-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On 14/04/12 21:48, Yinghai Lu wrote: > On Sat, Apr 14, 2012 at 12:21 PM, Steven Newbury > <steve@xxxxxxxxxxxxxxx> wrote: >> -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 >> >> On 14/04/12 20:08, Steven Newbury wrote: >>> On 14/04/12 19:42, Steven Newbury wrote: >>>> On 14/04/12 19:05, Steven Newbury wrote: >>>>> On 14/04/12 18:37, Steven Newbury wrote: >>>>>> On 12/04/12 17:40, Steven Newbury wrote: >>>>>>> On Thu, 12 Apr 2012, 17:07:33 BST, Yinghai Lu >>>>>>> <yinghai@xxxxxxxxxx> wrote: >>> >>>>>>>> On Thu, Apr 12, 2012 at 4:22 AM, Steven Newbury >>>>>>>> <steve@xxxxxxxxxxxxxxx> 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! >>> >>> >>>>> Hopefully this should fix "Intel Flush Page" >>>> Need to export pci_bus_alloc_resource_fit for intel-gtt. >>> Nearly worked... Or at least it should have worked, but for >>> some reason the allocator failed to utilise >>> 0xe0000000-0xefffffff for 04:00.0 BAR0..? >>> >>> >>> pci 0000:03:08.0: BAR 15: can't assign mem pref (size >>> 0x18000000) >> Ah! Not enough space for the bridge window!:( >> > > please append pci=norom ... > That worked. Except of course the radeon driver can't POST the card without the ROM! :-P -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.19 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk+KoNwACgkQGcb56gMuC62uAACfdaoIb/NT7+7xGIa4G+Wtw0K0 /IsAoL8NIg6g4q3qoTJuQpp6WyqDYUfu =OzC5 -----END PGP SIGNATURE----- -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
