consistent_alloc() on PPC

Jörn Engel joern at
Thu Jan 20 02:14:56 EST 2005

On Wed, 19 January 2005 17:23:42 +0530, Sachin P wrote:
> I am facing some problems porting my drivers to the PPC platform . Am
> currently using consistent_alloc() and consistent_free() to
> allocate/free (non-cached) DMA ble memory.
> Is there any function/patch/macro, equivalent to
> phy_to_virt()/virt_to_phy() for memory returned by consistent_alloc()?

Imo not.  I ended up writing a private version of it, along these

static inline unsigned long private_io_to_bus(void *addr)
        return iopa((unsigned long)addr) + offset;

Wouldn't hurt if you could generalize it somehow.


Everything should be made as simple as possible, but not simpler.
-- Albert Einstein

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