-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 12/04/12 17:40, Steven Newbury wrote: > On Thu, 12 Apr 2012, 17:07:33 BST, Yinghai Lu <yinghai at kernel.org> > wrote: > >> On Thu, Apr 12, 2012 at 4:22 AM, Steven Newbury >> <steve at snewbury.org.uk> wrote: >>> Thanks, that fixed it! :) I had a similar patch I've been >>> working on but I had my fix in the wrong place! >>> >>> In the working case, initially the BIOS has set GMA to within >>> the low system DRAM 0xC0000000 obviously invalid. This >>> conflict is detected and it's relallocated to 0x12000000. >>> >>> I've attempted to modify probe.c to disable 64-bit BARs not >>> allocated above 4G so they get reallocated above when possible >>> later. It seemed to work, but again broke GMA despite the BAR >>> originally containing an invalid address as mentioned above, it >>> seems for some reason something is different when the conflict >>> is detected and rellocated, compared to disabling it early then >>> allocating a valid value..? >>> I've created a new quirk utilising an extra PCI resource flag to force reallocation of the resource. It's the first approach I've had any success at. It does work. Only "Intel Page Flush" now gets allocated @0xe0000000!
00000000-0000ffff : reserved 00010000-0009efff : System RAM 0009f000-0009ffff : reserved 000c0000-000c7fff : Video ROM 000cf000-000cffff : Adapter ROM 000f0000-000fffff : System ROM 00100000-df65a7ff : System RAM 01000000-0136defd : Kernel code 0136defe-0169127f : Kernel data 0172f000-01809fff : Kernel bss df65a800-dfffffff : reserved df65a800-df6fffff : pnp 00:0d df700000-df7fffff : pnp 00:0d e0000000-e0000fff : Intel Flush Page f0000000-f01fffff : PCI Bus 0000:0d f6900000-f69fffff : PCI Bus 0000:09 f69f0000-f69fffff : 0000:09:00.0 f69f0000-f69fffff : tg3 f6a00000-f6bfffff : PCI Bus 0000:0d f6c00000-f6cfffff : PCI Bus 0000:0c f6cfe000-f6cfffff : 0000:0c:00.0 f6cfe000-f6cfffff : iwl4965 f6dfb700-f6dfb7ff : 0000:00:1f.3 f6dfb800-f6dfbfff : 0000:00:1f.2 f6dfb800-f6dfbfff : ahci f6dfc000-f6dfffff : 0000:00:1b.0 f6dfc000-f6dfffff : ICH HD audio f6e00000-f6efffff : 0000:00:02.0 f6f00000-f6ffffff : 0000:00:02.1 f8000000-fbffffff : PCI MMCONFIG 0000 [bus 00-3f] f8000000-fbffffff : reserved f8000000-fbffffff : pnp 00:0d fec00000-fec0ffff : reserved fec00000-fec003ff : IOAPIC 0 fed00000-fed003ff : HPET 0 fed00000-fed003ff : pnp 00:08 fed18000-fed1bfff : reserved fed18000-fed1bfff : pnp 00:0d fed1c000-fed1c3ff : 0000:00:1d.7 fed1c000-fed1c3ff : ehci_hcd fed1c400-fed1c7ff : 0000:00:1a.7 fed1c400-fed1c7ff : ehci_hcd fed20000-fed8ffff : reserved fed20000-fed3ffff : pnp 00:0d fed40000-fed44fff : pnp 00:0a fed45000-fed8ffff : pnp 00:0d feda0000-feda5fff : reserved feda0000-feda3fff : pnp 00:0d feda4000-feda4fff : pnp 00:0d feda5000-feda5fff : pnp 00:0d feda6000-feda6fff : pnp 00:0d fee00000-fee0ffff : reserved fee00000-fee0ffff : pnp 00:0d fee00000-fee00fff : Local APIC ffa00000-ffbfffff : pnp 00:0d ffc00000-ffdfffff : PCI Bus 0000:0b ffe00000-ffffffff : reserved ffe00000-ffffffff : pnp 00:0d 100000000-11fffffff : System RAM fefa00000-fefbfffff : PCI Bus 0000:09 fefc00000-fefdfffff : PCI Bus 0000:0c fefe00000-fefffffff : PCI Bus 0000:0b ff0000000-fffffffff : 0000:00:02.0 -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk+JtegACgkQGcb56gMuC61LDgCeO1gr1XT4iL4FK6QXrUq4E4SV LgwAnR4zdEVkVcfJ2nebHc2++tfi8UsK =QJc+ -----END PGP SIGNATURE----- -------------- next part -------------- A non-text attachment was scrubbed... Name: hack_to_force_realloc.diff Type: text/x-patch Size: 2629 bytes Desc: not available URL: <http://lists.freedesktop.org/archives/dri-devel/attachments/20120414/f8d1b6b7/attachment-0001.bin>