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 ... Yinghai -- 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
