Break up request coalescing by submitting a queue of requests from
different contexts. This makes sure that we mark all ready but not yet
submitted-to-hw requests as completed/EIO upon wedging.
Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Cc: Michał Winiarski <michal.winiarski@xxxxxxxxx>
---
tests/gem_eio.c | 72 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 72 insertions(+)
diff --git a/tests/gem_eio.c b/tests/gem_eio.c
index 0fa98032..608b2dfd 100644
--- a/tests/gem_eio.c
+++ b/tests/gem_eio.c
@@ -207,6 +207,75 @@ static void test_inflight(int fd)
}
}
+static uint32_t __gem_context_create(int fd)
+{
+ struct drm_i915_gem_context_create create;
+
+ memset(&create, 0, sizeof(create));
+ if (ioctl(fd, DRM_IOCTL_I915_GEM_CONTEXT_CREATE, &create))
+ return 0;
+
+ return create.ctx_id;
+}
+
+static void test_inflight_contexts(int fd)
+{
+ struct drm_i915_gem_execbuffer2 execbuf;
+ struct drm_i915_gem_exec_object2 obj[2];
+ uint32_t bbe = MI_BATCH_BUFFER_END;
+ unsigned int engine;
+ uint32_t ctx[64];
+ int fence[64];
+
+ igt_require(gem_has_exec_fence(fd));
+
+ ctx[0] = __gem_context_create(fd);
+ igt_require(ctx[0]);
+ for (unsigned int n = 1; n < ARRAY_SIZE(ctx); n++)
+ ctx[n] = gem_context_create(fd);
+
+ memset(obj, 0, sizeof(obj));
+ obj[0].flags = EXEC_OBJECT_WRITE;
+ obj[1].handle = gem_create(fd, 4096);
+ gem_write(fd, obj[1].handle, 0, &bbe, sizeof(bbe));
+
+ for_each_engine(fd, engine) {
+ igt_hang_t hang;
+
+ igt_debug("Starting %s on engine '%s'\n", __func__, e__->name);
+ igt_require(i915_reset_control(false));
+
+ hang = igt_hang_ring(fd, engine);
+ obj[0].handle = hang.handle;
+
+ memset(&execbuf, 0, sizeof(execbuf));
+ execbuf.buffers_ptr = to_user_pointer(obj);
+ execbuf.buffer_count = 2;
+ execbuf.flags = engine | I915_EXEC_FENCE_OUT;
+
+ for (unsigned int n = 0; n < ARRAY_SIZE(fence); n++) {
+ execbuf.rsvd1 = ctx[n];
+ gem_execbuf_wr(fd, &execbuf);
+ fence[n] = execbuf.rsvd2 >> 32;
+ igt_assert(fence[n] != -1);
+ }
+
+ igt_post_hang_ring(fd, hang);
+
+ igt_assert_eq(__gem_wait(fd, obj[1].handle, -1), 0);
+ for (unsigned int n = 0; n < ARRAY_SIZE(fence); n++) {
+ igt_assert_eq(sync_fence_status(fence[n]), -EIO);
+ close(fence[n]);
+ }
+
+ igt_assert(i915_reset_control(true));
+ trigger_reset(fd);
+ }
+
+ for (unsigned int n = 0; n < ARRAY_SIZE(ctx); n++)
+ gem_context_destroy(fd, ctx[n]);
+}
+
static void test_inflight_external(int fd)
{
struct drm_i915_gem_execbuffer2 execbuf;
@@ -375,6 +444,9 @@ igt_main
igt_subtest("in-flight")
test_inflight(fd);
+ igt_subtest("in-flight-contexts")
+ test_inflight_contexts(fd);
+
igt_subtest("in-flight-external")
test_inflight_external(fd);
--
2.14.1
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