On 2017.07.19 00:55:19 +0000, Zhang, Tina wrote: > > > > Of course we need that modifier for complete format info. Don't just think > > for > > i915 usage, there's possible modifier for other vendor driver, and it's > > required > > for e.g ADDFB2 in drm kms. Pls add it back in next version. > We definitely can add it back if it is thought to be useful. Just some > curious, as we don't produce the content in the GEM buffer (a.k.a we just > expose it here), why we need to know the tile mode. In addition, DRM API can > support the functionality to get the tile mode ot GEM buffer. >
That's vendor driver specific ioctl API instead of DRM API. And besides tiling there could be other vendor's modifiers which need to be kept for complete info. -- Open Source Technology Center, Intel ltd. $gpg --keyserver wwwkeys.pgp.net --recv-keys 4D781827
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