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author | Chris Wilson <chris@chris-wilson.co.uk> | 2019-08-10 13:34:25 +0100 |
---|---|---|
committer | Chris Wilson <chris@chris-wilson.co.uk> | 2019-08-13 11:54:47 +0100 |
commit | 2180b639872f81318ebe2bbe4349ca463e755568 (patch) | |
tree | a8320106f32f3d114a2f6aaf5342f460131fa81b /tests/i915/gem_mmap_gtt.c | |
parent | 06d5765ab2daba9f8826a36ce99eb95b58d4ccf4 (diff) |
i915/gem_mmap_gtt: Test mmap_offset lifetime
Closing the object on another file should not affect the local
mmap_offset.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Abdiel Janulgue <abdiel.janulgue@linux.intel.com>
Reviewed-by: Abdiel Janulgue <abdiel.janulgue@linux.intel.com>
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); |