[PATCH 0/9] HW context support for Ironlake (was: Re: [PATCH 0/9] HW contest support for Ironlake)

[Ben Widawsky <ben@bwidawsk.net>]

Changed the mail subject... I'm not even sure what HW Contest support
might be.

On Sun, Jul 14, 2013 at 09:24:16AM -0700, Ben Widawsky wrote:
> Why do I always forget this...?
> 
> You guys can easily clone the kernel sources here for easier testing:
> 
> http://cgit.freedesktop.org/~bwidawsk/drm-intel/log/?h=ilk_contexts
> 
> On Sun, Jul 14, 2013 at 09:22:44AM -0700, Ben Widawsky wrote:
> > By the request of Ken, and Chris, I've added support for HW contexts to
> > Ironlake. This is not the first time I've done this, but I think I'll
> > skip the somewhat ugly history on the matter.
> > 
> > Our existing support for Ironlake sets up 2 contexts, the powerctx, and
> > the renderctx. The former is stored in special memory on GEN6+, and the
> > latter is *extremely* similar to the way we use default context on GEN6+
> > (ie. if users don't opt in to contexts, they are using it even if they
> > don't realize).
> > 
> > The patch series first tries to tie that renderctx into our existing
> > i915 context code, and then rips out the old renderctx. Powerctx is left
> > alone since it still really is a special case.
> > 
> > Finally, in the series I reenable rc6 on ILK. I've never had an issue
> > with this on my ILK, but I recommend anyone testing on it who sees
> > issues to try to disable it via modparam firstly.
> > 
> > The patch series is minimally tested. I told Chris and Ken at the
> > offset, they'd need to do the heavy lifting on the testing front.
> > 
> > Ben Widawsky (9):
> >   drm/i915: move ilk rc6 context setup
> >   drm/i915: Convert renderctx to a regular context
> >   drm/i915: Make ILK context objects more like others
> >   drm/i915: Add gen5 support to mi_set_context
> >   drm/i915: Use do_switch for ILK renderctx
> >   drm/i915: HW contexts for ILK
> >   drm/i915: Use only the default context for ILK
> >   drm/i915: Restore ILK powerctx pin attributes
> >   drm/i915: Re-enable rc6 on ILK (again^5)
> > 
> >  drivers/gpu/drm/i915/i915_debugfs.c     |  6 ----
> >  drivers/gpu/drm/i915/i915_drv.h         |  3 +-
> >  drivers/gpu/drm/i915/i915_gem_context.c | 28 ++++++++++++++---
> >  drivers/gpu/drm/i915/i915_reg.h         |  1 +
> >  drivers/gpu/drm/i915/intel_pm.c         | 56 ---------------------------------
> >  5 files changed, 25 insertions(+), 69 deletions(-)
> > 
> > -- 
> > 1.8.3.2
> > 
> 
> -- 
> Ben Widawsky, Intel Open Source Technology Center
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-- 
Ben Widawsky, Intel Open Source Technology Center