Date: Sat, 17 Dec 2005 11:44:42 +0100 From: "O. Hartmann" <ohartman@mail.uni-mainz.de> To: Eric Anholt <eta@lclark.edu> Cc: freebsd-amd64@freebsd.org, Jung-uk Kim <jkim@freebsd.org> Subject: Re: device drm with PCIe? Message-ID: <43A3EC1A.5050209@mail.uni-mainz.de> In-Reply-To: <1134778435.1404.100.camel@leguin> References: <43A1636A.6030108@mail.uni-mainz.de> <200512161230.41499.jkim@FreeBSD.org> <43A30B25.3030102@mail.uni-mainz.de> <200512161422.00688.jkim@FreeBSD.org> <43A34647.1030404@mail.uni-mainz.de> <1134778435.1404.100.camel@leguin>
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This is a multi-part message in MIME format. --------------040106030302010808080402 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Eric Anholt wrote: >On Fri, 2005-12-16 at 23:57 +0100, O. Hartmann wrote: > > >>Jung-uk Kim wrote: >> >> >> >>>On Friday 16 December 2005 01:44 pm, O. Hartmann wrote: >>> >>> >>> >>> >>>>Jung-uk Kim schrieb: >>>> >>>> >>>> >>>> >>>>>On Thursday 15 December 2005 07:36 am, O. Hartmann wrote: >>>>> >>>>> >>>>> >>>>> >>>>>>Normally 'device drm' is only useable in conjunction with 'device >>>>>>agp'. A lot of amd64 based boxes now use PEG slots for their >>>>>>graphics accelerators. Is it possible to utilize 'drm' with PCIe >>>>>>devices? >>>>>> >>>>>> >>>>>> >>>>>> >>>>>Yes. It should work, at least in theory. ;-) >>>>> >>>>> >>>>> >>>>> >>>>> >>>>>>Does device agp has any effect on PCIe graphics accelerators? >>>>>> >>>>>> >>>>>> >>>>>> >>>>>No. You don't need it for PCI-Express controller. >>>>> >>>>> >>>>> >>>>> >>>>Ok, but without AGP (device agp) in my kernel config file, I get a >>>>lot of errors while linking the kernel of missing agp_xxxxx >>>>routines (FreeBSD 6.0-STABLE/amd64). So, device drm alone seems to >>>>be useless (although in conjunction with device pci). >>>> >>>> >>>> >>>> >>>Did you try 'make clean; make cleandepend; make depend; make'? >>> >>> >>> >>> >>Doesn't work without device agp in kernel config file! >> >>linking kernel >>drm_agpsupport.o(.text+0x22c): In function `drm_agp_info': >>: undefined reference to `agp_get_info' >>drm_agpsupport.o(.text+0x324): In function `drm_agp_acquire': >>: undefined reference to `agp_acquire' >>drm_agpsupport.o(.text+0x374): In function `drm_agp_release': >>: undefined reference to `agp_release' >>drm_agpsupport.o(.text+0x3cf): In function `drm_agp_enable': >>: undefined reference to `agp_enable' >>drm_agpsupport.o(.text+0x45b): In function `drm_agp_init': >>: undefined reference to `agp_find_device' >>drm_agpsupport.o(.text+0x4ed): In function `drm_agp_init': >>: undefined reference to `agp_get_info' >>drm_agpsupport.o(.text+0x534): In function `drm_agp_allocate_memory': >> >> > >Correct, the DRM module requires AGP. > > > So, due to this limitation, drm on any PCIe-based AMD64 platform is useless so far? --------------040106030302010808080402--
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