From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mika Kuoppala Subject: Re: [PATCH] drm/i915: Handle sync_seqno correctly when seqno has wrapped. Date: Mon, 19 Nov 2012 12:55:22 +0200 Message-ID: <87obitc15x.fsf@gaia.fi.intel.com> References: <1352814696-2154-1-git-send-email-mika.kuoppala@intel.com> <20121113083926.340d40d5@bwidawsk.net> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mga14.intel.com (mga14.intel.com [143.182.124.37]) by gabe.freedesktop.org (Postfix) with ESMTP id 5154CE60C7 for ; Mon, 19 Nov 2012 02:55:25 -0800 (PST) In-Reply-To: <20121113083926.340d40d5@bwidawsk.net> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org Errors-To: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org To: Ben Widawsky Cc: intel-gfx@lists.freedesktop.org List-Id: intel-gfx@lists.freedesktop.org On Tue, 13 Nov 2012 08:39:26 -0800, Ben Widawsky wrote: > Can you add another patch on top of this to have the starting seqno be a > near pre-wrap value so we can catch bugs even without igt. I tried that but failed. I suspect that there is something in hw/sw that doesn't like if first seqno is >0x80000000. Something in hw needs to initialized explicitly if seqno is not starting from 1?