diff options
| -rw-r--r-- | tests/.gitignore | 1 | ||||
| -rw-r--r-- | tests/Makefile.sources | 1 | ||||
| -rw-r--r-- | tests/gem_madvise.c | 155 |
3 files changed, 157 insertions, 0 deletions
diff --git a/tests/.gitignore b/tests/.gitignore index bce8a426..96a20d55 100644 --- a/tests/.gitignore +++ b/tests/.gitignore @@ -48,6 +48,7 @@ gem_hangcheck_forcewake gem_largeobject gem_linear_blits gem_lut_handle +gem_madvise gem_media_fill gem_mmap gem_mmap_gtt diff --git a/tests/Makefile.sources b/tests/Makefile.sources index 4299ed92..b1010bdd 100644 --- a/tests/Makefile.sources +++ b/tests/Makefile.sources @@ -34,6 +34,7 @@ TESTS_progs_M = \ gem_flink \ gem_flink_race \ gem_linear_blits \ + gem_madvise \ gem_mmap \ gem_mmap_gtt \ gem_partial_pwrite_pread \ diff --git a/tests/gem_madvise.c b/tests/gem_madvise.c new file mode 100644 index 00000000..a7bd22c3 --- /dev/null +++ b/tests/gem_madvise.c @@ -0,0 +1,155 @@ +/* + * Copyright © 2014 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 <unistd.h> +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <fcntl.h> +#include <inttypes.h> +#include <errno.h> +#include <setjmp.h> +#include <signal.h> + +#include "drm.h" +#include "i915_drm.h" +#include "drmtest.h" + +#define OBJECT_SIZE (1024*1024) + +/* Testcase: checks that the kernel reports EFAULT when trying to use purged bo + * + */ + +static jmp_buf jmp; + +static void sigtrap(int sig) +{ + longjmp(jmp, sig); +} + +static void +dontneed_before_mmap(void) +{ + int fd = drm_open_any(); + uint32_t handle; + char *ptr; + + handle = gem_create(fd, OBJECT_SIZE); + gem_madvise(fd, handle, I915_MADV_DONTNEED); + ptr = gem_mmap(fd, handle, OBJECT_SIZE, PROT_READ | PROT_WRITE); + igt_assert(ptr == NULL); + igt_assert(errno == EFAULT); + close(fd); +} + +static void +dontneed_after_mmap(void) +{ + int fd = drm_open_any(); + uint32_t handle; + char *ptr; + + handle = gem_create(fd, OBJECT_SIZE); + ptr = gem_mmap(fd, handle, OBJECT_SIZE, PROT_READ | PROT_WRITE); + igt_assert(ptr != NULL); + gem_madvise(fd, handle, I915_MADV_DONTNEED); + close(fd); + + signal(SIGBUS, sigtrap); + switch (setjmp(jmp)) { + case SIGBUS: + break; + case 0: + *ptr = 0; + default: + igt_assert(!"reached"); + break; + } + munmap(ptr, OBJECT_SIZE); + signal(SIGBUS, SIG_DFL); +} + +static void +dontneed_before_pwrite(void) +{ + int fd = drm_open_any(); + uint32_t buf[] = { MI_BATCH_BUFFER_END, 0 }; + struct drm_i915_gem_pwrite gem_pwrite; + + gem_pwrite.handle = gem_create(fd, OBJECT_SIZE); + gem_pwrite.offset = 0; + gem_pwrite.size = sizeof(buf); + gem_pwrite.data_ptr = (uintptr_t)buf; + gem_madvise(fd, gem_pwrite.handle, I915_MADV_DONTNEED); + + igt_assert(drmIoctl(fd, DRM_IOCTL_I915_GEM_PWRITE, &gem_pwrite)); + igt_assert(errno == EFAULT); + + gem_close(fd, gem_pwrite.handle); + close(fd); +} + +static void +dontneed_before_exec(void) +{ + int fd = drm_open_any(); + struct drm_i915_gem_execbuffer2 execbuf; + struct drm_i915_gem_exec_object2 exec; + uint32_t buf[] = { MI_BATCH_BUFFER_END, 0 }; + + memset(&execbuf, 0, sizeof(execbuf)); + memset(&exec, 0, sizeof(exec)); + + exec.handle = gem_create(fd, OBJECT_SIZE); + gem_write(fd, exec.handle, 0, buf, sizeof(buf)); + gem_madvise(fd, exec.handle, I915_MADV_DONTNEED); + + execbuf.buffers_ptr = (uintptr_t)&exec; + execbuf.buffer_count = 1; + gem_execbuf(fd, &execbuf); + + gem_close(fd, exec.handle); + close(fd); +} + +igt_simple_main +{ + igt_skip_on_simulation(); + + igt_subtest("dontneed-before-mmap") + dontneed_before_mmap(); + + igt_subtest("dontneed-after-mmap") + dontneed_after_mmap(); + + igt_subtest("dontneed-before-pwrite") + dontneed_before_pwrite(); + + igt_subtest("dontneed-before-exec") + dontneed_before_exec(); +} |