A bit off topic, but since the subject is pci resource allocation: As entered here: http://bugs.gentoo.org/show_bug.cgi?id=249832
the 2.6.24-gentoo-r3 kernel; iomem tree for my video display works, but has not worked in the following kernels: 2.6.26-gentoo-r2 2.6.27-gentoo-r2 2.6.28-rc4 (perfmon2 git) Using g5_defconfig on an iMac G5 iSight PowerMac 12,1 ppc64 (cross 32 userspace) PPC970FX Had to hack to arch/powerpc/kernel/pci-common.c in alloc_resource() so that I could run the 2.6.28 kernel with perfmon2. Thanks for all the work that gets done here, Raul -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Benjamin Herrenschmidt Sent: Thursday, December 04, 2008 4:54 PM To: Deepak Pandian Cc: linuxppc-dev@ozlabs.org Subject: Re: PCI Resource allocation On Fri, 2008-12-05 at 00:06 +0530, Deepak Pandian wrote: > Hi, > > In ppc4xx_pci i see the pci size to be declared as > u32 lah, lal, pciah, pcial, sa; I think the 4xx code is pretty much ok at this stage no ? > Also at many other places I see the pci region is not capable of > handling resources > 4GB. I am planning to work on this arch specific > code to make it handle pci resource of width greater than 4 GB. Which "many other places" ? > But before that i wanted to clarify whether the core kernel will be > able to handle pci regions with width greater than 4GB. There's at least one place in the generic PCI code, in pci_read_bridge_bases(), that needs fixing in a similar way as we already fixed __pci_read_base(), ie by testing the resource_size_t size rather than whether the platform is 64-bit. There might be a few more. Cheers, Ben. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
