• Luis R. Rodriguez's avatar
    IB/qib: use arch_phys_wc_add() · d4988623
    Luis R. Rodriguez authored
    This driver already makes use of ioremap_wc() on PIO buffers,
    so convert it to use arch_phys_wc_add().
    
    The qib driver uses a mmap() special case for when PAT is
    not used, this behaviour used to be determined with a
    module parameter but since we have been asked to just
    remove that module parameter this checks for the WC cookie,
    if not set we can assume PAT was used. If its set we do
    what we used to do for the mmap for when MTRR was enabled.
    
    The removal of the module parameter is OK given that Andy
    notes that even if users of module parameter are still around
    it will not prevent loading of the module on recent kernels.
    
    Cc: Doug Ledford <dledford@redhat.com>
    Cc: Toshi Kani <toshi.kani@hp.com>
    Cc: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
    Cc: Mike Marciniszyn <mike.marciniszyn@intel.com>
    Cc: Roland Dreier <roland@purestorage.com>
    Cc: Sean Hefty <sean.hefty@intel.com>
    Cc: Hal Rosenstock <hal.rosenstock@gmail.com>
    Cc: Dennis Dalessandro <dennis.dalessandro@intel.com>
    Cc: Andy Lutomirski <luto@amacapital.net>
    Cc: Suresh Siddha <sbsiddha@gmail.com>
    Cc: Ingo Molnar <mingo@elte.hu>
    Cc: Thomas Gleixner <tglx@linutronix.de>
    Cc: Juergen Gross <jgross@suse.com>
    Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
    Cc: Dave Airlie <airlied@redhat.com>
    Cc: Bjorn Helgaas <bhelgaas@google.com>
    Cc: Antonino Daplas <adaplas@gmail.com>
    Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
    Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
    Cc: Dave Hansen <dave.hansen@linux.intel.com>
    Cc: Arnd Bergmann <arnd@arndb.de>
    Cc: Michael S. Tsirkin <mst@redhat.com>
    Cc: Stefan Bader <stefan.bader@canonical.com>
    Cc: konrad.wilk@oracle.com
    Cc: ville.syrjala@linux.intel.com
    Cc: david.vrabel@citrix.com
    Cc: jbeulich@suse.com
    Cc: Roger Pau Monné <roger.pau@citrix.com>
    Cc: infinipath@intel.com
    Cc: linux-rdma@vger.kernel.org
    Cc: linux-fbdev@vger.kernel.org
    Cc: linux-kernel@vger.kernel.org
    Cc: xen-devel@lists.xensource.com
    Signed-off-by: default avatarLuis R. Rodriguez <mcgrof@suse.com>
    Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
    d4988623
qib_iba7322.c 265 KB