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27a90700a4
To support >32-bit physical addresses for UIO_MEM_PHYS type we need to extend the width of 'addr' in struct uio_mem. Numerous platforms like embedded PPC, ARM, and X86 have support for systems with larger physical address than logical. Since 'addr' may contain a physical, logical, or virtual address the easiest solution is to just change the type to 'phys_addr_t' which should always be greater than or equal to the sizeof(void *) such that it can properly hold any of the address types. For physical address we can support up to a 44-bit physical address on a typical 32-bit system as we utilize remap_pfn_range() for the mapping of the memory region and pfn's are represnted by shifting the address by the page size (typically 4k). Signed-off-by: Kai Jiang <Kai.Jiang@freescale.com> Signed-off-by: Minghuan Lian <Minghuan.Lian@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Hans J. Koch <hjk@hansjkoch.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> |
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| .gitignore | ||
| 80211.tmpl | ||
| alsa-driver-api.tmpl | ||
| debugobjects.tmpl | ||
| device-drivers.tmpl | ||
| deviceiobook.tmpl | ||
| drm.tmpl | ||
| filesystems.tmpl | ||
| gadget.tmpl | ||
| genericirq.tmpl | ||
| kernel-api.tmpl | ||
| kernel-hacking.tmpl | ||
| kernel-locking.tmpl | ||
| kgdb.tmpl | ||
| libata.tmpl | ||
| librs.tmpl | ||
| lsm.tmpl | ||
| Makefile | ||
| mcabook.tmpl | ||
| media_api.tmpl | ||
| mtdnand.tmpl | ||
| networking.tmpl | ||
| rapidio.tmpl | ||
| regulator.tmpl | ||
| s390-drivers.tmpl | ||
| scsi.tmpl | ||
| sh.tmpl | ||
| stylesheet.xsl | ||
| tracepoint.tmpl | ||
| uio-howto.tmpl | ||
| usb.tmpl | ||
| writing_usb_driver.tmpl | ||
| writing-an-alsa-driver.tmpl | ||
| z8530book.tmpl | ||