From: Daniel Vetter <daniel@ffwll.ch>
To: Ben Widawsky <ben@bwidawsk.net>
Cc: intel-gfx@lists.freedesktop.org
Subject: Re: [PATCH] drm/i915: Fix context size calculation on SNB/IVB/VLV
Date: Thu, 22 Aug 2013 22:16:34 +0200 [thread overview]
Message-ID: <20130822201634.GP26909@phenom.ffwll.local> (raw)
In-Reply-To: <20130822190530.GD7181@bwidawsk.net>
On Thu, Aug 22, 2013 at 12:05:31PM -0700, Ben Widawsky wrote:
> On Thu, Aug 22, 2013 at 07:23:13PM +0300, ville.syrjala@linux.intel.com wrote:
> > From: Ville Syrjälä <ville.syrjala@linux.intel.com>
> >
> > All the different context sizes reported in the CXT_SIZE register
> > aren't meant to be simply added together.
> >
> > While BSpec is somewhat unclear on the topic of the actual context
> > size, empirical tests have now revealed the truth. So let's add a
> > big fat comment to remind people how it all works.
> >
> > As a result of correctly interpreting CXT_SIZE, the IVB context
> > size is reduced from three pages to two, while SNB context size
> > remains at two pages.
> >
> > Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
> Acked-by: Ben Widawsky <ben@bwidawsk.net>
Queued for -next, thanks for the patch.
-Daniel
--
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
prev parent reply other threads:[~2013-08-22 20:16 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-22 16:23 [PATCH] drm/i915: Fix context size calculation on SNB/IVB/VLV ville.syrjala
2013-08-22 18:30 ` Ben Widawsky
2013-08-22 18:45 ` Ville Syrjälä
2013-08-22 18:52 ` Ville Syrjälä
2013-08-22 18:58 ` Ben Widawsky
2013-08-23 9:54 ` Ville Syrjälä
2013-08-22 19:05 ` Ben Widawsky
2013-08-22 20:16 ` Daniel Vetter [this message]
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