Re: xsrc/42262: Thinkpad T500 Intel GM45 Express X doesn't like i915drm

["S.P.Zeidler" <spz%serpens.de@localhost>]

The following reply was made to PR xsrc/42262; it has been noted by GNATS.

From: "S.P.Zeidler" <spz%serpens.de@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: jeremy.morse%gmail.com@localhost
Subject: Re: xsrc/42262: Thinkpad T500 Intel GM45 Express X doesn't like
        i915drm
Date: Tue, 17 Nov 2009 20:59:04 +0100

 Hi Jeremy,
 
 Thus wrote Jeremy Morse (jeremy.morse%gmail.com@localhost):
 
 >  It appears agp_i810_borrow does some sanity checks, so that only the
 >  base of the agp aperture can be mapped - i915_drm tries to map the
 >  status page at some other location, which is rejected by agp_i810_borrow.
 >  
 >  The attached patch should allow anywhere in the aperture to be mapped.
 >  (Please test with the previous patch too)
 
 No luck yet. :}
 
 current as of 20091116, plus the two patches, changed very little,
 X still crashes, log diff between "with both patches" and "with only the
 first patch" is:
 
 6c6
 < Current Operating System: NetBSD tucana.1st.de 5.99.21 NetBSD 5.99.21
  (TUCANA) #7: Tue Nov 10 23:22:13 CET 2009
  spz%tucana.1st.de@localhost:/home/netbsd/obj/amd64/home
  /netbsd/src/sys/arch/amd64/compile/TUCANA amd64
 ---
 > Current Operating System: NetBSD tucana.1st.de 5.99.22 NetBSD 5.99.22
  (TUCANA) #0: Tue Nov 17 03:31:17 CET 2009
   spz%tucana.1st.de@localhost:/home/netbsd/amd64/obj/sys/
   arch/amd64/compile/TUCANA amd64
 14c14
 < (==) Log file: "/var/log/Xorg.0.log", Time: Tue Nov 10 22:25:52 2009
 ---
 > (==) Log file: "/var/log/Xorg.0.log", Time: Tue Nov 17 10:02:47 2009
 411c411
 < (WW) intel(0): Register 0x61200 (PP_STATUS) changed from 0xc0000008
   to 0xd0000009
 ---
 > (WW) intel(0): Register 0x61200 (PP_STATUS) changed from 0xc0000008
   to 0xd000000a
 414c414
 < (WW) intel(0): Register 0x321b (FBC_FENCE_OFF) changed from 0xcf008200
   to 0xbf011a00
 ---
 > (WW) intel(0): Register 0x321b (FBC_FENCE_OFF) changed from 0xcf008200
   to 0xbb011a00
 502,508c502,507
 < (II) intel(0): Disable render standby.
 < (II) intel(0): xf86BindGARTMemory: bind key 0 at 0x01fff000 (pgoffset 8191)
 < (II) intel(0): xf86BindGARTMemory: bind key 1 at 0x036d2000 (pgoffset 14034)
 < (II) intel(0): xf86BindGARTMemory: bind key 2 at 0x036d3000 (pgoffset 14035)
 < (II) intel(0): xf86BindGARTMemory: bind key 3 at 0x036d4000 (pgoffset 14036)
 < (II) intel(0): xf86BindGARTMemory: bind key 4 at 0x04250000 (pgoffset 16976)
 < (II) intel(0): xf86BindGARTMemory: bind key 5 at 0x04dcc000 (pgoffset 19916)
 ---
 > (II) intel(0): xf86BindGARTMemory: bind key 2 at 0x01fff000 (pgoffset 8191)
 > (II) intel(0): xf86BindGARTMemory: bind key 3 at 0x036d2000 (pgoffset 14034)
 > (II) intel(0): xf86BindGARTMemory: bind key 4 at 0x036d3000 (pgoffset 14035)
 > (II) intel(0): xf86BindGARTMemory: bind key 5 at 0x036d4000 (pgoffset 14036)
 > (II) intel(0): xf86BindGARTMemory: bind key 6 at 0x04250000 (pgoffset 16976)
 > (II) intel(0): xf86BindGARTMemory: bind key 7 at 0x04dcc000 (pgoffset 19916)
 539c538
 < (II) intel(0): [drm] unmapping 8192 bytes of SAREA 0xffff800004276000 at 
0x7f7ffdfec000
 ---
 > (II) intel(0): [drm] unmapping 8192 bytes of SAREA 0xffff80000435d000 at 
 > 0x7f7ffdfec000
 
 regards,
        spz
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 spz%serpens.de@localhost (S.P.Zeidler)