[PATCH i-g-t v4 6/6] tests/kms_ccs: Test case for wrong aux buffer stride size

Gabriel Krisman Bertazi
2017-09-27T18:34:55Z

Two scenarios tested:
- unaligned stride
- Stride too small

Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
---
tests/kms_ccs.c | 23 ++++++++++++++++++++++-
1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/tests/kms_ccs.c b/tests/kms_ccs.c
index 2d7105eb1323..cb6e69c69ae5 100644
--- a/tests/kms_ccs.c
+++ b/tests/kms_ccs.c
@@ -35,14 +35,18 @@ enum test_flags {
TEST_BAD_ROTATION_90 = 1 << 4,
TEST_NO_AUX_BUFFER = 1 << 5,
TEST_BAD_CCS_HANDLE = 1 << 6,
+ TEST_BAD_AUX_STRIDE = 1 << 7,
};

#define TEST_FAIL_ON_ADDFB2 \
- (TEST_BAD_PIXEL_FORMAT | TEST_NO_AUX_BUFFER | TEST_BAD_CCS_HANDLE)
+ (TEST_BAD_PIXEL_FORMAT | TEST_NO_AUX_BUFFER | TEST_BAD_CCS_HANDLE | \
+ TEST_BAD_AUX_STRIDE)

enum test_fb_flags {
FB_COMPRESSED = 1 << 0,
FB_HAS_PLANE = 1 << 1,
+ FB_MISALIGN_AUX_STRIDE = 1 << 2,
+ FB_SMALL_AUX_STRIDE = 1 << 3,
};

typedef struct {
@@ -324,6 +328,14 @@ static void generate_fb(data_t *data, struct igt_fb *fb,
int ccs_pitches = ALIGN(ccs_width * 1, 128);
int ccs_offsets = size[0];

+ if (fb_flags & FB_MISALIGN_AUX_STRIDE)
+ ccs_pitches -= 64;
+ else if (fb_flags & FB_SMALL_AUX_STRIDE) {
+ igt_skip_on_f(width <= 1024,
+ "FB already has the smallest possible stride\n");
+ ccs_pitches = ALIGN(ccs_width/2, 128);
+ }
+
size[1] = ccs_pitches * ALIGN(ccs_height, 32);

f.handles[0] = gem_create(data->drm_fd, size[0] + size[1]);
@@ -470,6 +482,11 @@ static void test_output(data_t *data)
try_config(data, fb_flags | FB_COMPRESSED);
}

+ if (data->flags & TEST_BAD_AUX_STRIDE) {
+ try_config(data, fb_flags | FB_COMPRESSED | FB_MISALIGN_AUX_STRIDE);
+ try_config(data, fb_flags | FB_COMPRESSED | FB_SMALL_AUX_STRIDE);
+ }
+
primary = igt_output_get_plane_type(data->output, DRM_PLANE_TYPE_PRIMARY);
igt_plane_set_fb(primary, NULL);
igt_plane_set_rotation(primary, IGT_ROTATION_0);
@@ -543,6 +560,10 @@ igt_main
data.flags = TEST_BAD_CCS_HANDLE;
igt_subtest_f("pipe-%s-ccs-on-another-bo", pipe_name)
test_output(&data);
+
+ data.flags = TEST_BAD_AUX_STRIDE;
+ igt_subtest_f("pipe-%s-bad-aux-stride", pipe_name)
+ test_output(&data);
}

igt_fixture
--
2.11.0