On 09/12/15 16:54, Jake Oshins wrote: >> -----Original Message----- >> From: Marc Zyngier [mailto:marc.zyngier@xxxxxxx] >> Sent: Wednesday, December 9, 2015 8:51 AM >> To: Jake Oshins <jakeo@xxxxxxxxxxxxx>; gregkh@xxxxxxxxxxxxxxxxxxx; KY >> Srinivasan <kys@xxxxxxxxxxxxx>; linux-kernel@xxxxxxxxxxxxxxx; >> devel@xxxxxxxxxxxxxxxxxxxxxx; olaf@xxxxxxxxx; apw@xxxxxxxxxxxxx; >> vkuznets@xxxxxxxxxx; tglx@xxxxxxxxxxxxx; Haiyang Zhang >> <haiyangz@xxxxxxxxxxxxx>; bhelgaas@xxxxxxxxxx; linux- >> pci@xxxxxxxxxxxxxxx >> Subject: Re: [PATCH v7 4/7] PCI: Add fwnode_handle to pci_sysdata >> >> On 05/12/15 00:36, jakeo@xxxxxxxxxxxxx wrote: >>> From: Jake Oshins <jakeo@xxxxxxxxxxxxx> >>> >>> This patch adds an fwnode_handle to struct pci_sysdata, which is >>> used by the next patch in the series when trying to locate an >>> IRQ domain associated with a root PCI bus. >>> >>> Signed-off-by: Jake Oshins <jakeo@xxxxxxxxxxxxx> >>> --- >>> arch/x86/include/asm/pci.h | 15 +++++++++++++++ >>> include/asm-generic/pci.h | 4 ++++ >>> 2 files changed, 19 insertions(+) >>> >> >> [...] >> >>> diff --git a/include/asm-generic/pci.h b/include/asm-generic/pci.h >>> index f24bc51..4092886 100644 >>> --- a/include/asm-generic/pci.h >>> +++ b/include/asm-generic/pci.h >>> @@ -21,4 +21,8 @@ static inline int pci_get_legacy_ide_irq(struct pci_dev >> *dev, int channel) >>> #define PCI_DMA_BUS_IS_PHYS (1) >>> #endif >>> >>> +#ifndef pci_root_bus_fwnode >>> +#define pci_root_bus_fwnode(bus) ((void)(bus), NULL) >>> +#endif >>> + >>> #endif /* _ASM_GENERIC_PCI_H */ >>> >> >> This breaks at least arm64 (as you can see from the reply to patch #5, >> because it does have its own asm/pci.h. Instead, how about moving this >> to linux/pci.h, just after the include of asm/pci.h? I just gave it a >> go, and it seems to work nicely (the first hunk fixes the rest of the >> arm64 compile issue): > > Thank you. I was just working through how to do that. I lost a > couple of days trying to figure out how to cross-compile for arm64 to > check that any fix that I made actually worked. (In the process, > I've completely messed up my development machine. Any pointers to > the right strategy would be appreciated.) My own strategy is pretty simple. It involves: - downloading a binary toolchain ([1] for example) - untar this somewhere, putting the gcc-linaro-5.2-2015.11-x86_64_aarch64-linux-gnu/bin directory in your PATH - and then the usual "make ARCH=arm64 defconfig && make ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- all" That's of course assuming you're using a Linux x86-64 box for cross-compiling. I also cross-compile from 32bit ARM, but I doubt you'd be interested... ;-) Cheers, M. [1] https://releases.linaro.org/components/toolchain/binaries/5.2-2015.11/aarch64-linux-gnu/gcc-linaro-5.2-2015.11-x86_64_aarch64-linux-gnu.tar.xz -- Jazz is not dead. It just smells funny... _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
