Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> writes:
> 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>
Reviewed-by: 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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