diff options
Diffstat (limited to 'tests/i915/gem_mmap_gtt.c')
| -rw-r--r-- | tests/i915/gem_mmap_gtt.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/tests/i915/gem_mmap_gtt.c b/tests/i915/gem_mmap_gtt.c index 6f3a9c36..8eff9185 100644 --- a/tests/i915/gem_mmap_gtt.c +++ b/tests/i915/gem_mmap_gtt.c @@ -323,6 +323,44 @@ test_pf_nonblock(int i915) } static void +test_isolation(int i915) +{ + struct drm_i915_gem_mmap_gtt mmap_arg; + int A = gem_reopen_driver(i915); + int B = gem_reopen_driver(i915); + uint64_t offset_a, offset_b; + uint32_t a, b; + void *ptr; + + a = gem_create(A, 4096); + b = gem_open(B, gem_flink(A, a)); + + mmap_arg.handle = a; + do_ioctl(A, DRM_IOCTL_I915_GEM_MMAP_GTT, &mmap_arg); + offset_a = mmap_arg.offset; + + mmap_arg.handle = b; + do_ioctl(B, DRM_IOCTL_I915_GEM_MMAP_GTT, &mmap_arg); + offset_b = mmap_arg.offset; + + igt_info("A: {fd:%d, handle:%d, offset:%"PRIx64"}\n", + A, a, offset_a); + igt_info("B: {fd:%d, handle:%d, offset:%"PRIx64"}\n", + B, b, offset_b); + + close(B); + + ptr = mmap64(0, 4096, PROT_READ, MAP_SHARED, A, offset_a); + igt_assert(ptr != MAP_FAILED); + munmap(ptr, 4096); + + close(A); + + ptr = mmap64(0, 4096, PROT_READ, MAP_SHARED, A, offset_a); + igt_assert(ptr == MAP_FAILED); +} + +static void test_write_gtt(int fd) { uint32_t dst; @@ -945,6 +983,8 @@ igt_main test_write_cpu_read_gtt(fd); igt_subtest("basic-wc") test_wc(fd); + igt_subtest("isolation") + test_isolation(fd); igt_subtest("pf-nonblock") test_pf_nonblock(fd); |