Simply check that we support parsing of batches as large as the uAPI
allows.
Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Cc: Mika Kuoppala <mika.kuoppala@xxxxxxxxxxxxxxx>
---
Try a few intermediate object sizes since CI machines do not have enough
memory to reach the upper bounds of the uAPI.
---
tests/i915/gen9_exec_parse.c | 47 ++++++++++++++++++++++++++++++++++++
1 file changed, 47 insertions(+)
diff --git a/tests/i915/gen9_exec_parse.c b/tests/i915/gen9_exec_parse.c
index 8cd82f568..f735e7e1c 100644
--- a/tests/i915/gen9_exec_parse.c
+++ b/tests/i915/gen9_exec_parse.c
@@ -566,6 +566,50 @@ static void test_bb_start(const int i915, const uint32_t handle, int test)
gem_close(i915, target_bo);
}
+static void test_bb_large(int i915)
+{
+ const uint32_t bbe = MI_BATCH_BUFFER_END;
+ static const uint32_t sizes[] = {
+ (1ull << 30) - 4096,
+ (1ull << 30) + 4096,
+ (2ull << 30) - 4096,
+ (2ull << 30) + 4096,
+ (3ull << 30) - 4096,
+ (3ull << 30) + 4096,
+ (4ull << 30) - 4096,
+ };
+ struct drm_i915_gem_exec_object2 obj = {};
+ struct drm_i915_gem_execbuffer2 execbuf = {
+ .buffers_ptr = to_user_pointer(&obj),
+ .buffer_count = 1,
+ .flags = I915_EXEC_BLT,
+ };
+ uint64_t required, total;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(sizes); i++) {
+ if (!__intel_check_memory(2, sizes[i], CHECK_RAM,
+ &required, &total))
+ break;
+
+ igt_debug("Using object size %#x\n", sizes[i]);
+ obj.handle = gem_create(i915, sizes[i]),
+ gem_write(i915, obj.handle, sizes[i] - 64, &bbe, sizeof(bbe));
+
+ execbuf.batch_start_offset = 0;
+ igt_assert_eq(__checked_execbuf(i915, &execbuf), 0);
+
+ execbuf.batch_start_offset = sizes[i] - 64;
+ igt_assert_eq(__checked_execbuf(i915, &execbuf), 0);
+
+ gem_close(i915, obj.handle);
+ }
+
+ igt_require_f(i > 0 && sizes[i - 1] > 1ull << 31,
+ "Insufficient free memory, require at least %'"PRIu64"MiB but only have %'"PRIu64"MiB available",
+ required >> 20, total >> 20);
+}
+
static void test_bb_chained(const int i915, const uint32_t handle)
{
const uint32_t batch[] = {
@@ -1053,6 +1097,9 @@ igt_main
igt_subtest("bb-start-far")
test_bb_start(i915, handle, BB_START_FAR);
+ igt_subtest("bb-large")
+ test_bb_large(i915);
+
igt_fixture {
igt_stop_hang_detector();
gem_close(i915, handle);
--
2.28.0
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