Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> writes: > On Tue, May 17, 2016 at 03:27:56AM -0400, David Kershner wrote: >> This patchset moves the visorbus driver (fromdrivers/staging/unisys/visorbus) >> and its dependent headers files (from drivers/staging/unisys/include) >> out of staging into the main kernel tree. >> >> The visorbus driver is a bus driver for various paravirtualized devices >> presented within a Unisys s-Par guest environment. Drivers for these >> devices are also currently present under drivers/staging/unisys/, which we >> intend to also move out of staging immediately after visorbus. All of >> these other drivers are dependent upon visorbus and the include directory, >> which is why we would like to move these first. >> >> Our initial consultations with various members of the community have led us >> to the conclusion that the most appropriate locations for these is: >> arch/x86/visorbus/ (driver) >> include/linux/visorbus/ (header files) >> >> The rationale is that visorbus is dependent on x86-64 architecture. > > What makes it dependent on x86? What prevents it from running on some > other architecture (not the fact that no one has made such hardware, > just the code reasons please.) It's dependent on system firmware which is only available on the S-Par platform which is x86_64 only. The closest similarity is probably what you find on the PPC and Sparc platforms. Jes _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
