On 20/10/15 02:14, Vivek Kasireddy wrote:
Hi Tvrtko,

On Mon, 19 Oct 2015 11:20:05 +0100
Tvrtko Ursulin <tvrtko.ursu...@linux.intel.com> wrote:


Hi,

On 17/10/15 03:47, Vivek Kasireddy wrote:
The main goal of this subtest is to verify whether flipping a
framebuffer with a Y fb modifier (90/270 degree rotation) and
an associated Y-tiled object works or not.

Cc: Tvrtko Ursulin <tvrtko.ursu...@intel.com>
Signed-off-by: Vivek Kasireddy <vivek.kasire...@intel.com>
---
   tests/kms_rotation_crc.c | 83
++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 83
insertions(+)

diff --git a/tests/kms_rotation_crc.c b/tests/kms_rotation_crc.c
index cc9847e..bb9aecb 100644
--- a/tests/kms_rotation_crc.c
+++ b/tests/kms_rotation_crc.c
@@ -264,6 +264,83 @@ static void test_plane_rotation(data_t *data,
enum igt_plane plane_type) igt_require_f(valid_tests, "no valid
crtc/connector combinations found\n"); }

+static void test_plane_rotation_ytiled_obj(data_t *data, enum
igt_plane plane_type) +{
+       igt_display_t *display = &data->display;
+       uint64_t tiling = LOCAL_I915_FORMAT_MOD_Y_TILED;
+       uint32_t format = DRM_FORMAT_XRGB8888;
+       int bpp = igt_drm_format_to_bpp(format);
+       enum igt_commit_style commit = COMMIT_LEGACY;
+       int fd = data->gfx_fd;
+       int valid_tests = 0;
+       igt_output_t *output;
+       int ret;
+
+       if (plane_type == IGT_PLANE_PRIMARY || plane_type ==
IGT_PLANE_CURSOR) {
+               igt_require(data->display.has_universal_planes);
+               commit = COMMIT_UNIVERSAL;
+       }
+
+       for_each_connected_output(display, output) {
+               igt_plane_t *plane;
+               drmModeModeInfo *mode =
igt_output_get_mode(output);
+               unsigned int w = mode->hdisplay;
+               unsigned int h = mode->vdisplay;
+               unsigned int stride, size;
+               uint32_t gem_handle;
+
+               for (stride = 512; stride < (w * bpp / 8); stride
*= 2)
+                       ;
+               for (size = 1024*1024; size < stride * h; size *=
2)
+                       ;
+
+               gem_handle = gem_create(fd, size);
+               ret = __gem_set_tiling(fd, gem_handle,
I915_TILING_Y, stride);
+               igt_assert(ret == 0);
+
+               do_or_die(__kms_addfb(fd, gem_handle, w, h, stride,
+                         format, tiling,
LOCAL_DRM_MODE_FB_MODIFIERS,
+                         &data->fb.fb_id));
+
+               data->fb.width = w;
+               data->fb.height = h;
+               data->fb.gem_handle = gem_handle;
+               data->fb.stride = stride;
+               data->fb.size = size;
+               data->fb.tiling = tiling;
+               data->fb.drm_format = format;
+
+               plane = igt_output_get_plane(output, plane_type);
+               igt_require(igt_plane_supports_rotation(plane));
+
+               igt_plane_set_fb(plane, NULL);
+               igt_display_commit(display);
+
+               igt_plane_set_rotation(plane, data->rotation);
+               paint_squares(data, mode, IGT_ROTATION_0, plane);
+               igt_plane_set_fb(plane, &data->fb);
+
+               drmModeObjectSetProperty(fd,
plane->drm_plane->plane_id,
+                                        DRM_MODE_OBJECT_PLANE,
+                                        plane->rotation_property,
+                                        plane->rotation);
+               ret = igt_display_try_commit2(display, commit);
+               igt_assert(ret == 0);

This manages to trigger the WARN? How come since paint_squares above
will have created the normal VMA?

Yes, this does trigger the WARN regardless of whether paint_squares is
called or not. I am going to have to find out why the normal VMA was
not created when paint_squares was called. And, this subtest does not
restore the console cleanly which is something I also have to fix.

Could be that normal VMA is not created in the Cairo rendering path for Y tiled buffers. Since the final rendering is done via a blit and if you have PPGTT that would do it I think.

If PPGTT is always true for gen9 then this could work.

Regards,

Tvrtko
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