[Intel-gfx] [PATCH 3/5] drm/i915: forcewake struct mutex locking fixes

[Chris Wilson]

On Fri, 22 Apr 2011 09:20:17 -0700, Ben Widawsky <ben at bwidawsk.net> wrote:
> I don't understand what you're asking for. I'm pretty convinced I need
> the mutex protected intel_update_fbc, because the call trace could be:
> 
> intel_update_fbc()
> intel_enable_fbc()
> ironlake_enable_fbc()
> sandybridge_blit_fbc_update()
> gen6_gt_force_wake_get()
> 
> 
> Could you elaborate?

It's a pre-ILK code path, so no magic GT handling required.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre