Hi Tvrtko, Along with this change I made following change in the kernel side. I was not sure if this is a hack of a legitimate change. Could you please give me a pointer about how to move fwd from here? Without this all Y-tiling tests would fail. --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -15406,8 +15406,7 @@ static int intel_framebuffer_init(struct drm_device *dev, if (obj->tiling_mode == I915_TILING_X) mode_cmd->modifier[0] = I915_FORMAT_MOD_X_TILED; else if (obj->tiling_mode == I915_TILING_Y) { - DRM_DEBUG("No Y tiling for legacy addfb\n"); - return -EINVAL; + mode_cmd->modifier[0] = I915_FORMAT_MOD_Y_TILED; } } Regards, Praveen -----Original Message----- From: Tvrtko Ursulin [mailto:tvrtko.ursulin@xxxxxxxxxxxxxxx] Sent: Tuesday, October 25, 2016 1:36 PM To: Paneri, Praveen <praveen.paneri@xxxxxxxxx>; intel-gfx@xxxxxxxxxxxxxxxxxxxxx Subject: Re: [PATCH 1/4] igt_fb: Add Y-tiling support On 24/10/2016 17:55, Praveen Paneri wrote: > This adds Y-tiling check in igt_create_fb_with_bo_size as now we > should also be able to create Y-tiled FBs. > > Signed-off-by: Praveen Paneri <praveen.paneri@xxxxxxxxx> > --- > lib/igt_fb.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/lib/igt_fb.c b/lib/igt_fb.c index 47472f4..bf1d372 100644 > --- a/lib/igt_fb.c > +++ b/lib/igt_fb.c > @@ -608,7 +608,8 @@ igt_create_fb_with_bo_size(int fd, int width, int height, > __func__, fb->gem_handle, fb->stride); > > if (tiling != LOCAL_DRM_FORMAT_MOD_NONE && > - tiling != LOCAL_I915_FORMAT_MOD_X_TILED) { > + tiling != LOCAL_I915_FORMAT_MOD_X_TILED && > + tiling != LOCAL_I915_FORMAT_MOD_Y_TILED) { > do_or_die(__kms_addfb(fd, fb->gem_handle, width, height, > fb->stride, format, tiling, > LOCAL_DRM_MODE_FB_MODIFIERS, &fb_id)); > This works now? Ie. doesn't hit "No Y Tiling for legacy addfb" error in the driver? Regards, Tvrtko _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/intel-gfx