> -----Original Message----- > From: Kumar Gala [mailto:[EMAIL PROTECTED] > Sent: Thursday, February 08, 2007 3:16 PM > To: Li Yang-r58472 > Cc: Tabi Timur-B04825; netdev@vger.kernel.org; [EMAIL PROTECTED] > Subject: Re: [PATCH 1/4] ucc_geth: Change private immrbar_virt_to_phys to generic > iopa > > > On Feb 8, 2007, at 1:06 AM, Li Yang-r58472 wrote: > > >>> MURAM is a mmio region so it don't share the characteristic of main > >>> memory that phy_addr = virt_addr - PAGE_OFFSET. While they can > >>> both be > >>> mapped through page table using iopa(). > >> > >> Right, so when do you know if you'll be using MURAM or normal > >> memory? Why not just keep around a token that is the physical > >> address at the point you make the decision of MURAM vs normal memory. > > > > Yes, that can be a way. But as the virt to phy mapping is only used > > once, it's nothing bad to do it this way. > > The problem as I stated before with using iopa() is that its not > supported across platforms.
Yes, it is only for PPC32. But we don't have another API to do it. How about make it more generic to add PPC64 version? - Leo - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
