lkml.org 
[lkml]   [2007]   [Oct]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    From
    SubjectRe: Accessing 64-bit BARs
    Date
    Am Donnerstag, 4. Oktober 2007 schrieb yogeshwar sonawane:
    > Hello all,
    >
    > For accessing memory-mapped 64bit-BAR regions of a PCI card, the
    > respective BAR regions has to be made accessible to the kernel using
    > ioremap() function. Then readl()/writel() can be used on the address
    > returned by ioremap().

    You should use pci_iomap() to get an access pointer to the BAR. After this you
    can access the memory with ioread*() and iowrite*(). See "man pci_iomap(9)"
    if you build kernel manpages.

    Greetings,

    Eike
    [unhandled content-type:application/pgp-signature]
    \
     
     \ /
      Last update: 2007-10-04 14:49    [W:0.044 / U:92.404 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site