Re: [Intel-gfx] [PATCH i-g-t 2/2] configure: Bump required libdrm version to 2.4.60

From: Jeff McGee <jeff.mcgee@intel.com>
To: Daniel Vetter <daniel@ffwll.ch>
Cc: beignet@lists.freedesktop.org, Rob Clark <robdclark@gmail.com>,
	Intel Graphics Development <intel-gfx@lists.freedesktop.org>,
	"dri-devel@lists.freedesktop.org"
	<dri-devel@lists.freedesktop.org>
Subject: Re: [Intel-gfx] [PATCH i-g-t 2/2] configure: Bump required libdrm version to 2.4.60
Date: Tue, 10 Mar 2015 13:06:44 -0700	[thread overview]
Message-ID: <20150310200644.GI3263@jeffdesk> (raw)
In-Reply-To: <20150310184703.GS3800@phenom.ffwll.local>

On Tue, Mar 10, 2015 at 07:47:03PM +0100, Daniel Vetter wrote:
> On Tue, Mar 10, 2015 at 01:58:52PM -0400, Rob Clark wrote:
> > On Tue, Mar 10, 2015 at 12:59 PM, Jeff McGee <jeff.mcgee@intel.com> wrote:
> > > On Tue, Mar 10, 2015 at 08:37:30AM +0100, Daniel Vetter wrote:
> > >> On Mon, Mar 09, 2015 at 04:41:02PM -0700, jeff.mcgee@intel.com wrote:
> > >> > From: Jeff McGee <jeff.mcgee@intel.com>
> > >> >
> > >> > tests/core_getparams needs the new libdrm interfaces for
> > >> > querying subslice and EU counts.
> > >> >
> > >> > For: VIZ-4636
> > >> > Signed-off-by: Jeff McGee <jeff.mcgee@intel.com>
> > >> > ---
> > >> >  configure.ac | 2 +-
> > >> >  1 file changed, 1 insertion(+), 1 deletion(-)
> > >> >
> > >> > diff --git a/configure.ac b/configure.ac
> > >> > index 16d6a2e..88a1c3d 100644
> > >> > --- a/configure.ac
> > >> > +++ b/configure.ac
> > >> > @@ -82,7 +82,7 @@ if test "x$GCC" = "xyes"; then
> > >> >  fi
> > >> >  AC_SUBST(ASSEMBLER_WARN_CFLAGS)
> > >> >
> > >> > -PKG_CHECK_MODULES(DRM, [libdrm_intel >= 2.4.52 libdrm])
> > >> > +PKG_CHECK_MODULES(DRM, [libdrm_intel >= 2.4.60 libdrm])
> > >>
> > >> Please don't and instead copypaste the new structs/defines with a local_
> > >> prefix like we do it for all the other new igt testcases. Forcing libdrm
> > >> to get updated for igt all the time can get annoying fast.
> > >> -Daniel
> > >>
> > > In this case I'm trying to exercise new API functions in libdrm which
> > > wrap the GETPARAM ioctl. Would you rather me bypass the wrapper to
> > > avoid requiring updated libdrm? I can do that, but it fails to test the
> > > complete path that client would use.
> > 
> > 
> > Am I missing something, or does 2.4.60 not exist yet?
> > 
> > That said dependency bumps for igt seem like less of an issue than
> > dependency bumps for mesa..  I mean if you are using igt you are
> > probably on the latest anyways..  I'm not sure why Daniel is so
> > concerned about that..
> > 
> > (but dependency bumps to something that doesn't exist yet should
> > perhaps be avoided)
> 
> I'd like to avoid massive depency loops for igt tests so that I can merge
> the testcase right when the patches land in -nightly. Otherwise there's
> always a small delay involved where regression can creep in. Also if I
> have to update libdrm every time I update igt that's annoying since
> without that I don't have to install/update anything at all - I run igt
> in-place. And we've used the LOCAL_ prefixes for pretty much every abi
> addition in igt tests thus far.
> -Daniel

I understand that and it certainly makes sense when libdrm is only
providing defines or structs. But as I said, in this case there is
code in libdrm (the wrapper) that we could test as part of the
complete path. Are you recommending that I implement duplicate
wrapper functions in igt with the local prefix?
-Jeff
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