any() */ |
| if (fd == -1) |
| return drm_open_any(); |
| |
| if (__sync_fetch_and_add(&open_count, 1)) |
| return fd; |
| |
| at_exit_drm_render_fd = dup(fd); |
| gem_quiescent_gpu(fd); |
| igt_install_exit_handler(quiescent_gpu_at_exit_render); |
| |
| return fd; |
| } |
| |
| /* signal interrupt helpers */ |
| static struct igt_helper_process signal_helper; |
| long long int sig_stat; |
| static void __attribute__((noreturn)) signal_helper_process(pid_t pid) |
| { |
| /* Interrupt the parent process at 500Hz, just to be annoying */ |
| while (1) { |
| usleep(1000 * 1000 / 500); |
| if (kill(pid, SIGUSR1)) /* Parent has died, so must we. */ |
| exit(0); |
| } |
| } |
| |
| static void sig_handler(int i) |
| { |
| sig_stat++; |
| } |
| |
| void igt_fork_signal_helper(void) |
| { |
| if (igt_only_list_subtests()) |
| return; |
| |
| signal(SIGUSR1, sig_handler); |
| |
| igt_fork_helper(&signal_helper) { |
| signal_helper_process(getppid()); |
| } |
| } |
| |
| void igt_stop_signal_helper(void) |
| { |
| if (igt_only_list_subtests()) |
| return; |
| |
| igt_stop_helper(&signal_helper); |
| |
| sig_stat = 0; |
| } |
| |
| bool igt_env_set(const char *env_var, bool default_value) |
| { |
| char *val; |
| |
| val = getenv(env_var); |
| if (!val) |
| return default_value; |
| |
| return atoi(val) != 0; |
| } |
| |
| bool drmtest_dump_aub(void) |
| { |
| static int dump_aub = -1; |
| |
| if (dump_aub == -1) |
| dump_aub = igt_env_set("IGT_DUMP_AUB", false); |
| |
| return dump_aub; |
| } |
| |
| /* other helpers */ |
| void igt_exchange_int(void *array, unsigned i, unsigned j) |
| { |
| int *int_arr, tmp; |
| int_arr = array; |
| |
| tmp = int_arr[i]; |
| int_arr[i] = int_arr[j]; |
| int_arr[j] = tmp; |
| } |
| |
| void igt_permute_array(void *array, unsigned size, |
| void (*exchange_func)(void *array, |
| unsigned i, |
| unsigned j)) |
| { |
| int i; |
| |
| for (i = size - 1; i > 1; i--) { |
| /* yes, not perfectly uniform, who cares */ |
| long l = random() % (i +1); |
| if (i != l) |
| exchange_func(array, i, l); |
| } |
| } |
| |
| void igt_progress(const char *header, uint64_t i, uint64_t total) |
| { |
| int divider = 200; |
| |
| if (!isatty(fileno(stderr))) |
| return; |
| |
| if (i+1 >= total) { |
| fprintf(stderr, "\r%s100%%\n", header); |
| return; |
| } |
| |
| if (total / 200 == 0) |
| divider = 1; |
| |
| /* only bother updating about every 0.5% */ |
| if (i % (total / divider) == 0 || i+1 >= total) { |
| fprintf(stderr, "\r%s%3llu%%", header, |
| (long long unsigned) i * 100 / total); |
| } |
| } |
| |
| /* mappable aperture trasher helper */ |
| drm_intel_bo **trash_bos; |
| int num_trash_bos; |
| |
| void igt_init_aperture_trashers(drm_intel_bufmgr *bufmgr) |
| { |
| int i; |
| |
| num_trash_bos = gem_mappable_aperture_size() / (1024*1024); |
| |
| trash_bos = malloc(num_trash_bos * sizeof(drm_intel_bo *)); |
| igt_assert(trash_bos); |
| |
| for (i = 0; i < num_trash_bos; i++) |
| trash_bos[i] = drm_intel_bo_alloc(bufmgr, "trash bo", 1024*1024, 4096); |
| } |
| |
| void igt_trash_aperture(void) |
| { |
| int i; |
| uint8_t *gtt_ptr; |
| |
| for (i = 0; i < num_trash_bos; i++) { |
| drm_intel_gem_bo_map_gtt(trash_bos[i]); |
| gtt_ptr = trash_bos[i]->virtual; |
| *gtt_ptr = 0; |
| drm_intel_gem_bo_unmap_gtt(trash_bos[i]); |
| } |
| } |
| |
| void igt_cleanup_aperture_trashers(void) |
| { |
| int i; |
| |
| for (i = 0; i < num_trash_bos; i++) |
| drm_intel_bo_unreference(trash_bos[i]); |
| |
| free(trash_bos); |
| } |
| |
| void igt_system_suspend_autoresume(void) |
| { |
| int ret; |
| |
| /* FIXME: Simulation doesn't like suspend/resume, and not even a lighter |
| * approach using /sys/power/pm_test to just test our driver's callbacks |
| * seems to fare better. We need to investigate what's going on. */ |
| igt_skip_on_simulation(); |
| |
| ret = system("rtcwake -s 30 -m mem"); |
| igt_assert(ret == 0); |
| } |
| |
| void igt_drop_root(void) |
| { |
| igt_assert(getuid() == 0); |
| |
| igt_assert(setgid(2) == 0); |
| igt_assert(setuid(2) == 0); |
| |
| igt_assert(getgid() == 2); |
| igt_assert(getuid() == 2); |
| } |
| |
| void igt_wait_for_keypress(void) |
| { |
| struct termios oldt, newt; |
| |
| if (!isatty(STDIN_FILENO)) |
| return; |
| |
| tcgetattr ( STDIN_FILENO, &oldt ); |
| newt = oldt; |
| newt.c_lflag &= ~( ICANON | ECHO ); |
| tcsetattr ( STDIN_FILENO, TCSANOW, &newt ); |
| getchar(); |
| tcsetattr ( STDIN_FILENO, TCSANOW, &oldt ); |
| } |