On Thu, Sep 25, 2014 at 03:00:53PM +0200, Jacek Danecki wrote: > On 09/25/14 14:26, Chris Wilson wrote: > > If we apply the fix in the kernel we break the > > one user of it in beignet but fix all the existing users of mesa. > > Are you talking about fix in kernel which will provide 36 bits GPU timestamp, > or about applying patch I've proposed? A kernel fix would be to use I915_READ64_2x32 and am debating whether the ABI says anything about what the hardware reports as opposed to the read N bytes at offset A interface of the ioctl. > If we add new register to register_whitelist, we will probably not break anything, > but we'll allow UMD's to use whole TIMESTAMP. Existing clients, as shipped, are broken because the value being returned is not the one they were expecting. -Chris -- Chris Wilson, Intel Open Source Technology Centre _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
