bus_to_virt equivalent

From: Anil kumar (anils_r_at_yahoo.com)
Date: 11/08/05

  • Next message: Paul Jackson: "Re: SIGALRM ignored" 
    Date:	Mon, 7 Nov 2005 15:52:47 -0800 (PST)
To: linux-kernel@vger.kernel.org, linux-scsi@vger.kernel.org

    Hi,

    I am trying to port bus_to_virt and virt_to_bus to the
    DMA-mapping scheme.
    I found a way to move virt_to_bus() as follows:
    page = virt_to_page(cmd->request_buffer);
    offset = (unsigned long)address & ~PAGE_MASK;
    dma_addr_t addr = pci_map_page(dev, page, offset,
    size,direction);

    But now I want to get virtual address for dma_addr_t.

    Any help is greatly appreciated.

    with regards,
      Anil

                    
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