Re: How to add x32 ABI support to PCI driver
On Mon, Aug 11, 2014 at 11:07:32PM -0700, Omkar Houddin wrote: > Hello Greg, > > I working on a char device driver. It is mostly based on the the scull device > driver in the LDD book. > It controls a HBA sitting on the PCIe BUS. What type of "Host Bus Adapter" needs to be a char driver? What userspace programs are talking to this device? Why do you need to be a kernel driver at all and not just a UIO userspace driver? Anyway, there's nothing "special" you need to do for x32 that you shouldn't have already done properly for your char interface to handle a mixture of 32/64bit kernel and userspace issues. So again, nothing should change, other than making sure you properly handle mixed user/kernel bit sizes properly. Do you have a pointer to your source code anywhere? thanks, greg k-h ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
Re: How to add x32 ABI support to PCI driver
Hello Greg, I working on a char device driver. It is mostly based on the the scull device driver in the LDD book. It controls a HBA sitting on the PCIe BUS. Thanks, OH On Mon, Aug 11, 2014 at 10:07 PM, Greg KH wrote: > On Mon, Aug 11, 2014 at 09:55:15PM -0700, Omkar Houddin wrote: > > Im trying to port the PCI driver(supports only 32 bit) from 2.6.31 )o > the > > latest kernel version using openSuse. > > Im doing it version by version. I was able to port it till 3.1 kernel > version. > > In the kernel 3.4 there is feature called X32 ABI support. I'm not > knowing how > > to add this. > > A PCI driver should not care about the processor or userspace ABI at > all. What type of driver are you working on? What hardware does it > control? > > thanks, > > greg k-h > ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
Re: How to add x32 ABI support to PCI driver
On Mon, Aug 11, 2014 at 09:55:15PM -0700, Omkar Houddin wrote: > Im trying to port the PCI driver(supports only 32 bit) from 2.6.31 )o the > latest kernel version using openSuse. > Im doing it version by version. I was able to port it till 3.1 kernel > version. > In the kernel 3.4 there is feature called X32 ABI support. I'm not knowing how > to add this. A PCI driver should not care about the processor or userspace ABI at all. What type of driver are you working on? What hardware does it control? thanks, greg k-h ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
How to add x32 ABI support to PCI driver
Im trying to port the PCI driver(supports only 32 bit) from 2.6.31 )o the latest kernel version using openSuse. Im doing it version by version. I was able to port it till 3.1 kernel version. In the kernel 3.4 there is feature called X32 ABI support. I'm not knowing how to add this. Could anyone tell me what exactly this is and how to add this feature and what should I be changing ? Regards, OH ___ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
