From mboxrd@z Thu Jan  1 00:00:00 1970
From: Damien Lespiau <damien.lespiau@intel.com>
Subject: Re: [PATCH 07/10] drm/i915/bdw: collect semaphore error
 state
Date: Mon, 14 Jul 2014 11:04:22 +0100
Message-ID: <20140714100422.GA25136@strange.icx.intel.com>
References: <1404147224-2978-1-git-send-email-rodrigo.vivi@intel.com>
 <1404147224-2978-7-git-send-email-rodrigo.vivi@intel.com>
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To: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: intel-gfx@lists.freedesktop.org, Ben Widawsky <ben@bwidawsk.net>
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On Mon, Jun 30, 2014 at 09:53:41AM -0700, Rodrigo Vivi wrote:
> +	for_each_ring(useless, dev_priv, i) {
> +		u16 signal_offset =
> +			(GEN8_SIGNAL_OFFSET(ring, i) & PAGE_MASK) / 4;
> +		u32 *tmp = error->semaphore_obj->pages[0];
> +
> +		ering->semaphore_mboxes[i] = tmp[signal_offset];
> +		ering->semaphore_seqno[i] = ring->semaphore.sync_seqno[i];
> +	}
> +}

This loops around all the rings, but semaphore_mboxes[] and
semaphore_seqno[] are of size (I915_NUM_RINGS - 1).

-- 
Damien