Re: drm/i915: split PCI IDs out into i915_drm.h v4

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On Sun, Sep 01, 2013 at 04:28:39PM +0200, Sedat Dilek wrote:
> On Sun, Sep 1, 2013 at 4:10 PM, Sedat Dilek <sedat.dilek@xxxxxxxxx> wrote:
> 
> [...]
> 
> > [ include/drm/i915_pciids.h ]
> > ...
> > +#define INTEL_SNB_M_IDS(info) \
> > + INTEL_VGA_DEVICE(0x0106, info), \
> > + INTEL_VGA_DEVICE(0x0116, info), \ <--- I have this one! "GT2 mobile"?
> > + INTEL_VGA_DEVICE(0x0126, info)
> > +
> > +#define INTEL_IVB_M_IDS(info) \
> > + INTEL_VGA_DEVICE(0x0156, info), /* GT1 mobile */ \
> > + INTEL_VGA_DEVICE(0x0166, info) /* GT2 mobile */
> >
> > I remember to have seen GT2 for my Sandybridge system (Samsung
> > series-5 ultrabook) in the logs.
> 
> $ grep -i sandy /var/log/Xorg.0.log
> [    18.160] (II) intel(0): SNA initialized with Sandybridge (gen6, gt2) backend
> 
> BTW, is there somewhere on the Wild Wild Internet a doc/wiki where I
> can have a "human-readable" list of Intel GPU hardware (there exist
> GenX and GTY)?
> The X RadeonFeature wiki has a section "Decoder ring for engineering
> vs marketing names" in [1].
> 
> As a last thing, I noticed that brand-names like "SandyBridge" are
> written differently in the Linux graphics stack (kernel-drm, libdrm,
> mesa3d and intel-ddx). I can't say what is the "official" brand-name.
> ( The reason why I ask is for example searching for patterns in the sources. )
> 
> $ dmesg | grep -i sandy
> [    0.081443] Performance Events: PEBS fmt1+, 16-deep LBR,
> SandyBridge events, full-width counters, Intel PMU driver.
> 
> $ grep -i sandy /var/log/Xorg.0.log
> [    18.160] (II) intel(0): SNA initialized with Sandybridge (gen6, gt2) backend

We have to be careful as Sandybridge isn't a brand or product name but a
code name, and Intel marketing gets upset if we put the codenames into
user visible strings. (I can understand their need for control over
product image and branding, but the codenames are much easier to
understand!) The popular form for the *bridge, *well, *trail, *view is
as one word with a single leading capital letter. The codenames are,
I believe, or at least once were, the names of geographic features
around the Intel campuses. And different types of features (rivers,
hills, etc) were used to denote different types/combinations of chips.

Wikipedia is the best source for such information as product to code
name to features. Though ark.intel.com has all the information if you
have a glossary (wikipedia) to hand, and have product names to search.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre
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