[Intel-gfx] [PATCH 0/6] ring seqno wrap handling

Chris Wilson chris at chris-wilson.co.uk
Tue Dec 4 15:05:42 CET 2012


On Tue,  4 Dec 2012 15:11:59 +0200, Mika Kuoppala <mika.kuoppala at linux.intel.com> wrote:
> Hi,
> 
> As Ben suggested, explicitly syncing across wrap boundary
> revealed yet another set of issues that gem_stress didn't find.
> 
> So here is a patchset which addresses the syncing problems
> across wrap boundary. Chris helped me to carve out seqno handling
> ugliness from my initial attempts to handle the ring wrapping.
> 
> As I can't break this anymore, i added 6/6.
> --Mika
> 
> Mika Kuoppala (6):
>   drm/i915: Fix debugfs seqno info print to use uint
>   drm/i915: Don't emit semaphore wait if wrap happened
>   drm/i915: Split intel_ring_begin
>   drm/i915: Add intel_ring_handle_seqno wrap
Reviewed-by: Chris Wilson <chris at chris-wilson.co.uk>

>   drm/i915: Add debugfs entry to read/write next_seqno
Acked-by: Chris Wilson <chris at chris-wilson.co.uk>

>   drm/i915: Set initial seqno value close to wrap boundary
*washes hands*
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre



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