This started out as a fairly trivial "add pci_mmap_page_range() for ARM64" patch. But pci_mmap_page_range() is a vile interface, taking "user visible" resource addresses converted with pci_resource_to_user() on those platforms unlucky enough to use that... and even in the *sane* sysfs-based mmap method, we convert through user addresses to call the platform-specific method. In most cases there's just no need for any of this crap. We can migrate most architectures to a generic implementation without much thought, and the few that aren't converted in this series can probably be added fairly easily too but need a little more arch-specific attention. Utterly untested for now; I'll do some testing while I deal with the inevitable bikeshedding. David Woodhouse (17): pci: Fix pci_mmap_fits() for HAVE_PCI_RESOURCE_TO_USER platforms pci: Fix another sanity check bug in /proc/pci mmap pci: Only allow WC mmap on prefetchable resources pci: Add arch_can_pci_mmap_wc() macro pci: Move multiple declarations of pci_mmap_page_range() to <linux/pci.h> pci: Add HAVE_PCI_MMAP_IO to architectures which can mmap() I/O space pci: Use BAR index in sysfs attr->private instead of resource pointer pci: Add BAR index argument to pci_mmap_page_range() pci: Add pci_mmap_resource_range() and use it for ARM64 arm: Use generic pci_mmap_resource_range() cris: Use generic pci_mmap_resource_range() mips: Use generic pci_mmap_resource_range() mn10300: Use generic pci_mmap_resource_range() parisc: Use generic pci_mmap_resource_range() sh: Use generic pci_mmap_resource_range() unicore: Use generic pci_mmap_resource_range() arm64: Do not expose PCI mmap through procfs Documentation/filesystems/sysfs-pci.txt | 9 +++- arch/arm/include/asm/pci.h | 3 +- arch/arm/kernel/bios32.c | 19 ------- arch/arm64/include/asm/pci.h | 3 ++ arch/cris/arch-v32/drivers/pci/bios.c | 22 -------- arch/cris/include/asm/pci.h | 4 +- arch/ia64/include/asm/pci.h | 4 +- arch/ia64/pci/pci.c | 3 +- arch/microblaze/include/asm/pci.h | 6 +-- arch/microblaze/pci/pci-common.c | 2 +- arch/mips/include/asm/pci.h | 5 +- arch/mips/pci/pci.c | 24 --------- arch/mn10300/include/asm/pci.h | 4 +- arch/mn10300/unit-asb2305/pci-asb2305.c | 23 --------- arch/parisc/include/asm/pci.h | 4 +- arch/parisc/kernel/pci.c | 28 ---------- arch/powerpc/include/asm/pci.h | 9 ++-- arch/powerpc/kernel/pci-common.c | 3 +- arch/sh/drivers/pci/pci.c | 21 -------- arch/sh/include/asm/pci.h | 4 +- arch/sparc/include/asm/pci_64.h | 5 +- arch/sparc/kernel/pci.c | 6 +-- arch/unicore32/include/asm/pci.h | 3 +- arch/unicore32/kernel/pci.c | 23 --------- arch/x86/include/asm/pci.h | 6 +-- arch/x86/pci/i386.c | 3 +- arch/xtensa/include/asm/pci.h | 11 ++-- arch/xtensa/kernel/pci.c | 5 +- drivers/pci/Makefile | 2 +- drivers/pci/mmap.c | 90 +++++++++++++++++++++++++++++++++ drivers/pci/pci-sysfs.c | 77 +++++++++++++--------------- drivers/pci/proc.c | 55 ++++++++++++++------ include/linux/pci.h | 19 +++++++ 33 files changed, 233 insertions(+), 272 deletions(-) create mode 100644 drivers/pci/mmap.c -- 2.9.3
