From: Daniel Vetter <daniel@ffwll.ch>
To: Damien Lespiau <damien.lespiau@intel.com>,
intel-gfx@lists.freedesktop.org
Subject: Re: [PATCH 1/3] drm/i915/skl: Split the SKL PCI ids by GT
Date: Fri, 30 Jan 2015 17:25:31 +0100 [thread overview]
Message-ID: <20150130162531.GG14009@phenom.ffwll.local> (raw)
In-Reply-To: <20150129201113.GM12268@jeffdesk>
On Thu, Jan 29, 2015 at 02:11:13PM -0600, Jeff McGee wrote:
> On Thu, Jan 29, 2015 at 02:13:38PM +0000, Damien Lespiau wrote:
> > We need to have a separate GT3 struct intel_device_info to declare they
> > have a second VCS. Let's start by splitting the PCI ids per-GT.
> >
> Would it be a good idea to do more programmatic population of
> these fields, rather than creating an entire new instance of the
> struct just to alter one field? This relates to our other
> conversation about the memory consumed by the 30+ device infos
> and the concern when adding new fields.
Broken record maintainer blurb:
Please provide hard data when justifying memory savings in the kmd. I see
a lot of people throwing around ideas and it seems a general concern, but
like with everything else we need to strike a cost/benefit balance and opt
for the most efficient way to save these bytes.
Which usually means shrinking down one of the runtime structs we allocate
by the thousands.
-Daniel
--
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
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next prev parent reply other threads:[~2015-01-30 16:24 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-29 14:13 [PATCH 1/3] drm/i915/skl: Split the SKL PCI ids by GT Damien Lespiau
2015-01-29 14:13 ` [PATCH 2/3] drm/i915/skl: Declare that GT3 has a second VCS Damien Lespiau
2015-02-04 1:55 ` Rodrigo Vivi
2015-02-04 9:27 ` Daniel Vetter
2015-02-04 13:22 ` [PATCH 2/3 v2] " Damien Lespiau
2015-02-04 15:43 ` Rodrigo Vivi
2015-01-29 14:13 ` [PATCH 3/3] drm/i915/skl: Remove the check enforcing VCS2 to be gen8 only Damien Lespiau
2015-01-31 17:17 ` shuang.he
2015-02-04 1:55 ` Rodrigo Vivi
2015-02-04 9:28 ` Daniel Vetter
2015-01-29 20:11 ` [PATCH 1/3] drm/i915/skl: Split the SKL PCI ids by GT Jeff McGee
2015-01-30 7:30 ` Jani Nikula
2015-01-30 16:05 ` Jeff McGee
2015-02-02 12:01 ` Damien Lespiau
2015-01-30 16:25 ` Daniel Vetter [this message]
2015-02-04 1:51 ` Rodrigo Vivi
2015-02-04 11:58 ` Damien Lespiau
2015-02-04 13:10 ` Damien Lespiau
2015-02-04 15:41 ` Rodrigo Vivi
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