diff options
author | Chris Wilson <chris@chris-wilson.co.uk> | 2017-07-24 15:17:28 +0100 |
---|---|---|
committer | Chris Wilson <chris@chris-wilson.co.uk> | 2018-05-03 11:38:23 +0100 |
commit | 1b8977e08031253d61b4641bc21e5c7a990d4a4f (patch) | |
tree | 1a607587ab0bda0a01d7d057ed9a66cddd23a972 /tests | |
parent | 43761534c6482dc67b9c3d8eeecd425ef40b3c4c (diff) |
igt/gem_exec_fence: Exercise merging fences
Execute the same batch on each engine and check that the composite fence
across all engines completes only after the batch is completed on every
engine.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Antonio Argenziano <antonio.argenziano@intel.com>
Diffstat (limited to 'tests')
-rw-r--r-- | tests/gem_exec_fence.c | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/tests/gem_exec_fence.c b/tests/gem_exec_fence.c index 60f80b0d..eb93308d 100644 --- a/tests/gem_exec_fence.c +++ b/tests/gem_exec_fence.c @@ -208,6 +208,113 @@ static void test_fence_busy(int fd, unsigned ring, unsigned flags) gem_quiescent_gpu(fd); } +static void test_fence_busy_all(int fd, unsigned flags) +{ + const int gen = intel_gen(intel_get_drm_devid(fd)); + struct drm_i915_gem_exec_object2 obj; + struct drm_i915_gem_relocation_entry reloc; + struct drm_i915_gem_execbuffer2 execbuf; + struct timespec tv; + uint32_t *batch; + unsigned int engine; + int all, i, timeout; + + gem_quiescent_gpu(fd); + + memset(&execbuf, 0, sizeof(execbuf)); + execbuf.buffers_ptr = to_user_pointer(&obj); + execbuf.buffer_count = 1; + + memset(&obj, 0, sizeof(obj)); + obj.handle = gem_create(fd, 4096); + + obj.relocs_ptr = to_user_pointer(&reloc); + obj.relocation_count = 1; + memset(&reloc, 0, sizeof(reloc)); + + batch = gem_mmap__wc(fd, obj.handle, 0, 4096, PROT_WRITE); + gem_set_domain(fd, obj.handle, + I915_GEM_DOMAIN_GTT, I915_GEM_DOMAIN_GTT); + + reloc.target_handle = obj.handle; /* recurse */ + reloc.presumed_offset = 0; + reloc.offset = sizeof(uint32_t); + reloc.delta = 0; + reloc.read_domains = I915_GEM_DOMAIN_COMMAND; + reloc.write_domain = 0; + + i = 0; + batch[i] = MI_BATCH_BUFFER_START; + if (gen >= 8) { + batch[i] |= 1 << 8 | 1; + batch[++i] = 0; + batch[++i] = 0; + } else if (gen >= 6) { + batch[i] |= 1 << 8; + batch[++i] = 0; + } else { + batch[i] |= 2 << 6; + batch[++i] = 0; + if (gen < 4) { + batch[i] |= 1; + reloc.delta = 1; + } + } + i++; + + all = -1; + for_each_engine(fd, engine) { + int fence, new; + + execbuf.flags = engine | LOCAL_EXEC_FENCE_OUT; + execbuf.rsvd2 = -1; + gem_execbuf_wr(fd, &execbuf); + fence = execbuf.rsvd2 >> 32; + igt_assert(fence != -1); + + if (all < 0) { + all = fence; + break; + } + + new = sync_fence_merge(all, fence); + igt_assert_lte(0, new); + close(all); + close(fence); + + all = new; + } + + igt_assert(gem_bo_busy(fd, obj.handle)); + igt_assert(fence_busy(all)); + + timeout = 120; + if ((flags & HANG) == 0) { + *batch = MI_BATCH_BUFFER_END; + __sync_synchronize(); + timeout = 1; + } + munmap(batch, 4096); + + if (flags & WAIT) { + struct pollfd pfd = { .fd = all, .events = POLLIN }; + igt_assert(poll(&pfd, 1, timeout*1000) == 1); + } else { + memset(&tv, 0, sizeof(tv)); + while (fence_busy(all)) + igt_assert(igt_seconds_elapsed(&tv) < timeout); + } + + igt_assert(!gem_bo_busy(fd, obj.handle)); + igt_assert_eq(sync_fence_status(all), + flags & HANG ? -EIO : SYNC_FENCE_OK); + + close(all); + gem_close(fd, obj.handle); + + gem_quiescent_gpu(fd); +} + static void test_fence_await(int fd, unsigned ring, unsigned flags) { const int gen = intel_gen(intel_get_drm_devid(fd)); @@ -1465,6 +1572,26 @@ igt_main gem_submission_print_method(i915); } + igt_subtest_group { + igt_fixture { + igt_fork_hang_detector(i915); + } + + igt_subtest("basic-busy-all") + test_fence_busy_all(i915, 0); + igt_subtest("basic-wait-all") + test_fence_busy_all(i915, WAIT); + + igt_fixture { + igt_stop_hang_detector(); + } + + igt_subtest("busy-hang-all") + test_fence_busy_all(i915, HANG); + igt_subtest("wait-hang-all") + test_fence_busy_all(i915, WAIT | HANG); + } + for (e = intel_execution_engines; e->name; e++) { igt_subtest_group { igt_fixture { |