[Intel-gfx] [PATCH 1/2] drm/i915: Dumb down the semaphore logic

[Andrew Lutomirski]

On Wed, Sep 7, 2011 at 4:12 PM, Ben Widawsky <ben at bwidawsk.net> wrote:
> While I think the previous code is correct, it was hard to follow and
> hard to debug. Since we already have a ring abstraction, might as well
> use it to handle the semaphore updates and compares.
>
> I don't expect this code to make semaphores better or worse, but you
> never know...
>
> Cc: Chris Wilson <chris at chris-wilson.co.uk>
> Cc: Daniel Vetter <daniel.vetter at ffwll.ch>
> Cc: Eric Anholt <eric at anholt.net>
> Signed-off-by: Ben Widawsky <ben at bwidawsk.net>
> ---
>  drivers/gpu/drm/i915/i915_gem_execbuffer.c |    3 +-
>  drivers/gpu/drm/i915/i915_reg.h            |    7 +
>  drivers/gpu/drm/i915/intel_ringbuffer.c    |  176 +++++++++++++++++++++-------
>  drivers/gpu/drm/i915/intel_ringbuffer.h    |    7 +-
>  4 files changed, 145 insertions(+), 48 deletions(-)
>

Sadly, it still instantly crashes.

--Andy